From 38581ddc48b761936fc65948d0a0f6fe0db1aa31 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 11 Dec 2018 10:07:06 -0800 Subject: clk: Collapse gpio clk kerneldoc We have two kernel-docs for gpio clks, but there is only one gpio clk structure. Collapse the two so we have proper kerneldoc for this basic clk type. Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 23 ++++++++--------------- 1 file changed, 8 insertions(+), 15 deletions(-) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index e443fa9fa859..b65b48cc31f1 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -712,16 +712,19 @@ struct clk_hw *clk_hw_register_composite(struct device *dev, const char *name, unsigned long flags); void clk_hw_unregister_composite(struct clk_hw *hw); -/*** - * struct clk_gpio_gate - gpio gated clock +/** + * struct clk_gpio - gpio gated clock * * @hw: handle between common and hardware-specific interfaces * @gpiod: gpio descriptor * - * Clock with a gpio control for enabling and disabling the parent clock. - * Implements .enable, .disable and .is_enabled + * Clock with a gpio control for enabling and disabling the parent clock + * or switching between two parents by asserting or deasserting the gpio. + * + * Implements .enable, .disable and .is_enabled or + * .get_parent, .set_parent and .determine_rate depending on which clk_ops + * is used. */ - struct clk_gpio { struct clk_hw hw; struct gpio_desc *gpiod; @@ -738,16 +741,6 @@ struct clk_hw *clk_hw_register_gpio_gate(struct device *dev, const char *name, unsigned long flags); void clk_hw_unregister_gpio_gate(struct clk_hw *hw); -/** - * struct clk_gpio_mux - gpio controlled clock multiplexer - * - * @hw: see struct clk_gpio - * @gpiod: gpio descriptor to select the parent of this clock multiplexer - * - * Clock with a gpio control for selecting the parent clock. - * Implements .get_parent, .set_parent and .determine_rate - */ - extern const struct clk_ops clk_gpio_mux_ops; struct clk *clk_register_gpio_mux(struct device *dev, const char *name, const char * const *parent_names, u8 num_parents, struct gpio_desc *gpiod, -- cgit v1.2.3 From 9fe9b7ab4d050eaf646728752b320043c59dc214 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 11 Dec 2018 10:49:40 -0800 Subject: clk: Document deprecated things We don't want driver authors to use the struct clk based registration and provider APIs. Instead, they should use the clk_hw based APIs. Add some notes in the kerneldoc to this effect. Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index b65b48cc31f1..adb8a58e213c 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -24,7 +24,7 @@ #define CLK_SET_RATE_PARENT BIT(2) /* propagate rate change up one level */ #define CLK_IGNORE_UNUSED BIT(3) /* do not gate even if unused */ /* unused */ -#define CLK_IS_BASIC BIT(5) /* Basic clk, can't do a to_clk_foo() */ +#define CLK_IS_BASIC BIT(5) /* deprecated, don't use */ #define CLK_GET_RATE_NOCACHE BIT(6) /* do not use the cached clk rate */ #define CLK_SET_RATE_NO_REPARENT BIT(7) /* don't re-parent on rate change */ #define CLK_GET_ACCURACY_NOCACHE BIT(8) /* do not use the cached clk accuracy */ -- cgit v1.2.3 From 31f6e8700fa25b3b9534da9a1d787661b8adad87 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 11 Dec 2018 10:58:33 -0800 Subject: clk: Document CLK_MUX_READ_ONLY mux flag This flag isn't documented. Document it. Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index adb8a58e213c..edff3c5883bc 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -499,6 +499,8 @@ void clk_hw_unregister_divider(struct clk_hw *hw); * register, and mask of mux bits are in higher 16-bit of this register. * While setting the mux bits, higher 16-bit should also be updated to * indicate changing mux bits. + * CLK_MUX_READ_ONLY - The mux registers can't be written, only read in the + * .get_parent clk_op. * CLK_MUX_ROUND_CLOSEST - Use the parent rate that is closest to the desired * frequency. */ -- cgit v1.2.3 From 7374faa92edce7af6d69d0a2968198e9b919a281 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 11 Dec 2018 10:58:54 -0800 Subject: clk: Remove 'flags' member of struct clk_fixed_rate This member is never used nor documented in the kerneldoc. Remove it. Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index edff3c5883bc..a1705a0f08c7 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -307,7 +307,6 @@ struct clk_fixed_rate { struct clk_hw hw; unsigned long fixed_rate; unsigned long fixed_accuracy; - u8 flags; }; #define to_clk_fixed_rate(_hw) container_of(_hw, struct clk_fixed_rate, hw) -- cgit v1.2.3 From 372c9329e5aa896683999301d9cb10ef14da92af Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Thu, 11 Jan 2018 17:48:29 +0100 Subject: dma-buf: clarify locking documentation for reservation_object_get_excl MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The documentation was misleading, as for a lot of use-cases holding the RCU read side lock is sufficient. Signed-off-by: Lucas Stach Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20180111165302.25556-2-l.stach@pengutronix.de --- include/linux/reservation.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/reservation.h b/include/linux/reservation.h index 2f0ffca35780..ee750765cc94 100644 --- a/include/linux/reservation.h +++ b/include/linux/reservation.h @@ -228,7 +228,8 @@ reservation_object_unlock(struct reservation_object *obj) * @obj: the reservation object * * Returns the exclusive fence (if any). Does NOT take a - * reference. The obj->lock must be held. + * reference. Writers must hold obj->lock, readers may only + * hold a RCU read side lock. * * RETURNS * The exclusive fence or NULL -- cgit v1.2.3 From 8a4b06d391b0a42a373808979b5028f5c84d9c6a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 18 Feb 2019 22:51:43 +0100 Subject: x86/speculation/mds: Add sysfs reporting for MDS Add the sysfs reporting file for MDS. It exposes the vulnerability and mitigation state similar to the existing files for the other speculative hardware vulnerabilities. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Borislav Petkov Reviewed-by: Jon Masters Tested-by: Jon Masters --- include/linux/cpu.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 5041357d0297..3c87ad888ed3 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -57,6 +57,8 @@ extern ssize_t cpu_show_spec_store_bypass(struct device *dev, struct device_attribute *attr, char *buf); extern ssize_t cpu_show_l1tf(struct device *dev, struct device_attribute *attr, char *buf); +extern ssize_t cpu_show_mds(struct device *dev, + struct device_attribute *attr, char *buf); extern __printf(4, 5) struct device *cpu_device_create(struct device *parent, void *drvdata, -- cgit v1.2.3 From 74b060d6845f09a5b2db6df653a3c0e90d4fa560 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 10 Mar 2019 23:06:09 +0800 Subject: regulator: palmas: Remove *rdev[PALMAS_NUM_REGS] from struct palmas_pmic This driver is using devm_regulator_register() so it is not necessary to save *rdev for clean up. Actually the pmic->rdev[id] is not used now. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- include/linux/mfd/palmas.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index 75e5c8ff85fc..c34d5f0d34d7 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -553,7 +553,6 @@ struct palmas_pmic { struct palmas *palmas; struct device *dev; struct regulator_desc desc[PALMAS_NUM_REGS]; - struct regulator_dev *rdev[PALMAS_NUM_REGS]; struct mutex mutex; int smps123; -- cgit v1.2.3 From e08abeca39673e1045ca1e5a90bd7fef69d0fe8f Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 27 Feb 2019 09:30:53 +0800 Subject: regulator: wm8400: Get rid of wm8400_block_read/wm8400_set_bits functions The only user of wm8400_block_read/wm8400_set_bits functions is the wm8400 regulator driver. At the context of all the callers, we can use regmap_bulk_read/regmap_update_bits directly. Thus remove wm8400_block_read/wm8400_set_bits functions. Signed-off-by: Axel Lin Acked-by: Charles Keepax Signed-off-by: Mark Brown --- include/linux/mfd/wm8400-private.h | 8 -------- 1 file changed, 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/wm8400-private.h b/include/linux/mfd/wm8400-private.h index 4ee908f5b834..43d0d307e2e3 100644 --- a/include/linux/mfd/wm8400-private.h +++ b/include/linux/mfd/wm8400-private.h @@ -923,12 +923,4 @@ struct wm8400 { #define WM8400_LINE_CMP_VTHD_SHIFT 0 /* LINE_CMP_VTHD - [3:0] */ #define WM8400_LINE_CMP_VTHD_WIDTH 4 /* LINE_CMP_VTHD - [3:0] */ -int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data); - -static inline int wm8400_set_bits(struct wm8400 *wm8400, u8 reg, - u16 mask, u16 val) -{ - return regmap_update_bits(wm8400->regmap, reg, mask, val); -} - #endif -- cgit v1.2.3 From eefffb42f6659c9510105f3e4ebf2a8499d56936 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 7 Mar 2019 16:54:21 +0100 Subject: spi: work around clang bug in SPI_BPW_RANGE_MASK() Clang-8 evaluates both sides of a ?: expression to check for valid arithmetic even in the side that is never taken. This results in a build warning: drivers/spi/spi-sh-msiof.c:1052:24: error: shift count >= width of type [-Werror,-Wshift-count-overflow] .bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 32), ^~~~~~~~~~~~~~~~~~~~~~~~~ Change the implementation to use the GENMASK() macro that does what we want here but does not have a problem with the shift count overflow. Link: https://bugs.llvm.org/show_bug.cgi?id=38789 Signed-off-by: Arnd Bergmann Signed-off-by: Mark Brown --- include/linux/spi/spi.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 662b336aa2e4..b27386450089 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -444,8 +444,7 @@ struct spi_controller { /* bitmask of supported bits_per_word for transfers */ u32 bits_per_word_mask; #define SPI_BPW_MASK(bits) BIT((bits) - 1) -#define SPI_BIT_MASK(bits) (((bits) == 32) ? ~0U : (BIT(bits) - 1)) -#define SPI_BPW_RANGE_MASK(min, max) (SPI_BIT_MASK(max) - SPI_BIT_MASK(min - 1)) +#define SPI_BPW_RANGE_MASK(min, max) GENMASK((min) - 1, (max) - 1) /* limits on transfer speed */ u32 min_speed_hz; -- cgit v1.2.3 From d48acfd0377f901f348b6c48bdcc03723f19d9e7 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 13 Mar 2019 00:33:56 +0800 Subject: regulator: wm831x-isink: Convert to use regulator_set/get_current_limit_regmap Use regulator_set/get_current_limit_regmap helpers to save some code. Signed-off-by: Axel Lin Acked-by: Charles Keepax Signed-off-by: Mark Brown --- include/linux/mfd/wm831x/regulator.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mfd/wm831x/regulator.h b/include/linux/mfd/wm831x/regulator.h index 955d30fc6a27..30c587a0624c 100644 --- a/include/linux/mfd/wm831x/regulator.h +++ b/include/linux/mfd/wm831x/regulator.h @@ -1213,6 +1213,6 @@ #define WM831X_LDO1_OK_WIDTH 1 /* LDO1_OK */ #define WM831X_ISINK_MAX_ISEL 55 -extern int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1]; +extern const unsigned int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1]; #endif -- cgit v1.2.3 From b239f7daf5530f562000bf55f02cc8028703f507 Mon Sep 17 00:00:00 2001 From: Dennis Zhou Date: Wed, 13 Feb 2019 11:10:30 -0800 Subject: percpu: set PCPU_BITMAP_BLOCK_SIZE to PAGE_SIZE Previously, block size was flexible based on the constraint that the GCD(PCPU_BITMAP_BLOCK_SIZE, PAGE_SIZE) > 1. However, this carried the overhead that keeping a floating number of populated free pages required scanning over the free regions of a chunk. Setting the block size to be fixed at PAGE_SIZE lets us know when an empty page becomes used as we will break a full contig_hint of a block. This means we no longer have to scan the whole chunk upon breaking a contig_hint which empty page management piggybacked off. A later patch takes advantage of this to optimize the allocation path by only scanning forward using the scan_hint introduced later too. Signed-off-by: Dennis Zhou Reviewed-by: Peng Fan --- include/linux/percpu.h | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 70b7123f38c7..9909dc0e273a 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -26,16 +26,10 @@ #define PCPU_MIN_ALLOC_SHIFT 2 #define PCPU_MIN_ALLOC_SIZE (1 << PCPU_MIN_ALLOC_SHIFT) -/* number of bits per page, used to trigger a scan if blocks are > PAGE_SIZE */ -#define PCPU_BITS_PER_PAGE (PAGE_SIZE >> PCPU_MIN_ALLOC_SHIFT) - /* - * This determines the size of each metadata block. There are several subtle - * constraints around this constant. The reserved region must be a multiple of - * PCPU_BITMAP_BLOCK_SIZE. Additionally, PCPU_BITMAP_BLOCK_SIZE must be a - * multiple of PAGE_SIZE or PAGE_SIZE must be a multiple of - * PCPU_BITMAP_BLOCK_SIZE to align with the populated page map. The unit_size - * also has to be a multiple of PCPU_BITMAP_BLOCK_SIZE to ensure full blocks. + * The PCPU_BITMAP_BLOCK_SIZE must be the same size as PAGE_SIZE as the + * updating of hints is used to manage the nr_empty_pop_pages in both + * the chunk and globally. */ #define PCPU_BITMAP_BLOCK_SIZE PAGE_SIZE #define PCPU_BITMAP_BLOCK_BITS (PCPU_BITMAP_BLOCK_SIZE >> \ -- cgit v1.2.3 From 6d85028134d3f4f946924e2f9f0aaff47d9de840 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 13 Mar 2019 22:00:34 +0100 Subject: spi: fix SPI_BPW_RANGE_MASK() regression Geert points out that I confused the min/max arguments that are reversed between SPI_BPW_RANGE_MASK() and GENMASK(). This time I have verified the result of the macro after fixing the arguments. Cc: Geert Uytterhoeven Fixes: eefffb42f665 ("spi: work around clang bug in SPI_BPW_RANGE_MASK()") Signed-off-by: Arnd Bergmann Reviewed-by: Geert Uytterhoeven Signed-off-by: Mark Brown --- include/linux/spi/spi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index b27386450089..a0975cf76cf6 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -444,7 +444,7 @@ struct spi_controller { /* bitmask of supported bits_per_word for transfers */ u32 bits_per_word_mask; #define SPI_BPW_MASK(bits) BIT((bits) - 1) -#define SPI_BPW_RANGE_MASK(min, max) GENMASK((min) - 1, (max) - 1) +#define SPI_BPW_RANGE_MASK(min, max) GENMASK((max) - 1, (min) - 1) /* limits on transfer speed */ u32 min_speed_hz; -- cgit v1.2.3 From 3d0313786470acb414b7d5fdd2202f061acffb02 Mon Sep 17 00:00:00 2001 From: Rajan Vaja Date: Mon, 4 Mar 2019 15:18:08 -0800 Subject: drivers: Defer probe if firmware is not ready Driver needs ZynqMP firmware interface to call EEMI APIs. In case firmware is not ready, dependent drivers should wait until the firmware is ready. Signed-off-by: Rajan Vaja Signed-off-by: Jolly Shah Signed-off-by: Michal Simek --- include/linux/firmware/xlnx-zynqmp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index 642dab10f65d..3533ee557043 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -293,7 +293,7 @@ const struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void); #else static inline struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void) { - return NULL; + return ERR_PTR(-ENODEV); } #endif -- cgit v1.2.3 From 7ab2184246bd0b32e427ff60bfa07a2435011ce2 Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Mon, 18 Mar 2019 12:14:20 -0700 Subject: HID: intel-ish-hid: Hide members of struct ishtp_cl_device ISH clients don't need to access any field of struct ishtp_cl_device. To avoid this create an interface functions instead where it is required. In the case of ishtp_cl_allocate(), modify the parameters so that the clients don't have to dereference. Clients can also use tracing, here a new interface is added to get the common trace function pointer, instead of direct call. The new interface functions defined in one external header file, named intel-ish-client-if.h. This is the only header files all ISHTP clients must include. Signed-off-by: Srinivas Pandruvada Signed-off-by: Jiri Kosina --- include/linux/intel-ish-client-if.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 include/linux/intel-ish-client-if.h (limited to 'include/linux') diff --git a/include/linux/intel-ish-client-if.h b/include/linux/intel-ish-client-if.h new file mode 100644 index 000000000000..11e285172735 --- /dev/null +++ b/include/linux/intel-ish-client-if.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Intel ISH client Interface definitions + * + * Copyright (c) 2019, Intel Corporation. + */ + +#ifndef _INTEL_ISH_CLIENT_IF_H_ +#define _INTEL_ISH_CLIENT_IF_H_ + +struct ishtp_cl_device; + +/* Get the device * from ishtp device instance */ +struct device *ishtp_device(struct ishtp_cl_device *cl_device); +/* Trace interface for clients */ +void *ishtp_trace_callback(struct ishtp_cl_device *cl_device); + +#endif /* _INTEL_ISH_CLIENT_IF_H_ */ -- cgit v1.2.3 From e00a864f976ab2646929ae82aa65ccd05a4f7539 Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Mon, 18 Mar 2019 12:14:22 -0700 Subject: HID: intel-ish-hid: Move driver registry functions Move the driver registry with the ishtp bus to the common interface file, which clients can include. Also rename __ishtp_cl_driver_register() to ishtp_cl_driver_register() and removed define for ishtp_cl_driver_register. Signed-off-by: Srinivas Pandruvada Signed-off-by: Jiri Kosina --- include/linux/intel-ish-client-if.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'include/linux') diff --git a/include/linux/intel-ish-client-if.h b/include/linux/intel-ish-client-if.h index 11e285172735..abc0b8122f07 100644 --- a/include/linux/intel-ish-client-if.h +++ b/include/linux/intel-ish-client-if.h @@ -10,6 +10,31 @@ struct ishtp_cl_device; +/** + * struct ishtp_cl_device - ISHTP device handle + * @driver: driver instance on a bus + * @name: Name of the device for probe + * @probe: driver callback for device probe + * @remove: driver callback on device removal + * + * Client drivers defines to get probed/removed for ISHTP client device. + */ +struct ishtp_cl_driver { + struct device_driver driver; + const char *name; + const guid_t *guid; + int (*probe)(struct ishtp_cl_device *dev); + int (*remove)(struct ishtp_cl_device *dev); + int (*reset)(struct ishtp_cl_device *dev); + const struct dev_pm_ops *pm; +}; + +int ishtp_cl_driver_register(struct ishtp_cl_driver *driver, + struct module *owner); +void ishtp_cl_driver_unregister(struct ishtp_cl_driver *driver); +int ishtp_register_event_cb(struct ishtp_cl_device *device, + void (*read_cb)(struct ishtp_cl_device *)); + /* Get the device * from ishtp device instance */ struct device *ishtp_device(struct ishtp_cl_device *cl_device); /* Trace interface for clients */ -- cgit v1.2.3 From 8991eb309e1faa04ce1ca950d89dd36e3c8584cd Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Mon, 18 Mar 2019 12:14:24 -0700 Subject: HID: intel-ish-hid: Move the common functions from client.h Move the interface functions in client.h to common include. These are already abstracted well to use as is. Also move any associated structures used by these functions. Signed-off-by: Srinivas Pandruvada Signed-off-by: Jiri Kosina --- include/linux/intel-ish-client-if.h | 48 +++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) (limited to 'include/linux') diff --git a/include/linux/intel-ish-client-if.h b/include/linux/intel-ish-client-if.h index abc0b8122f07..7ce172f656f8 100644 --- a/include/linux/intel-ish-client-if.h +++ b/include/linux/intel-ish-client-if.h @@ -9,6 +9,16 @@ #define _INTEL_ISH_CLIENT_IF_H_ struct ishtp_cl_device; +struct ishtp_cl; + +/* Client state */ +enum cl_state { + ISHTP_CL_INITIALIZING = 0, + ISHTP_CL_CONNECTING, + ISHTP_CL_CONNECTED, + ISHTP_CL_DISCONNECTING, + ISHTP_CL_DISCONNECTED +}; /** * struct ishtp_cl_device - ISHTP device handle @@ -29,6 +39,32 @@ struct ishtp_cl_driver { const struct dev_pm_ops *pm; }; +/** + * struct ishtp_msg_data - ISHTP message data struct + * @size: Size of data in the *data + * @data: Pointer to data + */ +struct ishtp_msg_data { + uint32_t size; + unsigned char *data; +}; + +/* + * struct ishtp_cl_rb - request block structure + * @list: Link to list members + * @cl: ISHTP client instance + * @buffer: message header + * @buf_idx: Index into buffer + * @read_time: unused at this time + */ +struct ishtp_cl_rb { + struct list_head list; + struct ishtp_cl *cl; + struct ishtp_msg_data buffer; + unsigned long buf_idx; + unsigned long read_time; +}; + int ishtp_cl_driver_register(struct ishtp_cl_driver *driver, struct module *owner); void ishtp_cl_driver_unregister(struct ishtp_cl_driver *driver); @@ -40,4 +76,16 @@ struct device *ishtp_device(struct ishtp_cl_device *cl_device); /* Trace interface for clients */ void *ishtp_trace_callback(struct ishtp_cl_device *cl_device); +struct ishtp_cl *ishtp_cl_allocate(struct ishtp_cl_device *cl_device); +void ishtp_cl_free(struct ishtp_cl *cl); +int ishtp_cl_link(struct ishtp_cl *cl); +void ishtp_cl_unlink(struct ishtp_cl *cl); +int ishtp_cl_disconnect(struct ishtp_cl *cl); +int ishtp_cl_connect(struct ishtp_cl *cl); +int ishtp_cl_send(struct ishtp_cl *cl, uint8_t *buf, size_t length); +int ishtp_cl_flush_queues(struct ishtp_cl *cl); +int ishtp_cl_io_rb_recycle(struct ishtp_cl_rb *rb); +bool ishtp_cl_tx_empty(struct ishtp_cl *cl); +struct ishtp_cl_rb *ishtp_cl_rx_get_rb(struct ishtp_cl *cl); + #endif /* _INTEL_ISH_CLIENT_IF_H_ */ -- cgit v1.2.3 From 51cbc7079ecae545be93c137edeb7453d28b9ec9 Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Mon, 18 Mar 2019 12:14:25 -0700 Subject: HID: intel-ish-hid: Add interface functions for struct ishtp_cl Instead of directly accessing members of struct ishtp_cl, create interface functions to access them. Signed-off-by: Srinivas Pandruvada Signed-off-by: Jiri Kosina --- include/linux/intel-ish-client-if.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/intel-ish-client-if.h b/include/linux/intel-ish-client-if.h index 7ce172f656f8..526e3048e09f 100644 --- a/include/linux/intel-ish-client-if.h +++ b/include/linux/intel-ish-client-if.h @@ -87,5 +87,12 @@ int ishtp_cl_flush_queues(struct ishtp_cl *cl); int ishtp_cl_io_rb_recycle(struct ishtp_cl_rb *rb); bool ishtp_cl_tx_empty(struct ishtp_cl *cl); struct ishtp_cl_rb *ishtp_cl_rx_get_rb(struct ishtp_cl *cl); +void *ishtp_get_client_data(struct ishtp_cl *cl); +void ishtp_set_client_data(struct ishtp_cl *cl, void *data); +struct ishtp_device *ishtp_get_ishtp_device(struct ishtp_cl *cl); +void ishtp_set_tx_ring_size(struct ishtp_cl *cl, int size); +void ishtp_set_rx_ring_size(struct ishtp_cl *cl, int size); +void ishtp_set_connection_state(struct ishtp_cl *cl, int state); +void ishtp_cl_set_fw_client_id(struct ishtp_cl *cl, int fw_client_id); #endif /* _INTEL_ISH_CLIENT_IF_H_ */ -- cgit v1.2.3 From 5f7224cf418511b9d3c40d35b098d15f9e4e7404 Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Mon, 18 Mar 2019 12:14:26 -0700 Subject: HID: intel-ish-hid: Move functions related to bus and device Move function idefinitions related to bus and device to common header file. Also create new function to get fw client id and move ish_hw_reset() from inline to exported function. Signed-off-by: Srinivas Pandruvada Signed-off-by: Jiri Kosina --- include/linux/intel-ish-client-if.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/linux') diff --git a/include/linux/intel-ish-client-if.h b/include/linux/intel-ish-client-if.h index 526e3048e09f..e98bfbb1e07e 100644 --- a/include/linux/intel-ish-client-if.h +++ b/include/linux/intel-ish-client-if.h @@ -9,7 +9,9 @@ #define _INTEL_ISH_CLIENT_IF_H_ struct ishtp_cl_device; +struct ishtp_device; struct ishtp_cl; +struct ishtp_fw_client; /* Client state */ enum cl_state { @@ -95,4 +97,14 @@ void ishtp_set_rx_ring_size(struct ishtp_cl *cl, int size); void ishtp_set_connection_state(struct ishtp_cl *cl, int state); void ishtp_cl_set_fw_client_id(struct ishtp_cl *cl, int fw_client_id); +void ishtp_put_device(struct ishtp_cl_device *cl_dev); +void ishtp_get_device(struct ishtp_cl_device *cl_dev); +void ishtp_set_drvdata(struct ishtp_cl_device *cl_device, void *data); +void *ishtp_get_drvdata(struct ishtp_cl_device *cl_device); +int ishtp_register_event_cb(struct ishtp_cl_device *device, + void (*read_cb)(struct ishtp_cl_device *)); +struct ishtp_fw_client *ishtp_fw_cl_get_client(struct ishtp_device *dev, + const guid_t *uuid); +int ishtp_get_fw_client_id(struct ishtp_fw_client *fw_client); +int ish_hw_reset(struct ishtp_device *dev); #endif /* _INTEL_ISH_CLIENT_IF_H_ */ -- cgit v1.2.3 From 0e568a16af403263f8e421f1f10b91f9f15b52c3 Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Mon, 18 Mar 2019 12:14:28 -0700 Subject: HID: intel-ish-hid: Add interface function for PCI device pointer Instead of directly accessing PCI device poitner via struct ishtp_cl, create interface function for same. This is required for DMA transfer. Signed-off-by: Srinivas Pandruvada Signed-off-by: Jiri Kosina --- include/linux/intel-ish-client-if.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/intel-ish-client-if.h b/include/linux/intel-ish-client-if.h index e98bfbb1e07e..16255c2ca2f4 100644 --- a/include/linux/intel-ish-client-if.h +++ b/include/linux/intel-ish-client-if.h @@ -77,6 +77,8 @@ int ishtp_register_event_cb(struct ishtp_cl_device *device, struct device *ishtp_device(struct ishtp_cl_device *cl_device); /* Trace interface for clients */ void *ishtp_trace_callback(struct ishtp_cl_device *cl_device); +/* Get device pointer of PCI device for DMA acces */ +struct device *ishtp_get_pci_device(struct ishtp_cl_device *cl_device); struct ishtp_cl *ishtp_cl_allocate(struct ishtp_cl_device *cl_device); void ishtp_cl_free(struct ishtp_cl *cl); -- cgit v1.2.3 From 8e6b85945155da5af95dc0fa58ae38b86428deea Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Fri, 1 Mar 2019 18:22:38 +0100 Subject: USB: usb.h: tweak struct urb to remove wasted space By moving one field around in 'struct urb' we reduce the size of the structure by 8 bytes. Before the patch on x86_64 the overall size of the structure as reported by pahole was: /* size: 192, cachelines: 3, members: 30 */ /* sum members: 184, holes: 2, sum holes: 8 */ After the patch we now have: /* size: 184, cachelines: 3, members: 30 */ /* last cacheline: 56 bytes */ Signed-off-by: Greg Kroah-Hartman --- include/linux/usb.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/usb.h b/include/linux/usb.h index 5e49e82c4368..4229eb74bd2c 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1545,10 +1545,10 @@ typedef void (*usb_complete_t)(struct urb *); struct urb { /* private: usb core and host controller only fields in the urb */ struct kref kref; /* reference count of the URB */ + int unlinked; /* unlink error code */ void *hcpriv; /* private data for host controller */ atomic_t use_count; /* concurrent submissions counter */ atomic_t reject; /* submissions will fail */ - int unlinked; /* unlink error code */ /* public: documented fields in the urb that can be used by drivers */ struct list_head urb_list; /* list head for use by the urb's -- cgit v1.2.3 From c84b0326d5e4fe08d493f6fff245da2ad473f4ae Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Thu, 21 Feb 2019 16:25:53 +0100 Subject: reset: add acquired/released state for exclusive reset controls There are cases where a driver needs explicit control over a reset line that is exclusively conneted to its device, but this control has to be temporarily handed over to the power domain controller to handle reset requirements during power transitions. Allow multiple exclusive reset controls to be requested in 'released' state for the same physical reset line, only one of which can be acquired at the same time. Signed-off-by: Philipp Zabel Signed-off-by: Thierry Reding --- include/linux/reset.h | 93 ++++++++++++++++++++++++++++++++++++++++----------- 1 file changed, 73 insertions(+), 20 deletions(-) (limited to 'include/linux') diff --git a/include/linux/reset.h b/include/linux/reset.h index c1901b61ca30..ea9a8a1ce4b1 100644 --- a/include/linux/reset.h +++ b/include/linux/reset.h @@ -14,18 +14,20 @@ int reset_control_reset(struct reset_control *rstc); int reset_control_assert(struct reset_control *rstc); int reset_control_deassert(struct reset_control *rstc); int reset_control_status(struct reset_control *rstc); +int reset_control_acquire(struct reset_control *rstc); +void reset_control_release(struct reset_control *rstc); struct reset_control *__of_reset_control_get(struct device_node *node, const char *id, int index, bool shared, - bool optional); + bool optional, bool acquired); struct reset_control *__reset_control_get(struct device *dev, const char *id, int index, bool shared, - bool optional); + bool optional, bool acquired); void reset_control_put(struct reset_control *rstc); int __device_reset(struct device *dev, bool optional); struct reset_control *__devm_reset_control_get(struct device *dev, const char *id, int index, bool shared, - bool optional); + bool optional, bool acquired); struct reset_control *devm_reset_control_array_get(struct device *dev, bool shared, bool optional); @@ -56,6 +58,15 @@ static inline int reset_control_status(struct reset_control *rstc) return 0; } +static inline int reset_control_acquire(struct reset_control *rstc) +{ + return 0; +} + +static inline void reset_control_release(struct reset_control *rstc) +{ +} + static inline void reset_control_put(struct reset_control *rstc) { } @@ -68,21 +79,23 @@ static inline int __device_reset(struct device *dev, bool optional) static inline struct reset_control *__of_reset_control_get( struct device_node *node, const char *id, int index, bool shared, - bool optional) + bool optional, bool acquired) { return optional ? NULL : ERR_PTR(-ENOTSUPP); } static inline struct reset_control *__reset_control_get( struct device *dev, const char *id, - int index, bool shared, bool optional) + int index, bool shared, bool optional, + bool acquired) { return optional ? NULL : ERR_PTR(-ENOTSUPP); } static inline struct reset_control *__devm_reset_control_get( struct device *dev, const char *id, - int index, bool shared, bool optional) + int index, bool shared, bool optional, + bool acquired) { return optional ? NULL : ERR_PTR(-ENOTSUPP); } @@ -134,7 +147,28 @@ static inline int device_reset_optional(struct device *dev) static inline struct reset_control * __must_check reset_control_get_exclusive(struct device *dev, const char *id) { - return __reset_control_get(dev, id, 0, false, false); + return __reset_control_get(dev, id, 0, false, false, true); +} + +/** + * reset_control_get_exclusive_released - Lookup and obtain a temoprarily + * exclusive reference to a reset + * controller. + * @dev: device to be reset by the controller + * @id: reset line name + * + * Returns a struct reset_control or IS_ERR() condition containing errno. + * reset-controls returned by this function must be acquired via + * reset_control_acquire() before they can be used and should be released + * via reset_control_release() afterwards. + * + * Use of id names is optional. + */ +static inline struct reset_control * +__must_check reset_control_get_exclusive_released(struct device *dev, + const char *id) +{ + return __reset_control_get(dev, id, 0, false, false, false); } /** @@ -162,19 +196,19 @@ __must_check reset_control_get_exclusive(struct device *dev, const char *id) static inline struct reset_control *reset_control_get_shared( struct device *dev, const char *id) { - return __reset_control_get(dev, id, 0, true, false); + return __reset_control_get(dev, id, 0, true, false, false); } static inline struct reset_control *reset_control_get_optional_exclusive( struct device *dev, const char *id) { - return __reset_control_get(dev, id, 0, false, true); + return __reset_control_get(dev, id, 0, false, true, true); } static inline struct reset_control *reset_control_get_optional_shared( struct device *dev, const char *id) { - return __reset_control_get(dev, id, 0, true, true); + return __reset_control_get(dev, id, 0, true, true, false); } /** @@ -190,7 +224,7 @@ static inline struct reset_control *reset_control_get_optional_shared( static inline struct reset_control *of_reset_control_get_exclusive( struct device_node *node, const char *id) { - return __of_reset_control_get(node, id, 0, false, false); + return __of_reset_control_get(node, id, 0, false, false, true); } /** @@ -215,7 +249,7 @@ static inline struct reset_control *of_reset_control_get_exclusive( static inline struct reset_control *of_reset_control_get_shared( struct device_node *node, const char *id) { - return __of_reset_control_get(node, id, 0, true, false); + return __of_reset_control_get(node, id, 0, true, false, false); } /** @@ -232,7 +266,7 @@ static inline struct reset_control *of_reset_control_get_shared( static inline struct reset_control *of_reset_control_get_exclusive_by_index( struct device_node *node, int index) { - return __of_reset_control_get(node, NULL, index, false, false); + return __of_reset_control_get(node, NULL, index, false, false, true); } /** @@ -260,7 +294,7 @@ static inline struct reset_control *of_reset_control_get_exclusive_by_index( static inline struct reset_control *of_reset_control_get_shared_by_index( struct device_node *node, int index) { - return __of_reset_control_get(node, NULL, index, true, false); + return __of_reset_control_get(node, NULL, index, true, false, false); } /** @@ -279,7 +313,26 @@ static inline struct reset_control * __must_check devm_reset_control_get_exclusive(struct device *dev, const char *id) { - return __devm_reset_control_get(dev, id, 0, false, false); + return __devm_reset_control_get(dev, id, 0, false, false, true); +} + +/** + * devm_reset_control_get_exclusive_released - resource managed + * reset_control_get_exclusive_released() + * @dev: device to be reset by the controller + * @id: reset line name + * + * Managed reset_control_get_exclusive_released(). For reset controllers + * returned from this function, reset_control_put() is called automatically on + * driver detach. + * + * See reset_control_get_exclusive_released() for more information. + */ +static inline struct reset_control * +__must_check devm_reset_control_get_exclusive_released(struct device *dev, + const char *id) +{ + return __devm_reset_control_get(dev, id, 0, false, false, false); } /** @@ -294,19 +347,19 @@ __must_check devm_reset_control_get_exclusive(struct device *dev, static inline struct reset_control *devm_reset_control_get_shared( struct device *dev, const char *id) { - return __devm_reset_control_get(dev, id, 0, true, false); + return __devm_reset_control_get(dev, id, 0, true, false, false); } static inline struct reset_control *devm_reset_control_get_optional_exclusive( struct device *dev, const char *id) { - return __devm_reset_control_get(dev, id, 0, false, true); + return __devm_reset_control_get(dev, id, 0, false, true, true); } static inline struct reset_control *devm_reset_control_get_optional_shared( struct device *dev, const char *id) { - return __devm_reset_control_get(dev, id, 0, true, true); + return __devm_reset_control_get(dev, id, 0, true, true, false); } /** @@ -324,7 +377,7 @@ static inline struct reset_control *devm_reset_control_get_optional_shared( static inline struct reset_control * devm_reset_control_get_exclusive_by_index(struct device *dev, int index) { - return __devm_reset_control_get(dev, NULL, index, false, false); + return __devm_reset_control_get(dev, NULL, index, false, false, true); } /** @@ -340,7 +393,7 @@ devm_reset_control_get_exclusive_by_index(struct device *dev, int index) static inline struct reset_control * devm_reset_control_get_shared_by_index(struct device *dev, int index) { - return __devm_reset_control_get(dev, NULL, index, true, false); + return __devm_reset_control_get(dev, NULL, index, true, false, false); } /* -- cgit v1.2.3 From f31d5c24fb2ea6fcfa4d300886eb87b662fbc0da Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Thu, 21 Feb 2019 16:25:54 +0100 Subject: reset: Add acquired flag to of_reset_control_array_get() In order to be able to request an array of reset controls in acquired or released mode, add the acquired flag to of_reset_control_array_get() and pass the flag to subsequent calls of __of_reset_control_get(). Signed-off-by: Thierry Reding Acked-by: Felipe Balbi Signed-off-by: Philipp Zabel --- include/linux/reset.h | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/reset.h b/include/linux/reset.h index ea9a8a1ce4b1..a01b32bf51d4 100644 --- a/include/linux/reset.h +++ b/include/linux/reset.h @@ -32,7 +32,8 @@ struct reset_control *__devm_reset_control_get(struct device *dev, struct reset_control *devm_reset_control_array_get(struct device *dev, bool shared, bool optional); struct reset_control *of_reset_control_array_get(struct device_node *np, - bool shared, bool optional); + bool shared, bool optional, + bool acquired); int reset_control_get_count(struct device *dev); @@ -107,7 +108,8 @@ devm_reset_control_array_get(struct device *dev, bool shared, bool optional) } static inline struct reset_control * -of_reset_control_array_get(struct device_node *np, bool shared, bool optional) +of_reset_control_array_get(struct device_node *np, bool shared, bool optional, + bool acquired) { return optional ? NULL : ERR_PTR(-ENOTSUPP); } @@ -465,24 +467,24 @@ devm_reset_control_array_get_optional_shared(struct device *dev) static inline struct reset_control * of_reset_control_array_get_exclusive(struct device_node *node) { - return of_reset_control_array_get(node, false, false); + return of_reset_control_array_get(node, false, false, true); } static inline struct reset_control * of_reset_control_array_get_shared(struct device_node *node) { - return of_reset_control_array_get(node, true, false); + return of_reset_control_array_get(node, true, false, true); } static inline struct reset_control * of_reset_control_array_get_optional_exclusive(struct device_node *node) { - return of_reset_control_array_get(node, false, true); + return of_reset_control_array_get(node, false, true, true); } static inline struct reset_control * of_reset_control_array_get_optional_shared(struct device_node *node) { - return of_reset_control_array_get(node, true, true); + return of_reset_control_array_get(node, true, true, true); } #endif -- cgit v1.2.3 From 22815f1825e4c50314e7084ca375f7368704fdd4 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Thu, 21 Feb 2019 16:25:55 +0100 Subject: reset: Add acquire/release support for arrays Add implementations that apply acquire and release operations to all reset controls part of a reset control array. Signed-off-by: Thierry Reding Reviewed-by: Philipp Zabel Signed-off-by: Philipp Zabel --- include/linux/reset.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/reset.h b/include/linux/reset.h index a01b32bf51d4..95d555c2130a 100644 --- a/include/linux/reset.h +++ b/include/linux/reset.h @@ -470,6 +470,12 @@ of_reset_control_array_get_exclusive(struct device_node *node) return of_reset_control_array_get(node, false, false, true); } +static inline struct reset_control * +of_reset_control_array_get_exclusive_released(struct device_node *node) +{ + return of_reset_control_array_get(node, false, false, false); +} + static inline struct reset_control * of_reset_control_array_get_shared(struct device_node *node) { -- cgit v1.2.3 From 347ab9480313737c0f1aaa08e8f2e1a791235535 Mon Sep 17 00:00:00 2001 From: Phong Hoang Date: Tue, 19 Mar 2019 19:40:08 +0900 Subject: pwm: Fix deadlock warning when removing PWM device MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch fixes deadlock warning if removing PWM device when CONFIG_PROVE_LOCKING is enabled. This issue can be reproceduced by the following steps on the R-Car H3 Salvator-X board if the backlight is disabled: # cd /sys/class/pwm/pwmchip0 # echo 0 > export # ls device export npwm power pwm0 subsystem uevent unexport # cd device/driver # ls bind e6e31000.pwm uevent unbind # echo e6e31000.pwm > unbind [ 87.659974] ====================================================== [ 87.666149] WARNING: possible circular locking dependency detected [ 87.672327] 5.0.0 #7 Not tainted [ 87.675549] ------------------------------------------------------ [ 87.681723] bash/2986 is trying to acquire lock: [ 87.686337] 000000005ea0e178 (kn->count#58){++++}, at: kernfs_remove_by_name_ns+0x50/0xa0 [ 87.694528] [ 87.694528] but task is already holding lock: [ 87.700353] 000000006313b17c (pwm_lock){+.+.}, at: pwmchip_remove+0x28/0x13c [ 87.707405] [ 87.707405] which lock already depends on the new lock. [ 87.707405] [ 87.715574] [ 87.715574] the existing dependency chain (in reverse order) is: [ 87.723048] [ 87.723048] -> #1 (pwm_lock){+.+.}: [ 87.728017] __mutex_lock+0x70/0x7e4 [ 87.732108] mutex_lock_nested+0x1c/0x24 [ 87.736547] pwm_request_from_chip.part.6+0x34/0x74 [ 87.741940] pwm_request_from_chip+0x20/0x40 [ 87.746725] export_store+0x6c/0x1f4 [ 87.750820] dev_attr_store+0x18/0x28 [ 87.754998] sysfs_kf_write+0x54/0x64 [ 87.759175] kernfs_fop_write+0xe4/0x1e8 [ 87.763615] __vfs_write+0x40/0x184 [ 87.767619] vfs_write+0xa8/0x19c [ 87.771448] ksys_write+0x58/0xbc [ 87.775278] __arm64_sys_write+0x18/0x20 [ 87.779721] el0_svc_common+0xd0/0x124 [ 87.783986] el0_svc_compat_handler+0x1c/0x24 [ 87.788858] el0_svc_compat+0x8/0x18 [ 87.792947] [ 87.792947] -> #0 (kn->count#58){++++}: [ 87.798260] lock_acquire+0xc4/0x22c [ 87.802353] __kernfs_remove+0x258/0x2c4 [ 87.806790] kernfs_remove_by_name_ns+0x50/0xa0 [ 87.811836] remove_files.isra.1+0x38/0x78 [ 87.816447] sysfs_remove_group+0x48/0x98 [ 87.820971] sysfs_remove_groups+0x34/0x4c [ 87.825583] device_remove_attrs+0x6c/0x7c [ 87.830197] device_del+0x11c/0x33c [ 87.834201] device_unregister+0x14/0x2c [ 87.838638] pwmchip_sysfs_unexport+0x40/0x4c [ 87.843509] pwmchip_remove+0xf4/0x13c [ 87.847773] rcar_pwm_remove+0x28/0x34 [ 87.852039] platform_drv_remove+0x24/0x64 [ 87.856651] device_release_driver_internal+0x18c/0x21c [ 87.862391] device_release_driver+0x14/0x1c [ 87.867175] unbind_store+0xe0/0x124 [ 87.871265] drv_attr_store+0x20/0x30 [ 87.875442] sysfs_kf_write+0x54/0x64 [ 87.879618] kernfs_fop_write+0xe4/0x1e8 [ 87.884055] __vfs_write+0x40/0x184 [ 87.888057] vfs_write+0xa8/0x19c [ 87.891887] ksys_write+0x58/0xbc [ 87.895716] __arm64_sys_write+0x18/0x20 [ 87.900154] el0_svc_common+0xd0/0x124 [ 87.904417] el0_svc_compat_handler+0x1c/0x24 [ 87.909289] el0_svc_compat+0x8/0x18 [ 87.913378] [ 87.913378] other info that might help us debug this: [ 87.913378] [ 87.921374] Possible unsafe locking scenario: [ 87.921374] [ 87.927286] CPU0 CPU1 [ 87.931808] ---- ---- [ 87.936331] lock(pwm_lock); [ 87.939293] lock(kn->count#58); [ 87.945120] lock(pwm_lock); [ 87.950599] lock(kn->count#58); [ 87.953908] [ 87.953908] *** DEADLOCK *** [ 87.953908] [ 87.959821] 4 locks held by bash/2986: [ 87.963563] #0: 00000000ace7bc30 (sb_writers#6){.+.+}, at: vfs_write+0x188/0x19c [ 87.971044] #1: 00000000287991b2 (&of->mutex){+.+.}, at: kernfs_fop_write+0xb4/0x1e8 [ 87.978872] #2: 00000000f739d016 (&dev->mutex){....}, at: device_release_driver_internal+0x40/0x21c [ 87.988001] #3: 000000006313b17c (pwm_lock){+.+.}, at: pwmchip_remove+0x28/0x13c [ 87.995481] [ 87.995481] stack backtrace: [ 87.999836] CPU: 0 PID: 2986 Comm: bash Not tainted 5.0.0 #7 [ 88.005489] Hardware name: Renesas Salvator-X board based on r8a7795 ES1.x (DT) [ 88.012791] Call trace: [ 88.015235] dump_backtrace+0x0/0x190 [ 88.018891] show_stack+0x14/0x1c [ 88.022204] dump_stack+0xb0/0xec [ 88.025514] print_circular_bug.isra.32+0x1d0/0x2e0 [ 88.030385] __lock_acquire+0x1318/0x1864 [ 88.034388] lock_acquire+0xc4/0x22c [ 88.037958] __kernfs_remove+0x258/0x2c4 [ 88.041874] kernfs_remove_by_name_ns+0x50/0xa0 [ 88.046398] remove_files.isra.1+0x38/0x78 [ 88.050487] sysfs_remove_group+0x48/0x98 [ 88.054490] sysfs_remove_groups+0x34/0x4c [ 88.058580] device_remove_attrs+0x6c/0x7c [ 88.062671] device_del+0x11c/0x33c [ 88.066154] device_unregister+0x14/0x2c [ 88.070070] pwmchip_sysfs_unexport+0x40/0x4c [ 88.074421] pwmchip_remove+0xf4/0x13c [ 88.078163] rcar_pwm_remove+0x28/0x34 [ 88.081906] platform_drv_remove+0x24/0x64 [ 88.085996] device_release_driver_internal+0x18c/0x21c [ 88.091215] device_release_driver+0x14/0x1c [ 88.095478] unbind_store+0xe0/0x124 [ 88.099048] drv_attr_store+0x20/0x30 [ 88.102704] sysfs_kf_write+0x54/0x64 [ 88.106359] kernfs_fop_write+0xe4/0x1e8 [ 88.110275] __vfs_write+0x40/0x184 [ 88.113757] vfs_write+0xa8/0x19c [ 88.117065] ksys_write+0x58/0xbc [ 88.120374] __arm64_sys_write+0x18/0x20 [ 88.124291] el0_svc_common+0xd0/0x124 [ 88.128034] el0_svc_compat_handler+0x1c/0x24 [ 88.132384] el0_svc_compat+0x8/0x18 The sysfs unexport in pwmchip_remove() is completely asymmetric to what we do in pwmchip_add_with_polarity() and commit 0733424c9ba9 ("pwm: Unexport children before chip removal") is a strong indication that this was wrong to begin with. We should just move pwmchip_sysfs_unexport() where it belongs, which is right after pwmchip_sysfs_unexport_children(). In that case, we do not need separate functions anymore either. We also really want to remove sysfs irrespective of whether or not the chip will be removed as a result of pwmchip_remove(). We can only assume that the driver will be gone after that, so we shouldn't leave any dangling sysfs files around. This warning disappears if we move pwmchip_sysfs_unexport() to the top of pwmchip_remove(), pwmchip_sysfs_unexport_children(). That way it is also outside of the pwm_lock section, which indeed doesn't seem to be needed. Moving the pwmchip_sysfs_export() call outside of that section also seems fine and it'd be perfectly symmetric with pwmchip_remove() again. So, this patch fixes them. Signed-off-by: Phong Hoang [shimoda: revise the commit log and code] Fixes: 76abbdde2d95 ("pwm: Add sysfs interface") Fixes: 0733424c9ba9 ("pwm: Unexport children before chip removal") Signed-off-by: Yoshihiro Shimoda Tested-by: Hoan Nguyen An Reviewed-by: Geert Uytterhoeven Reviewed-by: Simon Horman Reviewed-by: Uwe Kleine-König Signed-off-by: Thierry Reding --- include/linux/pwm.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pwm.h b/include/linux/pwm.h index b628abfffacc..eaa5c6e3fc9f 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -596,7 +596,6 @@ static inline void pwm_remove_table(struct pwm_lookup *table, size_t num) #ifdef CONFIG_PWM_SYSFS void pwmchip_sysfs_export(struct pwm_chip *chip); void pwmchip_sysfs_unexport(struct pwm_chip *chip); -void pwmchip_sysfs_unexport_children(struct pwm_chip *chip); #else static inline void pwmchip_sysfs_export(struct pwm_chip *chip) { @@ -605,10 +604,6 @@ static inline void pwmchip_sysfs_export(struct pwm_chip *chip) static inline void pwmchip_sysfs_unexport(struct pwm_chip *chip) { } - -static inline void pwmchip_sysfs_unexport_children(struct pwm_chip *chip) -{ -} #endif /* CONFIG_PWM_SYSFS */ #endif /* __LINUX_PWM_H */ -- cgit v1.2.3 From 37821a82e6789eaaa81dd32a67edc3511ebfd5aa Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 19 Mar 2019 17:48:42 +0200 Subject: spi: pxa2xx: Introduce DMA burst size support Some masters may have different DMA burst size than hard coded default. In such case respect the value given by DMA burst size provided via platform data. Signed-off-by: Andy Shevchenko Tested-by: Jarkko Nikula Reviewed-by: Jarkko Nikula Signed-off-by: Mark Brown --- include/linux/spi/pxa2xx_spi.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/spi/pxa2xx_spi.h b/include/linux/spi/pxa2xx_spi.h index c1c59473cef9..6005f0126631 100644 --- a/include/linux/spi/pxa2xx_spi.h +++ b/include/linux/spi/pxa2xx_spi.h @@ -25,6 +25,7 @@ struct dma_chan; struct pxa2xx_spi_controller { u16 num_chipselect; u8 enable_dma; + u8 dma_burst_size; bool is_slave; /* DMA engine specific config */ -- cgit v1.2.3 From 4bd97d51a5e602ea1fbdab8c2d653513dea17115 Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Wed, 20 Mar 2019 11:02:04 +0100 Subject: net: dev: rename queue selection helpers. With the following patches, we are going to use __netdev_pick_tx() in many modules. Rename it to netdev_pick_tx(), to make it clear is a public API. Also rename the existing netdev_pick_tx() to netdev_core_pick_tx(), to avoid name clashes. Suggested-by: Eric Dumazet Suggested-by: David Miller Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller --- include/linux/netdevice.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 26f69cf763f4..57cd2bdd9f78 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2152,9 +2152,9 @@ static inline void netdev_for_each_tx_queue(struct net_device *dev, &qdisc_xmit_lock_key); \ } -struct netdev_queue *netdev_pick_tx(struct net_device *dev, - struct sk_buff *skb, - struct net_device *sb_dev); +struct netdev_queue *netdev_core_pick_tx(struct net_device *dev, + struct sk_buff *skb, + struct net_device *sb_dev); /* returns the headroom that the master device needs to take in account * when forwarding to this dev -- cgit v1.2.3 From b71b5837f8711dbc4bc0424cb5c75e5921be055c Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Wed, 20 Mar 2019 11:02:05 +0100 Subject: packet: rework packet_pick_tx_queue() to use common code selection Currently packet_pick_tx_queue() is the only caller of ndo_select_queue() using a fallback argument other than netdev_pick_tx. Leveraging rx queue, we can obtain a similar queue selection behavior using core helpers. After this change, ndo_select_queue() is always invoked with netdev_pick_tx() as fallback. We can change ndo_select_queue() signature in a followup patch, dropping an indirect call per transmitted packet in some scenarios (e.g. TCP syn and XDP generic xmit) This changes slightly how af packet queue selection happens when PACKET_QDISC_BYPASS is set. It's now more similar to plan dev_queue_xmit() tacking in account both XPS and TC mapping. v1 -> v2: - rebased after helper name change RFC -> v1: - initialize sender_cpu to the expected value Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 57cd2bdd9f78..0ff28db4239f 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2152,6 +2152,8 @@ static inline void netdev_for_each_tx_queue(struct net_device *dev, &qdisc_xmit_lock_key); \ } +u16 netdev_pick_tx(struct net_device *dev, struct sk_buff *skb, + struct net_device *sb_dev); struct netdev_queue *netdev_core_pick_tx(struct net_device *dev, struct sk_buff *skb, struct net_device *sb_dev); -- cgit v1.2.3 From a350eccee5830d9a1f29e393a88dc05a15326d44 Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Wed, 20 Mar 2019 11:02:06 +0100 Subject: net: remove 'fallback' argument from dev->ndo_select_queue() After the previous patch, all the callers of ndo_select_queue() provide as a 'fallback' argument netdev_pick_tx. The only exceptions are nested calls to ndo_select_queue(), which pass down the 'fallback' available in the current scope - still netdev_pick_tx. We can drop such argument and replace fallback() invocation with netdev_pick_tx(). This avoids an indirect call per xmit packet in some scenarios (TCP syn, UDP unconnected, XDP generic, pktgen) with device drivers implementing such ndo. It also clean the code a bit. Tested with ixgbe and CONFIG_FCOE=m With pktgen using queue xmit: threads vanilla patched (kpps) (kpps) 1 2334 2428 2 4166 4278 4 7895 8100 v1 -> v2: - rebased after helper's name change Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller --- include/linux/netdevice.h | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 0ff28db4239f..823762291ebf 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -986,8 +986,7 @@ struct devlink; * those the driver believes to be appropriate. * * u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb, - * struct net_device *sb_dev, - * select_queue_fallback_t fallback); + * struct net_device *sb_dev); * Called to decide which queue to use when device supports multiple * transmit queues. * @@ -1268,8 +1267,7 @@ struct net_device_ops { netdev_features_t features); u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb, - struct net_device *sb_dev, - select_queue_fallback_t fallback); + struct net_device *sb_dev); void (*ndo_change_rx_flags)(struct net_device *dev, int flags); void (*ndo_set_rx_mode)(struct net_device *dev); @@ -2641,11 +2639,9 @@ void dev_close_many(struct list_head *head, bool unlink); void dev_disable_lro(struct net_device *dev); int dev_loopback_xmit(struct net *net, struct sock *sk, struct sk_buff *newskb); u16 dev_pick_tx_zero(struct net_device *dev, struct sk_buff *skb, - struct net_device *sb_dev, - select_queue_fallback_t fallback); + struct net_device *sb_dev); u16 dev_pick_tx_cpu_id(struct net_device *dev, struct sk_buff *skb, - struct net_device *sb_dev, - select_queue_fallback_t fallback); + struct net_device *sb_dev); int dev_queue_xmit(struct sk_buff *skb); int dev_queue_xmit_accel(struct sk_buff *skb, struct net_device *sb_dev); int dev_direct_xmit(struct sk_buff *skb, u16 queue_id); -- cgit v1.2.3 From a07b20004793d8926f78d63eb5980559f7813404 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 5 Nov 2018 17:40:30 +0000 Subject: vfs: syscall: Add open_tree(2) to reference or clone a mount open_tree(dfd, pathname, flags) Returns an O_PATH-opened file descriptor or an error. dfd and pathname specify the location to open, in usual fashion (see e.g. fstatat(2)). flags should be an OR of some of the following: * AT_PATH_EMPTY, AT_NO_AUTOMOUNT, AT_SYMLINK_NOFOLLOW - same meanings as usual * OPEN_TREE_CLOEXEC - make the resulting descriptor close-on-exec * OPEN_TREE_CLONE or OPEN_TREE_CLONE | AT_RECURSIVE - instead of opening the location in question, create a detached mount tree matching the subtree rooted at location specified by dfd/pathname. With AT_RECURSIVE the entire subtree is cloned, without it - only the part within in the mount containing the location in question. In other words, the same as mount --rbind or mount --bind would've taken. The detached tree will be dissolved on the final close of obtained file. Creation of such detached trees requires the same capabilities as doing mount --bind. Signed-off-by: Al Viro Signed-off-by: David Howells cc: linux-api@vger.kernel.org Signed-off-by: Al Viro --- include/linux/fs.h | 7 +++++-- include/linux/syscalls.h | 1 + 2 files changed, 6 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fs.h b/include/linux/fs.h index 8b42df09b04c..09b05ec5d059 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -162,10 +162,13 @@ typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset, #define FMODE_NONOTIFY ((__force fmode_t)0x4000000) /* File is capable of returning -EAGAIN if I/O will block */ -#define FMODE_NOWAIT ((__force fmode_t)0x8000000) +#define FMODE_NOWAIT ((__force fmode_t)0x8000000) + +/* File represents mount that needs unmounting */ +#define FMODE_NEED_UNMOUNT ((__force fmode_t)0x10000000) /* File does not contribute to nr_files count */ -#define FMODE_NOACCOUNT ((__force fmode_t)0x20000000) +#define FMODE_NOACCOUNT ((__force fmode_t)0x20000000) /* * Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index e446806a561f..6c29d586e66b 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -985,6 +985,7 @@ asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, unsigned mask, struct statx __user *buffer); asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, int flags, uint32_t sig); +asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, siginfo_t __user *info, unsigned int flags); -- cgit v1.2.3 From 2db154b3ea8e14b04fee23e3fdfd5e9d17fbc6ae Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 5 Nov 2018 17:40:30 +0000 Subject: vfs: syscall: Add move_mount(2) to move mounts around Add a move_mount() system call that will move a mount from one place to another and, in the next commit, allow to attach an unattached mount tree. The new system call looks like the following: int move_mount(int from_dfd, const char *from_path, int to_dfd, const char *to_path, unsigned int flags); Signed-off-by: David Howells cc: linux-api@vger.kernel.org Signed-off-by: Al Viro --- include/linux/lsm_hooks.h | 6 ++++++ include/linux/security.h | 7 +++++++ include/linux/syscalls.h | 3 +++ 3 files changed, 16 insertions(+) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index a9b8ff578b6b..cb33f81cf5a1 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -160,6 +160,10 @@ * Parse a string of security data filling in the opts structure * @options string containing all mount options known by the LSM * @opts binary data structure usable by the LSM + * @move_mount: + * Check permission before a mount is moved. + * @from_path indicates the mount that is going to be moved. + * @to_path indicates the mountpoint that will be mounted upon. * @dentry_init_security: * Compute a context for a dentry as the inode is not yet available * since NFSv4 has no label backed by an EA anyway. @@ -1501,6 +1505,7 @@ union security_list_options { unsigned long *set_kern_flags); int (*sb_add_mnt_opt)(const char *option, const char *val, int len, void **mnt_opts); + int (*move_mount)(const struct path *from_path, const struct path *to_path); int (*dentry_init_security)(struct dentry *dentry, int mode, const struct qstr *name, void **ctx, u32 *ctxlen); @@ -1835,6 +1840,7 @@ struct security_hook_heads { struct hlist_head sb_set_mnt_opts; struct hlist_head sb_clone_mnt_opts; struct hlist_head sb_add_mnt_opt; + struct hlist_head move_mount; struct hlist_head dentry_init_security; struct hlist_head dentry_create_files_as; #ifdef CONFIG_SECURITY_PATH diff --git a/include/linux/security.h b/include/linux/security.h index 49f2685324b0..1f2e06afc28f 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -250,6 +250,7 @@ int security_sb_clone_mnt_opts(const struct super_block *oldsb, unsigned long *set_kern_flags); int security_add_mnt_opt(const char *option, const char *val, int len, void **mnt_opts); +int security_move_mount(const struct path *from_path, const struct path *to_path); int security_dentry_init_security(struct dentry *dentry, int mode, const struct qstr *name, void **ctx, u32 *ctxlen); @@ -611,6 +612,12 @@ static inline int security_add_mnt_opt(const char *option, const char *val, return 0; } +static inline int security_move_mount(const struct path *from_path, + const struct path *to_path) +{ + return 0; +} + static inline int security_inode_alloc(struct inode *inode) { return 0; diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 6c29d586e66b..84347fc0a1a7 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -986,6 +986,9 @@ asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, int flags, uint32_t sig); asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); +asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, + int to_dfd, const char __user *to_path, + unsigned int ms_flags); asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, siginfo_t __user *info, unsigned int flags); -- cgit v1.2.3 From 24dcb3d90a1f67fe08c68a004af37df059d74005 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 1 Nov 2018 23:33:31 +0000 Subject: vfs: syscall: Add fsopen() to prepare for superblock creation Provide an fsopen() system call that starts the process of preparing to create a superblock that will then be mountable, using an fd as a context handle. fsopen() is given the name of the filesystem that will be used: int mfd = fsopen(const char *fsname, unsigned int flags); where flags can be 0 or FSOPEN_CLOEXEC. For example: sfd = fsopen("ext4", FSOPEN_CLOEXEC); fsconfig(sfd, FSCONFIG_SET_PATH, "source", "/dev/sda1", AT_FDCWD); fsconfig(sfd, FSCONFIG_SET_FLAG, "noatime", NULL, 0); fsconfig(sfd, FSCONFIG_SET_FLAG, "acl", NULL, 0); fsconfig(sfd, FSCONFIG_SET_FLAG, "user_xattr", NULL, 0); fsconfig(sfd, FSCONFIG_SET_STRING, "sb", "1", 0); fsconfig(sfd, FSCONFIG_CMD_CREATE, NULL, NULL, 0); fsinfo(sfd, NULL, ...); // query new superblock attributes mfd = fsmount(sfd, FSMOUNT_CLOEXEC, MS_RELATIME); move_mount(mfd, "", sfd, AT_FDCWD, "/mnt", MOVE_MOUNT_F_EMPTY_PATH); sfd = fsopen("afs", -1); fsconfig(fd, FSCONFIG_SET_STRING, "source", "#grand.central.org:root.cell", 0); fsconfig(fd, FSCONFIG_CMD_CREATE, NULL, NULL, 0); mfd = fsmount(sfd, 0, MS_NODEV); move_mount(mfd, "", sfd, AT_FDCWD, "/mnt", MOVE_MOUNT_F_EMPTY_PATH); If an error is reported at any step, an error message may be available to be read() back (ENODATA will be reported if there isn't an error available) in the form: "e :" "e SELinux:Mount on mountpoint not permitted" Once fsmount() has been called, further fsconfig() calls will incur EBUSY, even if the fsmount() fails. read() is still possible to retrieve error information. The fsopen() syscall creates a mount context and hangs it of the fd that it returns. Netlink is not used because it is optional and would make the core VFS dependent on the networking layer and also potentially add network namespace issues. Note that, for the moment, the caller must have SYS_CAP_ADMIN to use fsopen(). Signed-off-by: David Howells cc: linux-api@vger.kernel.org Signed-off-by: Al Viro --- include/linux/fs_context.h | 16 ++++++++++++++++ include/linux/syscalls.h | 1 + 2 files changed, 17 insertions(+) (limited to 'include/linux') diff --git a/include/linux/fs_context.h b/include/linux/fs_context.h index eaca452088fa..7ab8b44fab3e 100644 --- a/include/linux/fs_context.h +++ b/include/linux/fs_context.h @@ -15,6 +15,7 @@ #include #include #include +#include struct cred; struct dentry; @@ -34,6 +35,19 @@ enum fs_context_purpose { FS_CONTEXT_FOR_RECONFIGURE, /* Superblock reconfiguration (remount) */ }; +/* + * Userspace usage phase for fsopen/fspick. + */ +enum fs_context_phase { + FS_CONTEXT_CREATE_PARAMS, /* Loading params for sb creation */ + FS_CONTEXT_CREATING, /* A superblock is being created */ + FS_CONTEXT_AWAITING_MOUNT, /* Superblock created, awaiting fsmount() */ + FS_CONTEXT_AWAITING_RECONF, /* Awaiting initialisation for reconfiguration */ + FS_CONTEXT_RECONF_PARAMS, /* Loading params for reconfiguration */ + FS_CONTEXT_RECONFIGURING, /* Reconfiguring the superblock */ + FS_CONTEXT_FAILED, /* Failed to correctly transition a context */ +}; + /* * Type of parameter value. */ @@ -74,6 +88,7 @@ struct fs_parameter { */ struct fs_context { const struct fs_context_operations *ops; + struct mutex uapi_mutex; /* Userspace access mutex */ struct file_system_type *fs_type; void *fs_private; /* The filesystem's context */ struct dentry *root; /* The root and superblock */ @@ -88,6 +103,7 @@ struct fs_context { unsigned int sb_flags_mask; /* Superblock flags that were changed */ unsigned int lsm_flags; /* Information flags from the fs to the LSM */ enum fs_context_purpose purpose:8; + enum fs_context_phase phase:8; /* The phase the context is in */ bool need_free:1; /* Need to call ops->free() */ bool global:1; /* Goes into &init_user_ns */ }; diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 84347fc0a1a7..0c9bd5427e8f 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -989,6 +989,7 @@ asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, int to_dfd, const char __user *to_path, unsigned int ms_flags); +asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, siginfo_t __user *info, unsigned int flags); -- cgit v1.2.3 From 007ec26cdc9fefacbed85b592afc69413194499c Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 1 Nov 2018 23:34:29 +0000 Subject: vfs: Implement logging through fs_context Implement the ability for filesystems to log error, warning and informational messages through the fs_context. These can be extracted by userspace by reading from an fd created by fsopen(). Error messages are prefixed with "e ", warnings with "w " and informational messages with "i ". Inside the kernel, formatted messages are malloc'd but unformatted messages are not copied if they're either in the core .rodata section or in the .rodata section of the filesystem module pinned by fs_context::fs_type. The messages are only good till the fs_type is released. Note that the logging object is shared between duplicated fs_context structures. This is so that such as NFS which do a mount within a mount can get at least some of the errors from the inner mount. Five logging functions are provided for this: (1) void logfc(struct fs_context *fc, const char *fmt, ...); This logs a message into the context. If the buffer is full, the earliest message is discarded. (2) void errorf(fc, fmt, ...); This wraps logfc() to log an error. (3) void invalf(fc, fmt, ...); This wraps errorf() and returns -EINVAL for convenience. (4) void warnf(fc, fmt, ...); This wraps logfc() to log a warning. (5) void infof(fc, fmt, ...); This wraps logfc() to log an informational message. Signed-off-by: David Howells Signed-off-by: Al Viro --- include/linux/fs_context.h | 22 +++++++++++++++------- include/linux/module.h | 6 ++++++ 2 files changed, 21 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fs_context.h b/include/linux/fs_context.h index 7ab8b44fab3e..1f966670c8dc 100644 --- a/include/linux/fs_context.h +++ b/include/linux/fs_context.h @@ -13,6 +13,7 @@ #define _LINUX_FS_CONTEXT_H #include +#include #include #include #include @@ -95,6 +96,7 @@ struct fs_context { struct user_namespace *user_ns; /* The user namespace for this mount */ struct net *net_ns; /* The network namespace for this mount */ const struct cred *cred; /* The mounter's credentials */ + struct fc_log *log; /* Logging buffer */ const char *source; /* The source name (eg. dev path) */ const char *subtype; /* The subtype to set on the superblock */ void *security; /* Linux S&M options */ @@ -151,15 +153,21 @@ extern int vfs_get_super(struct fs_context *fc, extern const struct file_operations fscontext_fops; -#ifdef CONFIG_PRINTK +/* + * Mount error, warning and informational message logging. This structure is + * shareable between a mount and a subordinate mount. + */ +struct fc_log { + refcount_t usage; + u8 head; /* Insertion index in buffer[] */ + u8 tail; /* Removal index in buffer[] */ + u8 need_free; /* Mask of kfree'able items in buffer[] */ + struct module *owner; /* Owner module for strings that don't then need freeing */ + char *buffer[8]; +}; + extern __attribute__((format(printf, 2, 3))) void logfc(struct fs_context *fc, const char *fmt, ...); -#else -static inline __attribute__((format(printf, 2, 3))) -void logfc(struct fs_context *fc, const char *fmt, ...) -{ -} -#endif /** * infof - Store supplementary informational message diff --git a/include/linux/module.h b/include/linux/module.h index 5bf5dcd91009..7dc4dc79b634 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -709,6 +709,12 @@ static inline bool is_module_text_address(unsigned long addr) return false; } +static inline bool within_module_core(unsigned long addr, + const struct module *mod) +{ + return false; +} + /* Get/put a kernel symbol (calls should be symmetric) */ #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak)); &(x); }) #define symbol_put(x) do { } while (0) -- cgit v1.2.3 From ecdab150fddb42fe6a739335257949220033b782 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 1 Nov 2018 23:36:09 +0000 Subject: vfs: syscall: Add fsconfig() for configuring and managing a context Add a syscall for configuring a filesystem creation context and triggering actions upon it, to be used in conjunction with fsopen, fspick and fsmount. long fsconfig(int fs_fd, unsigned int cmd, const char *key, const void *value, int aux); Where fs_fd indicates the context, cmd indicates the action to take, key indicates the parameter name for parameter-setting actions and, if needed, value points to a buffer containing the value and aux can give more information for the value. The following command IDs are proposed: (*) FSCONFIG_SET_FLAG: No value is specified. The parameter must be boolean in nature. The key may be prefixed with "no" to invert the setting. value must be NULL and aux must be 0. (*) FSCONFIG_SET_STRING: A string value is specified. The parameter can be expecting boolean, integer, string or take a path. A conversion to an appropriate type will be attempted (which may include looking up as a path). value points to a NUL-terminated string and aux must be 0. (*) FSCONFIG_SET_BINARY: A binary blob is specified. value points to the blob and aux indicates its size. The parameter must be expecting a blob. (*) FSCONFIG_SET_PATH: A non-empty path is specified. The parameter must be expecting a path object. value points to a NUL-terminated string that is the path and aux is a file descriptor at which to start a relative lookup or AT_FDCWD. (*) FSCONFIG_SET_PATH_EMPTY: As fsconfig_set_path, but with AT_EMPTY_PATH implied. (*) FSCONFIG_SET_FD: An open file descriptor is specified. value must be NULL and aux indicates the file descriptor. (*) FSCONFIG_CMD_CREATE: Trigger superblock creation. (*) FSCONFIG_CMD_RECONFIGURE: Trigger superblock reconfiguration. For the "set" command IDs, the idea is that the file_system_type will point to a list of parameters and the types of value that those parameters expect to take. The core code can then do the parse and argument conversion and then give the LSM and FS a cooked option or array of options to use. Source specification is also done the same way same way, using special keys "source", "source1", "source2", etc.. [!] Note that, for the moment, the key and value are just glued back together and handed to the filesystem. Every filesystem that uses options uses match_token() and co. to do this, and this will need to be changed - but not all at once. Example usage: fd = fsopen("ext4", FSOPEN_CLOEXEC); fsconfig(fd, fsconfig_set_path, "source", "/dev/sda1", AT_FDCWD); fsconfig(fd, fsconfig_set_path_empty, "journal_path", "", journal_fd); fsconfig(fd, fsconfig_set_fd, "journal_fd", "", journal_fd); fsconfig(fd, fsconfig_set_flag, "user_xattr", NULL, 0); fsconfig(fd, fsconfig_set_flag, "noacl", NULL, 0); fsconfig(fd, fsconfig_set_string, "sb", "1", 0); fsconfig(fd, fsconfig_set_string, "errors", "continue", 0); fsconfig(fd, fsconfig_set_string, "data", "journal", 0); fsconfig(fd, fsconfig_set_string, "context", "unconfined_u:...", 0); fsconfig(fd, fsconfig_cmd_create, NULL, NULL, 0); mfd = fsmount(fd, FSMOUNT_CLOEXEC, MS_NOEXEC); or: fd = fsopen("ext4", FSOPEN_CLOEXEC); fsconfig(fd, fsconfig_set_string, "source", "/dev/sda1", 0); fsconfig(fd, fsconfig_cmd_create, NULL, NULL, 0); mfd = fsmount(fd, FSMOUNT_CLOEXEC, MS_NOEXEC); or: fd = fsopen("afs", FSOPEN_CLOEXEC); fsconfig(fd, fsconfig_set_string, "source", "#grand.central.org:root.cell", 0); fsconfig(fd, fsconfig_cmd_create, NULL, NULL, 0); mfd = fsmount(fd, FSMOUNT_CLOEXEC, MS_NOEXEC); or: fd = fsopen("jffs2", FSOPEN_CLOEXEC); fsconfig(fd, fsconfig_set_string, "source", "mtd0", 0); fsconfig(fd, fsconfig_cmd_create, NULL, NULL, 0); mfd = fsmount(fd, FSMOUNT_CLOEXEC, MS_NOEXEC); Signed-off-by: David Howells cc: linux-api@vger.kernel.org Signed-off-by: Al Viro --- include/linux/syscalls.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 0c9bd5427e8f..925f9dfc356b 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -990,6 +990,8 @@ asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, int to_dfd, const char __user *to_path, unsigned int ms_flags); asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); +asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key, + const void __user *value, int aux); asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, siginfo_t __user *info, unsigned int flags); -- cgit v1.2.3 From 93766fbd2696c2c4453dd8e1070977e9cd4e6b6d Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 1 Nov 2018 23:36:14 +0000 Subject: vfs: syscall: Add fsmount() to create a mount for a superblock Provide a system call by which a filesystem opened with fsopen() and configured by a series of fsconfig() calls can have a detached mount object created for it. This mount object can then be attached to the VFS mount hierarchy using move_mount() by passing the returned file descriptor as the from directory fd. The system call looks like: int mfd = fsmount(int fsfd, unsigned int flags, unsigned int attr_flags); where fsfd is the file descriptor returned by fsopen(). flags can be 0 or FSMOUNT_CLOEXEC. attr_flags is a bitwise-OR of the following flags: MOUNT_ATTR_RDONLY Mount read-only MOUNT_ATTR_NOSUID Ignore suid and sgid bits MOUNT_ATTR_NODEV Disallow access to device special files MOUNT_ATTR_NOEXEC Disallow program execution MOUNT_ATTR__ATIME Setting on how atime should be updated MOUNT_ATTR_RELATIME - Update atime relative to mtime/ctime MOUNT_ATTR_NOATIME - Do not update access times MOUNT_ATTR_STRICTATIME - Always perform atime updates MOUNT_ATTR_NODIRATIME Do not update directory access times In the event that fsmount() fails, it may be possible to get an error message by calling read() on fsfd. If no message is available, ENODATA will be reported. Signed-off-by: David Howells cc: linux-api@vger.kernel.org Signed-off-by: Al Viro --- include/linux/syscalls.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 925f9dfc356b..0e697f595278 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -992,6 +992,7 @@ asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key, const void __user *value, int aux); +asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags); asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, siginfo_t __user *info, unsigned int flags); -- cgit v1.2.3 From cf3cba4a429be43e5527a3f78859b1bfd9ebc5fb Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 1 Nov 2018 23:36:23 +0000 Subject: vfs: syscall: Add fspick() to select a superblock for reconfiguration Provide an fspick() system call that can be used to pick an existing mountpoint into an fs_context which can thereafter be used to reconfigure a superblock (equivalent of the superblock side of -o remount). This looks like: int fd = fspick(AT_FDCWD, "/mnt", FSPICK_CLOEXEC | FSPICK_NO_AUTOMOUNT); fsconfig(fd, FSCONFIG_SET_FLAG, "intr", NULL, 0); fsconfig(fd, FSCONFIG_SET_FLAG, "noac", NULL, 0); fsconfig(fd, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0); At the point of fspick being called, the file descriptor referring to the filesystem context is in exactly the same state as the one that was created by fsopen() after fsmount() has been successfully called. Signed-off-by: David Howells cc: linux-api@vger.kernel.org Signed-off-by: Al Viro --- include/linux/syscalls.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 0e697f595278..e2870fe1be5b 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -993,6 +993,7 @@ asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key, const void __user *value, int aux); asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags); +asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags); asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, siginfo_t __user *info, unsigned int flags); -- cgit v1.2.3 From b230d5aba2d1a7b0636408889a75bf9eae6b8bc7 Mon Sep 17 00:00:00 2001 From: Ondrej Mosnacek Date: Fri, 22 Feb 2019 15:57:16 +0100 Subject: LSM: add new hook for kernfs node initialization This patch introduces a new security hook that is intended for initializing the security data for newly created kernfs nodes, which provide a way of storing a non-default security context, but need to operate independently from mounts (and therefore may not have an associated inode at the moment of creation). The main motivation is to allow kernfs nodes to inherit the context of the parent under SELinux, similar to the behavior of security_inode_init_security(). Other LSMs may implement their own logic for handling the creation of new nodes. This patch also adds helper functions to for getting/setting security xattrs of a kernfs node so that LSMs hooks are able to do their job. Other important attributes should be accessible direcly in the kernfs_node fields (in case there is need for more, then new helpers should be added to kernfs.h along with the patch that needs them). Signed-off-by: Ondrej Mosnacek Acked-by: Casey Schaufler [PM: more manual merge fixes] Signed-off-by: Paul Moore --- include/linux/kernfs.h | 15 +++++++++++++++ include/linux/lsm_hooks.h | 13 +++++++++++++ include/linux/security.h | 9 +++++++++ 3 files changed, 37 insertions(+) (limited to 'include/linux') diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index c8893f663470..39eea07c2900 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -371,6 +371,11 @@ __poll_t kernfs_generic_poll(struct kernfs_open_file *of, struct poll_table_struct *pt); void kernfs_notify(struct kernfs_node *kn); +int kernfs_security_xattr_get(struct kernfs_node *kn, const char *suffix, + void *value, size_t size); +int kernfs_security_xattr_set(struct kernfs_node *kn, const char *suffix, + void *value, size_t size, int flags); + const void *kernfs_super_ns(struct super_block *sb); int kernfs_get_tree(struct fs_context *fc); void kernfs_free_fs_context(struct fs_context *fc); @@ -473,6 +478,16 @@ static inline int kernfs_setattr(struct kernfs_node *kn, static inline void kernfs_notify(struct kernfs_node *kn) { } +static inline int kernfs_security_xattr_get(struct kernfs_node *kn, + const char *suffix, void *value, + size_t size) +{ return -ENOSYS; } + +static inline int kernfs_security_xattr_set(struct kernfs_node *kn, + const char *suffix, void *value, + size_t size, int flags) +{ return -ENOSYS; } + static inline const void *kernfs_super_ns(struct super_block *sb) { return NULL; } diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index a9b8ff578b6b..0dd5bda719e6 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -445,6 +445,15 @@ * to abort the copy up. Note that the caller is responsible for reading * and writing the xattrs as this hook is merely a filter. * + * Security hooks for kernfs node operations + * + * @kernfs_init_security + * Initialize the security context of a newly created kernfs node based + * on its own and its parent's attributes. + * + * @kn_dir the parent kernfs node + * @kn the new child kernfs node + * * Security hooks for file operations * * @file_permission: @@ -1578,6 +1587,9 @@ union security_list_options { int (*inode_copy_up)(struct dentry *src, struct cred **new); int (*inode_copy_up_xattr)(const char *name); + int (*kernfs_init_security)(struct kernfs_node *kn_dir, + struct kernfs_node *kn); + int (*file_permission)(struct file *file, int mask); int (*file_alloc_security)(struct file *file); void (*file_free_security)(struct file *file); @@ -1879,6 +1891,7 @@ struct security_hook_heads { struct hlist_head inode_getsecid; struct hlist_head inode_copy_up; struct hlist_head inode_copy_up_xattr; + struct hlist_head kernfs_init_security; struct hlist_head file_permission; struct hlist_head file_alloc_security; struct hlist_head file_free_security; diff --git a/include/linux/security.h b/include/linux/security.h index 49f2685324b0..d543293216b9 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -51,6 +51,7 @@ struct fown_struct; struct file_operations; struct msg_msg; struct xattr; +struct kernfs_node; struct xfrm_sec_ctx; struct mm_struct; struct fs_context; @@ -299,6 +300,8 @@ int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer void security_inode_getsecid(struct inode *inode, u32 *secid); int security_inode_copy_up(struct dentry *src, struct cred **new); int security_inode_copy_up_xattr(const char *name); +int security_kernfs_init_security(struct kernfs_node *kn_dir, + struct kernfs_node *kn); int security_file_permission(struct file *file, int mask); int security_file_alloc(struct file *file); void security_file_free(struct file *file); @@ -801,6 +804,12 @@ static inline int security_inode_copy_up(struct dentry *src, struct cred **new) return 0; } +static inline int security_kernfs_init_security(struct kernfs_node *kn_dir, + struct kernfs_node *kn) +{ + return 0; +} + static inline int security_inode_copy_up_xattr(const char *name) { return -EOPNOTSUPP; -- cgit v1.2.3 From 7287275b4301e230be9e4569431c7dacb67ebc13 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 4 Mar 2019 20:38:29 +0100 Subject: regulator: add regulator_get_linear_step() stub helper The regulator header has empty inline functions for most interfaces, but not regulator_get_linear_step(), which has just grown a user that does not depend on regulators otherwise: drivers/clk/tegra/clk-tegra124-dfll-fcpu.c: In function 'get_alignment_from_regulator': drivers/clk/tegra/clk-tegra124-dfll-fcpu.c:555:19: error: implicit declaration of function 'regulator_get_linear_step'; did you mean 'regulator_get_drvdata'? [-Werror=implicit-function-declaration] align->step_uv = regulator_get_linear_step(reg); ^~~~~~~~~~~~~~~~~~~~~~~~~ regulator_get_drvdata cc1: all warnings being treated as errors scripts/Makefile.build:278: recipe for target 'drivers/clk/tegra/clk-tegra124-dfll-fcpu.o' failed Add the missing stub along the others. Fixes: b3cf8d069505 ("clk: tegra: dfll: CVB calculation alignment with the regulator") Signed-off-by: Arnd Bergmann Signed-off-by: Mark Brown --- include/linux/regulator/consumer.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index f3f76051e8b0..aaf3cee70439 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -478,6 +478,11 @@ static inline int regulator_is_supported_voltage(struct regulator *regulator, return 0; } +static inline unsigned int regulator_get_linear_step(struct regulator *regulator) +{ + return 0; +} + static inline int regulator_set_current_limit(struct regulator *regulator, int min_uA, int max_uA) { -- cgit v1.2.3 From 981d1aa0697ce1393e00933f154d181e965703d0 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Thu, 24 Jan 2019 15:56:43 +0100 Subject: mtd: spinand: Use the spi-mem dirmap API Make use of the spi-mem direct mapping API to let advanced controllers optimize read/write operations when they support direct mapping. Signed-off-by: Boris Brezillon Cc: Stefan Roese Signed-off-by: Miquel Raynal Tested-by: Stefan Roese --- include/linux/mtd/spinand.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h index b92e2aa955b6..507f7e289bd1 100644 --- a/include/linux/mtd/spinand.h +++ b/include/linux/mtd/spinand.h @@ -302,6 +302,11 @@ struct spinand_info { __VA_ARGS__ \ } +struct spinand_dirmap { + struct spi_mem_dirmap_desc *wdesc; + struct spi_mem_dirmap_desc *rdesc; +}; + /** * struct spinand_device - SPI NAND device instance * @base: NAND device instance @@ -341,6 +346,8 @@ struct spinand_device { const struct spi_mem_op *update_cache; } op_templates; + struct spinand_dirmap *dirmaps; + int (*select_target)(struct spinand_device *spinand, unsigned int target); unsigned int cur_target; -- cgit v1.2.3 From 1903ba82823b244e92764a9d899ebaac5ebcd5ec Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Mon, 12 Nov 2018 11:16:10 -0600 Subject: PCI/MSI: Remove unused __write_msi_msg() and write_msi_msg() Remove unused __write_msi_msg() and write_msi_msg(). These were added by 83a18912b0e8 ("PCI/MSI: Rename write_msi_msg() to pci_write_msi_msg()"), they served their purpose, and they're no longer needed. Signed-off-by: Bjorn Helgaas CC: Jiang Liu # 83a18912b0e8 author --- include/linux/msi.h | 9 --------- 1 file changed, 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/msi.h b/include/linux/msi.h index 7e9b81c3b50d..f934982a0e68 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -148,15 +148,6 @@ u32 __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag); void pci_msi_mask_irq(struct irq_data *data); void pci_msi_unmask_irq(struct irq_data *data); -/* Conversion helpers. Should be removed after merging */ -static inline void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg) -{ - __pci_write_msi_msg(entry, msg); -} -static inline void write_msi_msg(int irq, struct msi_msg *msg) -{ - pci_write_msi_msg(irq, msg); -} static inline void mask_msi_irq(struct irq_data *data) { pci_msi_mask_irq(data); -- cgit v1.2.3 From fc2786545395e0ca69f245e5617fee0639ff0d25 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Thu, 21 Mar 2019 14:39:24 -0500 Subject: PCI/MSI: Remove unused mask_msi_irq() and unmask_msi_irq() Change pcie-xilinx-nwl.c to use pci_msi_mask_irq() and pci_msi_unmask_irq() like all other PCI host controller drivers. Remove the now-unused mask_msi_irq() and unmask_msi_irq(). Signed-off-by: Bjorn Helgaas CC: Michal Simek CC: linux-arm-kernel@lists.infradead.org --- include/linux/msi.h | 9 --------- 1 file changed, 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/msi.h b/include/linux/msi.h index f934982a0e68..052f04fcf953 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -148,15 +148,6 @@ u32 __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag); void pci_msi_mask_irq(struct irq_data *data); void pci_msi_unmask_irq(struct irq_data *data); -static inline void mask_msi_irq(struct irq_data *data) -{ - pci_msi_mask_irq(data); -} -static inline void unmask_msi_irq(struct irq_data *data) -{ - pci_msi_unmask_irq(data); -} - /* * The arch hooks to setup up msi irqs. Those functions are * implemented as weak symbols so that they /can/ be overriden by -- cgit v1.2.3 From 4feb7c7a4fbb8f63371be31cda79433c7cf3da86 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 21 Mar 2019 14:42:40 +1100 Subject: rhashtable: don't hold lock on first table throughout insertion. rhashtable_try_insert() currently holds a lock on the bucket in the first table, while also locking buckets in subsequent tables. This is unnecessary and looks like a hold-over from some earlier version of the implementation. As insert and remove always lock a bucket in each table in turn, and as insert only inserts in the final table, there cannot be any races that are not covered by simply locking a bucket in each table in turn. When an insert call reaches that last table it can be sure that there is no matchinf entry in any other table as it has searched them all, and insertion never happens anywhere but in the last table. The fact that code tests for the existence of future_tbl while holding a lock on the relevant bucket ensures that two threads inserting the same key will make compatible decisions about which is the "last" table. This simplifies the code and allows the ->rehash field to be discarded. We still need a way to ensure that a dead bucket_table is never re-linked by rhashtable_walk_stop(). This can be achieved by calling call_rcu() inside the locked region, and checking with rcu_head_after_call_rcu() in rhashtable_walk_stop() to see if the bucket table is empty and dead. Acked-by: Herbert Xu Reviewed-by: Paul E. McKenney Signed-off-by: NeilBrown Signed-off-by: David S. Miller --- include/linux/rhashtable.h | 13 ------------- 1 file changed, 13 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index ae9c0f71f311..3864193d5e2e 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -63,7 +63,6 @@ struct bucket_table { unsigned int size; unsigned int nest; - unsigned int rehash; u32 hash_rnd; unsigned int locks_mask; spinlock_t *locks; @@ -776,12 +775,6 @@ static inline int rhltable_insert( * @obj: pointer to hash head inside object * @params: hash table parameters * - * Locks down the bucket chain in both the old and new table if a resize - * is in progress to ensure that writers can't remove from the old table - * and can't insert to the new table during the atomic operation of search - * and insertion. Searches for duplicates in both the old and new table if - * a resize is in progress. - * * This lookup function may only be used for fixed key hash table (key_len * parameter set). It will BUG() if used inappropriately. * @@ -837,12 +830,6 @@ static inline void *rhashtable_lookup_get_insert_fast( * @obj: pointer to hash head inside object * @params: hash table parameters * - * Locks down the bucket chain in both the old and new table if a resize - * is in progress to ensure that writers can't remove from the old table - * and can't insert to the new table during the atomic operation of search - * and insertion. Searches for duplicates in both the old and new table if - * a resize is in progress. - * * Lookups may occur in parallel with hashtable mutations and resizing. * * Will trigger an automatic deferred table resizing if residency in the -- cgit v1.2.3 From f7ad68bf98506f48129267438ada1255fc4edfa2 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 21 Mar 2019 14:42:40 +1100 Subject: rhashtable: rename rht_for_each*continue as *from. The pattern set by list.h is that for_each..continue() iterators start at the next entry after the given one, while for_each..from() iterators start at the given entry. The rht_for_each*continue() iterators are documented as though the start at the 'next' entry, but actually start at the given entry, and they are used expecting that behaviour. So fix the documentation and change the names to *from for consistency with list.h Acked-by: Herbert Xu Acked-by: Miguel Ojeda Signed-off-by: NeilBrown Signed-off-by: David S. Miller --- include/linux/rhashtable.h | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index 3864193d5e2e..86dfa417848d 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -306,13 +306,13 @@ static inline struct rhash_head __rcu **rht_bucket_insert( } /** - * rht_for_each_continue - continue iterating over hash chain + * rht_for_each_from - iterate over hash chain from given head * @pos: the &struct rhash_head to use as a loop cursor. - * @head: the previous &struct rhash_head to continue from + * @head: the &struct rhash_head to start from * @tbl: the &struct bucket_table * @hash: the hash value / bucket index */ -#define rht_for_each_continue(pos, head, tbl, hash) \ +#define rht_for_each_from(pos, head, tbl, hash) \ for (pos = rht_dereference_bucket(head, tbl, hash); \ !rht_is_a_nulls(pos); \ pos = rht_dereference_bucket((pos)->next, tbl, hash)) @@ -324,18 +324,18 @@ static inline struct rhash_head __rcu **rht_bucket_insert( * @hash: the hash value / bucket index */ #define rht_for_each(pos, tbl, hash) \ - rht_for_each_continue(pos, *rht_bucket(tbl, hash), tbl, hash) + rht_for_each_from(pos, *rht_bucket(tbl, hash), tbl, hash) /** - * rht_for_each_entry_continue - continue iterating over hash chain + * rht_for_each_entry_from - iterate over hash chain from given head * @tpos: the type * to use as a loop cursor. * @pos: the &struct rhash_head to use as a loop cursor. - * @head: the previous &struct rhash_head to continue from + * @head: the &struct rhash_head to start from * @tbl: the &struct bucket_table * @hash: the hash value / bucket index * @member: name of the &struct rhash_head within the hashable struct. */ -#define rht_for_each_entry_continue(tpos, pos, head, tbl, hash, member) \ +#define rht_for_each_entry_from(tpos, pos, head, tbl, hash, member) \ for (pos = rht_dereference_bucket(head, tbl, hash); \ (!rht_is_a_nulls(pos)) && rht_entry(tpos, pos, member); \ pos = rht_dereference_bucket((pos)->next, tbl, hash)) @@ -349,7 +349,7 @@ static inline struct rhash_head __rcu **rht_bucket_insert( * @member: name of the &struct rhash_head within the hashable struct. */ #define rht_for_each_entry(tpos, pos, tbl, hash, member) \ - rht_for_each_entry_continue(tpos, pos, *rht_bucket(tbl, hash), \ + rht_for_each_entry_from(tpos, pos, *rht_bucket(tbl, hash), \ tbl, hash, member) /** @@ -374,9 +374,9 @@ static inline struct rhash_head __rcu **rht_bucket_insert( rht_dereference_bucket(pos->next, tbl, hash) : NULL) /** - * rht_for_each_rcu_continue - continue iterating over rcu hash chain + * rht_for_each_rcu_from - iterate over rcu hash chain from given head * @pos: the &struct rhash_head to use as a loop cursor. - * @head: the previous &struct rhash_head to continue from + * @head: the &struct rhash_head to start from * @tbl: the &struct bucket_table * @hash: the hash value / bucket index * @@ -384,7 +384,7 @@ static inline struct rhash_head __rcu **rht_bucket_insert( * the _rcu mutation primitives such as rhashtable_insert() as long as the * traversal is guarded by rcu_read_lock(). */ -#define rht_for_each_rcu_continue(pos, head, tbl, hash) \ +#define rht_for_each_rcu_from(pos, head, tbl, hash) \ for (({barrier(); }), \ pos = rht_dereference_bucket_rcu(head, tbl, hash); \ !rht_is_a_nulls(pos); \ @@ -401,13 +401,13 @@ static inline struct rhash_head __rcu **rht_bucket_insert( * traversal is guarded by rcu_read_lock(). */ #define rht_for_each_rcu(pos, tbl, hash) \ - rht_for_each_rcu_continue(pos, *rht_bucket(tbl, hash), tbl, hash) + rht_for_each_rcu_from(pos, *rht_bucket(tbl, hash), tbl, hash) /** - * rht_for_each_entry_rcu_continue - continue iterating over rcu hash chain + * rht_for_each_entry_rcu_from - iterated over rcu hash chain from given head * @tpos: the type * to use as a loop cursor. * @pos: the &struct rhash_head to use as a loop cursor. - * @head: the previous &struct rhash_head to continue from + * @head: the &struct rhash_head to start from * @tbl: the &struct bucket_table * @hash: the hash value / bucket index * @member: name of the &struct rhash_head within the hashable struct. @@ -416,7 +416,7 @@ static inline struct rhash_head __rcu **rht_bucket_insert( * the _rcu mutation primitives such as rhashtable_insert() as long as the * traversal is guarded by rcu_read_lock(). */ -#define rht_for_each_entry_rcu_continue(tpos, pos, head, tbl, hash, member) \ +#define rht_for_each_entry_rcu_from(tpos, pos, head, tbl, hash, member) \ for (({barrier(); }), \ pos = rht_dereference_bucket_rcu(head, tbl, hash); \ (!rht_is_a_nulls(pos)) && rht_entry(tpos, pos, member); \ @@ -435,7 +435,7 @@ static inline struct rhash_head __rcu **rht_bucket_insert( * traversal is guarded by rcu_read_lock(). */ #define rht_for_each_entry_rcu(tpos, pos, tbl, hash, member) \ - rht_for_each_entry_rcu_continue(tpos, pos, *rht_bucket(tbl, hash), \ + rht_for_each_entry_rcu_from(tpos, pos, *rht_bucket(tbl, hash), \ tbl, hash, member) /** @@ -491,7 +491,7 @@ restart: hash = rht_key_hashfn(ht, tbl, key, params); head = rht_bucket(tbl, hash); do { - rht_for_each_rcu_continue(he, *head, tbl, hash) { + rht_for_each_rcu_from(he, *head, tbl, hash) { if (params.obj_cmpfn ? params.obj_cmpfn(&arg, rht_obj(ht, he)) : rhashtable_compare(&arg, rht_obj(ht, he))) @@ -625,7 +625,7 @@ slow_path: if (!pprev) goto out; - rht_for_each_continue(head, *pprev, tbl, hash) { + rht_for_each_from(head, *pprev, tbl, hash) { struct rhlist_head *plist; struct rhlist_head *list; @@ -890,7 +890,7 @@ static inline int __rhashtable_remove_fast_one( spin_lock_bh(lock); pprev = rht_bucket_var(tbl, hash); - rht_for_each_continue(he, *pprev, tbl, hash) { + rht_for_each_from(he, *pprev, tbl, hash) { struct rhlist_head *list; list = container_of(he, struct rhlist_head, rhead); @@ -1042,7 +1042,7 @@ static inline int __rhashtable_replace_fast( spin_lock_bh(lock); pprev = rht_bucket_var(tbl, hash); - rht_for_each_continue(he, *pprev, tbl, hash) { + rht_for_each_from(he, *pprev, tbl, hash) { if (he != obj_old) { pprev = &he->next; continue; -- cgit v1.2.3 From 85a51f8c28b9812642d76db6889f3f39dc3fbab3 Mon Sep 17 00:00:00 2001 From: Lorenz Bauer Date: Fri, 22 Mar 2019 09:54:00 +0800 Subject: bpf: allow helpers to return PTR_TO_SOCK_COMMON It's currently not possible to access timewait or request sockets from eBPF, since there is no way to return a PTR_TO_SOCK_COMMON from a helper. Introduce RET_PTR_TO_SOCK_COMMON to enable this behaviour. Signed-off-by: Lorenz Bauer Signed-off-by: Alexei Starovoitov --- include/linux/bpf.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index f02367faa58d..f62897198844 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -205,6 +205,7 @@ enum bpf_return_type { RET_PTR_TO_MAP_VALUE_OR_NULL, /* returns a pointer to map elem value or NULL */ RET_PTR_TO_SOCKET_OR_NULL, /* returns a pointer to a socket or NULL */ RET_PTR_TO_TCP_SOCK_OR_NULL, /* returns a pointer to a tcp_sock or NULL */ + RET_PTR_TO_SOCK_COMMON_OR_NULL, /* returns a pointer to a sock_common or NULL */ }; /* eBPF function prototype used by verifier to allow BPF_CALLs from eBPF programs -- cgit v1.2.3 From d7dcf26ff0ffd7b56fe2b09ed7f1867589f3cdf1 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 1 Mar 2019 23:48:21 +0100 Subject: softirq: Remove tasklet_hrtimer There are no more users of this interface. Remove it. Signed-off-by: Thomas Gleixner Signed-off-by: Anna-Maria Gleixner Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Thomas Gleixner Acked-by: David S. Miller Cc: netdev@vger.kernel.org Link: https://lkml.kernel.org/r/20190301224821.29843-4-bigeasy@linutronix.de --- include/linux/interrupt.h | 25 ------------------------- 1 file changed, 25 deletions(-) (limited to 'include/linux') diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 690b238a44d5..c7eef32e7739 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -668,31 +668,6 @@ extern void tasklet_kill_immediate(struct tasklet_struct *t, unsigned int cpu); extern void tasklet_init(struct tasklet_struct *t, void (*func)(unsigned long), unsigned long data); -struct tasklet_hrtimer { - struct hrtimer timer; - struct tasklet_struct tasklet; - enum hrtimer_restart (*function)(struct hrtimer *); -}; - -extern void -tasklet_hrtimer_init(struct tasklet_hrtimer *ttimer, - enum hrtimer_restart (*function)(struct hrtimer *), - clockid_t which_clock, enum hrtimer_mode mode); - -static inline -void tasklet_hrtimer_start(struct tasklet_hrtimer *ttimer, ktime_t time, - const enum hrtimer_mode mode) -{ - hrtimer_start(&ttimer->timer, time, mode); -} - -static inline -void tasklet_hrtimer_cancel(struct tasklet_hrtimer *ttimer) -{ - hrtimer_cancel(&ttimer->timer); - tasklet_kill(&ttimer->tasklet); -} - /* * Autoprobing for irqs: * -- cgit v1.2.3 From 3b0f31f2b8c9fb348e4530b88f6b64f9621f83d6 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 21 Mar 2019 22:51:02 +0100 Subject: genetlink: make policy common to family Since maxattr is common, the policy can't really differ sanely, so make it common as well. The only user that did in fact manage to make a non-common policy is taskstats, which has to be really careful about it (since it's still using a common maxattr!). This is no longer supported, but we can fake it using pre_doit. This reduces the size of e.g. nl80211.o (which has lots of commands): text data bss dec hex filename 398745 14323 2240 415308 6564c net/wireless/nl80211.o (before) 397913 14331 2240 414484 65314 net/wireless/nl80211.o (after) -------------------------------- -832 +8 0 -824 Which is obviously just 8 bytes for each command, and an added 8 bytes for the new policy pointer. I'm not sure why the ops list is counted as .text though. Most of the code transformations were done using the following spatch: @ops@ identifier OPS; expression POLICY; @@ struct genl_ops OPS[] = { ..., { - .policy = POLICY, }, ... }; @@ identifier ops.OPS; expression ops.POLICY; identifier fam; expression M; @@ struct genl_family fam = { .ops = OPS, .maxattr = M, + .policy = POLICY, ... }; This also gets rid of devlink_nl_cmd_region_read_dumpit() accessing the cb->data as ops, which we want to change in a later genl patch. Signed-off-by: Johannes Berg Signed-off-by: David S. Miller --- include/linux/genl_magic_func.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h index 83f81ac53282..6cb82301d8e9 100644 --- a/include/linux/genl_magic_func.h +++ b/include/linux/genl_magic_func.h @@ -233,7 +233,6 @@ const char *CONCAT_(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd) { \ handler \ .cmd = op_name, \ - .policy = CONCAT_(GENL_MAGIC_FAMILY, _tla_nl_policy), \ }, #define ZZZ_genl_ops CONCAT_(GENL_MAGIC_FAMILY, _genl_ops) @@ -290,7 +289,8 @@ static struct genl_family ZZZ_genl_family __ro_after_init = { #ifdef GENL_MAGIC_FAMILY_HDRSZ .hdrsize = NLA_ALIGN(GENL_MAGIC_FAMILY_HDRSZ), #endif - .maxattr = ARRAY_SIZE(drbd_tla_nl_policy)-1, + .maxattr = ARRAY_SIZE(CONCAT_(GENL_MAGIC_FAMILY, _tla_nl_policy))-1, + .policy = CONCAT_(GENL_MAGIC_FAMILY, _tla_nl_policy), .ops = ZZZ_genl_ops, .n_ops = ARRAY_SIZE(ZZZ_genl_ops), .mcgrps = ZZZ_genl_mcgrps, -- cgit v1.2.3 From 0eb69bb9962973f4852bb35b8151332c98741770 Mon Sep 17 00:00:00 2001 From: Eli Britstein Date: Thu, 21 Mar 2019 15:51:40 -0700 Subject: net/mlx5e: Add VLAN ID rewrite fields Add VLAN ID rewrite fields as a pre-step to support this rewrite. Signed-off-by: Eli Britstein Reviewed-by: Roi Dayan Signed-off-by: Saeed Mahameed --- include/linux/mlx5/mlx5_ifc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 3b83288749c6..b0e17c94566c 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -5110,6 +5110,7 @@ enum { MLX5_ACTION_IN_FIELD_OUT_DIPV6_31_0 = 0x14, MLX5_ACTION_IN_FIELD_OUT_SIPV4 = 0x15, MLX5_ACTION_IN_FIELD_OUT_DIPV4 = 0x16, + MLX5_ACTION_IN_FIELD_OUT_FIRST_VID = 0x17, MLX5_ACTION_IN_FIELD_OUT_IPV6_HOPLIMIT = 0x47, }; -- cgit v1.2.3 From 1b72d43237980eab9b6ae6bb8181e51c840377e6 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 21 Mar 2019 16:39:20 +0100 Subject: tick: Remove outgoing CPU from broadcast masks Valentin reported that unplugging a CPU occasionally results in a warning in the tick broadcast code which is triggered when an offline CPU is in the broadcast mask. This happens because the outgoing CPU is not removing itself from the broadcast masks, especially not from the broadcast_force_mask. The removal happens on the control CPU after the outgoing CPU is dead. It's a long standing issue, but the warning is harmless. Rework the hotplug mechanism so that the outgoing CPU removes itself from the broadcast masks after disabling interrupts and removing itself from the online mask. Reported-by: Valentin Schneider Signed-off-by: Thomas Gleixner Tested-by: Valentin Schneider Cc: Frederic Weisbecker Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1903211540180.1784@nanos.tec.linutronix.de --- include/linux/tick.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/tick.h b/include/linux/tick.h index 55388ab45fd4..76acb48acdb7 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -68,6 +68,12 @@ extern void tick_broadcast_control(enum tick_broadcast_mode mode); static inline void tick_broadcast_control(enum tick_broadcast_mode mode) { } #endif /* BROADCAST */ +#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) && defined(CONFIG_HOTPLUG_CPU) +extern void tick_offline_cpu(unsigned int cpu); +#else +static inline void tick_offline_cpu(unsigned int cpu) { } +#endif + #ifdef CONFIG_GENERIC_CLOCKEVENTS extern int tick_broadcast_oneshot_control(enum tick_broadcast_state state); #else -- cgit v1.2.3 From dc05360fee660a9dbe59824b3f7896534210432b Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 22 Mar 2019 08:56:38 -0700 Subject: net: convert rps_needed and rfs_needed to new static branch api We prefer static_branch_unlikely() over static_key_false() these days. Signed-off-by: Eric Dumazet Acked-by: Soheil Hassas Yeganeh Acked-by: Willem de Bruijn Signed-off-by: David S. Miller --- include/linux/netdevice.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 823762291ebf..166fdc0a78b4 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -194,8 +194,8 @@ struct net_device_stats { #ifdef CONFIG_RPS #include -extern struct static_key rps_needed; -extern struct static_key rfs_needed; +extern struct static_key_false rps_needed; +extern struct static_key_false rfs_needed; #endif struct neighbour; -- cgit v1.2.3 From 64ebde5b0fdb69fc4061bea0de661421af54f918 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jan=20Kundr=C3=A1t?= Date: Thu, 7 Mar 2019 14:30:13 +0100 Subject: gpiolib: export devprop_gpiochip_set_names() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This function is needed in mcp23s08. That driver is a special snowflake because it supports several hardware chips as a single "GPIO chip" under Linux. Signed-off-by: Jan Kundrát Cc: Linus Walleij Cc: Phil Reid Acked-by: Mika Westerberg Signed-off-by: Linus Walleij --- include/linux/gpio/driver.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 01497910f023..951be1715c12 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -614,6 +614,9 @@ struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *chip, u16 hwnum, enum gpiod_flags flags); void gpiochip_free_own_desc(struct gpio_desc *desc); +void devprop_gpiochip_set_names(struct gpio_chip *chip, + const struct fwnode_handle *fwnode); + #else /* CONFIG_GPIOLIB */ static inline struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc) -- cgit v1.2.3 From 24f7c45fdb2a17ef6ad3142e9a8ba4066ac674a2 Mon Sep 17 00:00:00 2001 From: Ondrej Mosnacek Date: Mon, 25 Mar 2019 09:05:35 +0100 Subject: LSM: lsm_hooks.h - fix missing colon in docstring Apparently without it it is incorrect syntax and causes a warning about undocumented struct field. Fixes: b230d5aba2d1 ("LSM: add new hook for kernfs node initialization") Reported-by: kbuild test robot Signed-off-by: Ondrej Mosnacek Signed-off-by: Paul Moore --- include/linux/lsm_hooks.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 0dd5bda719e6..b987dc282d63 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -447,7 +447,7 @@ * * Security hooks for kernfs node operations * - * @kernfs_init_security + * @kernfs_init_security: * Initialize the security context of a newly created kernfs node based * on its own and its parent's attributes. * -- cgit v1.2.3 From 4d537f37e0d39f64687be71087dca607ee507f5a Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Thu, 21 Mar 2019 10:27:56 +0800 Subject: usb: introduce usb_ep_type_string() function In some places, the code prints a human-readable USB endpoint transfer type (e.g. "bulk"). This involves a switch statement sometimes wrapped around in ({ ... }) block leading to code repetition. To make this scenario easier, here introduces usb_ep_type_string() function, which returns a human-readable name of provided endpoint type. It also changes a few places switch was used to use this new function. Signed-off-by: Chunfeng Yun Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/ch9.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h index 523aa088f6ab..da82606be605 100644 --- a/include/linux/usb/ch9.h +++ b/include/linux/usb/ch9.h @@ -36,6 +36,14 @@ #include #include +/** + * usb_ep_type_string() - Returns human readable-name of the endpoint type. + * @ep_type: The endpoint type to return human-readable name for. If it's not + * any of the types: USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT}, + * usually got by usb_endpoint_type(), the string 'unknown' will be returned. + */ +extern const char *usb_ep_type_string(int ep_type); + /** * usb_speed_string() - Returns human readable-name of the speed. * @speed: The speed to return human-readable name for. If it's not -- cgit v1.2.3 From b699cce1604e828f19c39845252626eb78cdf38a Mon Sep 17 00:00:00 2001 From: Neeraj Upadhyay Date: Mon, 11 Mar 2019 17:28:03 +0530 Subject: rcu: Do a single rhp->func read in rcu_head_after_call_rcu() The rcu_head_after_call_rcu() function reads the rhp->func pointer twice, which can result in a false-positive WARN_ON_ONCE() if the callback were passed to call_rcu() between the two reads. Although racing rcu_head_after_call_rcu() with call_rcu() is to be a dubious use case (the return value is not reliable in that case), intermittent and irreproducible warnings are also quite dubious. This commit therefore uses a single READ_ONCE() to pick up the value of rhp->func once, then tests that value twice, thus guaranteeing consistent processing within rcu_head_after_call_rcu()(). Neverthless, racing rcu_head_after_call_rcu() with call_rcu() is still a dubious use case. Signed-off-by: Neeraj Upadhyay [ paulmck: Add blank line after declaration per checkpatch.pl. ] Signed-off-by: Paul E. McKenney --- include/linux/rcupdate.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 6cdb1db776cf..922bb6848813 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -878,9 +878,11 @@ static inline void rcu_head_init(struct rcu_head *rhp) static inline bool rcu_head_after_call_rcu(struct rcu_head *rhp, rcu_callback_t f) { - if (READ_ONCE(rhp->func) == f) + rcu_callback_t func = READ_ONCE(rhp->func); + + if (func == f) return true; - WARN_ON_ONCE(READ_ONCE(rhp->func) != (rcu_callback_t)~0L); + WARN_ON_ONCE(func != (rcu_callback_t)~0L); return false; } -- cgit v1.2.3 From f5ad3991493c69d203d42b94d32349b54c58a3f1 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Wed, 13 Feb 2019 13:54:37 -0800 Subject: srcu: Remove cleanup_srcu_struct_quiesced() The cleanup_srcu_struct_quiesced() function was added because NVME used WQ_MEM_RECLAIM workqueues and SRCU did not, which meant that NVME workqueues waiting on SRCU workqueues could result in deadlocks during low-memory conditions. However, SRCU now also has WQ_MEM_RECLAIM workqueues, so there is no longer a potential for deadlock. Furthermore, it turns out to be extremely hard to use cleanup_srcu_struct_quiesced() correctly due to the fact that SRCU callback invocation accesses the srcu_struct structure's per-CPU data area just after callbacks are invoked. Therefore, the usual practice of using srcu_barrier() to wait for callbacks to be invoked before invoking cleanup_srcu_struct_quiesced() fails because SRCU's callback-invocation workqueue handler might be delayed, which can result in cleanup_srcu_struct_quiesced() being invoked (and thus freeing the per-CPU data) before the SRCU's callback-invocation workqueue handler is finished using that per-CPU data. Nor is this a theoretical problem: KASAN emitted use-after-free warnings because of this problem on actual runs. In short, NVME can now safely invoke cleanup_srcu_struct(), which avoids the use-after-free scenario. And cleanup_srcu_struct_quiesced() is quite difficult to use safely. This commit therefore removes cleanup_srcu_struct_quiesced(), switching its sole user back to cleanup_srcu_struct(). This effectively reverts the following pair of commits: f7194ac32ca2 ("srcu: Add cleanup_srcu_struct_quiesced()") 4317228ad9b8 ("nvme: Avoid flush dependency in delete controller flow") Reported-by: Bart Van Assche Signed-off-by: Paul E. McKenney Reviewed-by: Bart Van Assche Tested-by: Bart Van Assche --- include/linux/srcu.h | 36 +----------------------------------- 1 file changed, 1 insertion(+), 35 deletions(-) (limited to 'include/linux') diff --git a/include/linux/srcu.h b/include/linux/srcu.h index c495b2d51569..e432cc92c73d 100644 --- a/include/linux/srcu.h +++ b/include/linux/srcu.h @@ -56,45 +56,11 @@ struct srcu_struct { }; void call_srcu(struct srcu_struct *ssp, struct rcu_head *head, void (*func)(struct rcu_head *head)); -void _cleanup_srcu_struct(struct srcu_struct *ssp, bool quiesced); +void cleanup_srcu_struct(struct srcu_struct *ssp); int __srcu_read_lock(struct srcu_struct *ssp) __acquires(ssp); void __srcu_read_unlock(struct srcu_struct *ssp, int idx) __releases(ssp); void synchronize_srcu(struct srcu_struct *ssp); -/** - * cleanup_srcu_struct - deconstruct a sleep-RCU structure - * @ssp: structure to clean up. - * - * Must invoke this after you are finished using a given srcu_struct that - * was initialized via init_srcu_struct(), else you leak memory. - */ -static inline void cleanup_srcu_struct(struct srcu_struct *ssp) -{ - _cleanup_srcu_struct(ssp, false); -} - -/** - * cleanup_srcu_struct_quiesced - deconstruct a quiesced sleep-RCU structure - * @ssp: structure to clean up. - * - * Must invoke this after you are finished using a given srcu_struct that - * was initialized via init_srcu_struct(), else you leak memory. Also, - * all grace-period processing must have completed. - * - * "Completed" means that the last synchronize_srcu() and - * synchronize_srcu_expedited() calls must have returned before the call - * to cleanup_srcu_struct_quiesced(). It also means that the callback - * from the last call_srcu() must have been invoked before the call to - * cleanup_srcu_struct_quiesced(), but you can use srcu_barrier() to help - * with this last. Violating these rules will get you a WARN_ON() splat - * (with high probability, anyway), and will also cause the srcu_struct - * to be leaked. - */ -static inline void cleanup_srcu_struct_quiesced(struct srcu_struct *ssp) -{ - _cleanup_srcu_struct(ssp, true); -} - #ifdef CONFIG_DEBUG_LOCK_ALLOC /** -- cgit v1.2.3 From 733e4467dd068922d64e8b42530ea9b2784175dd Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 26 Feb 2019 23:49:02 +0300 Subject: LSM: fix documentation for sb_copy_data hook The @type argument of the sb_copy_data hook was removed in the commit "LSM/SELinux: Interfaces to allow FS to control mount options" (e0007529893c). This commit removes the description of the @type argument from the LSM documentation. Signed-off-by: Denis Efremov Acked-by: Kees Cook Acked-by: Casey Schaufler Signed-off-by: James Morris --- include/linux/lsm_hooks.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index a9b8ff578b6b..a4b1966f5c30 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -127,7 +127,6 @@ * options cleanly (a filesystem may modify the data e.g. with strsep()). * This also allows the original mount data to be stripped of security- * specific options to avoid having to make filesystems aware of them. - * @type the type of filesystem being mounted. * @orig the original mount data copied from userspace. * @copy copied data which will be passed to the security module. * Returns 0 if the copy was successful. -- cgit v1.2.3 From 5f4b97555c2e54bc5555be9d8a14ac07ddf82345 Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 26 Feb 2019 23:49:03 +0300 Subject: LSM: fix documentation for the syslog hook The syslog hook was changed in the commit "capabilities/syslog: open code cap_syslog logic to fix build failure" (12b3052c3ee8). The argument @from_file was removed from the hook. This patch updates the documentation for the syslog hook accordingly. Signed-off-by: Denis Efremov Acked-by: Kees Cook Acked-by: Casey Schaufler Signed-off-by: James Morris --- include/linux/lsm_hooks.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index a4b1966f5c30..37713f7da14e 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -1291,8 +1291,7 @@ * Check permission before accessing the kernel message ring or changing * logging to the console. * See the syslog(2) manual page for an explanation of the @type values. - * @type contains the type of action. - * @from_file indicates the context of action (if it came from /proc). + * @type contains the SYSLOG_ACTION_* constant from * Return 0 if permission is granted. * @settime: * Check permission to change the system time. -- cgit v1.2.3 From 68b3edbd9fd852e7fb5aae0f84f99bf2b19b97cb Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 26 Feb 2019 23:49:04 +0300 Subject: LSM: fix documentation for the socket_post_create hook This patch slightly fixes the documentation for the socket_post_create hook. The documentation states that i_security field is accessible through inode field of socket structure (i.e., 'sock->inode->i_security'). There is no inode field in the socket structure. The i_security field is accessible through SOCK_INODE macro. The patch updates the documentation to reflect this. Signed-off-by: Denis Efremov Acked-by: Kees Cook Acked-by: Casey Schaufler Signed-off-by: James Morris --- include/linux/lsm_hooks.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 37713f7da14e..85beba1cf03d 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -768,9 +768,9 @@ * socket structure, but rather, the socket security information is stored * in the associated inode. Typically, the inode alloc_security hook will * allocate and and attach security information to - * sock->inode->i_security. This hook may be used to update the - * sock->inode->i_security field with additional information that wasn't - * available when the inode was allocated. + * SOCK_INODE(sock)->i_security. This hook may be used to update the + * SOCK_INODE(sock)->i_security field with additional information that + * wasn't available when the inode was allocated. * @sock contains the newly created socket structure. * @family contains the requested protocol family. * @type contains the requested communications type. -- cgit v1.2.3 From a890e6378201626d1723f4f2b92a017e141c1144 Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 26 Feb 2019 23:49:05 +0300 Subject: LSM: fix documentation for the task_setscheduler hook The task_setscheduler hook was changed in the commit "security: remove unused parameter from security_task_setscheduler()" (b0ae19811375). The arguments @policy, @lp were removed from the hook. This patch updates the documentation accordingly. Signed-off-by: Denis Efremov Acked-by: Kees Cook Acked-by: Casey Schaufler Signed-off-by: James Morris --- include/linux/lsm_hooks.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 85beba1cf03d..866aa62e900c 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -671,10 +671,8 @@ * Return 0 if permission is granted. * @task_setscheduler: * Check permission before setting scheduling policy and/or parameters of - * process @p based on @policy and @lp. + * process @p. * @p contains the task_struct for process. - * @policy contains the scheduling policy. - * @lp contains the scheduling parameters. * Return 0 if permission is granted. * @task_getscheduler: * Check permission before obtaining scheduling information for process -- cgit v1.2.3 From 2f991d7ae86a81eba7e564a0f054d9e5dbfbfe34 Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 26 Feb 2019 23:49:06 +0300 Subject: LSM: fix documentation for the socket_getpeersec_dgram hook The socket_getpeersec_dgram hook was changed in the commit "[AF_UNIX]: Kernel memory leak fix for af_unix datagram getpeersec patch" (dc49c1f94e34). The arguments @secdata and @seclen were changed to @sock and @secid. This patch updates the documentation accordingly. Signed-off-by: Denis Efremov Acked-by: Kees Cook Acked-by: Casey Schaufler Signed-off-by: James Morris --- include/linux/lsm_hooks.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 866aa62e900c..69b1209038ec 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -873,13 +873,13 @@ * @socket_getpeersec_dgram: * This hook allows the security module to provide peer socket security * state for udp sockets on a per-packet basis to userspace via - * getsockopt SO_GETPEERSEC. The application must first have indicated - * the IP_PASSSEC option via getsockopt. It can then retrieve the + * getsockopt SO_GETPEERSEC. The application must first have indicated + * the IP_PASSSEC option via getsockopt. It can then retrieve the * security state returned by this hook for a packet via the SCM_SECURITY * ancillary message type. - * @skb is the skbuff for the packet being queried - * @secdata is a pointer to a buffer in which to copy the security data - * @seclen is the maximum length for @secdata + * @sock contains the peer socket. May be NULL. + * @skb is the sk_buff for the packet being queried. May be NULL. + * @secid pointer to store the secid of the packet. * Return 0 on success, error on failure. * @sk_alloc_security: * Allocate and attach a security structure to the sk->sk_security field, -- cgit v1.2.3 From 6b6b6476a32f763843c9a3c91dff4d91faa1267e Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 26 Feb 2019 23:49:07 +0300 Subject: LSM: fix documentation for the path_chmod hook The path_chmod hook was changed in the commit "switch security_path_chmod() to struct path *" (cdcf116d44e7). The argument @mnt was removed from the hook, @dentry was changed to @path. This patch updates the documentation accordingly. Signed-off-by: Denis Efremov Acked-by: Kees Cook Acked-by: Casey Schaufler Signed-off-by: James Morris --- include/linux/lsm_hooks.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 69b1209038ec..1a4e4dda5235 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -319,10 +319,11 @@ * @new_dentry contains the dentry structure of the new link. * Return 0 if permission is granted. * @path_chmod: - * Check for permission to change DAC's permission of a file or directory. - * @dentry contains the dentry structure. - * @mnt contains the vfsmnt structure. - * @mode contains DAC's mode. + * Check for permission to change a mode of the file @path. The new + * mode is specified in @mode. + * @path contains the path structure of the file to change the mode. + * @mode contains the new DAC's permission, which is a bitmask of + * constants from * Return 0 if permission is granted. * @path_chown: * Check for permission to change owner/group of a file or directory. -- cgit v1.2.3 From 5fdd268f6eb8e84f04ae2458cc640f7c7331dd19 Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 26 Feb 2019 23:49:08 +0300 Subject: LSM: fix documentation for the audit_* hooks This patch updates the documentation for the audit_* hooks to use the same arguments names as in the hook's declarations. Signed-off-by: Denis Efremov Acked-by: Kees Cook Acked-by: Casey Schaufler Signed-off-by: James Morris --- include/linux/lsm_hooks.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 1a4e4dda5235..2f0990f0ed64 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -1345,9 +1345,9 @@ * -EINVAL in case of an invalid rule. * * @audit_rule_known: - * Specifies whether given @rule contains any fields related to + * Specifies whether given @krule contains any fields related to * current LSM. - * @rule contains the audit rule of interest. + * @krule contains the audit rule of interest. * Return 1 in case of relation found, 0 otherwise. * * @audit_rule_match: @@ -1356,13 +1356,13 @@ * @secid contains the security id in question. * @field contains the field which relates to current LSM. * @op contains the operator that will be used for matching. - * @rule points to the audit rule that will be checked against. + * @lrule points to the audit rule that will be checked against. * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure. * * @audit_rule_free: * Deallocate the LSM audit rule structure previously allocated by * audit_rule_init. - * @rule contains the allocated rule + * @lsmrule contains the allocated rule * * @inode_invalidate_secctx: * Notify the security module that it must revalidate the security context -- cgit v1.2.3 From ab012bc83615e843f14d6ba2556f52c60ecf121f Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 26 Feb 2019 23:49:09 +0300 Subject: LSM: fix documentation for the msg_queue_* hooks The msg_queue_* hooks were changed in the commit "msg/security: Pass kern_ipc_perm not msg_queue into the msg_queue security hooks" (d8c6e8543294). The type of the argument msq was changed from msq_queue to kern_ipc_perm. This patch updates the documentation for the hooks accordingly. Signed-off-by: Denis Efremov Acked-by: Kees Cook Acked-by: Casey Schaufler Signed-off-by: James Morris --- include/linux/lsm_hooks.h | 38 +++++++++++++++++++------------------- 1 file changed, 19 insertions(+), 19 deletions(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 2f0990f0ed64..8ef4b3b89daa 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -1111,41 +1111,41 @@ * * @msg_queue_alloc_security: * Allocate and attach a security structure to the - * msq->q_perm.security field. The security field is initialized to + * @perm->security field. The security field is initialized to * NULL when the structure is first created. - * @msq contains the message queue structure to be modified. + * @perm contains the IPC permissions of the message queue. * Return 0 if operation was successful and permission is granted. * @msg_queue_free_security: - * Deallocate security structure for this message queue. - * @msq contains the message queue structure to be modified. + * Deallocate security field @perm->security for the message queue. + * @perm contains the IPC permissions of the message queue. * @msg_queue_associate: * Check permission when a message queue is requested through the - * msgget system call. This hook is only called when returning the + * msgget system call. This hook is only called when returning the * message queue identifier for an existing message queue, not when a * new message queue is created. - * @msq contains the message queue to act upon. + * @perm contains the IPC permissions of the message queue. * @msqflg contains the operation control flags. * Return 0 if permission is granted. * @msg_queue_msgctl: * Check permission when a message control operation specified by @cmd - * is to be performed on the message queue @msq. - * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO. - * @msq contains the message queue to act upon. May be NULL. + * is to be performed on the message queue with permissions @perm. + * The @perm may be NULL, e.g. for IPC_INFO or MSG_INFO. + * @perm contains the IPC permissions of the msg queue. May be NULL. * @cmd contains the operation to be performed. * Return 0 if permission is granted. * @msg_queue_msgsnd: * Check permission before a message, @msg, is enqueued on the message - * queue, @msq. - * @msq contains the message queue to send message to. + * queue with permissions @perm. + * @perm contains the IPC permissions of the message queue. * @msg contains the message to be enqueued. * @msqflg contains operational flags. * Return 0 if permission is granted. * @msg_queue_msgrcv: * Check permission before a message, @msg, is removed from the message - * queue, @msq. The @target task structure contains a pointer to the + * queue. The @target task structure contains a pointer to the * process that will be receiving the message (not equal to the current * process when inline receives are being performed). - * @msq contains the message queue to retrieve message from. + * @perm contains the IPC permissions of the message queue. * @msg contains the message destination. * @target contains the task structure for recipient process. * @type contains the type of message requested. @@ -1637,13 +1637,13 @@ union security_list_options { int (*msg_msg_alloc_security)(struct msg_msg *msg); void (*msg_msg_free_security)(struct msg_msg *msg); - int (*msg_queue_alloc_security)(struct kern_ipc_perm *msq); - void (*msg_queue_free_security)(struct kern_ipc_perm *msq); - int (*msg_queue_associate)(struct kern_ipc_perm *msq, int msqflg); - int (*msg_queue_msgctl)(struct kern_ipc_perm *msq, int cmd); - int (*msg_queue_msgsnd)(struct kern_ipc_perm *msq, struct msg_msg *msg, + int (*msg_queue_alloc_security)(struct kern_ipc_perm *perm); + void (*msg_queue_free_security)(struct kern_ipc_perm *perm); + int (*msg_queue_associate)(struct kern_ipc_perm *perm, int msqflg); + int (*msg_queue_msgctl)(struct kern_ipc_perm *perm, int cmd); + int (*msg_queue_msgsnd)(struct kern_ipc_perm *perm, struct msg_msg *msg, int msqflg); - int (*msg_queue_msgrcv)(struct kern_ipc_perm *msq, struct msg_msg *msg, + int (*msg_queue_msgrcv)(struct kern_ipc_perm *perm, struct msg_msg *msg, struct task_struct *target, long type, int mode); -- cgit v1.2.3 From e9220bc8b79aebfaa8bc4fee2e8785618daeb42a Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 26 Feb 2019 23:49:10 +0300 Subject: LSM: fix documentation for the sem_* hooks The sem_* hooks were changed in the commit "sem/security: Pass kern_ipc_perm not sem_array into the sem security hooks" (aefad9593ec5). The type of the argument sma was changed from sem_array to kern_ipc_perm. This patch updates the documentation for the hooks accordingly. Signed-off-by: Denis Efremov Acked-by: Kees Cook Acked-by: Casey Schaufler Signed-off-by: James Morris --- include/linux/lsm_hooks.h | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 8ef4b3b89daa..bd402be091af 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -1190,34 +1190,34 @@ * Security hooks for System V Semaphores * * @sem_alloc_security: - * Allocate and attach a security structure to the sma->sem_perm.security - * field. The security field is initialized to NULL when the structure is + * Allocate and attach a security structure to the @perm->security + * field. The security field is initialized to NULL when the structure is * first created. - * @sma contains the semaphore structure + * @perm contains the IPC permissions of the semaphore. * Return 0 if operation was successful and permission is granted. * @sem_free_security: - * deallocate security struct for this semaphore - * @sma contains the semaphore structure. + * Deallocate security structure @perm->security for the semaphore. + * @perm contains the IPC permissions of the semaphore. * @sem_associate: * Check permission when a semaphore is requested through the semget - * system call. This hook is only called when returning the semaphore + * system call. This hook is only called when returning the semaphore * identifier for an existing semaphore, not when a new one must be * created. - * @sma contains the semaphore structure. + * @perm contains the IPC permissions of the semaphore. * @semflg contains the operation control flags. * Return 0 if permission is granted. * @sem_semctl: * Check permission when a semaphore operation specified by @cmd is to be - * performed on the semaphore @sma. The @sma may be NULL, e.g. for + * performed on the semaphore. The @perm may be NULL, e.g. for * IPC_INFO or SEM_INFO. - * @sma contains the semaphore structure. May be NULL. + * @perm contains the IPC permissions of the semaphore. May be NULL. * @cmd contains the operation to be performed. * Return 0 if permission is granted. * @sem_semop: * Check permissions before performing operations on members of the - * semaphore set @sma. If the @alter flag is nonzero, the semaphore set + * semaphore set. If the @alter flag is nonzero, the semaphore set * may be modified. - * @sma contains the semaphore structure. + * @perm contains the IPC permissions of the semaphore. * @sops contains the operations to perform. * @nsops contains the number of operations to perform. * @alter contains the flag indicating whether changes are to be made. @@ -1654,11 +1654,11 @@ union security_list_options { int (*shm_shmat)(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg); - int (*sem_alloc_security)(struct kern_ipc_perm *sma); - void (*sem_free_security)(struct kern_ipc_perm *sma); - int (*sem_associate)(struct kern_ipc_perm *sma, int semflg); - int (*sem_semctl)(struct kern_ipc_perm *sma, int cmd); - int (*sem_semop)(struct kern_ipc_perm *sma, struct sembuf *sops, + int (*sem_alloc_security)(struct kern_ipc_perm *perm); + void (*sem_free_security)(struct kern_ipc_perm *perm); + int (*sem_associate)(struct kern_ipc_perm *perm, int semflg); + int (*sem_semctl)(struct kern_ipc_perm *perm, int cmd); + int (*sem_semop)(struct kern_ipc_perm *perm, struct sembuf *sops, unsigned nsops, int alter); int (*netlink_send)(struct sock *sk, struct sk_buff *skb); -- cgit v1.2.3 From 9c53cb9d5648e9daacf6a21bcd8bb2919bed3536 Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 26 Feb 2019 23:49:11 +0300 Subject: LSM: fix documentation for the shm_* hooks The shm_* hooks were changed in the commit "shm/security: Pass kern_ipc_perm not shmid_kernel into the shm security hooks" (7191adff2a55). The type of the argument shp was changed from shmid_kernel to kern_ipc_perm. This patch updates the documentation for the hooks accordingly. Signed-off-by: Denis Efremov Acked-by: Kees Cook Acked-by: Casey Schaufler Signed-off-by: James Morris --- include/linux/lsm_hooks.h | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index bd402be091af..ca7b58c94ce8 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -1155,34 +1155,34 @@ * Security hooks for System V Shared Memory Segments * * @shm_alloc_security: - * Allocate and attach a security structure to the shp->shm_perm.security - * field. The security field is initialized to NULL when the structure is + * Allocate and attach a security structure to the @perm->security + * field. The security field is initialized to NULL when the structure is * first created. - * @shp contains the shared memory structure to be modified. + * @perm contains the IPC permissions of the shared memory structure. * Return 0 if operation was successful and permission is granted. * @shm_free_security: - * Deallocate the security struct for this memory segment. - * @shp contains the shared memory structure to be modified. + * Deallocate the security structure @perm->security for the memory segment. + * @perm contains the IPC permissions of the shared memory structure. * @shm_associate: * Check permission when a shared memory region is requested through the - * shmget system call. This hook is only called when returning the shared + * shmget system call. This hook is only called when returning the shared * memory region identifier for an existing region, not when a new shared * memory region is created. - * @shp contains the shared memory structure to be modified. + * @perm contains the IPC permissions of the shared memory structure. * @shmflg contains the operation control flags. * Return 0 if permission is granted. * @shm_shmctl: * Check permission when a shared memory control operation specified by - * @cmd is to be performed on the shared memory region @shp. - * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO. - * @shp contains shared memory structure to be modified. + * @cmd is to be performed on the shared memory region with permissions @perm. + * The @perm may be NULL, e.g. for IPC_INFO or SHM_INFO. + * @perm contains the IPC permissions of the shared memory structure. * @cmd contains the operation to be performed. * Return 0 if permission is granted. * @shm_shmat: * Check permissions prior to allowing the shmat system call to attach the - * shared memory segment @shp to the data segment of the calling process. - * The attaching address is specified by @shmaddr. - * @shp contains the shared memory structure to be modified. + * shared memory segment with permissions @perm to the data segment of the + * calling process. The attaching address is specified by @shmaddr. + * @perm contains the IPC permissions of the shared memory structure. * @shmaddr contains the address to attach memory region to. * @shmflg contains the operational flags. * Return 0 if permission is granted. @@ -1647,11 +1647,11 @@ union security_list_options { struct task_struct *target, long type, int mode); - int (*shm_alloc_security)(struct kern_ipc_perm *shp); - void (*shm_free_security)(struct kern_ipc_perm *shp); - int (*shm_associate)(struct kern_ipc_perm *shp, int shmflg); - int (*shm_shmctl)(struct kern_ipc_perm *shp, int cmd); - int (*shm_shmat)(struct kern_ipc_perm *shp, char __user *shmaddr, + int (*shm_alloc_security)(struct kern_ipc_perm *perm); + void (*shm_free_security)(struct kern_ipc_perm *perm); + int (*shm_associate)(struct kern_ipc_perm *perm, int shmflg); + int (*shm_shmctl)(struct kern_ipc_perm *perm, int cmd); + int (*shm_shmat)(struct kern_ipc_perm *perm, char __user *shmaddr, int shmflg); int (*sem_alloc_security)(struct kern_ipc_perm *perm); -- cgit v1.2.3 From 8d93e952fba216cd0811247f6360d97e0465d5fc Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 26 Feb 2019 23:49:12 +0300 Subject: LSM: lsm_hooks.h: fix documentation format Fix for name mismatch and omitted colons in the security_list_options documentation. Signed-off-by: Denis Efremov Acked-by: Kees Cook Acked-by: Casey Schaufler Signed-off-by: James Morris --- include/linux/lsm_hooks.h | 23 +++++++++-------------- 1 file changed, 9 insertions(+), 14 deletions(-) (limited to 'include/linux') diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index ca7b58c94ce8..a240a3fc5fc4 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -502,7 +502,7 @@ * Return 0 if permission is granted. * @file_lock: * Check permission before performing file locking operations. - * Note: this hook mediates both flock and fcntl style locks. + * Note the hook mediates both flock and fcntl style locks. * @file contains the file structure. * @cmd contains the posix-translated lock operation to perform * (e.g. F_RDLCK, F_WRLCK). @@ -645,12 +645,12 @@ * @p contains the task_struct of process. * @nice contains the new nice value. * Return 0 if permission is granted. - * @task_setioprio + * @task_setioprio: * Check permission before setting the ioprio value of @p to @ioprio. * @p contains the task_struct of process. * @ioprio contains the new ioprio value * Return 0 if permission is granted. - * @task_getioprio + * @task_getioprio: * Check permission before getting the ioprio value of @p. * @p contains the task_struct of process. * Return 0 if permission is granted. @@ -680,7 +680,7 @@ * @p. * @p contains the task_struct for process. * Return 0 if permission is granted. - * @task_movememory + * @task_movememory: * Check permission before moving memory owned by process @p. * @p contains the task_struct for process. * Return 0 if permission is granted. @@ -904,9 +904,9 @@ * @secmark_relabel_packet: * check if the process should be allowed to relabel packets to * the given secid - * @security_secmark_refcount_inc + * @secmark_refcount_inc: * tells the LSM to increment the number of secmark labeling rules loaded - * @security_secmark_refcount_dec + * @secmark_refcount_dec: * tells the LSM to decrement the number of secmark labeling rules loaded * @req_classify_flow: * Sets the flow's sid to the openreq sid. @@ -1294,8 +1294,8 @@ * Return 0 if permission is granted. * @settime: * Check permission to change the system time. - * struct timespec64 is defined in include/linux/time64.h and timezone - * is defined in include/linux/time.h + * struct timespec64 is defined in and timezone + * is defined in * @ts contains new time * @tz contains new timezone * Return 0 if permission is granted. @@ -1337,7 +1337,7 @@ * @audit_rule_init: * Allocate and initialize an LSM audit rule structure. * @field contains the required Audit action. - * Fields flags are defined in include/linux/audit.h + * Fields flags are defined in * @op contains the operator the rule uses. * @rulestr contains the context where the rule will be applied to. * @lsmrule contains a pointer to receive the result. @@ -1375,9 +1375,7 @@ * this hook to initialize the security context in its incore inode to the * value provided by the server for the file when the server returned the * file's attributes to the client. - * * Must be called with inode->i_mutex locked. - * * @inode we wish to set the security context of. * @ctx contains the string which we wish to set in the inode. * @ctxlen contains the length of @ctx. @@ -1390,9 +1388,7 @@ * this hook to change the security context in its incore inode and on the * backing filesystem to a value provided by the client on a SETATTR * operation. - * * Must be called with inode->i_mutex locked. - * * @dentry contains the inode we wish to set the security context of. * @ctx contains the string which we wish to set in the inode. * @ctxlen contains the length of @ctx. @@ -1400,7 +1396,6 @@ * @inode_getsecctx: * On success, returns 0 and fills out @ctx and @ctxlen with the security * context for the given @inode. - * * @inode we wish to get the security context of. * @ctx is a pointer in which to place the allocated security context. * @ctxlen points to the place to put the length of @ctx. -- cgit v1.2.3 From f6ac28d61675e05cb1227cbba44ff538f8671e54 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sat, 2 Mar 2019 14:47:29 +0100 Subject: i2c: apply coding style for struct i2c_adapter Signed-off-by: Wolfram Sang Reviewed-by: Simon Horman Reviewed-by: Andy Shevchenko Signed-off-by: Wolfram Sang --- include/linux/i2c.h | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 383510b4f083..758a6db864c9 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -517,20 +517,23 @@ i2c_register_board_info(int busnum, struct i2c_board_info const *info, * Documentation file Documentation/i2c/fault-codes. */ struct i2c_algorithm { - /* If an adapter algorithm can't do I2C-level access, set master_xfer - to NULL. If an adapter algorithm can do SMBus access, set - smbus_xfer. If set to NULL, the SMBus protocol is simulated - using common I2C messages */ - /* master_xfer should return the number of messages successfully - processed, or a negative value on error */ + /* + * If an adapter algorithm can't do I2C-level access, set master_xfer + * to NULL. If an adapter algorithm can do SMBus access, set + * smbus_xfer. If set to NULL, the SMBus protocol is simulated + * using common I2C messages. + * + * master_xfer should return the number of messages successfully + * processed, or a negative value on error + */ int (*master_xfer)(struct i2c_adapter *adap, struct i2c_msg *msgs, int num); - int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, - unsigned short flags, char read_write, - u8 command, int size, union i2c_smbus_data *data); + int (*smbus_xfer)(struct i2c_adapter *adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, union i2c_smbus_data *data); /* To determine what the adapter supports */ - u32 (*functionality) (struct i2c_adapter *); + u32 (*functionality)(struct i2c_adapter *adap); #if IS_ENABLED(CONFIG_I2C_SLAVE) int (*reg_slave)(struct i2c_client *client); -- cgit v1.2.3 From dc7fe518b0493faa0af0568d6d8c2a33c00f58d0 Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Sun, 17 Mar 2019 12:11:14 +0200 Subject: overflow: Fix -Wtype-limits compilation warnings Attempt to use check_shl_overflow() with inputs of unsigned type produces the following compilation warnings. drivers/infiniband/hw/mlx5/qp.c: In function _set_user_rq_size_: ./include/linux/overflow.h:230:6: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] _s >= 0 && _s < 8 * sizeof(*d) ? _s : 0; \ ^~ drivers/infiniband/hw/mlx5/qp.c:5820:6: note: in expansion of macro _check_shl_overflow_ if (check_shl_overflow(rwq->wqe_count, rwq->wqe_shift, &rwq->buf_size)) ^~~~~~~~~~~~~~~~~~ ./include/linux/overflow.h:232:26: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] (_to_shift != _s || *_d < 0 || _a < 0 || \ ^ drivers/infiniband/hw/mlx5/qp.c:5820:6: note: in expansion of macro _check_shl_overflow_ if (check_shl_overflow(rwq->wqe_count, rwq->wqe_shift, &rwq->buf_size)) ^~~~~~~~~~~~~~~~~~ ./include/linux/overflow.h:232:36: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] (_to_shift != _s || *_d < 0 || _a < 0 || \ ^ drivers/infiniband/hw/mlx5/qp.c:5820:6: note: in expansion of macro _check_shl_overflow_ if (check_shl_overflow(rwq->wqe_count, rwq->wqe_shift,&rwq->buf_size)) ^~~~~~~~~~~~~~~~~~ Fixes: 0c66847793d1 ("overflow.h: Add arithmetic shift helper") Reviewed-by: Bart Van Assche Acked-by: Kees Cook Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- include/linux/overflow.h | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/overflow.h b/include/linux/overflow.h index 40b48e2133cb..15eb85de9226 100644 --- a/include/linux/overflow.h +++ b/include/linux/overflow.h @@ -36,6 +36,12 @@ #define type_max(T) ((T)((__type_half_max(T) - 1) + __type_half_max(T))) #define type_min(T) ((T)((T)-type_max(T)-(T)1)) +/* + * Avoids triggering -Wtype-limits compilation warning, + * while using unsigned data types to check a < 0. + */ +#define is_non_negative(a) ((a) > 0 || (a) == 0) +#define is_negative(a) (!(is_non_negative(a))) #ifdef COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW /* @@ -227,10 +233,10 @@ typeof(d) _d = d; \ u64 _a_full = _a; \ unsigned int _to_shift = \ - _s >= 0 && _s < 8 * sizeof(*d) ? _s : 0; \ + is_non_negative(_s) && _s < 8 * sizeof(*d) ? _s : 0; \ *_d = (_a_full << _to_shift); \ - (_to_shift != _s || *_d < 0 || _a < 0 || \ - (*_d >> _to_shift) != _a); \ + (_to_shift != _s || is_negative(*_d) || is_negative(_a) || \ + (*_d >> _to_shift) != _a); \ }) /** -- cgit v1.2.3 From 8db5da0b8618df79eceea99672e205d4a2a6309e Mon Sep 17 00:00:00 2001 From: Mimi Zohar Date: Sun, 27 Jan 2019 19:03:45 -0500 Subject: x86/ima: require signed kernel modules Have the IMA architecture specific policy require signed kernel modules on systems with secure boot mode enabled; and coordinate the different signature verification methods, so only one signature is required. Requiring appended kernel module signatures may be configured, enabled on the boot command line, or with this patch enabled in secure boot mode. This patch defines set_module_sig_enforced(). To coordinate between appended kernel module signatures and IMA signatures, only define an IMA MODULE_CHECK policy rule if CONFIG_MODULE_SIG is not enabled. A custom IMA policy may still define and require an IMA signature. Signed-off-by: Mimi Zohar Reviewed-by: Luis Chamberlain Acked-by: Jessica Yu --- include/linux/module.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/module.h b/include/linux/module.h index 5bf5dcd91009..73ee2b10e816 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -676,6 +676,7 @@ static inline bool is_livepatch_module(struct module *mod) #endif /* CONFIG_LIVEPATCH */ bool is_module_sig_enforced(void); +void set_module_sig_enforced(void); #else /* !CONFIG_MODULES... */ @@ -796,6 +797,10 @@ static inline bool is_module_sig_enforced(void) return false; } +static inline void set_module_sig_enforced(void) +{ +} + /* Dereference module function descriptor */ static inline void *dereference_module_function_descriptor(struct module *mod, void *ptr) -- cgit v1.2.3 From 1e55b609b983f99290d210bf6578cb1a2eb905d2 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Tue, 12 Mar 2019 00:10:44 +0200 Subject: mei: adjust the copyright notice in the files. Use unified version of the copyright notice in the files Update copyright years according the year the files were touched, except this patch and SPDX conversions. Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- include/linux/mei_cl_bus.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h index 03b6ba2a63f8..52aa4821093a 100644 --- a/include/linux/mei_cl_bus.h +++ b/include/linux/mei_cl_bus.h @@ -1,4 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2013-2016, Intel Corporation. All rights reserved. + */ #ifndef _LINUX_MEI_CL_BUS_H #define _LINUX_MEI_CL_BUS_H -- cgit v1.2.3 From df453700e8d81b1bdafdf684365ee2b9431fb702 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 27 Mar 2019 12:40:33 -0700 Subject: inet: switch IP ID generator to siphash According to Amit Klein and Benny Pinkas, IP ID generation is too weak and might be used by attackers. Even with recent net_hash_mix() fix (netns: provide pure entropy for net_hash_mix()) having 64bit key and Jenkins hash is risky. It is time to switch to siphash and its 128bit keys. Signed-off-by: Eric Dumazet Reported-by: Amit Klein Reported-by: Benny Pinkas Signed-off-by: David S. Miller --- include/linux/siphash.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/siphash.h b/include/linux/siphash.h index fa7a6b9cedbf..bf21591a9e5e 100644 --- a/include/linux/siphash.h +++ b/include/linux/siphash.h @@ -21,6 +21,11 @@ typedef struct { u64 key[2]; } siphash_key_t; +static inline bool siphash_key_is_zero(const siphash_key_t *key) +{ + return !(key->key[0] | key->key[1]); +} + u64 __siphash_aligned(const void *data, size_t len, const siphash_key_t *key); #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS u64 __siphash_unaligned(const void *data, size_t len, const siphash_key_t *key); -- cgit v1.2.3 From eaedc0d379da6d1157a4f274d186001d11615b2b Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Thu, 14 Feb 2019 15:54:57 +0000 Subject: ARM: at91: pm: add ULP1 support for SAM9X60 Add ULP1 support for SAM9X60. In pm_suspend.S enable RC oscillator in PMC if it is not enabled. At resume the state before suspend is restored. Signed-off-by: Claudiu Beznea Acked-by: Stephen Boyd Signed-off-by: Alexandre Belloni Signed-off-by: Ludovic Desroches --- include/linux/clk/at91_pmc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/clk/at91_pmc.h b/include/linux/clk/at91_pmc.h index 931ab05f771d..bd3a65c0bad3 100644 --- a/include/linux/clk/at91_pmc.h +++ b/include/linux/clk/at91_pmc.h @@ -159,6 +159,7 @@ #define AT91_PMC_FSMR 0x70 /* Fast Startup Mode Register */ #define AT91_PMC_FSTT(n) BIT(n) +#define AT91_PMC_RTTAL BIT(16) #define AT91_PMC_RTCAL BIT(17) /* RTC Alarm Enable */ #define AT91_PMC_USBAL BIT(18) /* USB Resume Enable */ #define AT91_PMC_SDMMC_CD BIT(19) /* SDMMC Card Detect Enable */ -- cgit v1.2.3 From 7a8e61f8478639072d402a26789055a4a4de8f77 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 23 Mar 2019 11:36:19 +0100 Subject: timekeeping: Force upper bound for setting CLOCK_REALTIME Several people reported testing failures after setting CLOCK_REALTIME close to the limits of the kernel internal representation in nanoseconds, i.e. year 2262. The failures are exposed in subsequent operations, i.e. when arming timers or when the advancing CLOCK_MONOTONIC makes the calculation of CLOCK_REALTIME overflow into negative space. Now people start to paper over the underlying problem by clamping calculations to the valid range, but that's just wrong because such workarounds will prevent detection of real issues as well. It is reasonable to force an upper bound for the various methods of setting CLOCK_REALTIME. Year 2262 is the absolute upper bound. Assume a maximum uptime of 30 years which is plenty enough even for esoteric embedded systems. That results in an upper bound of year 2232 for setting the time. Once that limit is reached in reality this limit is only a small part of the problem space. But until then this stops people from trying to paper over the problem at the wrong places. Reported-by: Xiongfeng Wang Reported-by: Hongbo Yao Signed-off-by: Thomas Gleixner Cc: John Stultz Cc: Stephen Boyd Cc: Miroslav Lichvar Cc: Arnd Bergmann Cc: Richard Cochran Cc: Peter Zijlstra Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1903231125480.2157@nanos.tec.linutronix.de --- include/linux/time64.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'include/linux') diff --git a/include/linux/time64.h b/include/linux/time64.h index f38d382ffec1..a620ee610b9f 100644 --- a/include/linux/time64.h +++ b/include/linux/time64.h @@ -33,6 +33,17 @@ struct itimerspec64 { #define KTIME_MAX ((s64)~((u64)1 << 63)) #define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC) +/* + * Limits for settimeofday(): + * + * To prevent setting the time close to the wraparound point time setting + * is limited so a reasonable uptime can be accomodated. Uptime of 30 years + * should be really sufficient, which means the cutoff is 2232. At that + * point the cutoff is just a small part of the larger problem. + */ +#define TIME_UPTIME_SEC_MAX (30LL * 365 * 24 *3600) +#define TIME_SETTOD_SEC_MAX (KTIME_SEC_MAX - TIME_UPTIME_SEC_MAX) + static inline int timespec64_equal(const struct timespec64 *a, const struct timespec64 *b) { @@ -100,6 +111,16 @@ static inline bool timespec64_valid_strict(const struct timespec64 *ts) return true; } +static inline bool timespec64_valid_settod(const struct timespec64 *ts) +{ + if (!timespec64_valid(ts)) + return false; + /* Disallow values which cause overflow issues vs. CLOCK_REALTIME */ + if ((unsigned long long)ts->tv_sec >= TIME_SETTOD_SEC_MAX) + return false; + return true; +} + /** * timespec64_to_ns - Convert timespec64 to nanoseconds * @ts: pointer to the timespec64 variable to be converted -- cgit v1.2.3 From 1c7651f43777cdd59c1aaa82c87324d3e7438c7b Mon Sep 17 00:00:00 2001 From: Eugene Loh Date: Mon, 25 Feb 2019 11:59:58 -0800 Subject: kallsyms: store type information in its own array When a module is loaded, its symbols' Elf_Sym information is stored in a symtab. Further, type information is also captured. Since Elf_Sym has no type field, historically the st_info field has been hijacked for storing type: st_info was overwritten. commit 5439c985c5a83a8419f762115afdf560ab72a452 ("module: Overwrite st_size instead of st_info") changes that practice, as its one-liner indicates. Unfortunately, this change overwrites symbol size, information that a tool like DTrace expects to find. Allocate a typetab array to store type information so that no Elf_Sym field needs to be overwritten. Fixes: 5439c985c5a8 ("module: Overwrite st_size instead of st_info") Signed-off-by: Eugene Loh Reviewed-by: Nick Alcock [jeyu: renamed typeoff -> typeoffs ] Signed-off-by: Jessica Yu --- include/linux/module.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/module.h b/include/linux/module.h index 5bf5dcd91009..3abe8176df98 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -331,6 +331,7 @@ struct mod_kallsyms { Elf_Sym *symtab; unsigned int num_symtab; char *strtab; + char *typetab; }; #ifdef CONFIG_LIVEPATCH -- cgit v1.2.3 From 5dc37bb9b03586e8fdeb47d25e8d2a0399984936 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Thu, 28 Mar 2019 13:56:36 +0100 Subject: net: replace ndo_get_devlink with ndo_get_devlink_port Follow-up patch is going to need a devlink port instance according to a netdev. Devlink port instance should be always available when devlink is used. So change the recently introduced ndo_get_devlink to ndo_get_devlink_port. With that, adjust the wrapper for the only user to get devlink pointer. Signed-off-by: Jiri Pirko Reviewed-by: Michal Kubecek Reviewed-by: Florian Fainelli Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller --- include/linux/netdevice.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 166fdc0a78b4..78f5ec4ebf64 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1250,8 +1250,8 @@ struct devlink; * that got dropped are freed/returned via xdp_return_frame(). * Returns negative number, means general error invoking ndo, meaning * no frames were xmit'ed and core-caller will free all frames. - * struct devlink *(*ndo_get_devlink)(struct net_device *dev); - * Get devlink instance associated with a given netdev. + * struct devlink_port *(*ndo_get_devlink_port)(struct net_device *dev); + * Get devlink port instance associated with a given netdev. * Called with a reference on the netdevice and devlink locks only, * rtnl_lock is not held. */ @@ -1451,7 +1451,7 @@ struct net_device_ops { u32 flags); int (*ndo_xsk_async_xmit)(struct net_device *dev, u32 queue_id); - struct devlink * (*ndo_get_devlink)(struct net_device *dev); + struct devlink_port * (*ndo_get_devlink_port)(struct net_device *dev); }; /** -- cgit v1.2.3 From 0fca08122eaf5c956a2cbe12775245d747f8b1ac Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Thu, 28 Mar 2019 20:34:28 +0100 Subject: efi: Unify DMI setup code over the arm/arm64, ia64 and x86 architectures All architectures (arm/arm64, ia64 and x86) do the same here, so unify the code. Note: We do not need to call dump_stack_set_arch_desc() in case of !dmi_available. Both strings, dmi_ids_string and dump_stack_arch_ desc_str are initialized zero and thus nothing would change. Signed-off-by: Robert Richter Signed-off-by: Ard Biesheuvel Reviewed-by: Jean Delvare Cc: Linus Torvalds Cc: Matt Fleming Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20190328193429.21373-5-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar --- include/linux/dmi.h | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dmi.h b/include/linux/dmi.h index c46fdb36700b..8de8c4f15163 100644 --- a/include/linux/dmi.h +++ b/include/linux/dmi.h @@ -102,9 +102,7 @@ const struct dmi_system_id *dmi_first_match(const struct dmi_system_id *list); extern const char * dmi_get_system_info(int field); extern const struct dmi_device * dmi_find_device(int type, const char *name, const struct dmi_device *from); -extern void dmi_scan_machine(void); -extern void dmi_memdev_walk(void); -extern void dmi_set_dump_stack_arch_desc(void); +extern void dmi_setup(void); extern bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp); extern int dmi_get_bios_year(void); extern int dmi_name_in_vendors(const char *str); @@ -122,9 +120,7 @@ static inline int dmi_check_system(const struct dmi_system_id *list) { return 0; static inline const char * dmi_get_system_info(int field) { return NULL; } static inline const struct dmi_device * dmi_find_device(int type, const char *name, const struct dmi_device *from) { return NULL; } -static inline void dmi_scan_machine(void) { return; } -static inline void dmi_memdev_walk(void) { } -static inline void dmi_set_dump_stack_arch_desc(void) { } +static inline void dmi_setup(void) { } static inline bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp) { if (yearp) -- cgit v1.2.3 From 331c7a402358de6206232f6aab7aa48ec6c1088a Mon Sep 17 00:00:00 2001 From: David Ahern Date: Wed, 27 Mar 2019 20:53:47 -0700 Subject: ipv4: Move IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN to helper in_dev lookup followed by IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN check is called in several places, some with the rcu lock and others with the rtnl held. Move the check to a helper similar to what IPv6 has. Since the helper can be invoked from either context use rcu_dereference_rtnl to dereference ip_ptr. Signed-off-by: David Ahern Reviewed-by: Ido Schimmel Signed-off-by: David S. Miller --- include/linux/inetdevice.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/linux') diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h index a64f21a97369..367dc2a0f84a 100644 --- a/include/linux/inetdevice.h +++ b/include/linux/inetdevice.h @@ -237,6 +237,20 @@ static inline struct in_device *__in_dev_get_rtnl(const struct net_device *dev) return rtnl_dereference(dev->ip_ptr); } +/* called with rcu_read_lock or rtnl held */ +static inline bool ip_ignore_linkdown(const struct net_device *dev) +{ + struct in_device *in_dev; + bool rc = false; + + in_dev = rcu_dereference_rtnl(dev->ip_ptr); + if (in_dev && + IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN(in_dev)) + rc = true; + + return rc; +} + static inline struct neigh_parms *__in_dev_arp_parms_get_rcu(const struct net_device *dev) { struct in_device *in_dev = __in_dev_get_rcu(dev); -- cgit v1.2.3 From 159ef31e81edd75225c6a844115faf999de67b38 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 26 Feb 2019 15:32:29 +0100 Subject: device.h: reorganize struct device struct device is big, around 760 bytes on x86_64. It's not a critical structure, but it is embedded everywhere, so making it smaller is always a good thing. With a recent patch that moved a field from struct device to the private structure, some benchmarks showed a very odd regression, despite this structure having nothing to do with those benchmarks. That caused me to look into the layout of the structure. Using 'pahole', it showed a number of holes and ways that the structure could be reordered in order to align some cachelines better, as well as reduce the size of the overall structure. Move 'struct kobj' to the start of the structure, to keep that access in the first cacheline, and try to organize things a bit more compactly where possible By doing these few moves, the result removes at least 8 bytes from 'struct device' on a 64bit system. Given we know there are systems with at least 30k devices in memory at once, every little byte counts, and this change could be a savings of 240k of kernel memory for them. On "normal" systems the overall memory savings would be much less. Cc: "Rafael J. Wysocki" Cc: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- include/linux/device.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/device.h b/include/linux/device.h index 4e6987e11f68..4457e560bc2b 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -976,18 +976,14 @@ struct dev_links_info { * a higher-level representation of the device. */ struct device { + struct kobject kobj; struct device *parent; struct device_private *p; - struct kobject kobj; const char *init_name; /* initial name of the device */ const struct device_type *type; - struct mutex mutex; /* mutex to synchronize calls to - * its driver. - */ - struct bus_type *bus; /* type of bus device is on */ struct device_driver *driver; /* which driver has allocated this device */ @@ -995,6 +991,10 @@ struct device { core doesn't touch it */ void *driver_data; /* Driver data, set and get with dev_set_drvdata/dev_get_drvdata */ + struct mutex mutex; /* mutex to synchronize calls to + * its driver. + */ + struct dev_links_info links; struct dev_pm_info power; struct dev_pm_domain *pm_domain; @@ -1009,9 +1009,6 @@ struct device { struct list_head msi_list; #endif -#ifdef CONFIG_NUMA - int numa_node; /* NUMA node this device is close to */ -#endif const struct dma_map_ops *dma_ops; u64 *dma_mask; /* dma mask (if dma'able device) */ u64 coherent_dma_mask;/* Like dma_mask, but for @@ -1040,6 +1037,9 @@ struct device { struct device_node *of_node; /* associated device tree node */ struct fwnode_handle *fwnode; /* firmware device node */ +#ifdef CONFIG_NUMA + int numa_node; /* NUMA node this device is close to */ +#endif dev_t devt; /* dev_t, creates the sysfs "dev" */ u32 id; /* device instance */ -- cgit v1.2.3 From 817b4d64da036f5559297a2fdb82b8b14f4ffdcd Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 18 Mar 2019 23:00:54 +0300 Subject: ACPI / utils: Introduce acpi_dev_get_first_match_dev() helper The acpi_dev_get_first_match_name() is missing put_device() call and thus keeping reference counting unbalanced. In order to fix the issue introduce a new helper to convert existing users one-by-one to a better API. Signed-off-by: Andy Shevchenko Reviewed-by: Hans de Goede Reviewed-by: Mika Westerberg Acked-by: Mark Brown Signed-off-by: Rafael J. Wysocki --- include/linux/acpi.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index d5dcebd7aad3..3e1d16b00513 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -669,6 +669,12 @@ static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) return false; } +static inline struct acpi_device * +acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) +{ + return NULL; +} + static inline const char * acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv) { -- cgit v1.2.3 From 257f9053c0204ea47491aa236004fd1226f75fa8 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 28 Mar 2019 19:17:29 +0200 Subject: ACPI / utils: Remove deprecated function since no user left There is no more user of acpi_dev_get_first_match_name(), which is deprecated and has no user left, so, remove it for good. Signed-off-by: Andy Shevchenko Reviewed-by: Mika Westerberg Signed-off-by: Rafael J. Wysocki --- include/linux/acpi.h | 6 ------ 1 file changed, 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 3e1d16b00513..392413075cc0 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -675,12 +675,6 @@ acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) return NULL; } -static inline const char * -acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv) -{ - return NULL; -} - static inline bool is_acpi_node(struct fwnode_handle *fwnode) { return false; -- cgit v1.2.3 From 7bf60c52e093d9309752dbc3569fa213a80fb815 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 1 Apr 2019 17:50:55 +0800 Subject: dma-buf: add new dma_fence_chain container v7 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Lockless container implementation similar to a dma_fence_array, but with only two elements per node and automatic garbage collection. v2: properly document dma_fence_chain_for_each, add dma_fence_chain_find_seqno, drop prev reference during garbage collection if it's not a chain fence. v3: use head and iterator for dma_fence_chain_for_each v4: fix reference count in dma_fence_chain_enable_signaling v5: fix iteration when walking each chain node v6: add __rcu for member 'prev' of struct chain node v7: fix rcu warnings from kernel robot Signed-off-by: Christian König Reviewed-by: Lionel Landwerlin Link: https://patchwork.freedesktop.org/patch/295778/?series=58813&rev=1 --- include/linux/dma-fence-chain.h | 81 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 include/linux/dma-fence-chain.h (limited to 'include/linux') diff --git a/include/linux/dma-fence-chain.h b/include/linux/dma-fence-chain.h new file mode 100644 index 000000000000..934a442db8ac --- /dev/null +++ b/include/linux/dma-fence-chain.h @@ -0,0 +1,81 @@ +/* + * fence-chain: chain fences together in a timeline + * + * Copyright (C) 2018 Advanced Micro Devices, Inc. + * Authors: + * Christian König + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#ifndef __LINUX_DMA_FENCE_CHAIN_H +#define __LINUX_DMA_FENCE_CHAIN_H + +#include +#include + +/** + * struct dma_fence_chain - fence to represent an node of a fence chain + * @base: fence base class + * @lock: spinlock for fence handling + * @prev: previous fence of the chain + * @prev_seqno: original previous seqno before garbage collection + * @fence: encapsulated fence + * @cb: callback structure for signaling + * @work: irq work item for signaling + */ +struct dma_fence_chain { + struct dma_fence base; + spinlock_t lock; + struct dma_fence __rcu *prev; + u64 prev_seqno; + struct dma_fence *fence; + struct dma_fence_cb cb; + struct irq_work work; +}; + +extern const struct dma_fence_ops dma_fence_chain_ops; + +/** + * to_dma_fence_chain - cast a fence to a dma_fence_chain + * @fence: fence to cast to a dma_fence_array + * + * Returns NULL if the fence is not a dma_fence_chain, + * or the dma_fence_chain otherwise. + */ +static inline struct dma_fence_chain * +to_dma_fence_chain(struct dma_fence *fence) +{ + if (!fence || fence->ops != &dma_fence_chain_ops) + return NULL; + + return container_of(fence, struct dma_fence_chain, base); +} + +/** + * dma_fence_chain_for_each - iterate over all fences in chain + * @iter: current fence + * @head: starting point + * + * Iterate over all fences in the chain. We keep a reference to the current + * fence while inside the loop which must be dropped when breaking out. + */ +#define dma_fence_chain_for_each(iter, head) \ + for (iter = dma_fence_get(head); iter; \ + iter = dma_fence_chain_walk(iter)) + +struct dma_fence *dma_fence_chain_walk(struct dma_fence *fence); +int dma_fence_chain_find_seqno(struct dma_fence **pfence, uint64_t seqno); +void dma_fence_chain_init(struct dma_fence_chain *chain, + struct dma_fence *prev, + struct dma_fence *fence, + uint64_t seqno); + +#endif /* __LINUX_DMA_FENCE_CHAIN_H */ -- cgit v1.2.3 From 386cb76681ca6248878c7b76d3d5aa0e8b8a07bb Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 22 Mar 2019 07:49:30 -0700 Subject: bus: ti-sysc: Handle missed no-idle property in addition to no-idle-on-init We have ti,no-idle in use in addition to ti,no-idle-on-init but we're missing handling for it in the ti-sysc interconnect target module driver. Let's also group the idle defines together and update the binding documentation for it. Cc: devicetree@vger.kernel.org Reviewed-by: Rob Herring Signed-off-by: Tony Lindgren --- include/linux/platform_data/ti-sysc.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h index 1ea3aab972b4..fa97b8c5d26d 100644 --- a/include/linux/platform_data/ti-sysc.h +++ b/include/linux/platform_data/ti-sysc.h @@ -46,8 +46,9 @@ struct sysc_regbits { s8 emufree_shift; }; -#define SYSC_QUIRK_LEGACY_IDLE BIT(8) -#define SYSC_QUIRK_RESET_STATUS BIT(7) +#define SYSC_QUIRK_LEGACY_IDLE BIT(9) +#define SYSC_QUIRK_RESET_STATUS BIT(8) +#define SYSC_QUIRK_NO_IDLE BIT(7) #define SYSC_QUIRK_NO_IDLE_ON_INIT BIT(6) #define SYSC_QUIRK_NO_RESET_ON_INIT BIT(5) #define SYSC_QUIRK_OPT_CLKS_NEEDED BIT(4) -- cgit v1.2.3 From 190470871ae28da7bdb3909f6124385c8472fc97 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Sun, 17 Mar 2019 18:01:08 +0800 Subject: block: put the same page when adding it to bio When the added page is merged to last same page in bio_add_pc_page(), the user may need to put this page for avoiding page leak. bio_map_user_iov() needs this kind of handling, and now it deals with it by itself in hack style. Moves the handling of put page into __bio_add_pc_page(), so bio_map_user_iov() may be simplified a bit, and maybe more users can benefit from this change. Cc: Omar Sandoval Cc: Christoph Hellwig Signed-off-by: Ming Lei Signed-off-by: Jens Axboe --- include/linux/bio.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bio.h b/include/linux/bio.h index bb6090aa165d..bb915591557b 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -432,6 +432,9 @@ void bio_chain(struct bio *, struct bio *); extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int); extern int bio_add_pc_page(struct request_queue *, struct bio *, struct page *, unsigned int, unsigned int); +extern int __bio_add_pc_page(struct request_queue *, struct bio *, + struct page *, unsigned int, unsigned int, + bool); bool __bio_try_merge_page(struct bio *bio, struct page *page, unsigned int len, unsigned int off, bool same_page); void __bio_add_page(struct bio *bio, struct page *page, -- cgit v1.2.3 From 5a25e3f7cc538fb49e11267c1e41c54ccf83835e Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 26 Mar 2019 12:15:13 +0100 Subject: cpufreq: intel_pstate: Driver-specific handling of _PPC updates In some cases, the platform firmware disables or enables turbo frequencies for all CPUs globally before triggering a _PPC change notification for one of them. Obviously, that global change affects all CPUs, not just the notified one, and it needs to be acted upon by cpufreq. The intel_pstate driver is able to detect such global changes of the settings, but it also needs to update policy limits for all CPUs if that happens, in particular if turbo frequencies are enabled globally - to allow them to be used. For this reason, introduce a new cpufreq driver callback to be invoked on _PPC notifications, if present, instead of simply calling cpufreq_update_policy() for the notified CPU and make intel_pstate use it to trigger policy updates for all CPUs in the system if global settings change. Link: https://bugzilla.kernel.org/show_bug.cgi?id=200759 Reported-by: Gabriele Mazzotta Tested-by: Gabriele Mazzotta Signed-off-by: Rafael J. Wysocki Acked-by: Viresh Kumar --- include/linux/cpufreq.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index b160e98076e3..5005ea40364f 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -195,6 +195,7 @@ void disable_cpufreq(void); u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy); int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu); void cpufreq_update_policy(unsigned int cpu); +void cpufreq_update_limits(unsigned int cpu); bool have_governor_per_policy(void); struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy); void cpufreq_enable_fast_switch(struct cpufreq_policy *policy); @@ -322,6 +323,9 @@ struct cpufreq_driver { /* should be defined, if possible */ unsigned int (*get)(unsigned int cpu); + /* Called to update policy limits on firmware notifications. */ + void (*update_limits)(unsigned int cpu); + /* optional */ int (*bios_limit)(int cpu, unsigned int *limit); -- cgit v1.2.3 From 97cdcf37b57e3f204be3000b9eab9686f38b4356 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Mon, 1 Apr 2019 16:42:13 +0200 Subject: net: place xmit recursion in softnet data This fills a hole in softnet data, so no change in structure size. Also prepares for xmit_more placement in the same spot; skb->xmit_more will be removed in followup patch. Signed-off-by: Florian Westphal Signed-off-by: David S. Miller --- include/linux/netdevice.h | 40 ++++++++++++++++++++++++++++++++-------- 1 file changed, 32 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 78f5ec4ebf64..2b25824642fa 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2659,14 +2659,6 @@ void netdev_freemem(struct net_device *dev); void synchronize_net(void); int init_dummy_netdev(struct net_device *dev); -DECLARE_PER_CPU(int, xmit_recursion); -#define XMIT_RECURSION_LIMIT 10 - -static inline int dev_recursion_level(void) -{ - return this_cpu_read(xmit_recursion); -} - struct net_device *dev_get_by_index(struct net *net, int ifindex); struct net_device *__dev_get_by_index(struct net *net, int ifindex); struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex); @@ -3015,6 +3007,11 @@ struct softnet_data { #ifdef CONFIG_XFRM_OFFLOAD struct sk_buff_head xfrm_backlog; #endif + /* written and read only by owning cpu: */ + struct { + u16 recursion; + u8 more; + } xmit; #ifdef CONFIG_RPS /* input_queue_head should be written by cpu owning this struct, * and only read by other cpus. Worth using a cache line. @@ -3050,6 +3047,28 @@ static inline void input_queue_tail_incr_save(struct softnet_data *sd, DECLARE_PER_CPU_ALIGNED(struct softnet_data, softnet_data); +static inline int dev_recursion_level(void) +{ + return __this_cpu_read(softnet_data.xmit.recursion); +} + +#define XMIT_RECURSION_LIMIT 10 +static inline bool dev_xmit_recursion(void) +{ + return unlikely(__this_cpu_read(softnet_data.xmit.recursion) > + XMIT_RECURSION_LIMIT); +} + +static inline void dev_xmit_recursion_inc(void) +{ + __this_cpu_inc(softnet_data.xmit.recursion); +} + +static inline void dev_xmit_recursion_dec(void) +{ + __this_cpu_dec(softnet_data.xmit.recursion); +} + void __netif_schedule(struct Qdisc *q); void netif_schedule_queue(struct netdev_queue *txq); @@ -4409,6 +4428,11 @@ static inline netdev_tx_t __netdev_start_xmit(const struct net_device_ops *ops, return ops->ndo_start_xmit(skb, dev); } +static inline bool netdev_xmit_more(void) +{ + return __this_cpu_read(softnet_data.xmit.more); +} + static inline netdev_tx_t netdev_start_xmit(struct sk_buff *skb, struct net_device *dev, struct netdev_queue *txq, bool more) { -- cgit v1.2.3 From 6b16f9ee89b8d5709f24bc3ac89ae8b5452c0d7c Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Mon, 1 Apr 2019 16:42:14 +0200 Subject: net: move skb->xmit_more hint to softnet data There are two reasons for this. First, the xmit_more flag conceptually doesn't fit into the skb, as xmit_more is not a property related to the skb. Its only a hint to the driver that the stack is about to transmit another packet immediately. Second, it was only done this way to not have to pass another argument to ndo_start_xmit(). We can place xmit_more in the softnet data, next to the device recursion. The recursion counter is already written to on each transmit. The "more" indicator is placed right next to it. Drivers can use the netdev_xmit_more() helper instead of skb->xmit_more to check the "more packets coming" hint. skb->xmit_more is retained (but always 0) to not cause build breakage. This change takes care of the simple s/skb->xmit_more/netdev_xmit_more()/ conversions. Remaining drivers are converted in the next patches. Suggested-by: Eric Dumazet Signed-off-by: Florian Westphal Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 2b25824642fa..eb9f05e0863d 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -4424,7 +4424,7 @@ static inline netdev_tx_t __netdev_start_xmit(const struct net_device_ops *ops, struct sk_buff *skb, struct net_device *dev, bool more) { - skb->xmit_more = more ? 1 : 0; + __this_cpu_write(softnet_data.xmit.more, more); return ops->ndo_start_xmit(skb, dev); } -- cgit v1.2.3 From 4f296edeb9d4cf76b876869461a7ae627c307110 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Mon, 1 Apr 2019 16:42:17 +0200 Subject: drivers: net: aurora: use netdev_xmit_more helper This is the last driver using always-0 skb->xmit_more. Switch it to netdev_xmit_more and remove the now unused xmit_more flag from sk_buff. Signed-off-by: Florian Westphal Signed-off-by: David S. Miller --- include/linux/skbuff.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 9027a8c4219f..69b5538adcea 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -657,7 +657,6 @@ typedef unsigned char *sk_buff_data_t; * @tc_index: Traffic control index * @hash: the packet hash * @queue_mapping: Queue mapping for multiqueue devices - * @xmit_more: More SKBs are pending for this queue * @pfmemalloc: skbuff was allocated from PFMEMALLOC reserves * @active_extensions: active extensions (skb_ext_id types) * @ndisc_nodetype: router type (from link layer) @@ -764,7 +763,6 @@ struct sk_buff { fclone:2, peeked:1, head_frag:1, - xmit_more:1, pfmemalloc:1; #ifdef CONFIG_SKB_EXTENSIONS __u8 active_extensions; -- cgit v1.2.3 From f36e789a1f8d0b75ee2b459dfac10efd7d299a6d Mon Sep 17 00:00:00 2001 From: Thor Thayer Date: Mon, 11 Mar 2019 17:18:03 -0500 Subject: mfd: altera-sysmgr: Add SOCFPGA System Manager The SOCFPGA System Manager register block aggregates different peripheral functions into one area. On 32 bit ARM parts, handle in the same way as syscon. On 64 bit ARM parts, the System Manager can only be accessed by EL3 secure mode. Since a SMC call to EL3 is required, this new driver uses regmaps similar to syscon to handle the SMC call. Since regmaps abstract out the underlying register access, the changes to drivers accessing the System Manager are minimal. Signed-off-by: Thor Thayer Reviewed-by: Arnd Bergmann Signed-off-by: Lee Jones --- include/linux/mfd/altera-sysmgr.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 include/linux/mfd/altera-sysmgr.h (limited to 'include/linux') diff --git a/include/linux/mfd/altera-sysmgr.h b/include/linux/mfd/altera-sysmgr.h new file mode 100644 index 000000000000..b1ef11a83872 --- /dev/null +++ b/include/linux/mfd/altera-sysmgr.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2018-2019 Intel Corporation + * Copyright (C) 2012 Freescale Semiconductor, Inc. + * Copyright (C) 2012 Linaro Ltd. + */ + +#ifndef __LINUX_MFD_ALTERA_SYSMGR_H__ +#define __LINUX_MFD_ALTERA_SYSMGR_H__ + +#include +#include +#include + +struct device_node; + +#ifdef CONFIG_MFD_ALTERA_SYSMGR +struct regmap *altr_sysmgr_regmap_lookup_by_phandle(struct device_node *np, + const char *property); +#else +static inline struct regmap * +altr_sysmgr_regmap_lookup_by_phandle(struct device_node *np, + const char *property) +{ + return ERR_PTR(-ENOTSUPP); +} +#endif + +#endif /* __LINUX_MFD_ALTERA_SYSMGR_H__ */ -- cgit v1.2.3 From cb8be119d21d8a0affc3598a928dd0baf5da238f Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Mon, 25 Mar 2019 17:35:53 +0100 Subject: math64: New DIV64_U64_ROUND_CLOSEST helper Provide DIV64_U64_ROUND_CLOSEST helper which performs division rounded to the closest integer using an unsigned 64bit dividend and divisor. This will be used in a follow-up patch to allow calculation of clock divisors with high frequency parents in the R-Car Gen3 CPG MSSR driver where overflow occurs if either the dividend or divisor is 32bit. Signed-off-by: Simon Horman Signed-off-by: Geert Uytterhoeven --- include/linux/math64.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux') diff --git a/include/linux/math64.h b/include/linux/math64.h index bb2c84afb80c..65bef21cdddb 100644 --- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -284,4 +284,17 @@ static inline u64 mul_u64_u32_div(u64 a, u32 mul, u32 divisor) #define DIV64_U64_ROUND_UP(ll, d) \ ({ u64 _tmp = (d); div64_u64((ll) + _tmp - 1, _tmp); }) +/** + * DIV64_U64_ROUND_CLOSEST - unsigned 64bit divide with 64bit divisor rounded to nearest integer + * @dividend: unsigned 64bit dividend + * @divisor: unsigned 64bit divisor + * + * Divide unsigned 64bit dividend by unsigned 64bit divisor + * and round to closest integer. + * + * Return: dividend / divisor rounded to nearest integer + */ +#define DIV64_U64_ROUND_CLOSEST(dividend, divisor) \ + ({ u64 _tmp = (divisor); div64_u64((dividend) + _tmp / 2, _tmp); }) + #endif /* _LINUX_MATH64_H */ -- cgit v1.2.3 From b5dee3130bb4014511f5d0dd46855ed843e3fdc8 Mon Sep 17 00:00:00 2001 From: Harry Pan Date: Mon, 25 Feb 2019 20:36:41 +0800 Subject: PM / sleep: Refactor filesystems sync to reduce duplication Create a common helper to sync filesystems for system suspend and hibernation. Signed-off-by: Harry Pan Acked-by: Pavel Machek [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki --- include/linux/suspend.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 3f529ad9a9d2..6b3ea9ea6a9e 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -425,6 +425,7 @@ void restore_processor_state(void); /* kernel/power/main.c */ extern int register_pm_notifier(struct notifier_block *nb); extern int unregister_pm_notifier(struct notifier_block *nb); +extern void ksys_sync_helper(void); #define pm_notifier(fn, pri) { \ static struct notifier_block fn##_nb = \ @@ -462,6 +463,8 @@ static inline int unregister_pm_notifier(struct notifier_block *nb) return 0; } +static inline void ksys_sync_helper(void) {} + #define pm_notifier(fn, pri) do { (void)(fn); } while (0) static inline bool pm_wakeup_pending(void) { return false; } -- cgit v1.2.3 From de7b77e5bb9451417ca57f1b6501da654587c048 Mon Sep 17 00:00:00 2001 From: Josh Poimboeuf Date: Wed, 27 Mar 2019 07:00:29 -0500 Subject: cpu/hotplug: Create SMT sysfs interface for all arches Make the /sys/devices/system/cpu/smt/* files available on all arches, so user space has a consistent way to detect whether SMT is enabled. The 'control' file now shows 'notimplemented' for architectures which don't yet have CONFIG_HOTPLUG_SMT. [ tglx: Make notimplemented a real state ] Signed-off-by: Josh Poimboeuf Signed-off-by: Thomas Gleixner Cc: Andrea Arcangeli Cc: Waiman Long Cc: Peter Zijlstra Cc: Jiri Kosina Link: https://lkml.kernel.org/r/469c2b98055f2c41e75748e06447d592a64080c9.1553635520.git.jpoimboe@redhat.com --- include/linux/cpu.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 5041357d0297..ae99dde02320 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -175,6 +175,7 @@ enum cpuhp_smt_control { CPU_SMT_DISABLED, CPU_SMT_FORCE_DISABLED, CPU_SMT_NOT_SUPPORTED, + CPU_SMT_NOT_IMPLEMENTED, }; #if defined(CONFIG_SMP) && defined(CONFIG_HOTPLUG_SMT) @@ -182,7 +183,7 @@ extern enum cpuhp_smt_control cpu_smt_control; extern void cpu_smt_disable(bool force); extern void cpu_smt_check_topology(void); #else -# define cpu_smt_control (CPU_SMT_ENABLED) +# define cpu_smt_control (CPU_SMT_NOT_IMPLEMENTED) static inline void cpu_smt_disable(bool force) { } static inline void cpu_smt_check_topology(void) { } #endif -- cgit v1.2.3 From 58e75155009cc800005629955d3482f36a1e0eec Mon Sep 17 00:00:00 2001 From: Nicolas Saenz Julienne Date: Wed, 27 Mar 2019 11:18:48 +0100 Subject: HID: core: move Usage Page concatenation to Main item As seen on some USB wireless keyboards manufactured by Primax, the HID parser was using some assumptions that are not always true. In this case it's s the fact that, inside the scope of a main item, an Usage Page will always precede an Usage. The spec is not pretty clear as 6.2.2.7 states "Any usage that follows is interpreted as a Usage ID and concatenated with the Usage Page". While 6.2.2.8 states "When the parser encounters a main item it concatenates the last declared Usage Page with a Usage to form a complete usage value." Being somewhat contradictory it was decided to match Window's implementation, which follows 6.2.2.8. In summary, the patch moves the Usage Page concatenation from the local item parsing function to the main item parsing function. Signed-off-by: Nicolas Saenz Julienne Reviewed-by: Terry Junge Signed-off-by: Benjamin Tissoires --- include/linux/hid.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/hid.h b/include/linux/hid.h index f9707d1dcb58..ac0c70b4ce10 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -417,6 +417,7 @@ struct hid_global { struct hid_local { unsigned usage[HID_MAX_USAGES]; /* usage array */ + u8 usage_size[HID_MAX_USAGES]; /* usage size array */ unsigned collection_index[HID_MAX_USAGES]; /* collection index array */ unsigned usage_index; unsigned usage_minimum; -- cgit v1.2.3 From 9a41691e5e01ba38865afa7a1eaa352974bf4a6e Mon Sep 17 00:00:00 2001 From: Vishnu DASA Date: Mon, 11 Mar 2019 23:19:42 +0000 Subject: VMCI: Use BIT() macro for bit definitions No functional changes, cleanup only. Reviewed-by: Adit Ranadive Reviewed-by: Jorgen Hansen Signed-off-by: Vishnu Dasa Signed-off-by: Greg Kroah-Hartman --- include/linux/vmw_vmci_defs.h | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-) (limited to 'include/linux') diff --git a/include/linux/vmw_vmci_defs.h b/include/linux/vmw_vmci_defs.h index eaa1e762bf06..0c06178e4985 100644 --- a/include/linux/vmw_vmci_defs.h +++ b/include/linux/vmw_vmci_defs.h @@ -17,6 +17,7 @@ #define _VMW_VMCI_DEF_H_ #include +#include /* Register offsets. */ #define VMCI_STATUS_ADDR 0x00 @@ -33,27 +34,27 @@ #define VMCI_MAX_DEVICES 1 /* Status register bits. */ -#define VMCI_STATUS_INT_ON 0x1 +#define VMCI_STATUS_INT_ON BIT(0) /* Control register bits. */ -#define VMCI_CONTROL_RESET 0x1 -#define VMCI_CONTROL_INT_ENABLE 0x2 -#define VMCI_CONTROL_INT_DISABLE 0x4 +#define VMCI_CONTROL_RESET BIT(0) +#define VMCI_CONTROL_INT_ENABLE BIT(1) +#define VMCI_CONTROL_INT_DISABLE BIT(2) /* Capabilities register bits. */ -#define VMCI_CAPS_HYPERCALL 0x1 -#define VMCI_CAPS_GUESTCALL 0x2 -#define VMCI_CAPS_DATAGRAM 0x4 -#define VMCI_CAPS_NOTIFICATIONS 0x8 -#define VMCI_CAPS_PPN64 0x10 +#define VMCI_CAPS_HYPERCALL BIT(0) +#define VMCI_CAPS_GUESTCALL BIT(1) +#define VMCI_CAPS_DATAGRAM BIT(2) +#define VMCI_CAPS_NOTIFICATIONS BIT(3) +#define VMCI_CAPS_PPN64 BIT(4) /* Interrupt Cause register bits. */ -#define VMCI_ICR_DATAGRAM 0x1 -#define VMCI_ICR_NOTIFICATION 0x2 +#define VMCI_ICR_DATAGRAM BIT(0) +#define VMCI_ICR_NOTIFICATION BIT(1) /* Interrupt Mask register bits. */ -#define VMCI_IMR_DATAGRAM 0x1 -#define VMCI_IMR_NOTIFICATION 0x2 +#define VMCI_IMR_DATAGRAM BIT(0) +#define VMCI_IMR_NOTIFICATION BIT(1) /* Maximum MSI/MSI-X interrupt vectors in the device. */ #define VMCI_MAX_INTRS 2 @@ -463,9 +464,9 @@ struct vmci_datagram { * datagram callback is invoked in a delayed context (not interrupt context). */ #define VMCI_FLAG_DG_NONE 0 -#define VMCI_FLAG_WELLKNOWN_DG_HND 0x1 -#define VMCI_FLAG_ANYCID_DG_HND 0x2 -#define VMCI_FLAG_DG_DELAYED_CB 0x4 +#define VMCI_FLAG_WELLKNOWN_DG_HND BIT(0) +#define VMCI_FLAG_ANYCID_DG_HND BIT(1) +#define VMCI_FLAG_DG_DELAYED_CB BIT(2) /* * Maximum supported size of a VMCI datagram for routable datagrams. @@ -694,7 +695,7 @@ struct vmci_qp_detach_msg { }; /* VMCI Doorbell API. */ -#define VMCI_FLAG_DELAYED_CB 0x01 +#define VMCI_FLAG_DELAYED_CB BIT(0) typedef void (*vmci_callback) (void *client_data); -- cgit v1.2.3 From fad9fab975cb9fae651854c811cb07a30bc2b98a Mon Sep 17 00:00:00 2001 From: Thor Thayer Date: Tue, 2 Apr 2019 17:40:56 +0200 Subject: EDAC/altera, firmware/intel: Add Stratix10 ECC DBE SMC call Reserve ECC Double Bit Error SMC call to alert U-Boot that a DBE has occurred. Move the call from local EDAC header file to a common header. [ bp: Merge the two patches. ] Signed-off-by: Thor Thayer Signed-off-by: Borislav Petkov Reviewed-by: Richard Gong Reviewed-by: Alan Tull # firmware Cc: Greg KH Cc: James Morse Cc: linux-edac Cc: mchehab@kernel.org Link: https://lkml.kernel.org/r/1553870639-23895-1-git-send-email-thor.thayer@linux.intel.com Signed-off-by: Borislav Petkov --- include/linux/firmware/intel/stratix10-smc.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'include/linux') diff --git a/include/linux/firmware/intel/stratix10-smc.h b/include/linux/firmware/intel/stratix10-smc.h index 5be5dab50b13..01684d935580 100644 --- a/include/linux/firmware/intel/stratix10-smc.h +++ b/include/linux/firmware/intel/stratix10-smc.h @@ -309,4 +309,23 @@ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FPGA_CONFIG_COMPLETED_WRITE) #define INTEL_SIP_SMC_FUNCID_RSU_UPDATE 12 #define INTEL_SIP_SMC_RSU_UPDATE \ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_RSU_UPDATE) + +/* + * Request INTEL_SIP_SMC_ECC_DBE + * + * Sync call used by service driver at EL1 to alert EL3 that a Double + * Bit ECC error has occurred. + * + * Call register usage: + * a0 INTEL_SIP_SMC_ECC_DBE + * a1 SysManager Double Bit Error value + * a2-7 not used + * + * Return status + * a0 INTEL_SIP_SMC_STATUS_OK + */ +#define INTEL_SIP_SMC_FUNCID_ECC_DBE 13 +#define INTEL_SIP_SMC_ECC_DBE \ + INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_ECC_DBE) + #endif -- cgit v1.2.3 From d005aa750c9b7ca7f77dafd6dda33a0fcb6e7ae3 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 2 Apr 2019 08:20:08 -0700 Subject: reset: fix linux/reset.h errors MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The header file uses errno constant(s) and the ERR_PTR() macro but does not #include the appropriate header files that provide those facilities, so add 2 header files to fix build errors. CC [M] drivers/gpu/drm/lima/lima_device.o In file included from ../drivers/gpu/drm/lima/lima_device.c:5:0: ../include/linux/reset.h: In function ‘__device_reset’: ../include/linux/reset.h:77:25: error: ‘ENOTSUPP’ undeclared (first use in this function) return optional ? 0 : -ENOTSUPP; ../include/linux/reset.h:77:25: note: each undeclared identifier is reported only once for each function it appears in ../include/linux/reset.h: In function ‘__of_reset_control_get’: ../include/linux/reset.h:85:36: error: ‘ENOTSUPP’ undeclared (first use in this function) return optional ? NULL : ERR_PTR(-ENOTSUPP); ../include/linux/reset.h: In function ‘__reset_control_get’: ../include/linux/reset.h:93:36: error: ‘ENOTSUPP’ undeclared (first use in this function) return optional ? NULL : ERR_PTR(-ENOTSUPP); ../include/linux/reset.h: In function ‘__devm_reset_control_get’: ../include/linux/reset.h:101:36: error: ‘ENOTSUPP’ undeclared (first use in this function) return optional ? NULL : ERR_PTR(-ENOTSUPP); ../include/linux/reset.h: In function ‘devm_reset_control_array_get’: ../include/linux/reset.h:107:36: error: ‘ENOTSUPP’ undeclared (first use in this function) return optional ? NULL : ERR_PTR(-ENOTSUPP); ../include/linux/reset.h: In function ‘of_reset_control_array_get’: ../include/linux/reset.h:114:36: error: ‘ENOTSUPP’ undeclared (first use in this function) return optional ? NULL : ERR_PTR(-ENOTSUPP); In file included from ../drivers/gpu/drm/lima/lima_device.c:5:0: ../include/linux/reset.h: In function ‘__devm_reset_control_get’: ../include/linux/reset.h:102:1: warning: control reaches end of non-void function [-Wreturn-type] } Signed-off-by: Randy Dunlap Signed-off-by: Philipp Zabel --- include/linux/reset.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/reset.h b/include/linux/reset.h index 95d555c2130a..e7793fc0fa93 100644 --- a/include/linux/reset.h +++ b/include/linux/reset.h @@ -2,6 +2,8 @@ #ifndef _LINUX_RESET_H_ #define _LINUX_RESET_H_ +#include +#include #include struct device; -- cgit v1.2.3 From 38702cce547a74493687fd8bb925fbb5c3898ce3 Mon Sep 17 00:00:00 2001 From: Maxim Mikityanskiy Date: Fri, 29 Mar 2019 15:37:51 -0700 Subject: net/mlx5: Remove unused MLX5_*_DOORBELL_LOCK macros MLX5_*_DOORBELL_LOCK macros provided a way to avoid locking for mlx5_write64 on 64-bit platforms where it's not necessary. Currently all calls to mlx5_write64 don't use a spinlock, so the macros became unused. Signed-off-by: Maxim Mikityanskiy Reviewed-by: Eran Ben Elisha Signed-off-by: Saeed Mahameed --- include/linux/mlx5/doorbell.h | 8 -------- 1 file changed, 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/doorbell.h b/include/linux/mlx5/doorbell.h index 0787de28f2fc..9ef3f9d00154 100644 --- a/include/linux/mlx5/doorbell.h +++ b/include/linux/mlx5/doorbell.h @@ -42,10 +42,6 @@ * PCI so we won't worry about it. */ -#define MLX5_DECLARE_DOORBELL_LOCK(name) -#define MLX5_INIT_DOORBELL_LOCK(ptr) do { } while (0) -#define MLX5_GET_DOORBELL_LOCK(ptr) (NULL) - static inline void mlx5_write64(__be32 val[2], void __iomem *dest, spinlock_t *doorbell_lock) { @@ -59,10 +55,6 @@ static inline void mlx5_write64(__be32 val[2], void __iomem *dest, * MMIO writes. */ -#define MLX5_DECLARE_DOORBELL_LOCK(name) spinlock_t name; -#define MLX5_INIT_DOORBELL_LOCK(ptr) spin_lock_init(ptr) -#define MLX5_GET_DOORBELL_LOCK(ptr) (ptr) - static inline void mlx5_write64(__be32 val[2], void __iomem *dest, spinlock_t *doorbell_lock) { -- cgit v1.2.3 From bbf29f618e8c5bfd6efdad5fdc050a84bab795ab Mon Sep 17 00:00:00 2001 From: Maxim Mikityanskiy Date: Fri, 29 Mar 2019 15:37:52 -0700 Subject: net/mlx5: Remove spinlock support from mlx5_write64 As there is no user of mlx5_write64 that passes a spinlock to mlx5_write64, remove this functionality and simplify the function. Signed-off-by: Maxim Mikityanskiy Reviewed-by: Eran Ben Elisha Signed-off-by: Saeed Mahameed --- include/linux/mlx5/cq.h | 2 +- include/linux/mlx5/doorbell.h | 31 +++++++++---------------------- 2 files changed, 10 insertions(+), 23 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/cq.h b/include/linux/mlx5/cq.h index 612c8c2f2466..769326ea1d9b 100644 --- a/include/linux/mlx5/cq.h +++ b/include/linux/mlx5/cq.h @@ -170,7 +170,7 @@ static inline void mlx5_cq_arm(struct mlx5_core_cq *cq, u32 cmd, doorbell[0] = cpu_to_be32(sn << 28 | cmd | ci); doorbell[1] = cpu_to_be32(cq->cqn); - mlx5_write64(doorbell, uar_page + MLX5_CQ_DOORBELL, NULL); + mlx5_write64(doorbell, uar_page + MLX5_CQ_DOORBELL); } static inline void mlx5_cq_hold(struct mlx5_core_cq *cq) diff --git a/include/linux/mlx5/doorbell.h b/include/linux/mlx5/doorbell.h index 9ef3f9d00154..5c267707e1df 100644 --- a/include/linux/mlx5/doorbell.h +++ b/include/linux/mlx5/doorbell.h @@ -36,38 +36,25 @@ #define MLX5_BF_OFFSET 0x800 #define MLX5_CQ_DOORBELL 0x20 -#if BITS_PER_LONG == 64 /* Assume that we can just write a 64-bit doorbell atomically. s390 * actually doesn't have writeq() but S/390 systems don't even have * PCI so we won't worry about it. + * + * Note that the write is not atomic on 32-bit systems! In contrast to 64-bit + * ones, it requires proper locking. mlx5_write64 doesn't do any locking, so use + * it at your own discretion, protected by some kind of lock on 32 bits. + * + * TODO: use write{q,l}_relaxed() */ -static inline void mlx5_write64(__be32 val[2], void __iomem *dest, - spinlock_t *doorbell_lock) +static inline void mlx5_write64(__be32 val[2], void __iomem *dest) { +#if BITS_PER_LONG == 64 __raw_writeq(*(u64 *)val, dest); -} - #else - -/* Just fall back to a spinlock to protect the doorbell if - * BITS_PER_LONG is 32 -- there's no portable way to do atomic 64-bit - * MMIO writes. - */ - -static inline void mlx5_write64(__be32 val[2], void __iomem *dest, - spinlock_t *doorbell_lock) -{ - unsigned long flags; - - if (doorbell_lock) - spin_lock_irqsave(doorbell_lock, flags); __raw_writel((__force u32) val[0], dest); __raw_writel((__force u32) val[1], dest + 4); - if (doorbell_lock) - spin_unlock_irqrestore(doorbell_lock, flags); -} - #endif +} #endif /* MLX5_DOORBELL_H */ -- cgit v1.2.3 From 52c368dc3da7beb7b283133024af1b6d07bf93b9 Mon Sep 17 00:00:00 2001 From: Saeed Mahameed Date: Fri, 29 Mar 2019 15:37:55 -0700 Subject: net/mlx5: Move health and page alloc init to mdev_init Software structure initialization should be in mdev_init stage. This provides a better logical separation of mlx5 core device initialization flow and will help to seamlessly support creating different mlx5 device types such as PF, VF and SF mlx5 sub-function virtual device. This patch does not change any functionality. Signed-off-by: Vu Pham Signed-off-by: Saeed Mahameed --- include/linux/mlx5/driver.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index c5454f985e1d..d7f5c0e8c47a 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -883,6 +883,7 @@ void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome); int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type); int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn); int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn); +void mlx5_health_flush(struct mlx5_core_dev *dev); void mlx5_health_cleanup(struct mlx5_core_dev *dev); int mlx5_health_init(struct mlx5_core_dev *dev); void mlx5_start_health_poll(struct mlx5_core_dev *dev); -- cgit v1.2.3 From aa8106f137b93628d531ef5ecbbcbecef99370d7 Mon Sep 17 00:00:00 2001 From: Huy Nguyen Date: Fri, 29 Mar 2019 15:38:01 -0700 Subject: net/mlx5: Add explicit bar address field Add bar_addr field to store bar-0 address to avoid calling pci_resource_start with hard-coded bar-0 as parameter. Also note that different mlx5 device types will have bar_addr on different bars. This patch does not change any functionality. Signed-off-by: Huy Nguyen Signed-off-by: Vu Pham Signed-off-by: Saeed Mahameed --- include/linux/mlx5/driver.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index d7f5c0e8c47a..c0ee597f5457 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -658,6 +658,7 @@ struct mlx5_core_dev { u64 sys_image_guid; phys_addr_t iseg_base; struct mlx5_init_seg __iomem *iseg; + phys_addr_t bar_addr; enum mlx5_device_state state; /* sync interface state */ struct mutex intf_state_mutex; -- cgit v1.2.3 From 4039049b5c462d3bb9ee8a68c4375582f037d5f2 Mon Sep 17 00:00:00 2001 From: Aya Levin Date: Fri, 29 Mar 2019 15:38:03 -0700 Subject: net/mlx5: Expose MPEIN (Management PCIE INfo) register layout Expose PRM layout for handling MPEIN (Management PCIE Info). It will be used in the downstream patch for querying MPEIN via the driver. Signed-off-by: Aya Levin Signed-off-by: Saeed Mahameed --- include/linux/mlx5/driver.h | 1 + include/linux/mlx5/mlx5_ifc.h | 51 ++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 51 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index c0ee597f5457..0bfb95e30e47 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -133,6 +133,7 @@ enum { MLX5_REG_MTRC_CONF = 0x9041, MLX5_REG_MTRC_STDB = 0x9042, MLX5_REG_MTRC_CTRL = 0x9043, + MLX5_REG_MPEIN = 0x9050, MLX5_REG_MPCNT = 0x9051, MLX5_REG_MTPPS = 0x9053, MLX5_REG_MTPPSE = 0x9054, diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 5decffe565fb..d31712af5a7b 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -8025,6 +8025,52 @@ struct mlx5_ifc_ppcnt_reg_bits { union mlx5_ifc_eth_cntrs_grp_data_layout_auto_bits counter_set; }; +struct mlx5_ifc_mpein_reg_bits { + u8 reserved_at_0[0x2]; + u8 depth[0x6]; + u8 pcie_index[0x8]; + u8 node[0x8]; + u8 reserved_at_18[0x8]; + + u8 capability_mask[0x20]; + + u8 reserved_at_40[0x8]; + u8 link_width_enabled[0x8]; + u8 link_speed_enabled[0x10]; + + u8 lane0_physical_position[0x8]; + u8 link_width_active[0x8]; + u8 link_speed_active[0x10]; + + u8 num_of_pfs[0x10]; + u8 num_of_vfs[0x10]; + + u8 bdf0[0x10]; + u8 reserved_at_b0[0x10]; + + u8 max_read_request_size[0x4]; + u8 max_payload_size[0x4]; + u8 reserved_at_c8[0x5]; + u8 pwr_status[0x3]; + u8 port_type[0x4]; + u8 reserved_at_d4[0xb]; + u8 lane_reversal[0x1]; + + u8 reserved_at_e0[0x14]; + u8 pci_power[0xc]; + + u8 reserved_at_100[0x20]; + + u8 device_status[0x10]; + u8 port_state[0x8]; + u8 reserved_at_138[0x8]; + + u8 reserved_at_140[0x10]; + u8 receiver_detect_result[0x10]; + + u8 reserved_at_160[0x20]; +}; + struct mlx5_ifc_mpcnt_reg_bits { u8 reserved_at_0[0x8]; u8 pcie_index[0x8]; @@ -8344,7 +8390,9 @@ struct mlx5_ifc_pcam_reg_bits { }; struct mlx5_ifc_mcam_enhanced_features_bits { - u8 reserved_at_0[0x74]; + u8 reserved_at_0[0x6e]; + u8 pci_status_and_power[0x1]; + u8 reserved_at_6f[0x5]; u8 mark_tx_action_cnp[0x1]; u8 mark_tx_action_cqe[0x1]; u8 dynamic_tx_overflow[0x1]; @@ -8944,6 +8992,7 @@ union mlx5_ifc_ports_control_registers_document_bits { struct mlx5_ifc_pmtu_reg_bits pmtu_reg; struct mlx5_ifc_ppad_reg_bits ppad_reg; struct mlx5_ifc_ppcnt_reg_bits ppcnt_reg; + struct mlx5_ifc_mpein_reg_bits mpein_reg; struct mlx5_ifc_mpcnt_reg_bits mpcnt_reg; struct mlx5_ifc_pplm_reg_bits pplm_reg; struct mlx5_ifc_pplr_reg_bits pplr_reg; -- cgit v1.2.3 From 045925e3fe5b98e402337a176d154252c56cef2e Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Wed, 27 Mar 2019 21:58:44 +0100 Subject: net: phy: add genphy_read_abilities Similar to genphy_c45_pma_read_abilities() add a function to dynamically detect the abilities of a Clause 22 PHY. This is mainly copied from genphy_config_init(). Signed-off-by: Heiner Kallweit Signed-off-by: David S. Miller --- include/linux/phy.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/phy.h b/include/linux/phy.h index 34084892a466..ad88f063e50f 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1075,6 +1075,7 @@ void phy_attached_info(struct phy_device *phydev); /* Clause 22 PHY */ int genphy_config_init(struct phy_device *phydev); +int genphy_read_abilities(struct phy_device *phydev); int genphy_setup_forced(struct phy_device *phydev); int genphy_restart_aneg(struct phy_device *phydev); int genphy_config_eee_advert(struct phy_device *phydev); -- cgit v1.2.3 From f14382d7e40cc8872d4e4c71f06000ea499c8384 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 2 Apr 2019 15:54:10 -0700 Subject: clk: Drop duplicate clk_register() documentation clk_register() isn't the main way to register a clk anymore. Developers should use clk_hw_register() instead. Furthermore, this whole chunk of documentation duplicates what's in the C file, so let's just use that. Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index a1705a0f08c7..677df7865ac8 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -751,17 +751,6 @@ struct clk_hw *clk_hw_register_gpio_mux(struct device *dev, const char *name, unsigned long flags); void clk_hw_unregister_gpio_mux(struct clk_hw *hw); -/** - * clk_register - allocate a new clock, register it and return an opaque cookie - * @dev: device that is registering this clock - * @hw: link to hardware-specific clock data - * - * clk_register is the primary interface for populating the clock tree with new - * clock nodes. It returns a pointer to the newly allocated struct clk which - * cannot be dereferenced by driver code but may be used in conjuction with the - * rest of the clock API. In the event of an error clk_register will return an - * error code; drivers must test for an error code after calling clk_register. - */ struct clk *clk_register(struct device *dev, struct clk_hw *hw); struct clk *devm_clk_register(struct device *dev, struct clk_hw *hw); -- cgit v1.2.3 From 46109648052fe778c75f199d72255c899578d6f7 Mon Sep 17 00:00:00 2001 From: Naga Sureshkumar Relli Date: Mon, 1 Apr 2019 13:29:00 +0530 Subject: spi: spi-mem: export spi_mem_default_supports_op() Export spi_mem_default_supports_op(), so that controller drivers can use this. spi-mem driver already exports this using EXPORT_SYMBOL, but not declared it in spi-mem.h. This patch declares spi_mem_default_supports_op() in spi-mem.h and also removes the static from the function prototype. Signed-off-by: Naga Sureshkumar Relli Signed-off-by: Mark Brown --- include/linux/spi/spi-mem.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index 3703d0dcac2e..c845cd6e22ba 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -341,6 +341,9 @@ int spi_mem_driver_register_with_owner(struct spi_mem_driver *drv, void spi_mem_driver_unregister(struct spi_mem_driver *drv); +bool spi_mem_default_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op); + #define spi_mem_driver_register(__drv) \ spi_mem_driver_register_with_owner(__drv, THIS_MODULE) -- cgit v1.2.3 From 37686b1353cfc30e127cef811959cdbcd0495d98 Mon Sep 17 00:00:00 2001 From: Josh Poimboeuf Date: Thu, 7 Mar 2019 11:48:02 -0600 Subject: tracing: Improve "if" macro code generation With CONFIG_PROFILE_ALL_BRANCHES=y, the "if" macro converts the conditional to an array index. This can cause GCC to create horrible code. When there are nested ifs, the generated code uses register values to encode branching decisions. Make it easier for GCC to optimize by keeping the conditional as a conditional rather than converting it to an integer. This shrinks the generated code quite a bit, and also makes the code sane enough for objtool to understand. Reported-by: Peter Zijlstra Signed-off-by: Josh Poimboeuf Signed-off-by: Peter Zijlstra (Intel) Cc: Borislav Petkov Cc: Linus Torvalds Cc: Thomas Gleixner Cc: brgerst@gmail.com Cc: catalin.marinas@arm.com Cc: dvlasenk@redhat.com Cc: dvyukov@google.com Cc: hpa@zytor.com Cc: james.morse@arm.com Cc: julien.thierry@arm.com Cc: luto@amacapital.net Cc: luto@kernel.org Cc: rostedt@goodmis.org Cc: valentin.schneider@arm.com Cc: will.deacon@arm.com Link: https://lkml.kernel.org/r/20190307174802.46fmpysxyo35hh43@treble Signed-off-by: Ingo Molnar --- include/linux/compiler.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 445348facea9..d58aa0db05f9 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -67,7 +67,7 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val, .line = __LINE__, \ }; \ ______r = !!(cond); \ - ______f.miss_hit[______r]++; \ + ______r ? ______f.miss_hit[1]++ : ______f.miss_hit[0]++;\ ______r; \ })) #endif /* CONFIG_PROFILE_ALL_BRANCHES */ -- cgit v1.2.3 From e74deb11931ff682b59d5b9d387f7115f689698e Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 3 Apr 2019 09:39:48 +0200 Subject: x86/uaccess: Introduce user_access_{save,restore}() Introduce common helpers for when we need to safely suspend a uaccess section; for instance to generate a {KA,UB}SAN report. Signed-off-by: Peter Zijlstra (Intel) Cc: Borislav Petkov Cc: Josh Poimboeuf Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Signed-off-by: Ingo Molnar --- include/linux/uaccess.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index 37b226e8df13..2b70130af585 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -268,6 +268,8 @@ extern long strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count); #define user_access_end() do { } while (0) #define unsafe_get_user(x, ptr, err) do { if (unlikely(__get_user(x, ptr))) goto err; } while (0) #define unsafe_put_user(x, ptr, err) do { if (unlikely(__put_user(x, ptr))) goto err; } while (0) +static inline unsigned long user_access_save(void) { return 0UL; } +static inline void user_access_restore(unsigned long flags) { } #endif #ifdef CONFIG_HARDENED_USERCOPY -- cgit v1.2.3 From 1279e41d535e28cc3b56fa4a09e71a709641cae6 Mon Sep 17 00:00:00 2001 From: Shaokun Zhang Date: Wed, 3 Apr 2019 14:54:24 +0800 Subject: perf/headers: Fix stale comment for struct perf_addr_filter The @inode field has been removed after: 9511bce9fe8e ("perf/core: Fix bad use of igrab()") Update the description. Signed-off-by: Shaokun Zhang Signed-off-by: Peter Zijlstra (Intel) Cc: Alexander Shishkin Cc: Arnaldo Carvalho de Melo Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Song Liu Cc: Stephane Eranian Cc: Thomas Gleixner Cc: Vince Weaver Link: https://lkml.kernel.org/r/1554274464-5739-1-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index e47ef764f613..085a95e2582a 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -464,7 +464,7 @@ enum perf_addr_filter_action_t { /** * struct perf_addr_filter - address range filter definition * @entry: event's filter list linkage - * @inode: object file's inode for file-based filters + * @path: object file's path for file-based filters * @offset: filter range offset * @size: filter range size (size==0 means single address trigger) * @action: filter/start/stop -- cgit v1.2.3 From 994aeb7a93e43d28f6074195ccb03a384342e1bf Mon Sep 17 00:00:00 2001 From: "Joel Fernandes (Google)" Date: Wed, 20 Mar 2019 20:34:24 -0400 Subject: sched_domain: Annotate RCU pointers properly The scheduler uses RCU API in various places to access sched_domain pointers. These cause sparse errors as below. Many new errors show up because of an annotation check I added to rcu_assign_pointer(). Let us annotate the pointers correctly which also will help sparse catch any potential future bugs. This fixes the following sparse errors: rt.c:1681:9: error: incompatible types in comparison expression deadline.c:1904:9: error: incompatible types in comparison expression core.c:519:9: error: incompatible types in comparison expression core.c:1634:17: error: incompatible types in comparison expression fair.c:6193:14: error: incompatible types in comparison expression fair.c:9883:22: error: incompatible types in comparison expression fair.c:9897:9: error: incompatible types in comparison expression sched.h:1287:9: error: incompatible types in comparison expression topology.c:612:9: error: incompatible types in comparison expression topology.c:615:9: error: incompatible types in comparison expression sched.h:1300:9: error: incompatible types in comparison expression topology.c:618:9: error: incompatible types in comparison expression sched.h:1287:9: error: incompatible types in comparison expression topology.c:621:9: error: incompatible types in comparison expression sched.h:1300:9: error: incompatible types in comparison expression topology.c:624:9: error: incompatible types in comparison expression topology.c:671:9: error: incompatible types in comparison expression stats.c:45:17: error: incompatible types in comparison expression fair.c:5998:15: error: incompatible types in comparison expression fair.c:5989:15: error: incompatible types in comparison expression fair.c:5998:15: error: incompatible types in comparison expression fair.c:5989:15: error: incompatible types in comparison expression fair.c:6120:19: error: incompatible types in comparison expression fair.c:6506:14: error: incompatible types in comparison expression fair.c:6515:14: error: incompatible types in comparison expression fair.c:6623:9: error: incompatible types in comparison expression fair.c:5970:17: error: incompatible types in comparison expression fair.c:8642:21: error: incompatible types in comparison expression fair.c:9253:9: error: incompatible types in comparison expression fair.c:9331:9: error: incompatible types in comparison expression fair.c:9519:15: error: incompatible types in comparison expression fair.c:9533:14: error: incompatible types in comparison expression fair.c:9542:14: error: incompatible types in comparison expression fair.c:9567:14: error: incompatible types in comparison expression fair.c:9597:14: error: incompatible types in comparison expression fair.c:9421:16: error: incompatible types in comparison expression fair.c:9421:16: error: incompatible types in comparison expression Signed-off-by: Joel Fernandes (Google) Signed-off-by: Peter Zijlstra (Intel) [ From an RCU perspective. ] Reviewed-by: Paul E. McKenney Cc: Josh Triplett Cc: Lai Jiangshan Cc: Linus Torvalds Cc: Luc Van Oostenryck Cc: Mathieu Desnoyers Cc: Mike Galbraith Cc: Morten Rasmussen Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner Cc: keescook@chromium.org Cc: kernel-hardening@lists.openwall.com Cc: kernel-team@android.com Link: https://lkml.kernel.org/r/20190321003426.160260-3-joel@joelfernandes.org Signed-off-by: Ingo Molnar --- include/linux/sched/topology.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h index 57c7ed3fe465..cfc0a89a7159 100644 --- a/include/linux/sched/topology.h +++ b/include/linux/sched/topology.h @@ -76,8 +76,8 @@ struct sched_domain_shared { struct sched_domain { /* These fields must be setup */ - struct sched_domain *parent; /* top domain must be null terminated */ - struct sched_domain *child; /* bottom domain must be null terminated */ + struct sched_domain __rcu *parent; /* top domain must be null terminated */ + struct sched_domain __rcu *child; /* bottom domain must be null terminated */ struct sched_group *groups; /* the balancing groups of the domain */ unsigned long min_interval; /* Minimum balance interval ms */ unsigned long max_interval; /* Maximum balance interval ms */ -- cgit v1.2.3 From 03f4b48edae7d936c5bf23488c1ce3fbe7fc2733 Mon Sep 17 00:00:00 2001 From: "Joel Fernandes (Google)" Date: Wed, 20 Mar 2019 20:34:25 -0400 Subject: rcuwait: Annotate task_struct with __rcu This suppresses sparse error generated due to the recently added rcu_assign_pointer sparse check. percpu-rwsem.c:162:9: sparse: error: incompatible types in comparison expression exit.c:316:16: sparse: error: incompatible types in comparison expression Signed-off-by: Joel Fernandes (Google) Signed-off-by: Peter Zijlstra (Intel) [ From an RCU perspective. ] Reviewed-by: Paul E. McKenney Cc: Josh Triplett Cc: Lai Jiangshan Cc: Linus Torvalds Cc: Luc Van Oostenryck Cc: Mathieu Desnoyers Cc: Mike Galbraith Cc: Morten Rasmussen Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner Cc: keescook@chromium.org Cc: kernel-hardening@lists.openwall.com Cc: kernel-team@android.com Link: https://lkml.kernel.org/r/20190321003426.160260-4-joel@joelfernandes.org Signed-off-by: Ingo Molnar --- include/linux/rcuwait.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/rcuwait.h b/include/linux/rcuwait.h index 90bfa3279a01..563290fc194f 100644 --- a/include/linux/rcuwait.h +++ b/include/linux/rcuwait.h @@ -18,7 +18,7 @@ * awoken. */ struct rcuwait { - struct task_struct *task; + struct task_struct __rcu *task; }; #define __RCUWAIT_INITIALIZER(name) \ -- cgit v1.2.3 From 46ad0840b1584b92b5ff2cc3ed0b011dd6b8e0f1 Mon Sep 17 00:00:00 2001 From: Waiman Long Date: Fri, 22 Mar 2019 10:30:06 -0400 Subject: locking/rwsem: Remove arch specific rwsem files As the generic rwsem-xadd code is using the appropriate acquire and release versions of the atomic operations, the arch specific rwsem.h files will not be that much faster than the generic code as long as the atomic functions are properly implemented. So we can remove those arch specific rwsem.h and stop building asm/rwsem.h to reduce maintenance effort. Currently, only x86, alpha and ia64 have implemented architecture specific fast paths. I don't have access to alpha and ia64 systems for testing, but they are legacy systems that are not likely to be updated to the latest kernel anyway. By using a rwsem microbenchmark, the total locking rates on a 4-socket 56-core 112-thread x86-64 system before and after the patch were as follows (mixed means equal # of read and write locks): Before Patch After Patch # of Threads wlock rlock mixed wlock rlock mixed ------------ ----- ----- ----- ----- ----- ----- 1 29,201 30,143 29,458 28,615 30,172 29,201 2 6,807 13,299 1,171 7,725 15,025 1,804 4 6,504 12,755 1,520 7,127 14,286 1,345 8 6,762 13,412 764 6,826 13,652 726 16 6,693 15,408 662 6,599 15,938 626 32 6,145 15,286 496 5,549 15,487 511 64 5,812 15,495 60 5,858 15,572 60 There were some run-to-run variations for the multi-thread tests. For x86-64, using the generic C code fast path seems to be a little bit faster than the assembly version with low lock contention. Looking at the assembly version of the fast paths, there are assembly to/from C code wrappers that save and restore all the callee-clobbered registers (7 registers on x86-64). The assembly generated from the generic C code doesn't need to do that. That may explain the slight performance gain here. The generic asm rwsem.h can also be merged into kernel/locking/rwsem.h with no code change as no other code other than those under kernel/locking needs to access the internal rwsem macros and functions. Signed-off-by: Waiman Long Signed-off-by: Peter Zijlstra (Intel) Acked-by: Linus Torvalds Cc: Andrew Morton Cc: Arnd Bergmann Cc: Borislav Petkov Cc: Davidlohr Bueso Cc: H. Peter Anvin Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Tim Chen Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Cc: linux-c6x-dev@linux-c6x.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-riscv@lists.infradead.org Cc: linux-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Cc: linuxppc-dev@lists.ozlabs.org Cc: nios2-dev@lists.rocketboards.org Cc: openrisc@lists.librecores.org Cc: uclinux-h8-devel@lists.sourceforge.jp Link: https://lkml.kernel.org/r/20190322143008.21313-2-longman@redhat.com Signed-off-by: Ingo Molnar --- include/linux/rwsem.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 67dbb57508b1..6e56006b2cb6 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -57,15 +57,13 @@ extern struct rw_semaphore *rwsem_down_write_failed_killable(struct rw_semaphore extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *); extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem); -/* Include the arch specific part */ -#include - /* In all implementations count != 0 means locked */ static inline int rwsem_is_locked(struct rw_semaphore *sem) { return atomic_long_read(&sem->count) != 0; } +#define RWSEM_UNLOCKED_VALUE 0L #define __RWSEM_INIT_COUNT(name) .count = ATOMIC_LONG_INIT(RWSEM_UNLOCKED_VALUE) #endif -- cgit v1.2.3 From 390a0c62c23cb026cd4664a66f6f45fed3a215f6 Mon Sep 17 00:00:00 2001 From: Waiman Long Date: Fri, 22 Mar 2019 10:30:07 -0400 Subject: locking/rwsem: Remove rwsem-spinlock.c & use rwsem-xadd.c for all archs Currently, we have two different implementation of rwsem: 1) CONFIG_RWSEM_GENERIC_SPINLOCK (rwsem-spinlock.c) 2) CONFIG_RWSEM_XCHGADD_ALGORITHM (rwsem-xadd.c) As we are going to use a single generic implementation for rwsem-xadd.c and no architecture-specific code will be needed, there is no point in keeping two different implementations of rwsem. In most cases, the performance of rwsem-spinlock.c will be worse. It also doesn't get all the performance tuning and optimizations that had been implemented in rwsem-xadd.c over the years. For simplication, we are going to remove rwsem-spinlock.c and make all architectures use a single implementation of rwsem - rwsem-xadd.c. All references to RWSEM_GENERIC_SPINLOCK and RWSEM_XCHGADD_ALGORITHM in the code are removed. Suggested-by: Peter Zijlstra Signed-off-by: Waiman Long Signed-off-by: Peter Zijlstra (Intel) Acked-by: Linus Torvalds Cc: Andrew Morton Cc: Arnd Bergmann Cc: Borislav Petkov Cc: Davidlohr Bueso Cc: H. Peter Anvin Cc: Paul E. McKenney Cc: Thomas Gleixner Cc: Tim Chen Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Cc: linux-c6x-dev@linux-c6x.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-riscv@lists.infradead.org Cc: linux-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Cc: linuxppc-dev@lists.ozlabs.org Cc: nios2-dev@lists.rocketboards.org Cc: openrisc@lists.librecores.org Cc: uclinux-h8-devel@lists.sourceforge.jp Link: https://lkml.kernel.org/r/20190322143008.21313-3-longman@redhat.com Signed-off-by: Ingo Molnar --- include/linux/rwsem-spinlock.h | 47 ------------------------------------------ include/linux/rwsem.h | 5 ----- 2 files changed, 52 deletions(-) delete mode 100644 include/linux/rwsem-spinlock.h (limited to 'include/linux') diff --git a/include/linux/rwsem-spinlock.h b/include/linux/rwsem-spinlock.h deleted file mode 100644 index e47568363e5e..000000000000 --- a/include/linux/rwsem-spinlock.h +++ /dev/null @@ -1,47 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* rwsem-spinlock.h: fallback C implementation - * - * Copyright (c) 2001 David Howells (dhowells@redhat.com). - * - Derived partially from ideas by Andrea Arcangeli - * - Derived also from comments by Linus - */ - -#ifndef _LINUX_RWSEM_SPINLOCK_H -#define _LINUX_RWSEM_SPINLOCK_H - -#ifndef _LINUX_RWSEM_H -#error "please don't include linux/rwsem-spinlock.h directly, use linux/rwsem.h instead" -#endif - -#ifdef __KERNEL__ -/* - * the rw-semaphore definition - * - if count is 0 then there are no active readers or writers - * - if count is +ve then that is the number of active readers - * - if count is -1 then there is one active writer - * - if wait_list is not empty, then there are processes waiting for the semaphore - */ -struct rw_semaphore { - __s32 count; - raw_spinlock_t wait_lock; - struct list_head wait_list; -#ifdef CONFIG_DEBUG_LOCK_ALLOC - struct lockdep_map dep_map; -#endif -}; - -#define RWSEM_UNLOCKED_VALUE 0x00000000 - -extern void __down_read(struct rw_semaphore *sem); -extern int __must_check __down_read_killable(struct rw_semaphore *sem); -extern int __down_read_trylock(struct rw_semaphore *sem); -extern void __down_write(struct rw_semaphore *sem); -extern int __must_check __down_write_killable(struct rw_semaphore *sem); -extern int __down_write_trylock(struct rw_semaphore *sem); -extern void __up_read(struct rw_semaphore *sem); -extern void __up_write(struct rw_semaphore *sem); -extern void __downgrade_write(struct rw_semaphore *sem); -extern int rwsem_is_locked(struct rw_semaphore *sem); - -#endif /* __KERNEL__ */ -#endif /* _LINUX_RWSEM_SPINLOCK_H */ diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 6e56006b2cb6..0fc41062c649 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -22,10 +22,6 @@ struct rw_semaphore; -#ifdef CONFIG_RWSEM_GENERIC_SPINLOCK -#include /* use a generic implementation */ -#define __RWSEM_INIT_COUNT(name) .count = RWSEM_UNLOCKED_VALUE -#else /* All arch specific implementations share the same struct */ struct rw_semaphore { atomic_long_t count; @@ -65,7 +61,6 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem) #define RWSEM_UNLOCKED_VALUE 0L #define __RWSEM_INIT_COUNT(name) .count = ATOMIC_LONG_INIT(RWSEM_UNLOCKED_VALUE) -#endif /* Common initializer macros and functions */ -- cgit v1.2.3 From a54275f4ab204137c9995c686c7f1cd2682cc0a4 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 21 Mar 2019 11:00:21 -0700 Subject: bus: ti-sysc: Add quirk handling for external optional functional clock We cannot access mcpdm registers at all unless there is an optional pdmclk configured. As this is currently only needed for mcpdm, let's check for mcpdm in sysc_get_clocks(). If it turns out to be needed for other modules too, we can add more flags to the quirks table for this. Signed-off-by: Tony Lindgren --- include/linux/platform_data/ti-sysc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h index fa97b8c5d26d..1384e5cdd310 100644 --- a/include/linux/platform_data/ti-sysc.h +++ b/include/linux/platform_data/ti-sysc.h @@ -46,6 +46,7 @@ struct sysc_regbits { s8 emufree_shift; }; +#define SYSC_QUIRK_EXT_OPT_CLOCK BIT(10) #define SYSC_QUIRK_LEGACY_IDLE BIT(9) #define SYSC_QUIRK_RESET_STATUS BIT(8) #define SYSC_QUIRK_NO_IDLE BIT(7) -- cgit v1.2.3 From 06ee7115b0d1742de745ad143fb5e06d77d27fba Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Mon, 1 Apr 2019 21:27:40 -0700 Subject: bpf: add verifier stats and log_level bit 2 In order to understand the verifier bottlenecks add various stats and extend log_level: log_level 1 and 2 are kept as-is: bit 0 - level=1 - print every insn and verifier state at branch points bit 1 - level=2 - print every insn and verifier state at every insn bit 2 - level=4 - print verifier error and stats at the end of verification When verifier rejects the program the libbpf is trying to load the program twice. Once with log_level=0 (no messages, only error code is reported to user space) and second time with log_level=1 to tell the user why the verifier rejected it. With introduction of bit 2 - level=4 the libbpf can choose to always use that level and load programs once, since the verification speed is not affected and in case of error the verbose message will be available. Note that the verifier stats are not part of uapi just like all other verbose messages. They're expected to change in the future. Signed-off-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann --- include/linux/bpf_verifier.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index 7d8228d1c898..f7e15eeb60bb 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -248,6 +248,12 @@ static inline bool bpf_verifier_log_full(const struct bpf_verifier_log *log) return log->len_used >= log->len_total - 1; } +#define BPF_LOG_LEVEL1 1 +#define BPF_LOG_LEVEL2 2 +#define BPF_LOG_STATS 4 +#define BPF_LOG_LEVEL (BPF_LOG_LEVEL1 | BPF_LOG_LEVEL2) +#define BPF_LOG_MASK (BPF_LOG_LEVEL | BPF_LOG_STATS) + static inline bool bpf_verifier_log_needed(const struct bpf_verifier_log *log) { return log->level && log->ubuf && !bpf_verifier_log_full(log); @@ -284,6 +290,21 @@ struct bpf_verifier_env { struct bpf_verifier_log log; struct bpf_subprog_info subprog_info[BPF_MAX_SUBPROGS + 1]; u32 subprog_cnt; + /* number of instructions analyzed by the verifier */ + u32 insn_processed; + /* total verification time */ + u64 verification_time; + /* maximum number of verifier states kept in 'branching' instructions */ + u32 max_states_per_insn; + /* total number of allocated verifier states */ + u32 total_states; + /* some states are freed during program analysis. + * this is peak number of states. this number dominates kernel + * memory consumption during verification + */ + u32 peak_states; + /* longest register parentage chain walked for liveness marking */ + u32 longest_mark_read_walk; }; __printf(2, 0) void bpf_verifier_vlog(struct bpf_verifier_log *log, -- cgit v1.2.3 From 9f4686c41bdff051f557accb531af79dd1773687 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Mon, 1 Apr 2019 21:27:41 -0700 Subject: bpf: improve verification speed by droping states Branch instructions, branch targets and calls in a bpf program are the places where the verifier remembers states that led to successful verification of the program. These states are used to prune brute force program analysis. For unprivileged programs there is a limit of 64 states per such 'branching' instructions (maximum length is tracked by max_states_per_insn counter introduced in the previous patch). Simply reducing this threshold to 32 or lower increases insn_processed metric to the point that small valid programs get rejected. For root programs there is no limit and cilium programs can have max_states_per_insn to be 100 or higher. Walking 100+ states multiplied by number of 'branching' insns during verification consumes significant amount of cpu time. Turned out simple LRU-like mechanism can be used to remove states that unlikely will be helpful in future search pruning. This patch introduces hit_cnt and miss_cnt counters: hit_cnt - this many times this state successfully pruned the search miss_cnt - this many times this state was not equivalent to other states (and that other states were added to state list) The heuristic introduced in this patch is: if (sl->miss_cnt > sl->hit_cnt * 3 + 3) /* drop this state from future considerations */ Higher numbers increase max_states_per_insn (allow more states to be considered for pruning) and slow verification speed, but do not meaningfully reduce insn_processed metric. Lower numbers drop too many states and insn_processed increases too much. Many different formulas were considered. This one is simple and works well enough in practice. (the analysis was done on selftests/progs/* and on cilium programs) The end result is this heuristic improves verification speed by 10 times. Large synthetic programs that used to take a second more now take 1/10 of a second. In cases where max_states_per_insn used to be 100 or more, now it's ~10. There is a slight increase in insn_processed for cilium progs: before after bpf_lb-DLB_L3.o 1831 1838 bpf_lb-DLB_L4.o 3029 3218 bpf_lb-DUNKNOWN.o 1064 1064 bpf_lxc-DDROP_ALL.o 26309 26935 bpf_lxc-DUNKNOWN.o 33517 34439 bpf_netdev.o 9713 9721 bpf_overlay.o 6184 6184 bpf_lcx_jit.o 37335 39389 And 2-3 times improvement in the verification speed. Signed-off-by: Alexei Starovoitov Reviewed-by: Jakub Kicinski Signed-off-by: Daniel Borkmann --- include/linux/bpf_verifier.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index f7e15eeb60bb..fc8254d6b569 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -207,6 +207,7 @@ struct bpf_verifier_state { struct bpf_verifier_state_list { struct bpf_verifier_state state; struct bpf_verifier_state_list *next; + int miss_cnt, hit_cnt; }; /* Possible states for alu_state member. */ @@ -280,6 +281,7 @@ struct bpf_verifier_env { bool strict_alignment; /* perform strict pointer alignment checks */ struct bpf_verifier_state *cur_state; /* current verifier state */ struct bpf_verifier_state_list **explored_states; /* search pruning optimization */ + struct bpf_verifier_state_list *free_list; struct bpf_map *used_maps[MAX_USED_MAPS]; /* array of map's used by eBPF program */ u32 used_map_cnt; /* number of used maps */ u32 id_gen; /* used to generate unique reg IDs */ -- cgit v1.2.3 From c04c0d2b968ac45d6ef020316808ef6c82325a82 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Mon, 1 Apr 2019 21:27:45 -0700 Subject: bpf: increase complexity limit and maximum program size Large verifier speed improvements allow to increase verifier complexity limit. Now regardless of the program composition and its size it takes little time for the verifier to hit insn_processed limit. On typical x86 machine non-debug kernel processes 1M instructions in 1/10 of a second. (before these speed improvements specially crafted programs could be hitting multi-second verification times) Full kasan kernel with debug takes ~1 second for the same 1M insns. Hence bump the BPF_COMPLEXITY_LIMIT_INSNS limit to 1M. Also increase the number of instructions per program from 4k to internal BPF_COMPLEXITY_LIMIT_INSNS limit. 4k limit was confusing to users, since small programs with hundreds of insns could be hitting BPF_COMPLEXITY_LIMIT_INSNS limit. Sometimes adding more insns and bpf_trace_printk debug statements would make the verifier accept the program while removing code would make the verifier reject it. Some user space application started to add #define MAX_FOO to their programs and do: MAX_FOO=100; again: compile with MAX_FOO; try to load; if (fails_to_load) { reduce MAX_FOO; goto again; } to be able to fit maximum amount of processing into single program. Other users artificially split their single program into a set of programs and use all 32 iterations of tail_calls to increase compute limits. And the most advanced folks used unlimited tc-bpf filter list to execute many bpf programs. Essentially the users managed to workaround 4k insn limit. This patch removes the limit for root programs from uapi. BPF_COMPLEXITY_LIMIT_INSNS is the kernel internal limit and success to load the program no longer depends on program size, but on 'smartness' of the verifier only. The verifier will continue to get smarter with every kernel release. Signed-off-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann --- include/linux/bpf.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index f62897198844..a445194b5fb6 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -421,6 +421,7 @@ struct bpf_array { }; }; +#define BPF_COMPLEXITY_LIMIT_INSNS 1000000 /* yes. 1M insns */ #define MAX_TAIL_CALL_CNT 32 struct bpf_event_entry { -- cgit v1.2.3 From 4950c2ba49cc6f2b38dbedcfa0ff67acf761419a Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Tue, 2 Apr 2019 20:43:30 +0200 Subject: net: phy: fix autoneg mismatch case in genphy_read_status The original patch didn't consider the case that autoneg process finishes successfully but both link partners have no mode in common. In this case there's no link, nevertheless we may be interested in what the link partner advertised. Like phydev->link we set phydev->autoneg_complete in genphy_update_link() and use the stored value in genphy_read_status(). This way we don't have to read register BMSR again. Fixes: b6163f194c69 ("net: phy: improve genphy_read_status") Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- include/linux/phy.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/phy.h b/include/linux/phy.h index ad88f063e50f..ab7439b3da2b 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -390,6 +390,7 @@ struct phy_device { unsigned autoneg:1; /* The most recently read link state */ unsigned link:1; + unsigned autoneg_complete:1; /* Interrupts are enabled */ unsigned interrupts:1; -- cgit v1.2.3 From beee05dfbead2331a3183dee8ddcf10066278355 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 20 Mar 2019 12:30:10 +0100 Subject: rtc: sh: set range The SH RTC is a BCD RTC with some version having 4 digits for the year. The range for the RTCs with only 2 digits for the year was unfortunately shifted to handle 1999 to 2098. Reviewed-by: Geert Uytterhoeven Signed-off-by: Alexandre Belloni --- include/linux/rtc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/rtc.h b/include/linux/rtc.h index f89bfbb54902..588120ba372c 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -165,6 +165,7 @@ struct rtc_device { #define RTC_TIMESTAMP_BEGIN_1900 -2208989361LL /* 1900-01-01 00:00:00 */ #define RTC_TIMESTAMP_BEGIN_2000 946684800LL /* 2000-01-01 00:00:00 */ #define RTC_TIMESTAMP_END_2099 4102444799LL /* 2099-12-31 23:59:59 */ +#define RTC_TIMESTAMP_END_9999 253402300799LL /* 9999-12-31 23:59:59 */ extern struct rtc_device *devm_rtc_device_register(struct device *dev, const char *name, -- cgit v1.2.3 From 5ff404d1496e131f2fccc100cfc153ee2b34b4d3 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Thu, 21 Mar 2019 11:15:56 +0100 Subject: rtc: da9063: set range The DA9062 and DA9063 have a year register that can go up to 0x3F. Acked-by: Steve Twiss Signed-off-by: Alexandre Belloni --- include/linux/rtc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 588120ba372c..09fb4af5edab 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -164,6 +164,7 @@ struct rtc_device { /* useful timestamps */ #define RTC_TIMESTAMP_BEGIN_1900 -2208989361LL /* 1900-01-01 00:00:00 */ #define RTC_TIMESTAMP_BEGIN_2000 946684800LL /* 2000-01-01 00:00:00 */ +#define RTC_TIMESTAMP_END_2063 2966371199LL /* 2063-12-31 23:59:59 */ #define RTC_TIMESTAMP_END_2099 4102444799LL /* 2099-12-31 23:59:59 */ #define RTC_TIMESTAMP_END_9999 253402300799LL /* 9999-12-31 23:59:59 */ -- cgit v1.2.3 From d3062d1d7415cb5a37777220357aca51a491c3d7 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 22 Mar 2019 08:26:12 +0100 Subject: rtc: Fix timestamp value for RTC_TIMESTAMP_BEGIN_1900 Printing "mktime64(1900, 1, 1, 0, 0, 0)" gives -2208988800. Fixes: 83bbc5ac63326433 ("rtc: Add useful timestamp definitions") Signed-off-by: Geert Uytterhoeven Signed-off-by: Alexandre Belloni --- include/linux/rtc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 09fb4af5edab..48d3f8e0b64f 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -162,7 +162,7 @@ struct rtc_device { #define to_rtc_device(d) container_of(d, struct rtc_device, dev) /* useful timestamps */ -#define RTC_TIMESTAMP_BEGIN_1900 -2208989361LL /* 1900-01-01 00:00:00 */ +#define RTC_TIMESTAMP_BEGIN_1900 -2208988800LL /* 1900-01-01 00:00:00 */ #define RTC_TIMESTAMP_BEGIN_2000 946684800LL /* 2000-01-01 00:00:00 */ #define RTC_TIMESTAMP_END_2063 2966371199LL /* 2063-12-31 23:59:59 */ #define RTC_TIMESTAMP_END_2099 4102444799LL /* 2099-12-31 23:59:59 */ -- cgit v1.2.3 From 24e516049360eda85cf3fe9903221d43886c2689 Mon Sep 17 00:00:00 2001 From: Neil Leeder Date: Tue, 26 Mar 2019 15:17:50 +0000 Subject: ACPI/IORT: Add support for PMCG Add support for the SMMU Performance Monitor Counter Group information from ACPI. This is in preparation for its use in the SMMUv3 PMU driver. Signed-off-by: Neil Leeder Signed-off-by: Hanjun Guo Signed-off-by: Shameer Kolothum Reviewed-by: Robin Murphy Acked-by: Lorenzo Pieralisi Signed-off-by: Will Deacon --- include/linux/acpi_iort.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h index 38cd77b39a64..052ef7b9f985 100644 --- a/include/linux/acpi_iort.h +++ b/include/linux/acpi_iort.h @@ -26,6 +26,13 @@ #define IORT_IRQ_MASK(irq) (irq & 0xffffffffULL) #define IORT_IRQ_TRIGGER_MASK(irq) ((irq >> 32) & 0xffffffffULL) +/* + * PMCG model identifiers for use in smmu pmu driver. Please note + * that this is purely for the use of software and has nothing to + * do with hardware or with IORT specification. + */ +#define IORT_SMMU_V3_PMCG_GENERIC 0x00000000 /* Generic SMMUv3 PMCG */ + int iort_register_domain_token(int trans_id, phys_addr_t base, struct fwnode_handle *fw_node); void iort_deregister_domain_token(int trans_id); -- cgit v1.2.3 From 1537ad15c9c59ce852748578eb5633139053e86b Mon Sep 17 00:00:00 2001 From: Ondrej Mosnacek Date: Wed, 3 Apr 2019 09:29:41 +0200 Subject: kernfs: fix xattr name handling in LSM helpers The implementation of kernfs_security_xattr_*() helpers reuses the kernfs_node_xattr_*() functions, which take the suffix of the xattr name and extract full xattr name from it using xattr_full_name(). However, this function relies on the fact that the suffix passed to xattr handlers from VFS is always constructed from the full name by just incerementing the pointer. This doesn't necessarily hold for the callers of kernfs_security_xattr_*(), so their usage will easily lead to out-of-bounds access. Fix this by moving the xattr name reconstruction to the VFS xattr handlers and replacing the kernfs_security_xattr_*() helpers with more general kernfs_xattr_*() helpers that take full xattr name and allow accessing all kernfs node's xattrs. Reported-by: kernel test robot Fixes: b230d5aba2d1 ("LSM: add new hook for kernfs node initialization") Fixes: ec882da5cda9 ("selinux: implement the kernfs_init_security hook") Signed-off-by: Ondrej Mosnacek Signed-off-by: Paul Moore --- include/linux/kernfs.h | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index 39eea07c2900..7987e0f89b69 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -371,10 +371,10 @@ __poll_t kernfs_generic_poll(struct kernfs_open_file *of, struct poll_table_struct *pt); void kernfs_notify(struct kernfs_node *kn); -int kernfs_security_xattr_get(struct kernfs_node *kn, const char *suffix, - void *value, size_t size); -int kernfs_security_xattr_set(struct kernfs_node *kn, const char *suffix, - void *value, size_t size, int flags); +int kernfs_xattr_get(struct kernfs_node *kn, const char *name, + void *value, size_t size); +int kernfs_xattr_set(struct kernfs_node *kn, const char *name, + const void *value, size_t size, int flags); const void *kernfs_super_ns(struct super_block *sb); int kernfs_get_tree(struct fs_context *fc); @@ -478,14 +478,12 @@ static inline int kernfs_setattr(struct kernfs_node *kn, static inline void kernfs_notify(struct kernfs_node *kn) { } -static inline int kernfs_security_xattr_get(struct kernfs_node *kn, - const char *suffix, void *value, - size_t size) +static inline int kernfs_xattr_get(struct kernfs_node *kn, const char *name, + void *value, size_t size) { return -ENOSYS; } -static inline int kernfs_security_xattr_set(struct kernfs_node *kn, - const char *suffix, void *value, - size_t size, int flags) +static inline int kernfs_xattr_set(struct kernfs_node *kn, const char *name, + const void *value, size_t size, int flags) { return -ENOSYS; } static inline const void *kernfs_super_ns(struct super_block *sb) -- cgit v1.2.3 From 2b24e6f63ac9e817630424c6d8f008256348dfc4 Mon Sep 17 00:00:00 2001 From: Johannes Thumshirn Date: Wed, 3 Apr 2019 11:15:19 +0200 Subject: block: bio: ensure newly added bio flags don't override BVEC_POOL_IDX With the introduction of BIO_NO_PAGE_REF we've used up all available bits in bio::bi_flags. Convert the defines of the flags to an enum and add a BUILD_BUG_ON() call to make sure no-one adds a new one and thus overrides the BVEC_POOL_IDX causing crashes. Reviewed-by: Ming Lei Reviewed-by: Hannes Reinecke Reviewed-by: Bart Van Assche Reviewed-by: Christoph Hellwig Signed-off-by: Johannes Thumshirn Signed-off-by: Jens Axboe --- include/linux/blk_types.h | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) (limited to 'include/linux') diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 791fee35df88..be418275763c 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -215,21 +215,24 @@ struct bio { /* * bio flags */ -#define BIO_NO_PAGE_REF 0 /* don't put release vec pages */ -#define BIO_SEG_VALID 1 /* bi_phys_segments valid */ -#define BIO_CLONED 2 /* doesn't own data */ -#define BIO_BOUNCED 3 /* bio is a bounce bio */ -#define BIO_USER_MAPPED 4 /* contains user pages */ -#define BIO_NULL_MAPPED 5 /* contains invalid user pages */ -#define BIO_QUIET 6 /* Make BIO Quiet */ -#define BIO_CHAIN 7 /* chained bio, ->bi_remaining in effect */ -#define BIO_REFFED 8 /* bio has elevated ->bi_cnt */ -#define BIO_THROTTLED 9 /* This bio has already been subjected to +enum { + BIO_NO_PAGE_REF, /* don't put release vec pages */ + BIO_SEG_VALID, /* bi_phys_segments valid */ + BIO_CLONED, /* doesn't own data */ + BIO_BOUNCED, /* bio is a bounce bio */ + BIO_USER_MAPPED, /* contains user pages */ + BIO_NULL_MAPPED, /* contains invalid user pages */ + BIO_QUIET, /* Make BIO Quiet */ + BIO_CHAIN, /* chained bio, ->bi_remaining in effect */ + BIO_REFFED, /* bio has elevated ->bi_cnt */ + BIO_THROTTLED, /* This bio has already been subjected to * throttling rules. Don't do it again. */ -#define BIO_TRACE_COMPLETION 10 /* bio_endio() should trace the final completion + BIO_TRACE_COMPLETION, /* bio_endio() should trace the final completion * of this bio. */ -#define BIO_QUEUE_ENTERED 11 /* can use blk_queue_enter_live() */ -#define BIO_TRACKED 12 /* set if bio goes through the rq_qos path */ + BIO_QUEUE_ENTERED, /* can use blk_queue_enter_live() */ + BIO_TRACKED, /* set if bio goes through the rq_qos path */ + BIO_FLAG_LAST +}; /* See BVEC_POOL_OFFSET below before adding new flags */ -- cgit v1.2.3 From 24062fe85860debfdae0eeaa495f27c9971ec163 Mon Sep 17 00:00:00 2001 From: Shameer Kolothum Date: Tue, 26 Mar 2019 15:17:53 +0000 Subject: perf/smmuv3: Enable HiSilicon Erratum 162001800 quirk HiSilicon erratum 162001800 describes the limitation of SMMUv3 PMCG implementation on HiSilicon Hip08 platforms. On these platforms, the PMCG event counter registers (SMMU_PMCG_EVCNTRn) are read only and as a result it is not possible to set the initial counter period value on event monitor start. To work around this, the current value of the counter is read and used for delta calculations. OEM information from ACPI header is used to identify the affected hardware platforms. Signed-off-by: Shameer Kolothum Reviewed-by: Hanjun Guo Reviewed-by: Robin Murphy Acked-by: Lorenzo Pieralisi [will: update silicon-errata.txt and add reason string to acpi match] Signed-off-by: Will Deacon --- include/linux/acpi_iort.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h index 052ef7b9f985..723e4dfa1c14 100644 --- a/include/linux/acpi_iort.h +++ b/include/linux/acpi_iort.h @@ -32,6 +32,7 @@ * do with hardware or with IORT specification. */ #define IORT_SMMU_V3_PMCG_GENERIC 0x00000000 /* Generic SMMUv3 PMCG */ +#define IORT_SMMU_V3_PMCG_HISI_HIP08 0x00000001 /* HiSilicon HIP08 PMCG */ int iort_register_domain_token(int trans_id, phys_addr_t base, struct fwnode_handle *fw_node); -- cgit v1.2.3 From 60574d1e05b094d222162260dd9cac49f4d0996a Mon Sep 17 00:00:00 2001 From: Keith Busch Date: Mon, 11 Mar 2019 14:55:57 -0600 Subject: acpi: Create subtable parsing infrastructure Parsing entries in an ACPI table had assumed a generic header structure. There is no standard ACPI header, though, so less common layouts with different field sizes required custom parsers to go through their subtable entry list. Create the infrastructure for adding different table types so parsing the entries array may be more reused for all ACPI system tables and the common code doesn't need to be duplicated. Reviewed-by: Rafael J. Wysocki Acked-by: Jonathan Cameron Tested-by: Jonathan Cameron Signed-off-by: Keith Busch Tested-by: Brice Goglin Signed-off-by: Greg Kroah-Hartman --- include/linux/acpi.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index d5dcebd7aad3..9494d42bf507 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -141,10 +141,13 @@ enum acpi_address_range_id { /* Table Handlers */ +union acpi_subtable_headers { + struct acpi_subtable_header common; +}; typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); -typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header, +typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, const unsigned long end); /* Debugger support */ -- cgit v1.2.3 From 3bc0e8eb179deebf1c06f5c4261d362c24b26ce1 Mon Sep 17 00:00:00 2001 From: Keith Busch Date: Mon, 11 Mar 2019 14:55:58 -0600 Subject: acpi: Add HMAT to generic parsing tables The Heterogeneous Memory Attribute Table (HMAT) header has different field lengths than the existing parsing uses. Add the HMAT type to the parsing rules so it may be generically parsed. Reviewed-by: Rafael J. Wysocki Acked-by: Jonathan Cameron Tested-by: Jonathan Cameron Signed-off-by: Keith Busch Tested-by: Brice Goglin Signed-off-by: Greg Kroah-Hartman --- include/linux/acpi.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 9494d42bf507..7c7515b0767e 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -143,6 +143,7 @@ enum acpi_address_range_id { /* Table Handlers */ union acpi_subtable_headers { struct acpi_subtable_header common; + struct acpi_hmat_structure hmat; }; typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); -- cgit v1.2.3 From 08d9dbe72b1f899468b2b34f9309e88a84f440f2 Mon Sep 17 00:00:00 2001 From: Keith Busch Date: Mon, 11 Mar 2019 14:56:00 -0600 Subject: node: Link memory nodes to their compute nodes Systems may be constructed with various specialized nodes. Some nodes may provide memory, some provide compute devices that access and use that memory, and others may provide both. Nodes that provide memory are referred to as memory targets, and nodes that can initiate memory access are referred to as memory initiators. Memory targets will often have varying access characteristics from different initiators, and platforms may have ways to express those relationships. In preparation for these systems, provide interfaces for the kernel to export the memory relationship among different nodes memory targets and their initiators with symlinks to each other. If a system provides access locality for each initiator-target pair, nodes may be grouped into ranked access classes relative to other nodes. The new interface allows a subsystem to register relationships of varying classes if available and desired to be exported. A memory initiator may have multiple memory targets in the same access class. The target memory's initiators in a given class indicate the nodes access characteristics share the same performance relative to other linked initiator nodes. Each target within an initiator's access class, though, do not necessarily perform the same as each other. A memory target node may have multiple memory initiators. All linked initiators in a target's class have the same access characteristics to that target. The following example show the nodes' new sysfs hierarchy for a memory target node 'Y' with access class 0 from initiator node 'X': # symlinks -v /sys/devices/system/node/nodeX/access0/ relative: /sys/devices/system/node/nodeX/access0/targets/nodeY -> ../../nodeY # symlinks -v /sys/devices/system/node/nodeY/access0/ relative: /sys/devices/system/node/nodeY/access0/initiators/nodeX -> ../../nodeX The new attributes are added to the sysfs stable documentation. Reviewed-by: Jonathan Cameron Signed-off-by: Keith Busch Reviewed-by: Rafael J. Wysocki Tested-by: Brice Goglin Signed-off-by: Greg Kroah-Hartman --- include/linux/node.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/node.h b/include/linux/node.h index 257bb3d6d014..bb288817ed33 100644 --- a/include/linux/node.h +++ b/include/linux/node.h @@ -17,10 +17,12 @@ #include #include +#include #include struct node { struct device dev; + struct list_head access_list; #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HUGETLBFS) struct work_struct node_work; @@ -75,6 +77,10 @@ extern int register_mem_sect_under_node(struct memory_block *mem_blk, extern int unregister_mem_sect_under_nodes(struct memory_block *mem_blk, unsigned long phys_index); +extern int register_memory_node_under_compute_node(unsigned int mem_nid, + unsigned int cpu_nid, + unsigned access); + #ifdef CONFIG_HUGETLBFS extern void register_hugetlbfs_with_node(node_registration_func_t doregister, node_registration_func_t unregister); -- cgit v1.2.3 From e1cf33aafb8462c7d0a0e6349925870316f040ee Mon Sep 17 00:00:00 2001 From: Keith Busch Date: Mon, 11 Mar 2019 14:56:01 -0600 Subject: node: Add heterogenous memory access attributes Heterogeneous memory systems provide memory nodes with different latency and bandwidth performance attributes. Provide a new kernel interface for subsystems to register the attributes under the memory target node's initiator access class. If the system provides this information, applications may query these attributes when deciding which node to request memory. The following example shows the new sysfs hierarchy for a node exporting performance attributes: # tree -P "read*|write*"/sys/devices/system/node/nodeY/accessZ/initiators/ /sys/devices/system/node/nodeY/accessZ/initiators/ |-- read_bandwidth |-- read_latency |-- write_bandwidth `-- write_latency The bandwidth is exported as MB/s and latency is reported in nanoseconds. The values are taken from the platform as reported by the manufacturer. Memory accesses from an initiator node that is not one of the memory's access "Z" initiator nodes linked in the same directory may observe different performance than reported here. When a subsystem makes use of this interface, initiators of a different access number may not have the same performance relative to initiators in other access numbers, or omitted from the any access class' initiators. Descriptions for memory access initiator performance access attributes are added to sysfs stable documentation. Acked-by: Jonathan Cameron Tested-by: Jonathan Cameron Signed-off-by: Keith Busch Reviewed-by: Rafael J. Wysocki Tested-by: Brice Goglin Signed-off-by: Greg Kroah-Hartman --- include/linux/node.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'include/linux') diff --git a/include/linux/node.h b/include/linux/node.h index bb288817ed33..4139d728f8b3 100644 --- a/include/linux/node.h +++ b/include/linux/node.h @@ -20,6 +20,32 @@ #include #include +/** + * struct node_hmem_attrs - heterogeneous memory performance attributes + * + * @read_bandwidth: Read bandwidth in MB/s + * @write_bandwidth: Write bandwidth in MB/s + * @read_latency: Read latency in nanoseconds + * @write_latency: Write latency in nanoseconds + */ +struct node_hmem_attrs { + unsigned int read_bandwidth; + unsigned int write_bandwidth; + unsigned int read_latency; + unsigned int write_latency; +}; + +#ifdef CONFIG_HMEM_REPORTING +void node_set_perf_attrs(unsigned int nid, struct node_hmem_attrs *hmem_attrs, + unsigned access); +#else +static inline void node_set_perf_attrs(unsigned int nid, + struct node_hmem_attrs *hmem_attrs, + unsigned access) +{ +} +#endif + struct node { struct device dev; struct list_head access_list; -- cgit v1.2.3 From acc02a109b0497e917c83f986a89c51e47d0022c Mon Sep 17 00:00:00 2001 From: Keith Busch Date: Mon, 11 Mar 2019 14:56:02 -0600 Subject: node: Add memory-side caching attributes System memory may have caches to help improve access speed to frequently requested address ranges. While the system provided cache is transparent to the software accessing these memory ranges, applications can optimize their own access based on cache attributes. Provide a new API for the kernel to register these memory-side caches under the memory node that provides it. The new sysfs representation is modeled from the existing cpu cacheinfo attributes, as seen from /sys/devices/system/cpu//cache/. Unlike CPU cacheinfo though, the node cache level is reported from the view of the memory. A higher level number is nearer to the CPU, while lower levels are closer to the last level memory. The exported attributes are the cache size, the line size, associativity indexing, and write back policy, and add the attributes for the system memory caches to sysfs stable documentation. Signed-off-by: Keith Busch Reviewed-by: Rafael J. Wysocki Reviewed-by: Brice Goglin Tested-by: Brice Goglin Signed-off-by: Greg Kroah-Hartman --- include/linux/node.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) (limited to 'include/linux') diff --git a/include/linux/node.h b/include/linux/node.h index 4139d728f8b3..1a557c589ecb 100644 --- a/include/linux/node.h +++ b/include/linux/node.h @@ -35,10 +35,45 @@ struct node_hmem_attrs { unsigned int write_latency; }; +enum cache_indexing { + NODE_CACHE_DIRECT_MAP, + NODE_CACHE_INDEXED, + NODE_CACHE_OTHER, +}; + +enum cache_write_policy { + NODE_CACHE_WRITE_BACK, + NODE_CACHE_WRITE_THROUGH, + NODE_CACHE_WRITE_OTHER, +}; + +/** + * struct node_cache_attrs - system memory caching attributes + * + * @indexing: The ways memory blocks may be placed in cache + * @write_policy: Write back or write through policy + * @size: Total size of cache in bytes + * @line_size: Number of bytes fetched on a cache miss + * @level: The cache hierarchy level + */ +struct node_cache_attrs { + enum cache_indexing indexing; + enum cache_write_policy write_policy; + u64 size; + u16 line_size; + u8 level; +}; + #ifdef CONFIG_HMEM_REPORTING +void node_add_cache(unsigned int nid, struct node_cache_attrs *cache_attrs); void node_set_perf_attrs(unsigned int nid, struct node_hmem_attrs *hmem_attrs, unsigned access); #else +static inline void node_add_cache(unsigned int nid, + struct node_cache_attrs *cache_attrs) +{ +} + static inline void node_set_perf_attrs(unsigned int nid, struct node_hmem_attrs *hmem_attrs, unsigned access) @@ -53,6 +88,10 @@ struct node { #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HUGETLBFS) struct work_struct node_work; #endif +#ifdef CONFIG_HMEM_REPORTING + struct list_head cache_attrs; + struct device *cache_dev; +#endif }; struct memory_block; -- cgit v1.2.3 From f69e00bd21aa6a1961c521b6eb199137fcb8a76a Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 22 Feb 2019 11:14:44 +0100 Subject: gpio: mmio: Support two direction registers It turns out that one specific hardware has two direction registers: one to set a GPIO line as input and another one to set a GPIO line as output. So in theory a line can be configured as input and output at the same time. Make the MMIO GPIO helper deal with this: store both registers in the state container, use both in the generic code if present. Synchronize the input register to the output register when we register a GPIO chip, with the output settings taking precedence. Keep the helper variable to detect inverted direction semantics (only direction in register) but augment the code to be more straight-forward for the generic case when setting the registers. Fix some flunky with unreadable direction registers at the same time as we're touching this code. Cc: David Woods Cc: Shravan Kumar Ramani Signed-off-by: Linus Walleij --- include/linux/gpio/driver.h | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 01497910f023..95a51794c24a 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -227,9 +227,13 @@ struct gpio_irq_chip { * @reg_dat: data (in) register for generic GPIO * @reg_set: output set register (out=high) for generic GPIO * @reg_clr: output clear register (out=low) for generic GPIO - * @reg_dir: direction setting register for generic GPIO + * @reg_dir_out: direction out setting register for generic GPIO + * @reg_dir_in: direction in setting register for generic GPIO * @bgpio_dir_inverted: indicates that the direction register is inverted - * (gpiolib private state variable) + * (gpiolib private state variable) this means @reg_dir_in is + * available but not @reg_dir_out. + * @bgpio_dir_unreadable: indicates that the direction register(s) cannot + * be read and we need to rely on out internal state tracking. * @bgpio_bits: number of register bits used for a generic GPIO i.e. * * 8 * @bgpio_lock: used to lock chip->bgpio_data. Also, this is needed to keep @@ -237,7 +241,8 @@ struct gpio_irq_chip { * @bgpio_data: shadowed data register for generic GPIO to clear/set bits * safely. * @bgpio_dir: shadowed direction register for generic GPIO to clear/set - * direction safely. + * direction safely. A "1" in this word means the line is set as + * output. * * A gpio_chip can help platforms abstract various sources of GPIOs so * they can all be accessed through a common programing interface. @@ -298,8 +303,10 @@ struct gpio_chip { void __iomem *reg_dat; void __iomem *reg_set; void __iomem *reg_clr; - void __iomem *reg_dir; + void __iomem *reg_dir_out; + void __iomem *reg_dir_in; bool bgpio_dir_inverted; + bool bgpio_dir_unreadable; int bgpio_bits; spinlock_t bgpio_lock; unsigned long bgpio_data; -- cgit v1.2.3 From fb1589710efe73228c9acdd1479a520a609c08a0 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 21 Feb 2019 18:02:46 +0100 Subject: iio: Allow to read mount matrix from ACPI Currently mount matrix is allowed in Device Tree, though there is no technical issue to extend it to support ACPI. Convert the function to use device_property_read_string_array() and thus allow to read mount matrix from ACPI if available. Example of use in _DSD method: Name (_DSD, Package () { ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"), Package () { Package () { "mount-matrix", Package() { "1", "0", "0", "0", "0.866", "0.5", "0", "-0.5", "0.866", } }, } }) At the same time drop the "of" prefix from its name and convert current users. No functional change intended. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Signed-off-by: Jonathan Cameron --- include/linux/iio/iio.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index a74cb177dc6f..bb10c1bee301 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -130,8 +130,8 @@ struct iio_mount_matrix { ssize_t iio_show_mount_matrix(struct iio_dev *indio_dev, uintptr_t priv, const struct iio_chan_spec *chan, char *buf); -int of_iio_read_mount_matrix(const struct device *dev, const char *propname, - struct iio_mount_matrix *matrix); +int iio_read_mount_matrix(struct device *dev, const char *propname, + struct iio_mount_matrix *matrix); typedef const struct iio_mount_matrix * (iio_get_mount_matrix_t)(const struct iio_dev *indio_dev, -- cgit v1.2.3 From 70b5fdbb2eaea57e3025081b1dfbabf12a4d91ee Mon Sep 17 00:00:00 2001 From: "H. Nikolaus Schaller" Date: Thu, 21 Feb 2019 18:02:51 +0100 Subject: iio: gyro: itg3200: add mount matrix support This patch allows to read a mount-matrix device tree property and report to user-space or in-kernel iio clients. Signed-off-by: H. Nikolaus Schaller Reviewed-by: Andy Shevchenko Reviewed-by: Linus Walleij Signed-off-by: Jonathan Cameron --- include/linux/iio/gyro/itg3200.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/iio/gyro/itg3200.h b/include/linux/iio/gyro/itg3200.h index 2a820850f284..0a30fddccfb3 100644 --- a/include/linux/iio/gyro/itg3200.h +++ b/include/linux/iio/gyro/itg3200.h @@ -104,6 +104,7 @@ struct itg3200 { struct i2c_client *i2c; struct iio_trigger *trig; + struct iio_mount_matrix orientation; }; enum ITG3200_SCAN_INDEX { -- cgit v1.2.3 From 5075e0720d93a84e059759c5d8c6a78613d0face Mon Sep 17 00:00:00 2001 From: Alexandru Ardelean Date: Fri, 22 Mar 2019 22:44:39 +0200 Subject: iio: imu: adis: generalize burst mode support Some variants in the ADIS16400 family support burst mode. This mechanism is implemented in the `adis16400_buffer.c` file. Some variants in ADIS16480 are also adding burst mode, which is functionally similar to ADIS16400, but with different parameters. To get there, a `adis_burst` struct is added to parametrize certain bits of the SPI communication to setup: the register that triggers burst-mode, and the extra-data-length that needs be accounted for when building the bust-length buffer. The trigger handler cannot be made generic, since it's very specific to each ADIS164XX family. A future enhancement of this `adis_burst` mode will be the possibility to enable/disable burst-mode. For the ADIS16400 family it's hard-coded to on by default. But for ADIS16480 there will be a need to disable this. When that will be implemented, both ADIS16400 & ADIS16480 will have the burst-mode enable-able/disable-able. Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron --- include/linux/iio/imu/adis.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/linux') diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h index 360da7d18a3d..469a493f7ae0 100644 --- a/include/linux/iio/imu/adis.h +++ b/include/linux/iio/imu/adis.h @@ -21,6 +21,7 @@ #define ADIS_REG_PAGE_ID 0x00 struct adis; +struct adis_burst; /** * struct adis_data - ADIS chip variant specific data @@ -57,6 +58,7 @@ struct adis { struct iio_trigger *trig; const struct adis_data *data; + struct adis_burst *burst; struct mutex txrx_lock; struct spi_message msg; @@ -232,6 +234,18 @@ int adis_single_conversion(struct iio_dev *indio_dev, #ifdef CONFIG_IIO_ADIS_LIB_BUFFER +/** + * struct adis_burst - ADIS data for burst transfers + * @en burst mode enabled + * @reg_cmd register command that triggers burst + * @extra_len extra length to account in the SPI RX buffer + */ +struct adis_burst { + bool en; + unsigned int reg_cmd; + unsigned int extra_len; +}; + int adis_setup_buffer_and_trigger(struct adis *adis, struct iio_dev *indio_dev, irqreturn_t (*trigger_handler)(int, void *)); void adis_cleanup_buffer_and_trigger(struct adis *adis, -- cgit v1.2.3 From 89c16919a0781308db6ca45e51a995e67cd90367 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 26 Mar 2019 15:47:00 +0200 Subject: iio: Make possible to include driver.h first If we put headers alphabetically sorted in the IIO driver, the compilation will abort because of unknown type to handle. Simple add a forward declaration of opaque struct iio_dev. Suggested-by: Jonathan Cameron Signed-off-by: Andy Shevchenko Signed-off-by: Jonathan Cameron --- include/linux/iio/driver.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/iio/driver.h b/include/linux/iio/driver.h index 7dfb10ee2669..f54a7bcdefe3 100644 --- a/include/linux/iio/driver.h +++ b/include/linux/iio/driver.h @@ -11,6 +11,7 @@ #ifndef _IIO_INKERN_H_ #define _IIO_INKERN_H_ +struct iio_dev; struct iio_map; /** -- cgit v1.2.3 From 5cd66239574df8b1aa4ed73e6b5ed3f51eda9057 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Tue, 26 Mar 2019 15:40:03 +0200 Subject: iio: frequency: ad9523: Fix typo in ad9523_platform_data Replace diff_{m1,m2} with div_{m1,m2} since they are dividers and not a differential settings. Signed-off-by: Lars-Peter Clausen Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron --- include/linux/iio/frequency/ad9523.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iio/frequency/ad9523.h b/include/linux/iio/frequency/ad9523.h index 12ce3ee427fd..621b93c0bcf9 100644 --- a/include/linux/iio/frequency/ad9523.h +++ b/include/linux/iio/frequency/ad9523.h @@ -129,8 +129,8 @@ enum cpole1_capacitor { * @pll2_ndiv_b_cnt: PLL2 Feedback N-divider, B Counter, range 0..63. * @pll2_freq_doubler_en: PLL2 frequency doubler enable. * @pll2_r2_div: PLL2 R2 divider, range 0..31. - * @pll2_vco_diff_m1: VCO1 divider, range 3..5. - * @pll2_vco_diff_m2: VCO2 divider, range 3..5. + * @pll2_vco_div_m1: VCO1 divider, range 3..5. + * @pll2_vco_div_m2: VCO2 divider, range 3..5. * @rpole2: PLL2 loop filter Rpole resistor value. * @rzero: PLL2 loop filter Rzero resistor value. * @cpole1: PLL2 loop filter Cpole capacitor value. @@ -176,8 +176,8 @@ struct ad9523_platform_data { unsigned char pll2_ndiv_b_cnt; bool pll2_freq_doubler_en; unsigned char pll2_r2_div; - unsigned char pll2_vco_diff_m1; /* 3..5 */ - unsigned char pll2_vco_diff_m2; /* 3..5 */ + unsigned char pll2_vco_div_m1; /* 3..5 */ + unsigned char pll2_vco_div_m2; /* 3..5 */ /* Loop Filter PLL2 */ enum rpole2_resistor rpole2; -- cgit v1.2.3 From df1d80aee963480c5c2938c64ec0ac3e4a0df2e0 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Tue, 19 Mar 2019 13:37:55 +0200 Subject: iio: ad_sigma_delta: Properly handle SPI bus locking vs CS assertion For devices from the SigmaDelta family we need to keep CS low when doing a conversion, since the device will use the MISO line as a interrupt to indicate that the conversion is complete. This is why the driver locks the SPI bus and when the SPI bus is locked keeps as long as a conversion is going on. The current implementation gets one small detail wrong though. CS is only de-asserted after the SPI bus is unlocked. This means it is possible for a different SPI device on the same bus to send a message which would be wrongfully be addressed to the SigmaDelta device as well. Make sure that the last SPI transfer that is done while holding the SPI bus lock de-asserts the CS signal. Signed-off-by: Lars-Peter Clausen Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron --- include/linux/iio/adc/ad_sigma_delta.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/iio/adc/ad_sigma_delta.h b/include/linux/iio/adc/ad_sigma_delta.h index 7e84351fa2c0..6e9fb1932dde 100644 --- a/include/linux/iio/adc/ad_sigma_delta.h +++ b/include/linux/iio/adc/ad_sigma_delta.h @@ -69,6 +69,7 @@ struct ad_sigma_delta { bool irq_dis; bool bus_locked; + bool keep_cs_asserted; uint8_t comm; -- cgit v1.2.3 From 28b05b92886871bdd8e6a9df73e3a15845fe8ef4 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Wed, 3 Apr 2019 08:28:35 +0200 Subject: net: use correct this_cpu primitive in dev_recursion_level syzbot reports: BUG: using __this_cpu_read() in preemptible code: caller is dev_recursion_level include/linux/netdevice.h:3052 [inline] __this_cpu_preempt_check+0x246/0x270 lib/smp_processor_id.c:47 dev_recursion_level include/linux/netdevice.h:3052 [inline] ip6_skb_dst_mtu include/net/ip6_route.h:245 [inline] I erronously downgraded a this_cpu_read to __this_cpu_read when moving dev_recursion_level() around. Reported-by: syzbot+51471b4aae195285a4a3@syzkaller.appspotmail.com Fixes: 97cdcf37b57e ("net: place xmit recursion in softnet data") Signed-off-by: Florian Westphal Reviewed-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index eb9f05e0863d..521eb869555e 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3049,7 +3049,7 @@ DECLARE_PER_CPU_ALIGNED(struct softnet_data, softnet_data); static inline int dev_recursion_level(void) { - return __this_cpu_read(softnet_data.xmit.recursion); + return this_cpu_read(softnet_data.xmit.recursion); } #define XMIT_RECURSION_LIMIT 10 -- cgit v1.2.3 From 9419a3191dcb27f24478d288abaab697228d28e6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 4 Apr 2019 21:04:13 -0400 Subject: acct_on(): don't mess with freeze protection What happens there is that we are replacing file->path.mnt of a file we'd just opened with a clone and we need the write count contribution to be transferred from original mount to new one. That's it. We do *NOT* want any kind of freeze protection for the duration of switchover. IOW, we should just use __mnt_{want,drop}_write() for that switchover; no need to bother with mnt_{want,drop}_write() there. Tested-by: Amir Goldstein Reported-by: syzbot+2a73a6ea9507b7112141@syzkaller.appspotmail.com Signed-off-by: Al Viro --- include/linux/mount.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mount.h b/include/linux/mount.h index 9197ddbf35fb..bf8cc4108b8f 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -87,6 +87,8 @@ extern bool mnt_may_suid(struct vfsmount *mnt); struct path; extern struct vfsmount *clone_private_mount(const struct path *path); +extern int __mnt_want_write(struct vfsmount *); +extern void __mnt_drop_write(struct vfsmount *); struct file_system_type; extern struct vfsmount *fc_mount(struct fs_context *fc); -- cgit v1.2.3 From 3aef3cae4342c1d8137a1c0782cbb66f1be3943c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 3 Mar 2019 09:14:01 -0700 Subject: block: add a req_bvec helper Return the currently active bvec segment, potentially spanning multiple pages. Signed-off-by: Christoph Hellwig Reviewed-by: Keith Busch Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni --- include/linux/blkdev.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 5c58a3b2bf00..84ce76f92d83 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -932,6 +932,17 @@ static inline unsigned int blk_rq_payload_bytes(struct request *rq) return blk_rq_bytes(rq); } +/* + * Return the first full biovec in the request. The caller needs to check that + * there are any bvecs before calling this helper. + */ +static inline struct bio_vec req_bvec(struct request *rq) +{ + if (rq->rq_flags & RQF_SPECIAL_PAYLOAD) + return rq->special_vec; + return mp_bvec_iter_bvec(rq->bio->bi_io_vec, rq->bio->bi_iter); +} + static inline unsigned int blk_queue_get_max_sectors(struct request_queue *q, int op) { -- cgit v1.2.3 From 2a876f5e25e8ec9fa5777d36e5695ee33dd63f6f Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 3 Mar 2019 08:38:29 -0700 Subject: block: add a rq_integrity_vec helper This provides a nice little shortcut to get the integrity data for drivers like NVMe that only support a single integrity segment. Signed-off-by: Christoph Hellwig Reviewed-by: Keith Busch Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni --- include/linux/blkdev.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/linux') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 84ce76f92d83..3a13fbe13e08 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1559,6 +1559,17 @@ static inline unsigned int bio_integrity_bytes(struct blk_integrity *bi, return bio_integrity_intervals(bi, sectors) * bi->tuple_size; } +/* + * Return the first bvec that contains integrity data. Only drivers that are + * limited to a single integrity segment should use this helper. + */ +static inline struct bio_vec *rq_integrity_vec(struct request *rq) +{ + if (WARN_ON_ONCE(queue_max_integrity_segments(rq->q) > 1)) + return NULL; + return rq->bio->bi_integrity->bip_vec; +} + #else /* CONFIG_BLK_DEV_INTEGRITY */ struct bio; @@ -1633,6 +1644,11 @@ static inline unsigned int bio_integrity_bytes(struct blk_integrity *bi, return 0; } +static inline struct bio_vec *rq_integrity_vec(struct request *rq) +{ + return NULL; +} + #endif /* CONFIG_BLK_DEV_INTEGRITY */ struct block_device_operations { -- cgit v1.2.3 From 9d9de535f385a8b3ba0e88ca0abf386c5704bbfc Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 3 Mar 2019 08:18:30 -0700 Subject: block: add a rq_dma_dir helper In a lot of places we want to know the DMA direction for a given struct request. Add a little helper to make it a littler easier. Signed-off-by: Christoph Hellwig Reviewed-by: Keith Busch Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni --- include/linux/blkdev.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 3a13fbe13e08..74469a4dc0a1 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -641,6 +641,9 @@ static inline bool blk_account_rq(struct request *rq) #define rq_data_dir(rq) (op_is_write(req_op(rq)) ? WRITE : READ) +#define rq_dma_dir(rq) \ + (op_is_write(req_op(rq)) ? DMA_TO_DEVICE : DMA_FROM_DEVICE) + static inline bool queue_is_mq(struct request_queue *q) { return q->mq_ops; -- cgit v1.2.3 From 3ab3a0313cb8c50391d74e40fd46a3408d8e4de9 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 3 Mar 2019 08:40:36 -0700 Subject: block: add dma_map_bvec helper Provide a nice little shortcut for mapping a single bvec. Signed-off-by: Christoph Hellwig Reviewed-by: Keith Busch Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni --- include/linux/blkdev.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 74469a4dc0a1..4b85dc066264 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -644,6 +644,10 @@ static inline bool blk_account_rq(struct request *rq) #define rq_dma_dir(rq) \ (op_is_write(req_op(rq)) ? DMA_TO_DEVICE : DMA_FROM_DEVICE) +#define dma_map_bvec(dev, bv, dir, attrs) \ + dma_map_page_attrs(dev, (bv)->bv_page, (bv)->bv_offset, (bv)->bv_len, \ + (dir), (attrs)) + static inline bool queue_is_mq(struct request_queue *q) { return q->mq_ops; -- cgit v1.2.3 From 5d3c537f907036c1f18bd325ffc356e24cde664c Mon Sep 17 00:00:00 2001 From: Aya Levin Date: Sun, 24 Mar 2019 09:21:40 +0200 Subject: net/mlx5: Handle event of power detection in the PCIE slot Handle event of power state change in the PCIE slot. When the event occurs, check if query power state and PCI power fields is supported. If so, read these fields from MPEIN (management PCIE info) register and issue a corresponding message. Signed-off-by: Aya Levin Signed-off-by: Saeed Mahameed --- include/linux/mlx5/device.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index f93a5598b942..db7dca75d726 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -361,6 +361,7 @@ enum { enum { MLX5_GENERAL_SUBTYPE_DELAY_DROP_TIMEOUT = 0x1, + MLX5_GENERAL_SUBTYPE_PCI_POWER_CHANGE_EVENT = 0x5, }; enum { -- cgit v1.2.3 From b4a9a7a38917e9f947b5e69f7e8d4138d4c82845 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 21 Mar 2019 13:27:08 -0700 Subject: bus: ti-sysc: Handle swsup idle mode quirks In preparation of dropping interconnect target module platform data in favor of devicetree based data, we must pass swsup idle quirks to the platform data functions. For now, let's only tag the UART modules with the SWSUP_SIDLE_ACT quirk. The other modules will get tagged with swsup quirks as we drop the platform data and test the changes. Signed-off-by: Tony Lindgren --- include/linux/platform_data/ti-sysc.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h index 1384e5cdd310..9256c0305968 100644 --- a/include/linux/platform_data/ti-sysc.h +++ b/include/linux/platform_data/ti-sysc.h @@ -46,6 +46,9 @@ struct sysc_regbits { s8 emufree_shift; }; +#define SYSC_QUIRK_SWSUP_MSTANDBY BIT(13) +#define SYSC_QUIRK_SWSUP_SIDLE_ACT BIT(12) +#define SYSC_QUIRK_SWSUP_SIDLE BIT(11) #define SYSC_QUIRK_EXT_OPT_CLOCK BIT(10) #define SYSC_QUIRK_LEGACY_IDLE BIT(9) #define SYSC_QUIRK_RESET_STATUS BIT(8) -- cgit v1.2.3 From 4ec73791a64bab25cabf16a6067ee478692e506d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Stefan=20M=C3=A4tje?= Date: Fri, 29 Mar 2019 18:07:35 +0100 Subject: PCI: Work around Pericom PCIe-to-PCI bridge Retrain Link erratum MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Due to an erratum in some Pericom PCIe-to-PCI bridges in reverse mode (conventional PCI on primary side, PCIe on downstream side), the Retrain Link bit needs to be cleared manually to allow the link training to complete successfully. If it is not cleared manually, the link training is continuously restarted and no devices below the PCI-to-PCIe bridge can be accessed. That means drivers for devices below the bridge will be loaded but won't work and may even crash because the driver is only reading 0xffff. See the Pericom Errata Sheet PI7C9X111SLB_errata_rev1.2_102711.pdf for details. Devices known as affected so far are: PI7C9X110, PI7C9X111SL, PI7C9X130. Add a new flag, clear_retrain_link, in struct pci_dev. Quirks for affected devices set this bit. Note that pcie_retrain_link() lives in aspm.c because that's currently the only place we use it, but this erratum is not specific to ASPM, and we may retrain links for other reasons in the future. Signed-off-by: Stefan Mätje [bhelgaas: apply regardless of CONFIG_PCIEASPM] Signed-off-by: Bjorn Helgaas Reviewed-by: Andy Shevchenko CC: stable@vger.kernel.org --- include/linux/pci.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pci.h b/include/linux/pci.h index 77448215ef5b..2c056a7a728a 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -348,6 +348,8 @@ struct pci_dev { unsigned int hotplug_user_indicators:1; /* SlotCtl indicators controlled exclusively by user sysfs */ + unsigned int clear_retrain_link:1; /* Need to clear Retrain Link + bit manually */ unsigned int d3_delay; /* D3->D0 transition time in ms */ unsigned int d3cold_delay; /* D3cold->D0 transition time in ms */ -- cgit v1.2.3 From 72deb455b5ec619ff043c30bc90025aa3de3cdda Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 5 Apr 2019 18:08:59 +0200 Subject: block: remove CONFIG_LBDAF Currently support for 64-bit sector_t and blkcnt_t is optional on 32-bit architectures. These types are required to support block device and/or file sizes larger than 2 TiB, and have generally defaulted to on for a long time. Enabling the option only increases the i386 tinyconfig size by 145 bytes, and many data structures already always use 64-bit values for their in-core and on-disk data structures anyway, so there should not be a large change in dynamic memory usage either. Dropping this option removes a somewhat weird non-default config that has cause various bugs or compiler warnings when actually used. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/genhd.h | 8 ++++---- include/linux/kernel.h | 14 ++------------ include/linux/types.h | 5 ----- 3 files changed, 6 insertions(+), 21 deletions(-) (limited to 'include/linux') diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 06c0fd594097..98076b1b5e48 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -714,7 +714,7 @@ static inline void hd_free_part(struct hd_struct *part) */ static inline sector_t part_nr_sects_read(struct hd_struct *part) { -#if BITS_PER_LONG==32 && defined(CONFIG_LBDAF) && defined(CONFIG_SMP) +#if BITS_PER_LONG==32 && defined(CONFIG_SMP) sector_t nr_sects; unsigned seq; do { @@ -722,7 +722,7 @@ static inline sector_t part_nr_sects_read(struct hd_struct *part) nr_sects = part->nr_sects; } while (read_seqcount_retry(&part->nr_sects_seq, seq)); return nr_sects; -#elif BITS_PER_LONG==32 && defined(CONFIG_LBDAF) && defined(CONFIG_PREEMPT) +#elif BITS_PER_LONG==32 && defined(CONFIG_PREEMPT) sector_t nr_sects; preempt_disable(); @@ -741,11 +741,11 @@ static inline sector_t part_nr_sects_read(struct hd_struct *part) */ static inline void part_nr_sects_write(struct hd_struct *part, sector_t size) { -#if BITS_PER_LONG==32 && defined(CONFIG_LBDAF) && defined(CONFIG_SMP) +#if BITS_PER_LONG==32 && defined(CONFIG_SMP) write_seqcount_begin(&part->nr_sects_seq); part->nr_sects = size; write_seqcount_end(&part->nr_sects_seq); -#elif BITS_PER_LONG==32 && defined(CONFIG_LBDAF) && defined(CONFIG_PREEMPT) +#elif BITS_PER_LONG==32 && defined(CONFIG_PREEMPT) preempt_disable(); part->nr_sects = size; preempt_enable(); diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 34a5036debd3..24ef5a018a5e 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -17,6 +17,7 @@ #include #include #include +#include #define STACK_MAGIC 0xdeadbeef @@ -175,18 +176,7 @@ #define _RET_IP_ (unsigned long)__builtin_return_address(0) #define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; }) -#ifdef CONFIG_LBDAF -# define sector_div(a, b) do_div(a, b) -#else -# define sector_div(n, b)( \ -{ \ - int _res; \ - _res = (n) % (b); \ - (n) /= (b); \ - _res; \ -} \ -) -#endif +#define sector_div(a, b) do_div(a, b) /** * upper_32_bits - return bits 32-63 of a number diff --git a/include/linux/types.h b/include/linux/types.h index cc0dbbe551d5..231114ae38f4 100644 --- a/include/linux/types.h +++ b/include/linux/types.h @@ -127,13 +127,8 @@ typedef s64 int64_t; * * blkcnt_t is the type of the inode's block count. */ -#ifdef CONFIG_LBDAF typedef u64 sector_t; typedef u64 blkcnt_t; -#else -typedef unsigned long sector_t; -typedef unsigned long blkcnt_t; -#endif /* * The type of an index into the pagecache. -- cgit v1.2.3 From e4b3b4435562fba5cf66dbada95568f3070f8a9f Mon Sep 17 00:00:00 2001 From: Dan Murphy Date: Thu, 21 Mar 2019 09:28:37 -0500 Subject: mfd: ti-lmu: Remove LM3532 backlight driver references Remove the LM3532 backlight driver references from the ti-lmu code as dedicated driver support is available. Signed-off-by: Dan Murphy Acked-for-MFD-by: Lee Jones Signed-off-by: Jacek Anaszewski --- include/linux/mfd/ti-lmu-register.h | 44 ------------------------------------- include/linux/mfd/ti-lmu.h | 1 - 2 files changed, 45 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/ti-lmu-register.h b/include/linux/mfd/ti-lmu-register.h index 2125c7c02818..f09510561a55 100644 --- a/include/linux/mfd/ti-lmu-register.h +++ b/include/linux/mfd/ti-lmu-register.h @@ -15,50 +15,6 @@ #include -/* LM3532 */ -#define LM3532_REG_OUTPUT_CFG 0x10 -#define LM3532_ILED1_CFG_MASK 0x03 -#define LM3532_ILED2_CFG_MASK 0x0C -#define LM3532_ILED3_CFG_MASK 0x30 -#define LM3532_ILED1_CFG_SHIFT 0 -#define LM3532_ILED2_CFG_SHIFT 2 -#define LM3532_ILED3_CFG_SHIFT 4 - -#define LM3532_REG_RAMPUP 0x12 -#define LM3532_REG_RAMPDN LM3532_REG_RAMPUP -#define LM3532_RAMPUP_MASK 0x07 -#define LM3532_RAMPUP_SHIFT 0 -#define LM3532_RAMPDN_MASK 0x38 -#define LM3532_RAMPDN_SHIFT 3 - -#define LM3532_REG_ENABLE 0x1D - -#define LM3532_REG_PWM_A_CFG 0x13 -#define LM3532_PWM_A_MASK 0x05 /* zone 0 */ -#define LM3532_PWM_ZONE_0 BIT(2) - -#define LM3532_REG_PWM_B_CFG 0x14 -#define LM3532_PWM_B_MASK 0x09 /* zone 1 */ -#define LM3532_PWM_ZONE_1 BIT(3) - -#define LM3532_REG_PWM_C_CFG 0x15 -#define LM3532_PWM_C_MASK 0x11 /* zone 2 */ -#define LM3532_PWM_ZONE_2 BIT(4) - -#define LM3532_REG_ZONE_CFG_A 0x16 -#define LM3532_REG_ZONE_CFG_B 0x18 -#define LM3532_REG_ZONE_CFG_C 0x1A -#define LM3532_ZONE_MASK (BIT(2) | BIT(3) | BIT(4)) -#define LM3532_ZONE_0 0 -#define LM3532_ZONE_1 BIT(2) -#define LM3532_ZONE_2 BIT(3) - -#define LM3532_REG_BRT_A 0x70 /* zone 0 */ -#define LM3532_REG_BRT_B 0x76 /* zone 1 */ -#define LM3532_REG_BRT_C 0x7C /* zone 2 */ - -#define LM3532_MAX_REG 0x7E - /* LM3631 */ #define LM3631_REG_DEVCTRL 0x00 #define LM3631_LCD_EN_MASK BIT(1) diff --git a/include/linux/mfd/ti-lmu.h b/include/linux/mfd/ti-lmu.h index 1ef51ed36be5..7762c1bce55d 100644 --- a/include/linux/mfd/ti-lmu.h +++ b/include/linux/mfd/ti-lmu.h @@ -22,7 +22,6 @@ #define LMU_EVENT_MONITOR_DONE 0x01 enum ti_lmu_id { - LM3532, LM3631, LM3632, LM3633, -- cgit v1.2.3 From 5861381d486601430cccf64849bd0a226154bc0d Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 21 Mar 2019 23:18:01 +0100 Subject: PM / arch: x86: Rework the MSR_IA32_ENERGY_PERF_BIAS handling The current handling of MSR_IA32_ENERGY_PERF_BIAS in the kernel is problematic, because it may cause changes made by user space to that MSR (with the help of the x86_energy_perf_policy tool, for example) to be lost every time a CPU goes offline and then back online as well as during system-wide power management transitions into sleep states and back into the working state. The first problem is that if the current EPB value for a CPU going online is 0 ('performance'), the kernel will change it to 6 ('normal') regardless of whether or not this is the first bring-up of that CPU. That also happens during system-wide resume from sleep states (including, but not limited to, hibernation). However, the EPB may have been adjusted by user space this way and the kernel should not blindly override that setting. The second problem is that if the platform firmware resets the EPB values for any CPUs during system-wide resume from a sleep state, the kernel will not restore their previous EPB values that may have been set by user space before the preceding system-wide suspend transition. Again, that behavior may at least be confusing from the user space perspective. In order to address these issues, rework the handling of MSR_IA32_ENERGY_PERF_BIAS so that the EPB value is saved on CPU offline and restored on CPU online as well as (for the boot CPU) during the syscore stages of system-wide suspend and resume transitions, respectively. However, retain the policy by which the EPB is set to 6 ('normal') on the first bring-up of each CPU if its initial value is 0, based on the observation that 0 may mean 'not initialized' just as well as 'performance' in that case. While at it, move the MSR_IA32_ENERGY_PERF_BIAS handling code into a separate file and document it in Documentation/admin-guide. Fixes: abe48b108247 (x86, intel, power: Initialize MSR_IA32_ENERGY_PERF_BIAS) Fixes: b51ef52df71c (x86/cpu: Restore MSR_IA32_ENERGY_PERF_BIAS after resume) Reported-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki Reviewed-by: Hannes Reinecke Acked-by: Borislav Petkov Acked-by: Thomas Gleixner --- include/linux/cpuhotplug.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index e78281d07b70..dbfdd0fadbef 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -147,6 +147,7 @@ enum cpuhp_state { CPUHP_AP_X86_VDSO_VMA_ONLINE, CPUHP_AP_IRQ_AFFINITY_ONLINE, CPUHP_AP_ARM_MVEBU_SYNC_CLOCKS, + CPUHP_AP_X86_INTEL_EPB_ONLINE, CPUHP_AP_PERF_ONLINE, CPUHP_AP_PERF_X86_ONLINE, CPUHP_AP_PERF_X86_UNCORE_ONLINE, -- cgit v1.2.3 From ff302db965b57c141297911ea647d36d11fedfbe Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 2 Apr 2019 10:07:45 +1100 Subject: rhashtable: allow rht_bucket_var to return NULL. Rather than returning a pointer to a static nulls, rht_bucket_var() now returns NULL if the bucket doesn't exist. This will make the next patch, which stores a bitlock in the bucket pointer, somewhat cleaner. This change involves introducing __rht_bucket_nested() which is like rht_bucket_nested(), but doesn't provide the static nulls, and changing rht_bucket_nested() to call this and possible provide a static nulls - as is still needed for the non-var case. Signed-off-by: NeilBrown Signed-off-by: David S. Miller --- include/linux/rhashtable.h | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index 86dfa417848d..0c9175aeab8a 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -265,6 +265,8 @@ void rhashtable_destroy(struct rhashtable *ht); struct rhash_head __rcu **rht_bucket_nested(const struct bucket_table *tbl, unsigned int hash); +struct rhash_head __rcu **__rht_bucket_nested(const struct bucket_table *tbl, + unsigned int hash); struct rhash_head __rcu **rht_bucket_nested_insert(struct rhashtable *ht, struct bucket_table *tbl, unsigned int hash); @@ -294,7 +296,7 @@ static inline struct rhash_head __rcu *const *rht_bucket( static inline struct rhash_head __rcu **rht_bucket_var( struct bucket_table *tbl, unsigned int hash) { - return unlikely(tbl->nest) ? rht_bucket_nested(tbl, hash) : + return unlikely(tbl->nest) ? __rht_bucket_nested(tbl, hash) : &tbl->buckets[hash]; } @@ -890,6 +892,8 @@ static inline int __rhashtable_remove_fast_one( spin_lock_bh(lock); pprev = rht_bucket_var(tbl, hash); + if (!pprev) + goto out; rht_for_each_from(he, *pprev, tbl, hash) { struct rhlist_head *list; @@ -934,6 +938,7 @@ static inline int __rhashtable_remove_fast_one( break; } +out: spin_unlock_bh(lock); if (err > 0) { @@ -1042,6 +1047,8 @@ static inline int __rhashtable_replace_fast( spin_lock_bh(lock); pprev = rht_bucket_var(tbl, hash); + if (!pprev) + goto out; rht_for_each_from(he, *pprev, tbl, hash) { if (he != obj_old) { pprev = &he->next; @@ -1053,7 +1060,7 @@ static inline int __rhashtable_replace_fast( err = 0; break; } - +out: spin_unlock_bh(lock); return err; -- cgit v1.2.3 From 8f0db018006a421956965e1149234c4e8db718ee Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 2 Apr 2019 10:07:45 +1100 Subject: rhashtable: use bit_spin_locks to protect hash bucket. This patch changes rhashtables to use a bit_spin_lock on BIT(1) of the bucket pointer to lock the hash chain for that bucket. The benefits of a bit spin_lock are: - no need to allocate a separate array of locks. - no need to have a configuration option to guide the choice of the size of this array - locking cost is often a single test-and-set in a cache line that will have to be loaded anyway. When inserting at, or removing from, the head of the chain, the unlock is free - writing the new address in the bucket head implicitly clears the lock bit. For __rhashtable_insert_fast() we ensure this always happens when adding a new key. - even when lockings costs 2 updates (lock and unlock), they are in a cacheline that needs to be read anyway. The cost of using a bit spin_lock is a little bit of code complexity, which I think is quite manageable. Bit spin_locks are sometimes inappropriate because they are not fair - if multiple CPUs repeatedly contend of the same lock, one CPU can easily be starved. This is not a credible situation with rhashtable. Multiple CPUs may want to repeatedly add or remove objects, but they will typically do so at different buckets, so they will attempt to acquire different locks. As we have more bit-locks than we previously had spinlocks (by at least a factor of two) we can expect slightly less contention to go with the slightly better cache behavior and reduced memory consumption. To enhance type checking, a new struct is introduced to represent the pointer plus lock-bit that is stored in the bucket-table. This is "struct rhash_lock_head" and is empty. A pointer to this needs to be cast to either an unsigned lock, or a "struct rhash_head *" to be useful. Variables of this type are most often called "bkt". Previously "pprev" would sometimes point to a bucket, and sometimes a ->next pointer in an rhash_head. As these are now different types, pprev is NULL when it would have pointed to the bucket. In that case, 'blk' is used, together with correct locking protocol. Signed-off-by: NeilBrown Signed-off-by: David S. Miller --- include/linux/rhashtable-types.h | 2 - include/linux/rhashtable.h | 261 +++++++++++++++++++++++++-------------- 2 files changed, 165 insertions(+), 98 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rhashtable-types.h b/include/linux/rhashtable-types.h index 763d613ce2c2..57467cbf4c5b 100644 --- a/include/linux/rhashtable-types.h +++ b/include/linux/rhashtable-types.h @@ -48,7 +48,6 @@ typedef int (*rht_obj_cmpfn_t)(struct rhashtable_compare_arg *arg, * @head_offset: Offset of rhash_head in struct to be hashed * @max_size: Maximum size while expanding * @min_size: Minimum size while shrinking - * @locks_mul: Number of bucket locks to allocate per cpu (default: 32) * @automatic_shrinking: Enable automatic shrinking of tables * @hashfn: Hash function (default: jhash2 if !(key_len % 4), or jhash) * @obj_hashfn: Function to hash object @@ -62,7 +61,6 @@ struct rhashtable_params { unsigned int max_size; u16 min_size; bool automatic_shrinking; - u8 locks_mul; rht_hashfn_t hashfn; rht_obj_hashfn_t obj_hashfn; rht_obj_cmpfn_t obj_cmpfn; diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index 0c9175aeab8a..ccbbafdf5547 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -24,12 +24,27 @@ #include #include #include +#include #include /* + * Objects in an rhashtable have an embedded struct rhash_head + * which is linked into as hash chain from the hash table - or one + * of two or more hash tables when the rhashtable is being resized. * The end of the chain is marked with a special nulls marks which has - * the least significant bit set. + * the least significant bit set but otherwise stores the address of + * the hash bucket. This allows us to be be sure we've found the end + * of the right list. + * The value stored in the hash bucket has BIT(2) used as a lock bit. + * This bit must be atomically set before any changes are made to + * the chain. To avoid dereferencing this pointer without clearing + * the bit first, we use an opaque 'struct rhash_lock_head *' for the + * pointer stored in the bucket. This struct needs to be defined so + * that rcu_derefernce() works on it, but it has no content so a + * cast is needed for it to be useful. This ensures it isn't + * used by mistake with clearing the lock bit first. */ +struct rhash_lock_head {}; /* Maximum chain length before rehash * @@ -52,8 +67,6 @@ * @nest: Number of bits of first-level nested table. * @rehash: Current bucket being rehashed * @hash_rnd: Random seed to fold into hash - * @locks_mask: Mask to apply before accessing locks[] - * @locks: Array of spinlocks protecting individual buckets * @walkers: List of active walkers * @rcu: RCU structure for freeing the table * @future_tbl: Table under construction during rehashing @@ -64,16 +77,70 @@ struct bucket_table { unsigned int size; unsigned int nest; u32 hash_rnd; - unsigned int locks_mask; - spinlock_t *locks; struct list_head walkers; struct rcu_head rcu; struct bucket_table __rcu *future_tbl; - struct rhash_head __rcu *buckets[] ____cacheline_aligned_in_smp; + struct rhash_lock_head __rcu *buckets[] ____cacheline_aligned_in_smp; }; +/* + * We lock a bucket by setting BIT(1) in the pointer - this is always + * zero in real pointers and in the nulls marker. + * bit_spin_locks do not handle contention well, but the whole point + * of the hashtable design is to achieve minimum per-bucket contention. + * A nested hash table might not have a bucket pointer. In that case + * we cannot get a lock. For remove and replace the bucket cannot be + * interesting and doesn't need locking. + * For insert we allocate the bucket if this is the last bucket_table, + * and then take the lock. + * Sometimes we unlock a bucket by writing a new pointer there. In that + * case we don't need to unlock, but we do need to reset state such as + * local_bh. For that we have rht_assign_unlock(). As rcu_assign_pointer() + * provides the same release semantics that bit_spin_unlock() provides, + * this is safe. + */ + +static inline void rht_lock(struct rhash_lock_head **bkt) +{ + local_bh_disable(); + bit_spin_lock(1, (unsigned long *)bkt); +} + +static inline void rht_unlock(struct rhash_lock_head **bkt) +{ + bit_spin_unlock(1, (unsigned long *)bkt); + local_bh_enable(); +} + +static inline void rht_assign_unlock(struct rhash_lock_head **bkt, + struct rhash_head *obj) +{ + struct rhash_head **p = (struct rhash_head **)bkt; + + rcu_assign_pointer(*p, obj); + preempt_enable(); + __release(bitlock); + local_bh_enable(); +} + +/* + * If 'p' is a bucket head and might be locked: + * rht_ptr() returns the address without the lock bit. + * rht_ptr_locked() returns the address WITH the lock bit. + */ +static inline struct rhash_head __rcu *rht_ptr(const struct rhash_lock_head *p) +{ + return (void *)(((unsigned long)p) & ~BIT(1)); +} + +static inline struct rhash_lock_head __rcu *rht_ptr_locked(const + struct rhash_head *p) +{ + return (void *)(((unsigned long)p) | BIT(1)); +} + /* * NULLS_MARKER() expects a hash value with the low * bits mostly likely to be significant, and it discards @@ -206,25 +273,6 @@ static inline bool rht_grow_above_max(const struct rhashtable *ht, return atomic_read(&ht->nelems) >= ht->max_elems; } -/* The bucket lock is selected based on the hash and protects mutations - * on a group of hash buckets. - * - * A maximum of tbl->size/2 bucket locks is allocated. This ensures that - * a single lock always covers both buckets which may both contains - * entries which link to the same bucket of the old table during resizing. - * This allows to simplify the locking as locking the bucket in both - * tables during resize always guarantee protection. - * - * IMPORTANT: When holding the bucket lock of both the old and new table - * during expansions and shrinking, the old bucket lock must always be - * acquired first. - */ -static inline spinlock_t *rht_bucket_lock(const struct bucket_table *tbl, - unsigned int hash) -{ - return &tbl->locks[hash & tbl->locks_mask]; -} - #ifdef CONFIG_PROVE_LOCKING int lockdep_rht_mutex_is_held(struct rhashtable *ht); int lockdep_rht_bucket_is_held(const struct bucket_table *tbl, u32 hash); @@ -263,13 +311,13 @@ void rhashtable_free_and_destroy(struct rhashtable *ht, void *arg); void rhashtable_destroy(struct rhashtable *ht); -struct rhash_head __rcu **rht_bucket_nested(const struct bucket_table *tbl, - unsigned int hash); -struct rhash_head __rcu **__rht_bucket_nested(const struct bucket_table *tbl, - unsigned int hash); -struct rhash_head __rcu **rht_bucket_nested_insert(struct rhashtable *ht, - struct bucket_table *tbl, +struct rhash_lock_head __rcu **rht_bucket_nested(const struct bucket_table *tbl, + unsigned int hash); +struct rhash_lock_head __rcu **__rht_bucket_nested(const struct bucket_table *tbl, unsigned int hash); +struct rhash_lock_head __rcu **rht_bucket_nested_insert(struct rhashtable *ht, + struct bucket_table *tbl, + unsigned int hash); #define rht_dereference(p, ht) \ rcu_dereference_protected(p, lockdep_rht_mutex_is_held(ht)) @@ -286,21 +334,21 @@ struct rhash_head __rcu **rht_bucket_nested_insert(struct rhashtable *ht, #define rht_entry(tpos, pos, member) \ ({ tpos = container_of(pos, typeof(*tpos), member); 1; }) -static inline struct rhash_head __rcu *const *rht_bucket( +static inline struct rhash_lock_head __rcu *const *rht_bucket( const struct bucket_table *tbl, unsigned int hash) { return unlikely(tbl->nest) ? rht_bucket_nested(tbl, hash) : &tbl->buckets[hash]; } -static inline struct rhash_head __rcu **rht_bucket_var( +static inline struct rhash_lock_head __rcu **rht_bucket_var( struct bucket_table *tbl, unsigned int hash) { return unlikely(tbl->nest) ? __rht_bucket_nested(tbl, hash) : &tbl->buckets[hash]; } -static inline struct rhash_head __rcu **rht_bucket_insert( +static inline struct rhash_lock_head __rcu **rht_bucket_insert( struct rhashtable *ht, struct bucket_table *tbl, unsigned int hash) { return unlikely(tbl->nest) ? rht_bucket_nested_insert(ht, tbl, hash) : @@ -326,7 +374,7 @@ static inline struct rhash_head __rcu **rht_bucket_insert( * @hash: the hash value / bucket index */ #define rht_for_each(pos, tbl, hash) \ - rht_for_each_from(pos, *rht_bucket(tbl, hash), tbl, hash) + rht_for_each_from(pos, rht_ptr(*rht_bucket(tbl, hash)), tbl, hash) /** * rht_for_each_entry_from - iterate over hash chain from given head @@ -351,7 +399,7 @@ static inline struct rhash_head __rcu **rht_bucket_insert( * @member: name of the &struct rhash_head within the hashable struct. */ #define rht_for_each_entry(tpos, pos, tbl, hash, member) \ - rht_for_each_entry_from(tpos, pos, *rht_bucket(tbl, hash), \ + rht_for_each_entry_from(tpos, pos, rht_ptr(*rht_bucket(tbl, hash)), \ tbl, hash, member) /** @@ -367,7 +415,8 @@ static inline struct rhash_head __rcu **rht_bucket_insert( * remove the loop cursor from the list. */ #define rht_for_each_entry_safe(tpos, pos, next, tbl, hash, member) \ - for (pos = rht_dereference_bucket(*rht_bucket(tbl, hash), tbl, hash), \ + for (pos = rht_dereference_bucket(rht_ptr(*rht_bucket(tbl, hash)), \ + tbl, hash), \ next = !rht_is_a_nulls(pos) ? \ rht_dereference_bucket(pos->next, tbl, hash) : NULL; \ (!rht_is_a_nulls(pos)) && rht_entry(tpos, pos, member); \ @@ -402,8 +451,12 @@ static inline struct rhash_head __rcu **rht_bucket_insert( * the _rcu mutation primitives such as rhashtable_insert() as long as the * traversal is guarded by rcu_read_lock(). */ -#define rht_for_each_rcu(pos, tbl, hash) \ - rht_for_each_rcu_from(pos, *rht_bucket(tbl, hash), tbl, hash) +#define rht_for_each_rcu(pos, tbl, hash) \ + for (({barrier(); }), \ + pos = rht_ptr(rht_dereference_bucket_rcu( \ + *rht_bucket(tbl, hash), tbl, hash)); \ + !rht_is_a_nulls(pos); \ + pos = rcu_dereference_raw(pos->next)) /** * rht_for_each_entry_rcu_from - iterated over rcu hash chain from given head @@ -437,7 +490,8 @@ static inline struct rhash_head __rcu **rht_bucket_insert( * traversal is guarded by rcu_read_lock(). */ #define rht_for_each_entry_rcu(tpos, pos, tbl, hash, member) \ - rht_for_each_entry_rcu_from(tpos, pos, *rht_bucket(tbl, hash), \ + rht_for_each_entry_rcu_from(tpos, pos, \ + rht_ptr(*rht_bucket(tbl, hash)), \ tbl, hash, member) /** @@ -483,7 +537,7 @@ static inline struct rhash_head *__rhashtable_lookup( .ht = ht, .key = key, }; - struct rhash_head __rcu * const *head; + struct rhash_lock_head __rcu * const *bkt; struct bucket_table *tbl; struct rhash_head *he; unsigned int hash; @@ -491,9 +545,10 @@ static inline struct rhash_head *__rhashtable_lookup( tbl = rht_dereference_rcu(ht->tbl, ht); restart: hash = rht_key_hashfn(ht, tbl, key, params); - head = rht_bucket(tbl, hash); + bkt = rht_bucket(tbl, hash); do { - rht_for_each_rcu_from(he, *head, tbl, hash) { + he = rht_ptr(rht_dereference_bucket_rcu(*bkt, tbl, hash)); + rht_for_each_rcu_from(he, he, tbl, hash) { if (params.obj_cmpfn ? params.obj_cmpfn(&arg, rht_obj(ht, he)) : rhashtable_compare(&arg, rht_obj(ht, he))) @@ -503,7 +558,7 @@ restart: /* An object might have been moved to a different hash chain, * while we walk along it - better check and retry. */ - } while (he != RHT_NULLS_MARKER(head)); + } while (he != RHT_NULLS_MARKER(bkt)); /* Ensure we see any new tables. */ smp_rmb(); @@ -599,10 +654,10 @@ static inline void *__rhashtable_insert_fast( .ht = ht, .key = key, }; + struct rhash_lock_head __rcu **bkt; struct rhash_head __rcu **pprev; struct bucket_table *tbl; struct rhash_head *head; - spinlock_t *lock; unsigned int hash; int elasticity; void *data; @@ -611,23 +666,22 @@ static inline void *__rhashtable_insert_fast( tbl = rht_dereference_rcu(ht->tbl, ht); hash = rht_head_hashfn(ht, tbl, obj, params); - lock = rht_bucket_lock(tbl, hash); - spin_lock_bh(lock); + elasticity = RHT_ELASTICITY; + bkt = rht_bucket_insert(ht, tbl, hash); + data = ERR_PTR(-ENOMEM); + if (!bkt) + goto out; + pprev = NULL; + rht_lock(bkt); if (unlikely(rcu_access_pointer(tbl->future_tbl))) { slow_path: - spin_unlock_bh(lock); + rht_unlock(bkt); rcu_read_unlock(); return rhashtable_insert_slow(ht, key, obj); } - elasticity = RHT_ELASTICITY; - pprev = rht_bucket_insert(ht, tbl, hash); - data = ERR_PTR(-ENOMEM); - if (!pprev) - goto out; - - rht_for_each_from(head, *pprev, tbl, hash) { + rht_for_each_from(head, rht_ptr(*bkt), tbl, hash) { struct rhlist_head *plist; struct rhlist_head *list; @@ -643,7 +697,7 @@ slow_path: data = rht_obj(ht, head); if (!rhlist) - goto out; + goto out_unlock; list = container_of(obj, struct rhlist_head, rhead); @@ -652,9 +706,13 @@ slow_path: RCU_INIT_POINTER(list->next, plist); head = rht_dereference_bucket(head->next, tbl, hash); RCU_INIT_POINTER(list->rhead.next, head); - rcu_assign_pointer(*pprev, obj); - - goto good; + if (pprev) { + rcu_assign_pointer(*pprev, obj); + rht_unlock(bkt); + } else + rht_assign_unlock(bkt, obj); + data = NULL; + goto out; } if (elasticity <= 0) @@ -662,12 +720,13 @@ slow_path: data = ERR_PTR(-E2BIG); if (unlikely(rht_grow_above_max(ht, tbl))) - goto out; + goto out_unlock; if (unlikely(rht_grow_above_100(ht, tbl))) goto slow_path; - head = rht_dereference_bucket(*pprev, tbl, hash); + /* Inserting at head of list makes unlocking free. */ + head = rht_ptr(rht_dereference_bucket(*bkt, tbl, hash)); RCU_INIT_POINTER(obj->next, head); if (rhlist) { @@ -677,20 +736,21 @@ slow_path: RCU_INIT_POINTER(list->next, NULL); } - rcu_assign_pointer(*pprev, obj); - atomic_inc(&ht->nelems); + rht_assign_unlock(bkt, obj); + if (rht_grow_above_75(ht, tbl)) schedule_work(&ht->run_work); -good: data = NULL; - out: - spin_unlock_bh(lock); rcu_read_unlock(); return data; + +out_unlock: + rht_unlock(bkt); + goto out; } /** @@ -699,9 +759,9 @@ out: * @obj: pointer to hash head inside object * @params: hash table parameters * - * Will take a per bucket spinlock to protect against mutual mutations + * Will take the per bucket bitlock to protect against mutual mutations * on the same bucket. Multiple insertions may occur in parallel unless - * they map to the same bucket lock. + * they map to the same bucket. * * It is safe to call this function from atomic context. * @@ -728,9 +788,9 @@ static inline int rhashtable_insert_fast( * @list: pointer to hash list head inside object * @params: hash table parameters * - * Will take a per bucket spinlock to protect against mutual mutations + * Will take the per bucket bitlock to protect against mutual mutations * on the same bucket. Multiple insertions may occur in parallel unless - * they map to the same bucket lock. + * they map to the same bucket. * * It is safe to call this function from atomic context. * @@ -751,9 +811,9 @@ static inline int rhltable_insert_key( * @list: pointer to hash list head inside object * @params: hash table parameters * - * Will take a per bucket spinlock to protect against mutual mutations + * Will take the per bucket bitlock to protect against mutual mutations * on the same bucket. Multiple insertions may occur in parallel unless - * they map to the same bucket lock. + * they map to the same bucket. * * It is safe to call this function from atomic context. * @@ -880,21 +940,20 @@ static inline int __rhashtable_remove_fast_one( struct rhash_head *obj, const struct rhashtable_params params, bool rhlist) { + struct rhash_lock_head __rcu **bkt; struct rhash_head __rcu **pprev; struct rhash_head *he; - spinlock_t * lock; unsigned int hash; int err = -ENOENT; hash = rht_head_hashfn(ht, tbl, obj, params); - lock = rht_bucket_lock(tbl, hash); + bkt = rht_bucket_var(tbl, hash); + if (!bkt) + return -ENOENT; + pprev = NULL; + rht_lock(bkt); - spin_lock_bh(lock); - - pprev = rht_bucket_var(tbl, hash); - if (!pprev) - goto out; - rht_for_each_from(he, *pprev, tbl, hash) { + rht_for_each_from(he, rht_ptr(*bkt), tbl, hash) { struct rhlist_head *list; list = container_of(he, struct rhlist_head, rhead); @@ -934,13 +993,17 @@ static inline int __rhashtable_remove_fast_one( } } - rcu_assign_pointer(*pprev, obj); - break; + if (pprev) { + rcu_assign_pointer(*pprev, obj); + rht_unlock(bkt); + } else { + rht_assign_unlock(bkt, obj); + } + goto unlocked; } -out: - spin_unlock_bh(lock); - + rht_unlock(bkt); +unlocked: if (err > 0) { atomic_dec(&ht->nelems); if (unlikely(ht->p.automatic_shrinking && @@ -1029,9 +1092,9 @@ static inline int __rhashtable_replace_fast( struct rhash_head *obj_old, struct rhash_head *obj_new, const struct rhashtable_params params) { + struct rhash_lock_head __rcu **bkt; struct rhash_head __rcu **pprev; struct rhash_head *he; - spinlock_t *lock; unsigned int hash; int err = -ENOENT; @@ -1042,27 +1105,33 @@ static inline int __rhashtable_replace_fast( if (hash != rht_head_hashfn(ht, tbl, obj_new, params)) return -EINVAL; - lock = rht_bucket_lock(tbl, hash); + bkt = rht_bucket_var(tbl, hash); + if (!bkt) + return -ENOENT; - spin_lock_bh(lock); + pprev = NULL; + rht_lock(bkt); - pprev = rht_bucket_var(tbl, hash); - if (!pprev) - goto out; - rht_for_each_from(he, *pprev, tbl, hash) { + rht_for_each_from(he, rht_ptr(*bkt), tbl, hash) { if (he != obj_old) { pprev = &he->next; continue; } rcu_assign_pointer(obj_new->next, obj_old->next); - rcu_assign_pointer(*pprev, obj_new); + if (pprev) { + rcu_assign_pointer(*pprev, obj_new); + rht_unlock(bkt); + } else { + rht_assign_unlock(bkt, obj_new); + } err = 0; - break; + goto unlocked; } -out: - spin_unlock_bh(lock); + rht_unlock(bkt); + +unlocked: return err; } -- cgit v1.2.3 From 149212f07856b25a9d342bfd6d736519b2ef66dc Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 2 Apr 2019 10:07:45 +1100 Subject: rhashtable: add lockdep tracking to bucket bit-spin-locks. Native bit_spin_locks are not tracked by lockdep. The bit_spin_locks used for rhashtable buckets are local to the rhashtable implementation, so there is little opportunity for the sort of misuse that lockdep might detect. However locks are held while a hash function or compare function is called, and if one of these took a lock, a misbehaviour is possible. As it is quite easy to add lockdep support this unlikely possibility seems to be enough justification. So create a lockdep class for bucket bit_spin_lock and attach through a lockdep_map in each bucket_table. Without the 'nested' annotation in rhashtable_rehash_one(), lockdep correctly reports a possible problem as this lock is taken while another bucket lock (in another table) is held. This confirms that the added support works. With the correct nested annotation in place, lockdep reports no problems. Signed-off-by: NeilBrown Signed-off-by: David S. Miller --- include/linux/rhashtable.h | 51 ++++++++++++++++++++++++++++++---------------- 1 file changed, 34 insertions(+), 17 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index ccbbafdf5547..460c0eaf6b96 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -82,6 +82,8 @@ struct bucket_table { struct bucket_table __rcu *future_tbl; + struct lockdep_map dep_map; + struct rhash_lock_head __rcu *buckets[] ____cacheline_aligned_in_smp; }; @@ -102,23 +104,38 @@ struct bucket_table { * this is safe. */ -static inline void rht_lock(struct rhash_lock_head **bkt) +static inline void rht_lock(struct bucket_table *tbl, + struct rhash_lock_head **bkt) { local_bh_disable(); bit_spin_lock(1, (unsigned long *)bkt); + lock_map_acquire(&tbl->dep_map); +} + +static inline void rht_lock_nested(struct bucket_table *tbl, + struct rhash_lock_head **bucket, + unsigned int subclass) +{ + local_bh_disable(); + bit_spin_lock(1, (unsigned long *)bucket); + lock_acquire_exclusive(&tbl->dep_map, subclass, 0, NULL, _THIS_IP_); } -static inline void rht_unlock(struct rhash_lock_head **bkt) +static inline void rht_unlock(struct bucket_table *tbl, + struct rhash_lock_head **bkt) { + lock_map_release(&tbl->dep_map); bit_spin_unlock(1, (unsigned long *)bkt); local_bh_enable(); } -static inline void rht_assign_unlock(struct rhash_lock_head **bkt, +static inline void rht_assign_unlock(struct bucket_table *tbl, + struct rhash_lock_head **bkt, struct rhash_head *obj) { struct rhash_head **p = (struct rhash_head **)bkt; + lock_map_release(&tbl->dep_map); rcu_assign_pointer(*p, obj); preempt_enable(); __release(bitlock); @@ -672,11 +689,11 @@ static inline void *__rhashtable_insert_fast( if (!bkt) goto out; pprev = NULL; - rht_lock(bkt); + rht_lock(tbl, bkt); if (unlikely(rcu_access_pointer(tbl->future_tbl))) { slow_path: - rht_unlock(bkt); + rht_unlock(tbl, bkt); rcu_read_unlock(); return rhashtable_insert_slow(ht, key, obj); } @@ -708,9 +725,9 @@ slow_path: RCU_INIT_POINTER(list->rhead.next, head); if (pprev) { rcu_assign_pointer(*pprev, obj); - rht_unlock(bkt); + rht_unlock(tbl, bkt); } else - rht_assign_unlock(bkt, obj); + rht_assign_unlock(tbl, bkt, obj); data = NULL; goto out; } @@ -737,7 +754,7 @@ slow_path: } atomic_inc(&ht->nelems); - rht_assign_unlock(bkt, obj); + rht_assign_unlock(tbl, bkt, obj); if (rht_grow_above_75(ht, tbl)) schedule_work(&ht->run_work); @@ -749,7 +766,7 @@ out: return data; out_unlock: - rht_unlock(bkt); + rht_unlock(tbl, bkt); goto out; } @@ -951,7 +968,7 @@ static inline int __rhashtable_remove_fast_one( if (!bkt) return -ENOENT; pprev = NULL; - rht_lock(bkt); + rht_lock(tbl, bkt); rht_for_each_from(he, rht_ptr(*bkt), tbl, hash) { struct rhlist_head *list; @@ -995,14 +1012,14 @@ static inline int __rhashtable_remove_fast_one( if (pprev) { rcu_assign_pointer(*pprev, obj); - rht_unlock(bkt); + rht_unlock(tbl, bkt); } else { - rht_assign_unlock(bkt, obj); + rht_assign_unlock(tbl, bkt, obj); } goto unlocked; } - rht_unlock(bkt); + rht_unlock(tbl, bkt); unlocked: if (err > 0) { atomic_dec(&ht->nelems); @@ -1110,7 +1127,7 @@ static inline int __rhashtable_replace_fast( return -ENOENT; pprev = NULL; - rht_lock(bkt); + rht_lock(tbl, bkt); rht_for_each_from(he, rht_ptr(*bkt), tbl, hash) { if (he != obj_old) { @@ -1121,15 +1138,15 @@ static inline int __rhashtable_replace_fast( rcu_assign_pointer(obj_new->next, obj_old->next); if (pprev) { rcu_assign_pointer(*pprev, obj_new); - rht_unlock(bkt); + rht_unlock(tbl, bkt); } else { - rht_assign_unlock(bkt, obj_new); + rht_assign_unlock(tbl, bkt, obj_new); } err = 0; goto unlocked; } - rht_unlock(bkt); + rht_unlock(tbl, bkt); unlocked: return err; -- cgit v1.2.3 From d6112ea0cb344d6f5ed519991e24f69ba4b43d0e Mon Sep 17 00:00:00 2001 From: "Singh, Brijesh" Date: Thu, 28 Mar 2019 21:58:52 +0000 Subject: crypto: ccp - introduce SEV_GET_ID2 command The current definition and implementation of the SEV_GET_ID command does not provide the length of the unique ID returned by the firmware. As per the firmware specification, the firmware may return an ID length that is not restricted to 64 bytes as assumed by the SEV_GET_ID command. Introduce the SEV_GET_ID2 command to overcome with the SEV_GET_ID limitations. Deprecate the SEV_GET_ID in the favor of SEV_GET_ID2. At the same time update SEV API web link. Cc: Janakarajan Natarajan Cc: Herbert Xu Cc: Gary Hook Cc: Tom Lendacky Cc: Nathaniel McCallum Signed-off-by: Brijesh Singh Signed-off-by: Herbert Xu --- include/linux/psp-sev.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/psp-sev.h b/include/linux/psp-sev.h index 827c601841c4..6f89fc8d4b8e 100644 --- a/include/linux/psp-sev.h +++ b/include/linux/psp-sev.h @@ -5,8 +5,7 @@ * * Author: Brijesh Singh * - * SEV spec 0.14 is available at: - * http://support.amd.com/TechDocs/55766_SEV-KM API_Specification.pdf + * SEV API spec is available at https://developer.amd.com/sev * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as -- cgit v1.2.3 From 45beec3519983cb11768cd3ee350f44975bf4cea Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Tue, 2 Apr 2019 21:01:32 -0700 Subject: spi: bitbang: Introduce spi_bitbang_init() Move all of the code doing struct spi_bitbang initialization, so that it can be paired with devm_spi_register_master() in order to avoid having to call spi_bitbang_stop() explicitly. Signed-off-by: Andrey Smirnov Cc: Mark Brown Cc: Chris Healy Cc: linux-spi@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Mark Brown --- include/linux/spi/spi_bitbang.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h index b7e021b274dc..4444c2a992cb 100644 --- a/include/linux/spi/spi_bitbang.h +++ b/include/linux/spi/spi_bitbang.h @@ -44,6 +44,7 @@ extern int spi_bitbang_setup_transfer(struct spi_device *spi, /* start or stop queue processing */ extern int spi_bitbang_start(struct spi_bitbang *spi); +extern int spi_bitbang_init(struct spi_bitbang *spi); extern void spi_bitbang_stop(struct spi_bitbang *spi); #endif /* __SPI_BITBANG_H */ -- cgit v1.2.3 From f1ca9992ced71029735784de138f53446363087f Mon Sep 17 00:00:00 2001 From: Sowjanya Komatineni Date: Thu, 4 Apr 2019 17:14:16 -0700 Subject: spi: add a method for configuring CS timing This patch creates set_cs_timing SPI master optional method for SPI masters to implement configuring CS timing if applicable. This patch also creates spi_cs_timing accessory for SPI clients to use for requesting SPI master controllers to configure device requested CS setup time, hold time and inactive delay. Signed-off-by: Sowjanya Komatineni Signed-off-by: Mark Brown --- include/linux/spi/spi.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'include/linux') diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index a0975cf76cf6..589f9dc9ac2b 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -330,6 +330,9 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * must fail if an unrecognized or unsupported mode is requested. * It's always safe to call this unless transfers are pending on * the device whose settings are being modified. + * @set_cs_timing: optional hook for SPI devices to request SPI master + * controller for configuring specific CS setup time, hold time and inactive + * delay interms of clock counts * @transfer: adds a message to the controller's transfer queue. * @cleanup: frees controller-specific state * @can_dma: determine whether this controller supports DMA @@ -363,6 +366,7 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * @unprepare_transfer_hardware: there are currently no more messages on the * queue so the subsystem notifies the driver that it may relax the * hardware by issuing this call + * * @set_cs: set the logic level of the chip select line. May be called * from interrupt context. * @prepare_message: set up the controller to transfer a single message, @@ -488,6 +492,17 @@ struct spi_controller { */ int (*setup)(struct spi_device *spi); + /* + * set_cs_timing() method is for SPI controllers that supports + * configuring CS timing. + * + * This hook allows SPI client drivers to request SPI controllers + * to configure specific CS timing through spi_set_cs_timing() after + * spi_setup(). + */ + void (*set_cs_timing)(struct spi_device *spi, u8 setup_clk_cycles, + u8 hold_clk_cycles, u8 inactive_clk_cycles); + /* bidirectional bulk transfers * * + The transfer() method may not sleep; its main role is -- cgit v1.2.3 From 377e517b5fa53590418a7b4c2206082d92434fa3 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Sun, 4 Nov 2018 14:43:37 +0100 Subject: mtd: nand: Add max_bad_eraseblocks_per_lun info to memorg NAND datasheets usually give the maximum number of bad blocks per LUN and this number can be used to help upper layers decide how much blocks they should reserve for bad block handling. Add a max_bad_eraseblocks_per_lun to the nand_memory_organization struct and update the NAND_MEMORG() macro (and its users) accordingly. We also provide a default mtd->_max_bad_blocks() implementation. Signed-off-by: Boris Brezillon Signed-off-by: Miquel Raynal Reviewed-by: Frieder Schrempf --- include/linux/mtd/nand.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 7f53ece2c039..d32bb623d532 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -19,6 +19,7 @@ * @oobsize: OOB area size * @pages_per_eraseblock: number of pages per eraseblock * @eraseblocks_per_lun: number of eraseblocks per LUN (Logical Unit Number) + * @max_bad_eraseblocks_per_lun: maximum number of eraseblocks per LUN * @planes_per_lun: number of planes per LUN * @luns_per_target: number of LUN per target (target is a synonym for die) * @ntargets: total number of targets exposed by the NAND device @@ -29,18 +30,20 @@ struct nand_memory_organization { unsigned int oobsize; unsigned int pages_per_eraseblock; unsigned int eraseblocks_per_lun; + unsigned int max_bad_eraseblocks_per_lun; unsigned int planes_per_lun; unsigned int luns_per_target; unsigned int ntargets; }; -#define NAND_MEMORG(bpc, ps, os, ppe, epl, ppl, lpt, nt) \ +#define NAND_MEMORG(bpc, ps, os, ppe, epl, mbb, ppl, lpt, nt) \ { \ .bits_per_cell = (bpc), \ .pagesize = (ps), \ .oobsize = (os), \ .pages_per_eraseblock = (ppe), \ .eraseblocks_per_lun = (epl), \ + .max_bad_eraseblocks_per_lun = (mbb), \ .planes_per_lun = (ppl), \ .luns_per_target = (lpt), \ .ntargets = (nt), \ @@ -729,5 +732,6 @@ static inline bool nanddev_bbt_is_initialized(struct nand_device *nand) /* MTD -> NAND helper functions. */ int nanddev_mtd_erase(struct mtd_info *mtd, struct erase_info *einfo); +int nanddev_mtd_max_bad_blocks(struct mtd_info *mtd, loff_t offs, size_t len); #endif /* __LINUX_MTD_NAND_H */ -- cgit v1.2.3 From 7c4ecca103b3d70c50adc693c9f5d39d292e13e0 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Mon, 29 Oct 2018 10:29:48 +0100 Subject: mtd: nand: Add a helper returning the number of eraseblocks per target Some drivers in the raw NAND framework seems to need this helper, so let's just add it instead of open-coding the logic. Signed-off-by: Boris Brezillon Signed-off-by: Miquel Raynal Reviewed-by: Frieder Schrempf --- include/linux/mtd/nand.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index d32bb623d532..12d75402472a 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -294,6 +294,18 @@ nanddev_eraseblocks_per_lun(const struct nand_device *nand) return nand->memorg.eraseblocks_per_lun; } +/** + * nanddev_eraseblocks_per_target() - Get the number of eraseblocks per target + * @nand: NAND device + * + * Return: the number of eraseblocks per target. + */ +static inline unsigned int +nanddev_eraseblocks_per_target(const struct nand_device *nand) +{ + return nand->memorg.eraseblocks_per_lun * nand->memorg.luns_per_target; +} + /** * nanddev_target_size() - Get the total size provided by a single target/die * @nand: NAND device -- cgit v1.2.3 From 46b01d7efda29356d4dff88825e5ef51dd9f6bae Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Mon, 29 Oct 2018 17:18:39 +0100 Subject: mtd: nand: Add a helper to retrieve the number of pages per target Will be used by the raw NAND framework. Signed-off-by: Boris Brezillon Signed-off-by: Miquel Raynal Reviewed-by: Frieder Schrempf --- include/linux/mtd/nand.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 12d75402472a..cebc38b6d6f5 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -271,6 +271,20 @@ nanddev_pages_per_eraseblock(const struct nand_device *nand) return nand->memorg.pages_per_eraseblock; } +/** + * nanddev_pages_per_target() - Get the number of pages per target + * @nand: NAND device + * + * Return: the number of pages per target. + */ +static inline unsigned int +nanddev_pages_per_target(const struct nand_device *nand) +{ + return nand->memorg.pages_per_eraseblock * + nand->memorg.eraseblocks_per_lun * + nand->memorg.luns_per_target; +} + /** * nanddev_per_page_oobsize() - Get NAND erase block size * @nand: NAND device -- cgit v1.2.3 From 080d66e94d69a5b1d197ac411db6c27700868af8 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Thu, 25 Oct 2018 15:05:39 +0200 Subject: mtd: rawnand: Use nand_to_mtd() in nand_{set,get}_flash_node() Use the nand_to_mtd() helper to access chip->mtd as done everywhere else. Signed-off-by: Boris Brezillon Signed-off-by: Miquel Raynal Reviewed-by: Frieder Schrempf --- include/linux/mtd/rawnand.h | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index b7445a44a814..d5c7741c0901 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1105,17 +1105,6 @@ struct nand_chip { extern const struct mtd_ooblayout_ops nand_ooblayout_sp_ops; extern const struct mtd_ooblayout_ops nand_ooblayout_lp_ops; -static inline void nand_set_flash_node(struct nand_chip *chip, - struct device_node *np) -{ - mtd_set_of_node(&chip->mtd, np); -} - -static inline struct device_node *nand_get_flash_node(struct nand_chip *chip) -{ - return mtd_get_of_node(&chip->mtd); -} - static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd) { return container_of(mtd, struct nand_chip, mtd); @@ -1147,6 +1136,17 @@ static inline void *nand_get_manufacturer_data(struct nand_chip *chip) return chip->manufacturer.priv; } +static inline void nand_set_flash_node(struct nand_chip *chip, + struct device_node *np) +{ + mtd_set_of_node(nand_to_mtd(chip), np); +} + +static inline struct device_node *nand_get_flash_node(struct nand_chip *chip) +{ + return mtd_get_of_node(nand_to_mtd(chip)); +} + /* * A helper for defining older NAND chips where the second ID byte fully * defined the chip, including the geometry (chip size, eraseblock size, page -- cgit v1.2.3 From 3020e30af6f81beedfeb4cf4eecc693bba55a6c2 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Thu, 25 Oct 2018 15:21:08 +0200 Subject: mtd: rawnand: Prepare things to reuse the generic NAND layer The generic NAND layer provides abstraction of NAND devices no matter the bus that is used to communicate with the chip. Basing the raw NAND core on this generic layer should avoid duplication of common operations, like iterating over all pages/blocks for MTD IO/erase operations. In order to re-use this layer, we must first inherit from nand_device and then initialize the nand_device struct appropriately. This patch is taking care of the former. Signed-off-by: Boris Brezillon Signed-off-by: Miquel Raynal Reviewed-by: Frieder Schrempf --- include/linux/mtd/rawnand.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index d5c7741c0901..58887cb2c7ea 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -860,6 +861,7 @@ struct nand_operation { int nand_op_parser_exec_op(struct nand_chip *chip, const struct nand_op_parser *parser, const struct nand_operation *op, bool check_only); + /** * struct nand_controller_ops - Controller operations * @@ -962,7 +964,7 @@ struct nand_legacy { /** * struct nand_chip - NAND Private Flash Chip Data - * @mtd: MTD device registered to the MTD framework + * @base: Inherit from the generic NAND device * @legacy: All legacy fields/hooks. If you develop a new driver, * don't even try to use any of these fields/hooks, and if * you're modifying an existing driver that is using those @@ -1041,7 +1043,7 @@ struct nand_legacy { */ struct nand_chip { - struct mtd_info mtd; + struct nand_device base; struct nand_legacy legacy; @@ -1107,12 +1109,12 @@ extern const struct mtd_ooblayout_ops nand_ooblayout_lp_ops; static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd) { - return container_of(mtd, struct nand_chip, mtd); + return container_of(mtd, struct nand_chip, base.mtd); } static inline struct mtd_info *nand_to_mtd(struct nand_chip *chip) { - return &chip->mtd; + return &chip->base.mtd; } static inline void *nand_get_controller_data(struct nand_chip *chip) -- cgit v1.2.3 From eeab717483e5fb529c8001d36fbda14011905e5f Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Sun, 28 Oct 2018 15:27:55 +0100 Subject: mtd: rawnand: Provide a helper to get chip->data_buf We plan to move cache related fields to a pagecache struct in nand_chip but some drivers access ->pagebuf directly to invalidate the cache before they start using ->data_buf. Let's provide an helper that returns a pointer to ->data_buf after invalidating the cache. Signed-off-by: Boris Brezillon Signed-off-by: Miquel Raynal Reviewed-by: Frieder Schrempf --- include/linux/mtd/rawnand.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 58887cb2c7ea..253f9942a919 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1350,4 +1350,25 @@ int nand_gpio_waitrdy(struct nand_chip *chip, struct gpio_desc *gpiod, void nand_select_target(struct nand_chip *chip, unsigned int cs); void nand_deselect_target(struct nand_chip *chip); +/** + * nand_get_data_buf() - Get the internal page buffer + * @chip: NAND chip object + * + * Returns the pre-allocated page buffer after invalidating the cache. This + * function should be used by drivers that do not want to allocate their own + * bounce buffer and still need such a buffer for specific operations (most + * commonly when reading OOB data only). + * + * Be careful to never call this function in the write/write_oob path, because + * the core may have placed the data to be written out in this buffer. + * + * Return: pointer to the page cache buffer + */ +static inline void *nand_get_data_buf(struct nand_chip *chip) +{ + chip->pagebuf = -1; + + return chip->data_buf; +} + #endif /* __LINUX_MTD_RAWNAND_H */ -- cgit v1.2.3 From d974541e23791e189c5faa0462223d29352cecc6 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Sun, 28 Oct 2018 16:12:45 +0100 Subject: mtd: rawnand: Move all page cache related fields to a sub-struct Looking at the field names it's hard to tell what ->data_buf, ->pagebuf and ->pagebuf_bitflips are for. Clarify that by moving those fields in a sub-struct named pagecache. Signed-off-by: Boris Brezillon Signed-off-by: Miquel Raynal Reviewed-by: Frieder Schrempf --- include/linux/mtd/rawnand.h | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 253f9942a919..99250dc848e8 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1007,10 +1007,10 @@ struct nand_legacy { * @chipsize: [INTERN] the size of one chip for multichip arrays * @pagemask: [INTERN] page number mask = number of (pages / chip) - 1 * @data_buf: [INTERN] buffer for data, size is (page size + oobsize). - * @pagebuf: [INTERN] holds the pagenumber which is currently in - * data_buf. - * @pagebuf_bitflips: [INTERN] holds the bitflip count for the page which is - * currently in data_buf. + * @pagecache: Structure containing page cache related fields + * @pagecache.bitflips: Number of bitflips of the cached page + * @pagecache.page: Page number currently in the cache. -1 means no page is + * currently cached * @subpagesize: [INTERN] holds the subpagesize * @id: [INTERN] holds NAND ID * @parameters: [INTERN] holds generic parameters under an easily @@ -1060,8 +1060,12 @@ struct nand_chip { uint64_t chipsize; int pagemask; u8 *data_buf; - int pagebuf; - unsigned int pagebuf_bitflips; + + struct { + unsigned int bitflips; + int page; + } pagecache; + int subpagesize; uint8_t bits_per_cell; uint16_t ecc_strength_ds; @@ -1366,7 +1370,7 @@ void nand_deselect_target(struct nand_chip *chip); */ static inline void *nand_get_data_buf(struct nand_chip *chip) { - chip->pagebuf = -1; + chip->pagecache.page = -1; return chip->data_buf; } -- cgit v1.2.3 From 7beb37e5f0d29d7d23aec0e47900ff4dfa8c2e55 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Sun, 4 Nov 2018 14:50:28 +0100 Subject: mtd: rawnand: Use nanddev_mtd_max_bad_blocks() nanddev_mtd_max_bad_blocks() is implemented by the generic NAND layer and is already doing what we need. Reuse this function instead of having our own implementation. While at it, get rid of the ->max_bb_per_die and ->blocks_per_die fields which are now unused. Signed-off-by: Boris Brezillon Signed-off-by: Miquel Raynal Reviewed-by: Frieder Schrempf --- include/linux/mtd/rawnand.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 99250dc848e8..9d0cdae4e204 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1015,9 +1015,6 @@ struct nand_legacy { * @id: [INTERN] holds NAND ID * @parameters: [INTERN] holds generic parameters under an easily * readable form. - * @max_bb_per_die: [INTERN] the max number of bad blocks each die of a - * this nand device will encounter their life times. - * @blocks_per_die: [INTERN] The number of PEBs in a die * @data_interface: [INTERN] NAND interface timing information * @cur_cs: currently selected target. -1 means no target selected, * otherwise we should always have cur_cs >= 0 && @@ -1076,8 +1073,6 @@ struct nand_chip { struct nand_id id; struct nand_parameters parameters; - u16 max_bb_per_die; - u32 blocks_per_die; struct nand_data_interface data_interface; -- cgit v1.2.3 From 298151689b33e04eaf09cf22e1d42396f7723690 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Thu, 25 Oct 2018 17:16:47 +0200 Subject: mtd: rawnand: Get rid of chip->bits_per_cell Now that we inherit from nand_device, we can use nand_device->memorg.bits_per_cell instead of having our own field at the nand_chip level. Signed-off-by: Boris Brezillon Signed-off-by: Miquel Raynal Reviewed-by: Frieder Schrempf --- include/linux/mtd/rawnand.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 9d0cdae4e204..b2570adab911 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -992,7 +992,6 @@ struct nand_legacy { * @badblockbits: [INTERN] minimum number of set bits in a good block's * bad block marker position; i.e., BBM == 11110111b is * not bad when badblockbits == 7 - * @bits_per_cell: [INTERN] number of bits per cell. i.e., 1 means SLC. * @ecc_strength_ds: [INTERN] ECC correctability from the datasheet. * Minimum amount of bit errors per @ecc_step_ds guaranteed * to be correctable. If unknown, set to zero. @@ -1064,7 +1063,6 @@ struct nand_chip { } pagecache; int subpagesize; - uint8_t bits_per_cell; uint16_t ecc_strength_ds; uint16_t ecc_step_ds; int onfi_timing_mode_default; @@ -1236,9 +1234,9 @@ int nand_create_bbt(struct nand_chip *chip); */ static inline bool nand_is_slc(struct nand_chip *chip) { - WARN(chip->bits_per_cell == 0, + WARN(nanddev_bits_per_cell(&chip->base) == 0, "chip->bits_per_cell is used uninitialized\n"); - return chip->bits_per_cell == 1; + return nanddev_bits_per_cell(&chip->base) == 1; } /** -- cgit v1.2.3 From 6c836d515ff85e333488692c67969f714654a1c6 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Mon, 29 Oct 2018 11:22:16 +0100 Subject: mtd: rawnand: Get rid of chip->chipsize The target size can now be returned by nanddev_get_targetsize(). Get rid of the chip->chipsize field and use this helper instead. Signed-off-by: Boris Brezillon Reviewed-by: Frieder Schrempf Signed-off-by: Miquel Raynal --- include/linux/mtd/rawnand.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index b2570adab911..02657591c3fc 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1003,7 +1003,6 @@ struct nand_legacy { * ONFI compliant or deduced from the datasheet if * the NAND chip is not ONFI compliant. * @numchips: [INTERN] number of physical chips - * @chipsize: [INTERN] the size of one chip for multichip arrays * @pagemask: [INTERN] page number mask = number of (pages / chip) - 1 * @data_buf: [INTERN] buffer for data, size is (page size + oobsize). * @pagecache: Structure containing page cache related fields @@ -1053,7 +1052,6 @@ struct nand_chip { int bbt_erase_shift; int chip_shift; int numchips; - uint64_t chipsize; int pagemask; u8 *data_buf; -- cgit v1.2.3 From 32813e288414fecce18f37f8f0d0414a64b45c56 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Mon, 29 Oct 2018 11:58:29 +0100 Subject: mtd: rawnand: Get rid of chip->numchips The same information is provided by nanddev_ntargets(). Signed-off-by: Boris Brezillon Signed-off-by: Miquel Raynal Reviewed-by: Frieder Schrempf --- include/linux/mtd/rawnand.h | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 02657591c3fc..27c968d370bf 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1002,7 +1002,6 @@ struct nand_legacy { * set to the actually used ONFI mode if the chip is * ONFI compliant or deduced from the datasheet if * the NAND chip is not ONFI compliant. - * @numchips: [INTERN] number of physical chips * @pagemask: [INTERN] page number mask = number of (pages / chip) - 1 * @data_buf: [INTERN] buffer for data, size is (page size + oobsize). * @pagecache: Structure containing page cache related fields @@ -1016,8 +1015,9 @@ struct nand_legacy { * @data_interface: [INTERN] NAND interface timing information * @cur_cs: currently selected target. -1 means no target selected, * otherwise we should always have cur_cs >= 0 && - * cur_cs < numchips. NAND Controller drivers should not - * modify this value, but they're allowed to read it. + * cur_cs < nanddev_ntargets(). NAND Controller drivers + * should not modify this value, but they're allowed to + * read it. * @read_retries: [INTERN] the number of read retry modes supported * @lock: lock protecting the suspended field. Also used to * serialize accesses to the NAND device. @@ -1051,7 +1051,6 @@ struct nand_chip { int phys_erase_shift; int bbt_erase_shift; int chip_shift; - int numchips; int pagemask; u8 *data_buf; -- cgit v1.2.3 From 6a1b66d6c8d691b1395d5c3b660ac4469c25bc28 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Sun, 4 Nov 2018 16:09:42 +0100 Subject: mtd: rawnand: Get rid of chip->ecc_{strength,step}_ds nand_device embeds a nand_ecc_req object which contains the minimum strength and step-size required by the NAND device. Drop the chip->ecc_{strength,step}_ds fields and use chip->base.eccreq.{strength,step_size} instead. Signed-off-by: Boris Brezillon Signed-off-by: Miquel Raynal Reviewed-by: Frieder Schrempf --- include/linux/mtd/rawnand.h | 8 -------- 1 file changed, 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 27c968d370bf..c0589f82c1f8 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -992,12 +992,6 @@ struct nand_legacy { * @badblockbits: [INTERN] minimum number of set bits in a good block's * bad block marker position; i.e., BBM == 11110111b is * not bad when badblockbits == 7 - * @ecc_strength_ds: [INTERN] ECC correctability from the datasheet. - * Minimum amount of bit errors per @ecc_step_ds guaranteed - * to be correctable. If unknown, set to zero. - * @ecc_step_ds: [INTERN] ECC step required by the @ecc_strength_ds, - * also from the datasheet. It is the recommended ECC step - * size, if known; if unknown, set to zero. * @onfi_timing_mode_default: [INTERN] default ONFI timing mode. This field is * set to the actually used ONFI mode if the chip is * ONFI compliant or deduced from the datasheet if @@ -1060,8 +1054,6 @@ struct nand_chip { } pagecache; int subpagesize; - uint16_t ecc_strength_ds; - uint16_t ecc_step_ds; int onfi_timing_mode_default; int badblockpos; int badblockbits; -- cgit v1.2.3 From e90a619fb7e1acb5e18f1ab618c6d10b08f0fc70 Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Thu, 7 Feb 2019 15:28:24 +0100 Subject: mtd: nand: omap: Fix comment in platform data using wrong Kconfig symbol The symbol that is being used in the #if/#endif block is not the one which is mentioned at the bottom. Fixes: 93af53b8633c ("nand: omap2: Remove horrible ifdefs to fix module probe") Signed-off-by: Miquel Raynal --- include/linux/platform_data/elm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/elm.h b/include/linux/platform_data/elm.h index b8686c00f15f..fef4b081b736 100644 --- a/include/linux/platform_data/elm.h +++ b/include/linux/platform_data/elm.h @@ -60,6 +60,6 @@ static inline int elm_config(struct device *dev, enum bch_ecc bch_type, { return -ENOSYS; } -#endif /* CONFIG_MTD_NAND_ECC_BCH */ +#endif /* CONFIG_MTD_NAND_OMAP_BCH */ #endif /* __ELM_H */ -- cgit v1.2.3 From 27157af66324d529b43231c12b5d1e1a3e9fa620 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 4 Apr 2019 23:55:14 +0700 Subject: gpio: mmio: Drop bgpio_dir_inverted The direction inversion semantics are now handled by simply using the registers for in/out available, no need to keep track of inversion semantics exmplicitly anymore. Reviewed-by: Bartosz Golaszewski Reviewed-by: Jan Kotas Signed-off-by: Linus Walleij --- include/linux/gpio/driver.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 95a51794c24a..4d69d458cf9f 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -229,9 +229,6 @@ struct gpio_irq_chip { * @reg_clr: output clear register (out=low) for generic GPIO * @reg_dir_out: direction out setting register for generic GPIO * @reg_dir_in: direction in setting register for generic GPIO - * @bgpio_dir_inverted: indicates that the direction register is inverted - * (gpiolib private state variable) this means @reg_dir_in is - * available but not @reg_dir_out. * @bgpio_dir_unreadable: indicates that the direction register(s) cannot * be read and we need to rely on out internal state tracking. * @bgpio_bits: number of register bits used for a generic GPIO i.e. @@ -305,7 +302,6 @@ struct gpio_chip { void __iomem *reg_clr; void __iomem *reg_dir_out; void __iomem *reg_dir_in; - bool bgpio_dir_inverted; bool bgpio_dir_unreadable; int bgpio_bits; spinlock_t bgpio_lock; -- cgit v1.2.3 From 9083e4986124389e2a7c0ffca95630a4983887f0 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 26 Mar 2019 12:19:52 +0100 Subject: cpufreq: intel_pstate: Update max frequency on global turbo changes While the cpuinfo.max_freq value doesn't really matter for intel_pstate in the active mode, in the passive mode it is used by governors as the maximum physical frequency of the CPU and the results of governor computations generally depend on it. Also it is made available to user space via sysfs and it should match the current HW configuration. For this reason, make intel_pstate update cpuinfo.max_freq for all CPUs if it detects a global change of turbo frequency settings from "disable" to "enable" or the other way associated with a _PPC change notification from the platform firmware. Note that policy_is_inactive(), cpufreq_cpu_acquire(), cpufreq_cpu_release(), and cpufreq_set_policy() need to be made available to it for this purpose. Link: https://bugzilla.kernel.org/show_bug.cgi?id=200759 Reported-by: Gabriele Mazzotta Tested-by: Gabriele Mazzotta Signed-off-by: Rafael J. Wysocki Acked-by: Viresh Kumar --- include/linux/cpufreq.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 5005ea40364f..684caf067003 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -178,6 +178,11 @@ static inline struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu) static inline void cpufreq_cpu_put(struct cpufreq_policy *policy) { } #endif +static inline bool policy_is_inactive(struct cpufreq_policy *policy) +{ + return cpumask_empty(policy->cpus); +} + static inline bool policy_is_shared(struct cpufreq_policy *policy) { return cpumask_weight(policy->cpus) > 1; @@ -193,7 +198,12 @@ unsigned int cpufreq_quick_get_max(unsigned int cpu); void disable_cpufreq(void); u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy); + +struct cpufreq_policy *cpufreq_cpu_acquire(unsigned int cpu); +void cpufreq_cpu_release(struct cpufreq_policy *policy); int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu); +int cpufreq_set_policy(struct cpufreq_policy *policy, + struct cpufreq_policy *new_policy); void cpufreq_update_policy(unsigned int cpu); void cpufreq_update_limits(unsigned int cpu); bool have_governor_per_policy(void); -- cgit v1.2.3 From 60ca1e5a200cd294a12907fa36dece4241db4ab8 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 22 Feb 2019 12:59:59 +0000 Subject: mmiowb: Hook up mmiowb helpers to spinlocks and generic I/O accessors Removing explicit calls to mmiowb() from driver code means that we must now call into the generic mmiowb_spin_{lock,unlock}() functions from the core spinlock code. In order to elide barriers following critical sections without any I/O writes, we also hook into the asm-generic I/O routines. Acked-by: Linus Torvalds Signed-off-by: Will Deacon --- include/linux/spinlock.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index e089157dcf97..ed7c4d6b8235 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h @@ -57,6 +57,7 @@ #include #include #include +#include /* @@ -178,6 +179,7 @@ static inline void do_raw_spin_lock(raw_spinlock_t *lock) __acquires(lock) { __acquire(lock); arch_spin_lock(&lock->raw_lock); + mmiowb_spin_lock(); } #ifndef arch_spin_lock_flags @@ -189,15 +191,22 @@ do_raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long *flags) __acquires(lo { __acquire(lock); arch_spin_lock_flags(&lock->raw_lock, *flags); + mmiowb_spin_lock(); } static inline int do_raw_spin_trylock(raw_spinlock_t *lock) { - return arch_spin_trylock(&(lock)->raw_lock); + int ret = arch_spin_trylock(&(lock)->raw_lock); + + if (ret) + mmiowb_spin_lock(); + + return ret; } static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock) { + mmiowb_spin_unlock(); arch_spin_unlock(&lock->raw_lock); __release(lock); } -- cgit v1.2.3 From fb24ea52f78e0d595852e09e3a55697c8f442189 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 22 Feb 2019 17:14:59 +0000 Subject: drivers: Remove explicit invocations of mmiowb() mmiowb() is now implied by spin_unlock() on architectures that require it, so there is no reason to call it from driver code. This patch was generated using coccinelle: @mmiowb@ @@ - mmiowb(); and invoked as: $ for d in drivers include/linux/qed sound; do \ spatch --include-headers --sp-file mmiowb.cocci --dir $d --in-place; done NOTE: mmiowb() has only ever guaranteed ordering in conjunction with spin_unlock(). However, pairing each mmiowb() removal in this patch with the corresponding call to spin_unlock() is not at all trivial, so there is a small chance that this change may regress any drivers incorrectly relying on mmiowb() to order MMIO writes between CPUs using lock-free synchronisation. If you've ended up bisecting to this commit, you can reintroduce the mmiowb() calls using wmb() instead, which should restore the old behaviour on all architectures other than some esoteric ia64 systems. Acked-by: Linus Torvalds Signed-off-by: Will Deacon --- include/linux/qed/qed_if.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h index f6165d304b4d..48841e5dab90 100644 --- a/include/linux/qed/qed_if.h +++ b/include/linux/qed/qed_if.h @@ -1338,7 +1338,6 @@ static inline u16 qed_sb_update_sb_idx(struct qed_sb_info *sb_info) } /* Let SB update */ - mmiowb(); return rc; } @@ -1374,7 +1373,6 @@ static inline void qed_sb_ack(struct qed_sb_info *sb_info, /* Both segments (interrupts & acks) are written to same place address; * Need to guarantee all commands will be received (in-order) by HW. */ - mmiowb(); barrier(); } -- cgit v1.2.3 From 163363455b42a1cf833742177149d1352dfe673e Mon Sep 17 00:00:00 2001 From: Yafang Shao Date: Tue, 26 Mar 2019 20:13:09 +0800 Subject: tracing: introduce TRACE_EVENT_NOP() Sometimes we want to define a tracepoint as a do-nothing function. So I introduce TRACE_EVENT_NOP, DECLARE_EVENT_CLASS_NOP and DEFINE_EVENT_NOP for this kind of usage. Link: http://lkml.kernel.org/r/1553602391-11926-2-git-send-email-laoar.shao@gmail.com Signed-off-by: Yafang Shao Signed-off-by: Steven Rostedt (VMware) --- include/linux/tracepoint.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'include/linux') diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 9c3186578ce0..86b019aa2839 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -548,4 +548,19 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p) #define TRACE_EVENT_PERF_PERM(event, expr...) +#define DECLARE_EVENT_NOP(name, proto, args) \ + static inline void trace_##name(proto) \ + { } \ + static inline bool trace_##name##_enabled(void) \ + { \ + return false; \ + } + +#define TRACE_EVENT_NOP(name, proto, args, struct, assign, print) \ + DECLARE_EVENT_NOP(name, PARAMS(proto), PARAMS(args)) + +#define DECLARE_EVENT_CLASS_NOP(name, proto, args, tstruct, assign, print) +#define DEFINE_EVENT_NOP(template, name, proto, args) \ + DECLARE_EVENT_NOP(name, PARAMS(proto), PARAMS(args)) + #endif /* ifdef TRACE_EVENT (see note above) */ -- cgit v1.2.3 From d7e02a931235de0779d44c6f8d211df0eca304b8 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 13 Mar 2019 18:45:21 +0100 Subject: dma-mapping: remove leftover NULL device support Most dma_map_ops implementations already had some issues with a NULL device, or did simply crash if one was fed to them. Now that we have cleaned up all the obvious offenders we can stop to pretend we support this mode. Signed-off-by: Christoph Hellwig --- include/linux/dma-mapping.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 75e60be91e5f..6309a721394b 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -267,9 +267,9 @@ size_t dma_direct_max_mapping_size(struct device *dev); static inline const struct dma_map_ops *get_dma_ops(struct device *dev) { - if (dev && dev->dma_ops) + if (dev->dma_ops) return dev->dma_ops; - return get_arch_dma_ops(dev ? dev->bus : NULL); + return get_arch_dma_ops(dev->bus); } static inline void set_dma_ops(struct device *dev, @@ -650,7 +650,7 @@ static inline void dma_free_coherent(struct device *dev, size_t size, static inline u64 dma_get_mask(struct device *dev) { - if (dev && dev->dma_mask && *dev->dma_mask) + if (dev->dma_mask && *dev->dma_mask) return *dev->dma_mask; return DMA_BIT_MASK(32); } -- cgit v1.2.3 From fd69c399c7d6262086b6b820757c6aeaa71feeba Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Mon, 8 Apr 2019 10:15:59 +0200 Subject: datagram: remove rendundant 'peeked' argument After commit a297569fe00a ("net/udp: do not touch skb->peeked unless really needed") the 'peeked' argument of __skb_try_recv_datagram() and friends is always equal to !!'flags & MSG_PEEK'. Since such argument is really a boolean info, and the callers have already 'flags & MSG_PEEK' handy, we can remove it and clean-up the code a bit. Signed-off-by: Paolo Abeni Acked-by: Willem de Bruijn Signed-off-by: David S. Miller --- include/linux/skbuff.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 69b5538adcea..a06275a618f0 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3370,17 +3370,17 @@ struct sk_buff *__skb_try_recv_from_queue(struct sock *sk, unsigned int flags, void (*destructor)(struct sock *sk, struct sk_buff *skb), - int *peeked, int *off, int *err, + int *off, int *err, struct sk_buff **last); struct sk_buff *__skb_try_recv_datagram(struct sock *sk, unsigned flags, void (*destructor)(struct sock *sk, struct sk_buff *skb), - int *peeked, int *off, int *err, + int *off, int *err, struct sk_buff **last); struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned flags, void (*destructor)(struct sock *sk, struct sk_buff *skb), - int *peeked, int *off, int *err); + int *off, int *err); struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock, int *err); __poll_t datagram_poll(struct file *file, struct socket *sock, -- cgit v1.2.3 From 6256f7f7f217b2216fcb73929508325f4ee98237 Mon Sep 17 00:00:00 2001 From: Keerthy Date: Wed, 3 Apr 2019 10:27:39 +0530 Subject: rtc: OMAP: Add support for rtc-only mode Prepare rtc driver for rtc-only with DDR in self-refresh mode. omap_rtc_power_off now should cater to two features: 1) RTC plus DDR in self-refresh is power a saving mode where in the entire system including the different voltage rails from PMIC are shutdown except the ones feeding on to RTC and DDR. DDR is kept in self-refresh hence the contents are preserved. RTC ALARM2 is connected to PMIC_EN line once we the ALARM2 is triggered we enter the mode with DDR in self-refresh and RTC Ticking. After a predetermined time an RTC ALARM1 triggers waking up the system[1]. The control goes to bootloader. The bootloader then checks RTC scratchpad registers to confirm it was an rtc_only wakeup and follows a different path, configure bare minimal clocks for ddr and then jumps to the resume address in another RTC scratchpad registers and transfers the control to Kernel. Kernel then restores the saved context. omap_rtc_power_off_program does the ALARM2 programming part. [1] http://www.ti.com/lit/ug/spruhl7h/spruhl7h.pdf Page 2884 2) Power-off: This is usual poweroff mode. omap_rtc_power_off calls the above omap_rtc_power_off_program function and in addition to that programs the OMAP_RTC_PMIC_REG for any external wake ups for PMIC like the pushbutton and shuts off the PMIC. Hence the split in omap_rtc_power_off. Signed-off-by: Keerthy Acked-by: Alexandre Belloni [tony@atomide.com: folded in a fix for compile warning] Signed-off-by: Tony Lindgren --- include/linux/rtc/rtc-omap.h | 7 +++++++ 1 file changed, 7 insertions(+) create mode 100644 include/linux/rtc/rtc-omap.h (limited to 'include/linux') diff --git a/include/linux/rtc/rtc-omap.h b/include/linux/rtc/rtc-omap.h new file mode 100644 index 000000000000..9f03a329e63f --- /dev/null +++ b/include/linux/rtc/rtc-omap.h @@ -0,0 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _LINUX_RTCOMAP_H_ +#define _LINUX_RTCOMAP_H_ + +int omap_rtc_power_off_program(struct device *dev); +#endif /* _LINUX_RTCOMAP_H_ */ -- cgit v1.2.3 From 44c22a2d12a5c04da56e746819a5d2cc4cf4a5d7 Mon Sep 17 00:00:00 2001 From: Keerthy Date: Wed, 3 Apr 2019 10:27:40 +0530 Subject: ARM: OMAP2+: pm33xx: Add support for rtc+ddr in self refresh mode Add support for rtc+ddr in self refresh mode. Add addtional pm hooks for save/restore and rtc suspend/resume. Signed-off-by: Keerthy Signed-off-by: Tony Lindgren --- include/linux/platform_data/pm33xx.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/pm33xx.h b/include/linux/platform_data/pm33xx.h index fbf5ed73c7cc..dd5971937a64 100644 --- a/include/linux/platform_data/pm33xx.h +++ b/include/linux/platform_data/pm33xx.h @@ -51,6 +51,11 @@ struct am33xx_pm_platform_data { unsigned long args); struct am33xx_pm_sram_addr *(*get_sram_addrs)(void); void __iomem *(*get_rtc_base_addr)(void); + void (*save_context)(void); + void (*restore_context)(void); + void (*prepare_rtc_suspend)(void); + void (*prepare_rtc_resume)(void); + int (*check_off_mode_enable)(void); }; struct am33xx_pm_sram_data { -- cgit v1.2.3 From 3b15d09f7e6db44065aaba5fd16dc7420035c5ad Mon Sep 17 00:00:00 2001 From: Li RongQing Date: Thu, 28 Feb 2019 13:13:26 +0800 Subject: time: Introduce jiffies64_to_msecs() there is a similar helper in net/netfilter/nf_tables_api.c, this maybe become a common request someday, so move it to time.c Signed-off-by: Zhang Yu Signed-off-by: Li RongQing Acked-by: John Stultz Signed-off-by: Pablo Neira Ayuso --- include/linux/jiffies.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h index fa928242567d..1b6d31da7cbc 100644 --- a/include/linux/jiffies.h +++ b/include/linux/jiffies.h @@ -297,6 +297,7 @@ static inline u64 jiffies_to_nsecs(const unsigned long j) } extern u64 jiffies64_to_nsecs(u64 j); +extern u64 jiffies64_to_msecs(u64 j); extern unsigned long __msecs_to_jiffies(const unsigned int m); #if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ) -- cgit v1.2.3 From 01902f8c85bfde343a4c2b7428d18762442f3a25 Mon Sep 17 00:00:00 2001 From: Li RongQing Date: Tue, 26 Mar 2019 20:06:20 +0800 Subject: netfilter: optimize nf_inet_addr_cmp optimize nf_inet_addr_cmp by 64bit xor computation similar to ipv6_addr_equal() Signed-off-by: Yuan Linsi Signed-off-by: Li RongQing Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h index 72cb19c3db6a..4e0145ea033e 100644 --- a/include/linux/netfilter.h +++ b/include/linux/netfilter.h @@ -24,10 +24,17 @@ static inline int NF_DROP_GETERR(int verdict) static inline int nf_inet_addr_cmp(const union nf_inet_addr *a1, const union nf_inet_addr *a2) { +#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 + const unsigned long *ul1 = (const unsigned long *)a1; + const unsigned long *ul2 = (const unsigned long *)a2; + + return ((ul1[0] ^ ul2[0]) | (ul1[1] ^ ul2[1])) == 0UL; +#else return a1->all[0] == a2->all[0] && a1->all[1] == a2->all[1] && a1->all[2] == a2->all[2] && a1->all[3] == a2->all[3]; +#endif } static inline void nf_inet_addr_mask(const union nf_inet_addr *a1, -- cgit v1.2.3 From c1deb065cf3b5bcd483e3f03479f930edb151b99 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Wed, 27 Mar 2019 09:22:25 +0100 Subject: netfilter: nf_tables: merge route type into core very little code, so it really doesn't make sense to have extra modules or even a kconfig knob for this. Merge them and make functionality available unconditionally. The merge makes inet family route support trivial, so add it as well here. Before: text data bss dec hex filename 835 832 0 1667 683 nft_chain_route_ipv4.ko 870 832 0 1702 6a6 nft_chain_route_ipv6.ko 111568 2556 529 114653 1bfdd nf_tables.ko After: text data bss dec hex filename 113133 2556 529 116218 1c5fa nf_tables.ko Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter_ipv6.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h index 471e9467105b..12113e502656 100644 --- a/include/linux/netfilter_ipv6.h +++ b/include/linux/netfilter_ipv6.h @@ -87,6 +87,21 @@ static inline int nf_ip6_route(struct net *net, struct dst_entry **dst, } int ip6_route_me_harder(struct net *net, struct sk_buff *skb); + +static inline int nf_ip6_route_me_harder(struct net *net, struct sk_buff *skb) +{ +#if IS_MODULE(CONFIG_IPV6) + const struct nf_ipv6_ops *v6_ops = nf_get_ipv6_ops(); + + if (!v6_ops) + return -EHOSTUNREACH; + + return v6_ops->route_me_harder(net, skb); +#else + return ip6_route_me_harder(net, skb); +#endif +} + __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook, unsigned int dataoff, u_int8_t protocol); -- cgit v1.2.3 From 4806e975729f99c7908d1688a143f1e16d464e6c Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Wed, 27 Mar 2019 09:22:26 +0100 Subject: netfilter: replace NF_NAT_NEEDED with IS_ENABLED(CONFIG_NF_NAT) NF_NAT_NEEDED is true whenever nat support for either ipv4 or ipv6 is enabled. Now that the af-specific nat configuration switches have been removed, IS_ENABLED(CONFIG_NF_NAT) has the same effect. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h index 4e0145ea033e..a7252f3baeb0 100644 --- a/include/linux/netfilter.h +++ b/include/linux/netfilter.h @@ -367,7 +367,7 @@ extern struct nf_nat_hook __rcu *nf_nat_hook; static inline void nf_nat_decode_session(struct sk_buff *skb, struct flowi *fl, u_int8_t family) { -#ifdef CONFIG_NF_NAT_NEEDED +#if IS_ENABLED(CONFIG_NF_NAT) struct nf_nat_hook *nat_hook; rcu_read_lock(); -- cgit v1.2.3 From 22c7652cdaa8cd33ce78bacceb4e826a3f795873 Mon Sep 17 00:00:00 2001 From: Fernando Fernandez Mancera Date: Wed, 27 Mar 2019 11:36:26 +0100 Subject: netfilter: nft_osf: Add version option support Add version option support to the nftables "osf" expression. Signed-off-by: Fernando Fernandez Mancera Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter/nfnetlink_osf.h | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netfilter/nfnetlink_osf.h b/include/linux/netfilter/nfnetlink_osf.h index c6000046c966..788613f36935 100644 --- a/include/linux/netfilter/nfnetlink_osf.h +++ b/include/linux/netfilter/nfnetlink_osf.h @@ -21,13 +21,18 @@ struct nf_osf_finger { struct nf_osf_user_finger finger; }; +struct nf_osf_data { + const char *genre; + const char *version; +}; + bool nf_osf_match(const struct sk_buff *skb, u_int8_t family, int hooknum, struct net_device *in, struct net_device *out, const struct nf_osf_info *info, struct net *net, const struct list_head *nf_osf_fingers); -const char *nf_osf_find(const struct sk_buff *skb, - const struct list_head *nf_osf_fingers, - const int ttl_check); +bool nf_osf_find(const struct sk_buff *skb, + const struct list_head *nf_osf_fingers, + const int ttl_check, struct nf_osf_data *data); #endif /* _NFOSF_H */ -- cgit v1.2.3 From 3b0a081db1f730373993c7a27936778402a3322c Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Thu, 4 Apr 2019 10:58:20 +0200 Subject: netfilter: make two functions static They have no external callers anymore. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter/x_tables.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h index bf384b3eedb8..1f852ef7b098 100644 --- a/include/linux/netfilter/x_tables.h +++ b/include/linux/netfilter/x_tables.h @@ -317,7 +317,6 @@ struct xt_table_info *xt_replace_table(struct xt_table *table, int *error); struct xt_match *xt_find_match(u8 af, const char *name, u8 revision); -struct xt_target *xt_find_target(u8 af, const char *name, u8 revision); struct xt_match *xt_request_find_match(u8 af, const char *name, u8 revision); struct xt_target *xt_request_find_target(u8 af, const char *name, u8 revision); int xt_find_revision(u8 af, const char *name, u8 revision, int target, -- cgit v1.2.3 From 3b8b11f96616c2e763ebcc093b778b309fc07a92 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Fri, 5 Apr 2019 21:23:13 +0200 Subject: net: phy: improve link partner capability detection genphy_read_status() so far checks phydev->supported, not the actual PHY capabilities. This can make a difference if the supported speeds have been limited by of_set_phy_supported() or phy_set_max_speed(). It seems that this issue only affects the link partner advertisements as displayed by ethtool. Also this patch wouldn't apply to older kernels because linkmode bitmaps have been introduced recently. Therefore net-next. Signed-off-by: Heiner Kallweit Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- include/linux/phy.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/phy.h b/include/linux/phy.h index ab7439b3da2b..0f9552b17ee7 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -345,6 +345,7 @@ struct phy_c45_device_ids { * is_c45: Set to true if this phy uses clause 45 addressing. * is_internal: Set to true if this phy is internal to a MAC. * is_pseudo_fixed_link: Set to true if this phy is an Ethernet switch, etc. + * is_gigabit_capable: Set to true if PHY supports 1000Mbps * has_fixups: Set to true if this phy has fixups/quirks. * suspended: Set to true if this phy has been suspended successfully. * sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal. @@ -382,6 +383,7 @@ struct phy_device { unsigned is_c45:1; unsigned is_internal:1; unsigned is_pseudo_fixed_link:1; + unsigned is_gigabit_capable:1; unsigned has_fixups:1; unsigned suspended:1; unsigned sysfs_links:1; -- cgit v1.2.3 From 458a3bf82df4fe1f951d0f52b1e0c1e9d5a88a3b Mon Sep 17 00:00:00 2001 From: "Tobin C. Harding" Date: Fri, 5 Apr 2019 12:58:58 +1100 Subject: lib/string: Add strscpy_pad() function We have a function to copy strings safely and we have a function to copy strings and zero the tail of the destination (if source string is shorter than destination buffer) but we do not have a function to do both at once. This means developers must write this themselves if they desire this functionality. This is a chore, and also leaves us open to off by one errors unnecessarily. Add a function that calls strscpy() then memset()s the tail to zero if the source string is shorter than the destination buffer. Acked-by: Kees Cook Signed-off-by: Tobin C. Harding Signed-off-by: Shuah Khan --- include/linux/string.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/string.h b/include/linux/string.h index 6ab0a6fa512e..4deb11f7976b 100644 --- a/include/linux/string.h +++ b/include/linux/string.h @@ -31,6 +31,10 @@ size_t strlcpy(char *, const char *, size_t); #ifndef __HAVE_ARCH_STRSCPY ssize_t strscpy(char *, const char *, size_t); #endif + +/* Wraps calls to strscpy()/memset(), no arch specific code required */ +ssize_t strscpy_pad(char *dest, const char *src, size_t count); + #ifndef __HAVE_ARCH_STRCAT extern char * strcat(char *, const char *); #endif -- cgit v1.2.3 From 6c110561eb2d4d1496961c13a92f96f29eea7c72 Mon Sep 17 00:00:00 2001 From: Dave Gerlach Date: Tue, 2 Apr 2019 11:57:42 -0500 Subject: memory: ti-emif-sram: Add ti_emif_run_hw_leveling for DDR3 hardware leveling In certain situations, such as when returning from low power modes, the EMIF must re-run hardware leveling to properly restore DDR3 access. This is accomplished by introducing a new ti-emif-sram-pm call, ti_emif_run_hw_leveling, to check if DDR3 is in use and if so, trigger the full write and read leveling processes. Suggested-by: Brad Griffis Signed-off-by: Dave Gerlach Acked-by: Santosh Shilimkar Signed-off-by: Tony Lindgren --- include/linux/ti-emif-sram.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ti-emif-sram.h b/include/linux/ti-emif-sram.h index 53604b087f2c..2fc854155c27 100644 --- a/include/linux/ti-emif-sram.h +++ b/include/linux/ti-emif-sram.h @@ -55,6 +55,7 @@ struct ti_emif_pm_data { struct ti_emif_pm_functions { u32 save_context; u32 restore_context; + u32 run_hw_leveling; u32 enter_sr; u32 exit_sr; u32 abort_sr; @@ -126,6 +127,8 @@ static inline void ti_emif_asm_offsets(void) offsetof(struct ti_emif_pm_functions, save_context)); DEFINE(EMIF_PM_RESTORE_CONTEXT_OFFSET, offsetof(struct ti_emif_pm_functions, restore_context)); + DEFINE(EMIF_PM_RUN_HW_LEVELING, + offsetof(struct ti_emif_pm_functions, run_hw_leveling)); DEFINE(EMIF_PM_ENTER_SR_OFFSET, offsetof(struct ti_emif_pm_functions, enter_sr)); DEFINE(EMIF_PM_EXIT_SR_OFFSET, -- cgit v1.2.3 From 8c1007fdc71fdf993885d47ad17d9cc0e0b97b1c Mon Sep 17 00:00:00 2001 From: "Tobin C. Harding" Date: Tue, 9 Apr 2019 10:43:57 +1000 Subject: docs: Add colon clearing sphinx warning Sphinx emits various warnings all caused by a missing colon before code block: WARNING: Block quote ends without a blank line; unexpected unindent. ERROR: Unexpected indentation. WARNING: Block quote ends without a blank line; unexpected unindent. Add the colon, clearing sphinx warnings. Signed-off-by: Tobin C. Harding Signed-off-by: Jonathan Corbet --- include/linux/wait.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/wait.h b/include/linux/wait.h index 5f3efabc36f4..b6f77cf60dd7 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -101,7 +101,7 @@ init_waitqueue_func_entry(struct wait_queue_entry *wq_entry, wait_queue_func_t f * lead to sporadic and non-obvious failure. * * Use either while holding wait_queue_head::lock or when used for wakeups - * with an extra smp_mb() like: + * with an extra smp_mb() like:: * * CPU0 - waker CPU1 - waiter * -- cgit v1.2.3 From 49a27e279052cf71ba931a26b00194ff46510480 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Wed, 27 Mar 2019 15:35:45 +0100 Subject: PM / Domains: Add generic data pointer to struct genpd_power_state Add a data pointer to the genpd_power_state struct, to allow a genpd backend driver to store per-state specific data. To introduce the pointer, change the way genpd deals with freeing of the corresponding allocated data. More precisely, clarify the responsibility of whom that shall free the data, by adding a ->free_states() callback to the generic_pm_domain structure. The one allocating the data will be expected to set the callback, to allow genpd to invoke it from genpd_remove(). Co-developed-by: Lina Iyer Acked-by: Daniel Lezcano Signed-off-by: Ulf Hansson [ rjw: Subject & changelog ] Signed-off-by: Rafael J. Wysocki --- include/linux/pm_domain.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 1ed5874bcee0..8e1399231753 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -69,6 +69,7 @@ struct genpd_power_state { s64 residency_ns; struct fwnode_handle *fwnode; ktime_t idle_time; + void *data; }; struct genpd_lock_ops; @@ -110,9 +111,10 @@ struct generic_pm_domain { struct device *dev); unsigned int flags; /* Bit field of configs for genpd */ struct genpd_power_state *states; + void (*free_states)(struct genpd_power_state *states, + unsigned int state_count); unsigned int state_count; /* number of states */ unsigned int state_idx; /* state that genpd will go to when off */ - void *free; /* Free the state that was allocated for default */ ktime_t on_time; ktime_t accounting_time; const struct genpd_lock_ops *lock_ops; -- cgit v1.2.3 From eb594b7325f61835555140922a4cb715264a325c Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Wed, 27 Mar 2019 15:35:46 +0100 Subject: PM / Domains: Add support for CPU devices to genpd To enable a CPU device to be attached to a PM domain managed by genpd, make a few changes to it for convenience. To be able to quickly find out what CPUs are attached to a genpd, which typically becomes useful from a genpd governor as subsequent changes are about to show, add a cpumask to struct generic_pm_domain to be updated when a CPU device gets attached to the genpd containing that cpumask. Also, propagate the cpumask changes upwards in the domain hierarchy to the master PM domains. This way, the cpumask for a genpd hierarchically reflects all CPUs attached to the topology below it. Finally, make this an opt-in feature, to avoid having to manage CPUs and the cpumask for a genpd that don't need it. To that end, add a new genpd configuration bit, GENPD_FLAG_CPU_DOMAIN. Co-developed-by: Lina Iyer Acked-by: Daniel Lezcano Signed-off-by: Ulf Hansson [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki --- include/linux/pm_domain.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 8e1399231753..a6e251fe9deb 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -16,6 +16,7 @@ #include #include #include +#include /* * Flags to control the behaviour of a genpd. @@ -42,11 +43,22 @@ * GENPD_FLAG_ACTIVE_WAKEUP: Instructs genpd to keep the PM domain powered * on, in case any of its attached devices is used * in the wakeup path to serve system wakeups. + * + * GENPD_FLAG_CPU_DOMAIN: Instructs genpd that it should expect to get + * devices attached, which may belong to CPUs or + * possibly have subdomains with CPUs attached. + * This flag enables the genpd backend driver to + * deploy idle power management support for CPUs + * and groups of CPUs. Note that, the backend + * driver must then comply with the so called, + * last-man-standing algorithm, for the CPUs in the + * PM domain. */ #define GENPD_FLAG_PM_CLK (1U << 0) #define GENPD_FLAG_IRQ_SAFE (1U << 1) #define GENPD_FLAG_ALWAYS_ON (1U << 2) #define GENPD_FLAG_ACTIVE_WAKEUP (1U << 3) +#define GENPD_FLAG_CPU_DOMAIN (1U << 4) enum gpd_status { GPD_STATE_ACTIVE = 0, /* PM domain is active */ @@ -94,6 +106,7 @@ struct generic_pm_domain { unsigned int suspended_count; /* System suspend device counter */ unsigned int prepared_count; /* Suspend counter of prepared devices */ unsigned int performance_state; /* Aggregated max performance state */ + cpumask_var_t cpus; /* A cpumask of the attached CPUs */ int (*power_off)(struct generic_pm_domain *domain); int (*power_on)(struct generic_pm_domain *domain); struct opp_table *opp_table; /* OPP table of the genpd */ -- cgit v1.2.3 From 6f9b83ac877fb5558d76b9f78590f3afd1bdf421 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Wed, 27 Mar 2019 15:35:47 +0100 Subject: cpuidle: Export the next timer expiration for CPUs To be able to predict the sleep duration for a CPU entering idle, it is essential to know the expiration time of the next timer. Both the teo and the menu cpuidle governors already use this information for CPU idle state selection. Moving forward, a similar prediction needs to be made for a group of idle CPUs rather than for a single one and the following changes implement a new genpd governor for that purpose. In order to support that feature, add a new function called tick_nohz_get_next_hrtimer() that will return the next hrtimer expiration time of a given CPU to be invoked after deciding whether or not to stop the scheduler tick on that CPU. Make the cpuidle core call tick_nohz_get_next_hrtimer() right before invoking the ->enter() callback provided by the cpuidle driver for the given state and store its return value in the per-CPU struct cpuidle_device, so as to make it available to code outside of cpuidle. Note that at the point when cpuidle calls tick_nohz_get_next_hrtimer(), the governor's ->select() callback has already returned and indicated whether or not the tick should be stopped, so in fact the value returned by tick_nohz_get_next_hrtimer() always is the next hrtimer expiration time for the given CPU, possibly including the tick (if it hasn't been stopped). Co-developed-by: Lina Iyer Co-developed-by: Daniel Lezcano Acked-by: Daniel Lezcano Signed-off-by: Ulf Hansson [ rjw: Subject & changelog ] Signed-off-by: Rafael J. Wysocki --- include/linux/cpuidle.h | 1 + include/linux/tick.h | 7 ++++++- 2 files changed, 7 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 3b39472324a3..bb9a0db89f1a 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -83,6 +83,7 @@ struct cpuidle_device { unsigned int use_deepest_state:1; unsigned int poll_time_limit:1; unsigned int cpu; + ktime_t next_hrtimer; int last_residency; struct cpuidle_state_usage states_usage[CPUIDLE_STATE_MAX]; diff --git a/include/linux/tick.h b/include/linux/tick.h index 55388ab45fd4..8891b5ac3e40 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -122,6 +122,7 @@ extern void tick_nohz_idle_enter(void); extern void tick_nohz_idle_exit(void); extern void tick_nohz_irq_exit(void); extern bool tick_nohz_idle_got_tick(void); +extern ktime_t tick_nohz_get_next_hrtimer(void); extern ktime_t tick_nohz_get_sleep_length(ktime_t *delta_next); extern unsigned long tick_nohz_get_idle_calls(void); extern unsigned long tick_nohz_get_idle_calls_cpu(int cpu); @@ -145,7 +146,11 @@ static inline void tick_nohz_idle_restart_tick(void) { } static inline void tick_nohz_idle_enter(void) { } static inline void tick_nohz_idle_exit(void) { } static inline bool tick_nohz_idle_got_tick(void) { return false; } - +static inline ktime_t tick_nohz_get_next_hrtimer(void) +{ + /* Next wake up is the tick period, assume it starts now */ + return ktime_add(ktime_get(), TICK_NSEC); +} static inline ktime_t tick_nohz_get_sleep_length(ktime_t *delta_next) { *delta_next = TICK_NSEC; -- cgit v1.2.3 From 5467a68cbf6884c9a9d91e2a89140afb1839c835 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 15 Mar 2019 22:23:19 -0400 Subject: dcache: sort the freeing-without-RCU-delay mess for good. For lockless accesses to dentries we don't have pinned we rely (among other things) upon having an RCU delay between dropping the last reference and actually freeing the memory. On the other hand, for things like pipes and sockets we neither do that kind of lockless access, nor want to deal with the overhead of an RCU delay every time a socket gets closed. So delay was made optional - setting DCACHE_RCUACCESS in ->d_flags made sure it would happen. We tried to avoid setting it unless we knew we need it. Unfortunately, that had led to recurring class of bugs, in which we missed the need to set it. We only really need it for dentries that are created by d_alloc_pseudo(), so let's not bother with trying to be smart - just make having an RCU delay the default. The ones that do *not* get it set the replacement flag (DCACHE_NORCU) and we'd better use that sparingly. d_alloc_pseudo() is the only such user right now. FWIW, the race that finally prompted that switch had been between __lock_parent() of immediate subdirectory of what's currently the root of a disconnected tree (e.g. from open-by-handle in progress) racing with d_splice_alias() elsewhere picking another alias for the same inode, either on outright corrupted fs image, or (in case of open-by-handle on NFS) that subdirectory having been just moved on server. It's not easy to hit, so the sky is not falling, but that's not the first race on similar missed cases and the logics for settinf DCACHE_RCUACCESS has gotten ridiculously convoluted. Cc: stable@vger.kernel.org Signed-off-by: Al Viro --- include/linux/dcache.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 60996e64c579..6e1e8e6602c6 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -176,7 +176,6 @@ struct dentry_operations { * typically using d_splice_alias. */ #define DCACHE_REFERENCED 0x00000040 /* Recently used, don't discard. */ -#define DCACHE_RCUACCESS 0x00000080 /* Entry has ever been RCU-visible */ #define DCACHE_CANT_MOUNT 0x00000100 #define DCACHE_GENOCIDE 0x00000200 @@ -217,6 +216,7 @@ struct dentry_operations { #define DCACHE_PAR_LOOKUP 0x10000000 /* being looked up (with parent locked shared) */ #define DCACHE_DENTRY_CURSOR 0x20000000 +#define DCACHE_NORCU 0x40000000 /* No RCU delay for freeing */ extern seqlock_t rename_lock; -- cgit v1.2.3 From ab1152dd5650d35da6f0f6d3c0cc18f86fdc0725 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 15 Mar 2019 22:58:11 -0400 Subject: unexport d_alloc_pseudo() No modular uses since introducion of alloc_file_pseudo(), and the only non-modular user not in alloc_file_pseudo() had actually been wrong - should've been d_alloc_anon(). Signed-off-by: Al Viro --- include/linux/dcache.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 6e1e8e6602c6..2f044e232e1b 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -235,7 +235,6 @@ extern void d_set_d_op(struct dentry *dentry, const struct dentry_operations *op /* allocate/de-allocate */ extern struct dentry * d_alloc(struct dentry *, const struct qstr *); extern struct dentry * d_alloc_anon(struct super_block *); -extern struct dentry * d_alloc_pseudo(struct super_block *, const struct qstr *); extern struct dentry * d_alloc_parallel(struct dentry *, const struct qstr *, wait_queue_head_t *); extern struct dentry * d_splice_alias(struct inode *, struct dentry *); -- cgit v1.2.3 From d8eca5bbb2be9bc7546f9e733786fa2f1a594c67 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 9 Apr 2019 23:20:03 +0200 Subject: bpf: implement lookup-free direct value access for maps This generic extension to BPF maps allows for directly loading an address residing inside a BPF map value as a single BPF ldimm64 instruction! The idea is similar to what BPF_PSEUDO_MAP_FD does today, which is a special src_reg flag for ldimm64 instruction that indicates that inside the first part of the double insns's imm field is a file descriptor which the verifier then replaces as a full 64bit address of the map into both imm parts. For the newly added BPF_PSEUDO_MAP_VALUE src_reg flag, the idea is the following: the first part of the double insns's imm field is again a file descriptor corresponding to the map, and the second part of the imm field is an offset into the value. The verifier will then replace both imm parts with an address that points into the BPF map value at the given value offset for maps that support this operation. Currently supported is array map with single entry. It is possible to support more than just single map element by reusing both 16bit off fields of the insns as a map index, so full array map lookup could be expressed that way. It hasn't been implemented here due to lack of concrete use case, but could easily be done so in future in a compatible way, since both off fields right now have to be 0 and would correctly denote a map index 0. The BPF_PSEUDO_MAP_VALUE is a distinct flag as otherwise with BPF_PSEUDO_MAP_FD we could not differ offset 0 between load of map pointer versus load of map's value at offset 0, and changing BPF_PSEUDO_MAP_FD's encoding into off by one to differ between regular map pointer and map value pointer would add unnecessary complexity and increases barrier for debugability thus less suitable. Using the second part of the imm field as an offset into the value does /not/ come with limitations since maximum possible value size is in u32 universe anyway. This optimization allows for efficiently retrieving an address to a map value memory area without having to issue a helper call which needs to prepare registers according to calling convention, etc, without needing the extra NULL test, and without having to add the offset in an additional instruction to the value base pointer. The verifier then treats the destination register as PTR_TO_MAP_VALUE with constant reg->off from the user passed offset from the second imm field, and guarantees that this is within bounds of the map value. Any subsequent operations are normally treated as typical map value handling without anything extra needed from verification side. The two map operations for direct value access have been added to array map for now. In future other types could be supported as well depending on the use case. The main use case for this commit is to allow for BPF loader support for global variables that reside in .data/.rodata/.bss sections such that we can directly load the address of them with minimal additional infrastructure required. Loader support has been added in subsequent commits for libbpf library. Signed-off-by: Daniel Borkmann Signed-off-by: Alexei Starovoitov --- include/linux/bpf.h | 6 ++++++ include/linux/bpf_verifier.h | 4 ++++ 2 files changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index a445194b5fb6..bd93a592dd29 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -57,6 +57,12 @@ struct bpf_map_ops { const struct btf *btf, const struct btf_type *key_type, const struct btf_type *value_type); + + /* Direct value access helpers. */ + int (*map_direct_value_addr)(const struct bpf_map *map, + u64 *imm, u32 off); + int (*map_direct_value_meta)(const struct bpf_map *map, + u64 imm, u32 *off); }; struct bpf_map { diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index fc8254d6b569..b3ab61fe1932 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -224,6 +224,10 @@ struct bpf_insn_aux_data { unsigned long map_state; /* pointer/poison value for maps */ s32 call_imm; /* saved imm field of call insn */ u32 alu_limit; /* limit for add/sub register with pointer */ + struct { + u32 map_index; /* index into used_maps[] */ + u32 map_off; /* offset from value base address */ + }; }; int ctx_field_size; /* the ctx field size for load insn, maybe 0 */ int sanitize_stack_off; /* stack slot to be cleared */ -- cgit v1.2.3 From 591fe9888d7809d9ee5c828020b6c6ae27c37229 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 9 Apr 2019 23:20:05 +0200 Subject: bpf: add program side {rd, wr}only support for maps This work adds two new map creation flags BPF_F_RDONLY_PROG and BPF_F_WRONLY_PROG in order to allow for read-only or write-only BPF maps from a BPF program side. Today we have BPF_F_RDONLY and BPF_F_WRONLY, but this only applies to system call side, meaning the BPF program has full read/write access to the map as usual while bpf(2) calls with map fd can either only read or write into the map depending on the flags. BPF_F_RDONLY_PROG and BPF_F_WRONLY_PROG allows for the exact opposite such that verifier is going to reject program loads if write into a read-only map or a read into a write-only map is detected. For read-only map case also some helpers are forbidden for programs that would alter the map state such as map deletion, update, etc. As opposed to the two BPF_F_RDONLY / BPF_F_WRONLY flags, BPF_F_RDONLY_PROG as well as BPF_F_WRONLY_PROG really do correspond to the map lifetime. We've enabled this generic map extension to various non-special maps holding normal user data: array, hash, lru, lpm, local storage, queue and stack. Further generic map types could be followed up in future depending on use-case. Main use case here is to forbid writes into .rodata map values from verifier side. Signed-off-by: Daniel Borkmann Acked-by: Martin KaFai Lau Signed-off-by: Alexei Starovoitov --- include/linux/bpf.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index bd93a592dd29..be20804631b5 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -430,6 +430,35 @@ struct bpf_array { #define BPF_COMPLEXITY_LIMIT_INSNS 1000000 /* yes. 1M insns */ #define MAX_TAIL_CALL_CNT 32 +#define BPF_F_ACCESS_MASK (BPF_F_RDONLY | \ + BPF_F_RDONLY_PROG | \ + BPF_F_WRONLY | \ + BPF_F_WRONLY_PROG) + +#define BPF_MAP_CAN_READ BIT(0) +#define BPF_MAP_CAN_WRITE BIT(1) + +static inline u32 bpf_map_flags_to_cap(struct bpf_map *map) +{ + u32 access_flags = map->map_flags & (BPF_F_RDONLY_PROG | BPF_F_WRONLY_PROG); + + /* Combination of BPF_F_RDONLY_PROG | BPF_F_WRONLY_PROG is + * not possible. + */ + if (access_flags & BPF_F_RDONLY_PROG) + return BPF_MAP_CAN_READ; + else if (access_flags & BPF_F_WRONLY_PROG) + return BPF_MAP_CAN_WRITE; + else + return BPF_MAP_CAN_READ | BPF_MAP_CAN_WRITE; +} + +static inline bool bpf_map_flags_access_ok(u32 access_flags) +{ + return (access_flags & (BPF_F_RDONLY_PROG | BPF_F_WRONLY_PROG)) != + (BPF_F_RDONLY_PROG | BPF_F_WRONLY_PROG); +} + struct bpf_event_entry { struct perf_event *event; struct file *perf_file; -- cgit v1.2.3 From 87df15de441bd4add7876ef584da8cabdd9a042a Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 9 Apr 2019 23:20:06 +0200 Subject: bpf: add syscall side map freeze support This patch adds a new BPF_MAP_FREEZE command which allows to "freeze" the map globally as read-only / immutable from syscall side. Map permission handling has been refactored into map_get_sys_perms() and drops FMODE_CAN_WRITE in case of locked map. Main use case is to allow for setting up .rodata sections from the BPF ELF which are loaded into the kernel, meaning BPF loader first allocates map, sets up map value by copying .rodata section into it and once complete, it calls BPF_MAP_FREEZE on the map fd to prevent further modifications. Right now BPF_MAP_FREEZE only takes map fd as argument while remaining bpf_attr members are required to be zero. I didn't add write-only locking here as counterpart since I don't have a concrete use-case for it on my side, and I think it makes probably more sense to wait once there is actually one. In that case bpf_attr can be extended as usual with a flag field and/or others where flag 0 means that we lock the map read-only hence this doesn't prevent to add further extensions to BPF_MAP_FREEZE upon need. A map creation flag like BPF_F_WRONCE was not considered for couple of reasons: i) in case of a generic implementation, a map can consist of more than just one element, thus there could be multiple map updates needed to set the map into a state where it can then be made immutable, ii) WRONCE indicates exact one-time write before it is then set immutable. A generic implementation would set a bit atomically on map update entry (if unset), indicating that every subsequent update from then onwards will need to bail out there. However, map updates can fail, so upon failure that flag would need to be unset again and the update attempt would need to be repeated for it to be eventually made immutable. While this can be made race-free, this approach feels less clean and in combination with reason i), it's not generic enough. A dedicated BPF_MAP_FREEZE command directly sets the flag and caller has the guarantee that map is immutable from syscall side upon successful return for any future syscall invocations that would alter the map state, which is also more intuitive from an API point of view. A command name such as BPF_MAP_LOCK has been avoided as it's too close with BPF map spin locks (which already has BPF_F_LOCK flag). BPF_MAP_FREEZE is so far only enabled for privileged users. Signed-off-by: Daniel Borkmann Acked-by: Martin KaFai Lau Signed-off-by: Alexei Starovoitov --- include/linux/bpf.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index be20804631b5..65f7094c40b4 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -87,7 +87,8 @@ struct bpf_map { struct btf *btf; u32 pages; bool unpriv_array; - /* 51 bytes hole */ + bool frozen; /* write-once */ + /* 48 bytes hole */ /* The 3rd and 4th cacheline with misc members to avoid false sharing * particularly with refcounting. -- cgit v1.2.3 From 2824ecb7010f6a20e9a4140512b798469ab066cc Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 9 Apr 2019 23:20:10 +0200 Subject: bpf: allow for key-less BTF in array map Given we'll be reusing BPF array maps for global data/bss/rodata sections, we need a way to associate BTF DataSec type as its map value type. In usual cases we have this ugly BPF_ANNOTATE_KV_PAIR() macro hack e.g. via 38d5d3b3d5db ("bpf: Introduce BPF_ANNOTATE_KV_PAIR") to get initial map to type association going. While more use cases for it are discouraged, this also won't work for global data since the use of array map is a BPF loader detail and therefore unknown at compilation time. For array maps with just a single entry we make an exception in terms of BTF in that key type is declared optional if value type is of DataSec type. The latter LLVM is guaranteed to emit and it also aligns with how we regard global data maps as just a plain buffer area reusing existing map facilities for allowing things like introspection with existing tools. Signed-off-by: Daniel Borkmann Acked-by: Martin KaFai Lau Signed-off-by: Alexei Starovoitov --- include/linux/btf.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/btf.h b/include/linux/btf.h index 455d31b55828..64cdf2a23d42 100644 --- a/include/linux/btf.h +++ b/include/linux/btf.h @@ -51,6 +51,7 @@ bool btf_member_is_reg_int(const struct btf *btf, const struct btf_type *s, const struct btf_member *m, u32 expected_offset, u32 expected_size); int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t); +bool btf_type_is_void(const struct btf_type *t); #ifdef CONFIG_BPF_SYSCALL const struct btf_type *btf_type_by_id(const struct btf *btf, u32 type_id); -- cgit v1.2.3 From b6d9ccb1125049941590ea895c38e1167badba5f Mon Sep 17 00:00:00 2001 From: Mark Bloch Date: Thu, 28 Mar 2019 15:27:31 +0200 Subject: net/mlx5: E-Switch, don't use hardcoded values for FDB prios When creating the FDB prios, use the enum values already defined and not the hardcoded values. Signed-off-by: Mark Bloch Reviewed-by: Maor Gottlieb Signed-off-by: Leon Romanovsky --- include/linux/mlx5/fs.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h index 9df51da04621..3eeb04154317 100644 --- a/include/linux/mlx5/fs.h +++ b/include/linux/mlx5/fs.h @@ -75,6 +75,11 @@ enum mlx5_flow_namespace_type { MLX5_FLOW_NAMESPACE_EGRESS, }; +enum { + FDB_FAST_PATH, + FDB_SLOW_PATH, +}; + struct mlx5_flow_table; struct mlx5_flow_group; struct mlx5_flow_namespace; -- cgit v1.2.3 From d9cb06759eca5a420072b937d2a2a670db474008 Mon Sep 17 00:00:00 2001 From: Mark Bloch Date: Thu, 28 Mar 2019 15:27:32 +0200 Subject: net/mlx5: E-Switch, add a new prio to be used by the RDMA side Create a new prio in the FDB, it will be used when inserting steering rules into the FDB from the RDMA side. We create a new PRIO so rules from the net side and rules from the RDMA side won't be inserted to the same PRIO, each side has it's own sandbox to play in. Signed-off-by: Mark Bloch Reviewed-by: Maor Gottlieb Signed-off-by: Leon Romanovsky --- include/linux/mlx5/fs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h index 3eeb04154317..fd91df3a4e09 100644 --- a/include/linux/mlx5/fs.h +++ b/include/linux/mlx5/fs.h @@ -76,6 +76,7 @@ enum mlx5_flow_namespace_type { }; enum { + FDB_BYPASS_PATH, FDB_FAST_PATH, FDB_SLOW_PATH, }; -- cgit v1.2.3 From 2f36bde0fc8f1ab79d54bd2caa7c1cf874fd2206 Mon Sep 17 00:00:00 2001 From: "Andrew-sh.Cheng" Date: Fri, 29 Mar 2019 14:46:10 +0800 Subject: OPP: Introduce dev_pm_opp_find_freq_ceil_by_volt() This patch introduces a new helper routine in the OPP core, which returns the OPP with the highest frequency which has voltage less than or equal to the target voltage passed to the helper. Signed-off-by: Andrew-sh.Cheng [ Viresh: Massaged the commit log and renamed the helper with some cleanups. ] Signed-off-by: Viresh Kumar --- include/linux/pm_opp.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 24c757a32a7b..b150fe97ce5a 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -102,6 +102,8 @@ struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, unsigned long *freq); +struct dev_pm_opp *dev_pm_opp_find_freq_ceil_by_volt(struct device *dev, + unsigned long u_volt); struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq); @@ -207,6 +209,12 @@ static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, return ERR_PTR(-ENOTSUPP); } +static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil_by_volt(struct device *dev, + unsigned long u_volt) +{ + return ERR_PTR(-ENOTSUPP); +} + static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq) { -- cgit v1.2.3 From 12a30a7fc142a123c61da9623bd824d95d36c12e Mon Sep 17 00:00:00 2001 From: Waiman Long Date: Thu, 4 Apr 2019 13:43:12 -0400 Subject: locking/rwsem: Move rwsem internal function declarations to rwsem-xadd.h We don't need to expose rwsem internal functions which are not supposed to be called directly from other kernel code. Signed-off-by: Waiman Long Acked-by: Peter Zijlstra Acked-by: Will Deacon Acked-by: Davidlohr Bueso Cc: Andrew Morton Cc: Arnd Bergmann Cc: Borislav Petkov Cc: Davidlohr Bueso Cc: Linus Torvalds Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Tim Chen Link: http://lkml.kernel.org/r/20190404174320.22416-4-longman@redhat.com Signed-off-by: Ingo Molnar --- include/linux/rwsem.h | 7 ------- 1 file changed, 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 0fc41062c649..b44e533235c7 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -46,13 +46,6 @@ struct rw_semaphore { */ #define RWSEM_OWNER_UNKNOWN ((struct task_struct *)-2L) -extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_down_read_failed_killable(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_down_write_failed_killable(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *); -extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem); - /* In all implementations count != 0 means locked */ static inline int rwsem_is_locked(struct rw_semaphore *sem) { -- cgit v1.2.3 From 364f784f048c984721986db90c95ca8350213c91 Mon Sep 17 00:00:00 2001 From: Waiman Long Date: Thu, 4 Apr 2019 13:43:20 -0400 Subject: locking/rwsem: Optimize rwsem structure for uncontended lock acquisition For an uncontended rwsem, count and owner are the only fields a task needs to touch when acquiring the rwsem. So they are put next to each other to increase the chance that they will share the same cacheline. On a ThunderX2 99xx (arm64) system with 32K L1 cache and 256K L2 cache, a rwsem locking microbenchmark with one locking thread was run to write-lock and write-unlock an array of rwsems separated 2 cachelines apart in a 1M byte memory block. The locking rates (kops/s) of the microbenchmark when the rwsems are at various "long" (8-byte) offsets from beginning of the cacheline before and after the patch were as follows: Cacheline Offset Pre-patch Post-patch ---------------- --------- ---------- 0 17,449 16,588 1 17,450 16,465 2 17,450 16,460 3 17,453 16,462 4 14,867 16,471 5 14,867 16,470 6 14,853 16,464 7 14,867 13,172 Before the patch, the count and owner are 4 "long"s apart. After the patch, they are only 1 "long" apart. The rwsem data have to be loaded from the L3 cache for each access. It can be seen that the locking rates are more consistent after the patch than before. Note that for this particular system, the performance drop happens whenever the count and owner are at an odd multiples of "long"s apart. No performance drop was observed when only a single rwsem was used (hot cache). So the drop is likely just an idiosyncrasy of the cache architecture of this chip than an inherent problem with the patch. Suggested-by: Linus Torvalds Signed-off-by: Waiman Long Acked-by: Peter Zijlstra Cc: Andrew Morton Cc: Arnd Bergmann Cc: Borislav Petkov Cc: Davidlohr Bueso Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Tim Chen Cc: Will Deacon Link: http://lkml.kernel.org/r/20190404174320.22416-12-longman@redhat.com Signed-off-by: Ingo Molnar --- include/linux/rwsem.h | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index b44e533235c7..2ea18a3def04 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -20,21 +20,30 @@ #include #endif -struct rw_semaphore; - -/* All arch specific implementations share the same struct */ +/* + * For an uncontended rwsem, count and owner are the only fields a task + * needs to touch when acquiring the rwsem. So they are put next to each + * other to increase the chance that they will share the same cacheline. + * + * In a contended rwsem, the owner is likely the most frequently accessed + * field in the structure as the optimistic waiter that holds the osq lock + * will spin on owner. For an embedded rwsem, other hot fields in the + * containing structure should be moved further away from the rwsem to + * reduce the chance that they will share the same cacheline causing + * cacheline bouncing problem. + */ struct rw_semaphore { atomic_long_t count; - struct list_head wait_list; - raw_spinlock_t wait_lock; #ifdef CONFIG_RWSEM_SPIN_ON_OWNER - struct optimistic_spin_queue osq; /* spinner MCS lock */ /* * Write owner. Used as a speculative check to see * if the owner is running on the cpu. */ struct task_struct *owner; + struct optimistic_spin_queue osq; /* spinner MCS lock */ #endif + raw_spinlock_t wait_lock; + struct list_head wait_list; #ifdef CONFIG_DEBUG_LOCK_ALLOC struct lockdep_map dep_map; #endif -- cgit v1.2.3 From 5c7e372caa35d303e414caeb64ee2243fd3cac3d Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Wed, 27 Mar 2019 16:39:38 +0100 Subject: security: don't use RCU accessors for cred->session_keyring sparse complains that a bunch of places in kernel/cred.c access cred->session_keyring without the RCU helpers required by the __rcu annotation. cred->session_keyring is written in the following places: - prepare_kernel_cred() [in a new cred struct] - keyctl_session_to_parent() [in a new cred struct] - prepare_creds [in a new cred struct, via memcpy] - install_session_keyring_to_cred() - from install_session_keyring() on new creds - from join_session_keyring() on new creds [twice] - from umh_keys_init() - from call_usermodehelper_exec_async() on new creds All of these writes are before the creds are committed; therefore, cred->session_keyring doesn't need RCU protection. Remove the __rcu annotation and fix up all existing users that use __rcu. Signed-off-by: Jann Horn Signed-off-by: James Morris --- include/linux/cred.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/cred.h b/include/linux/cred.h index ddd45bb74887..efb6edf32de7 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -138,7 +138,7 @@ struct cred { #ifdef CONFIG_KEYS unsigned char jit_keyring; /* default keyring to attach requested * keys to */ - struct key __rcu *session_keyring; /* keyring inherited over fork */ + struct key *session_keyring; /* keyring inherited over fork */ struct key *process_keyring; /* keyring private to this process */ struct key *thread_keyring; /* keyring private to this thread */ struct key *request_key_auth; /* assumed request_key authority */ -- cgit v1.2.3 From 0b9dc6c9f01c4a726558b82a3b6082a89d264eb5 Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Wed, 27 Mar 2019 16:55:08 +0100 Subject: keys: safe concurrent user->{session,uid}_keyring access The current code can perform concurrent updates and reads on user->session_keyring and user->uid_keyring. Add a comment to struct user_struct to document the nontrivial locking semantics, and use READ_ONCE() for unlocked readers and smp_store_release() for writers to prevent memory ordering issues. Fixes: 69664cf16af4 ("keys: don't generate user and user session keyrings unless they're accessed") Signed-off-by: Jann Horn Signed-off-by: James Morris --- include/linux/sched/user.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sched/user.h b/include/linux/sched/user.h index c7b5f86b91a1..468d2565a9fe 100644 --- a/include/linux/sched/user.h +++ b/include/linux/sched/user.h @@ -31,6 +31,13 @@ struct user_struct { atomic_long_t pipe_bufs; /* how many pages are allocated in pipe buffers */ #ifdef CONFIG_KEYS + /* + * These pointers can only change from NULL to a non-NULL value once. + * Writes are protected by key_user_keyring_mutex. + * Unlocked readers should use READ_ONCE() unless they know that + * install_user_keyrings() has been called successfully (which sets + * these members to non-NULL values, preventing further modifications). + */ struct key *uid_keyring; /* UID specific keyring */ struct key *session_keyring; /* UID's default session keyring */ #endif -- cgit v1.2.3 From ecb0abc1d8528015957fbd034be8bfe760363b3b Mon Sep 17 00:00:00 2001 From: Chris Packham Date: Fri, 22 Mar 2019 13:23:41 +1300 Subject: of: use correct function prototype for of_overlay_fdt_apply() When CONFIG_OF_OVERLAY is not enabled the fallback stub for of_overlay_fdt_apply() does not match the prototype for the case when CONFIG_OF_OVERLAY is enabled. Update the stub to use the correct function prototype. Fixes: 39a751a4cb7e ("of: change overlay apply input data from unflattened to FDT") Signed-off-by: Chris Packham Reviewed-by: Frank Rowand Signed-off-by: Rob Herring --- include/linux/of.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/of.h b/include/linux/of.h index e240992e5cb6..28797e1a9982 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -1449,7 +1449,8 @@ int of_overlay_notifier_unregister(struct notifier_block *nb); #else -static inline int of_overlay_fdt_apply(void *overlay_fdt, int *ovcs_id) +static inline int of_overlay_fdt_apply(void *overlay_fdt, u32 overlay_fdt_size, + int *ovcs_id) { return -ENOTSUPP; } -- cgit v1.2.3 From 14948e39445db674516ccabdf01090586ecfdc9b Mon Sep 17 00:00:00 2001 From: Kimberly Brown Date: Thu, 14 Mar 2019 16:05:15 -0400 Subject: Drivers: hv: vmbus: Fix race condition with new ring_buffer_info mutex Fix a race condition that can result in a ring buffer pointer being set to null while a "_show" function is reading the ring buffer's data. This problem was discussed here: https://lkml.org/lkml/2018/10/18/779 To fix the race condition, add a new mutex lock to the "hv_ring_buffer_info" struct. Add a new function, "hv_ringbuffer_pre_init()", where a channel's inbound and outbound ring_buffer_info mutex locks are initialized. Acquire/release the locks in the "hv_ringbuffer_cleanup()" function, which is where the ring buffer pointers are set to null. Acquire/release the locks in the four channel-level "_show" functions that access ring buffer data. Remove the "const" qualifier from the "vmbus_channel" parameter and the "rbi" variable of the channel-level "_show" functions so that the locks can be acquired/released in these functions. Acquire/release the locks in hv_ringbuffer_get_debuginfo(). Remove the "const" qualifier from the "hv_ring_buffer_info" parameter so that the locks can be acquired/released in this function. Signed-off-by: Kimberly Brown Reviewed-by: Michael Kelley Signed-off-by: Sasha Levin --- include/linux/hyperv.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 64698ec8f2ac..8b9a93c99c9b 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -141,6 +141,11 @@ struct hv_ring_buffer_info { u32 ring_datasize; /* < ring_size */ u32 priv_read_index; + /* + * The ring buffer mutex lock. This lock prevents the ring buffer from + * being freed while the ring buffer is being accessed. + */ + struct mutex ring_buffer_mutex; }; @@ -1206,7 +1211,7 @@ struct hv_ring_buffer_debug_info { }; -int hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info, +int hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info, struct hv_ring_buffer_debug_info *debug_info); /* Vmbus interface */ -- cgit v1.2.3 From 851826c7566e9bb4d03eb050634031ecc802affb Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Tue, 9 Apr 2019 04:59:55 +0000 Subject: firmware: imx: enable imx scu general irq function The System Controller Firmware (SCFW) controls RTC, thermal and WDOG etc., these resources' interrupt function are managed by SCU. When any IRQ pending, SCU will notify Linux via MU general interrupt channel #3, and Linux kernel needs to call SCU APIs to get IRQ status and notify each module to handle the interrupt. Since there is no data transmission for SCU IRQ notification, so doorbell mode is used for this MU channel, and SCU driver will use notifier mechanism to broadcast to every module which registers the SCU block notifier. Signed-off-by: Anson Huang Reviewed-by: Dong Aisheng Signed-off-by: Shawn Guo --- include/linux/firmware/imx/sci.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/firmware/imx/sci.h b/include/linux/firmware/imx/sci.h index ebc55098faee..17ba4e405129 100644 --- a/include/linux/firmware/imx/sci.h +++ b/include/linux/firmware/imx/sci.h @@ -15,4 +15,9 @@ #include #include + +int imx_scu_enable_general_irq_channel(struct device *dev); +int imx_scu_irq_register_notifier(struct notifier_block *nb); +int imx_scu_irq_unregister_notifier(struct notifier_block *nb); +int imx_scu_irq_group_enable(u8 group, u32 mask, u8 enable); #endif /* _SC_SCI_H */ -- cgit v1.2.3 From e6818d29ea1591b3e37d9cf635dc9dbca1a398ae Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 8 Apr 2019 12:46:53 -0700 Subject: gpio: gpio-omap: configure edge detection for level IRQs for idle wakeup The GPIO block can enter idle independently of the CPU power management calls via smart-idle. When the GPIO block enters idle, level detection stops working due to clocks being shut off, and an alternative form of edge detection is used. However, this needs the edge detection registers set to mark the appropriate edges. Arrange to configure the edge detection enables along with the level detection to ensure that any transition to active interrupt state that occurs while the block is idle is detected as a wake-up event. Since we enable the edge detection when configuring the IRQ, both omap2_gpio_enable_level_quirk() nor omap2_gpio_disable_level_quirk() become redundant, which also means OMAP_GPIO_QUIRK_IDLE_REMOVE_TRIGGER can be removed. This can be now done without regressions as patch "gpio: gpio-omap: fix level interrupt idling" allows level interrupts to idle on omap4 without a workaround. Cc: Aaro Koskinen Cc: Grygorii Strashko Cc: Keerthy Cc: Peter Ujfalusi Cc: Tero Kristo Signed-off-by: Russell King [tony@atomide.com: update description for the fix dependency] Signed-off-by: Tony Lindgren Signed-off-by: Linus Walleij --- include/linux/platform_data/gpio-omap.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/gpio-omap.h b/include/linux/platform_data/gpio-omap.h index 6d07eebb3f75..7c36370c062e 100644 --- a/include/linux/platform_data/gpio-omap.h +++ b/include/linux/platform_data/gpio-omap.h @@ -200,8 +200,6 @@ struct omap_gpio_platform_data { bool is_mpuio; /* whether the bank is of type MPUIO */ u32 non_wakeup_gpios; - u32 quirks; /* Version specific quirks mask */ - struct omap_gpio_reg_offs *regs; /* Return context loss count due to PM states changing */ -- cgit v1.2.3 From 14bd9a607f9082e7b5690c27e69072f2aeae0de4 Mon Sep 17 00:00:00 2001 From: Jinyu Qi Date: Wed, 3 Apr 2019 16:35:21 +0800 Subject: iommu/iova: Separate atomic variables to improve performance In struct iova_domain, there are three atomic variables, the former two are about TLB flush counters which use atomic_add operation, anoter is used to flush timer that use cmpxhg operation. These variables are in the same cache line, so it will cause some performance loss under the condition that many cores call queue_iova function, Let's isolate the two type atomic variables to different cache line to reduce cache line conflict. Cc: Joerg Roedel Signed-off-by: Jinyu Qi Signed-off-by: Joerg Roedel --- include/linux/iova.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iova.h b/include/linux/iova.h index 0b93bf96693e..28a5128405f8 100644 --- a/include/linux/iova.h +++ b/include/linux/iova.h @@ -76,6 +76,14 @@ struct iova_domain { unsigned long start_pfn; /* Lower limit for this domain */ unsigned long dma_32bit_pfn; unsigned long max32_alloc_size; /* Size of last failed allocation */ + struct iova_fq __percpu *fq; /* Flush Queue */ + + atomic64_t fq_flush_start_cnt; /* Number of TLB flushes that + have been started */ + + atomic64_t fq_flush_finish_cnt; /* Number of TLB flushes that + have been finished */ + struct iova anchor; /* rbtree lookup anchor */ struct iova_rcache rcaches[IOVA_RANGE_CACHE_MAX_SIZE]; /* IOVA range caches */ @@ -85,14 +93,6 @@ struct iova_domain { iova_entry_dtor entry_dtor; /* IOMMU driver specific destructor for iova entry */ - struct iova_fq __percpu *fq; /* Flush Queue */ - - atomic64_t fq_flush_start_cnt; /* Number of TLB flushes that - have been started */ - - atomic64_t fq_flush_finish_cnt; /* Number of TLB flushes that - have been finished */ - struct timer_list fq_timer; /* Timer to regularily empty the flush-queues */ atomic_t fq_timer_on; /* 1 when timer is active, 0 -- cgit v1.2.3 From a3a195929d40b38833ffd0f82b2db2cc898641eb Mon Sep 17 00:00:00 2001 From: Lu Baolu Date: Mon, 25 Mar 2019 09:30:28 +0800 Subject: iommu: Add APIs for multiple domains per device Sharing a physical PCI device in a finer-granularity way is becoming a consensus in the industry. IOMMU vendors are also engaging efforts to support such sharing as well as possible. Among the efforts, the capability of support finer-granularity DMA isolation is a common requirement due to the security consideration. With finer-granularity DMA isolation, subsets of a PCI function can be isolated from each others by the IOMMU. As a result, there is a request in software to attach multiple domains to a physical PCI device. One example of such use model is the Intel Scalable IOV [1] [2]. The Intel vt-d 3.0 spec [3] introduces the scalable mode which enables PASID granularity DMA isolation. This adds the APIs to support multiple domains per device. In order to ease the discussions, we call it 'a domain in auxiliary mode' or simply 'auxiliary domain' when multiple domains are attached to a physical device. The APIs include: * iommu_dev_has_feature(dev, IOMMU_DEV_FEAT_AUX) - Detect both IOMMU and PCI endpoint devices supporting the feature (aux-domain here) without the host driver dependency. * iommu_dev_feature_enabled(dev, IOMMU_DEV_FEAT_AUX) - Check the enabling status of the feature (aux-domain here). The aux-domain interfaces are available only if this returns true. * iommu_dev_enable/disable_feature(dev, IOMMU_DEV_FEAT_AUX) - Enable/disable device specific aux-domain feature. * iommu_aux_attach_device(domain, dev) - Attaches @domain to @dev in the auxiliary mode. Multiple domains could be attached to a single device in the auxiliary mode with each domain representing an isolated address space for an assignable subset of the device. * iommu_aux_detach_device(domain, dev) - Detach @domain which has been attached to @dev in the auxiliary mode. * iommu_aux_get_pasid(domain, dev) - Return ID used for finer-granularity DMA translation. For the Intel Scalable IOV usage model, this will be a PASID. The device which supports Scalable IOV needs to write this ID to the device register so that DMA requests could be tagged with a right PASID prefix. This has been updated with the latest proposal from Joerg posted here [5]. Many people involved in discussions of this design. Kevin Tian Liu Yi L Ashok Raj Sanjay Kumar Jacob Pan Alex Williamson Jean-Philippe Brucker Joerg Roedel and some discussions can be found here [4] [5]. [1] https://software.intel.com/en-us/download/intel-scalable-io-virtualization-technical-specification [2] https://schd.ws/hosted_files/lc32018/00/LC3-SIOV-final.pdf [3] https://software.intel.com/en-us/download/intel-virtualization-technology-for-directed-io-architecture-specification [4] https://lkml.org/lkml/2018/7/26/4 [5] https://www.spinics.net/lists/iommu/msg31874.html Cc: Ashok Raj Cc: Jacob Pan Cc: Kevin Tian Cc: Liu Yi L Suggested-by: Kevin Tian Suggested-by: Jean-Philippe Brucker Suggested-by: Joerg Roedel Signed-off-by: Lu Baolu Reviewed-by: Jean-Philippe Brucker Signed-off-by: Joerg Roedel --- include/linux/iommu.h | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) (limited to 'include/linux') diff --git a/include/linux/iommu.h b/include/linux/iommu.h index ffbbc7e39cee..8239ece9fdfc 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -156,6 +156,11 @@ struct iommu_resv_region { enum iommu_resv_type type; }; +/* Per device IOMMU features */ +enum iommu_dev_features { + IOMMU_DEV_FEAT_AUX, /* Aux-domain feature */ +}; + #ifdef CONFIG_IOMMU_API /** @@ -186,6 +191,11 @@ struct iommu_resv_region { * @of_xlate: add OF master IDs to iommu grouping * @is_attach_deferred: Check if domain attach should be deferred from iommu * driver init to device driver init (default no) + * @dev_has/enable/disable_feat: per device entries to check/enable/disable + * iommu specific features. + * @dev_feat_enabled: check enabled feature + * @aux_attach/detach_dev: aux-domain specific attach/detach entries. + * @aux_get_pasid: get the pasid given an aux-domain * @pgsize_bitmap: bitmap of all possible supported page sizes */ struct iommu_ops { @@ -230,6 +240,17 @@ struct iommu_ops { int (*of_xlate)(struct device *dev, struct of_phandle_args *args); bool (*is_attach_deferred)(struct iommu_domain *domain, struct device *dev); + /* Per device IOMMU features */ + bool (*dev_has_feat)(struct device *dev, enum iommu_dev_features f); + bool (*dev_feat_enabled)(struct device *dev, enum iommu_dev_features f); + int (*dev_enable_feat)(struct device *dev, enum iommu_dev_features f); + int (*dev_disable_feat)(struct device *dev, enum iommu_dev_features f); + + /* Aux-domain specific attach/detach entries */ + int (*aux_attach_dev)(struct iommu_domain *domain, struct device *dev); + void (*aux_detach_dev)(struct iommu_domain *domain, struct device *dev); + int (*aux_get_pasid)(struct iommu_domain *domain, struct device *dev); + unsigned long pgsize_bitmap; }; @@ -416,6 +437,14 @@ static inline void dev_iommu_fwspec_set(struct device *dev, int iommu_probe_device(struct device *dev); void iommu_release_device(struct device *dev); +bool iommu_dev_has_feature(struct device *dev, enum iommu_dev_features f); +int iommu_dev_enable_feature(struct device *dev, enum iommu_dev_features f); +int iommu_dev_disable_feature(struct device *dev, enum iommu_dev_features f); +bool iommu_dev_feature_enabled(struct device *dev, enum iommu_dev_features f); +int iommu_aux_attach_device(struct iommu_domain *domain, struct device *dev); +void iommu_aux_detach_device(struct iommu_domain *domain, struct device *dev); +int iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev); + #else /* CONFIG_IOMMU_API */ struct iommu_ops {}; @@ -700,6 +729,47 @@ const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode) return NULL; } +static inline bool +iommu_dev_has_feature(struct device *dev, enum iommu_dev_features feat) +{ + return false; +} + +static inline bool +iommu_dev_feature_enabled(struct device *dev, enum iommu_dev_features feat) +{ + return false; +} + +static inline int +iommu_dev_enable_feature(struct device *dev, enum iommu_dev_features feat) +{ + return -ENODEV; +} + +static inline int +iommu_dev_disable_feature(struct device *dev, enum iommu_dev_features feat) +{ + return -ENODEV; +} + +static inline int +iommu_aux_attach_device(struct iommu_domain *domain, struct device *dev) +{ + return -ENODEV; +} + +static inline void +iommu_aux_detach_device(struct iommu_domain *domain, struct device *dev) +{ +} + +static inline int +iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev) +{ + return -ENODEV; +} + #endif /* CONFIG_IOMMU_API */ #ifdef CONFIG_IOMMU_DEBUGFS -- cgit v1.2.3 From 26b25a2b98e45aeb40eedcedc586ad5034cbd984 Mon Sep 17 00:00:00 2001 From: Jean-Philippe Brucker Date: Wed, 10 Apr 2019 16:15:16 +0100 Subject: iommu: Bind process address spaces to devices Add bind() and unbind() operations to the IOMMU API. iommu_sva_bind_device() binds a device to an mm, and returns a handle to the bond, which is released by calling iommu_sva_unbind_device(). Each mm bound to devices gets a PASID (by convention, a 20-bit system-wide ID representing the address space), which can be retrieved with iommu_sva_get_pasid(). When programming DMA addresses, device drivers include this PASID in a device-specific manner, to let the device access the given address space. Since the process memory may be paged out, device and IOMMU must support I/O page faults (e.g. PCI PRI). Using iommu_sva_set_ops(), device drivers provide an mm_exit() callback that is called by the IOMMU driver if the process exits before the device driver called unbind(). In mm_exit(), device driver should disable DMA from the given context, so that the core IOMMU can reallocate the PASID. Whether the process exited or nor, the device driver should always release the handle with unbind(). To use these functions, device driver must first enable the IOMMU_DEV_FEAT_SVA device feature with iommu_dev_enable_feature(). Signed-off-by: Jean-Philippe Brucker Signed-off-by: Joerg Roedel --- include/linux/iommu.h | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) (limited to 'include/linux') diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 8239ece9fdfc..480921dfbadf 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -48,6 +48,7 @@ struct bus_type; struct device; struct iommu_domain; struct notifier_block; +struct iommu_sva; /* iommu fault flags */ #define IOMMU_FAULT_READ 0x0 @@ -55,6 +56,8 @@ struct notifier_block; typedef int (*iommu_fault_handler_t)(struct iommu_domain *, struct device *, unsigned long, int, void *); +typedef int (*iommu_mm_exit_handler_t)(struct device *dev, struct iommu_sva *, + void *); struct iommu_domain_geometry { dma_addr_t aperture_start; /* First address that can be mapped */ @@ -159,6 +162,28 @@ struct iommu_resv_region { /* Per device IOMMU features */ enum iommu_dev_features { IOMMU_DEV_FEAT_AUX, /* Aux-domain feature */ + IOMMU_DEV_FEAT_SVA, /* Shared Virtual Addresses */ +}; + +#define IOMMU_PASID_INVALID (-1U) + +/** + * struct iommu_sva_ops - device driver callbacks for an SVA context + * + * @mm_exit: called when the mm is about to be torn down by exit_mmap. After + * @mm_exit returns, the device must not issue any more transaction + * with the PASID given as argument. + * + * The @mm_exit handler is allowed to sleep. Be careful about the + * locks taken in @mm_exit, because they might lead to deadlocks if + * they are also held when dropping references to the mm. Consider the + * following call chain: + * mutex_lock(A); mmput(mm) -> exit_mm() -> @mm_exit() -> mutex_lock(A) + * Using mmput_async() prevents this scenario. + * + */ +struct iommu_sva_ops { + iommu_mm_exit_handler_t mm_exit; }; #ifdef CONFIG_IOMMU_API @@ -196,6 +221,9 @@ enum iommu_dev_features { * @dev_feat_enabled: check enabled feature * @aux_attach/detach_dev: aux-domain specific attach/detach entries. * @aux_get_pasid: get the pasid given an aux-domain + * @sva_bind: Bind process address space to device + * @sva_unbind: Unbind process address space from device + * @sva_get_pasid: Get PASID associated to a SVA handle * @pgsize_bitmap: bitmap of all possible supported page sizes */ struct iommu_ops { @@ -251,6 +279,11 @@ struct iommu_ops { void (*aux_detach_dev)(struct iommu_domain *domain, struct device *dev); int (*aux_get_pasid)(struct iommu_domain *domain, struct device *dev); + struct iommu_sva *(*sva_bind)(struct device *dev, struct mm_struct *mm, + void *drvdata); + void (*sva_unbind)(struct iommu_sva *handle); + int (*sva_get_pasid)(struct iommu_sva *handle); + unsigned long pgsize_bitmap; }; @@ -417,6 +450,14 @@ struct iommu_fwspec { u32 ids[1]; }; +/** + * struct iommu_sva - handle to a device-mm bond + */ +struct iommu_sva { + struct device *dev; + const struct iommu_sva_ops *ops; +}; + int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, const struct iommu_ops *ops); void iommu_fwspec_free(struct device *dev); @@ -445,6 +486,14 @@ int iommu_aux_attach_device(struct iommu_domain *domain, struct device *dev); void iommu_aux_detach_device(struct iommu_domain *domain, struct device *dev); int iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev); +struct iommu_sva *iommu_sva_bind_device(struct device *dev, + struct mm_struct *mm, + void *drvdata); +void iommu_sva_unbind_device(struct iommu_sva *handle); +int iommu_sva_set_ops(struct iommu_sva *handle, + const struct iommu_sva_ops *ops); +int iommu_sva_get_pasid(struct iommu_sva *handle); + #else /* CONFIG_IOMMU_API */ struct iommu_ops {}; @@ -770,6 +819,27 @@ iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev) return -ENODEV; } +static inline struct iommu_sva * +iommu_sva_bind_device(struct device *dev, struct mm_struct *mm, void *drvdata) +{ + return NULL; +} + +static inline void iommu_sva_unbind_device(struct iommu_sva *handle) +{ +} + +static inline int iommu_sva_set_ops(struct iommu_sva *handle, + const struct iommu_sva_ops *ops) +{ + return -EINVAL; +} + +static inline int iommu_sva_get_pasid(struct iommu_sva *handle) +{ + return IOMMU_PASID_INVALID; +} + #endif /* CONFIG_IOMMU_API */ #ifdef CONFIG_IOMMU_DEBUGFS -- cgit v1.2.3 From d7cbc0f3220fabbdfa9b3aa79275baa5b16fef5d Mon Sep 17 00:00:00 2001 From: Lu Baolu Date: Mon, 25 Mar 2019 09:30:29 +0800 Subject: iommu/vt-d: Make intel_iommu_enable_pasid() more generic This moves intel_iommu_enable_pasid() out of the scope of CONFIG_INTEL_IOMMU_SVM with more and more features requiring pasid function. Cc: Ashok Raj Cc: Jacob Pan Cc: Kevin Tian Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel --- include/linux/intel-iommu.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h index fa364de9db18..b7d1e2fbb9ca 100644 --- a/include/linux/intel-iommu.h +++ b/include/linux/intel-iommu.h @@ -650,6 +650,7 @@ struct intel_iommu *domain_get_iommu(struct dmar_domain *domain); int for_each_device_domain(int (*fn)(struct device_domain_info *info, void *data), void *data); void iommu_flush_write_buffer(struct intel_iommu *iommu); +int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct device *dev); #ifdef CONFIG_INTEL_IOMMU_SVM int intel_svm_init(struct intel_iommu *iommu); @@ -679,7 +680,6 @@ struct intel_svm { struct list_head list; }; -extern int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct intel_svm_dev *sdev); extern struct intel_iommu *intel_svm_device_to_iommu(struct device *dev); #endif -- cgit v1.2.3 From 95587a75de179da35aea03735843be8278cf1857 Mon Sep 17 00:00:00 2001 From: Lu Baolu Date: Mon, 25 Mar 2019 09:30:30 +0800 Subject: iommu/vt-d: Add per-device IOMMU feature ops entries This adds the iommu ops entries for aux-domain per-device feature query and enable/disable. Cc: Ashok Raj Cc: Jacob Pan Cc: Kevin Tian Signed-off-by: Sanjay Kumar Signed-off-by: Liu Yi L Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel --- include/linux/intel-iommu.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h index b7d1e2fbb9ca..4f0745479b6d 100644 --- a/include/linux/intel-iommu.h +++ b/include/linux/intel-iommu.h @@ -568,6 +568,7 @@ struct device_domain_info { u8 pri_enabled:1; u8 ats_supported:1; u8 ats_enabled:1; + u8 auxd_enabled:1; /* Multiple domains per device */ u8 ats_qdep; struct device *dev; /* it's NULL for PCIe-to-PCI bridge */ struct intel_iommu *iommu; /* IOMMU used by this device */ -- cgit v1.2.3 From 67b8e02b5e76159a4f94f85bee370af1d9f442f9 Mon Sep 17 00:00:00 2001 From: Lu Baolu Date: Mon, 25 Mar 2019 09:30:32 +0800 Subject: iommu/vt-d: Aux-domain specific domain attach/detach When multiple domains per device has been enabled by the device driver, the device will tag the default PASID for the domain to all DMA traffics out of the subset of this device; and the IOMMU should translate the DMA requests in PASID granularity. This adds the intel_iommu_aux_attach/detach_device() ops to support managing PASID granular translation structures when the device driver has enabled multiple domains per device. Cc: Ashok Raj Cc: Jacob Pan Cc: Kevin Tian Signed-off-by: Sanjay Kumar Signed-off-by: Liu Yi L Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel --- include/linux/intel-iommu.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h index 4f0745479b6d..6925a18a5ca3 100644 --- a/include/linux/intel-iommu.h +++ b/include/linux/intel-iommu.h @@ -489,9 +489,11 @@ struct dmar_domain { /* Domain ids per IOMMU. Use u16 since * domain ids are 16 bit wide according * to VT-d spec, section 9.3 */ + unsigned int auxd_refcnt; /* Refcount of auxiliary attaching */ bool has_iotlb_device; struct list_head devices; /* all devices' list */ + struct list_head auxd; /* link to device's auxiliary list */ struct iova_domain iovad; /* iova's that belong to this domain */ struct dma_pte *pgd; /* virtual address */ @@ -510,6 +512,11 @@ struct dmar_domain { 2 == 1GiB, 3 == 512GiB, 4 == 1TiB */ u64 max_addr; /* maximum mapped address */ + int default_pasid; /* + * The default pasid used for non-SVM + * traffic on mediated devices. + */ + struct iommu_domain domain; /* generic domain data structure for iommu core */ }; @@ -559,6 +566,9 @@ struct device_domain_info { struct list_head link; /* link to domain siblings */ struct list_head global; /* link to global list */ struct list_head table; /* link to pasid table */ + struct list_head auxiliary_domains; /* auxiliary domains + * attached to this device + */ u8 bus; /* PCI bus number */ u8 devfn; /* PCI devfn number */ u16 pfsid; /* SRIOV physical function source ID */ -- cgit v1.2.3 From a6fdbd551573d9e303823c93075c0f0edff8d98e Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 11 Apr 2019 19:25:12 +0200 Subject: video: amba-clcd: Decomission Versatile and Nomadik These board families are now handled in the DRM subsystem where we can have reusable panel drivers and some other stuff. The PL111 there is now the driver used in the defconfig for Versatile and Nomadik so no need to keep this code around. There are a few minor machines in arch/arm/ such as mach-netx still using the old driver, so we need to keep the core fbdev driver around for some time. Signed-off-by: Linus Walleij Cc: Russell King Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/amba/clcd.h | 31 ------------------------------- 1 file changed, 31 deletions(-) (limited to 'include/linux') diff --git a/include/linux/amba/clcd.h b/include/linux/amba/clcd.h index d0c3be77c18e..b6e0cbeaf533 100644 --- a/include/linux/amba/clcd.h +++ b/include/linux/amba/clcd.h @@ -124,38 +124,11 @@ struct clcd_board { struct amba_device; struct clk; -/** - * struct clcd_vendor_data - holds hardware (IP-block) vendor-specific - * variant information - * - * @clock_timregs: the CLCD needs to be clocked when accessing the - * timer registers, or the hardware will hang. - * @packed_24_bit_pixels: this variant supports 24bit packed pixel data, - * so that RGB accesses 3 bytes at a time, not just on even 32bit - * boundaries, packing the pixel data in memory. ST Microelectronics - * have this. - * @st_bitmux_control: ST Microelectronics have implemented output - * bit line multiplexing into the CLCD control register. This indicates - * that we need to use this. - * @init_board: custom board init function for this variant - * @init_panel: custom panel init function for this variant - */ -struct clcd_vendor_data { - bool clock_timregs; - bool packed_24_bit_pixels; - bool st_bitmux_control; - int (*init_board)(struct amba_device *adev, - struct clcd_board *board); - int (*init_panel)(struct clcd_fb *fb, - struct device_node *panel); -}; - /* this data structure describes each frame buffer device we find */ struct clcd_fb { struct fb_info fb; struct amba_device *dev; struct clk *clk; - struct clcd_vendor_data *vendor; struct clcd_panel *panel; struct clcd_board *board; void *board_data; @@ -257,10 +230,6 @@ static inline void clcdfb_decode(struct clcd_fb *fb, struct clcd_regs *regs) else val |= CNTL_LCDBPP16_444; break; - case 24: - /* Modified variant supporting 24 bit packed pixels */ - val |= CNTL_ST_LCDBPP24_PACKED; - break; case 32: val |= CNTL_LCDBPP24; break; -- cgit v1.2.3 From c695865c5c9803f14eef2c99d8a49d9ad60a3383 Mon Sep 17 00:00:00 2001 From: Stanislav Fomichev Date: Thu, 11 Apr 2019 09:12:02 -0700 Subject: bpf: fix missing bpf_check_uarg_tail_zero in BPF_PROG_TEST_RUN MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit b0b9395d865e ("bpf: support input __sk_buff context in BPF_PROG_TEST_RUN") started using bpf_check_uarg_tail_zero in BPF_PROG_TEST_RUN. However, bpf_check_uarg_tail_zero is not defined for !CONFIG_BPF_SYSCALL: net/bpf/test_run.c: In function ‘bpf_ctx_init’: net/bpf/test_run.c:142:9: error: implicit declaration of function ‘bpf_check_uarg_tail_zero’ [-Werror=implicit-function-declaration] err = bpf_check_uarg_tail_zero(data_in, max_size, size); ^~~~~~~~~~~~~~~~~~~~~~~~ Let's not build net/bpf/test_run.c when CONFIG_BPF_SYSCALL is not set. Reported-by: kbuild test robot Fixes: b0b9395d865e ("bpf: support input __sk_buff context in BPF_PROG_TEST_RUN") Signed-off-by: Stanislav Fomichev Signed-off-by: Daniel Borkmann --- include/linux/bpf.h | 36 ++++++++++++++++++++++++++++-------- 1 file changed, 28 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 65f7094c40b4..e4d4c1771ab0 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -483,14 +483,6 @@ typedef u32 (*bpf_convert_ctx_access_t)(enum bpf_access_type type, u64 bpf_event_output(struct bpf_map *map, u64 flags, void *meta, u64 meta_size, void *ctx, u64 ctx_size, bpf_ctx_copy_t ctx_copy); -int bpf_prog_test_run_xdp(struct bpf_prog *prog, const union bpf_attr *kattr, - union bpf_attr __user *uattr); -int bpf_prog_test_run_skb(struct bpf_prog *prog, const union bpf_attr *kattr, - union bpf_attr __user *uattr); -int bpf_prog_test_run_flow_dissector(struct bpf_prog *prog, - const union bpf_attr *kattr, - union bpf_attr __user *uattr); - /* an array of programs to be executed under rcu_lock. * * Typical usage: @@ -681,6 +673,13 @@ static inline int bpf_map_attr_numa_node(const union bpf_attr *attr) struct bpf_prog *bpf_prog_get_type_path(const char *name, enum bpf_prog_type type); int array_map_alloc_check(union bpf_attr *attr); +int bpf_prog_test_run_xdp(struct bpf_prog *prog, const union bpf_attr *kattr, + union bpf_attr __user *uattr); +int bpf_prog_test_run_skb(struct bpf_prog *prog, const union bpf_attr *kattr, + union bpf_attr __user *uattr); +int bpf_prog_test_run_flow_dissector(struct bpf_prog *prog, + const union bpf_attr *kattr, + union bpf_attr __user *uattr); #else /* !CONFIG_BPF_SYSCALL */ static inline struct bpf_prog *bpf_prog_get(u32 ufd) { @@ -792,6 +791,27 @@ static inline struct bpf_prog *bpf_prog_get_type_path(const char *name, { return ERR_PTR(-EOPNOTSUPP); } + +static inline int bpf_prog_test_run_xdp(struct bpf_prog *prog, + const union bpf_attr *kattr, + union bpf_attr __user *uattr) +{ + return -ENOTSUPP; +} + +static inline int bpf_prog_test_run_skb(struct bpf_prog *prog, + const union bpf_attr *kattr, + union bpf_attr __user *uattr) +{ + return -ENOTSUPP; +} + +static inline int bpf_prog_test_run_flow_dissector(struct bpf_prog *prog, + const union bpf_attr *kattr, + union bpf_attr __user *uattr) +{ + return -ENOTSUPP; +} #endif /* CONFIG_BPF_SYSCALL */ static inline struct bpf_prog *bpf_prog_get_type(u32 ufd, -- cgit v1.2.3 From e94999688e3aa3c0a8ad5a60352cdc3ca3030434 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Thu, 11 Apr 2019 20:17:33 +0200 Subject: PM / Domains: Add genpd governor for CPUs After some preceding changes, PM domains managed by genpd may contain CPU devices, so idle state residency values should be taken into account during the state selection process. [The residency value is the minimum amount of time to be spent by a CPU (or a group of CPUs) in an idle state in order to save more energy than could be saved by picking up a shallower idle state.] For this purpose, add a new genpd governor, pm_domain_cpu_gov, to be used for selecting idle states of PM domains with CPU devices attached either directly or through subdomains. The new governor computes the minimum expected idle duration for all online CPUs attached to a PM domain and its subdomains. Next, it finds the deepest idle state whose target residency is within the expected idle duration and selects it as the target idle state of the domain. It should be noted that the minimum expected idle duration computation is based on the closest timer event information stored in the per-CPU variables cpuidle_devices for all of the CPUs in the domain. That needs to be revisited in future, as obviously there are other reasons why a CPU may be woken up from idle. Co-developed-by: Lina Iyer Acked-by: Daniel Lezcano Signed-off-by: Ulf Hansson [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki --- include/linux/pm_domain.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index a6e251fe9deb..bc82e74560ee 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -118,6 +118,7 @@ struct generic_pm_domain { s64 max_off_time_ns; /* Maximum allowed "suspended" time. */ bool max_off_time_changed; bool cached_power_down_ok; + bool cached_power_down_state_idx; int (*attach_dev)(struct generic_pm_domain *domain, struct device *dev); void (*detach_dev)(struct generic_pm_domain *domain, @@ -202,6 +203,9 @@ int dev_pm_genpd_set_performance_state(struct device *dev, unsigned int state); extern struct dev_power_governor simple_qos_governor; extern struct dev_power_governor pm_domain_always_on_gov; +#ifdef CONFIG_CPU_IDLE +extern struct dev_power_governor pm_domain_cpu_gov; +#endif #else static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev) -- cgit v1.2.3 From 223fd0adfa8af36d5d9b5d38016e579ee052f367 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Thu, 11 Apr 2019 16:36:42 +0200 Subject: bridge: broute: make broute a real ebtables table This makes broute a normal ebtables table, hooking at PREROUTING. The broute hook is removed. It uses skb->cb to signal to bridge rx handler that the skb should be routed instead of being bridged. This change is backwards compatible with ebtables as no userspace visible parts are changed. This means we can also remove the !ops test in ebt_register_table, it was only there for broute table sake. Signed-off-by: Florian Westphal Acked-by: David S. Miller Acked-by: Nikolay Aleksandrov Signed-off-by: Pablo Neira Ayuso --- include/linux/if_bridge.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h index 627b788ba0ff..ef0819ced0fc 100644 --- a/include/linux/if_bridge.h +++ b/include/linux/if_bridge.h @@ -56,9 +56,6 @@ struct br_ip_list { extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *)); -typedef int br_should_route_hook_t(struct sk_buff *skb); -extern br_should_route_hook_t __rcu *br_should_route_hook; - #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING) int br_multicast_list_adjacent(struct net_device *dev, struct list_head *br_ip_list); -- cgit v1.2.3 From 8ac13175cbe985e78bd41f9637b613b59df36936 Mon Sep 17 00:00:00 2001 From: Lu Baolu Date: Fri, 12 Apr 2019 12:13:24 +0800 Subject: vfio/mdev: Add iommu related member in mdev_device A parent device might create different types of mediated devices. For example, a mediated device could be created by the parent device with full isolation and protection provided by the IOMMU. One usage case could be found on Intel platforms where a mediated device is an assignable subset of a PCI, the DMA requests on behalf of it are all tagged with a PASID. Since IOMMU supports PASID-granular translations (scalable mode in VT-d 3.0), this mediated device could be individually protected and isolated by an IOMMU. This patch adds a new member in the struct mdev_device to indicate that the mediated device represented by mdev could be isolated and protected by attaching a domain to a device represented by mdev->iommu_device. It also adds a helper to add or set the iommu device. * mdev_device->iommu_device - This, if set, indicates that the mediated device could be fully isolated and protected by IOMMU via attaching an iommu domain to this device. If empty, it indicates using vendor defined isolation, hence bypass IOMMU. * mdev_set/get_iommu_device(dev, iommu_device) - Set or get the iommu device which represents this mdev in IOMMU's device scope. Drivers don't need to set the iommu device if it uses vendor defined isolation. Cc: Ashok Raj Cc: Jacob Pan Cc: Kevin Tian Cc: Liu Yi L Suggested-by: Kevin Tian Suggested-by: Alex Williamson Signed-off-by: Lu Baolu Reviewed-by: Jean-Philippe Brucker Reviewed-by: Kirti Wankhede Acked-by: Alex Williamson Signed-off-by: Joerg Roedel --- include/linux/mdev.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mdev.h b/include/linux/mdev.h index d7aee90e5da5..df2ea39f47ee 100644 --- a/include/linux/mdev.h +++ b/include/linux/mdev.h @@ -15,6 +15,20 @@ struct mdev_device; +/* + * Called by the parent device driver to set the device which represents + * this mdev in iommu protection scope. By default, the iommu device is + * NULL, that indicates using vendor defined isolation. + * + * @dev: the mediated device that iommu will isolate. + * @iommu_device: a pci device which represents the iommu for @dev. + * + * Return 0 for success, otherwise negative error value. + */ +int mdev_set_iommu_device(struct device *dev, struct device *iommu_device); + +struct device *mdev_get_iommu_device(struct device *dev); + /** * struct mdev_parent_ops - Structure to be registered for each parent device to * register the device to mdev module. -- cgit v1.2.3 From e0478542cfd4d993e38d5f92a3f3ecd238805e96 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Wed, 10 Apr 2019 22:27:25 +0200 Subject: overflow.h: Add comment documenting __ab_c_size() __ab_c_size() is a somewhat opaque name. Document its purpose, and while at it, rename the parameters to actually match the abc naming. [ bp: glued a complete patch from chunks on LKML. ] Reported-by: Borislav Petkov Signed-off-by: Rasmus Villemoes Signed-off-by: Borislav Petkov Acked-by: Kees Cook Cc: Matthew Wilcox Link: https://lkml.kernel.org/r/20190405045711.30339-1-bp@alien8.de --- include/linux/overflow.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/overflow.h b/include/linux/overflow.h index 40b48e2133cb..6534a727cadb 100644 --- a/include/linux/overflow.h +++ b/include/linux/overflow.h @@ -278,11 +278,15 @@ static inline __must_check size_t array3_size(size_t a, size_t b, size_t c) return bytes; } -static inline __must_check size_t __ab_c_size(size_t n, size_t size, size_t c) +/* + * Compute a*b+c, returning SIZE_MAX on overflow. Internal helper for + * struct_size() below. + */ +static inline __must_check size_t __ab_c_size(size_t a, size_t b, size_t c) { size_t bytes; - if (check_mul_overflow(n, size, &bytes)) + if (check_mul_overflow(a, b, &bytes)) return SIZE_MAX; if (check_add_overflow(bytes, c, &bytes)) return SIZE_MAX; -- cgit v1.2.3 From 7321ecbfc7cf85211460a1dc6bb0ccfc3dcf9df0 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 11 Apr 2019 08:23:30 +0200 Subject: block: change how we get page references in bio_iov_iter_get_pages Instead of needing a special macro to iterate over all pages in a bvec just do a second passs over the whole bio. This also matches what we do on the release side. The release side helper is moved up to where we need the get helper to clearly express the symmetry. Reviewed-by: Ming Lei Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/bvec.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bvec.h b/include/linux/bvec.h index f6275c4da13a..307bbda62b7b 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -189,9 +189,4 @@ static inline void mp_bvec_last_segment(const struct bio_vec *bvec, } } -#define mp_bvec_for_each_page(pg, bv, i) \ - for (i = (bv)->bv_offset / PAGE_SIZE; \ - (i <= (((bv)->bv_offset + (bv)->bv_len - 1) / PAGE_SIZE)) && \ - (pg = bvec_nth_page((bv)->bv_page, i)); i += 1) - #endif /* __LINUX_BVEC_ITER_H */ -- cgit v1.2.3 From 52d52d1c98a90cfe860b83498e4b6074aad95c15 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 11 Apr 2019 08:23:31 +0200 Subject: block: only allow contiguous page structs in a bio_vec We currently have to call nth_page when iterating over pages inside a bio_vec. Jens complained a while ago that this is fairly expensive. To mitigate this we can check that that the actual page structures are contiguous when adding them to the bio, and just do check pointer arithmetics later on. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/bvec.h | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bvec.h b/include/linux/bvec.h index 307bbda62b7b..44b0f4684190 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -51,11 +51,6 @@ struct bvec_iter_all { unsigned done; }; -static inline struct page *bvec_nth_page(struct page *page, int idx) -{ - return idx == 0 ? page : nth_page(page, idx); -} - /* * various member access, note that bio_data should of course not be used * on highmem page vectors @@ -92,8 +87,8 @@ static inline struct page *bvec_nth_page(struct page *page, int idx) PAGE_SIZE - bvec_iter_offset((bvec), (iter))) #define bvec_iter_page(bvec, iter) \ - bvec_nth_page(mp_bvec_iter_page((bvec), (iter)), \ - mp_bvec_iter_page_idx((bvec), (iter))) + (mp_bvec_iter_page((bvec), (iter)) + \ + mp_bvec_iter_page_idx((bvec), (iter))) #define bvec_iter_bvec(bvec, iter) \ ((struct bio_vec) { \ @@ -157,7 +152,7 @@ static inline void mp_bvec_next_segment(const struct bio_vec *bvec, struct bio_vec *bv = &iter_all->bv; if (bv->bv_page) { - bv->bv_page = nth_page(bv->bv_page, 1); + bv->bv_page++; bv->bv_offset = 0; } else { bv->bv_page = bvec->bv_page; @@ -177,7 +172,7 @@ static inline void mp_bvec_last_segment(const struct bio_vec *bvec, unsigned total = bvec->bv_offset + bvec->bv_len; unsigned last_page = (total - 1) / PAGE_SIZE; - seg->bv_page = bvec_nth_page(bvec->bv_page, last_page); + seg->bv_page = bvec->bv_page + last_page; /* the whole segment is inside the last page */ if (bvec->bv_offset >= last_page * PAGE_SIZE) { -- cgit v1.2.3 From d08d42de6432d5064045159aed060e3db9fa7807 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 21 Feb 2019 14:23:25 -0600 Subject: iommu: io-pgtable: Add ARM Mali midgard MMU page table format ARM Mali midgard GPU is similar to standard 64-bit stage 1 page tables, but have a few differences. Add a new format type to represent the format. The input address size is 48-bits and the output address size is 40-bits (and possibly less?). Note that the later bifrost GPUs follow the standard 64-bit stage 1 format. The differences in the format compared to 64-bit stage 1 format are: The 3rd level page entry bits are 0x1 instead of 0x3 for page entries. The access flags are not read-only and unprivileged, but read and write. This is similar to stage 2 entries, but the memory attributes field matches stage 1 being an index. The nG bit is not set by the vendor driver. This one didn't seem to matter, but we'll keep it aligned to the vendor driver. Cc: Will Deacon Acked-by: Robin Murphy Cc: linux-arm-kernel@lists.infradead.org Cc: iommu@lists.linux-foundation.org Acked-by: Alyssa Rosenzweig Acked-by: Joerg Roedel Signed-off-by: Rob Herring Link: https://patchwork.freedesktop.org/patch/msgid/20190409205427.6943-2-robh@kernel.org --- include/linux/io-pgtable.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/io-pgtable.h b/include/linux/io-pgtable.h index 47d5ae559329..76969a564831 100644 --- a/include/linux/io-pgtable.h +++ b/include/linux/io-pgtable.h @@ -12,6 +12,7 @@ enum io_pgtable_fmt { ARM_64_LPAE_S1, ARM_64_LPAE_S2, ARM_V7S, + ARM_MALI_LPAE, IO_PGTABLE_NUM_FMTS, }; @@ -108,6 +109,11 @@ struct io_pgtable_cfg { u32 nmrr; u32 prrr; } arm_v7s_cfg; + + struct { + u64 transtab; + u64 memattr; + } arm_mali_lpae_cfg; }; }; @@ -209,5 +215,6 @@ extern struct io_pgtable_init_fns io_pgtable_arm_32_lpae_s2_init_fns; extern struct io_pgtable_init_fns io_pgtable_arm_64_lpae_s1_init_fns; extern struct io_pgtable_init_fns io_pgtable_arm_64_lpae_s2_init_fns; extern struct io_pgtable_init_fns io_pgtable_arm_v7s_init_fns; +extern struct io_pgtable_init_fns io_pgtable_arm_mali_lpae_init_fns; #endif /* __IO_PGTABLE_H */ -- cgit v1.2.3 From 673387a930059fc4ad8060847a1d46f94e702281 Mon Sep 17 00:00:00 2001 From: Martin Wilck Date: Wed, 27 Mar 2019 14:51:01 +0100 Subject: block: genhd: remove async_events field The async_events field, intended to be used for drivers that support asynchronous notifications about disk events (aka media change events), isn't currently used by any driver, and apparently that has been that way for a long time (if not forever). Remove it. Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Signed-off-by: Martin Wilck Signed-off-by: Jens Axboe --- include/linux/genhd.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 98076b1b5e48..a65d9fc17369 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -185,7 +185,6 @@ struct gendisk { char *(*devnode)(struct gendisk *gd, umode_t *mode); unsigned int events; /* supported events */ - unsigned int async_events; /* async events, subset of all */ /* Array of pointers to partitions indexed by partno. * Protected with matching bdev lock but stat and other -- cgit v1.2.3 From c92e2f04b35938da23eb9a7f7101cbdd5ac7cdc4 Mon Sep 17 00:00:00 2001 From: Martin Wilck Date: Wed, 27 Mar 2019 14:51:02 +0100 Subject: block: disk_events: introduce event flags Currently, an empty disk->events field tells the block layer not to forward media change events to user space. This was done in commit 7c88a168da80 ("block: don't propagate unlisted DISK_EVENTs to userland") in order to avoid events from "fringe" drivers to be forwarded to user space. By doing so, the block layer lost the information which events were supported by a particular block device, and most importantly, whether or not a given device supports media change events at all. Prepare for not interpreting the "events" field this way in the future any more. This is done by adding an additional field "event_flags" to struct gendisk, and two flag bits that can be set to have the device treated like one that had the "events" field set to a non-zero value before. This applies only to the sd and sr drivers, which are changed to set the new flags. The new flags are DISK_EVENT_FLAG_POLL to enforce polling of the device for synchronous events, and DISK_EVENT_FLAG_UEVENT to tell the blocklayer to generate udev events from kernel events. In order to add the event_flags field to struct gendisk, the events field is converted to an "unsigned short"; it doesn't need to hold values bigger than 2 anyway. This patch doesn't change behavior. Reviewed-by: Christoph Hellwig Signed-off-by: Martin Wilck Signed-off-by: Jens Axboe --- include/linux/genhd.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/genhd.h b/include/linux/genhd.h index a65d9fc17369..6547c9256d5c 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -150,6 +150,13 @@ enum { DISK_EVENT_EJECT_REQUEST = 1 << 1, /* eject requested */ }; +enum { + /* Poll even if events_poll_msecs is unset */ + DISK_EVENT_FLAG_POLL = 1 << 0, + /* Forward events to udev */ + DISK_EVENT_FLAG_UEVENT = 1 << 1, +}; + struct disk_part_tbl { struct rcu_head rcu_head; int len; @@ -184,7 +191,8 @@ struct gendisk { char disk_name[DISK_NAME_LEN]; /* name of major driver */ char *(*devnode)(struct gendisk *gd, umode_t *mode); - unsigned int events; /* supported events */ + unsigned short events; /* supported events */ + unsigned short event_flags; /* flags related to event processing */ /* Array of pointers to partitions indexed by partno. * Protected with matching bdev lock but stat and other -- cgit v1.2.3 From 7b146cebe30cb481b0f70d85779da938da818637 Mon Sep 17 00:00:00 2001 From: Andrey Ignatov Date: Wed, 27 Feb 2019 12:59:24 -0800 Subject: bpf: Sysctl hook Containerized applications may run as root and it may create problems for whole host. Specifically such applications may change a sysctl and affect applications in other containers. Furthermore in existing infrastructure it may not be possible to just completely disable writing to sysctl, instead such a process should be gradual with ability to log what sysctl are being changed by a container, investigate, limit the set of writable sysctl to currently used ones (so that new ones can not be changed) and eventually reduce this set to zero. The patch introduces new program type BPF_PROG_TYPE_CGROUP_SYSCTL and attach type BPF_CGROUP_SYSCTL to solve these problems on cgroup basis. New program type has access to following minimal context: struct bpf_sysctl { __u32 write; }; Where @write indicates whether sysctl is being read (= 0) or written (= 1). Helpers to access sysctl name and value will be introduced separately. BPF_CGROUP_SYSCTL attach point is added to sysctl code right before passing control to ctl_table->proc_handler so that BPF program can either allow or deny access to sysctl. Suggested-by: Roman Gushchin Signed-off-by: Andrey Ignatov Signed-off-by: Alexei Starovoitov --- include/linux/bpf-cgroup.h | 18 ++++++++++++++++++ include/linux/bpf_types.h | 1 + include/linux/filter.h | 8 ++++++++ 3 files changed, 27 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bpf-cgroup.h b/include/linux/bpf-cgroup.h index a4c644c1c091..b1c45da20a26 100644 --- a/include/linux/bpf-cgroup.h +++ b/include/linux/bpf-cgroup.h @@ -17,6 +17,8 @@ struct bpf_map; struct bpf_prog; struct bpf_sock_ops_kern; struct bpf_cgroup_storage; +struct ctl_table; +struct ctl_table_header; #ifdef CONFIG_CGROUP_BPF @@ -109,6 +111,10 @@ int __cgroup_bpf_run_filter_sock_ops(struct sock *sk, int __cgroup_bpf_check_dev_permission(short dev_type, u32 major, u32 minor, short access, enum bpf_attach_type type); +int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head, + struct ctl_table *table, int write, + enum bpf_attach_type type); + static inline enum bpf_cgroup_storage_type cgroup_storage_type( struct bpf_map *map) { @@ -253,6 +259,17 @@ int bpf_percpu_cgroup_storage_update(struct bpf_map *map, void *key, \ __ret; \ }) + + +#define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write) \ +({ \ + int __ret = 0; \ + if (cgroup_bpf_enabled) \ + __ret = __cgroup_bpf_run_filter_sysctl(head, table, write, \ + BPF_CGROUP_SYSCTL); \ + __ret; \ +}) + int cgroup_bpf_prog_attach(const union bpf_attr *attr, enum bpf_prog_type ptype, struct bpf_prog *prog); int cgroup_bpf_prog_detach(const union bpf_attr *attr, @@ -321,6 +338,7 @@ static inline int bpf_percpu_cgroup_storage_update(struct bpf_map *map, #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; }) #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) ({ 0; }) #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(type,major,minor,access) ({ 0; }) +#define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write) ({ 0; }) #define for_each_cgroup_storage_type(stype) for (; false; ) diff --git a/include/linux/bpf_types.h b/include/linux/bpf_types.h index 08bf2f1fe553..d26991a16894 100644 --- a/include/linux/bpf_types.h +++ b/include/linux/bpf_types.h @@ -28,6 +28,7 @@ BPF_PROG_TYPE(BPF_PROG_TYPE_RAW_TRACEPOINT, raw_tracepoint) #endif #ifdef CONFIG_CGROUP_BPF BPF_PROG_TYPE(BPF_PROG_TYPE_CGROUP_DEVICE, cg_dev) +BPF_PROG_TYPE(BPF_PROG_TYPE_CGROUP_SYSCTL, cg_sysctl) #endif #ifdef CONFIG_BPF_LIRC_MODE2 BPF_PROG_TYPE(BPF_PROG_TYPE_LIRC_MODE2, lirc_mode2) diff --git a/include/linux/filter.h b/include/linux/filter.h index 6074aa064b54..a17732057880 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -33,6 +33,8 @@ struct bpf_prog_aux; struct xdp_rxq_info; struct xdp_buff; struct sock_reuseport; +struct ctl_table; +struct ctl_table_header; /* ArgX, context and stack frame pointer register positions. Note, * Arg1, Arg2, Arg3, etc are used as argument mappings of function @@ -1177,4 +1179,10 @@ struct bpf_sock_ops_kern { */ }; +struct bpf_sysctl_kern { + struct ctl_table_header *head; + struct ctl_table *table; + int write; +}; + #endif /* __LINUX_FILTER_H__ */ -- cgit v1.2.3 From 1d11b3016cec4ed9770b98e82a61708c8f4926e7 Mon Sep 17 00:00:00 2001 From: Andrey Ignatov Date: Thu, 28 Feb 2019 19:22:15 -0800 Subject: bpf: Introduce bpf_sysctl_get_current_value helper Add bpf_sysctl_get_current_value() helper to copy current sysctl value into provided by BPF_PROG_TYPE_CGROUP_SYSCTL program buffer. It provides same string as user space can see by reading corresponding file in /proc/sys/, including new line, etc. Documentation for the new helper is provided in bpf.h UAPI. Since current value is kept in ctl_table->data in a parsed form, ctl_table->proc_handler() with write=0 is called to read that data and convert it to a string. Such a string can later be parsed by a program using helpers that will be introduced separately. Unfortunately it's not trivial to provide API to access parsed data due to variety of data representations (string, intvec, uintvec, ulongvec, custom structures, even NULL, etc). Instead it's assumed that user know how to handle specific sysctl they're interested in and appropriate helpers can be used. Since ctl_table->proc_handler() expects __user buffer, conversion to __user happens for kernel allocated one where the value is stored. Signed-off-by: Andrey Ignatov Signed-off-by: Alexei Starovoitov --- include/linux/filter.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/filter.h b/include/linux/filter.h index a17732057880..f254ff92819f 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -1182,6 +1182,8 @@ struct bpf_sock_ops_kern { struct bpf_sysctl_kern { struct ctl_table_header *head; struct ctl_table *table; + void *cur_val; + size_t cur_len; int write; }; -- cgit v1.2.3 From 4e63acdff864654cee0ac5aaeda3913798ee78f6 Mon Sep 17 00:00:00 2001 From: Andrey Ignatov Date: Thu, 7 Mar 2019 18:38:43 -0800 Subject: bpf: Introduce bpf_sysctl_{get,set}_new_value helpers Add helpers to work with new value being written to sysctl by user space. bpf_sysctl_get_new_value() copies value being written to sysctl into provided buffer. bpf_sysctl_set_new_value() overrides new value being written by user space with a one from provided buffer. Buffer should contain string representation of the value, similar to what can be seen in /proc/sys/. Both helpers can be used only on sysctl write. File position matters and can be managed by an interface that will be introduced separately. E.g. if user space calls sys_write to a file in /proc/sys/ at file position = X, where X > 0, then the value set by bpf_sysctl_set_new_value() will be written starting from X. If program wants to override whole value with specified buffer, file position has to be set to zero. Documentation for the new helpers is provided in bpf.h UAPI. Signed-off-by: Andrey Ignatov Signed-off-by: Alexei Starovoitov --- include/linux/bpf-cgroup.h | 8 +++++--- include/linux/filter.h | 3 +++ 2 files changed, 8 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bpf-cgroup.h b/include/linux/bpf-cgroup.h index b1c45da20a26..1e97271f9a10 100644 --- a/include/linux/bpf-cgroup.h +++ b/include/linux/bpf-cgroup.h @@ -113,7 +113,8 @@ int __cgroup_bpf_check_dev_permission(short dev_type, u32 major, u32 minor, int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head, struct ctl_table *table, int write, - enum bpf_attach_type type); + void __user *buf, size_t *pcount, + void **new_buf, enum bpf_attach_type type); static inline enum bpf_cgroup_storage_type cgroup_storage_type( struct bpf_map *map) @@ -261,11 +262,12 @@ int bpf_percpu_cgroup_storage_update(struct bpf_map *map, void *key, }) -#define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write) \ +#define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write, buf, count, nbuf) \ ({ \ int __ret = 0; \ if (cgroup_bpf_enabled) \ __ret = __cgroup_bpf_run_filter_sysctl(head, table, write, \ + buf, count, nbuf, \ BPF_CGROUP_SYSCTL); \ __ret; \ }) @@ -338,7 +340,7 @@ static inline int bpf_percpu_cgroup_storage_update(struct bpf_map *map, #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; }) #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) ({ 0; }) #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(type,major,minor,access) ({ 0; }) -#define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write) ({ 0; }) +#define BPF_CGROUP_RUN_PROG_SYSCTL(head,table,write,buf,count,nbuf) ({ 0; }) #define for_each_cgroup_storage_type(stype) for (; false; ) diff --git a/include/linux/filter.h b/include/linux/filter.h index f254ff92819f..a23653f9460c 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -1184,6 +1184,9 @@ struct bpf_sysctl_kern { struct ctl_table *table; void *cur_val; size_t cur_len; + void *new_val; + size_t new_len; + int new_updated; int write; }; -- cgit v1.2.3 From e1550bfe0de47e30484ba91de1e50a91ec1c31f5 Mon Sep 17 00:00:00 2001 From: Andrey Ignatov Date: Thu, 7 Mar 2019 18:50:52 -0800 Subject: bpf: Add file_pos field to bpf_sysctl ctx Add file_pos field to bpf_sysctl context to read and write sysctl file position at which sysctl is being accessed (read or written). The field can be used to e.g. override whole sysctl value on write to sysctl even when sys_write is called by user space with file_pos > 0. Or BPF program may reject such accesses. Signed-off-by: Andrey Ignatov Signed-off-by: Alexei Starovoitov --- include/linux/bpf-cgroup.h | 9 +++++---- include/linux/filter.h | 3 +++ 2 files changed, 8 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bpf-cgroup.h b/include/linux/bpf-cgroup.h index 1e97271f9a10..cb3c6b3b89c8 100644 --- a/include/linux/bpf-cgroup.h +++ b/include/linux/bpf-cgroup.h @@ -114,7 +114,8 @@ int __cgroup_bpf_check_dev_permission(short dev_type, u32 major, u32 minor, int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head, struct ctl_table *table, int write, void __user *buf, size_t *pcount, - void **new_buf, enum bpf_attach_type type); + loff_t *ppos, void **new_buf, + enum bpf_attach_type type); static inline enum bpf_cgroup_storage_type cgroup_storage_type( struct bpf_map *map) @@ -262,12 +263,12 @@ int bpf_percpu_cgroup_storage_update(struct bpf_map *map, void *key, }) -#define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write, buf, count, nbuf) \ +#define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write, buf, count, pos, nbuf) \ ({ \ int __ret = 0; \ if (cgroup_bpf_enabled) \ __ret = __cgroup_bpf_run_filter_sysctl(head, table, write, \ - buf, count, nbuf, \ + buf, count, pos, nbuf, \ BPF_CGROUP_SYSCTL); \ __ret; \ }) @@ -340,7 +341,7 @@ static inline int bpf_percpu_cgroup_storage_update(struct bpf_map *map, #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; }) #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) ({ 0; }) #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(type,major,minor,access) ({ 0; }) -#define BPF_CGROUP_RUN_PROG_SYSCTL(head,table,write,buf,count,nbuf) ({ 0; }) +#define BPF_CGROUP_RUN_PROG_SYSCTL(head,table,write,buf,count,pos,nbuf) ({ 0; }) #define for_each_cgroup_storage_type(stype) for (; false; ) diff --git a/include/linux/filter.h b/include/linux/filter.h index a23653f9460c..fb0edad75971 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -1188,6 +1188,9 @@ struct bpf_sysctl_kern { size_t new_len; int new_updated; int write; + loff_t *ppos; + /* Temporary "register" for indirect stores to ppos. */ + u64 tmp_reg; }; #endif /* __LINUX_FILTER_H__ */ -- cgit v1.2.3 From 57c3bb725a3dd97d960d7e1cd0845d88de53217f Mon Sep 17 00:00:00 2001 From: Andrey Ignatov Date: Mon, 18 Mar 2019 16:57:10 -0700 Subject: bpf: Introduce ARG_PTR_TO_{INT,LONG} arg types Currently the way to pass result from BPF helper to BPF program is to provide memory area defined by pointer and size: func(void *, size_t). It works great for generic use-case, but for simple types, such as int, it's overkill and consumes two arguments when it could use just one. Introduce new argument types ARG_PTR_TO_INT and ARG_PTR_TO_LONG to be able to pass result from helper to program via pointer to int and long correspondingly: func(int *) or func(long *). New argument types are similar to ARG_PTR_TO_MEM with the following differences: * they don't require corresponding ARG_CONST_SIZE argument, predefined access sizes are used instead (32bit for int, 64bit for long); * it's possible to use more than one such an argument in a helper; * provided pointers have to be aligned. It's easy to introduce similar ARG_PTR_TO_CHAR and ARG_PTR_TO_SHORT argument types. It's not done due to lack of use-case though. Signed-off-by: Andrey Ignatov Signed-off-by: Alexei Starovoitov --- include/linux/bpf.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index e4d4c1771ab0..fd06ada941ad 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -202,6 +202,8 @@ enum bpf_arg_type { ARG_ANYTHING, /* any (initialized) argument is ok */ ARG_PTR_TO_SPIN_LOCK, /* pointer to bpf_spin_lock */ ARG_PTR_TO_SOCK_COMMON, /* pointer to sock_common */ + ARG_PTR_TO_INT, /* pointer to int */ + ARG_PTR_TO_LONG, /* pointer to long */ }; /* type of values returned from helper functions */ -- cgit v1.2.3 From d7a4cb9b6705a89937d12c8158a35a3145dc967a Mon Sep 17 00:00:00 2001 From: Andrey Ignatov Date: Mon, 18 Mar 2019 17:55:26 -0700 Subject: bpf: Introduce bpf_strtol and bpf_strtoul helpers Add bpf_strtol and bpf_strtoul to convert a string to long and unsigned long correspondingly. It's similar to user space strtol(3) and strtoul(3) with a few changes to the API: * instead of NUL-terminated C string the helpers expect buffer and buffer length; * resulting long or unsigned long is returned in a separate result-argument; * return value is used to indicate success or failure, on success number of consumed bytes is returned that can be used to identify position to read next if the buffer is expected to contain multiple integers; * instead of *base* argument, *flags* is used that provides base in 5 LSB, other bits are reserved for future use; * number of supported bases is limited. Documentation for the new helpers is provided in bpf.h UAPI. The helpers are made available to BPF_PROG_TYPE_CGROUP_SYSCTL programs to be able to convert string input to e.g. "ulongvec" output. E.g. "net/ipv4/tcp_mem" consists of three ulong integers. They can be parsed by calling to bpf_strtoul three times. Implementation notes: Implementation includes "../../lib/kstrtox.h" to reuse integer parsing functions. It's done exactly same way as fs/proc/base.c already does. Unfortunately existing kstrtoX function can't be used directly since they fail if any invalid character is present right after integer in the string. Existing simple_strtoX functions can't be used either since they're obsolete and don't handle overflow properly. Signed-off-by: Andrey Ignatov Signed-off-by: Alexei Starovoitov --- include/linux/bpf.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index fd06ada941ad..f15432d90728 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -989,6 +989,8 @@ extern const struct bpf_func_proto bpf_sk_redirect_map_proto; extern const struct bpf_func_proto bpf_spin_lock_proto; extern const struct bpf_func_proto bpf_spin_unlock_proto; extern const struct bpf_func_proto bpf_get_local_storage_proto; +extern const struct bpf_func_proto bpf_strtol_proto; +extern const struct bpf_func_proto bpf_strtoul_proto; /* Shared helpers among cBPF and eBPF. */ void bpf_user_rnd_init_once(void); -- cgit v1.2.3 From a6a6d0589ac4ff3e1eb962f6c53e67d8f6386c18 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Wed, 10 Apr 2019 16:16:19 +0200 Subject: scsi: scsi_transport_fc: nvme: display FC-NVMe port roles Currently the FC-NVMe driver is leverating the SCSI FC transport class to access the remote ports. Which means that all FC-NVMe remote ports will be visible to the fc transport layer, but due to missing definitions the port roles will always be 'unknown'. This patch adds the missing definitions to the fc transport class to that the port roles are correctly displayed. Signed-off-by: Hannes Reinecke Reviewed-by: James Smart Reviewed-by: Ewan D. Milne Reviewed-by: Giridhar Malavali Reviewed-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- include/linux/nvme-fc-driver.h | 6 ------ 1 file changed, 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/nvme-fc-driver.h b/include/linux/nvme-fc-driver.h index 2bb349035431..c48e96436f56 100644 --- a/include/linux/nvme-fc-driver.h +++ b/include/linux/nvme-fc-driver.h @@ -17,12 +17,6 @@ -/* FC Port role bitmask - can merge with FC Port Roles in fc transport */ -#define FC_PORT_ROLE_NVME_INITIATOR 0x10 -#define FC_PORT_ROLE_NVME_TARGET 0x20 -#define FC_PORT_ROLE_NVME_DISCOVERY 0x40 - - /** * struct nvme_fc_port_info - port-specific ids and FC connection-specific * data element used during NVME Host role -- cgit v1.2.3 From e4edbe3c1f44c84f319149aeb998e7e36b3b897f Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 12 Apr 2019 11:52:07 +1000 Subject: rhashtable: fix some __rcu annotation errors With these annotations, the rhashtable now gets no warnings when compiled with "C=1" for sparse checking. Signed-off-by: NeilBrown Signed-off-by: David S. Miller --- include/linux/rhashtable.h | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index 460c0eaf6b96..2711cbf01b64 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -40,7 +40,7 @@ * the chain. To avoid dereferencing this pointer without clearing * the bit first, we use an opaque 'struct rhash_lock_head *' for the * pointer stored in the bucket. This struct needs to be defined so - * that rcu_derefernce() works on it, but it has no content so a + * that rcu_dereference() works on it, but it has no content so a * cast is needed for it to be useful. This ensures it isn't * used by mistake with clearing the lock bit first. */ @@ -130,10 +130,10 @@ static inline void rht_unlock(struct bucket_table *tbl, } static inline void rht_assign_unlock(struct bucket_table *tbl, - struct rhash_lock_head **bkt, + struct rhash_lock_head __rcu **bkt, struct rhash_head *obj) { - struct rhash_head **p = (struct rhash_head **)bkt; + struct rhash_head __rcu **p = (struct rhash_head __rcu **)bkt; lock_map_release(&tbl->dep_map); rcu_assign_pointer(*p, obj); @@ -556,6 +556,7 @@ static inline struct rhash_head *__rhashtable_lookup( }; struct rhash_lock_head __rcu * const *bkt; struct bucket_table *tbl; + struct rhash_head __rcu *head; struct rhash_head *he; unsigned int hash; @@ -564,8 +565,8 @@ restart: hash = rht_key_hashfn(ht, tbl, key, params); bkt = rht_bucket(tbl, hash); do { - he = rht_ptr(rht_dereference_bucket_rcu(*bkt, tbl, hash)); - rht_for_each_rcu_from(he, he, tbl, hash) { + head = rht_ptr(rht_dereference_bucket_rcu(*bkt, tbl, hash)); + rht_for_each_rcu_from(he, head, tbl, hash) { if (params.obj_cmpfn ? params.obj_cmpfn(&arg, rht_obj(ht, he)) : rhashtable_compare(&arg, rht_obj(ht, he))) -- cgit v1.2.3 From c5783311a1248c437614d438b69c5f31fe483ecb Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 12 Apr 2019 11:52:08 +1000 Subject: rhashtable: reorder some inline functions and macros. This patch only moves some code around, it doesn't change the code at all. A subsequent patch will benefit from this as it needs to add calls to functions which are now defined before the call-site, but weren't before. Signed-off-by: NeilBrown Signed-off-by: David S. Miller --- include/linux/rhashtable.h | 142 ++++++++++++++++++++++----------------------- 1 file changed, 71 insertions(+), 71 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index 2711cbf01b64..c504cd820736 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -87,77 +87,6 @@ struct bucket_table { struct rhash_lock_head __rcu *buckets[] ____cacheline_aligned_in_smp; }; -/* - * We lock a bucket by setting BIT(1) in the pointer - this is always - * zero in real pointers and in the nulls marker. - * bit_spin_locks do not handle contention well, but the whole point - * of the hashtable design is to achieve minimum per-bucket contention. - * A nested hash table might not have a bucket pointer. In that case - * we cannot get a lock. For remove and replace the bucket cannot be - * interesting and doesn't need locking. - * For insert we allocate the bucket if this is the last bucket_table, - * and then take the lock. - * Sometimes we unlock a bucket by writing a new pointer there. In that - * case we don't need to unlock, but we do need to reset state such as - * local_bh. For that we have rht_assign_unlock(). As rcu_assign_pointer() - * provides the same release semantics that bit_spin_unlock() provides, - * this is safe. - */ - -static inline void rht_lock(struct bucket_table *tbl, - struct rhash_lock_head **bkt) -{ - local_bh_disable(); - bit_spin_lock(1, (unsigned long *)bkt); - lock_map_acquire(&tbl->dep_map); -} - -static inline void rht_lock_nested(struct bucket_table *tbl, - struct rhash_lock_head **bucket, - unsigned int subclass) -{ - local_bh_disable(); - bit_spin_lock(1, (unsigned long *)bucket); - lock_acquire_exclusive(&tbl->dep_map, subclass, 0, NULL, _THIS_IP_); -} - -static inline void rht_unlock(struct bucket_table *tbl, - struct rhash_lock_head **bkt) -{ - lock_map_release(&tbl->dep_map); - bit_spin_unlock(1, (unsigned long *)bkt); - local_bh_enable(); -} - -static inline void rht_assign_unlock(struct bucket_table *tbl, - struct rhash_lock_head __rcu **bkt, - struct rhash_head *obj) -{ - struct rhash_head __rcu **p = (struct rhash_head __rcu **)bkt; - - lock_map_release(&tbl->dep_map); - rcu_assign_pointer(*p, obj); - preempt_enable(); - __release(bitlock); - local_bh_enable(); -} - -/* - * If 'p' is a bucket head and might be locked: - * rht_ptr() returns the address without the lock bit. - * rht_ptr_locked() returns the address WITH the lock bit. - */ -static inline struct rhash_head __rcu *rht_ptr(const struct rhash_lock_head *p) -{ - return (void *)(((unsigned long)p) & ~BIT(1)); -} - -static inline struct rhash_lock_head __rcu *rht_ptr_locked(const - struct rhash_head *p) -{ - return (void *)(((unsigned long)p) | BIT(1)); -} - /* * NULLS_MARKER() expects a hash value with the low * bits mostly likely to be significant, and it discards @@ -372,6 +301,77 @@ static inline struct rhash_lock_head __rcu **rht_bucket_insert( &tbl->buckets[hash]; } +/* + * We lock a bucket by setting BIT(1) in the pointer - this is always + * zero in real pointers and in the nulls marker. + * bit_spin_locks do not handle contention well, but the whole point + * of the hashtable design is to achieve minimum per-bucket contention. + * A nested hash table might not have a bucket pointer. In that case + * we cannot get a lock. For remove and replace the bucket cannot be + * interesting and doesn't need locking. + * For insert we allocate the bucket if this is the last bucket_table, + * and then take the lock. + * Sometimes we unlock a bucket by writing a new pointer there. In that + * case we don't need to unlock, but we do need to reset state such as + * local_bh. For that we have rht_assign_unlock(). As rcu_assign_pointer() + * provides the same release semantics that bit_spin_unlock() provides, + * this is safe. + */ + +static inline void rht_lock(struct bucket_table *tbl, + struct rhash_lock_head **bkt) +{ + local_bh_disable(); + bit_spin_lock(1, (unsigned long *)bkt); + lock_map_acquire(&tbl->dep_map); +} + +static inline void rht_lock_nested(struct bucket_table *tbl, + struct rhash_lock_head **bucket, + unsigned int subclass) +{ + local_bh_disable(); + bit_spin_lock(1, (unsigned long *)bucket); + lock_acquire_exclusive(&tbl->dep_map, subclass, 0, NULL, _THIS_IP_); +} + +static inline void rht_unlock(struct bucket_table *tbl, + struct rhash_lock_head **bkt) +{ + lock_map_release(&tbl->dep_map); + bit_spin_unlock(1, (unsigned long *)bkt); + local_bh_enable(); +} + +/* + * If 'p' is a bucket head and might be locked: + * rht_ptr() returns the address without the lock bit. + * rht_ptr_locked() returns the address WITH the lock bit. + */ +static inline struct rhash_head __rcu *rht_ptr(const struct rhash_lock_head *p) +{ + return (void *)(((unsigned long)p) & ~BIT(1)); +} + +static inline struct rhash_lock_head __rcu *rht_ptr_locked(const + struct rhash_head *p) +{ + return (void *)(((unsigned long)p) | BIT(1)); +} + +static inline void rht_assign_unlock(struct bucket_table *tbl, + struct rhash_lock_head __rcu **bkt, + struct rhash_head *obj) +{ + struct rhash_head __rcu **p = (struct rhash_head __rcu **)bkt; + + lock_map_release(&tbl->dep_map); + rcu_assign_pointer(*p, obj); + preempt_enable(); + __release(bitlock); + local_bh_enable(); +} + /** * rht_for_each_from - iterate over hash chain from given head * @pos: the &struct rhash_head to use as a loop cursor. -- cgit v1.2.3 From adc6a3ab192eb40fb9d8b093c87d9aa785af4513 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 12 Apr 2019 11:52:08 +1000 Subject: rhashtable: move dereference inside rht_ptr() Rather than dereferencing a pointer to a bucket and then passing the result to rht_ptr(), we now pass in the pointer and do the dereference in rht_ptr(). This requires that we pass in the tbl and hash as well to support RCU checks, and means that the various rht_for_each functions can expect a pointer that can be dereferenced without further care. There are two places where we dereference a bucket pointer where there is no testable protection - in each case we know that we much have exclusive access without having taken a lock. The previous code used rht_dereference() to pretend that holding the mutex provided protects, but holding the mutex never provides protection for accessing buckets. So instead introduce rht_ptr_exclusive() that can be used when there is known to be exclusive access without holding any locks. Signed-off-by: NeilBrown Signed-off-by: David S. Miller --- include/linux/rhashtable.h | 69 ++++++++++++++++++++++++++++------------------ 1 file changed, 42 insertions(+), 27 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index c504cd820736..b54e6436547e 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -344,12 +344,28 @@ static inline void rht_unlock(struct bucket_table *tbl, } /* - * If 'p' is a bucket head and might be locked: - * rht_ptr() returns the address without the lock bit. - * rht_ptr_locked() returns the address WITH the lock bit. + * Where 'bkt' is a bucket and might be locked: + * rht_ptr() dereferences that pointer and clears the lock bit. + * rht_ptr_exclusive() dereferences in a context where exclusive + * access is guaranteed, such as when destroying the table. */ -static inline struct rhash_head __rcu *rht_ptr(const struct rhash_lock_head *p) +static inline struct rhash_head *rht_ptr( + struct rhash_lock_head __rcu * const *bkt, + struct bucket_table *tbl, + unsigned int hash) { + const struct rhash_lock_head *p = + rht_dereference_bucket_rcu(*bkt, tbl, hash); + + return (void *)(((unsigned long)p) & ~BIT(1)); +} + +static inline struct rhash_head *rht_ptr_exclusive( + struct rhash_lock_head __rcu * const *bkt) +{ + const struct rhash_lock_head *p = + rcu_dereference_protected(*bkt, 1); + return (void *)(((unsigned long)p) & ~BIT(1)); } @@ -380,8 +396,8 @@ static inline void rht_assign_unlock(struct bucket_table *tbl, * @hash: the hash value / bucket index */ #define rht_for_each_from(pos, head, tbl, hash) \ - for (pos = rht_dereference_bucket(head, tbl, hash); \ - !rht_is_a_nulls(pos); \ + for (pos = head; \ + !rht_is_a_nulls(pos); \ pos = rht_dereference_bucket((pos)->next, tbl, hash)) /** @@ -391,7 +407,8 @@ static inline void rht_assign_unlock(struct bucket_table *tbl, * @hash: the hash value / bucket index */ #define rht_for_each(pos, tbl, hash) \ - rht_for_each_from(pos, rht_ptr(*rht_bucket(tbl, hash)), tbl, hash) + rht_for_each_from(pos, rht_ptr(rht_bucket(tbl, hash), tbl, hash), \ + tbl, hash) /** * rht_for_each_entry_from - iterate over hash chain from given head @@ -403,7 +420,7 @@ static inline void rht_assign_unlock(struct bucket_table *tbl, * @member: name of the &struct rhash_head within the hashable struct. */ #define rht_for_each_entry_from(tpos, pos, head, tbl, hash, member) \ - for (pos = rht_dereference_bucket(head, tbl, hash); \ + for (pos = head; \ (!rht_is_a_nulls(pos)) && rht_entry(tpos, pos, member); \ pos = rht_dereference_bucket((pos)->next, tbl, hash)) @@ -416,8 +433,9 @@ static inline void rht_assign_unlock(struct bucket_table *tbl, * @member: name of the &struct rhash_head within the hashable struct. */ #define rht_for_each_entry(tpos, pos, tbl, hash, member) \ - rht_for_each_entry_from(tpos, pos, rht_ptr(*rht_bucket(tbl, hash)), \ - tbl, hash, member) + rht_for_each_entry_from(tpos, pos, \ + rht_ptr(rht_bucket(tbl, hash), tbl, hash), \ + tbl, hash, member) /** * rht_for_each_entry_safe - safely iterate over hash chain of given type @@ -432,8 +450,7 @@ static inline void rht_assign_unlock(struct bucket_table *tbl, * remove the loop cursor from the list. */ #define rht_for_each_entry_safe(tpos, pos, next, tbl, hash, member) \ - for (pos = rht_dereference_bucket(rht_ptr(*rht_bucket(tbl, hash)), \ - tbl, hash), \ + for (pos = rht_ptr(rht_bucket(tbl, hash), tbl, hash), \ next = !rht_is_a_nulls(pos) ? \ rht_dereference_bucket(pos->next, tbl, hash) : NULL; \ (!rht_is_a_nulls(pos)) && rht_entry(tpos, pos, member); \ @@ -454,7 +471,7 @@ static inline void rht_assign_unlock(struct bucket_table *tbl, */ #define rht_for_each_rcu_from(pos, head, tbl, hash) \ for (({barrier(); }), \ - pos = rht_dereference_bucket_rcu(head, tbl, hash); \ + pos = head; \ !rht_is_a_nulls(pos); \ pos = rcu_dereference_raw(pos->next)) @@ -469,10 +486,9 @@ static inline void rht_assign_unlock(struct bucket_table *tbl, * traversal is guarded by rcu_read_lock(). */ #define rht_for_each_rcu(pos, tbl, hash) \ - for (({barrier(); }), \ - pos = rht_ptr(rht_dereference_bucket_rcu( \ - *rht_bucket(tbl, hash), tbl, hash)); \ - !rht_is_a_nulls(pos); \ + for (({barrier(); }), \ + pos = rht_ptr(rht_bucket(tbl, hash), tbl, hash); \ + !rht_is_a_nulls(pos); \ pos = rcu_dereference_raw(pos->next)) /** @@ -490,7 +506,7 @@ static inline void rht_assign_unlock(struct bucket_table *tbl, */ #define rht_for_each_entry_rcu_from(tpos, pos, head, tbl, hash, member) \ for (({barrier(); }), \ - pos = rht_dereference_bucket_rcu(head, tbl, hash); \ + pos = head; \ (!rht_is_a_nulls(pos)) && rht_entry(tpos, pos, member); \ pos = rht_dereference_bucket_rcu(pos->next, tbl, hash)) @@ -508,8 +524,9 @@ static inline void rht_assign_unlock(struct bucket_table *tbl, */ #define rht_for_each_entry_rcu(tpos, pos, tbl, hash, member) \ rht_for_each_entry_rcu_from(tpos, pos, \ - rht_ptr(*rht_bucket(tbl, hash)), \ - tbl, hash, member) + rht_ptr(rht_bucket(tbl, hash), \ + tbl, hash), \ + tbl, hash, member) /** * rhl_for_each_rcu - iterate over rcu hash table list @@ -556,7 +573,6 @@ static inline struct rhash_head *__rhashtable_lookup( }; struct rhash_lock_head __rcu * const *bkt; struct bucket_table *tbl; - struct rhash_head __rcu *head; struct rhash_head *he; unsigned int hash; @@ -565,8 +581,7 @@ restart: hash = rht_key_hashfn(ht, tbl, key, params); bkt = rht_bucket(tbl, hash); do { - head = rht_ptr(rht_dereference_bucket_rcu(*bkt, tbl, hash)); - rht_for_each_rcu_from(he, head, tbl, hash) { + rht_for_each_rcu_from(he, rht_ptr(bkt, tbl, hash), tbl, hash) { if (params.obj_cmpfn ? params.obj_cmpfn(&arg, rht_obj(ht, he)) : rhashtable_compare(&arg, rht_obj(ht, he))) @@ -699,7 +714,7 @@ slow_path: return rhashtable_insert_slow(ht, key, obj); } - rht_for_each_from(head, rht_ptr(*bkt), tbl, hash) { + rht_for_each_from(head, rht_ptr(bkt, tbl, hash), tbl, hash) { struct rhlist_head *plist; struct rhlist_head *list; @@ -744,7 +759,7 @@ slow_path: goto slow_path; /* Inserting at head of list makes unlocking free. */ - head = rht_ptr(rht_dereference_bucket(*bkt, tbl, hash)); + head = rht_ptr(bkt, tbl, hash); RCU_INIT_POINTER(obj->next, head); if (rhlist) { @@ -971,7 +986,7 @@ static inline int __rhashtable_remove_fast_one( pprev = NULL; rht_lock(tbl, bkt); - rht_for_each_from(he, rht_ptr(*bkt), tbl, hash) { + rht_for_each_from(he, rht_ptr(bkt, tbl, hash), tbl, hash) { struct rhlist_head *list; list = container_of(he, struct rhlist_head, rhead); @@ -1130,7 +1145,7 @@ static inline int __rhashtable_replace_fast( pprev = NULL; rht_lock(tbl, bkt); - rht_for_each_from(he, rht_ptr(*bkt), tbl, hash) { + rht_for_each_from(he, rht_ptr(bkt, tbl, hash), tbl, hash) { if (he != obj_old) { pprev = &he->next; continue; -- cgit v1.2.3 From f4712b46a529ca2da078c82d5d99d367c7ebf82b Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 12 Apr 2019 11:52:08 +1000 Subject: rhashtable: replace rht_ptr_locked() with rht_assign_locked() The only times rht_ptr_locked() is used, it is to store a new value in a bucket-head. This is the only time it makes sense to use it too. So replace it by a function which does the whole task: Sets the lock bit and assigns to a bucket head. Signed-off-by: NeilBrown Signed-off-by: David S. Miller --- include/linux/rhashtable.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index b54e6436547e..882bc0fcea4b 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -316,6 +316,7 @@ static inline struct rhash_lock_head __rcu **rht_bucket_insert( * local_bh. For that we have rht_assign_unlock(). As rcu_assign_pointer() * provides the same release semantics that bit_spin_unlock() provides, * this is safe. + * When we write to a bucket without unlocking, we use rht_assign_locked(). */ static inline void rht_lock(struct bucket_table *tbl, @@ -369,10 +370,12 @@ static inline struct rhash_head *rht_ptr_exclusive( return (void *)(((unsigned long)p) & ~BIT(1)); } -static inline struct rhash_lock_head __rcu *rht_ptr_locked(const - struct rhash_head *p) +static inline void rht_assign_locked(struct rhash_lock_head __rcu **bkt, + struct rhash_head *obj) { - return (void *)(((unsigned long)p) | BIT(1)); + struct rhash_head __rcu **p = (struct rhash_head __rcu **)bkt; + + rcu_assign_pointer(*p, (void *)((unsigned long)obj | BIT(1))); } static inline void rht_assign_unlock(struct bucket_table *tbl, -- cgit v1.2.3 From ca0b709d1a07b1fe1fb356d8d58f220287f85672 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 12 Apr 2019 11:52:08 +1000 Subject: rhashtable: use BIT(0) for locking. As reported by Guenter Roeck, the new bit-locking using BIT(1) doesn't work on the m68k architecture. m68k only requires 2-byte alignment for words and longwords, so there is only one unused bit in pointers to structs - We current use two, one for the NULLS marker at the end of the linked list, and one for the bit-lock in the head of the list. The two uses don't need to conflict as we never need the head of the list to be a NULLS marker - the marker is only needed to check if an object has moved to a different table, and the bucket head cannot move. The NULLS marker is only needed in a ->next pointer. As we already have different types for the bucket head pointer (struct rhash_lock_head) and the ->next pointers (struct rhash_head), it is fairly easy to treat the lsb differently in each. So: Initialize buckets heads to NULL, and use the lsb for locking. When loading the pointer from the bucket head, if it is NULL (ignoring the lock big), report as being the expected NULLS marker. When storing a value into a bucket head, if it is a NULLS marker, store NULL instead. And convert all places that used bit 1 for locking, to use bit 0. Fixes: 8f0db018006a ("rhashtable: use bit_spin_locks to protect hash bucket.") Reported-by: Guenter Roeck Tested-by: Guenter Roeck Signed-off-by: NeilBrown Signed-off-by: David S. Miller --- include/linux/rhashtable.h | 35 ++++++++++++++++++++++++----------- 1 file changed, 24 insertions(+), 11 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index 882bc0fcea4b..f7714d3b46bd 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -35,7 +35,7 @@ * the least significant bit set but otherwise stores the address of * the hash bucket. This allows us to be be sure we've found the end * of the right list. - * The value stored in the hash bucket has BIT(2) used as a lock bit. + * The value stored in the hash bucket has BIT(0) used as a lock bit. * This bit must be atomically set before any changes are made to * the chain. To avoid dereferencing this pointer without clearing * the bit first, we use an opaque 'struct rhash_lock_head *' for the @@ -91,15 +91,19 @@ struct bucket_table { * NULLS_MARKER() expects a hash value with the low * bits mostly likely to be significant, and it discards * the msb. - * We git it an address, in which the bottom 2 bits are + * We give it an address, in which the bottom bit is * always 0, and the msb might be significant. * So we shift the address down one bit to align with * expectations and avoid losing a significant bit. + * + * We never store the NULLS_MARKER in the hash table + * itself as we need the lsb for locking. + * Instead we store a NULL */ #define RHT_NULLS_MARKER(ptr) \ ((void *)NULLS_MARKER(((unsigned long) (ptr)) >> 1)) #define INIT_RHT_NULLS_HEAD(ptr) \ - ((ptr) = RHT_NULLS_MARKER(&(ptr))) + ((ptr) = NULL) static inline bool rht_is_a_nulls(const struct rhash_head *ptr) { @@ -302,8 +306,9 @@ static inline struct rhash_lock_head __rcu **rht_bucket_insert( } /* - * We lock a bucket by setting BIT(1) in the pointer - this is always - * zero in real pointers and in the nulls marker. + * We lock a bucket by setting BIT(0) in the pointer - this is always + * zero in real pointers. The NULLS mark is never stored in the bucket, + * rather we store NULL if the bucket is empty. * bit_spin_locks do not handle contention well, but the whole point * of the hashtable design is to achieve minimum per-bucket contention. * A nested hash table might not have a bucket pointer. In that case @@ -323,7 +328,7 @@ static inline void rht_lock(struct bucket_table *tbl, struct rhash_lock_head **bkt) { local_bh_disable(); - bit_spin_lock(1, (unsigned long *)bkt); + bit_spin_lock(0, (unsigned long *)bkt); lock_map_acquire(&tbl->dep_map); } @@ -332,7 +337,7 @@ static inline void rht_lock_nested(struct bucket_table *tbl, unsigned int subclass) { local_bh_disable(); - bit_spin_lock(1, (unsigned long *)bucket); + bit_spin_lock(0, (unsigned long *)bucket); lock_acquire_exclusive(&tbl->dep_map, subclass, 0, NULL, _THIS_IP_); } @@ -340,7 +345,7 @@ static inline void rht_unlock(struct bucket_table *tbl, struct rhash_lock_head **bkt) { lock_map_release(&tbl->dep_map); - bit_spin_unlock(1, (unsigned long *)bkt); + bit_spin_unlock(0, (unsigned long *)bkt); local_bh_enable(); } @@ -358,7 +363,9 @@ static inline struct rhash_head *rht_ptr( const struct rhash_lock_head *p = rht_dereference_bucket_rcu(*bkt, tbl, hash); - return (void *)(((unsigned long)p) & ~BIT(1)); + if ((((unsigned long)p) & ~BIT(0)) == 0) + return RHT_NULLS_MARKER(bkt); + return (void *)(((unsigned long)p) & ~BIT(0)); } static inline struct rhash_head *rht_ptr_exclusive( @@ -367,7 +374,9 @@ static inline struct rhash_head *rht_ptr_exclusive( const struct rhash_lock_head *p = rcu_dereference_protected(*bkt, 1); - return (void *)(((unsigned long)p) & ~BIT(1)); + if (!p) + return RHT_NULLS_MARKER(bkt); + return (void *)(((unsigned long)p) & ~BIT(0)); } static inline void rht_assign_locked(struct rhash_lock_head __rcu **bkt, @@ -375,7 +384,9 @@ static inline void rht_assign_locked(struct rhash_lock_head __rcu **bkt, { struct rhash_head __rcu **p = (struct rhash_head __rcu **)bkt; - rcu_assign_pointer(*p, (void *)((unsigned long)obj | BIT(1))); + if (rht_is_a_nulls(obj)) + obj = NULL; + rcu_assign_pointer(*p, (void *)((unsigned long)obj | BIT(0))); } static inline void rht_assign_unlock(struct bucket_table *tbl, @@ -384,6 +395,8 @@ static inline void rht_assign_unlock(struct bucket_table *tbl, { struct rhash_head __rcu **p = (struct rhash_head __rcu **)bkt; + if (rht_is_a_nulls(obj)) + obj = NULL; lock_map_release(&tbl->dep_map); rcu_assign_pointer(*p, obj); preempt_enable(); -- cgit v1.2.3 From 1caf7a70a93f81fad622131e34ce68d131a71064 Mon Sep 17 00:00:00 2001 From: Lukas Bulwahn Date: Thu, 11 Apr 2019 05:53:52 +0200 Subject: fs: drop unused fput_atomic definition commit d7065da03822 ("get rid of the magic around f_count in aio") added fput_atomic to include/linux/fs.h, motivated by its use in __aio_put_req() in fs/aio.c. Later, commit 3ffa3c0e3f6e ("aio: now fput() is OK from interrupt context; get rid of manual delayed __fput()") removed the only use of fput_atomic in __aio_put_req(), but did not remove the since then unused fput_atomic definition in include/linux/fs.h. We curate this now and finally remove the unused definition. This issue was identified during a code review due to a coccinelle warning from the atomic_as_refcounter.cocci rule pointing to the use of atomic_t in fput_atomic. Suggested-by: Krystian Radlak Signed-off-by: Lukas Bulwahn Signed-off-by: Al Viro --- include/linux/fs.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/fs.h b/include/linux/fs.h index dd28e7679089..79b2f43b945d 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -969,7 +969,6 @@ static inline struct file *get_file(struct file *f) #define get_file_rcu_many(x, cnt) \ atomic_long_add_unless(&(x)->f_count, (cnt), 0) #define get_file_rcu(x) get_file_rcu_many((x), 1) -#define fput_atomic(x) atomic_long_add_unless(&(x)->f_count, -1, 1) #define file_count(x) atomic_long_read(&(x)->f_count) #define MAX_NON_LFS ((1UL<<31) - 1) -- cgit v1.2.3 From 12fa4f47924c9e0638869c2315dda29d50a94446 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Fri, 1 Sep 2017 18:14:04 -0500 Subject: CPER: Add UEFI spec references Add UEFI spec references for CPER UUIDs and structures, fix a few typos, and remove some useless comments. No functional change intended. Link: http://www.uefi.org/specifications Signed-off-by: Bjorn Helgaas --- include/linux/cper.h | 54 +++++++++++++++++++++++++--------------------------- 1 file changed, 26 insertions(+), 28 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cper.h b/include/linux/cper.h index 9c703a0abe6e..2f361a96dc76 100644 --- a/include/linux/cper.h +++ b/include/linux/cper.h @@ -44,7 +44,7 @@ */ #define CPER_REC_LEN 256 /* - * Severity difinition for error_severity in struct cper_record_header + * Severity definition for error_severity in struct cper_record_header * and section_severity in struct cper_section_descriptor */ enum { @@ -55,24 +55,21 @@ enum { }; /* - * Validation bits difinition for validation_bits in struct + * Validation bits definition for validation_bits in struct * cper_record_header. If set, corresponding fields in struct * cper_record_header contain valid information. - * - * corresponds platform_id */ #define CPER_VALID_PLATFORM_ID 0x0001 -/* corresponds timestamp */ #define CPER_VALID_TIMESTAMP 0x0002 -/* corresponds partition_id */ #define CPER_VALID_PARTITION_ID 0x0004 /* * Notification type used to generate error record, used in - * notification_type in struct cper_record_header - * - * Corrected Machine Check + * notification_type in struct cper_record_header. These UUIDs are defined + * in the UEFI spec v2.7, sec N.2.1. */ + +/* Corrected Machine Check */ #define CPER_NOTIFY_CMC \ GUID_INIT(0x2DCE8BB1, 0xBDD7, 0x450e, 0xB9, 0xAD, 0x9C, 0xF4, \ 0xEB, 0xD4, 0xF8, 0x90) @@ -122,14 +119,11 @@ enum { #define CPER_SEC_REV 0x0100 /* - * Validation bits difinition for validation_bits in struct + * Validation bits definition for validation_bits in struct * cper_section_descriptor. If set, corresponding fields in struct * cper_section_descriptor contain valid information. - * - * corresponds fru_id */ #define CPER_SEC_VALID_FRU_ID 0x1 -/* corresponds fru_text */ #define CPER_SEC_VALID_FRU_TEXT 0x2 /* @@ -165,10 +159,11 @@ enum { /* * Section type definitions, used in section_type field in struct - * cper_section_descriptor - * - * Processor Generic + * cper_section_descriptor. These UUIDs are defined in the UEFI spec + * v2.7, sec N.2.2. */ + +/* Processor Generic */ #define CPER_SEC_PROC_GENERIC \ GUID_INIT(0x9876CCAD, 0x47B4, 0x4bdb, 0xB6, 0x5E, 0x16, 0xF1, \ 0x93, 0xC4, 0xF3, 0xDB) @@ -325,6 +320,7 @@ enum { */ #pragma pack(1) +/* Record Header, UEFI v2.7 sec N.2.1 */ struct cper_record_header { char signature[CPER_SIG_SIZE]; /* must be CPER_SIG_RECORD */ __u16 revision; /* must be CPER_RECORD_REV */ @@ -344,6 +340,7 @@ struct cper_record_header { __u8 reserved[12]; /* must be zero */ }; +/* Section Descriptor, UEFI v2.7 sec N.2.2 */ struct cper_section_descriptor { __u32 section_offset; /* Offset in bytes of the * section body from the base @@ -359,7 +356,7 @@ struct cper_section_descriptor { __u8 fru_text[20]; }; -/* Generic Processor Error Section */ +/* Generic Processor Error Section, UEFI v2.7 sec N.2.4.1 */ struct cper_sec_proc_generic { __u64 validation_bits; __u8 proc_type; @@ -378,14 +375,14 @@ struct cper_sec_proc_generic { __u64 ip; }; -/* IA32/X64 Processor Error Section */ +/* IA32/X64 Processor Error Section, UEFI v2.7 sec N.2.4.2 */ struct cper_sec_proc_ia { __u64 validation_bits; __u64 lapic_id; __u8 cpuid[48]; }; -/* IA32/X64 Processor Error Information Structure */ +/* IA32/X64 Processor Error Information Structure, UEFI v2.7 sec N.2.4.2.1 */ struct cper_ia_err_info { guid_t err_type; __u64 validation_bits; @@ -396,7 +393,7 @@ struct cper_ia_err_info { __u64 ip; }; -/* IA32/X64 Processor Context Information Structure */ +/* IA32/X64 Processor Context Information Structure, UEFI v2.7 sec N.2.4.2.2 */ struct cper_ia_proc_ctx { __u16 reg_ctx_type; __u16 reg_arr_size; @@ -404,7 +401,7 @@ struct cper_ia_proc_ctx { __u64 mm_reg_addr; }; -/* ARM Processor Error Section */ +/* ARM Processor Error Section, UEFI v2.7 sec N.2.4.4 */ struct cper_sec_proc_arm { __u32 validation_bits; __u16 err_info_num; /* Number of Processor Error Info */ @@ -418,7 +415,7 @@ struct cper_sec_proc_arm { __u32 psci_state; }; -/* ARM Processor Error Information Structure */ +/* ARM Processor Error Information Structure, UEFI v2.7 sec N.2.4.4.1 */ struct cper_arm_err_info { __u8 version; __u8 length; @@ -431,14 +428,14 @@ struct cper_arm_err_info { __u64 physical_fault_addr; }; -/* ARM Processor Context Information Structure */ +/* ARM Processor Context Information Structure, UEFI v2.7 sec N.2.4.4.2 */ struct cper_arm_ctx_info { __u16 version; __u16 type; __u32 size; }; -/* Old Memory Error Section UEFI 2.1, 2.2 */ +/* Old Memory Error Section, UEFI v2.1, v2.2 */ struct cper_sec_mem_err_old { __u64 validation_bits; __u64 error_status; @@ -458,7 +455,7 @@ struct cper_sec_mem_err_old { __u8 error_type; }; -/* Memory Error Section UEFI >= 2.3 */ +/* Memory Error Section (UEFI >= v2.3), UEFI v2.7 sec N.2.5 */ struct cper_sec_mem_err { __u64 validation_bits; __u64 error_status; @@ -478,8 +475,8 @@ struct cper_sec_mem_err { __u8 error_type; __u8 reserved; __u16 rank; - __u16 mem_array_handle; /* card handle in UEFI 2.4 */ - __u16 mem_dev_handle; /* module handle in UEFI 2.4 */ + __u16 mem_array_handle; /* "card handle" in UEFI 2.4 */ + __u16 mem_dev_handle; /* "module handle" in UEFI 2.4 */ }; struct cper_mem_err_compact { @@ -500,6 +497,7 @@ struct cper_mem_err_compact { __u16 mem_dev_handle; }; +/* PCI Express Error Section, UEFI v2.7 sec N.2.7 */ struct cper_sec_pcie { __u64 validation_bits; __u32 port_type; @@ -538,7 +536,7 @@ struct cper_sec_pcie { /* Reset to default packing */ #pragma pack() -extern const char * const cper_proc_error_type_strs[4]; +extern const char *const cper_proc_error_type_strs[4]; u64 cper_next_record_id(void); const char *cper_severity_str(unsigned int); -- cgit v1.2.3 From 113fb03ed1d4c1877cc8817e500867616b222380 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Fri, 22 Mar 2019 13:06:40 -0500 Subject: CPER: Remove unnecessary use of user-space types "__u32" and similar types are intended for things exported to user-space, including structs used in ioctls; see include/uapi/asm-generic/int-l64.h. They are not needed for the CPER struct definitions, which not exported to user-space and not used in ioctls. Replace them with the typical "u32" and similar types. No functional change intended. The reason for changing this is to remove the question of "why do we use __u32 here instead of u32?" We should use __u32 when there's a reason for it; otherwise, we should prefer u32 for consistency. Reference: Documentation/process/coding-style.rst Signed-off-by: Bjorn Helgaas CC: Masahiro Yamada CC: Greg Kroah-Hartman CC: Andrew Morton --- include/linux/cper.h | 286 +++++++++++++++++++++++++-------------------------- 1 file changed, 143 insertions(+), 143 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cper.h b/include/linux/cper.h index 2f361a96dc76..cc4980bb0f65 100644 --- a/include/linux/cper.h +++ b/include/linux/cper.h @@ -323,214 +323,214 @@ enum { /* Record Header, UEFI v2.7 sec N.2.1 */ struct cper_record_header { char signature[CPER_SIG_SIZE]; /* must be CPER_SIG_RECORD */ - __u16 revision; /* must be CPER_RECORD_REV */ - __u32 signature_end; /* must be CPER_SIG_END */ - __u16 section_count; - __u32 error_severity; - __u32 validation_bits; - __u32 record_length; - __u64 timestamp; + u16 revision; /* must be CPER_RECORD_REV */ + u32 signature_end; /* must be CPER_SIG_END */ + u16 section_count; + u32 error_severity; + u32 validation_bits; + u32 record_length; + u64 timestamp; guid_t platform_id; guid_t partition_id; guid_t creator_id; guid_t notification_type; - __u64 record_id; - __u32 flags; - __u64 persistence_information; - __u8 reserved[12]; /* must be zero */ + u64 record_id; + u32 flags; + u64 persistence_information; + u8 reserved[12]; /* must be zero */ }; /* Section Descriptor, UEFI v2.7 sec N.2.2 */ struct cper_section_descriptor { - __u32 section_offset; /* Offset in bytes of the + u32 section_offset; /* Offset in bytes of the * section body from the base * of the record header */ - __u32 section_length; - __u16 revision; /* must be CPER_RECORD_REV */ - __u8 validation_bits; - __u8 reserved; /* must be zero */ - __u32 flags; + u32 section_length; + u16 revision; /* must be CPER_RECORD_REV */ + u8 validation_bits; + u8 reserved; /* must be zero */ + u32 flags; guid_t section_type; guid_t fru_id; - __u32 section_severity; - __u8 fru_text[20]; + u32 section_severity; + u8 fru_text[20]; }; /* Generic Processor Error Section, UEFI v2.7 sec N.2.4.1 */ struct cper_sec_proc_generic { - __u64 validation_bits; - __u8 proc_type; - __u8 proc_isa; - __u8 proc_error_type; - __u8 operation; - __u8 flags; - __u8 level; - __u16 reserved; - __u64 cpu_version; + u64 validation_bits; + u8 proc_type; + u8 proc_isa; + u8 proc_error_type; + u8 operation; + u8 flags; + u8 level; + u16 reserved; + u64 cpu_version; char cpu_brand[128]; - __u64 proc_id; - __u64 target_addr; - __u64 requestor_id; - __u64 responder_id; - __u64 ip; + u64 proc_id; + u64 target_addr; + u64 requestor_id; + u64 responder_id; + u64 ip; }; /* IA32/X64 Processor Error Section, UEFI v2.7 sec N.2.4.2 */ struct cper_sec_proc_ia { - __u64 validation_bits; - __u64 lapic_id; - __u8 cpuid[48]; + u64 validation_bits; + u64 lapic_id; + u8 cpuid[48]; }; /* IA32/X64 Processor Error Information Structure, UEFI v2.7 sec N.2.4.2.1 */ struct cper_ia_err_info { guid_t err_type; - __u64 validation_bits; - __u64 check_info; - __u64 target_id; - __u64 requestor_id; - __u64 responder_id; - __u64 ip; + u64 validation_bits; + u64 check_info; + u64 target_id; + u64 requestor_id; + u64 responder_id; + u64 ip; }; /* IA32/X64 Processor Context Information Structure, UEFI v2.7 sec N.2.4.2.2 */ struct cper_ia_proc_ctx { - __u16 reg_ctx_type; - __u16 reg_arr_size; - __u32 msr_addr; - __u64 mm_reg_addr; + u16 reg_ctx_type; + u16 reg_arr_size; + u32 msr_addr; + u64 mm_reg_addr; }; /* ARM Processor Error Section, UEFI v2.7 sec N.2.4.4 */ struct cper_sec_proc_arm { - __u32 validation_bits; - __u16 err_info_num; /* Number of Processor Error Info */ - __u16 context_info_num; /* Number of Processor Context Info Records*/ - __u32 section_length; - __u8 affinity_level; - __u8 reserved[3]; /* must be zero */ - __u64 mpidr; - __u64 midr; - __u32 running_state; /* Bit 0 set - Processor running. PSCI = 0 */ - __u32 psci_state; + u32 validation_bits; + u16 err_info_num; /* Number of Processor Error Info */ + u16 context_info_num; /* Number of Processor Context Info Records*/ + u32 section_length; + u8 affinity_level; + u8 reserved[3]; /* must be zero */ + u64 mpidr; + u64 midr; + u32 running_state; /* Bit 0 set - Processor running. PSCI = 0 */ + u32 psci_state; }; /* ARM Processor Error Information Structure, UEFI v2.7 sec N.2.4.4.1 */ struct cper_arm_err_info { - __u8 version; - __u8 length; - __u16 validation_bits; - __u8 type; - __u16 multiple_error; - __u8 flags; - __u64 error_info; - __u64 virt_fault_addr; - __u64 physical_fault_addr; + u8 version; + u8 length; + u16 validation_bits; + u8 type; + u16 multiple_error; + u8 flags; + u64 error_info; + u64 virt_fault_addr; + u64 physical_fault_addr; }; /* ARM Processor Context Information Structure, UEFI v2.7 sec N.2.4.4.2 */ struct cper_arm_ctx_info { - __u16 version; - __u16 type; - __u32 size; + u16 version; + u16 type; + u32 size; }; /* Old Memory Error Section, UEFI v2.1, v2.2 */ struct cper_sec_mem_err_old { - __u64 validation_bits; - __u64 error_status; - __u64 physical_addr; - __u64 physical_addr_mask; - __u16 node; - __u16 card; - __u16 module; - __u16 bank; - __u16 device; - __u16 row; - __u16 column; - __u16 bit_pos; - __u64 requestor_id; - __u64 responder_id; - __u64 target_id; - __u8 error_type; + u64 validation_bits; + u64 error_status; + u64 physical_addr; + u64 physical_addr_mask; + u16 node; + u16 card; + u16 module; + u16 bank; + u16 device; + u16 row; + u16 column; + u16 bit_pos; + u64 requestor_id; + u64 responder_id; + u64 target_id; + u8 error_type; }; /* Memory Error Section (UEFI >= v2.3), UEFI v2.7 sec N.2.5 */ struct cper_sec_mem_err { - __u64 validation_bits; - __u64 error_status; - __u64 physical_addr; - __u64 physical_addr_mask; - __u16 node; - __u16 card; - __u16 module; - __u16 bank; - __u16 device; - __u16 row; - __u16 column; - __u16 bit_pos; - __u64 requestor_id; - __u64 responder_id; - __u64 target_id; - __u8 error_type; - __u8 reserved; - __u16 rank; - __u16 mem_array_handle; /* "card handle" in UEFI 2.4 */ - __u16 mem_dev_handle; /* "module handle" in UEFI 2.4 */ + u64 validation_bits; + u64 error_status; + u64 physical_addr; + u64 physical_addr_mask; + u16 node; + u16 card; + u16 module; + u16 bank; + u16 device; + u16 row; + u16 column; + u16 bit_pos; + u64 requestor_id; + u64 responder_id; + u64 target_id; + u8 error_type; + u8 reserved; + u16 rank; + u16 mem_array_handle; /* "card handle" in UEFI 2.4 */ + u16 mem_dev_handle; /* "module handle" in UEFI 2.4 */ }; struct cper_mem_err_compact { - __u64 validation_bits; - __u16 node; - __u16 card; - __u16 module; - __u16 bank; - __u16 device; - __u16 row; - __u16 column; - __u16 bit_pos; - __u64 requestor_id; - __u64 responder_id; - __u64 target_id; - __u16 rank; - __u16 mem_array_handle; - __u16 mem_dev_handle; + u64 validation_bits; + u16 node; + u16 card; + u16 module; + u16 bank; + u16 device; + u16 row; + u16 column; + u16 bit_pos; + u64 requestor_id; + u64 responder_id; + u64 target_id; + u16 rank; + u16 mem_array_handle; + u16 mem_dev_handle; }; /* PCI Express Error Section, UEFI v2.7 sec N.2.7 */ struct cper_sec_pcie { - __u64 validation_bits; - __u32 port_type; + u64 validation_bits; + u32 port_type; struct { - __u8 minor; - __u8 major; - __u8 reserved[2]; + u8 minor; + u8 major; + u8 reserved[2]; } version; - __u16 command; - __u16 status; - __u32 reserved; + u16 command; + u16 status; + u32 reserved; struct { - __u16 vendor_id; - __u16 device_id; - __u8 class_code[3]; - __u8 function; - __u8 device; - __u16 segment; - __u8 bus; - __u8 secondary_bus; - __u16 slot; - __u8 reserved; + u16 vendor_id; + u16 device_id; + u8 class_code[3]; + u8 function; + u8 device; + u16 segment; + u8 bus; + u8 secondary_bus; + u16 slot; + u8 reserved; } device_id; struct { - __u32 lower; - __u32 upper; + u32 lower; + u32 upper; } serial_number; struct { - __u16 secondary_status; - __u16 control; + u16 secondary_status; + u16 control; } bridge; - __u8 capability[60]; - __u8 aer_info[96]; + u8 capability[60]; + u8 aer_info[96]; }; /* Reset to default packing */ -- cgit v1.2.3 From 9f421096a16e75d22e69f766206f1bb0dc8fcf90 Mon Sep 17 00:00:00 2001 From: Artur Rojek Date: Sat, 23 Mar 2019 18:28:06 +0100 Subject: iio: inkern: API for reading available iio channel attribute values Extend the inkern API with a function for reading available attribute values of iio channels. Signed-off-by: Artur Rojek Signed-off-by: Jonathan Cameron --- include/linux/iio/consumer.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/linux') diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h index 9887f4f8e2a8..b2d34831ed7c 100644 --- a/include/linux/iio/consumer.h +++ b/include/linux/iio/consumer.h @@ -290,6 +290,20 @@ int iio_read_max_channel_raw(struct iio_channel *chan, int *val); int iio_read_avail_channel_raw(struct iio_channel *chan, const int **vals, int *length); +/** + * iio_read_avail_channel_attribute() - read available channel attribute values + * @chan: The channel being queried. + * @vals: Available values read back. + * @type: Type of values read back. + * @length: Number of entries in vals. + * @attribute: info attribute to be read back. + * + * Returns an error code, IIO_AVAIL_RANGE or IIO_AVAIL_LIST. + */ +int iio_read_avail_channel_attribute(struct iio_channel *chan, + const int **vals, int *type, int *length, + enum iio_chan_info_enum attribute); + /** * iio_get_channel_type() - get the type of a channel * @channel: The channel being queried. -- cgit v1.2.3 From e840decc1954521ff73bbc87b5b3ea36af1704d2 Mon Sep 17 00:00:00 2001 From: Nava kishore Manne Date: Mon, 15 Apr 2019 12:47:46 +0530 Subject: firmware: xilinx: Add fpga API's This Patch Adds fpga API's to support the Bitstream loading by using firmware interface. Signed-off-by: Nava kishore Manne Reviewed-by: Moritz Fischer Signed-off-by: Michal Simek --- include/linux/firmware/xlnx-zynqmp.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/linux') diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index 3533ee557043..1262ea6a1f4b 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -48,6 +48,14 @@ #define ZYNQMP_PM_CAPABILITY_WAKEUP 0x4U #define ZYNQMP_PM_CAPABILITY_POWER 0x8U +/* + * Firmware FPGA Manager flags + * XILINX_ZYNQMP_PM_FPGA_FULL: FPGA full reconfiguration + * XILINX_ZYNQMP_PM_FPGA_PARTIAL: FPGA partial reconfiguration + */ +#define XILINX_ZYNQMP_PM_FPGA_FULL 0x0U +#define XILINX_ZYNQMP_PM_FPGA_PARTIAL BIT(0) + enum pm_api_id { PM_GET_API_VERSION = 1, PM_REQUEST_NODE = 13, @@ -56,6 +64,8 @@ enum pm_api_id { PM_RESET_ASSERT = 17, PM_RESET_GET_STATUS, PM_PM_INIT_FINALIZE = 21, + PM_FPGA_LOAD, + PM_FPGA_GET_STATUS, PM_GET_CHIPID = 24, PM_IOCTL = 34, PM_QUERY_DATA, @@ -258,6 +268,8 @@ struct zynqmp_pm_query_data { struct zynqmp_eemi_ops { int (*get_api_version)(u32 *version); int (*get_chipid)(u32 *idcode, u32 *version); + int (*fpga_load)(const u64 address, const u32 size, const u32 flags); + int (*fpga_get_status)(u32 *value); int (*query_data)(struct zynqmp_pm_query_data qdata, u32 *out); int (*clock_enable)(u32 clock_id); int (*clock_disable)(u32 clock_id); -- cgit v1.2.3 From 3ec25826ae33618a03c28235af8d62e8a7f7f15f Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 12 Apr 2019 22:11:31 -0400 Subject: printk: Tie printk_once / printk_deferred_once into .data.once for reset In commit b1fca27d384e ("kernel debug: support resetting WARN*_ONCE") we got the opportunity to reset state on the one shot messages, without having to reboot. However printk_once (printk_deferred_once) live in a different file and didn't get the same kind of update/conversion, so they remain unconditionally one shot, until the system is rebooted. For example, we currently have: sched/rt.c: printk_deferred_once("sched: RT throttling activated\n"); ..which could reasonably be tripped as someone is testing and tuning a new system/workload and their task placements. For consistency, and to avoid reboots in the same vein as the original commit, we make these two instances of _once the same as the WARN*_ONCE instances are. Link: http://lkml.kernel.org/r/1555121491-31213-1-git-send-email-paul.gortmaker@windriver.com Cc: Andi Kleen Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: Steven Rostedt Cc: Andrew Morton Signed-off-by: Paul Gortmaker Reviewed-by: Sergey Senozhatsky Signed-off-by: Petr Mladek --- include/linux/printk.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/printk.h b/include/linux/printk.h index d7c77ed1a4cb..84ea4d094af3 100644 --- a/include/linux/printk.h +++ b/include/linux/printk.h @@ -347,7 +347,7 @@ extern int kptr_restrict; #ifdef CONFIG_PRINTK #define printk_once(fmt, ...) \ ({ \ - static bool __print_once __read_mostly; \ + static bool __section(.data.once) __print_once; \ bool __ret_print_once = !__print_once; \ \ if (!__print_once) { \ @@ -358,7 +358,7 @@ extern int kptr_restrict; }) #define printk_deferred_once(fmt, ...) \ ({ \ - static bool __print_once __read_mostly; \ + static bool __section(.data.once) __print_once; \ bool __ret_print_once = !__print_once; \ \ if (!__print_once) { \ -- cgit v1.2.3 From 2a9a801620efac92885fc9cd53594c0b9aba87a4 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Mon, 25 Mar 2019 15:09:39 +0530 Subject: PCI: endpoint: Add support to specify alignment for buffers allocated to BARs The address that is allocated using pci_epf_alloc_space() is directly written to the target address of the Inbound Address Translation unit (ie the HW component implementing inbound address decoding) on endpoint controllers. Designware IP [1] has a configuration parameter (CX_ATU_MIN_REGION_SIZE [2]) which has 64KB as default value and the lower 16 bits of the Base, Limit and Target registers of the Inbound ATU are fixed to zero. If the programmed memory address is not aligned to 64 KB boundary this causes memory corruption. Modify pci_epf_alloc_space() API to take alignment size as argument in order to allocate buffers to be mapped to BARs with an alignment that suits the platform where they are used. Add an 'align' parameter to epc_features which can be used by platform drivers to specify the BAR allocation alignment requirements and use this while invoking pci_epf_alloc_space(). [1] "I/O and MEM Match Modes" section in DesignWare Cores PCI Express Controller Databook version 4.90a [2] http://www.ti.com/lit/ug/spruid7c/spruid7c.pdf Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Lorenzo Pieralisi --- include/linux/pci-epc.h | 2 ++ include/linux/pci-epf.h | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h index c3ffa3917f88..f641badc2c61 100644 --- a/include/linux/pci-epc.h +++ b/include/linux/pci-epc.h @@ -109,6 +109,7 @@ struct pci_epc { * @reserved_bar: bitmap to indicate reserved BAR unavailable to function driver * @bar_fixed_64bit: bitmap to indicate fixed 64bit BARs * @bar_fixed_size: Array specifying the size supported by each BAR + * @align: alignment size required for BAR buffer allocation */ struct pci_epc_features { unsigned int linkup_notifier : 1; @@ -117,6 +118,7 @@ struct pci_epc_features { u8 reserved_bar; u8 bar_fixed_64bit; u64 bar_fixed_size[BAR_5 + 1]; + size_t align; }; #define to_pci_epc(device) container_of((device), struct pci_epc, dev) diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h index ec02f58758c8..2d6f07556682 100644 --- a/include/linux/pci-epf.h +++ b/include/linux/pci-epf.h @@ -149,7 +149,8 @@ void pci_epf_destroy(struct pci_epf *epf); int __pci_epf_register_driver(struct pci_epf_driver *driver, struct module *owner); void pci_epf_unregister_driver(struct pci_epf_driver *driver); -void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar); +void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar, + size_t align); void pci_epf_free_space(struct pci_epf *epf, void *addr, enum pci_barno bar); int pci_epf_bind(struct pci_epf *epf); void pci_epf_unbind(struct pci_epf *epf); -- cgit v1.2.3 From 14e14aaf61321ba30d0bbdf4c4668f260ca1141c Mon Sep 17 00:00:00 2001 From: Nick Crews Date: Thu, 4 Apr 2019 16:54:15 -0600 Subject: platform/chrome: wilco_ec: Standardize mailbox interface The current API for the wilco EC mailbox interface is bad. It assumes that most messages sent to the EC follow a similar structure, with a command byte in MBOX[0], followed by a junk byte, followed by actual data. This doesn't happen in several cases, such as setting the RTC time, using the raw debugfs interface, and reading or writing properties such as the Peak Shift policy (this last to be submitted soon). Similarly for the response message from the EC, the current interface assumes that the first byte of data is always 0, and the second byte is unused. However, in both setting and getting the RTC time, in the debugfs interface, and for reading and writing properties, this isn't true. The current way to resolve this is to use WILCO_EC_FLAG_RAW* flags to specify when and when not to skip these initial bytes in the sent and received message. They are confusing and used so much that they are normal, and not exceptions. In addition, the first byte of response in the debugfs interface is still always skipped, which is weird, since this raw interface should be giving the entire result. Additionally, sent messages assume the first byte is a command, and so struct wilco_ec_message contains the "command" field. In setting or getting properties however, the first byte is not a command, and so this field has to be filled with a byte that isn't actually a command. This is again inconsistent. wilco_ec_message contains a result field as well, copied from wilco_ec_response->result. The message result field should be removed: if the message fails, the cause is already logged, and the callers are alerted. They will never care about the actual state of the result flag. These flags and different cases make the wilco_ec_transfer() function, used in wilco_ec_mailbox(), really gross, dealing with a bunch of different cases. It's difficult to figure out what it is doing. Finally, making these assumptions about the structure of a message make it so that the messages do not correspond well with the specification for the EC's mailbox interface. For instance, this interface specification may say that MBOX[9] in the received message contains some information, but the calling code needs to remember that the first byte of response is always skipped, and because it didn't set the RESPONSE_RAW flag, the next byte is also skipped, so this information is actually contained within wilco_ec_message->response_data[7]. This makes it difficult to maintain this code in the future. To fix these problems this patch standardizes the mailbox interface by: - Removing the WILCO_EC_FLAG_RAW* flags - Removing the command and reserved_raw bytes from wilco_ec_request - Removing the mbox0 byte from wilco_ec_response - Simplifying wilco_ec_transfer() because of these changes - Gives the callers of wilco_ec_mailbox() the responsibility of exactly and consistently defining the structure of the mailbox request and response - Removing command and result from wilco_ec_message. This results in the reduction of total code, and makes it much more maintainable and understandable. Signed-off-by: Nick Crews Acked-by: Alexandre Belloni Signed-off-by: Enric Balletbo i Serra --- include/linux/platform_data/wilco-ec.h | 22 ++-------------------- 1 file changed, 2 insertions(+), 20 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/wilco-ec.h b/include/linux/platform_data/wilco-ec.h index 446473a46b88..1ff224793c99 100644 --- a/include/linux/platform_data/wilco-ec.h +++ b/include/linux/platform_data/wilco-ec.h @@ -14,10 +14,6 @@ /* Message flags for using the mailbox() interface */ #define WILCO_EC_FLAG_NO_RESPONSE BIT(0) /* EC does not respond */ #define WILCO_EC_FLAG_EXTENDED_DATA BIT(1) /* EC returns 256 data bytes */ -#define WILCO_EC_FLAG_RAW_REQUEST BIT(2) /* Do not trim request data */ -#define WILCO_EC_FLAG_RAW_RESPONSE BIT(3) /* Do not trim response data */ -#define WILCO_EC_FLAG_RAW (WILCO_EC_FLAG_RAW_REQUEST | \ - WILCO_EC_FLAG_RAW_RESPONSE) /* Normal commands have a maximum 32 bytes of data */ #define EC_MAILBOX_DATA_SIZE 32 @@ -56,10 +52,7 @@ struct wilco_ec_device { * @mailbox_id: Mailbox identifier, specifies the command set. * @mailbox_version: Mailbox interface version %EC_MAILBOX_VERSION * @reserved: Set to zero. - * @data_size: Length of request, data + last 2 bytes of the header. - * @command: Mailbox command code, unique for each mailbox_id set. - * @reserved_raw: Set to zero for most commands, but is used by - * some command types and for raw commands. + * @data_size: Length of following data. */ struct wilco_ec_request { u8 struct_version; @@ -68,8 +61,6 @@ struct wilco_ec_request { u8 mailbox_version; u8 reserved; u16 data_size; - u8 command; - u8 reserved_raw; } __packed; /** @@ -79,8 +70,6 @@ struct wilco_ec_request { * @result: Result code from the EC. Non-zero indicates an error. * @data_size: Length of the response data buffer. * @reserved: Set to zero. - * @mbox0: EC returned data at offset 0 is unused (always 0) so this byte - * is treated as part of the header instead of the data. * @data: Response data buffer. Max size is %EC_MAILBOX_DATA_SIZE_EXTENDED. */ struct wilco_ec_response { @@ -89,7 +78,6 @@ struct wilco_ec_response { u16 result; u16 data_size; u8 reserved[2]; - u8 mbox0; u8 data[0]; } __packed; @@ -111,21 +99,15 @@ enum wilco_ec_msg_type { * struct wilco_ec_message - Request and response message. * @type: Mailbox message type. * @flags: Message flags, e.g. %WILCO_EC_FLAG_NO_RESPONSE. - * @command: Mailbox command code. - * @result: Result code from the EC. Non-zero indicates an error. * @request_size: Number of bytes to send to the EC. * @request_data: Buffer containing the request data. - * @response_size: Number of bytes expected from the EC. - * This is 32 by default and 256 if the flag - * is set for %WILCO_EC_FLAG_EXTENDED_DATA + * @response_size: Number of bytes to read from EC. * @response_data: Buffer containing the response data, should be * response_size bytes and allocated by caller. */ struct wilco_ec_message { enum wilco_ec_msg_type type; u8 flags; - u8 command; - u8 result; size_t request_size; void *request_data; size_t response_size; -- cgit v1.2.3 From 2d87a0674bd60d855e4008e2d84f5b23d7cb9b7d Mon Sep 17 00:00:00 2001 From: Ondrej Mosnacek Date: Wed, 10 Apr 2019 11:14:19 +0200 Subject: timekeeping: Audit clock adjustments Emit an audit record whenever the system clock is changed (i.e. shifted by a non-zero offset) by a syscall from userspace. The syscalls than can (at the time of writing) trigger such record are: - settimeofday(2), stime(2), clock_settime(2) -- via do_settimeofday64() - adjtimex(2), clock_adjtime(2) -- via do_adjtimex() The new records have type AUDIT_TIME_INJOFFSET and contain the following fields: - sec -- the 'seconds' part of the offset - nsec -- the 'nanoseconds' part of the offset Example record (time was shifted backwards by ~15.875 seconds): type=TIME_INJOFFSET msg=audit(1530616049.652:13): sec=-16 nsec=124887145 The records of this type will be associated with the corresponding syscall records. Signed-off-by: Ondrej Mosnacek Reviewed-by: Richard Guy Briggs Reviewed-by: Thomas Gleixner [PM: fixed a line width problem in __audit_tk_injoffset()] Signed-off-by: Paul Moore --- include/linux/audit.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/linux') diff --git a/include/linux/audit.h b/include/linux/audit.h index 1e69d9fe16da..2c62c0468888 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -365,6 +365,7 @@ extern void __audit_log_capset(const struct cred *new, const struct cred *old); extern void __audit_mmap_fd(int fd, int flags); extern void __audit_log_kern_module(char *name); extern void __audit_fanotify(unsigned int response); +extern void __audit_tk_injoffset(struct timespec64 offset); static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp) { @@ -467,6 +468,16 @@ static inline void audit_fanotify(unsigned int response) __audit_fanotify(response); } +static inline void audit_tk_injoffset(struct timespec64 offset) +{ + /* ignore no-op events */ + if (offset.tv_sec == 0 && offset.tv_nsec == 0) + return; + + if (!audit_dummy_context()) + __audit_tk_injoffset(offset); +} + extern int audit_n_rules; extern int audit_signals; #else /* CONFIG_AUDITSYSCALL */ @@ -580,6 +591,9 @@ static inline void audit_log_kern_module(char *name) static inline void audit_fanotify(unsigned int response) { } +static inline void audit_tk_injoffset(struct timespec64 offset) +{ } + static inline void audit_ptrace(struct task_struct *t) { } #define audit_n_rules 0 -- cgit v1.2.3 From 7e8eda734d30de81d06a949c9bf9853c445ede4e Mon Sep 17 00:00:00 2001 From: Ondrej Mosnacek Date: Wed, 10 Apr 2019 11:14:20 +0200 Subject: ntp: Audit NTP parameters adjustment Emit an audit record every time selected NTP parameters are modified from userspace (via adjtimex(2) or clock_adjtime(2)). These parameters may be used to indirectly change system clock, and thus their modifications should be audited. Such events will now generate records of type AUDIT_TIME_ADJNTPVAL containing the following fields: - op -- which value was adjusted: - offset -- corresponding to the time_offset variable - freq -- corresponding to the time_freq variable - status -- corresponding to the time_status variable - adjust -- corresponding to the time_adjust variable - tick -- corresponding to the tick_usec variable - tai -- corresponding to the timekeeping's TAI offset - old -- the old value - new -- the new value Example records: type=TIME_ADJNTPVAL msg=audit(1530616044.507:7): op=status old=64 new=8256 type=TIME_ADJNTPVAL msg=audit(1530616044.511:11): op=freq old=0 new=49180377088000 The records of this type will be associated with the corresponding syscall records. An overview of parameter changes that can be done via do_adjtimex() (based on information from Miroslav Lichvar) and whether they are audited: __timekeeping_set_tai_offset() -- sets the offset from the International Atomic Time (AUDITED) NTP variables: time_offset -- can adjust the clock by up to 0.5 seconds per call and also speed it up or slow down by up to about 0.05% (43 seconds per day) (AUDITED) time_freq -- can speed up or slow down by up to about 0.05% (AUDITED) time_status -- can insert/delete leap seconds and it also enables/ disables synchronization of the hardware real-time clock (AUDITED) time_maxerror, time_esterror -- change error estimates used to inform userspace applications (NOT AUDITED) time_constant -- controls the speed of the clock adjustments that are made when time_offset is set (NOT AUDITED) time_adjust -- can temporarily speed up or slow down the clock by up to 0.05% (AUDITED) tick_usec -- a more extreme version of time_freq; can speed up or slow down the clock by up to 10% (AUDITED) Signed-off-by: Ondrej Mosnacek Reviewed-by: Richard Guy Briggs Reviewed-by: Thomas Gleixner Signed-off-by: Paul Moore --- include/linux/audit.h | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) (limited to 'include/linux') diff --git a/include/linux/audit.h b/include/linux/audit.h index 2c62c0468888..43a23e28ba23 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -86,6 +86,29 @@ struct audit_field { u32 op; }; +enum audit_ntp_type { + AUDIT_NTP_OFFSET, + AUDIT_NTP_FREQ, + AUDIT_NTP_STATUS, + AUDIT_NTP_TAI, + AUDIT_NTP_TICK, + AUDIT_NTP_ADJUST, + + AUDIT_NTP_NVALS /* count */ +}; + +#ifdef CONFIG_AUDITSYSCALL +struct audit_ntp_val { + long long oldval, newval; +}; + +struct audit_ntp_data { + struct audit_ntp_val vals[AUDIT_NTP_NVALS]; +}; +#else +struct audit_ntp_data {}; +#endif + extern int is_audit_feature_set(int which); extern int __init audit_register_class(int class, unsigned *list); @@ -366,6 +389,7 @@ extern void __audit_mmap_fd(int fd, int flags); extern void __audit_log_kern_module(char *name); extern void __audit_fanotify(unsigned int response); extern void __audit_tk_injoffset(struct timespec64 offset); +extern void __audit_ntp_log(const struct audit_ntp_data *ad); static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp) { @@ -478,6 +502,29 @@ static inline void audit_tk_injoffset(struct timespec64 offset) __audit_tk_injoffset(offset); } +static inline void audit_ntp_init(struct audit_ntp_data *ad) +{ + memset(ad, 0, sizeof(*ad)); +} + +static inline void audit_ntp_set_old(struct audit_ntp_data *ad, + enum audit_ntp_type type, long long val) +{ + ad->vals[type].oldval = val; +} + +static inline void audit_ntp_set_new(struct audit_ntp_data *ad, + enum audit_ntp_type type, long long val) +{ + ad->vals[type].newval = val; +} + +static inline void audit_ntp_log(const struct audit_ntp_data *ad) +{ + if (!audit_dummy_context()) + __audit_ntp_log(ad); +} + extern int audit_n_rules; extern int audit_signals; #else /* CONFIG_AUDITSYSCALL */ @@ -594,6 +641,20 @@ static inline void audit_fanotify(unsigned int response) static inline void audit_tk_injoffset(struct timespec64 offset) { } +static inline void audit_ntp_init(struct audit_ntp_data *ad) +{ } + +static inline void audit_ntp_set_old(struct audit_ntp_data *ad, + enum audit_ntp_type type, long long val) +{ } + +static inline void audit_ntp_set_new(struct audit_ntp_data *ad, + enum audit_ntp_type type, long long val) +{ } + +static inline void audit_ntp_log(const struct audit_ntp_data *ad) +{ } + static inline void audit_ptrace(struct task_struct *t) { } #define audit_n_rules 0 -- cgit v1.2.3 From c43a113ca2c807c3e66a5de0ec57d69803b8bc10 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Wed, 20 Mar 2019 14:58:17 +0000 Subject: hwmon: Add convience macro to define simple static sensors It takes a fair amount of boiler plate code to add new sensors, add a macro that can be used to specify simple static sensors. Signed-off-by: Charles Keepax Signed-off-by: Guenter Roeck --- include/linux/hwmon.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h index 99e0c1b0b5fb..7a8cc06a0d61 100644 --- a/include/linux/hwmon.h +++ b/include/linux/hwmon.h @@ -365,6 +365,14 @@ struct hwmon_channel_info { const u32 *config; }; +#define HWMON_CHANNEL_INFO(stype, ...) \ + (&(struct hwmon_channel_info) { \ + .type = hwmon_##stype, \ + .config = (u32 []) { \ + __VA_ARGS__, 0 \ + } \ + }) + /** * Chip configuration * @ops: Pointer to hwmon operations. -- cgit v1.2.3 From 9f00995e4eb293679597d76462fec2ce152e3500 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Mon, 15 Apr 2019 13:23:48 -0700 Subject: hwmon: Add support for samples attributes Add support for the new samples attributes to the hwmon core. Cc: Krzysztof Adamski Cc: Nicolin Chen Acked-by: Nicolin Chen Signed-off-by: Guenter Roeck --- include/linux/hwmon.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h index 7a8cc06a0d61..2b949fa501e1 100644 --- a/include/linux/hwmon.h +++ b/include/linux/hwmon.h @@ -40,6 +40,11 @@ enum hwmon_chip_attributes { hwmon_chip_register_tz, hwmon_chip_update_interval, hwmon_chip_alarms, + hwmon_chip_samples, + hwmon_chip_curr_samples, + hwmon_chip_in_samples, + hwmon_chip_power_samples, + hwmon_chip_temp_samples, }; #define HWMON_C_TEMP_RESET_HISTORY BIT(hwmon_chip_temp_reset_history) @@ -49,6 +54,11 @@ enum hwmon_chip_attributes { #define HWMON_C_REGISTER_TZ BIT(hwmon_chip_register_tz) #define HWMON_C_UPDATE_INTERVAL BIT(hwmon_chip_update_interval) #define HWMON_C_ALARMS BIT(hwmon_chip_alarms) +#define HWMON_C_SAMPLES BIT(hwmon_chip_samples) +#define HWMON_C_CURR_SAMPLES BIT(hwmon_chip_curr_samples) +#define HWMON_C_IN_SAMPLES BIT(hwmon_chip_in_samples) +#define HWMON_C_POWER_SAMPLES BIT(hwmon_chip_power_samples) +#define HWMON_C_TEMP_SAMPLES BIT(hwmon_chip_temp_samples) enum hwmon_temp_attributes { hwmon_temp_input = 0, -- cgit v1.2.3 From c68d224e5ed15605e651e2482c6ffd95915ddf58 Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Mon, 8 Apr 2019 10:32:51 -0700 Subject: perf/core: Add perf_pmu_resched() as global function This patch add perf_pmu_resched() a global function that can be called to force rescheduling of events for a given PMU. The function locks both cpuctx and task_ctx internally. This will be used by a subsequent patch. Signed-off-by: Stephane Eranian [ Simplified the calling convention. ] Signed-off-by: Peter Zijlstra (Intel) Cc: Alexander Shishkin Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Vince Weaver Cc: kan.liang@intel.com Cc: nelson.dsouza@intel.com Cc: tonyj@suse.com Link: https://lkml.kernel.org/r/20190408173252.37932-2-eranian@google.com Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 085a95e2582a..f3864e1c5569 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -888,6 +888,9 @@ extern void perf_sched_cb_dec(struct pmu *pmu); extern void perf_sched_cb_inc(struct pmu *pmu); extern int perf_event_task_disable(void); extern int perf_event_task_enable(void); + +extern void perf_pmu_resched(struct pmu *pmu); + extern int perf_event_refresh(struct perf_event *event, int refresh); extern void perf_event_update_userpage(struct perf_event *event); extern int perf_event_release_kernel(struct perf_event *event); -- cgit v1.2.3 From 63b96983a5ddfedd7daea72dbbc08ea873c54f27 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 3 Apr 2019 14:40:10 +0200 Subject: i2c: core: introduce callbacks for atomic transfers We had the request to access devices very late when interrupts are not available anymore multiple times now. Mostly to prepare shutdown or reboot. Allow adapters to specify a specific callback for this case. Note that we fall back to the generic {master|smbus}_xfer callback if this new atomic one is not present. This is intentional to preserve the previous behaviour and avoid regressions. Because there are drivers not using interrupts or because it might have worked "accidently" before. Signed-off-by: Wolfram Sang Reviewed-by Andy Shevchenko Tested-by: Stefan Lengfeld Signed-off-by: Wolfram Sang --- include/linux/i2c.h | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 758a6db864c9..03755d4c9229 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -499,9 +499,13 @@ i2c_register_board_info(int busnum, struct i2c_board_info const *info, * @master_xfer: Issue a set of i2c transactions to the given I2C adapter * defined by the msgs array, with num messages available to transfer via * the adapter specified by adap. + * @master_xfer_atomic: same as @master_xfer. Yet, only using atomic context + * so e.g. PMICs can be accessed very late before shutdown. Optional. * @smbus_xfer: Issue smbus transactions to the given I2C adapter. If this * is not present, then the bus layer will try and convert the SMBus calls * into I2C transfers instead. + * @smbus_xfer_atomic: same as @smbus_xfer. Yet, only using atomic context + * so e.g. PMICs can be accessed very late before shutdown. Optional. * @functionality: Return the flags that this algorithm/adapter pair supports * from the I2C_FUNC_* flags. * @reg_slave: Register given client to I2C slave mode of this adapter @@ -512,9 +516,9 @@ i2c_register_board_info(int busnum, struct i2c_board_info const *info, * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584 * to name two of the most common. * - * The return codes from the @master_xfer field should indicate the type of - * error code that occurred during the transfer, as documented in the kernel - * Documentation file Documentation/i2c/fault-codes. + * The return codes from the @master_xfer{_atomic} fields should indicate the + * type of error code that occurred during the transfer, as documented in the + * Kernel Documentation file Documentation/i2c/fault-codes. */ struct i2c_algorithm { /* @@ -528,9 +532,14 @@ struct i2c_algorithm { */ int (*master_xfer)(struct i2c_adapter *adap, struct i2c_msg *msgs, int num); + int (*master_xfer_atomic)(struct i2c_adapter *adap, + struct i2c_msg *msgs, int num); int (*smbus_xfer)(struct i2c_adapter *adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data *data); + int (*smbus_xfer_atomic)(struct i2c_adapter *adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, union i2c_smbus_data *data); /* To determine what the adapter supports */ u32 (*functionality)(struct i2c_adapter *adap); -- cgit v1.2.3 From 8927fbf481248954ca1fc5e652171936b94905ac Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 3 Apr 2019 14:40:18 +0200 Subject: i2c: algo: bit: add flag to whitelist atomic transfers Use the new xfer_atomic callback to check a newly introduced flag to whitelist atomic transfers. This will report configurations which worked accidently. Signed-off-by: Wolfram Sang Signed-off-by: Wolfram Sang --- include/linux/i2c-algo-bit.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/i2c-algo-bit.h b/include/linux/i2c-algo-bit.h index 69045df78e2d..7fd5575a368f 100644 --- a/include/linux/i2c-algo-bit.h +++ b/include/linux/i2c-algo-bit.h @@ -33,6 +33,7 @@ struct i2c_algo_bit_data { minimum 5 us for standard-mode I2C and SMBus, maximum 50 us for SMBus */ int timeout; /* in jiffies */ + bool can_do_atomic; /* callbacks don't sleep, we can be atomic */ }; int i2c_bit_add_bus(struct i2c_adapter *); -- cgit v1.2.3 From 5e498abf14858945f1249d9cc4ff1e8715a307e3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 15 Apr 2019 14:46:34 +0200 Subject: dma-buf: explicitely note that dma-fence-chains use 64bit seqno MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Instead of checking the upper values of the sequence number use an explicit field in the dma_fence_ops structure to note if a sequence should be 32bit or 64bit. Signed-off-by: Christian König Reviewed-by: Lionel Landwerlin Link: https://patchwork.freedesktop.org/patch/299655/ --- include/linux/dma-fence.h | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h index 6b788467b2e3..974717d6ac0c 100644 --- a/include/linux/dma-fence.h +++ b/include/linux/dma-fence.h @@ -111,6 +111,14 @@ struct dma_fence_cb { * */ struct dma_fence_ops { + /** + * @use_64bit_seqno: + * + * True if this dma_fence implementation uses 64bit seqno, false + * otherwise. + */ + bool use_64bit_seqno; + /** * @get_driver_name: * @@ -410,18 +418,19 @@ dma_fence_is_signaled(struct dma_fence *fence) * __dma_fence_is_later - return if f1 is chronologically later than f2 * @f1: the first fence's seqno * @f2: the second fence's seqno from the same context + * @ops: dma_fence_ops associated with the seqno * * Returns true if f1 is chronologically later than f2. Both fences must be * from the same context, since a seqno is not common across contexts. */ -static inline bool __dma_fence_is_later(u64 f1, u64 f2) +static inline bool __dma_fence_is_later(u64 f1, u64 f2, + const struct dma_fence_ops *ops) { /* This is for backward compatibility with drivers which can only handle - * 32bit sequence numbers. Use a 64bit compare when any of the higher - * bits are none zero, otherwise use a 32bit compare with wrap around - * handling. + * 32bit sequence numbers. Use a 64bit compare when the driver says to + * do so. */ - if (upper_32_bits(f1) || upper_32_bits(f2)) + if (ops->use_64bit_seqno) return f1 > f2; return (int)(lower_32_bits(f1) - lower_32_bits(f2)) > 0; @@ -441,7 +450,7 @@ static inline bool dma_fence_is_later(struct dma_fence *f1, if (WARN_ON(f1->context != f2->context)) return false; - return __dma_fence_is_later(f1->seqno, f2->seqno); + return __dma_fence_is_later(f1->seqno, f2->seqno, f1->ops); } /** -- cgit v1.2.3 From 3b6bddda2fb68e0f784f5e5fabe91ba3f7399ef5 Mon Sep 17 00:00:00 2001 From: Thomas Bogendoerfer Date: Tue, 16 Apr 2019 11:34:04 +0200 Subject: rtc: ds1685: use threaded interrupt Handling of extended interrupts (kickstart, wake-up, ram-clear) was moved off to a work queue, but the interrupts aren't acknowledged in the interrupt handler. This leads to a deadlock, if driver is used with interrupts. To fix this we use a threaded interrupt, get rid of the work queue and do locking with just the rtc mutex lock. Fixes: aaaf5fbf56f1 ("rtc: add driver for DS1685 family of real time clocks") Signed-off-by: Thomas Bogendoerfer Signed-off-by: Alexandre Belloni --- include/linux/rtc/ds1685.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rtc/ds1685.h b/include/linux/rtc/ds1685.h index e6337a56d741..a00b332c505f 100644 --- a/include/linux/rtc/ds1685.h +++ b/include/linux/rtc/ds1685.h @@ -48,8 +48,6 @@ struct ds1685_priv { u32 regstep; resource_size_t baseaddr; size_t size; - spinlock_t lock; - struct work_struct work; int irq_num; bool bcd_mode; bool no_irq; -- cgit v1.2.3 From cd0265fcd2eae9004c68ef2123a9dac0dc5a666a Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Mon, 18 Mar 2019 10:23:33 -0700 Subject: fscrypt: drop inode argument from fscrypt_get_ctx() The only reason the inode is being passed to fscrypt_get_ctx() is to verify that the encryption key is available. However, all callers already ensure this because if we get as far as trying to do I/O to an encrypted file without the key, there's already a bug. Therefore, remove this unnecessary argument. Signed-off-by: Eric Biggers Signed-off-by: Theodore Ts'o --- include/linux/fscrypt.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h index e5194fc3983e..6cf8a34523ff 100644 --- a/include/linux/fscrypt.h +++ b/include/linux/fscrypt.h @@ -90,7 +90,7 @@ static inline bool fscrypt_dummy_context_enabled(struct inode *inode) /* crypto.c */ extern void fscrypt_enqueue_decrypt_work(struct work_struct *); -extern struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *, gfp_t); +extern struct fscrypt_ctx *fscrypt_get_ctx(gfp_t); extern void fscrypt_release_ctx(struct fscrypt_ctx *); extern struct page *fscrypt_encrypt_page(const struct inode *, struct page *, unsigned int, unsigned int, @@ -247,8 +247,7 @@ static inline void fscrypt_enqueue_decrypt_work(struct work_struct *work) { } -static inline struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode, - gfp_t gfp_flags) +static inline struct fscrypt_ctx *fscrypt_get_ctx(gfp_t gfp_flags) { return ERR_PTR(-EOPNOTSUPP); } -- cgit v1.2.3 From e37a784d8b6a1e726de5ddc7b4809c086a08db09 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Thu, 11 Apr 2019 14:32:15 -0700 Subject: fscrypt: use READ_ONCE() to access ->i_crypt_info ->i_crypt_info starts out NULL and may later be locklessly set to a non-NULL value by the cmpxchg() in fscrypt_get_encryption_info(). But ->i_crypt_info is used directly, which technically is incorrect. It's a data race, and it doesn't include the data dependency barrier needed to safely dereference the pointer on at least one architecture. Fix this by using READ_ONCE() instead. Note: we don't need to use smp_load_acquire(), since dereferencing the pointer only requires a data dependency barrier, which is already included in READ_ONCE(). We also don't need READ_ONCE() in places where ->i_crypt_info is unconditionally dereferenced, since it must have already been checked. Also downgrade the cmpxchg() to cmpxchg_release(), since RELEASE semantics are sufficient on the write side. Signed-off-by: Eric Biggers Signed-off-by: Theodore Ts'o --- include/linux/fscrypt.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h index 6cf8a34523ff..ec8ab7108599 100644 --- a/include/linux/fscrypt.h +++ b/include/linux/fscrypt.h @@ -79,7 +79,8 @@ struct fscrypt_ctx { static inline bool fscrypt_has_encryption_key(const struct inode *inode) { - return (inode->i_crypt_info != NULL); + /* pairs with cmpxchg_release() in fscrypt_get_encryption_info() */ + return READ_ONCE(inode->i_crypt_info) != NULL; } static inline bool fscrypt_dummy_context_enabled(struct inode *inode) -- cgit v1.2.3 From fec06b2bc436d1cbc3482becd40f656d46cd22b7 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Fri, 5 Apr 2019 16:38:30 +0530 Subject: phy: core: Add *release* phy_ops invoked when the consumer relinquishes PHY Add a new phy_ops *release* invoked when the consumer relinquishes the PHY using phy_put/devm_phy_put. The initializations done by the PHY driver in of_xlate call back can be can be cleaned up here. Signed-off-by: Kishon Vijay Abraham I --- include/linux/phy/phy.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index 3f350e2749fe..ef13aea1d370 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -64,6 +64,7 @@ union phy_configure_opts { * @set_mode: set the mode of the phy * @reset: resetting the phy * @calibrate: calibrate the phy + * @release: ops to be performed while the consumer relinquishes the PHY * @owner: the module owner containing the ops */ struct phy_ops { @@ -105,6 +106,7 @@ struct phy_ops { union phy_configure_opts *opts); int (*reset)(struct phy *phy); int (*calibrate)(struct phy *phy); + void (*release)(struct phy *phy); struct module *owner; }; -- cgit v1.2.3 From 6cc248684d3d23bbd073ae2fa73d3416c0558909 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 20 Mar 2019 11:39:09 -0700 Subject: fscrypt: clean up and improve dentry revalidation Make various improvements to fscrypt dentry revalidation: - Don't try to handle the case where the per-directory key is removed, as this can't happen without the inode (and dentries) being evicted. - Flag ciphertext dentries rather than plaintext dentries, since it's ciphertext dentries that need the special handling. - Avoid doing unnecessary work for non-ciphertext dentries. - When revalidating ciphertext dentries, try to set up the directory's i_crypt_info to make sure the key is really still absent, rather than invalidating all negative dentries as the previous code did. An old comment suggested we can't do this for locking reasons, but AFAICT this comment was outdated and it actually works fine. Signed-off-by: Eric Biggers Signed-off-by: Theodore Ts'o --- include/linux/dcache.h | 2 +- include/linux/fscrypt.h | 6 ++---- 2 files changed, 3 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 60996e64c579..9b3b75d3bd21 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -212,7 +212,7 @@ struct dentry_operations { #define DCACHE_MAY_FREE 0x00800000 #define DCACHE_FALLTHRU 0x01000000 /* Fall through to lower layer */ -#define DCACHE_ENCRYPTED_WITH_KEY 0x02000000 /* dir is encrypted with a valid key */ +#define DCACHE_ENCRYPTED_NAME 0x02000000 /* Encrypted name (dir key was unavailable) */ #define DCACHE_OP_REAL 0x04000000 #define DCACHE_PAR_LOOKUP 0x10000000 /* being looked up (with parent locked shared) */ diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h index ec8ab7108599..09e368a515d1 100644 --- a/include/linux/fscrypt.h +++ b/include/linux/fscrypt.h @@ -545,10 +545,8 @@ static inline int fscrypt_prepare_rename(struct inode *old_dir, * filenames are presented in encrypted form. Therefore, we'll try to set up * the directory's encryption key, but even without it the lookup can continue. * - * To allow invalidating stale dentries if the directory's encryption key is - * added later, we also install a custom ->d_revalidate() method and use the - * DCACHE_ENCRYPTED_WITH_KEY flag to indicate whether a given dentry is a - * plaintext name (flag set) or a ciphertext name (flag cleared). + * This also installs a custom ->d_revalidate() method which will invalidate the + * dentry if it was created without the key and the key is later added. * * Return: 0 on success, -errno if a problem occurred while setting up the * encryption key -- cgit v1.2.3 From 968dd6d0c6d6b6a989c6ddb9e2584a031b83e7b5 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 20 Mar 2019 11:39:10 -0700 Subject: fscrypt: fix race allowing rename() and link() of ciphertext dentries Close some race conditions where fscrypt allowed rename() and link() on ciphertext dentries that had been looked up just prior to the key being concurrently added. It's better to return -ENOKEY in this case. This avoids doing the nonsensical thing of encrypting the names a second time when searching for the actual on-disk dir entries. It also guarantees that DCACHE_ENCRYPTED_NAME dentries are never rename()d, so the dcache won't have support all possible combinations of moving DCACHE_ENCRYPTED_NAME around during __d_move(). Signed-off-by: Eric Biggers Signed-off-by: Theodore Ts'o --- include/linux/fscrypt.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h index 09e368a515d1..855f743c226e 100644 --- a/include/linux/fscrypt.h +++ b/include/linux/fscrypt.h @@ -215,7 +215,8 @@ extern int fscrypt_zeroout_range(const struct inode *, pgoff_t, sector_t, /* hooks.c */ extern int fscrypt_file_open(struct inode *inode, struct file *filp); -extern int __fscrypt_prepare_link(struct inode *inode, struct inode *dir); +extern int __fscrypt_prepare_link(struct inode *inode, struct inode *dir, + struct dentry *dentry); extern int __fscrypt_prepare_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, @@ -401,8 +402,8 @@ static inline int fscrypt_file_open(struct inode *inode, struct file *filp) return 0; } -static inline int __fscrypt_prepare_link(struct inode *inode, - struct inode *dir) +static inline int __fscrypt_prepare_link(struct inode *inode, struct inode *dir, + struct dentry *dentry) { return -EOPNOTSUPP; } @@ -497,7 +498,7 @@ static inline int fscrypt_prepare_link(struct dentry *old_dentry, struct dentry *dentry) { if (IS_ENCRYPTED(dir)) - return __fscrypt_prepare_link(d_inode(old_dentry), dir); + return __fscrypt_prepare_link(d_inode(old_dentry), dir, dentry); return 0; } -- cgit v1.2.3 From 0bf3d5c1604ecbbd4e49e9f5b3c79152b87adb0d Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 20 Mar 2019 11:39:11 -0700 Subject: fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory Make __d_move() clear DCACHE_ENCRYPTED_NAME on the source dentry. This is needed for when d_splice_alias() moves a directory's encrypted alias to its decrypted alias as a result of the encryption key being added. Otherwise, the decrypted alias will incorrectly be invalidated on the next lookup, causing problems such as unmounting a mount the user just mount()ed there. Note that we don't have to support arbitrary moves of this flag because fscrypt doesn't allow dentries with DCACHE_ENCRYPTED_NAME to be the source or target of a rename(). Fixes: 28b4c263961c ("ext4 crypto: revalidate dentry after adding or removing the key") Reported-by: Sarthak Kukreti Signed-off-by: Eric Biggers Signed-off-by: Theodore Ts'o --- include/linux/fscrypt.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/linux') diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h index 855f743c226e..76c518f1e4c7 100644 --- a/include/linux/fscrypt.h +++ b/include/linux/fscrypt.h @@ -89,6 +89,18 @@ static inline bool fscrypt_dummy_context_enabled(struct inode *inode) inode->i_sb->s_cop->dummy_context(inode); } +/* + * When d_splice_alias() moves a directory's encrypted alias to its decrypted + * alias as a result of the encryption key being added, DCACHE_ENCRYPTED_NAME + * must be cleared. Note that we don't have to support arbitrary moves of this + * flag because fscrypt doesn't allow encrypted aliases to be the source or + * target of a rename(). + */ +static inline void fscrypt_handle_d_move(struct dentry *dentry) +{ + dentry->d_flags &= ~DCACHE_ENCRYPTED_NAME; +} + /* crypto.c */ extern void fscrypt_enqueue_decrypt_work(struct work_struct *); extern struct fscrypt_ctx *fscrypt_get_ctx(gfp_t); @@ -244,6 +256,10 @@ static inline bool fscrypt_dummy_context_enabled(struct inode *inode) return false; } +static inline void fscrypt_handle_d_move(struct dentry *dentry) +{ +} + /* crypto.c */ static inline void fscrypt_enqueue_decrypt_work(struct work_struct *work) { -- cgit v1.2.3 From b01531db6cec2aa330dbc91bfbfaaef4a0d387a4 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 20 Mar 2019 11:39:13 -0700 Subject: fscrypt: fix race where ->lookup() marks plaintext dentry as ciphertext ->lookup() in an encrypted directory begins as follows: 1. fscrypt_prepare_lookup(): a. Try to load the directory's encryption key. b. If the key is unavailable, mark the dentry as a ciphertext name via d_flags. 2. fscrypt_setup_filename(): a. Try to load the directory's encryption key. b. If the key is available, encrypt the name (treated as a plaintext name) to get the on-disk name. Otherwise decode the name (treated as a ciphertext name) to get the on-disk name. But if the key is concurrently added, it may be found at (2a) but not at (1a). In this case, the dentry will be wrongly marked as a ciphertext name even though it was actually treated as plaintext. This will cause the dentry to be wrongly invalidated on the next lookup, potentially causing problems. For example, if the racy ->lookup() was part of sys_mount(), then the new mount will be detached when anything tries to access it. This is despite the mountpoint having a plaintext path, which should remain valid now that the key was added. Of course, this is only possible if there's a userspace race. Still, the additional kernel-side race is confusing and unexpected. Close the kernel-side race by changing fscrypt_prepare_lookup() to also set the on-disk filename (step 2b), consistent with the d_flags update. Fixes: 28b4c263961c ("ext4 crypto: revalidate dentry after adding or removing the key") Signed-off-by: Eric Biggers Signed-off-by: Theodore Ts'o --- include/linux/fscrypt.h | 30 ++++++++++++++++++++---------- 1 file changed, 20 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h index 76c518f1e4c7..abe7081b6b22 100644 --- a/include/linux/fscrypt.h +++ b/include/linux/fscrypt.h @@ -33,6 +33,7 @@ struct fscrypt_name { u32 hash; u32 minor_hash; struct fscrypt_str crypto_buf; + bool is_ciphertext_name; }; #define FSTR_INIT(n, l) { .name = n, .len = l } @@ -234,7 +235,8 @@ extern int __fscrypt_prepare_rename(struct inode *old_dir, struct inode *new_dir, struct dentry *new_dentry, unsigned int flags); -extern int __fscrypt_prepare_lookup(struct inode *dir, struct dentry *dentry); +extern int __fscrypt_prepare_lookup(struct inode *dir, struct dentry *dentry, + struct fscrypt_name *fname); extern int __fscrypt_prepare_symlink(struct inode *dir, unsigned int len, unsigned int max_len, struct fscrypt_str *disk_link); @@ -347,7 +349,7 @@ static inline int fscrypt_setup_filename(struct inode *dir, if (IS_ENCRYPTED(dir)) return -EOPNOTSUPP; - memset(fname, 0, sizeof(struct fscrypt_name)); + memset(fname, 0, sizeof(*fname)); fname->usr_fname = iname; fname->disk_name.name = (unsigned char *)iname->name; fname->disk_name.len = iname->len; @@ -434,7 +436,8 @@ static inline int __fscrypt_prepare_rename(struct inode *old_dir, } static inline int __fscrypt_prepare_lookup(struct inode *dir, - struct dentry *dentry) + struct dentry *dentry, + struct fscrypt_name *fname) { return -EOPNOTSUPP; } @@ -555,25 +558,32 @@ static inline int fscrypt_prepare_rename(struct inode *old_dir, * fscrypt_prepare_lookup - prepare to lookup a name in a possibly-encrypted directory * @dir: directory being searched * @dentry: filename being looked up - * @flags: lookup flags + * @fname: (output) the name to use to search the on-disk directory * - * Prepare for ->lookup() in a directory which may be encrypted. Lookups can be - * done with or without the directory's encryption key; without the key, + * Prepare for ->lookup() in a directory which may be encrypted by determining + * the name that will actually be used to search the directory on-disk. Lookups + * can be done with or without the directory's encryption key; without the key, * filenames are presented in encrypted form. Therefore, we'll try to set up * the directory's encryption key, but even without it the lookup can continue. * * This also installs a custom ->d_revalidate() method which will invalidate the * dentry if it was created without the key and the key is later added. * - * Return: 0 on success, -errno if a problem occurred while setting up the - * encryption key + * Return: 0 on success; -ENOENT if key is unavailable but the filename isn't a + * correctly formed encoded ciphertext name, so a negative dentry should be + * created; or another -errno code. */ static inline int fscrypt_prepare_lookup(struct inode *dir, struct dentry *dentry, - unsigned int flags) + struct fscrypt_name *fname) { if (IS_ENCRYPTED(dir)) - return __fscrypt_prepare_lookup(dir, dentry); + return __fscrypt_prepare_lookup(dir, dentry, fname); + + memset(fname, 0, sizeof(*fname)); + fname->usr_fname = &dentry->d_name; + fname->disk_name.name = (unsigned char *)dentry->d_name.name; + fname->disk_name.len = dentry->d_name.len; return 0; } -- cgit v1.2.3 From 4cb5d9eca143f7fbf8cc457be19a91914f978a00 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Wed, 10 Apr 2019 10:47:28 +0200 Subject: firmware: Move Trusted Foundations support Move the Trusted Foundations support out of arch/arm/firmware and into drivers/firmware where most other firmware support implementations are located. Signed-off-by: Thierry Reding --- include/linux/firmware/trusted_foundations.h | 96 ++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 include/linux/firmware/trusted_foundations.h (limited to 'include/linux') diff --git a/include/linux/firmware/trusted_foundations.h b/include/linux/firmware/trusted_foundations.h new file mode 100644 index 000000000000..4064e7c74715 --- /dev/null +++ b/include/linux/firmware/trusted_foundations.h @@ -0,0 +1,96 @@ +/* + * Copyright (c) 2013, NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +/* + * Support for the Trusted Foundations secure monitor. + * + * Trusted Foundation comes active on some ARM consumer devices (most + * Tegra-based devices sold on the market are concerned). Such devices can only + * perform some basic operations, like setting the CPU reset vector, through + * SMC calls to the secure monitor. The calls are completely specific to + * Trusted Foundations, and do *not* follow the SMC calling convention or the + * PSCI standard. + */ + +#ifndef __FIRMWARE_TRUSTED_FOUNDATIONS_H +#define __FIRMWARE_TRUSTED_FOUNDATIONS_H + +#include +#include +#include +#include +#include +#include + +#include +#include + +#define TF_PM_MODE_LP0 0 +#define TF_PM_MODE_LP1 1 +#define TF_PM_MODE_LP1_NO_MC_CLK 2 +#define TF_PM_MODE_LP2 3 +#define TF_PM_MODE_LP2_NOFLUSH_L2 4 + +struct trusted_foundations_platform_data { + unsigned int version_major; + unsigned int version_minor; +}; + +#if IS_ENABLED(CONFIG_TRUSTED_FOUNDATIONS) + +void register_trusted_foundations(struct trusted_foundations_platform_data *pd); +void of_register_trusted_foundations(void); +bool trusted_foundations_registered(void); + +#else /* CONFIG_TRUSTED_FOUNDATIONS */ +static inline void tf_dummy_write_sec(unsigned long val, unsigned int reg) +{ +} + +static inline void register_trusted_foundations( + struct trusted_foundations_platform_data *pd) +{ + /* + * If the system requires TF and we cannot provide it, continue booting + * but disable features that cannot be provided. + */ + pr_err("No support for Trusted Foundations, continuing in degraded mode.\n"); + pr_err("Secondary processors as well as CPU PM will be disabled.\n"); +#if IS_ENABLED(CONFIG_CACHE_L2X0) + pr_err("L2X0 cache will be kept disabled.\n"); + outer_cache.write_sec = tf_dummy_write_sec; +#endif +#if IS_ENABLED(CONFIG_SMP) + setup_max_cpus = 0; +#endif + cpu_idle_poll_ctrl(true); +} + +static inline void of_register_trusted_foundations(void) +{ + /* + * If we find the target should enable TF but does not support it, + * fail as the system won't be able to do much anyway + */ + if (of_find_compatible_node(NULL, NULL, "tlm,trusted-foundations")) + register_trusted_foundations(NULL); +} + +static inline bool trusted_foundations_registered(void) +{ + return false; +} +#endif /* CONFIG_TRUSTED_FOUNDATIONS */ + +#endif -- cgit v1.2.3 From 2c58d548f5706d085c4b009f6abb945220460632 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 10 Apr 2019 13:21:15 -0700 Subject: fscrypt: cache decrypted symlink target in ->i_link Path lookups that traverse encrypted symlink(s) are very slow because each encrypted symlink needs to be decrypted each time it's followed. This also involves dropping out of rcu-walk mode. Make encrypted symlinks faster by caching the decrypted symlink target in ->i_link. The first call to fscrypt_get_symlink() sets it. Then, the existing VFS path lookup code uses the non-NULL ->i_link to take the fast path where ->get_link() isn't called, and lookups in rcu-walk mode remain in rcu-walk mode. Also set ->i_link immediately when a new encrypted symlink is created. To safely free the symlink target after an RCU grace period has elapsed, introduce a new function fscrypt_free_inode(), and make the relevant filesystems call it just before actually freeing the inode. Cc: Al Viro Signed-off-by: Eric Biggers Signed-off-by: Theodore Ts'o --- include/linux/fscrypt.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h index abe7081b6b22..28c74e0a7231 100644 --- a/include/linux/fscrypt.h +++ b/include/linux/fscrypt.h @@ -128,6 +128,7 @@ extern int fscrypt_inherit_context(struct inode *, struct inode *, /* keyinfo.c */ extern int fscrypt_get_encryption_info(struct inode *); extern void fscrypt_put_encryption_info(struct inode *); +extern void fscrypt_free_inode(struct inode *); /* fname.c */ extern int fscrypt_setup_filename(struct inode *, const struct qstr *, @@ -341,6 +342,10 @@ static inline void fscrypt_put_encryption_info(struct inode *inode) return; } +static inline void fscrypt_free_inode(struct inode *inode) +{ +} + /* fname.c */ static inline int fscrypt_setup_filename(struct inode *dir, const struct qstr *iname, -- cgit v1.2.3 From 7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 17 Apr 2019 06:46:29 -0300 Subject: docs: hwmon: Add an index file and rename docs to *.rst Now that all files were converted to ReST format, rename them and add an index. Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Guenter Roeck --- include/linux/platform_data/ads7828.h | 2 +- include/linux/platform_data/ds620.h | 2 +- include/linux/platform_data/ina2xx.h | 2 +- include/linux/platform_data/max197.h | 2 +- include/linux/platform_data/ntc_thermistor.h | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/ads7828.h b/include/linux/platform_data/ads7828.h index 3245f45f9d77..a3370a007702 100644 --- a/include/linux/platform_data/ads7828.h +++ b/include/linux/platform_data/ads7828.h @@ -4,7 +4,7 @@ * Copyright (c) 2012 Savoir-faire Linux Inc. * Vivien Didelot * - * For further information, see the Documentation/hwmon/ads7828 file. + * For further information, see the Documentation/hwmon/ads7828.rst file. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as diff --git a/include/linux/platform_data/ds620.h b/include/linux/platform_data/ds620.h index 6ef58bb77e46..f0ce22a78bb8 100644 --- a/include/linux/platform_data/ds620.h +++ b/include/linux/platform_data/ds620.h @@ -14,7 +14,7 @@ struct ds620_platform_data { * 1 = PO_LOW * 2 = PO_HIGH * - * (see Documentation/hwmon/ds620) + * (see Documentation/hwmon/ds620.rst) */ int pomode; }; diff --git a/include/linux/platform_data/ina2xx.h b/include/linux/platform_data/ina2xx.h index 9f0aa1b48c78..dde59fd3590f 100644 --- a/include/linux/platform_data/ina2xx.h +++ b/include/linux/platform_data/ina2xx.h @@ -7,7 +7,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * - * For further information, see the Documentation/hwmon/ina2xx file. + * For further information, see the Documentation/hwmon/ina2xx.rst file. */ /** diff --git a/include/linux/platform_data/max197.h b/include/linux/platform_data/max197.h index 8da8f94ee15c..2bbd0919bc89 100644 --- a/include/linux/platform_data/max197.h +++ b/include/linux/platform_data/max197.h @@ -8,7 +8,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * - * For further information, see the Documentation/hwmon/max197 file. + * For further information, see the Documentation/hwmon/max197.rst file. */ #ifndef _PDATA_MAX197_H diff --git a/include/linux/platform_data/ntc_thermistor.h b/include/linux/platform_data/ntc_thermistor.h index ee03d429742b..5fa115d3ea4b 100644 --- a/include/linux/platform_data/ntc_thermistor.h +++ b/include/linux/platform_data/ntc_thermistor.h @@ -42,7 +42,7 @@ struct ntc_thermistor_platform_data { * read_uV() * * How to setup pullup_ohm, pulldown_ohm, and connect is - * described at Documentation/hwmon/ntc_thermistor + * described at Documentation/hwmon/ntc_thermistor.rst * * pullup/down_ohm: 0 for infinite / not-connected * -- cgit v1.2.3 From 98af8452945c55652de68536afdde3b520fec429 Mon Sep 17 00:00:00 2001 From: Josh Poimboeuf Date: Fri, 12 Apr 2019 15:39:28 -0500 Subject: cpu/speculation: Add 'mitigations=' cmdline option Keeping track of the number of mitigations for all the CPU speculation bugs has become overwhelming for many users. It's getting more and more complicated to decide which mitigations are needed for a given architecture. Complicating matters is the fact that each arch tends to have its own custom way to mitigate the same vulnerability. Most users fall into a few basic categories: a) they want all mitigations off; b) they want all reasonable mitigations on, with SMT enabled even if it's vulnerable; or c) they want all reasonable mitigations on, with SMT disabled if vulnerable. Define a set of curated, arch-independent options, each of which is an aggregation of existing options: - mitigations=off: Disable all mitigations. - mitigations=auto: [default] Enable all the default mitigations, but leave SMT enabled, even if it's vulnerable. - mitigations=auto,nosmt: Enable all the default mitigations, disabling SMT if needed by a mitigation. Currently, these options are placeholders which don't actually do anything. They will be fleshed out in upcoming patches. Signed-off-by: Josh Poimboeuf Signed-off-by: Thomas Gleixner Tested-by: Jiri Kosina (on x86) Reviewed-by: Jiri Kosina Cc: Borislav Petkov Cc: "H . Peter Anvin" Cc: Andy Lutomirski Cc: Peter Zijlstra Cc: Jiri Kosina Cc: Waiman Long Cc: Andrea Arcangeli Cc: Jon Masters Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.org Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: linux-s390@vger.kernel.org Cc: Catalin Marinas Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Cc: linux-arch@vger.kernel.org Cc: Greg Kroah-Hartman Cc: Tyler Hicks Cc: Linus Torvalds Cc: Randy Dunlap Cc: Steven Price Cc: Phil Auld Link: https://lkml.kernel.org/r/b07a8ef9b7c5055c3a4637c87d07c296d5016fe0.1555085500.git.jpoimboe@redhat.com --- include/linux/cpu.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 5041357d0297..2d9c6f4b78f5 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -187,4 +187,28 @@ static inline void cpu_smt_disable(bool force) { } static inline void cpu_smt_check_topology(void) { } #endif +/* + * These are used for a global "mitigations=" cmdline option for toggling + * optional CPU mitigations. + */ +enum cpu_mitigations { + CPU_MITIGATIONS_OFF, + CPU_MITIGATIONS_AUTO, + CPU_MITIGATIONS_AUTO_NOSMT, +}; + +extern enum cpu_mitigations cpu_mitigations; + +/* mitigations=off */ +static inline bool cpu_mitigations_off(void) +{ + return cpu_mitigations == CPU_MITIGATIONS_OFF; +} + +/* mitigations=auto,nosmt */ +static inline bool cpu_mitigations_auto_nosmt(void) +{ + return cpu_mitigations == CPU_MITIGATIONS_AUTO_NOSMT; +} + #endif /* _LINUX_CPU_H_ */ -- cgit v1.2.3 From 804ee5be633f051f85270ae3f4770a5fc6cd92d5 Mon Sep 17 00:00:00 2001 From: Johannes Thumshirn Date: Wed, 17 Apr 2019 10:23:56 +0200 Subject: PCI: Remove unused pci_request_region_exclusive() pci_request_region_exclusive() was introduced with commit e8de1481fd71 ("resource: allow MMIO exclusivity for device drivers") in 2.6.29 which was released 2008. It never had an in tree user since then, so after 11 years later let's remove it. Signed-off-by: Johannes Thumshirn Signed-off-by: Bjorn Helgaas --- include/linux/pci.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/pci.h b/include/linux/pci.h index 77448215ef5b..5f32275358cf 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1233,7 +1233,6 @@ int __must_check pci_request_regions(struct pci_dev *, const char *); int __must_check pci_request_regions_exclusive(struct pci_dev *, const char *); void pci_release_regions(struct pci_dev *); int __must_check pci_request_region(struct pci_dev *, int, const char *); -int __must_check pci_request_region_exclusive(struct pci_dev *, int, const char *); void pci_release_region(struct pci_dev *, int); int pci_request_selected_regions(struct pci_dev *, int, const char *); int pci_request_selected_regions_exclusive(struct pci_dev *, int, const char *); -- cgit v1.2.3 From ba8a39820d4614b2b04ac74a48d1f8de677de750 Mon Sep 17 00:00:00 2001 From: Wesley Sheng Date: Mon, 15 Apr 2019 22:41:41 +0800 Subject: switchtec: Increase PFF limit from 48 to 255 The Switchtec devices supports two PCIe Function Frameworks (PFFs) per upstream port (one for the port itself and one for the management endoint), and each PFF may have up to 255 ports. Previously the driver only supported 48 of those ports, and the SWITCHTEC_IOCTL_EVENT_SUMMARY ioctl only returned information about those 48. Increase SWITCHTEC_MAX_PFF_CSR from 48 to 255 so the driver supports all 255 possible ports. Rename SWITCHTEC_IOCTL_EVENT_SUMMARY and associated struct switchtec_ioctl_event_summary to SWITCHTEC_IOCTL_EVENT_SUMMARY_LEGACY and switchtec_ioctl_event_summary_legacy with so existing applications work unchanged, supporting up to 48 ports. Add replacement SWITCHTEC_IOCTL_EVENT_SUMMARY and struct switchtec_ioctl_event_summary that new and recompiled applications support up to 255 ports. Signed-off-by: Wesley Sheng [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas Reviewed-by: Logan Gunthorpe --- include/linux/switchtec.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/switchtec.h b/include/linux/switchtec.h index 52a079b3a9a6..0cfc34ac37fb 100644 --- a/include/linux/switchtec.h +++ b/include/linux/switchtec.h @@ -20,7 +20,7 @@ #include #define SWITCHTEC_MRPC_PAYLOAD_SIZE 1024 -#define SWITCHTEC_MAX_PFF_CSR 48 +#define SWITCHTEC_MAX_PFF_CSR 255 #define SWITCHTEC_EVENT_OCCURRED BIT(0) #define SWITCHTEC_EVENT_CLEAR BIT(0) -- cgit v1.2.3 From ba0509b6881efd0c8b26c36490cba87d8fb324c0 Mon Sep 17 00:00:00 2001 From: Jesper Dangaard Brouer Date: Fri, 12 Apr 2019 17:07:37 +0200 Subject: net: core: introduce build_skb_around The function build_skb() also have the responsibility to allocate and clear the SKB structure. Introduce a new function build_skb_around(), that moves the responsibility of allocation and clearing to the caller. This allows caller to use kmem_cache (slab/slub) bulk allocation API. Next patch use this function combined with kmem_cache_alloc_bulk. Signed-off-by: Jesper Dangaard Brouer Acked-by: Song Liu Acked-by: Eric Dumazet Signed-off-by: Alexei Starovoitov --- include/linux/skbuff.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index a06275a618f0..e81f2b0e8a83 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1042,6 +1042,8 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags, int node); struct sk_buff *__build_skb(void *data, unsigned int frag_size); struct sk_buff *build_skb(void *data, unsigned int frag_size); +struct sk_buff *build_skb_around(struct sk_buff *skb, + void *data, unsigned int frag_size); /** * alloc_skb - allocate a network buffer -- cgit v1.2.3 From 714c068228d3275da6d36f29e544f7e5ae648849 Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Wed, 6 Feb 2019 15:12:27 +0100 Subject: mtd: nand: Clarify Kconfig entry for software BCH ECC algorithm There is no point in having two distinct entries, merge them and rename the symbol for more clarity: MTD_NAND_ECC_SW_BCH Signed-off-by: Miquel Raynal --- include/linux/mtd/nand_bch.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/nand_bch.h b/include/linux/mtd/nand_bch.h index b8106651f807..a8a6909b594e 100644 --- a/include/linux/mtd/nand_bch.h +++ b/include/linux/mtd/nand_bch.h @@ -15,7 +15,7 @@ struct mtd_info; struct nand_chip; struct nand_bch_control; -#if defined(CONFIG_MTD_NAND_ECC_BCH) +#if IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_BCH) static inline int mtd_nand_has_bch(void) { return 1; } @@ -39,7 +39,7 @@ struct nand_bch_control *nand_bch_init(struct mtd_info *mtd); */ void nand_bch_free(struct nand_bch_control *nbc); -#else /* !CONFIG_MTD_NAND_ECC_BCH */ +#else /* !CONFIG_MTD_NAND_ECC_SW_BCH */ static inline int mtd_nand_has_bch(void) { return 0; } @@ -64,6 +64,6 @@ static inline struct nand_bch_control *nand_bch_init(struct mtd_info *mtd) static inline void nand_bch_free(struct nand_bch_control *nbc) {} -#endif /* CONFIG_MTD_NAND_ECC_BCH */ +#endif /* CONFIG_MTD_NAND_ECC_SW_BCH */ #endif /* __MTD_NAND_BCH_H__ */ -- cgit v1.2.3 From 7e8afca5cf1aeeec183a221c6fc07faf4cc380df Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= Date: Fri, 22 Mar 2019 00:52:41 +0100 Subject: mtd: rawnand: Fix sphinx syntax MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sphinx doesn't handle expressions in identifier references. This fixes the following warnings: ./include/linux/mtd/rawnand.h:1184: WARNING: Inline strong start-string without end-string. ./include/linux/mtd/rawnand.h:1186: WARNING: Inline strong start-string without end-string. Signed-off-by: Jonathan Neuschäfer Signed-off-by: Miquel Raynal --- include/linux/mtd/rawnand.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index c0589f82c1f8..7c0ccd3a2772 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1168,9 +1168,9 @@ static inline struct device_node *nand_get_flash_node(struct nand_chip *chip) * @name: a human-readable name of the NAND chip * @dev_id: the device ID (the second byte of the full chip ID array) * @mfr_id: manufecturer ID part of the full chip ID array (refers the same - * memory address as @id[0]) + * memory address as ``id[0]``) * @dev_id: device ID part of the full chip ID array (refers the same memory - * address as @id[1]) + * address as ``id[1]``) * @id: full device ID array * @pagesize: size of the NAND page in bytes; if 0, then the real page size (as * well as the eraseblock size) is determined from the extended NAND -- cgit v1.2.3 From f56cad5fd6cd876d0cab9d13d9df7bebf6fddf59 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 9 Apr 2019 13:53:32 +0900 Subject: mtd: rawnand: constify elements of NAND_OP_PARSER(_PATTERN) Currently, drivers are able to constify a nand_op_parser array, but not nand_op_parser_pattern and nand_op_parser_pattern_elem since they are instantiated by using the NAND_OP_PARSER(_PATTERN). Add 'const' to them in order to move more driver data from .data to .rodata section. Signed-off-by: Masahiro Yamada Reviewed-by: Boris Brezillon Signed-off-by: Miquel Raynal --- include/linux/mtd/rawnand.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 7c0ccd3a2772..39f6c62b0ede 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -806,7 +806,7 @@ struct nand_op_parser_pattern { #define NAND_OP_PARSER_PATTERN(_exec, ...) \ { \ .exec = _exec, \ - .elems = (struct nand_op_parser_pattern_elem[]) { __VA_ARGS__ }, \ + .elems = (const struct nand_op_parser_pattern_elem[]) { __VA_ARGS__ }, \ .nelems = sizeof((struct nand_op_parser_pattern_elem[]) { __VA_ARGS__ }) / \ sizeof(struct nand_op_parser_pattern_elem), \ } @@ -832,7 +832,7 @@ struct nand_op_parser { #define NAND_OP_PARSER(...) \ { \ - .patterns = (struct nand_op_parser_pattern[]) { __VA_ARGS__ }, \ + .patterns = (const struct nand_op_parser_pattern[]) { __VA_ARGS__ }, \ .npatterns = sizeof((struct nand_op_parser_pattern[]) { __VA_ARGS__ }) / \ sizeof(struct nand_op_parser_pattern), \ } -- cgit v1.2.3 From 04649ec1335f2289c230f080e52e09f7b9c95c4a Mon Sep 17 00:00:00 2001 From: Frieder Schrempf Date: Wed, 17 Apr 2019 12:36:34 +0000 Subject: mtd: rawnand: Always store info about bad block markers in chip struct The information about where the manufacturer puts the bad block markers inside the bad block and in the OOB data is stored in different places. Let's move this information to nand_chip.options and nand_chip.badblockpos. As this chip-specific information is not directly related to the bad block table (BBT), we also rename the flags to NAND_BBM_*. Signed-off-by: Frieder Schrempf Reviewed-by: Miquel Raynal Signed-off-by: Miquel Raynal --- include/linux/mtd/rawnand.h | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 39f6c62b0ede..8b3e28ef75ce 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -169,6 +169,20 @@ enum nand_ecc_algo { /* Macros to identify the above */ #define NAND_HAS_SUBPAGE_READ(chip) ((chip->options & NAND_SUBPAGE_READ)) +/* + * There are different places where the manufacturer stores the factory bad + * block markers. + * + * Position within the block: Each of these pages needs to be checked for a + * bad block marking pattern. + */ +#define NAND_BBM_SECONDPAGE 0x02000000 +#define NAND_BBM_LASTPAGE 0x04000000 + +/* Position within the OOB data of the page */ +#define NAND_BBM_POS_SMALL 5 +#define NAND_BBM_POS_LARGE 0 + /* Non chip related options */ /* This option skips the bbt scan during initialization. */ #define NAND_SKIP_BBTSCAN 0x00010000 @@ -1055,7 +1069,7 @@ struct nand_chip { int subpagesize; int onfi_timing_mode_default; - int badblockpos; + unsigned int badblockpos; int badblockbits; struct nand_id id; -- cgit v1.2.3 From bfd15c904ac584dfacfafb1e382c158f6db73d2a Mon Sep 17 00:00:00 2001 From: Frieder Schrempf Date: Wed, 17 Apr 2019 12:36:35 +0000 Subject: mtd: onenand: Store bad block marker position in chip struct The information about where the manufacturer puts the bad block markers inside the bad block and in the OOB data is stored in different places. Let's move this information to the chip struct, as we did it for rawnand. Signed-off-by: Frieder Schrempf Reviewed-by: Miquel Raynal Signed-off-by: Miquel Raynal --- include/linux/mtd/onenand.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h index 0aaa98b219a4..bfe9e10fae04 100644 --- a/include/linux/mtd/onenand.h +++ b/include/linux/mtd/onenand.h @@ -94,6 +94,7 @@ struct onenand_chip { unsigned int technology; unsigned int density_mask; unsigned int options; + unsigned int badblockpos; unsigned int erase_shift; unsigned int page_shift; @@ -188,6 +189,8 @@ struct onenand_chip { /* Check byte access in OneNAND */ #define ONENAND_CHECK_BYTE_ACCESS(addr) (addr & 0x1) +#define ONENAND_BADBLOCK_POS 0 + /* * Options bits */ -- cgit v1.2.3 From c902467cda2d927dba0d6bd2c2efc1988720b8d6 Mon Sep 17 00:00:00 2001 From: Frieder Schrempf Date: Wed, 17 Apr 2019 12:36:35 +0000 Subject: mtd: nand: Cleanup flags and fields for bad block marker position Now that we have moved the information to the chip level, let's remove all the unused flags and fields. Signed-off-by: Frieder Schrempf Reviewed-by: Miquel Raynal Signed-off-by: Miquel Raynal --- include/linux/mtd/bbm.h | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h index 3102bd754d18..010bc5544c54 100644 --- a/include/linux/mtd/bbm.h +++ b/include/linux/mtd/bbm.h @@ -93,10 +93,7 @@ struct nand_bbt_descr { #define NAND_BBT_WRITE 0x00002000 /* Read and write back block contents when writing bbt */ #define NAND_BBT_SAVECONTENT 0x00004000 -/* Search good / bad pattern on the first and the second page */ -#define NAND_BBT_SCAN2NDPAGE 0x00008000 -/* Search good / bad pattern on the last page of the eraseblock */ -#define NAND_BBT_SCANLASTPAGE 0x00010000 + /* * Use a flash based bad block table. By default, OOB identifier is saved in * OOB area. This option is passed to the default bad block table function. @@ -123,13 +120,6 @@ struct nand_bbt_descr { /* The maximum number of blocks to scan for a bbt */ #define NAND_BBT_SCAN_MAXBLOCKS 4 -/* - * Constants for oob configuration - */ -#define NAND_SMALL_BADBLOCK_POS 5 -#define NAND_LARGE_BADBLOCK_POS 0 -#define ONENAND_BADBLOCK_POS 0 - /* * Bad block scanning errors */ @@ -140,7 +130,6 @@ struct nand_bbt_descr { /** * struct bbm_info - [GENERIC] Bad Block Table data structure * @bbt_erase_shift: [INTERN] number of address bits in a bbt entry - * @badblockpos: [INTERN] position of the bad block marker in the oob area * @options: options for this descriptor * @bbt: [INTERN] bad block table pointer * @isbad_bbt: function to determine if a block is bad @@ -150,7 +139,6 @@ struct nand_bbt_descr { */ struct bbm_info { int bbt_erase_shift; - int badblockpos; int options; uint8_t *bbt; -- cgit v1.2.3 From bb5925480b13f52ad2e29ab20695c7f27e10f382 Mon Sep 17 00:00:00 2001 From: Frieder Schrempf Date: Wed, 17 Apr 2019 12:36:36 +0000 Subject: mtd: nand: Make flags for bad block marker position more granular To be able to check and set bad block markers in the first and second page of a block independently of each other, we create separate flags for both cases. Previously NAND_BBM_SECONDPAGE meant, that both, the first and the second page were used. With this patch NAND_BBM_FIRSTPAGE stands for using the first page and NAND_BBM_SECONDPAGE for using the second page. This patch is only for preparation of subsequent changes and does not implement the logic to actually handle both flags separately. Signed-off-by: Frieder Schrempf Reviewed-by: Boris Brezillon Reviewed-by: Miquel Raynal Signed-off-by: Miquel Raynal --- include/linux/mtd/rawnand.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 8b3e28ef75ce..dbfffa5bec7b 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -176,6 +176,7 @@ enum nand_ecc_algo { * Position within the block: Each of these pages needs to be checked for a * bad block marking pattern. */ +#define NAND_BBM_FIRSTPAGE 0x01000000 #define NAND_BBM_SECONDPAGE 0x02000000 #define NAND_BBM_LASTPAGE 0x04000000 -- cgit v1.2.3 From 3b4b3235ca5bf1b69ff15a269d9881b2604dd4fa Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Fri, 28 Sep 2018 16:30:16 +0300 Subject: thunderbolt: Add XDomain UUID exchange support Currently ICM has been handling XDomain UUID exchange so there was no need to have it in the driver yet. However, since now we are going to add the same capabilities to the software connection manager it needs to be handled properly. For this reason modify the driver XDomain protocol handling so that if the remote domain UUID is not filled in the core will query it first and only then start the normal property exchange flow. Signed-off-by: Mika Westerberg --- include/linux/thunderbolt.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/thunderbolt.h b/include/linux/thunderbolt.h index bf6ec83e60ee..2d7e012db03f 100644 --- a/include/linux/thunderbolt.h +++ b/include/linux/thunderbolt.h @@ -181,6 +181,8 @@ void tb_unregister_property_dir(const char *key, struct tb_property_dir *dir); * @device_name: Name of the device (or %NULL if not known) * @is_unplugged: The XDomain is unplugged * @resume: The XDomain is being resumed + * @needs_uuid: If the XDomain does not have @remote_uuid it will be + * queried first * @transmit_path: HopID which the remote end expects us to transmit * @transmit_ring: Local ring (hop) where outgoing packets are pushed * @receive_path: HopID which we expect the remote end to transmit @@ -189,6 +191,9 @@ void tb_unregister_property_dir(const char *key, struct tb_property_dir *dir); * @properties: Properties exported by the remote domain * @property_block_gen: Generation of @properties * @properties_lock: Lock protecting @properties. + * @get_uuid_work: Work used to retrieve @remote_uuid + * @uuid_retries: Number of times left @remote_uuid is requested before + * giving up * @get_properties_work: Work used to get remote domain properties * @properties_retries: Number of times left to read properties * @properties_changed_work: Work used to notify the remote domain that @@ -220,6 +225,7 @@ struct tb_xdomain { const char *device_name; bool is_unplugged; bool resume; + bool needs_uuid; u16 transmit_path; u16 transmit_ring; u16 receive_path; @@ -227,6 +233,8 @@ struct tb_xdomain { struct ida service_ids; struct tb_property_dir *properties; u32 property_block_gen; + struct delayed_work get_uuid_work; + int uuid_retries; struct delayed_work get_properties_work; int properties_retries; struct delayed_work properties_changed_work; -- cgit v1.2.3 From 3771b0fe9dfc3801eac0142d1af6ba94dee83c6c Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 25 Mar 2019 13:57:57 +0100 Subject: locking/lockdep: Avoid bogus Clang warning When lockdep is enabled, and -Wuninitialized warnings are enabled, Clang produces a silly warning for every file we compile: In file included from kernel/sched/fair.c:23: kernel/sched/sched.h:1094:15: error: variable 'cookie' is uninitialized when used here [-Werror,-Wuninitialized] rf->cookie = lockdep_pin_lock(&rq->lock); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/lockdep.h:474:60: note: expanded from macro 'lockdep_pin_lock' #define lockdep_pin_lock(l) ({ struct pin_cookie cookie; cookie; }) ^~~~~~ kernel/sched/sched.h:1094:15: note: variable 'cookie' is declared here include/linux/lockdep.h:474:34: note: expanded from macro 'lockdep_pin_lock' #define lockdep_pin_lock(l) ({ struct pin_cookie cookie; cookie; }) ^ As the 'struct pin_cookie' structure is empty in this configuration, there is no need to initialize it for correctness, but it also does not hurt to set it to an empty structure, so do that to avoid the warning. Signed-off-by: Arnd Bergmann Acked-by: Will Deacon Cc: Bart Van Assche Cc: Joel Fernandes (Google) Cc: Linus Torvalds Cc: Nathan Chancellor Cc: Nick Desaulniers Cc: Peter Zijlstra Cc: Steven Rostedt (VMware) Cc: Thomas Gleixner Cc: Waiman Long Cc: clang-built-linux@googlegroups.com Link: http://lkml.kernel.org/r/20190325125807.1437049-1-arnd@arndb.de Signed-off-by: Ingo Molnar --- include/linux/lockdep.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h index 79c3873d58ac..21725a91442b 100644 --- a/include/linux/lockdep.h +++ b/include/linux/lockdep.h @@ -471,7 +471,7 @@ struct pin_cookie { }; #define NIL_COOKIE (struct pin_cookie){ } -#define lockdep_pin_lock(l) ({ struct pin_cookie cookie; cookie; }) +#define lockdep_pin_lock(l) ({ struct pin_cookie cookie = { }; cookie; }) #define lockdep_repin_lock(l, c) do { (void)(l); (void)(c); } while (0) #define lockdep_unpin_lock(l, c) do { (void)(l); (void)(c); } while (0) -- cgit v1.2.3 From 0d7a78643f6972214e99205b364e508f8ea9598e Mon Sep 17 00:00:00 2001 From: Vitaly Chikunov Date: Thu, 11 Apr 2019 18:51:20 +0300 Subject: crypto: ecrdsa - add EC-RDSA (GOST 34.10) algorithm Add Elliptic Curve Russian Digital Signature Algorithm (GOST R 34.10-2012, RFC 7091, ISO/IEC 14888-3) is one of the Russian (and since 2018 the CIS countries) cryptographic standard algorithms (called GOST algorithms). Only signature verification is supported, with intent to be used in the IMA. Summary of the changes: * crypto/Kconfig: - EC-RDSA is added into Public-key cryptography section. * crypto/Makefile: - ecrdsa objects are added. * crypto/asymmetric_keys/x509_cert_parser.c: - Recognize EC-RDSA and Streebog OIDs. * include/linux/oid_registry.h: - EC-RDSA OIDs are added to the enum. Also, a two currently not implemented curve OIDs are added for possible extension later (to not change numbering and grouping). * crypto/ecc.c: - Kenneth MacKay copyright date is updated to 2014, because vli_mmod_slow, ecc_point_add, ecc_point_mult_shamir are based on his code from micro-ecc. - Functions needed for ecrdsa are EXPORT_SYMBOL'ed. - New functions: vli_is_negative - helper to determine sign of vli; vli_from_be64 - unpack big-endian array into vli (used for a signature); vli_from_le64 - unpack little-endian array into vli (used for a public key); vli_uadd, vli_usub - add/sub u64 value to/from vli (used for increment/decrement); mul_64_64 - optimized to use __int128 where appropriate, this speeds up point multiplication (and as a consequence signature verification) by the factor of 1.5-2; vli_umult - multiply vli by a small value (speeds up point multiplication by another factor of 1.5-2, depending on vli sizes); vli_mmod_special - module reduction for some form of Pseudo-Mersenne primes (used for the curves A); vli_mmod_special2 - module reduction for another form of Pseudo-Mersenne primes (used for the curves B); vli_mmod_barrett - module reduction using pre-computed value (used for the curve C); vli_mmod_slow - more general module reduction which is much slower (used when the modulus is subgroup order); vli_mod_mult_slow - modular multiplication; ecc_point_add - add two points; ecc_point_mult_shamir - add two points multiplied by scalars in one combined multiplication (this gives speed up by another factor 2 in compare to two separate multiplications). ecc_is_pubkey_valid_partial - additional samity check is added. - Updated vli_mmod_fast with non-strict heuristic to call optimal module reduction function depending on the prime value; - All computations for the previously defined (two NIST) curves should not unaffected. * crypto/ecc.h: - Newly exported functions are documented. * crypto/ecrdsa_defs.h - Five curves are defined. * crypto/ecrdsa.c: - Signature verification is implemented. * crypto/ecrdsa_params.asn1, crypto/ecrdsa_pub_key.asn1: - Templates for BER decoder for EC-RDSA parameters and public key. Cc: linux-integrity@vger.kernel.org Signed-off-by: Vitaly Chikunov Signed-off-by: Herbert Xu --- include/linux/oid_registry.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'include/linux') diff --git a/include/linux/oid_registry.h b/include/linux/oid_registry.h index d2fa9ca42e9a..7f30446348c4 100644 --- a/include/linux/oid_registry.h +++ b/include/linux/oid_registry.h @@ -93,6 +93,24 @@ enum OID { OID_authorityKeyIdentifier, /* 2.5.29.35 */ OID_extKeyUsage, /* 2.5.29.37 */ + /* EC-RDSA */ + OID_gostCPSignA, /* 1.2.643.2.2.35.1 */ + OID_gostCPSignB, /* 1.2.643.2.2.35.2 */ + OID_gostCPSignC, /* 1.2.643.2.2.35.3 */ + OID_gost2012PKey256, /* 1.2.643.7.1.1.1.1 */ + OID_gost2012PKey512, /* 1.2.643.7.1.1.1.2 */ + OID_gost2012Digest256, /* 1.2.643.7.1.1.2.2 */ + OID_gost2012Digest512, /* 1.2.643.7.1.1.2.3 */ + OID_gost2012Signature256, /* 1.2.643.7.1.1.3.2 */ + OID_gost2012Signature512, /* 1.2.643.7.1.1.3.3 */ + OID_gostTC26Sign256A, /* 1.2.643.7.1.2.1.1.1 */ + OID_gostTC26Sign256B, /* 1.2.643.7.1.2.1.1.2 */ + OID_gostTC26Sign256C, /* 1.2.643.7.1.2.1.1.3 */ + OID_gostTC26Sign256D, /* 1.2.643.7.1.2.1.1.4 */ + OID_gostTC26Sign512A, /* 1.2.643.7.1.2.1.2.1 */ + OID_gostTC26Sign512B, /* 1.2.643.7.1.2.1.2.2 */ + OID_gostTC26Sign512C, /* 1.2.643.7.1.2.1.2.3 */ + OID__NR }; -- cgit v1.2.3 From 0fcc2bdc8aff6e7feb3222930edb78b4b820cd3e Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Tue, 2 Apr 2019 13:30:37 +0300 Subject: device property: Add fwnode_graph_get_endpoint_by_id() fwnode_graph_get_endpoint_by_id() is intended for obtaining local endpoints by a given local port. fwnode_graph_get_endpoint_by_id() is slightly different from its OF counterpart, of_graph_get_endpoint_by_regs(): instead of using -1 as a value to indicate that a port or an endpoint number does not matter, it uses flags to look for equal or greater endpoint. The port number is always fixed. It also returns only remote endpoints that belong to an available device, a behaviour that can be turned off with a flag. Signed-off-by: Sakari Ailus [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki --- include/linux/property.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'include/linux') diff --git a/include/linux/property.h b/include/linux/property.h index 65d3420dd5d1..a29369c89e6e 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -13,6 +13,7 @@ #ifndef _LINUX_PROPERTY_H_ #define _LINUX_PROPERTY_H_ +#include #include #include @@ -304,6 +305,23 @@ struct fwnode_handle * fwnode_graph_get_remote_node(const struct fwnode_handle *fwnode, u32 port, u32 endpoint); +/* + * Fwnode lookup flags + * + * @FWNODE_GRAPH_ENDPOINT_NEXT: In the case of no exact match, look for the + * closest endpoint ID greater than the specified + * one. + * @FWNODE_GRAPH_DEVICE_DISABLED: That the device to which the remote + * endpoint of the given endpoint belongs to, + * may be disabled. + */ +#define FWNODE_GRAPH_ENDPOINT_NEXT BIT(0) +#define FWNODE_GRAPH_DEVICE_DISABLED BIT(1) + +struct fwnode_handle * +fwnode_graph_get_endpoint_by_id(const struct fwnode_handle *fwnode, + u32 port, u32 endpoint, unsigned long flags); + #define fwnode_graph_for_each_endpoint(fwnode, child) \ for (child = NULL; \ (child = fwnode_graph_get_next_endpoint(fwnode, child)); ) -- cgit v1.2.3 From ae325dcd1905925557dfdd03ae4b97e7ac6cd6a6 Mon Sep 17 00:00:00 2001 From: Nikos Tsironis Date: Sun, 17 Mar 2019 14:22:53 +0200 Subject: list: Don't use WRITE_ONCE() in hlist_add_behind() Commit 1c97be677f72b3 ("list: Use WRITE_ONCE() when adding to lists and hlists") introduced the use of WRITE_ONCE() to atomically write the list head's ->next pointer. hlist_add_behind() doesn't touch the hlist head's ->first pointer so there is no reason to use WRITE_ONCE() in this case. Co-developed-by: Ilias Tsitsimpis Signed-off-by: Nikos Tsironis Reviewed-by: Paul E. McKenney Signed-off-by: Mike Snitzer --- include/linux/list.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/list.h b/include/linux/list.h index 58aa3adf94e6..e137b98cd31a 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -754,7 +754,7 @@ static inline void hlist_add_behind(struct hlist_node *n, struct hlist_node *prev) { n->next = prev->next; - WRITE_ONCE(prev->next, n); + prev->next = n; n->pprev = &prev->next; if (n->next) -- cgit v1.2.3 From 34191ae816b04518943fb073207d259881a54315 Mon Sep 17 00:00:00 2001 From: Nikos Tsironis Date: Sun, 17 Mar 2019 14:22:54 +0200 Subject: list_bl: Add hlist_bl_add_before/behind helpers Add hlist_bl_add_before/behind helpers to add an element before/after an existing element in a bl_list. Co-developed-by: Ilias Tsitsimpis Signed-off-by: Nikos Tsironis Reviewed-by: Paul E. McKenney Signed-off-by: Mike Snitzer --- include/linux/list_bl.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'include/linux') diff --git a/include/linux/list_bl.h b/include/linux/list_bl.h index 3fc2cc57ba1b..ae1b541446c9 100644 --- a/include/linux/list_bl.h +++ b/include/linux/list_bl.h @@ -86,6 +86,32 @@ static inline void hlist_bl_add_head(struct hlist_bl_node *n, hlist_bl_set_first(h, n); } +static inline void hlist_bl_add_before(struct hlist_bl_node *n, + struct hlist_bl_node *next) +{ + struct hlist_bl_node **pprev = next->pprev; + + n->pprev = pprev; + n->next = next; + next->pprev = &n->next; + + /* pprev may be `first`, so be careful not to lose the lock bit */ + WRITE_ONCE(*pprev, + (struct hlist_bl_node *) + ((uintptr_t)n | ((uintptr_t)*pprev & LIST_BL_LOCKMASK))); +} + +static inline void hlist_bl_add_behind(struct hlist_bl_node *n, + struct hlist_bl_node *prev) +{ + n->next = prev->next; + n->pprev = &prev->next; + prev->next = n; + + if (n->next) + n->next->pprev = &n->next; +} + static inline void __hlist_bl_del(struct hlist_bl_node *n) { struct hlist_bl_node *next = n->next; -- cgit v1.2.3 From a06eaaf7913cab9dd6cb8ece4f78cfd7a802872a Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Wed, 17 Apr 2019 13:51:59 -0700 Subject: net: skb: remove unused asserts We are discouraging the use of BUG() these days, remove the unused ASSERT macros from skbuff.h. Signed-off-by: Jakub Kicinski Reviewed-by: Dirk van der Merwe Signed-off-by: David S. Miller --- include/linux/skbuff.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index a06275a618f0..e4ee92089dd6 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2100,8 +2100,6 @@ void skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page, int off, void skb_coalesce_rx_frag(struct sk_buff *skb, int i, int size, unsigned int truesize); -#define SKB_PAGE_ASSERT(skb) BUG_ON(skb_shinfo(skb)->nr_frags) -#define SKB_FRAG_ASSERT(skb) BUG_ON(skb_has_frag_list(skb)) #define SKB_LINEAR_ASSERT(skb) BUG_ON(skb_is_nonlinear(skb)) #ifdef NET_SKBUFF_DATA_USES_OFFSET -- cgit v1.2.3 From 71dd6c0dff51b5f1fef2e9dfa6f6a948aac975f3 Mon Sep 17 00:00:00 2001 From: David Bauer Date: Wed, 17 Apr 2019 23:59:21 +0200 Subject: net: phy: add support for reset-controller This commit adds support for PHY reset pins handled by a reset controller. Signed-off-by: David Bauer Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- include/linux/mdio.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mdio.h b/include/linux/mdio.h index 3e99ae3ed87f..6eaf71500ef6 100644 --- a/include/linux/mdio.h +++ b/include/linux/mdio.h @@ -40,6 +40,7 @@ struct mdio_device { int addr; int flags; struct gpio_desc *reset; + struct reset_control *reset_ctrl; unsigned int reset_assert_delay; unsigned int reset_deassert_delay; }; -- cgit v1.2.3 From 6110ed2db3a41f3b9d676e58ac3d4637c2b497c4 Mon Sep 17 00:00:00 2001 From: David Bauer Date: Wed, 17 Apr 2019 23:59:22 +0200 Subject: net: mdio: rename mdio_device reset to reset_gpio This renames the GPIO reset of mdio devices from 'reset' to 'reset_gpio' to better differentiate between GPIO and reset-controller driven reset line. Signed-off-by: David Bauer Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- include/linux/mdio.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mdio.h b/include/linux/mdio.h index 6eaf71500ef6..9dc16d5705a1 100644 --- a/include/linux/mdio.h +++ b/include/linux/mdio.h @@ -39,7 +39,7 @@ struct mdio_device { /* Bus address of the MDIO device (0-31) */ int addr; int flags; - struct gpio_desc *reset; + struct gpio_desc *reset_gpio; struct reset_control *reset_ctrl; unsigned int reset_assert_delay; unsigned int reset_deassert_delay; -- cgit v1.2.3 From 83b0b15bcb0f700e7c1d070aae2e7841170a4c33 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Tue, 5 Mar 2019 14:47:54 -0500 Subject: rseq: Remove superfluous rseq_len from task_struct The rseq system call, when invoked with flags of "0" or "RSEQ_FLAG_UNREGISTER" values, expects the rseq_len parameter to be equal to sizeof(struct rseq), which is fixed-size and fixed-layout, specified in uapi linux/rseq.h. Expecting a fixed size for rseq_len is a design choice that ensures multiple libraries and application defining __rseq_abi in the same process agree on its exact size. Considering that this size is and will always be the same value, there is no point in saving this value within task_struct rseq_len. Remove this field from task_struct. No change in functionality intended. Signed-off-by: Mathieu Desnoyers Acked-by: Peter Zijlstra (Intel) Cc: Andrew Morton Cc: Andy Lutomirski Cc: Ben Maurer Cc: Boqun Feng Cc: Catalin Marinas Cc: Chris Lameter Cc: Dave Watson Cc: H. Peter Anvin Cc: Joel Fernandes Cc: Josh Triplett Cc: Linus Torvalds Cc: Michael Kerrisk Cc: Paul E. McKenney Cc: Paul Turner Cc: Peter Zijlstra Cc: Russell King Cc: Steven Rostedt Cc: Thomas Gleixner Cc: Will Deacon Cc: linux-api@vger.kernel.org Link: http://lkml.kernel.org/r/20190305194755.2602-3-mathieu.desnoyers@efficios.com Signed-off-by: Ingo Molnar --- include/linux/sched.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 1549584a1538..50606a6e73d6 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1057,7 +1057,6 @@ struct task_struct { #ifdef CONFIG_RSEQ struct rseq __user *rseq; - u32 rseq_len; u32 rseq_sig; /* * RmW on rseq_event_mask must be performed atomically @@ -1855,12 +1854,10 @@ static inline void rseq_fork(struct task_struct *t, unsigned long clone_flags) { if (clone_flags & CLONE_THREAD) { t->rseq = NULL; - t->rseq_len = 0; t->rseq_sig = 0; t->rseq_event_mask = 0; } else { t->rseq = current->rseq; - t->rseq_len = current->rseq_len; t->rseq_sig = current->rseq_sig; t->rseq_event_mask = current->rseq_event_mask; } @@ -1869,7 +1866,6 @@ static inline void rseq_fork(struct task_struct *t, unsigned long clone_flags) static inline void rseq_execve(struct task_struct *t) { t->rseq = NULL; - t->rseq_len = 0; t->rseq_sig = 0; t->rseq_event_mask = 0; } -- cgit v1.2.3 From 7893f9e1c26d1f9ea02622902ee671de45ad377b Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 16 Apr 2019 22:07:52 +0200 Subject: usb: typec: tcpm: Notify the tcpc to start connection-detection for SRPs Some tcpc device-drivers need to explicitly be told to watch for connection events, otherwise the tcpc will not generate any TCPM_CC_EVENTs and devices being plugged into the Type-C port will not be noticed. For dual-role ports tcpm_start_drp_toggling() is used to tell the tcpc to watch for connection events. Sofar we lack a similar callback to the tcpc for single-role ports. With some tcpc-s such as the fusb302 this means no TCPM_CC_EVENTs will be generated when the port is configured as a single-role port. This commit renames start_drp_toggling to start_toggling and since the device-properties are parsed by the tcpm-core, adds a port_type parameter to the start_toggling callback so that the tcpc_dev driver knows the port-type and can act accordingly when it starts toggling. The new start_toggling callback now always gets called if defined, instead of only being called for DRP ports. To avoid this causing undesirable functional changes all existing start_drp_toggling implementations are not only renamed to start_toggling, but also get a port_type check added and return -EOPNOTSUPP when port_type is not DRP. Fixes: ea3b4d5523bc("usb: typec: fusb302: Resolve fixed power role ...") Cc: Adam Thomson Signed-off-by: Hans de Goede Reviewed-by: Guenter Roeck Acked-by: Heikki Krogerus Tested-by: Adam Thomson Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/tcpm.h | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h index 0c532ca3f079..36a15dcadc53 100644 --- a/include/linux/usb/tcpm.h +++ b/include/linux/usb/tcpm.h @@ -121,10 +121,10 @@ struct tcpc_config { * with partner. * @set_pd_rx: Called to enable or disable reception of PD messages * @set_roles: Called to set power and data roles - * @start_drp_toggling: - * Optional; if supported by hardware, called to start DRP - * toggling. DRP toggling is stopped automatically if - * a connection is established. + * @start_toggling: + * Optional; if supported by hardware, called to start dual-role + * toggling or single-role connection detection. Toggling stops + * automatically if a connection is established. * @try_role: Optional; called to set a preferred role * @pd_transmit:Called to transmit PD message * @mux: Pointer to multiplexer data @@ -147,8 +147,9 @@ struct tcpc_dev { int (*set_pd_rx)(struct tcpc_dev *dev, bool on); int (*set_roles)(struct tcpc_dev *dev, bool attached, enum typec_role role, enum typec_data_role data); - int (*start_drp_toggling)(struct tcpc_dev *dev, - enum typec_cc_status cc); + int (*start_toggling)(struct tcpc_dev *dev, + enum typec_port_type port_type, + enum typec_cc_status cc); int (*try_role)(struct tcpc_dev *dev, int role); int (*pd_transmit)(struct tcpc_dev *dev, enum tcpm_transmit_type type, const struct pd_message *msg); -- cgit v1.2.3 From 496124e5e16e4974c71404bc9ddaa016156f8cb0 Mon Sep 17 00:00:00 2001 From: Okash Khawaja Date: Wed, 17 Apr 2019 13:21:13 +0100 Subject: vt: selection: allow functions to be called from inside kernel This patch breaks set_selection() into two functions so that when called from kernel, copy_from_user() can be avoided. The two functions are called set_selection_user() and set_selection_kernel() in order to be explicit about their purposes. This also means updating any references to set_selection() and fixing for name change. It also exports set_selection_kernel() and paste_selection(). These changes are used the following patch where speakup's selection functionality calls into the above functions, thereby doing away with parallel implementation. Signed-off-by: Okash Khawaja Reviewed-by: Samuel Thibault Tested-by: Gregory Nowak Signed-off-by: Greg Kroah-Hartman --- include/linux/selection.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/selection.h b/include/linux/selection.h index a8f5b97b216f..e2c1f96bf059 100644 --- a/include/linux/selection.h +++ b/include/linux/selection.h @@ -11,13 +11,14 @@ #include #include -struct tty_struct; - extern struct vc_data *sel_cons; struct tty_struct; extern void clear_selection(void); -extern int set_selection(const struct tiocl_selection __user *sel, struct tty_struct *tty); +extern int set_selection_user(const struct tiocl_selection __user *sel, + struct tty_struct *tty); +extern int set_selection_kernel(struct tiocl_selection *v, + struct tty_struct *tty); extern int paste_selection(struct tty_struct *tty); extern int sel_loadlut(char __user *p); extern int mouse_reporting(void); -- cgit v1.2.3 From 4dcabece4c3a9f9522127be12cc12cc120399b2f Mon Sep 17 00:00:00 2001 From: Roman Gushchin Date: Fri, 19 Apr 2019 10:03:03 -0700 Subject: cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock The number of descendant cgroups and the number of dying descendant cgroups are currently synchronized using the cgroup_mutex. The number of descendant cgroups will be required by the cgroup v2 freezer, which will use it to determine if a cgroup is frozen (depending on total number of descendants and number of frozen descendants). It's not always acceptable to grab the cgroup_mutex, especially from quite hot paths (e.g. exit()). To avoid this, let's additionally synchronize these counters using the css_set_lock. So, it's safe to read these counters with either cgroup_mutex or css_set_lock locked, and for changing both locks should be acquired. Signed-off-by: Roman Gushchin Signed-off-by: Tejun Heo Cc: kernel-team@fb.com --- include/linux/cgroup-defs.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index 1c70803e9f77..7d57890cec67 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -349,6 +349,11 @@ struct cgroup { * Dying cgroups are cgroups which were deleted by a user, * but are still existing because someone else is holding a reference. * max_descendants is a maximum allowed number of descent cgroups. + * + * nr_descendants and nr_dying_descendants are protected + * by cgroup_mutex and css_set_lock. It's fine to read them holding + * any of cgroup_mutex and css_set_lock; for writing both locks + * should be held. */ int nr_descendants; int nr_dying_descendants; -- cgit v1.2.3 From 76f969e8948d82e78e1bc4beb6b9465908e74873 Mon Sep 17 00:00:00 2001 From: Roman Gushchin Date: Fri, 19 Apr 2019 10:03:04 -0700 Subject: cgroup: cgroup v2 freezer Cgroup v1 implements the freezer controller, which provides an ability to stop the workload in a cgroup and temporarily free up some resources (cpu, io, network bandwidth and, potentially, memory) for some other tasks. Cgroup v2 lacks this functionality. This patch implements freezer for cgroup v2. Cgroup v2 freezer tries to put tasks into a state similar to jobctl stop. This means that tasks can be killed, ptraced (using PTRACE_SEIZE*), and interrupted. It is possible to attach to a frozen task, get some information (e.g. read registers) and detach. It's also possible to migrate a frozen tasks to another cgroup. This differs cgroup v2 freezer from cgroup v1 freezer, which mostly tried to imitate the system-wide freezer. However uninterruptible sleep is fine when all tasks are going to be frozen (hibernation case), it's not the acceptable state for some subset of the system. Cgroup v2 freezer is not supporting freezing kthreads. If a non-root cgroup contains kthread, the cgroup still can be frozen, but the kthread will remain running, the cgroup will be shown as non-frozen, and the notification will not be delivered. * PTRACE_ATTACH is not working because non-fatal signal delivery is blocked in frozen state. There are some interface differences between cgroup v1 and cgroup v2 freezer too, which are required to conform the cgroup v2 interface design principles: 1) There is no separate controller, which has to be turned on: the functionality is always available and is represented by cgroup.freeze and cgroup.events cgroup control files. 2) The desired state is defined by the cgroup.freeze control file. Any hierarchical configuration is allowed. 3) The interface is asynchronous. The actual state is available using cgroup.events control file ("frozen" field). There are no dedicated transitional states. 4) It's allowed to make any changes with the cgroup hierarchy (create new cgroups, remove old cgroups, move tasks between cgroups) no matter if some cgroups are frozen. Signed-off-by: Roman Gushchin Signed-off-by: Tejun Heo No-objection-from-me-by: Oleg Nesterov Cc: kernel-team@fb.com --- include/linux/cgroup-defs.h | 28 ++++++++++++++++++++++++++++ include/linux/cgroup.h | 43 +++++++++++++++++++++++++++++++++++++++++++ include/linux/sched.h | 2 ++ include/linux/sched/jobctl.h | 2 ++ 4 files changed, 75 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index 7d57890cec67..77258d276f93 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -65,6 +65,12 @@ enum { * specified at mount time and thus is implemented here. */ CGRP_CPUSET_CLONE_CHILDREN, + + /* Control group has to be frozen. */ + CGRP_FREEZE, + + /* Cgroup is frozen. */ + CGRP_FROZEN, }; /* cgroup_root->flags */ @@ -317,6 +323,25 @@ struct cgroup_rstat_cpu { struct cgroup *updated_next; /* NULL iff not on the list */ }; +struct cgroup_freezer_state { + /* Should the cgroup and its descendants be frozen. */ + bool freeze; + + /* Should the cgroup actually be frozen? */ + int e_freeze; + + /* Fields below are protected by css_set_lock */ + + /* Number of frozen descendant cgroups */ + int nr_frozen_descendants; + + /* + * Number of tasks, which are counted as frozen: + * frozen, SIGSTOPped, and PTRACEd. + */ + int nr_frozen_tasks; +}; + struct cgroup { /* self css with NULL ->ss, points back to this cgroup */ struct cgroup_subsys_state self; @@ -453,6 +478,9 @@ struct cgroup { /* If there is block congestion on this cgroup. */ atomic_t congestion_count; + /* Used to store internal freezer state */ + struct cgroup_freezer_state freezer; + /* ids of the ancestors at each level including self */ int ancestor_ids[]; }; diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 81f58b4a5418..3e2efd412dfa 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -881,4 +881,47 @@ static inline void put_cgroup_ns(struct cgroup_namespace *ns) free_cgroup_ns(ns); } +#ifdef CONFIG_CGROUPS + +void cgroup_enter_frozen(void); +void cgroup_leave_frozen(bool always_leave); +void cgroup_update_frozen(struct cgroup *cgrp); +void cgroup_freeze(struct cgroup *cgrp, bool freeze); +void cgroup_freezer_migrate_task(struct task_struct *task, struct cgroup *src, + struct cgroup *dst); +void cgroup_freezer_frozen_exit(struct task_struct *task); +static inline bool cgroup_task_freeze(struct task_struct *task) +{ + bool ret; + + if (task->flags & PF_KTHREAD) + return false; + + rcu_read_lock(); + ret = test_bit(CGRP_FREEZE, &task_dfl_cgroup(task)->flags); + rcu_read_unlock(); + + return ret; +} + +static inline bool cgroup_task_frozen(struct task_struct *task) +{ + return task->frozen; +} + +#else /* !CONFIG_CGROUPS */ + +static inline void cgroup_enter_frozen(void) { } +static inline void cgroup_leave_frozen(bool always_leave) { } +static inline bool cgroup_task_freeze(struct task_struct *task) +{ + return false; +} +static inline bool cgroup_task_frozen(struct task_struct *task) +{ + return false; +} + +#endif /* !CONFIG_CGROUPS */ + #endif /* _LINUX_CGROUP_H */ diff --git a/include/linux/sched.h b/include/linux/sched.h index 1549584a1538..45b2199bd683 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -726,6 +726,8 @@ struct task_struct { #ifdef CONFIG_CGROUPS /* disallow userland-initiated cgroup migration */ unsigned no_cgroup_migration:1; + /* task is frozen/stopped (used by the cgroup freezer) */ + unsigned frozen:1; #endif #ifdef CONFIG_BLK_CGROUP /* to be used once the psi infrastructure lands upstream. */ diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h index 98228bd48aee..fa067de9f1a9 100644 --- a/include/linux/sched/jobctl.h +++ b/include/linux/sched/jobctl.h @@ -18,6 +18,7 @@ struct task_struct; #define JOBCTL_TRAP_NOTIFY_BIT 20 /* trap for NOTIFY */ #define JOBCTL_TRAPPING_BIT 21 /* switching to TRACED */ #define JOBCTL_LISTENING_BIT 22 /* ptracer is listening for events */ +#define JOBCTL_TRAP_FREEZE_BIT 23 /* trap for cgroup freezer */ #define JOBCTL_STOP_DEQUEUED (1UL << JOBCTL_STOP_DEQUEUED_BIT) #define JOBCTL_STOP_PENDING (1UL << JOBCTL_STOP_PENDING_BIT) @@ -26,6 +27,7 @@ struct task_struct; #define JOBCTL_TRAP_NOTIFY (1UL << JOBCTL_TRAP_NOTIFY_BIT) #define JOBCTL_TRAPPING (1UL << JOBCTL_TRAPPING_BIT) #define JOBCTL_LISTENING (1UL << JOBCTL_LISTENING_BIT) +#define JOBCTL_TRAP_FREEZE (1UL << JOBCTL_TRAP_FREEZE_BIT) #define JOBCTL_TRAP_MASK (JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY) #define JOBCTL_PENDING_MASK (JOBCTL_STOP_PENDING | JOBCTL_TRAP_MASK) -- cgit v1.2.3 From 5b978c10665973d8ee7050b03ef6e97013066b03 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 25 Jan 2019 16:41:25 +0100 Subject: irqchip: Add driver for IXP4xx The IXP4xx (arch/arm/mach-ixp4xx) is an old Intel XScale platform that has very wide deployment and use. As part of modernizing the platform, we need to implement a proper irqchip in the irqchip subsystem. The IXP4xx irqchip is tightly jotted together with the GPIO controller, and whereas in the past we would deal with this complex logic by adding necessarily different code, we can nowadays modernize it using a hierarchical irqchip. The actual IXP4 irqchip is a simple active low level IRQ controller, whereas the GPIO functionality resides in a different memory area and adds edge trigger support for the interrupts. The interrupts from GPIO lines 0..12 are 1:1 mapped to a fixed set of hardware IRQs on this IRQchip, so we expect the child GPIO interrupt controller to go in and allocate descriptors for these interrupts. For the other interrupts, as we do not yet have DT support for this platform, we create a linear irqdomain and then go in and allocate the IRQs that the legacy boards use. This code will be removed on the DT probe path when we add DT support to the platform. We add some translation code for supporting DT translations for the fwnodes, but we leave most of that for later. Cc: Marc Zyngier Cc: Jason Cooper Acked-by: Marc Zyngier Signed-off-by: Linus Walleij --- include/linux/irqchip/irq-ixp4xx.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 include/linux/irqchip/irq-ixp4xx.h (limited to 'include/linux') diff --git a/include/linux/irqchip/irq-ixp4xx.h b/include/linux/irqchip/irq-ixp4xx.h new file mode 100644 index 000000000000..9395917d6936 --- /dev/null +++ b/include/linux/irqchip/irq-ixp4xx.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __IRQ_IXP4XX_H +#define __IRQ_IXP4XX_H + +#include +struct irq_domain; + +void ixp4xx_irq_init(resource_size_t irqbase, + bool is_356); +struct irq_domain *ixp4xx_get_irq_domain(void); + +#endif /* __IRQ_IXP4XX_H */ -- cgit v1.2.3 From c7cbdbf29f488a19982cd9f4a109887f18028bbb Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 17 Apr 2019 22:51:48 +0200 Subject: net: rework SIOCGSTAMP ioctl handling The SIOCGSTAMP/SIOCGSTAMPNS ioctl commands are implemented by many socket protocol handlers, and all of those end up calling the same sock_get_timestamp()/sock_get_timestampns() helper functions, which results in a lot of duplicate code. With the introduction of 64-bit time_t on 32-bit architectures, this gets worse, as we then need four different ioctl commands in each socket protocol implementation. To simplify that, let's add a new .gettstamp() operation in struct proto_ops, and move ioctl implementation into the common sock_ioctl()/compat_sock_ioctl_trans() functions that these all go through. We can reuse the sock_get_timestamp() implementation, but generalize it so it can deal with both native and compat mode, as well as timeval and timespec structures. Acked-by: Stefan Schmidt Acked-by: Neil Horman Acked-by: Marc Kleine-Budde Link: https://lore.kernel.org/lkml/CAK8P3a038aDQQotzua_QtKGhq8O9n+rdiz2=WDCp82ys8eUT+A@mail.gmail.com/ Signed-off-by: Arnd Bergmann Acked-by: Willem de Bruijn Signed-off-by: David S. Miller --- include/linux/net.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/net.h b/include/linux/net.h index c606c72311d0..50bf5206ead6 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -161,6 +161,8 @@ struct proto_ops { int (*compat_ioctl) (struct socket *sock, unsigned int cmd, unsigned long arg); #endif + int (*gettstamp) (struct socket *sock, void __user *userstamp, + bool timeval, bool time32); int (*listen) (struct socket *sock, int len); int (*shutdown) (struct socket *sock, int flags); int (*setsockopt)(struct socket *sock, int level, -- cgit v1.2.3 From 1b833924e5b3cea92306069a0f366529341dd260 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 12 Apr 2019 11:31:45 -0700 Subject: driver core: Let dev_of_node() accept a NULL dev We'd like to chain this in places where the 'dev' argument might be NULL. Let this function take a NULL 'dev' so this can work. Cc: Miquel Raynal Cc: Jerome Brunet Cc: Russell King Cc: Michael Turquette Cc: Jeffrey Hugo Cc: Chen-Yu Tsai Cc: Greg Kroah-Hartman Cc: Rob Herring Acked-by: Greg Kroah-Hartman Tested-by: Jeffrey Hugo Signed-off-by: Stephen Boyd --- include/linux/device.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/device.h b/include/linux/device.h index b425a7ee04ce..0370dd0b3ae7 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -1231,7 +1231,7 @@ static inline void device_lock_assert(struct device *dev) static inline struct device_node *dev_of_node(struct device *dev) { - if (!IS_ENABLED(CONFIG_OF)) + if (!IS_ENABLED(CONFIG_OF) || !dev) return NULL; return dev->of_node; } -- cgit v1.2.3 From 89a5ddcc799d5d7dbcf6197b79dafc1dc9f997f5 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 12 Apr 2019 11:31:46 -0700 Subject: clk: Add of_clk_hw_register() API for early clk drivers In some circumstances drivers register clks early and don't have access to a struct device because the device model isn't initialized yet. Add an API to let drivers register clks associated with a struct device_node so that these drivers can participate in getting parent clks through DT. Cc: Miquel Raynal Cc: Jerome Brunet Cc: Russell King Cc: Michael Turquette Cc: Jeffrey Hugo Cc: Chen-Yu Tsai Cc: Rob Herring Tested-by: Jeffrey Hugo Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index b7cf80a71293..7d2d97e15b76 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -773,6 +773,7 @@ struct clk *devm_clk_register(struct device *dev, struct clk_hw *hw); int __must_check clk_hw_register(struct device *dev, struct clk_hw *hw); int __must_check devm_clk_hw_register(struct device *dev, struct clk_hw *hw); +int __must_check of_clk_hw_register(struct device_node *node, struct clk_hw *hw); void clk_unregister(struct clk *clk); void devm_clk_unregister(struct device *dev, struct clk *clk); -- cgit v1.2.3 From fc0c209c147f35ed2648adda09db39fcad89e334 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 12 Apr 2019 11:31:47 -0700 Subject: clk: Allow parents to be specified without string names The common clk framework is lacking in ability to describe the clk topology without specifying strings for every possible parent-child link. There are a few drawbacks to the current approach: 1) String comparisons are used for everything, including describing topologies that are 'local' to a single clock controller. 2) clk providers (e.g. i2c clk drivers) need to create globally unique clk names to avoid collisions in the clk namespace, leading to awkward name generation code in various clk drivers. 3) DT bindings may not fully describe the clk topology and linkages between clk controllers because drivers can easily rely on globally unique strings to describe connections between clks. This leads to confusing DT bindings, complicated clk name generation code, and inefficient string comparisons during clk registration just so that the clk framework can detect the topology of the clk tree. Furthermore, some drivers call clk_get() and then __clk_get_name() to extract the globally unique clk name just so they can specify the parent of the clk they're registering. We have of_clk_parent_fill() but that mostly only works for single clks registered from a DT node, which isn't the norm. Let's simplify this all by introducing two new ways of specifying clk parents. The first method is an array of pointers to clk_hw structures corresponding to the parents at that index. This works for clks that are registered when we have access to all the clk_hw pointers for the parents. The second method is a mix of clk_hw pointers and strings of local and global parent clk names. If the .fw_name member of the map is set we'll look for that clk by performing a DT based lookup of the device the clk is registered with and the .name specified in the map. If that fails, we'll fallback to the .name member and perform a global clk name lookup like we've always done before. Using either one of these new methods is entirely optional. Existing drivers will continue to work, and they can migrate to this new approach as they see fit. Eventually, we'll want to get rid of the 'parent_names' array in struct clk_init_data and use one of these new methods instead. Cc: Miquel Raynal Cc: Jerome Brunet Cc: Russell King Cc: Michael Turquette Cc: Jeffrey Hugo Cc: Chen-Yu Tsai Cc: Rob Herring Tested-by: Jeffrey Hugo Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 7d2d97e15b76..4c58dbdb0e66 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -250,6 +250,18 @@ struct clk_ops { void (*debug_init)(struct clk_hw *hw, struct dentry *dentry); }; +/** + * struct clk_parent_data - clk parent information + * @hw: parent clk_hw pointer (used for clk providers with internal clks) + * @fw_name: parent name local to provider registering clk + * @name: globally unique parent name (used as a fallback) + */ +struct clk_parent_data { + const struct clk_hw *hw; + const char *fw_name; + const char *name; +}; + /** * struct clk_init_data - holds init data that's common to all clocks and is * shared between the clock provider and the common clock framework. @@ -257,13 +269,20 @@ struct clk_ops { * @name: clock name * @ops: operations this clock supports * @parent_names: array of string names for all possible parents + * @parent_data: array of parent data for all possible parents (when some + * parents are external to the clk controller) + * @parent_hws: array of pointers to all possible parents (when all parents + * are internal to the clk controller) * @num_parents: number of possible parents * @flags: framework-level hints and quirks */ struct clk_init_data { const char *name; const struct clk_ops *ops; + /* Only one of the following three should be assigned */ const char * const *parent_names; + const struct clk_parent_data *parent_data; + const struct clk_hw **parent_hws; u8 num_parents; unsigned long flags; }; -- cgit v1.2.3 From 601b6e93304a65f8f7c37168763ab9ba5b195ce5 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 12 Apr 2019 11:31:49 -0700 Subject: clk: Allow parents to be specified via clkspec index Some clk providers are simple DT nodes that only have a 'clocks' property without having an associated 'clock-names' property. In these cases, we want to let these clk providers point to their parent clks without having to dereference the 'clocks' property at probe time to figure out the parent's globally unique clk name. Let's add an 'index' property to the parent_data structure so that clk providers can indicate that their parent is a particular index in the 'clocks' DT property. Cc: Miquel Raynal Cc: Jerome Brunet Cc: Russell King Cc: Michael Turquette Cc: Jeffrey Hugo Cc: Chen-Yu Tsai Tested-by: Jeffrey Hugo Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 4c58dbdb0e66..27d8f96dd283 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -255,11 +255,13 @@ struct clk_ops { * @hw: parent clk_hw pointer (used for clk providers with internal clks) * @fw_name: parent name local to provider registering clk * @name: globally unique parent name (used as a fallback) + * @index: parent index local to provider registering clk (if @fw_name absent) */ struct clk_parent_data { const struct clk_hw *hw; const char *fw_name; const char *name; + int index; }; /** -- cgit v1.2.3 From d55535232c3dbde9a523a9d10d68670f5fe5dec3 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 19 Apr 2019 23:27:05 -0400 Subject: random: move rand_initialize() earlier Right now rand_initialize() is run as an early_initcall(), but it only depends on timekeeping_init() (for mixing ktime_get_real() into the pools). However, the call to boot_init_stack_canary() for stack canary initialization runs earlier, which triggers a warning at boot: random: get_random_bytes called from start_kernel+0x357/0x548 with crng_init=0 Instead, this moves rand_initialize() to after timekeeping_init(), and moves canary initialization here as well. Note that this warning may still remain for machines that do not have UEFI RNG support (which initializes the RNG pools during setup_arch()), or for x86 machines without RDRAND (or booting without "random.trust=on" or CONFIG_RANDOM_TRUST_CPU=y). Signed-off-by: Kees Cook Signed-off-by: Theodore Ts'o --- include/linux/random.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/random.h b/include/linux/random.h index 445a0ea4ff49..13aeaf5a4bd4 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -36,6 +36,7 @@ extern void add_interrupt_randomness(int irq, int irq_flags) __latent_entropy; extern void get_random_bytes(void *buf, int nbytes); extern int wait_for_random_bytes(void); +extern int __init rand_initialize(void); extern bool rng_is_initialized(void); extern int add_random_ready_callback(struct random_ready_callback *rdy); extern void del_random_ready_callback(struct random_ready_callback *rdy); -- cgit v1.2.3 From 590085f0f25a169772180f57f56deb92b18ea302 Mon Sep 17 00:00:00 2001 From: Robert Shearman Date: Thu, 28 Feb 2019 11:43:42 +0000 Subject: i2c: mux: pca9541: remove support for unused platform data There are no in-tree users of the platform data, so remove it to simplify the code slightly. Remove the now unused pca954x.h platform data header. Signed-off-by: Robert Shearman Signed-off-by: Peter Rosin --- include/linux/platform_data/pca954x.h | 48 ----------------------------------- 1 file changed, 48 deletions(-) delete mode 100644 include/linux/platform_data/pca954x.h (limited to 'include/linux') diff --git a/include/linux/platform_data/pca954x.h b/include/linux/platform_data/pca954x.h deleted file mode 100644 index 1712677d5904..000000000000 --- a/include/linux/platform_data/pca954x.h +++ /dev/null @@ -1,48 +0,0 @@ -/* - * - * pca954x.h - I2C multiplexer/switch support - * - * Copyright (c) 2008-2009 Rodolfo Giometti - * Copyright (c) 2008-2009 Eurotech S.p.A. - * Michael Lawnick - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - - -#ifndef _LINUX_I2C_PCA954X_H -#define _LINUX_I2C_PCA954X_H - -/* Platform data for the PCA954x I2C multiplexers */ - -/* Per channel initialisation data: - * @adap_id: bus number for the adapter. 0 = don't care - * @deselect_on_exit: set this entry to 1, if your H/W needs deselection - * of this channel after transaction. - * - */ -struct pca954x_platform_mode { - int adap_id; - unsigned int deselect_on_exit:1; - unsigned int class; -}; - -/* Per mux/switch data, used with i2c_register_board_info */ -struct pca954x_platform_data { - struct pca954x_platform_mode *modes; - int num_modes; -}; - -#endif /* _LINUX_I2C_PCA954X_H */ -- cgit v1.2.3 From 20c89b4d1dc4e7cc329d00edcaf7a7aa14278557 Mon Sep 17 00:00:00 2001 From: Fabrice Gasnier Date: Mon, 15 Apr 2019 11:47:22 +0200 Subject: iio: trigger: stm32-timer: fix build issue when disabled This fixes a build issue when CONFIG_IIO_STM32_TIMER_TRIGGER isn't set but used in stm32-dfsdm-adc driver (e.g. CONFIG_STM32_DFSDM_ADC is set): ERROR: "is_stm32_timer_trigger" [drivers/iio/adc/stm32-dfsdm-adc.ko] undefined! There are two possible options to fix this issue: - select IIO_STM32_TIMER_TRIGGER along with CONFIG_STM32_DFSDM_ADC. This is what's being done currently for CONFIG_STM32_ADC. - stub "is_stm32_timer_trigger" function Choice is made to stub this function as suggested in [1]. This is also inspired by similar "is_stm32_lptim_trigger" function (see [2]) in include/linux/iio/timer/stm32-lptim-trigger.h [1] https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1977377.html [2] https://lkml.org/lkml/2017/9/10/124 Fixes: 11646e81d775 ("iio: adc: stm32-dfsdm: add support for buffer modes") Reported-by: Randy Dunlap Fix-suggested-by: Jonathan Cameron Signed-off-by: Fabrice Gasnier Signed-off-by: Jonathan Cameron --- include/linux/iio/timer/stm32-timer-trigger.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/iio/timer/stm32-timer-trigger.h b/include/linux/iio/timer/stm32-timer-trigger.h index d68add80ab86..cbb7c7ae6c0c 100644 --- a/include/linux/iio/timer/stm32-timer-trigger.h +++ b/include/linux/iio/timer/stm32-timer-trigger.h @@ -73,6 +73,15 @@ #define TIM17_OC1 "tim17_oc1" +#if IS_REACHABLE(CONFIG_IIO_STM32_TIMER_TRIGGER) bool is_stm32_timer_trigger(struct iio_trigger *trig); - +#else +static inline bool is_stm32_timer_trigger(struct iio_trigger *trig) +{ +#if IS_ENABLED(CONFIG_IIO_STM32_TIMER_TRIGGER) + pr_warn_once("stm32-timer-trigger not linked in\n"); +#endif + return false; +} +#endif #endif -- cgit v1.2.3 From 6fcc44d1d77fea3c7230e4d109b37f6977aa675a Mon Sep 17 00:00:00 2001 From: Yufen Yu Date: Tue, 2 Apr 2019 20:06:34 +0800 Subject: block: fix use-after-free on gendisk commit 2da78092dda "block: Fix dev_t minor allocation lifetime" specifically moved blk_free_devt(dev->devt) call to part_release() to avoid reallocating device number before the device is fully shutdown. However, it can cause use-after-free on gendisk in get_gendisk(). We use md device as example to show the race scenes: Process1 Worker Process2 md_free blkdev_open del_gendisk add delete_partition_work_fn() to wq __blkdev_get get_gendisk put_disk disk_release kfree(disk) find part from ext_devt_idr get_disk_and_module(disk) cause use after free delete_partition_work_fn put_device(part) part_release remove part from ext_devt_idr Before is removed from ext_devt_idr by delete_partition_work_fn(), we can find the devt and then access gendisk by hd_struct pointer. But, if we access the gendisk after it have been freed, it can cause in use-after-freeon gendisk in get_gendisk(). We fix this by adding a new helper blk_invalidate_devt() in delete_partition() and del_gendisk(). It replaces hd_struct pointer in idr with value 'NULL', and deletes the entry from idr in part_release() as we do now. Thanks to Jan Kara for providing the solution and more clear comments for the code. Fixes: 2da78092dda1 ("block: Fix dev_t minor allocation lifetime") Cc: Al Viro Reviewed-by: Bart Van Assche Reviewed-by: Keith Busch Reviewed-by: Jan Kara Suggested-by: Jan Kara Signed-off-by: Yufen Yu Signed-off-by: Jens Axboe --- include/linux/genhd.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 6547c9256d5c..8b5330dd5ac0 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -617,6 +617,7 @@ struct unixware_disklabel { extern int blk_alloc_devt(struct hd_struct *part, dev_t *devt); extern void blk_free_devt(dev_t devt); +extern void blk_invalidate_devt(dev_t devt); extern dev_t blk_lookup_devt(const char *name, int partno); extern char *disk_name (struct gendisk *hd, int partno, char *buf); -- cgit v1.2.3 From a88a7b3eb076ade6205176915fd2ee73a60f4a32 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Sat, 30 Mar 2019 09:41:35 -0500 Subject: vfio: Use dev_printk() when possible Use dev_printk() when possible to make messages consistent with other device-related messages. Signed-off-by: Bjorn Helgaas Acked-by: Eric Auger Reviewed-by: Eric Auger Signed-off-by: Alex Williamson --- include/linux/pci.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pci.h b/include/linux/pci.h index 77448215ef5b..27854731afc4 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -2363,4 +2363,7 @@ void pci_uevent_ers(struct pci_dev *pdev, enum pci_ers_result err_type); #define pci_info(pdev, fmt, arg...) dev_info(&(pdev)->dev, fmt, ##arg) #define pci_dbg(pdev, fmt, arg...) dev_dbg(&(pdev)->dev, fmt, ##arg) +#define pci_notice_ratelimited(pdev, fmt, arg...) \ + dev_notice_ratelimited(&(pdev)->dev, fmt, ##arg) + #endif /* LINUX_PCI_H */ -- cgit v1.2.3 From 7df737e991069d75eec1ded1c8b37e81b8c54df9 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Fri, 19 Apr 2019 07:44:54 -0700 Subject: bpf: remove global variables Move three global variables protected by bpf_verifier_lock into 'struct bpf_verifier_env' to allow parallel verification. Signed-off-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann --- include/linux/bpf_verifier.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index b3ab61fe1932..1305ccbd8fe6 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -295,6 +295,11 @@ struct bpf_verifier_env { const struct bpf_line_info *prev_linfo; struct bpf_verifier_log log; struct bpf_subprog_info subprog_info[BPF_MAX_SUBPROGS + 1]; + struct { + int *insn_state; + int *insn_stack; + int cur_stack; + } cfg; u32 subprog_cnt; /* number of instructions analyzed by the verifier */ u32 insn_processed; -- cgit v1.2.3 From 4050586b2beec8603d25ad7fc7ba15670143e6ba Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Wed, 10 Apr 2019 18:39:15 +0300 Subject: gpiolib: Indent entry values of enum gpio_lookup_flags Indent entry values in the enum gpio_lookup_flags for better readability. No functional change. Signed-off-by: Andy Shevchenko Acked-by: Hans de Goede Reviewed-by: Mika Westerberg Signed-off-by: Linus Walleij --- include/linux/gpio/machine.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/gpio/machine.h b/include/linux/gpio/machine.h index 69673be10213..a0a981676490 100644 --- a/include/linux/gpio/machine.h +++ b/include/linux/gpio/machine.h @@ -6,14 +6,14 @@ #include enum gpio_lookup_flags { - GPIO_ACTIVE_HIGH = (0 << 0), - GPIO_ACTIVE_LOW = (1 << 0), - GPIO_OPEN_DRAIN = (1 << 1), - GPIO_OPEN_SOURCE = (1 << 2), - GPIO_PERSISTENT = (0 << 3), - GPIO_TRANSITORY = (1 << 3), - GPIO_PULL_UP = (1 << 4), - GPIO_PULL_DOWN = (1 << 5), + GPIO_ACTIVE_HIGH = (0 << 0), + GPIO_ACTIVE_LOW = (1 << 0), + GPIO_OPEN_DRAIN = (1 << 1), + GPIO_OPEN_SOURCE = (1 << 2), + GPIO_PERSISTENT = (0 << 3), + GPIO_TRANSITORY = (1 << 3), + GPIO_PULL_UP = (1 << 4), + GPIO_PULL_DOWN = (1 << 5), }; /** -- cgit v1.2.3 From fed7026adc7c3a67f992d28d7a5309ff749d3776 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Wed, 10 Apr 2019 18:39:16 +0300 Subject: gpiolib: Make use of enum gpio_lookup_flags consistent The library uses enum gpio_lookup_flags to define the possible characteristics of GPIO pin. Since enumerator listed only individual bits the common use of it is in a form of a bitmask of gpio_lookup_flags GPIO_* values. The more correct type for this is unsigned long. Due to above convert all users to use unsigned long instead of enum gpio_lookup_flags except enumerator definition. While here, make field and parameter descriptions consistent as well. Suggested-by: Mika Westerberg Signed-off-by: Andy Shevchenko Reviewed-by: Mika Westerberg Signed-off-by: Linus Walleij --- include/linux/gpio/machine.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/gpio/machine.h b/include/linux/gpio/machine.h index a0a981676490..dad392158550 100644 --- a/include/linux/gpio/machine.h +++ b/include/linux/gpio/machine.h @@ -22,7 +22,7 @@ enum gpio_lookup_flags { * @chip_hwnum: hardware number (i.e. relative to the chip) of the GPIO * @con_id: name of the GPIO from the device's point of view * @idx: index of the GPIO in case several GPIOs share the same name - * @flags: mask of GPIO_* values + * @flags: bitmask of gpio_lookup_flags GPIO_* values * * gpiod_lookup is a lookup table for associating GPIOs to specific devices and * functions using platform data. @@ -32,7 +32,7 @@ struct gpiod_lookup { u16 chip_hwnum; const char *con_id; unsigned int idx; - enum gpio_lookup_flags flags; + unsigned long flags; }; struct gpiod_lookup_table { @@ -46,7 +46,7 @@ struct gpiod_lookup_table { * @chip_label: name of the chip the GPIO belongs to * @chip_hwnum: hardware number (i.e. relative to the chip) of the GPIO * @line_name: consumer name for the hogged line - * @lflags: mask of GPIO lookup flags + * @lflags: bitmask of gpio_lookup_flags GPIO_* values * @dflags: GPIO flags used to specify the direction and value */ struct gpiod_hog { @@ -54,7 +54,7 @@ struct gpiod_hog { const char *chip_label; u16 chip_hwnum; const char *line_name; - enum gpio_lookup_flags lflags; + unsigned long lflags; int dflags; }; -- cgit v1.2.3 From 2d6c06f5a4094ab4ea15b63af72d2dab74e9415a Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Wed, 10 Apr 2019 18:39:17 +0300 Subject: gpiolib: Introduce GPIO_LOOKUP_FLAGS_DEFAULT Since GPIO library operates with enumerator when it's subject to handle the GPIO lookup flags, it will be better to clearly see what default means. Thus, introduce GPIO_LOOKUP_FLAGS_DEFAULT entry to describe the default assumptions. While here, replace 0 by newly introduced constant. Signed-off-by: Andy Shevchenko Reviewed-by: Mika Westerberg Signed-off-by: Linus Walleij --- include/linux/gpio/machine.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/gpio/machine.h b/include/linux/gpio/machine.h index dad392158550..35f299d1f6a7 100644 --- a/include/linux/gpio/machine.h +++ b/include/linux/gpio/machine.h @@ -14,6 +14,8 @@ enum gpio_lookup_flags { GPIO_TRANSITORY = (1 << 3), GPIO_PULL_UP = (1 << 4), GPIO_PULL_DOWN = (1 << 5), + + GPIO_LOOKUP_FLAGS_DEFAULT = GPIO_ACTIVE_HIGH | GPIO_PERSISTENT, }; /** -- cgit v1.2.3 From fe066621c7966fe47fa17c6be6fd81adb3c0509f Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Fri, 12 Apr 2019 23:19:11 +0800 Subject: gpio: merrifield: Fix build err without CONFIG_ACPI When building CONFIG_ACPI is not set gcc warn this: drivers/gpio/gpio-merrifield.c: In function mrfld_gpio_get_pinctrl_dev_name: drivers/gpio/gpio-merrifield.c:388:19: error: dereferencing pointer to incomplete type struct acpi_device put_device(&adev->dev); ^~ Reported-by: Hulk Robot Fixes: d00d2109c367 ("gpio: merrifield: Convert to use acpi_dev_get_first_match_dev()") Suggested-by: Andy Shevchenko Signed-off-by: YueHaibing Reviewed-by: Andy Shevchenko Acked-by: Linus Walleij Signed-off-by: Rafael J. Wysocki --- include/linux/acpi.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 392413075cc0..ca55ae00f8c9 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -675,6 +675,8 @@ acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) return NULL; } +static inline void acpi_dev_put(struct acpi_device *adev) {} + static inline bool is_acpi_node(struct fwnode_handle *fwnode) { return false; -- cgit v1.2.3 From 6e1ffbb7c2ab80df54ecbb01cf3d2c64aafed74a Mon Sep 17 00:00:00 2001 From: Jean-Philippe Brucker Date: Wed, 17 Apr 2019 19:24:40 +0100 Subject: PCI: Move ATS declarations outside of CONFIG_PCI At the moment, the ATS functions are only defined when CONFIG_PCI is enabled. Since we're about to use them in the Arm SMMUv3 driver, which could be built with CONFIG_PCI disabled, and they are already guarded by CONFIG_PCI_ATS which depends on CONFIG_PCI, move the definitions outside of CONFIG_PCI. Acked-by: Bjorn Helgaas Signed-off-by: Jean-Philippe Brucker Signed-off-by: Will Deacon --- include/linux/pci.h | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pci.h b/include/linux/pci.h index 77448215ef5b..169c6a18d0b0 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1521,21 +1521,6 @@ static inline void pcie_ecrc_get_policy(char *str) { } bool pci_ats_disabled(void); -#ifdef CONFIG_PCI_ATS -/* Address Translation Service */ -void pci_ats_init(struct pci_dev *dev); -int pci_enable_ats(struct pci_dev *dev, int ps); -void pci_disable_ats(struct pci_dev *dev); -int pci_ats_queue_depth(struct pci_dev *dev); -int pci_ats_page_aligned(struct pci_dev *dev); -#else -static inline void pci_ats_init(struct pci_dev *d) { } -static inline int pci_enable_ats(struct pci_dev *d, int ps) { return -ENODEV; } -static inline void pci_disable_ats(struct pci_dev *d) { } -static inline int pci_ats_queue_depth(struct pci_dev *d) { return -ENODEV; } -static inline int pci_ats_page_aligned(struct pci_dev *dev) { return 0; } -#endif - #ifdef CONFIG_PCIE_PTM int pci_enable_ptm(struct pci_dev *dev, u8 *granularity); #else @@ -1730,6 +1715,21 @@ static inline const struct pci_device_id *pci_match_id(const struct pci_device_i { return NULL; } #endif /* CONFIG_PCI */ +#ifdef CONFIG_PCI_ATS +/* Address Translation Service */ +void pci_ats_init(struct pci_dev *dev); +int pci_enable_ats(struct pci_dev *dev, int ps); +void pci_disable_ats(struct pci_dev *dev); +int pci_ats_queue_depth(struct pci_dev *dev); +int pci_ats_page_aligned(struct pci_dev *dev); +#else +static inline void pci_ats_init(struct pci_dev *d) { } +static inline int pci_enable_ats(struct pci_dev *d, int ps) { return -ENODEV; } +static inline void pci_disable_ats(struct pci_dev *d) { } +static inline int pci_ats_queue_depth(struct pci_dev *d) { return -ENODEV; } +static inline int pci_ats_page_aligned(struct pci_dev *dev) { return 0; } +#endif + /* Include architecture-dependent settings and functions */ #include -- cgit v1.2.3 From b9ae16d80a357c88fcb7ff6831cfdc196f0a34dd Mon Sep 17 00:00:00 2001 From: Jean-Philippe Brucker Date: Wed, 17 Apr 2019 19:24:41 +0100 Subject: PCI: Add a stub for pci_ats_disabled() Currently pci_ats_disabled() is only defined when CONFIG_PCI is enabled. Since we're about to use the function in the Arm SMMUv3 driver, which could be built with CONFIG_PCI disabled, add a definition of pci_ats_disabled() for !CONFIG_PCI. Acked-by: Bjorn Helgaas Signed-off-by: Jean-Philippe Brucker Signed-off-by: Will Deacon --- include/linux/pci.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pci.h b/include/linux/pci.h index 169c6a18d0b0..61d7cd888bad 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1713,6 +1713,7 @@ static inline int pci_irqd_intx_xlate(struct irq_domain *d, static inline const struct pci_device_id *pci_match_id(const struct pci_device_id *ids, struct pci_dev *dev) { return NULL; } +static inline bool pci_ats_disabled(void) { return true; } #endif /* CONFIG_PCI */ #ifdef CONFIG_PCI_ATS -- cgit v1.2.3 From 5702ee24182f9b3e33476b74b5c92a4f913ad9bd Mon Sep 17 00:00:00 2001 From: Jean-Philippe Brucker Date: Wed, 17 Apr 2019 19:24:42 +0100 Subject: ACPI/IORT: Check ATS capability in root complex nodes Root complex node in IORT has a bit telling whether it supports ATS or not. Store this bit in the IOMMU fwspec when setting up a device, so it can be accessed later by an IOMMU driver. In the future we'll probably want to store this bit at the host bridge or SMMU rather than in each endpoint. Acked-by: Lorenzo Pieralisi Signed-off-by: Jean-Philippe Brucker Signed-off-by: Will Deacon --- include/linux/iommu.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/iommu.h b/include/linux/iommu.h index ffbbc7e39cee..6c1b4c900191 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -392,10 +392,14 @@ struct iommu_fwspec { const struct iommu_ops *ops; struct fwnode_handle *iommu_fwnode; void *iommu_priv; + u32 flags; unsigned int num_ids; u32 ids[1]; }; +/* ATS is supported */ +#define IOMMU_FWSPEC_PCI_RC_ATS (1 << 0) + int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, const struct iommu_ops *ops); void iommu_fwspec_free(struct device *dev); -- cgit v1.2.3 From 13e0b4059b984a1c63cae5604e1f665472751ea1 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Sat, 26 Jan 2019 00:49:19 +0100 Subject: clocksource/drivers/ixp4xx: Add driver This adds a new slightly rewritten timer driver for the Intel IXP4xx clocksource, clockevent and delay timer. Cc: Daniel Lezcano Cc: Thomas Gleixner Signed-off-by: Linus Walleij --- include/linux/platform_data/timer-ixp4xx.h | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 include/linux/platform_data/timer-ixp4xx.h (limited to 'include/linux') diff --git a/include/linux/platform_data/timer-ixp4xx.h b/include/linux/platform_data/timer-ixp4xx.h new file mode 100644 index 000000000000..ee92ae7edaed --- /dev/null +++ b/include/linux/platform_data/timer-ixp4xx.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __TIMER_IXP4XX_H +#define __TIMER_IXP4XX_H + +#include + +void __init ixp4xx_timer_setup(resource_size_t timerbase, + int timer_irq, + unsigned int timer_freq); + +#endif -- cgit v1.2.3 From 4af20dc583b364fad45df6fb81873606af8b70fb Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Sun, 10 Feb 2019 14:55:58 +0100 Subject: ARM: ixp4xx: Move IXP4xx QMGR and NPE headers This moves the IXP4xx Queue Manager and Network Processing Engine headers out of the include path as that is incompatible with multiplatform. Signed-off-by: Linus Walleij --- include/linux/soc/ixp4xx/npe.h | 40 ++++++++ include/linux/soc/ixp4xx/qmgr.h | 204 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 244 insertions(+) create mode 100644 include/linux/soc/ixp4xx/npe.h create mode 100644 include/linux/soc/ixp4xx/qmgr.h (limited to 'include/linux') diff --git a/include/linux/soc/ixp4xx/npe.h b/include/linux/soc/ixp4xx/npe.h new file mode 100644 index 000000000000..3a980845e557 --- /dev/null +++ b/include/linux/soc/ixp4xx/npe.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __IXP4XX_NPE_H +#define __IXP4XX_NPE_H + +#include + +extern const char *npe_names[]; + +struct npe_regs { + u32 exec_addr, exec_data, exec_status_cmd, exec_count; + u32 action_points[4]; + u32 watchpoint_fifo, watch_count; + u32 profile_count; + u32 messaging_status, messaging_control; + u32 mailbox_status, /*messaging_*/ in_out_fifo; +}; + +struct npe { + struct resource *mem_res; + struct npe_regs __iomem *regs; + u32 regs_phys; + int id; + int valid; +}; + + +static inline const char *npe_name(struct npe *npe) +{ + return npe_names[npe->id]; +} + +int npe_running(struct npe *npe); +int npe_send_message(struct npe *npe, const void *msg, const char *what); +int npe_recv_message(struct npe *npe, void *msg, const char *what); +int npe_send_recv_message(struct npe *npe, void *msg, const char *what); +int npe_load_firmware(struct npe *npe, const char *name, struct device *dev); +struct npe *npe_request(unsigned id); +void npe_release(struct npe *npe); + +#endif /* __IXP4XX_NPE_H */ diff --git a/include/linux/soc/ixp4xx/qmgr.h b/include/linux/soc/ixp4xx/qmgr.h new file mode 100644 index 000000000000..4de8da536dbb --- /dev/null +++ b/include/linux/soc/ixp4xx/qmgr.h @@ -0,0 +1,204 @@ +/* + * Copyright (C) 2007 Krzysztof Halasa + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License + * as published by the Free Software Foundation. + */ + +#ifndef IXP4XX_QMGR_H +#define IXP4XX_QMGR_H + +#include +#include + +#define DEBUG_QMGR 0 + +#define HALF_QUEUES 32 +#define QUEUES 64 +#define MAX_QUEUE_LENGTH 4 /* in dwords */ + +#define QUEUE_STAT1_EMPTY 1 /* queue status bits */ +#define QUEUE_STAT1_NEARLY_EMPTY 2 +#define QUEUE_STAT1_NEARLY_FULL 4 +#define QUEUE_STAT1_FULL 8 +#define QUEUE_STAT2_UNDERFLOW 1 +#define QUEUE_STAT2_OVERFLOW 2 + +#define QUEUE_WATERMARK_0_ENTRIES 0 +#define QUEUE_WATERMARK_1_ENTRY 1 +#define QUEUE_WATERMARK_2_ENTRIES 2 +#define QUEUE_WATERMARK_4_ENTRIES 3 +#define QUEUE_WATERMARK_8_ENTRIES 4 +#define QUEUE_WATERMARK_16_ENTRIES 5 +#define QUEUE_WATERMARK_32_ENTRIES 6 +#define QUEUE_WATERMARK_64_ENTRIES 7 + +/* queue interrupt request conditions */ +#define QUEUE_IRQ_SRC_EMPTY 0 +#define QUEUE_IRQ_SRC_NEARLY_EMPTY 1 +#define QUEUE_IRQ_SRC_NEARLY_FULL 2 +#define QUEUE_IRQ_SRC_FULL 3 +#define QUEUE_IRQ_SRC_NOT_EMPTY 4 +#define QUEUE_IRQ_SRC_NOT_NEARLY_EMPTY 5 +#define QUEUE_IRQ_SRC_NOT_NEARLY_FULL 6 +#define QUEUE_IRQ_SRC_NOT_FULL 7 + +struct qmgr_regs { + u32 acc[QUEUES][MAX_QUEUE_LENGTH]; /* 0x000 - 0x3FF */ + u32 stat1[4]; /* 0x400 - 0x40F */ + u32 stat2[2]; /* 0x410 - 0x417 */ + u32 statne_h; /* 0x418 - queue nearly empty */ + u32 statf_h; /* 0x41C - queue full */ + u32 irqsrc[4]; /* 0x420 - 0x42F IRC source */ + u32 irqen[2]; /* 0x430 - 0x437 IRQ enabled */ + u32 irqstat[2]; /* 0x438 - 0x43F - IRQ access only */ + u32 reserved[1776]; + u32 sram[2048]; /* 0x2000 - 0x3FFF - config and buffer */ +}; + +void qmgr_set_irq(unsigned int queue, int src, + void (*handler)(void *pdev), void *pdev); +void qmgr_enable_irq(unsigned int queue); +void qmgr_disable_irq(unsigned int queue); + +/* request_ and release_queue() must be called from non-IRQ context */ + +#if DEBUG_QMGR +extern char qmgr_queue_descs[QUEUES][32]; + +int qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */, + unsigned int nearly_empty_watermark, + unsigned int nearly_full_watermark, + const char *desc_format, const char* name); +#else +int __qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */, + unsigned int nearly_empty_watermark, + unsigned int nearly_full_watermark); +#define qmgr_request_queue(queue, len, nearly_empty_watermark, \ + nearly_full_watermark, desc_format, name) \ + __qmgr_request_queue(queue, len, nearly_empty_watermark, \ + nearly_full_watermark) +#endif + +void qmgr_release_queue(unsigned int queue); + + +static inline void qmgr_put_entry(unsigned int queue, u32 val) +{ + struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; +#if DEBUG_QMGR + BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */ + + printk(KERN_DEBUG "Queue %s(%i) put %X\n", + qmgr_queue_descs[queue], queue, val); +#endif + __raw_writel(val, &qmgr_regs->acc[queue][0]); +} + +static inline u32 qmgr_get_entry(unsigned int queue) +{ + u32 val; + const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; + val = __raw_readl(&qmgr_regs->acc[queue][0]); +#if DEBUG_QMGR + BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */ + + printk(KERN_DEBUG "Queue %s(%i) get %X\n", + qmgr_queue_descs[queue], queue, val); +#endif + return val; +} + +static inline int __qmgr_get_stat1(unsigned int queue) +{ + const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; + return (__raw_readl(&qmgr_regs->stat1[queue >> 3]) + >> ((queue & 7) << 2)) & 0xF; +} + +static inline int __qmgr_get_stat2(unsigned int queue) +{ + const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; + BUG_ON(queue >= HALF_QUEUES); + return (__raw_readl(&qmgr_regs->stat2[queue >> 4]) + >> ((queue & 0xF) << 1)) & 0x3; +} + +/** + * qmgr_stat_empty() - checks if a hardware queue is empty + * @queue: queue number + * + * Returns non-zero value if the queue is empty. + */ +static inline int qmgr_stat_empty(unsigned int queue) +{ + BUG_ON(queue >= HALF_QUEUES); + return __qmgr_get_stat1(queue) & QUEUE_STAT1_EMPTY; +} + +/** + * qmgr_stat_below_low_watermark() - checks if a queue is below low watermark + * @queue: queue number + * + * Returns non-zero value if the queue is below low watermark. + */ +static inline int qmgr_stat_below_low_watermark(unsigned int queue) +{ + const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; + if (queue >= HALF_QUEUES) + return (__raw_readl(&qmgr_regs->statne_h) >> + (queue - HALF_QUEUES)) & 0x01; + return __qmgr_get_stat1(queue) & QUEUE_STAT1_NEARLY_EMPTY; +} + +/** + * qmgr_stat_above_high_watermark() - checks if a queue is above high watermark + * @queue: queue number + * + * Returns non-zero value if the queue is above high watermark + */ +static inline int qmgr_stat_above_high_watermark(unsigned int queue) +{ + BUG_ON(queue >= HALF_QUEUES); + return __qmgr_get_stat1(queue) & QUEUE_STAT1_NEARLY_FULL; +} + +/** + * qmgr_stat_full() - checks if a hardware queue is full + * @queue: queue number + * + * Returns non-zero value if the queue is full. + */ +static inline int qmgr_stat_full(unsigned int queue) +{ + const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; + if (queue >= HALF_QUEUES) + return (__raw_readl(&qmgr_regs->statf_h) >> + (queue - HALF_QUEUES)) & 0x01; + return __qmgr_get_stat1(queue) & QUEUE_STAT1_FULL; +} + +/** + * qmgr_stat_underflow() - checks if a hardware queue experienced underflow + * @queue: queue number + * + * Returns non-zero value if the queue experienced underflow. + */ +static inline int qmgr_stat_underflow(unsigned int queue) +{ + return __qmgr_get_stat2(queue) & QUEUE_STAT2_UNDERFLOW; +} + +/** + * qmgr_stat_overflow() - checks if a hardware queue experienced overflow + * @queue: queue number + * + * Returns non-zero value if the queue experienced overflow. + */ +static inline int qmgr_stat_overflow(unsigned int queue) +{ + return __qmgr_get_stat2(queue) & QUEUE_STAT2_OVERFLOW; +} + +#endif -- cgit v1.2.3 From 0b458d7b10f83eb34b84957e6cf47cee2a97bc49 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Sun, 10 Feb 2019 19:35:08 +0100 Subject: soc: ixp4xx: npe: Pass addresses as resources Instead of using hardcoded base addresses implicitly obtained through , pass the physical base for the three NPE blocks as memory resources and remap these in the driver. Drop the memory request region business, this will anyways be done by devm_* remapping functions. Signed-off-by: Linus Walleij --- include/linux/soc/ixp4xx/npe.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/soc/ixp4xx/npe.h b/include/linux/soc/ixp4xx/npe.h index 3a980845e557..2a91f465d456 100644 --- a/include/linux/soc/ixp4xx/npe.h +++ b/include/linux/soc/ixp4xx/npe.h @@ -16,9 +16,7 @@ struct npe_regs { }; struct npe { - struct resource *mem_res; struct npe_regs __iomem *regs; - u32 regs_phys; int id; int valid; }; -- cgit v1.2.3 From d08502f245f985df54be57eaac13c72907b0a3a7 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Sun, 10 Feb 2019 20:15:11 +0100 Subject: soc: ixp4xx: Uninline several functions These inline functions immediately exploit the static ioremaps for the queue manager memory region. This does not work with multiplatform where everything need to be dynamically remapped, so get rid of these inlines and create new exports for those used by other drivers. Signed-off-by: Linus Walleij --- include/linux/soc/ixp4xx/qmgr.h | 127 +++------------------------------------- 1 file changed, 7 insertions(+), 120 deletions(-) (limited to 'include/linux') diff --git a/include/linux/soc/ixp4xx/qmgr.h b/include/linux/soc/ixp4xx/qmgr.h index 4de8da536dbb..bed8ee94fa57 100644 --- a/include/linux/soc/ixp4xx/qmgr.h +++ b/include/linux/soc/ixp4xx/qmgr.h @@ -57,6 +57,13 @@ struct qmgr_regs { u32 sram[2048]; /* 0x2000 - 0x3FFF - config and buffer */ }; +void qmgr_put_entry(unsigned int queue, u32 val); +u32 qmgr_get_entry(unsigned int queue); +int qmgr_stat_empty(unsigned int queue); +int qmgr_stat_below_low_watermark(unsigned int queue); +int qmgr_stat_full(unsigned int queue); +int qmgr_stat_overflow(unsigned int queue); +void qmgr_release_queue(unsigned int queue); void qmgr_set_irq(unsigned int queue, int src, void (*handler)(void *pdev), void *pdev); void qmgr_enable_irq(unsigned int queue); @@ -81,124 +88,4 @@ int __qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */, nearly_full_watermark) #endif -void qmgr_release_queue(unsigned int queue); - - -static inline void qmgr_put_entry(unsigned int queue, u32 val) -{ - struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; -#if DEBUG_QMGR - BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */ - - printk(KERN_DEBUG "Queue %s(%i) put %X\n", - qmgr_queue_descs[queue], queue, val); -#endif - __raw_writel(val, &qmgr_regs->acc[queue][0]); -} - -static inline u32 qmgr_get_entry(unsigned int queue) -{ - u32 val; - const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; - val = __raw_readl(&qmgr_regs->acc[queue][0]); -#if DEBUG_QMGR - BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */ - - printk(KERN_DEBUG "Queue %s(%i) get %X\n", - qmgr_queue_descs[queue], queue, val); -#endif - return val; -} - -static inline int __qmgr_get_stat1(unsigned int queue) -{ - const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; - return (__raw_readl(&qmgr_regs->stat1[queue >> 3]) - >> ((queue & 7) << 2)) & 0xF; -} - -static inline int __qmgr_get_stat2(unsigned int queue) -{ - const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; - BUG_ON(queue >= HALF_QUEUES); - return (__raw_readl(&qmgr_regs->stat2[queue >> 4]) - >> ((queue & 0xF) << 1)) & 0x3; -} - -/** - * qmgr_stat_empty() - checks if a hardware queue is empty - * @queue: queue number - * - * Returns non-zero value if the queue is empty. - */ -static inline int qmgr_stat_empty(unsigned int queue) -{ - BUG_ON(queue >= HALF_QUEUES); - return __qmgr_get_stat1(queue) & QUEUE_STAT1_EMPTY; -} - -/** - * qmgr_stat_below_low_watermark() - checks if a queue is below low watermark - * @queue: queue number - * - * Returns non-zero value if the queue is below low watermark. - */ -static inline int qmgr_stat_below_low_watermark(unsigned int queue) -{ - const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; - if (queue >= HALF_QUEUES) - return (__raw_readl(&qmgr_regs->statne_h) >> - (queue - HALF_QUEUES)) & 0x01; - return __qmgr_get_stat1(queue) & QUEUE_STAT1_NEARLY_EMPTY; -} - -/** - * qmgr_stat_above_high_watermark() - checks if a queue is above high watermark - * @queue: queue number - * - * Returns non-zero value if the queue is above high watermark - */ -static inline int qmgr_stat_above_high_watermark(unsigned int queue) -{ - BUG_ON(queue >= HALF_QUEUES); - return __qmgr_get_stat1(queue) & QUEUE_STAT1_NEARLY_FULL; -} - -/** - * qmgr_stat_full() - checks if a hardware queue is full - * @queue: queue number - * - * Returns non-zero value if the queue is full. - */ -static inline int qmgr_stat_full(unsigned int queue) -{ - const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; - if (queue >= HALF_QUEUES) - return (__raw_readl(&qmgr_regs->statf_h) >> - (queue - HALF_QUEUES)) & 0x01; - return __qmgr_get_stat1(queue) & QUEUE_STAT1_FULL; -} - -/** - * qmgr_stat_underflow() - checks if a hardware queue experienced underflow - * @queue: queue number - * - * Returns non-zero value if the queue experienced underflow. - */ -static inline int qmgr_stat_underflow(unsigned int queue) -{ - return __qmgr_get_stat2(queue) & QUEUE_STAT2_UNDERFLOW; -} - -/** - * qmgr_stat_overflow() - checks if a hardware queue experienced overflow - * @queue: queue number - * - * Returns non-zero value if the queue experienced overflow. - */ -static inline int qmgr_stat_overflow(unsigned int queue) -{ - return __qmgr_get_stat2(queue) & QUEUE_STAT2_OVERFLOW; -} - #endif -- cgit v1.2.3 From c9121cf637331b6fc07a60708c6ca0a161e7deb5 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 20 Apr 2019 13:21:56 +0200 Subject: HID: logitech-dj: add support for 27 MHz receivers Most Logitech wireless keyboard and mice using the 27 MHz are hidpp10 devices, add support to logitech-dj for their receivers. Doing so leads to 2 improvements: 1) All these devices share the same USB product-id for their receiver, making it impossible to properly map some special keys / buttons which differ from device to device. Adding support to logitech-dj to see these as hidpp10 devices allows us to get the actual device-id from the keyboard / mouse. 2) It enables battery-monitoring of these devices This patch uses a new HID group for 27Mhz devices, since the logitech-hidpp code needs to be able to differentiate them from other devices instantiated by the logitech-dj code. Signed-off-by: Hans de Goede Signed-off-by: Benjamin Tissoires --- include/linux/hid.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/hid.h b/include/linux/hid.h index f9707d1dcb58..9f161fa5cbd4 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -382,6 +382,7 @@ struct hid_item { #define HID_GROUP_WACOM 0x0101 #define HID_GROUP_LOGITECH_DJ_DEVICE 0x0102 #define HID_GROUP_STEAM 0x0103 +#define HID_GROUP_LOGITECH_27MHZ_DEVICE 0x0104 /* * HID protocol status -- cgit v1.2.3 From 756e161993824961fad4ba62c40045d9ab65bdb8 Mon Sep 17 00:00:00 2001 From: Sean Wang Date: Fri, 8 Mar 2019 09:15:43 +0800 Subject: mmc: add SDIO identifiers for MediaTek Bluetooth devices The SDIO identifier for MediaTek Bluetooth devices were defined in the MediaTek Bluetooth driver. Moving the definitions in MMC header file seems common sense. Signed-off-by: Sean Wang Signed-off-by: Marcel Holtmann --- include/linux/mmc/sdio_ids.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h index 4332199c71c2..d1a5d5df02f5 100644 --- a/include/linux/mmc/sdio_ids.h +++ b/include/linux/mmc/sdio_ids.h @@ -59,6 +59,8 @@ #define SDIO_DEVICE_ID_MARVELL_8797_F0 0x9128 #define SDIO_DEVICE_ID_MARVELL_8887WLAN 0x9134 +#define SDIO_VENDOR_ID_MEDIATEK 0x037a + #define SDIO_VENDOR_ID_SIANO 0x039a #define SDIO_DEVICE_ID_SIANO_NOVA_B0 0x0201 #define SDIO_DEVICE_ID_SIANO_NICE 0x0202 -- cgit v1.2.3 From db0a390835209c1c5dce7669de3d23a8cba10f34 Mon Sep 17 00:00:00 2001 From: Sean Wang Date: Thu, 14 Mar 2019 05:01:58 +0800 Subject: mmc: sdio: Add helper macro for sdio_driver boilerplate This patch introduces the module_sdio_driver macro which is a convenience macro for SDIO driver modules similar to module_usb_driver. It is intended to be used by drivers which init/exit section does nothing but register/ unregister the SDIO driver. By using this macro it is possible to eliminate a few lines of boilerplate code per SDIO driver. Suggested-by: Marcel Holtmann Signed-off-by: Sean Wang Acked-by: Ulf Hansson Signed-off-by: Marcel Holtmann --- include/linux/mmc/sdio_func.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h index 97ca105347a6..5685805533b5 100644 --- a/include/linux/mmc/sdio_func.h +++ b/include/linux/mmc/sdio_func.h @@ -111,6 +111,18 @@ struct sdio_driver { extern int sdio_register_driver(struct sdio_driver *); extern void sdio_unregister_driver(struct sdio_driver *); +/** + * module_sdio_driver() - Helper macro for registering a SDIO driver + * @__sdio_driver: sdio_driver struct + * + * Helper macro for SDIO drivers which do not do anything special in module + * init/exit. This eliminates a lot of boilerplate. Each module may only + * use this macro once, and calling it replaces module_init() and module_exit() + */ +#define module_sdio_driver(__sdio_driver) \ + module_driver(__sdio_driver, sdio_register_driver, \ + sdio_unregister_driver) + /* * SDIO I/O operations */ -- cgit v1.2.3 From 089b19a9204fc090793d389a265f54124eacb05d Mon Sep 17 00:00:00 2001 From: Stanislav Fomichev Date: Mon, 22 Apr 2019 08:55:44 -0700 Subject: flow_dissector: switch kernel context to struct bpf_flow_dissector struct bpf_flow_dissector has a small subset of sk_buff fields that flow dissector BPF program is allowed to access and an optional pointer to real skb. Real skb is used only in bpf_skb_load_bytes helper to read non-linear data. The real motivation for this is to be able to call flow dissector from eth_get_headlen context where we don't have an skb and need to dissect raw bytes. Signed-off-by: Stanislav Fomichev Signed-off-by: Daniel Borkmann --- include/linux/skbuff.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 6f42942a443b..2b7b8228c5c3 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1275,6 +1275,10 @@ static inline int skb_flow_dissector_bpf_prog_detach(const union bpf_attr *attr) } #endif +struct bpf_flow_dissector; +bool bpf_flow_dissect(struct bpf_prog *prog, struct bpf_flow_dissector *ctx, + __be16 proto, int nhoff, int hlen); + struct bpf_flow_keys; bool __skb_flow_bpf_dissect(struct bpf_prog *prog, const struct sk_buff *skb, -- cgit v1.2.3 From 3cbf4ffba5eeec60f82868a5facc1962d8a44d00 Mon Sep 17 00:00:00 2001 From: Stanislav Fomichev Date: Mon, 22 Apr 2019 08:55:46 -0700 Subject: net: plumb network namespace into __skb_flow_dissect This new argument will be used in the next patches for the eth_get_headlen use case. eth_get_headlen calls flow dissector with only data (without skb) so there is currently no way to pull attached BPF flow dissector program. With this new argument, we can amend the callers to explicitly pass network namespace so we can use attached BPF program. Signed-off-by: Stanislav Fomichev Reviewed-by: Saeed Mahameed Signed-off-by: Daniel Borkmann --- include/linux/skbuff.h | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 2b7b8228c5c3..b466fbface2e 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1284,7 +1284,8 @@ bool __skb_flow_bpf_dissect(struct bpf_prog *prog, const struct sk_buff *skb, struct flow_dissector *flow_dissector, struct bpf_flow_keys *flow_keys); -bool __skb_flow_dissect(const struct sk_buff *skb, +bool __skb_flow_dissect(const struct net *net, + const struct sk_buff *skb, struct flow_dissector *flow_dissector, void *target_container, void *data, __be16 proto, int nhoff, int hlen, @@ -1294,8 +1295,8 @@ static inline bool skb_flow_dissect(const struct sk_buff *skb, struct flow_dissector *flow_dissector, void *target_container, unsigned int flags) { - return __skb_flow_dissect(skb, flow_dissector, target_container, - NULL, 0, 0, 0, flags); + return __skb_flow_dissect(NULL, skb, flow_dissector, + target_container, NULL, 0, 0, 0, flags); } static inline bool skb_flow_dissect_flow_keys(const struct sk_buff *skb, @@ -1303,18 +1304,19 @@ static inline bool skb_flow_dissect_flow_keys(const struct sk_buff *skb, unsigned int flags) { memset(flow, 0, sizeof(*flow)); - return __skb_flow_dissect(skb, &flow_keys_dissector, flow, - NULL, 0, 0, 0, flags); + return __skb_flow_dissect(NULL, skb, &flow_keys_dissector, + flow, NULL, 0, 0, 0, flags); } static inline bool -skb_flow_dissect_flow_keys_basic(const struct sk_buff *skb, +skb_flow_dissect_flow_keys_basic(const struct net *net, + const struct sk_buff *skb, struct flow_keys_basic *flow, void *data, __be16 proto, int nhoff, int hlen, unsigned int flags) { memset(flow, 0, sizeof(*flow)); - return __skb_flow_dissect(skb, &flow_keys_basic_dissector, flow, + return __skb_flow_dissect(net, skb, &flow_keys_basic_dissector, flow, data, proto, nhoff, hlen, flags); } @@ -2492,7 +2494,8 @@ static inline void skb_probe_transport_header(struct sk_buff *skb) if (skb_transport_header_was_set(skb)) return; - if (skb_flow_dissect_flow_keys_basic(skb, &keys, NULL, 0, 0, 0, 0)) + if (skb_flow_dissect_flow_keys_basic(NULL, skb, &keys, + NULL, 0, 0, 0, 0)) skb_set_transport_header(skb, keys.control.thoff); } -- cgit v1.2.3 From 9b52e3f267a6835efd50ed9002d530666d16a411 Mon Sep 17 00:00:00 2001 From: Stanislav Fomichev Date: Mon, 22 Apr 2019 08:55:47 -0700 Subject: flow_dissector: handle no-skb use case When called without skb, gather all required data from the __skb_flow_dissect's arguments and use recently introduces no-skb mode of bpf flow dissector. Note: WARN_ON_ONCE(!net) will now trigger for eth_get_headlen users. Signed-off-by: Stanislav Fomichev Signed-off-by: Daniel Borkmann --- include/linux/skbuff.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index b466fbface2e..998256c2820b 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1279,11 +1279,6 @@ struct bpf_flow_dissector; bool bpf_flow_dissect(struct bpf_prog *prog, struct bpf_flow_dissector *ctx, __be16 proto, int nhoff, int hlen); -struct bpf_flow_keys; -bool __skb_flow_bpf_dissect(struct bpf_prog *prog, - const struct sk_buff *skb, - struct flow_dissector *flow_dissector, - struct bpf_flow_keys *flow_keys); bool __skb_flow_dissect(const struct net *net, const struct sk_buff *skb, struct flow_dissector *flow_dissector, -- cgit v1.2.3 From c43f1255b866b423d2381f77eaa2cbc64a9c49aa Mon Sep 17 00:00:00 2001 From: Stanislav Fomichev Date: Mon, 22 Apr 2019 08:55:48 -0700 Subject: net: pass net_device argument to the eth_get_headlen Update all users of eth_get_headlen to pass network device, fetch network namespace from it and pass it down to the flow dissector. This commit is a noop until administrator inserts BPF flow dissector program. Cc: Maxim Krasnyansky Cc: Saeed Mahameed Cc: Jeff Kirsher Cc: intel-wired-lan@lists.osuosl.org Cc: Yisen Zhuang Cc: Salil Mehta Cc: Michael Chan Cc: Igor Russkikh Signed-off-by: Stanislav Fomichev Signed-off-by: Daniel Borkmann --- include/linux/etherdevice.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index e2f3b21cd72a..c6c1930e28a0 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -33,7 +33,7 @@ struct device; int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr); unsigned char *arch_get_platform_mac_address(void); int nvmem_get_mac_address(struct device *dev, void *addrbuf); -u32 eth_get_headlen(void *data, unsigned int max_len); +u32 eth_get_headlen(const struct net_device *dev, void *data, unsigned int len); __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev); extern const struct header_ops eth_header_ops; -- cgit v1.2.3 From a93f7fe134543649cf2e2d8fc2c50a8f4d742915 Mon Sep 17 00:00:00 2001 From: Jian Shen Date: Mon, 22 Apr 2019 21:52:23 +0800 Subject: net: phy: marvell: add new default led configure for m88e151x The default m88e151x LED configuration is 0x1177, used LED[0] for 1000M link, LED[1] for 100M link, and LED[2] for active. But for some boards, which use LED[0] for link, and LED[1] for active, prefer to be 0x1040. To be compatible with this case, this patch defines a new dev_flag, and set it before connect phy in HNS3 driver. When phy initializing, using the new LED configuration if this dev_flag is set. Signed-off-by: Jian Shen Signed-off-by: Huazhong Tan Signed-off-by: David S. Miller --- include/linux/marvell_phy.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/marvell_phy.h b/include/linux/marvell_phy.h index 73d04743a2bb..af6b11d4d673 100644 --- a/include/linux/marvell_phy.h +++ b/include/linux/marvell_phy.h @@ -34,5 +34,6 @@ /* struct phy_device dev_flags definitions */ #define MARVELL_PHY_M1145_FLAGS_RESISTANCE 0x00000001 #define MARVELL_PHY_M1118_DNS323_LEDS 0x00000002 +#define MARVELL_PHY_LED0_LINK_LED1_ACTIVE 0x00000004 #endif /* _MARVELL_PHY_H */ -- cgit v1.2.3 From 434d69fad63b443d7afc8aa99264359c9b4e2d3a Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Thu, 18 Apr 2019 13:12:04 +0200 Subject: clk: divider: add explicit big endian support Add a clock specific flag to switch register accesses to big endian, to allow runtime configuration of big endian divider clocks. Signed-off-by: Jonas Gorski Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index b7cf80a71293..f0abdfbe3d60 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -417,6 +417,9 @@ struct clk_div_table { * CLK_DIVIDER_MAX_AT_ZERO - For dividers which are like CLK_DIVIDER_ONE_BASED * except when the value read from the register is zero, the divisor is * 2^width of the field. + * CLK_DIVIDER_BIG_ENDIAN - By default little endian register accesses are used + * for the divider register. Setting this flag makes the register accesses + * big endian. */ struct clk_divider { struct clk_hw hw; @@ -438,6 +441,7 @@ struct clk_divider { #define CLK_DIVIDER_ROUND_CLOSEST BIT(4) #define CLK_DIVIDER_READ_ONLY BIT(5) #define CLK_DIVIDER_MAX_AT_ZERO BIT(6) +#define CLK_DIVIDER_BIG_ENDIAN BIT(7) extern const struct clk_ops clk_divider_ops; extern const struct clk_ops clk_divider_ro_ops; -- cgit v1.2.3 From 58a2b4c9bdf98452fec95bb1a5eeed60c01f621a Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Thu, 18 Apr 2019 13:12:05 +0200 Subject: clk: fractional-divider: add explicit big endian support Add a clock specific flag to switch register accesses to big endian, to allow runtime configuration of big endian fractional divider clocks. Signed-off-by: Jonas Gorski Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index f0abdfbe3d60..7c6861995505 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -606,6 +606,9 @@ void clk_hw_unregister_fixed_factor(struct clk_hw *hw); * is the value read from the register. If CLK_FRAC_DIVIDER_ZERO_BASED * is set then the numerator and denominator are both the value read * plus one. + * CLK_FRAC_DIVIDER_BIG_ENDIAN - By default little endian register accesses are + * used for the divider register. Setting this flag makes the register + * accesses big endian. */ struct clk_fractional_divider { struct clk_hw hw; @@ -626,6 +629,7 @@ struct clk_fractional_divider { #define to_clk_fd(_hw) container_of(_hw, struct clk_fractional_divider, hw) #define CLK_FRAC_DIVIDER_ZERO_BASED BIT(0) +#define CLK_FRAC_DIVIDER_BIG_ENDIAN BIT(1) extern const struct clk_ops clk_fractional_divider_ops; struct clk *clk_register_fractional_divider(struct device *dev, -- cgit v1.2.3 From d1c8a501ec07290da5cc2d8dedb6692cf89078d8 Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Thu, 18 Apr 2019 13:12:06 +0200 Subject: clk: gate: add explicit big endian support Add a clock specific flag to switch register accesses to big endian, to allow runtime configuration of big endian gated clocks. Signed-off-by: Jonas Gorski Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 7c6861995505..7d5a32d83655 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -349,6 +349,9 @@ void of_fixed_clk_setup(struct device_node *np); * of this register, and mask of gate bits are in higher 16-bit of this * register. While setting the gate bits, higher 16-bit should also be * updated to indicate changing gate bits. + * CLK_GATE_BIG_ENDIAN - by default little endian register accesses are used for + * the gate register. Setting this flag makes the register accesses big + * endian. */ struct clk_gate { struct clk_hw hw; @@ -362,6 +365,7 @@ struct clk_gate { #define CLK_GATE_SET_TO_DISABLE BIT(0) #define CLK_GATE_HIWORD_MASK BIT(1) +#define CLK_GATE_BIG_ENDIAN BIT(2) extern const struct clk_ops clk_gate_ops; struct clk *clk_register_gate(struct device *dev, const char *name, -- cgit v1.2.3 From 9427b71a850581112538c0b92f444d19a7aae28b Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Thu, 18 Apr 2019 13:12:07 +0200 Subject: clk: multiplier: add explicit big endian support Add a clock specific flag to switch register accesses to big endian, to allow runtime configuration of big endian multiplier clocks. Signed-off-by: Jonas Gorski Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 7d5a32d83655..0bc6d6f80b1a 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -666,6 +666,9 @@ void clk_hw_unregister_fractional_divider(struct clk_hw *hw); * leaving the parent rate unmodified. * CLK_MULTIPLIER_ROUND_CLOSEST - Makes the best calculated divider to be * rounded to the closest integer instead of the down one. + * CLK_MULTIPLIER_BIG_ENDIAN - By default little endian register accesses are + * used for the multiplier register. Setting this flag makes the register + * accesses big endian. */ struct clk_multiplier { struct clk_hw hw; @@ -680,6 +683,7 @@ struct clk_multiplier { #define CLK_MULTIPLIER_ZERO_BYPASS BIT(0) #define CLK_MULTIPLIER_ROUND_CLOSEST BIT(1) +#define CLK_MULTIPLIER_BIG_ENDIAN BIT(2) extern const struct clk_ops clk_multiplier_ops; -- cgit v1.2.3 From 3a727519651228d92793291516727d62c6887607 Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Thu, 18 Apr 2019 13:12:08 +0200 Subject: clk: mux: add explicit big endian support Add a clock specific flag to switch register accesses to big endian, to allow runtime configuration of big endian mux clocks. Signed-off-by: Jonas Gorski Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 0bc6d6f80b1a..4ae2257b63c6 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -509,6 +509,9 @@ void clk_hw_unregister_divider(struct clk_hw *hw); * indicate changing mux bits. * CLK_MUX_ROUND_CLOSEST - Use the parent rate that is closest to the desired * frequency. + * CLK_MUX_BIG_ENDIAN - By default little endian register accesses are used for + * the mux register. Setting this flag makes the register accesses big + * endian. */ struct clk_mux { struct clk_hw hw; @@ -527,6 +530,7 @@ struct clk_mux { #define CLK_MUX_HIWORD_MASK BIT(2) #define CLK_MUX_READ_ONLY BIT(3) /* mux can't be changed */ #define CLK_MUX_ROUND_CLOSEST BIT(4) +#define CLK_MUX_BIG_ENDIAN BIT(5) extern const struct clk_ops clk_mux_ops; extern const struct clk_ops clk_mux_ro_ops; -- cgit v1.2.3 From f122498703d65c7dc8a4a15abed6405cc256269e Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Thu, 18 Apr 2019 13:12:10 +0200 Subject: clk: core: remove powerpc special handling Now that the powerpc clocks are properly marked as big endian, we can remove the special handling for PowerPC. Signed-off-by: Jonas Gorski Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 4ae2257b63c6..c767a9321f15 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -1018,20 +1018,6 @@ static inline int of_clk_detect_critical(struct device_node *np, int index, * for improved portability across platforms */ -#if IS_ENABLED(CONFIG_PPC) - -static inline u32 clk_readl(u32 __iomem *reg) -{ - return ioread32be(reg); -} - -static inline void clk_writel(u32 val, u32 __iomem *reg) -{ - iowrite32be(val, reg); -} - -#else /* platform dependent I/O accessors */ - static inline u32 clk_readl(u32 __iomem *reg) { return readl(reg); @@ -1042,8 +1028,6 @@ static inline void clk_writel(u32 val, u32 __iomem *reg) writel(val, reg); } -#endif /* platform dependent I/O accessors */ - void clk_gate_restore_context(struct clk_hw *hw); #endif /* CONFIG_COMMON_CLK */ -- cgit v1.2.3 From 5834fd75e6236605da8c439a64eaa33f3c8d02fe Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Thu, 18 Apr 2019 13:12:11 +0200 Subject: clk: core: replace clk_{readl,writel} with {readl,writel} Now that clk_{readl,writel} is just an alias for {readl,writel}, we can switch all users of clk_* to use the accessors directly and remove the helpers. Signed-off-by: Jonas Gorski [sboyd@kernel.org: Also convert renesas file so that this can be compile independently] Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index c767a9321f15..523318a60601 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -1013,21 +1013,6 @@ static inline int of_clk_detect_critical(struct device_node *np, int index, } #endif /* CONFIG_OF */ -/* - * wrap access to peripherals in accessor routines - * for improved portability across platforms - */ - -static inline u32 clk_readl(u32 __iomem *reg) -{ - return readl(reg); -} - -static inline void clk_writel(u32 val, u32 __iomem *reg) -{ - writel(val, reg); -} - void clk_gate_restore_context(struct clk_hw *hw); #endif /* CONFIG_COMMON_CLK */ -- cgit v1.2.3 From c2273219baa5097a4d7c1c162b992623534f34c1 Mon Sep 17 00:00:00 2001 From: Shay Agroskin Date: Thu, 14 Mar 2019 14:54:07 +0200 Subject: net/mlx5e: XDP, Inline small packets into the TX MPWQE in XDP xmit flow Upon high packet rate with multiple CPUs TX workloads, much of the HCA's resources are spent on prefetching TX descriptors, thus affecting transmission rates. This patch comes to mitigate this problem by moving some workload to the CPU and reducing the HW data prefetch overhead for small packets (<= 256B). When forwarding packets with XDP, a packet that is smaller than a certain size (set to ~256 bytes) would be sent inline within its WQE TX descrptor (mem-copied), when the hardware tx queue is congested beyond a pre-defined water-mark. This is added to better utilize the HW resources (which now makes one less packet data prefetch) and allow better scalability, on the account of CPU usage (which now 'memcpy's the packet into the WQE). To load balance between HW and CPU and get max packet rate, we use watermarks to detect how much the HW is congested and move the work loads back and forth between HW and CPU. Performance: Tested packet rate for UDP 64Byte multi-stream over two dual port ConnectX-5 100Gbps NICs. CPU: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz * Tested with hyper-threading disabled XDP_TX: | | before | after | | | 24 rings | 51Mpps | 116Mpps | +126% | | 1 ring | 12Mpps | 12Mpps | same | XDP_REDIRECT: ** Below is the transmit rate, not the redirection rate which might be larger, and is not affected by this patch. | | before | after | | | 32 rings | 64Mpps | 92Mpps | +43% | | 1 ring | 6.4Mpps | 6.4Mpps | same | As we can see, feature significantly improves scaling, without hurting single ring performance. Signed-off-by: Shay Agroskin Signed-off-by: Tariq Toukan Signed-off-by: Saeed Mahameed --- include/linux/mlx5/qp.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h index 0343c81d4c5f..3ba4edbd17a6 100644 --- a/include/linux/mlx5/qp.h +++ b/include/linux/mlx5/qp.h @@ -395,6 +395,7 @@ struct mlx5_wqe_signature_seg { struct mlx5_wqe_inline_seg { __be32 byte_count; + __be32 data[0]; }; enum mlx5_sig_type { -- cgit v1.2.3 From 87fcf12e846a5028c14d21a94a0712fd1ad5bad0 Mon Sep 17 00:00:00 2001 From: Alexandru Gagniuc Date: Fri, 19 Apr 2019 14:27:36 -0500 Subject: PCI/ACPI: Remove the need for 'struct hotplug_params' We used to first parse all the _HPP and _HPX tables before using the information to program registers of PCIe devices. Up through HPX Type 2, there was only one structure of each type, so we could cheat and store it on the stack. With HPX Type 3 we get an arbitrary number of entries, so the above model doesn't scale that well. Instead of parsing all tables at once, parse and program each entry separately. For _HPP and _HPX Types 0 through 2, this is functionally equivalent. The change enables the upcoming _HPX Type 3 to integrate more easily. Link: https://lore.kernel.org/lkml/20190208162414.3996-3-mr.nuke.me@gmail.com Signed-off-by: Alexandru Gagniuc [bhelgaas: fix build errors] Signed-off-by: Bjorn Helgaas --- include/linux/pci_hotplug.h | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h index 7acc9f91e72b..2c1e12b7ac00 100644 --- a/include/linux/pci_hotplug.h +++ b/include/linux/pci_hotplug.h @@ -124,26 +124,24 @@ struct hpp_type2 { u32 sec_unc_err_mask_or; }; -struct hotplug_params { - struct hpp_type0 *t0; /* Type0: NULL if not available */ - struct hpp_type1 *t1; /* Type1: NULL if not available */ - struct hpp_type2 *t2; /* Type2: NULL if not available */ - struct hpp_type0 type0_data; - struct hpp_type1 type1_data; - struct hpp_type2 type2_data; +struct hotplug_program_ops { + void (*program_type0)(struct pci_dev *dev, struct hpp_type0 *hpp); + void (*program_type1)(struct pci_dev *dev, struct hpp_type1 *hpp); + void (*program_type2)(struct pci_dev *dev, struct hpp_type2 *hpp); }; #ifdef CONFIG_ACPI #include -int pci_get_hp_params(struct pci_dev *dev, struct hotplug_params *hpp); +int pci_acpi_program_hp_params(struct pci_dev *dev, + const struct hotplug_program_ops *hp_ops); bool pciehp_is_native(struct pci_dev *bridge); int acpi_get_hp_hw_control_from_firmware(struct pci_dev *bridge); bool shpchp_is_native(struct pci_dev *bridge); int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle); int acpi_pci_detect_ejectable(acpi_handle handle); #else -static inline int pci_get_hp_params(struct pci_dev *dev, - struct hotplug_params *hpp) +static inline int pci_acpi_program_hp_params(struct pci_dev *dev, + const struct hotplug_program_ops *hp_ops) { return -ENODEV; } -- cgit v1.2.3 From f873c51a155aaa6dafdc00fa7fda3754f2f9f794 Mon Sep 17 00:00:00 2001 From: Alexandru Gagniuc Date: Fri, 8 Feb 2019 10:24:13 -0600 Subject: PCI/ACPI: Implement _HPX Type 3 Setting Record The _HPX Type 3 Setting Record is intended to be more generic and allow configuration of settings not possible with Type 2 records. For example, firmware could ensure that the completion timeout value is set accordingly throughout the PCI tree. Implement support for _HPX Type 3 Setting Records, which were added in the ACPI 6.3 spec. Link: https://lore.kernel.org/lkml/20190208162414.3996-4-mr.nuke.me@gmail.com Signed-off-by: Alexandru Gagniuc Signed-off-by: Bjorn Helgaas --- include/linux/pci_hotplug.h | 48 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h index 2c1e12b7ac00..f694eb2ca978 100644 --- a/include/linux/pci_hotplug.h +++ b/include/linux/pci_hotplug.h @@ -124,10 +124,58 @@ struct hpp_type2 { u32 sec_unc_err_mask_or; }; +/* + * _HPX PCI Express Setting Record (Type 3) + */ +struct hpx_type3 { + u16 device_type; + u16 function_type; + u16 config_space_location; + u16 pci_exp_cap_id; + u16 pci_exp_cap_ver; + u16 pci_exp_vendor_id; + u16 dvsec_id; + u16 dvsec_rev; + u16 match_offset; + u32 match_mask_and; + u32 match_value; + u16 reg_offset; + u32 reg_mask_and; + u32 reg_mask_or; +}; + struct hotplug_program_ops { void (*program_type0)(struct pci_dev *dev, struct hpp_type0 *hpp); void (*program_type1)(struct pci_dev *dev, struct hpp_type1 *hpp); void (*program_type2)(struct pci_dev *dev, struct hpp_type2 *hpp); + void (*program_type3)(struct pci_dev *dev, struct hpx_type3 *hpp); +}; + +enum hpx_type3_dev_type { + HPX_TYPE_ENDPOINT = BIT(0), + HPX_TYPE_LEG_END = BIT(1), + HPX_TYPE_RC_END = BIT(2), + HPX_TYPE_RC_EC = BIT(3), + HPX_TYPE_ROOT_PORT = BIT(4), + HPX_TYPE_UPSTREAM = BIT(5), + HPX_TYPE_DOWNSTREAM = BIT(6), + HPX_TYPE_PCI_BRIDGE = BIT(7), + HPX_TYPE_PCIE_BRIDGE = BIT(8), +}; + +enum hpx_type3_fn_type { + HPX_FN_NORMAL = BIT(0), + HPX_FN_SRIOV_PHYS = BIT(1), + HPX_FN_SRIOV_VIRT = BIT(2), +}; + +enum hpx_type3_cfg_loc { + HPX_CFG_PCICFG = 0, + HPX_CFG_PCIE_CAP = 1, + HPX_CFG_PCIE_CAP_EXT = 2, + HPX_CFG_VEND_CAP = 3, + HPX_CFG_DVSEC = 4, + HPX_CFG_MAX, }; #ifdef CONFIG_ACPI -- cgit v1.2.3 From ba11edc65065ffe38508aa76fdf7a7db15ad8161 Mon Sep 17 00:00:00 2001 From: Alexandru Gagniuc Date: Fri, 15 Mar 2019 14:29:40 -0500 Subject: PCI/ACPI: Advertise _HPX Type 3 support via _OSC _OSC now has a way to inform firmware that OS has the capability to interpret _HPX Type 3 setting records. This was added by the following PCI Firmware Specification ECN: ECN: _HPX and PCIe Completion Timeout related _OSC Enhancements Date: September 12, 2018 Affected Document: PCI Firmware Specification, Rev. 3.2 Signed-off-by: Alexandru Gagniuc Signed-off-by: Bjorn Helgaas --- include/linux/acpi.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index d5dcebd7aad3..b84bcd705fe1 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -513,7 +513,8 @@ extern bool osc_pc_lpi_support_confirmed; #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 #define OSC_PCI_MSI_SUPPORT 0x00000010 -#define OSC_PCI_SUPPORT_MASKS 0x0000001f +#define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 +#define OSC_PCI_SUPPORT_MASKS 0x0000011f /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 -- cgit v1.2.3 From d4645d30b50d1691c26ff0f8fa4e718b08f8d3bb Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Wed, 24 Apr 2019 10:52:53 +0200 Subject: smpboot: Place the __percpu annotation correctly The test robot reported a wrong assignment of a per-CPU variable which it detected by using sparse and sent a report. The assignment itself is correct. The annotation for sparse was wrong and hence the report. The first pointer is a "normal" pointer and points to the per-CPU memory area. That means that the __percpu annotation has to be moved. Move the __percpu annotation to pointer which points to the per-CPU area. This change affects only the sparse tool (and is ignored by the compiler). Reported-by: kbuild test robot Signed-off-by: Sebastian Andrzej Siewior Cc: Linus Torvalds Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Thomas Gleixner Fixes: f97f8f06a49fe ("smpboot: Provide infrastructure for percpu hotplug threads") Link: http://lkml.kernel.org/r/20190424085253.12178-1-bigeasy@linutronix.de Signed-off-by: Ingo Molnar --- include/linux/smpboot.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/smpboot.h b/include/linux/smpboot.h index d0884b525001..9d1bc65d226c 100644 --- a/include/linux/smpboot.h +++ b/include/linux/smpboot.h @@ -29,7 +29,7 @@ struct smpboot_thread_data; * @thread_comm: The base name of the thread */ struct smp_hotplug_thread { - struct task_struct __percpu **store; + struct task_struct * __percpu *store; struct list_head list; int (*thread_should_run)(unsigned int cpu); void (*thread_fn)(unsigned int cpu); -- cgit v1.2.3 From d43c17ead879ba7c076dc2f5fd80cd76047c9ff4 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Wed, 3 Apr 2019 16:20:20 +0200 Subject: HID: input: make sure the wheel high resolution multiplier is set Some old mice have a tendency to not accept the high resolution multiplier. They reply with a -EPIPE which was previously ignored. Force the call to resolution multiplier to be synchronous and actually check for the answer. If this fails, consider the mouse like a normal one. Fixes: 2dc702c991e377 ("HID: input: use the Resolution Multiplier for high-resolution scrolling") Link: https://bugzilla.redhat.com/show_bug.cgi?id=1700071 Reported-and-tested-by: James Feeney Cc: stable@vger.kernel.org # v5.0+ Signed-off-by: Benjamin Tissoires --- include/linux/hid.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/hid.h b/include/linux/hid.h index f9707d1dcb58..2c69340d372d 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -893,7 +893,7 @@ struct hid_field *hidinput_get_led_field(struct hid_device *hid); unsigned int hidinput_count_leds(struct hid_device *hid); __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code); void hid_output_report(struct hid_report *report, __u8 *data); -void __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype); +int __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype); u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags); struct hid_device *hid_allocate_device(void); struct hid_report *hid_register_report(struct hid_device *device, -- cgit v1.2.3 From 83dd59a0b9afc3b1a2642fb5c9b0585b1c08768f Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 9 Apr 2019 11:46:14 -0400 Subject: SUNRPC/nfs: Fix return value for nfs4_callback_compound() RPC server procedures are normally expected to return a __be32 encoded status value of type 'enum rpc_accept_stat', however at least one function wants to return an authentication status of type 'enum rpc_auth_stat' in the case where authentication fails. This patch adds functionality to allow this. Fixes: a4e187d83d88 ("NFS: Don't drop CB requests with invalid principals") Signed-off-by: Trond Myklebust Signed-off-by: J. Bruce Fields --- include/linux/sunrpc/svc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index e52385340b3b..7ff12c9dbeaf 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -271,6 +271,7 @@ struct svc_rqst { #define RQ_VICTIM (5) /* about to be shut down */ #define RQ_BUSY (6) /* request is busy */ #define RQ_DATA (7) /* request has data */ +#define RQ_AUTHERR (8) /* Request status is auth error */ unsigned long rq_flags; /* flags field */ ktime_t rq_qtime; /* enqueue time */ @@ -504,6 +505,7 @@ unsigned int svc_fill_write_vector(struct svc_rqst *rqstp, char *svc_fill_symlink_pathname(struct svc_rqst *rqstp, struct kvec *first, void *p, size_t total); +__be32 svc_return_autherr(struct svc_rqst *rqstp, __be32 auth_err); #define RPC_MAX_ADDRBUFLEN (63U) -- cgit v1.2.3 From 8e5b67731d088e66fc6a59d9e2fc9a5e4e187303 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 9 Apr 2019 11:46:15 -0400 Subject: SUNRPC: Add a callback to initialise server requests Add a callback to help initialise server requests before they are processed. This will allow us to clean up the NFS server version support, and to make it container safe. Signed-off-by: Trond Myklebust Signed-off-by: J. Bruce Fields --- include/linux/sunrpc/svc.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 7ff12c9dbeaf..f43d5765acff 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -383,6 +383,16 @@ struct svc_deferred_req { __be32 args[0]; }; +struct svc_process_info { + union { + int (*dispatch)(struct svc_rqst *, __be32 *); + struct { + unsigned int lovers; + unsigned int hivers; + } mismatch; + }; +}; + /* * List of RPC programs on the same transport endpoint */ @@ -397,6 +407,9 @@ struct svc_program { char * pg_class; /* class name: services sharing authentication */ struct svc_stat * pg_stats; /* rpc statistics */ int (*pg_authenticate)(struct svc_rqst *); + __be32 (*pg_init_request)(struct svc_rqst *, + const struct svc_program *, + struct svc_process_info *); }; /* @@ -506,6 +519,9 @@ char *svc_fill_symlink_pathname(struct svc_rqst *rqstp, struct kvec *first, void *p, size_t total); __be32 svc_return_autherr(struct svc_rqst *rqstp, __be32 auth_err); +__be32 svc_generic_init_request(struct svc_rqst *rqstp, + const struct svc_program *progp, + struct svc_process_info *procinfo); #define RPC_MAX_ADDRBUFLEN (63U) -- cgit v1.2.3 From 642ee6b209c2f4c20fe0a7ed36b429c470162eae Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 9 Apr 2019 11:46:17 -0400 Subject: SUNRPC: Allow further customisation of RPC program registration Add a callback to allow customisation of the rpcbind registration. When clients have the ability to turn on and off version support, we want to allow them to also prevent registration of those versions with the rpc portmapper. Signed-off-by: Trond Myklebust Signed-off-by: J. Bruce Fields --- include/linux/sunrpc/svc.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index f43d5765acff..1afe38eb33f7 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -410,6 +410,11 @@ struct svc_program { __be32 (*pg_init_request)(struct svc_rqst *, const struct svc_program *, struct svc_process_info *); + int (*pg_rpcbind_set)(struct net *net, + const struct svc_program *, + u32 version, int family, + unsigned short proto, + unsigned short port); }; /* @@ -522,6 +527,16 @@ __be32 svc_return_autherr(struct svc_rqst *rqstp, __be32 auth_err); __be32 svc_generic_init_request(struct svc_rqst *rqstp, const struct svc_program *progp, struct svc_process_info *procinfo); +int svc_generic_rpcbind_set(struct net *net, + const struct svc_program *progp, + u32 version, int family, + unsigned short proto, + unsigned short port); +int svc_rpcbind_set_version(struct net *net, + const struct svc_program *progp, + u32 version, int family, + unsigned short proto, + unsigned short port); #define RPC_MAX_ADDRBUFLEN (63U) -- cgit v1.2.3 From 4df493a260d4c1844437b28009013d5dc408d0df Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 9 Apr 2019 12:13:37 -0400 Subject: SUNRPC: Cache the process user cred in the RPC server listener In order to be able to interpret uids and gids correctly in knfsd, we should cache the user namespace of the process that created the RPC server's listener. To do so, we refcount the credential of that process. Signed-off-by: Trond Myklebust Signed-off-by: J. Bruce Fields --- include/linux/sunrpc/svc_xprt.h | 4 +++- include/linux/sunrpc/svcsock.h | 3 ++- 2 files changed, 5 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h index b3f9577e17d6..ea6f46be9cb7 100644 --- a/include/linux/sunrpc/svc_xprt.h +++ b/include/linux/sunrpc/svc_xprt.h @@ -86,6 +86,7 @@ struct svc_xprt { struct list_head xpt_users; /* callbacks on free */ struct net *xpt_net; + const struct cred *xpt_cred; struct rpc_xprt *xpt_bc_xprt; /* NFSv4.1 backchannel */ struct rpc_xprt_switch *xpt_bc_xps; /* NFSv4.1 backchannel */ }; @@ -119,7 +120,8 @@ void svc_unreg_xprt_class(struct svc_xprt_class *); void svc_xprt_init(struct net *, struct svc_xprt_class *, struct svc_xprt *, struct svc_serv *); int svc_create_xprt(struct svc_serv *, const char *, struct net *, - const int, const unsigned short, int); + const int, const unsigned short, int, + const struct cred *); void svc_xprt_do_enqueue(struct svc_xprt *xprt); void svc_xprt_enqueue(struct svc_xprt *xprt); void svc_xprt_put(struct svc_xprt *xprt); diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h index 119718a922f2..771baadaee9d 100644 --- a/include/linux/sunrpc/svcsock.h +++ b/include/linux/sunrpc/svcsock.h @@ -59,7 +59,8 @@ void svc_drop(struct svc_rqst *); void svc_sock_update_bufs(struct svc_serv *serv); bool svc_alien_sock(struct net *net, int fd); int svc_addsock(struct svc_serv *serv, const int fd, - char *name_return, const size_t len); + char *name_return, const size_t len, + const struct cred *cred); void svc_init_xprt_sock(void); void svc_cleanup_xprt_sock(void); struct svc_xprt *svc_sock_create(struct svc_serv *serv, int prot); -- cgit v1.2.3 From 40373b125de6bab186e71d5ea5498bb2b845398b Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 9 Apr 2019 12:13:39 -0400 Subject: lockd: Pass the user cred from knfsd when starting the lockd server When starting up a new knfsd server, pass the user cred to the supporting lockd server. Signed-off-by: Trond Myklebust Signed-off-by: J. Bruce Fields --- include/linux/lockd/bind.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h index 053a4ef3d431..0520c0cd73f4 100644 --- a/include/linux/lockd/bind.h +++ b/include/linux/lockd/bind.h @@ -46,6 +46,7 @@ struct nlmclnt_initdata { int noresvport; struct net *net; const struct nlmclnt_operations *nlmclnt_ops; + const struct cred *cred; }; /* @@ -75,7 +76,7 @@ struct nlmclnt_operations { }; extern int nlmclnt_proc(struct nlm_host *host, int cmd, struct file_lock *fl, void *data); -extern int lockd_up(struct net *net); +extern int lockd_up(struct net *net, const struct cred *cred); extern void lockd_down(struct net *net); #endif /* LINUX_LOCKD_BIND_H */ -- cgit v1.2.3 From ddcdc368b1033e19fd3a5f750752e10e28a87826 Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Tue, 16 Apr 2019 14:07:29 +0300 Subject: RDMA/mlx5: Use get_zeroed_page() for clock_info get_zeroed_page() returns a virtual address for the page which is better than allocating a struct page and doing a permanent kmap on it. Cc: stable@vger.kernel.org Signed-off-by: Jason Gunthorpe Reviewed-by: Haggai Eran Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- include/linux/mlx5/driver.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 0d0729648844..9ffc53acaec1 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -681,7 +681,6 @@ struct mlx5_core_dev { #endif struct mlx5_clock clock; struct mlx5_ib_clock_info *clock_info; - struct page *clock_info_page; struct mlx5_fw_tracer *tracer; }; -- cgit v1.2.3 From 9fba2b9b4f1566213a4f0cec658479d8915086fa Mon Sep 17 00:00:00 2001 From: Ariel Levkovich Date: Sun, 31 Mar 2019 19:44:43 +0300 Subject: net/mlx5: Expose SW ICM related device memory capabilities Add SW ICM related fields to the device memory capabilities structure and sw ownership capability in flow table properties. The currently supported SW ICM types are steering and header modify and the changes exposes the device memory capabilities for each of these two types. SW ICM memory can be allocated by SW and then be accessed by RDMA operations for direct management of the HW packet handling tables. Signed-off-by: Ariel Levkovich Reviewed-by: Eli Cohen Reviewed-by: Mark Bloch Signed-off-by: Leon Romanovsky Signed-off-by: Saeed Mahameed --- include/linux/mlx5/mlx5_ifc.h | 45 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 43 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 11e498442134..d96eb0916a44 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -80,6 +80,14 @@ enum { MLX5_SHARED_RESOURCE_UID = 0xffff, }; +enum { + MLX5_OBJ_TYPE_SW_ICM = 0x0008, +}; + +enum { + MLX5_GENERAL_OBJ_TYPES_CAP_SW_ICM = (1ULL << MLX5_OBJ_TYPE_SW_ICM), +}; + enum { MLX5_CMD_OP_QUERY_HCA_CAP = 0x100, MLX5_CMD_OP_QUERY_ADAPTER = 0x101, @@ -357,7 +365,8 @@ struct mlx5_ifc_flow_table_prop_layout_bits { u8 pop_vlan_2[0x1]; u8 push_vlan_2[0x1]; u8 reformat_and_vlan_action[0x1]; - u8 reserved_at_10[0x2]; + u8 reserved_at_10[0x1]; + u8 sw_owner[0x1]; u8 reformat_l3_tunnel_to_l2[0x1]; u8 reformat_l2_to_l3_tunnel[0x1]; u8 reformat_and_modify_action[0x1]; @@ -770,7 +779,19 @@ struct mlx5_ifc_device_mem_cap_bits { u8 max_memic_size[0x20]; - u8 reserved_at_c0[0x740]; + u8 steering_sw_icm_start_address[0x40]; + + u8 reserved_at_100[0x8]; + u8 log_header_modify_sw_icm_size[0x8]; + u8 reserved_at_110[0x2]; + u8 log_sw_icm_alloc_granularity[0x6]; + u8 log_steering_sw_icm_size[0x8]; + + u8 reserved_at_120[0x20]; + + u8 header_modify_sw_icm_start_address[0x40]; + + u8 reserved_at_180[0x680]; }; enum { @@ -919,6 +940,7 @@ enum { enum { MLX5_UCTX_CAP_RAW_TX = 1UL << 0, + MLX5_UCTX_CAP_INTERNAL_DEV_RES = 1UL << 1, }; struct mlx5_ifc_cmd_hca_cap_bits { @@ -2920,6 +2942,7 @@ enum { MLX5_MKC_ACCESS_MODE_MTT = 0x1, MLX5_MKC_ACCESS_MODE_KLMS = 0x2, MLX5_MKC_ACCESS_MODE_KSM = 0x3, + MLX5_MKC_ACCESS_MODE_SW_ICM = 0x4, MLX5_MKC_ACCESS_MODE_MEMIC = 0x5, }; @@ -9491,6 +9514,19 @@ struct mlx5_ifc_uctx_bits { u8 reserved_at_20[0x160]; }; +struct mlx5_ifc_sw_icm_bits { + u8 modify_field_select[0x40]; + + u8 reserved_at_40[0x18]; + u8 log_sw_icm_size[0x8]; + + u8 reserved_at_60[0x20]; + + u8 sw_icm_start_addr[0x40]; + + u8 reserved_at_c0[0x140]; +}; + struct mlx5_ifc_create_umem_in_bits { u8 opcode[0x10]; u8 uid[0x10]; @@ -9528,6 +9564,11 @@ struct mlx5_ifc_destroy_uctx_in_bits { u8 reserved_at_60[0x20]; }; +struct mlx5_ifc_create_sw_icm_in_bits { + struct mlx5_ifc_general_obj_in_cmd_hdr_bits hdr; + struct mlx5_ifc_sw_icm_bits sw_icm; +}; + struct mlx5_ifc_mtrc_string_db_param_bits { u8 string_db_base_address[0x20]; -- cgit v1.2.3 From 3e07047021d36674d9051e76454e8b6a3b599036 Mon Sep 17 00:00:00 2001 From: Ariel Levkovich Date: Sun, 31 Mar 2019 19:44:48 +0300 Subject: net/mlx5: Expose TIR ICM address in command outbox Adding the TIR ICM address to the create_tir command outbox through which the device reports the ICM address of the newly created TIR. The TIR address can be used for direct attachment to a steering rule in SW managed steering mode. Signed-off-by: Ariel Levkovich Reviewed-by: Eli Cohen Reviewed-by: Mark Bloch Signed-off-by: Leon Romanovsky Signed-off-by: Saeed Mahameed --- include/linux/mlx5/mlx5_ifc.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index d96eb0916a44..4b37519bd6a5 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -6897,14 +6897,14 @@ struct mlx5_ifc_create_tis_in_bits { struct mlx5_ifc_create_tir_out_bits { u8 status[0x8]; - u8 reserved_at_8[0x18]; + u8 icm_address_63_40[0x18]; u8 syndrome[0x20]; - u8 reserved_at_40[0x8]; + u8 icm_address_39_32[0x8]; u8 tirn[0x18]; - u8 reserved_at_60[0x20]; + u8 icm_address_31_0[0x20]; }; struct mlx5_ifc_create_tir_in_bits { -- cgit v1.2.3 From 96780e4f46b2fc0fc5ae2b95957002e2c42b11d3 Mon Sep 17 00:00:00 2001 From: Ariel Levkovich Date: Sun, 31 Mar 2019 19:44:49 +0300 Subject: net/mlx5: Introduce new TIR creation core API Introducing new TIR creation core API which allows caller to receive back from the call the full command outbox. This comes as a preparation for the next patch that will retrieve the TIR ICM address from the command outbox. Signed-off-by: Ariel Levkovich Reviewed-by: Eli Cohen Reviewed-by: Mark Bloch Signed-off-by: Leon Romanovsky Signed-off-by: Saeed Mahameed --- include/linux/mlx5/transobj.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/transobj.h b/include/linux/mlx5/transobj.h index a261d5528ff7..dc6b1e7cb8c4 100644 --- a/include/linux/mlx5/transobj.h +++ b/include/linux/mlx5/transobj.h @@ -50,6 +50,9 @@ int mlx5_core_query_sq(struct mlx5_core_dev *dev, u32 sqn, u32 *out); int mlx5_core_query_sq_state(struct mlx5_core_dev *dev, u32 sqn, u8 *state); int mlx5_core_create_tir(struct mlx5_core_dev *dev, u32 *in, int inlen, u32 *tirn); +int mlx5_core_create_tir_out(struct mlx5_core_dev *dev, + u32 *in, int inlen, + u32 *out, int outlen); int mlx5_core_modify_tir(struct mlx5_core_dev *dev, u32 tirn, u32 *in, int inlen); void mlx5_core_destroy_tir(struct mlx5_core_dev *dev, u32 tirn); -- cgit v1.2.3 From 877b5691f27a1aec0d9b53095a323e45c30069e2 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Sun, 14 Apr 2019 17:37:09 -0700 Subject: crypto: shash - remove shash_desc::flags The flags field in 'struct shash_desc' never actually does anything. The only ostensibly supported flag is CRYPTO_TFM_REQ_MAY_SLEEP. However, no shash algorithm ever sleeps, making this flag a no-op. With this being the case, inevitably some users who can't sleep wrongly pass MAY_SLEEP. These would all need to be fixed if any shash algorithm actually started sleeping. For example, the shash_ahash_*() functions, which wrap a shash algorithm with the ahash API, pass through MAY_SLEEP from the ahash API to the shash API. However, the shash functions are called under kmap_atomic(), so actually they're assumed to never sleep. Even if it turns out that some users do need preemption points while hashing large buffers, we could easily provide a helper function crypto_shash_update_large() which divides the data into smaller chunks and calls crypto_shash_update() and cond_resched() for each chunk. It's not necessary to have a flag in 'struct shash_desc', nor is it necessary to make individual shash algorithms aware of this at all. Therefore, remove shash_desc::flags, and document that the crypto_shash_*() functions can be called from any context. Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu --- include/linux/jbd2.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 0f919d5fe84f..c2ffff5f9ae2 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1606,7 +1606,6 @@ static inline u32 jbd2_chksum(journal_t *journal, u32 crc, JBD_MAX_CHECKSUM_SIZE); desc.shash.tfm = journal->j_chksum_driver; - desc.shash.flags = 0; *(u32 *)desc.ctx = crc; err = crypto_shash_update(&desc.shash, address, length); -- cgit v1.2.3 From cf28369c634fafb5f4e81750cba6988cdb4b4490 Mon Sep 17 00:00:00 2001 From: Ajay Gupta Date: Tue, 23 Apr 2019 17:21:51 +0300 Subject: usb: typec: Add driver for NVIDIA Alt Modes Latest NVIDIA GPUs support VirtualLink device. Since USBIF has not assigned a Standard ID (SID) for VirtualLink so using NVIDA VID 0x955 as SVID. Signed-off-by: Ajay Gupta Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/typec_dp.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/usb/typec_dp.h b/include/linux/usb/typec_dp.h index 7fa12ef8d09a..fc4c7edb2e8a 100644 --- a/include/linux/usb/typec_dp.h +++ b/include/linux/usb/typec_dp.h @@ -5,6 +5,11 @@ #include #define USB_TYPEC_DP_SID 0xff01 +/* USB IF has not assigned a Standard ID (SID) for VirtualLink, + * so the manufacturers of VirtualLink adapters use their Vendor + * IDs as the SVID. + */ +#define USB_TYPEC_NVIDIA_VLINK_SID 0x955 /* NVIDIA VirtualLink */ #define USB_TYPEC_DP_MODE 1 /* -- cgit v1.2.3 From a4d6a2989dc3f2f2bcd25ca53dd187a1de68ffac Mon Sep 17 00:00:00 2001 From: Raul E Rangel Date: Fri, 19 Apr 2019 09:30:22 -0600 Subject: usb/hcd: Send a uevent signaling that the host controller had died This change will send an OFFLINE event to udev with the ERROR=DEAD environment variable set when the HC dies. By notifying user space the appropriate policies can be applied. i.e., * Collect error logs. * Notify the user that USB is no longer functional. * Perform a graceful reboot. Reported-by: kbuild test robot Signed-off-by: Raul E Rangel Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/hcd.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 695931b03684..66a24b13e2ab 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -98,6 +98,7 @@ struct usb_hcd { #ifdef CONFIG_PM struct work_struct wakeup_work; /* for remote wakeup */ #endif + struct work_struct died_work; /* for when the device dies */ /* * hardware info/state -- cgit v1.2.3 From f137401780278c5a257945330936607701fbd2fd Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 22 Apr 2019 10:27:22 -0300 Subject: docs: serial: convert docs to ReST and rename to *.rst The converted files are focused at the Kernel internal API, so, this is a good candidate for the kernel API set of books. The conversion is actually: - add blank lines and identation in order to identify paragraphs; - fix tables markups; - add some lists markups; - mark literal blocks; - adjust title markups. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman --- include/linux/serial_core.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 5fe2b037e833..fea2216a893f 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -45,7 +45,7 @@ struct device; /* * This structure describes all the operations that can be done on the - * physical hardware. See Documentation/serial/driver for details. + * physical hardware. See Documentation/serial/driver.rst for details. */ struct uart_ops { unsigned int (*tx_empty)(struct uart_port *); -- cgit v1.2.3 From d46966013bb4f1fbed7cf995828523a3d1f265c6 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 25 Apr 2019 14:26:50 +0100 Subject: afs: Add file locking tracepoints Add two tracepoints for monitoring AFS file locking. Firstly, add one that follows the operational part: echo 1 >/sys/kernel/debug/tracing/events/afs/afs_flock_op/enable And add a second that more follows the event-driven part: echo 1 >/sys/kernel/debug/tracing/events/afs/afs_flock_ev/enable Individual file_lock structs seen by afs are tagged with debugging IDs that are displayed in the trace log to make it easier to see what's going on, especially as setting the first lock always seems to involve copying the file_lock twice. Signed-off-by: David Howells --- include/linux/fs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/fs.h b/include/linux/fs.h index dd28e7679089..744908e0bdec 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1093,6 +1093,7 @@ struct file_lock { struct { struct list_head link; /* link in AFS vnode's pending_locks list */ int state; /* state of grant or error if -ve */ + unsigned int debug_id; } afs; } fl_u; } __randomize_layout; -- cgit v1.2.3 From 82bebbde02e24ad7b641eca25e632f32579ed52f Mon Sep 17 00:00:00 2001 From: Minwoo Im Date: Wed, 10 Apr 2019 23:48:59 +0900 Subject: nvme-rdma: fix typo in struct comment struct nvme_rdma_cm_rej has two different attributes: recfmt and sts. And sts will have value what this comment wanted to show. Signed-off-by: Minwoo Im Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig --- include/linux/nvme-rdma.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/nvme-rdma.h b/include/linux/nvme-rdma.h index 3aa97b98dc89..3ec8e50efa16 100644 --- a/include/linux/nvme-rdma.h +++ b/include/linux/nvme-rdma.h @@ -77,7 +77,7 @@ struct nvme_rdma_cm_rep { * struct nvme_rdma_cm_rej - rdma connect reject * * @recfmt: format of the RDMA Private Data - * @fsts: error status for the associated connect request + * @sts: error status for the associated connect request */ struct nvme_rdma_cm_rej { __le16 recfmt; -- cgit v1.2.3 From 0a9b2d1ce42210d087d32b1979d3ada343537708 Mon Sep 17 00:00:00 2001 From: Fabrice Gasnier Date: Sat, 13 Apr 2019 11:32:57 +0100 Subject: nvmem: core: add nvmem_cell_read_u16 Add nvmem_cell_read_u16() helper to ease read of an u16 value on consumer side. This is inspired by nvmem_cell_read_u32() function. This helper is useful on stm32 that has 16 bits data cells stored in non volatile memory. Signed-off-by: Fabrice Gasnier Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman --- include/linux/nvmem-consumer.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h index 312bfa5efd80..8f8be5b00060 100644 --- a/include/linux/nvmem-consumer.h +++ b/include/linux/nvmem-consumer.h @@ -61,6 +61,7 @@ void nvmem_cell_put(struct nvmem_cell *cell); void devm_nvmem_cell_put(struct device *dev, struct nvmem_cell *cell); void *nvmem_cell_read(struct nvmem_cell *cell, size_t *len); int nvmem_cell_write(struct nvmem_cell *cell, void *buf, size_t len); +int nvmem_cell_read_u16(struct device *dev, const char *cell_id, u16 *val); int nvmem_cell_read_u32(struct device *dev, const char *cell_id, u32 *val); /* direct nvmem device read/write interface */ @@ -122,6 +123,12 @@ static inline int nvmem_cell_write(struct nvmem_cell *cell, return -EOPNOTSUPP; } +static inline int nvmem_cell_read_u16(struct device *dev, + const char *cell_id, u16 *val) +{ + return -EOPNOTSUPP; +} + static inline int nvmem_cell_read_u32(struct device *dev, const char *cell_id, u32 *val) { -- cgit v1.2.3 From b88b5b7182b07ebdc1ab692b4fc6a10abfff208d Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Thu, 4 Apr 2019 11:11:02 +0300 Subject: clk: ti: export the omap2_clk_is_hw_omap call There is one instance outside the TI clock driver that needs the info whether a clock is an OMAP HW clock or not. Thus, move the function declaration into the public header. Signed-off-by: Tero Kristo Signed-off-by: Stephen Boyd --- include/linux/clk/ti.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h index 78872efc7be0..2821f7cb1ca9 100644 --- a/include/linux/clk/ti.h +++ b/include/linux/clk/ti.h @@ -243,6 +243,7 @@ struct ti_clk_ll_ops { #define to_clk_hw_omap(_hw) container_of(_hw, struct clk_hw_omap, hw) +bool omap2_clk_is_hw_omap(struct clk_hw *hw); int omap2_clk_disable_autoidle_all(void); int omap2_clk_enable_autoidle_all(void); int omap2_clk_allow_idle(struct clk *clk); -- cgit v1.2.3 From 9d53690f0d4e5686e80f034ea584b7a822b356d3 Mon Sep 17 00:00:00 2001 From: Gabriel Krisman Bertazi Date: Thu, 25 Apr 2019 13:51:22 -0400 Subject: unicode: implement higher level API for string handling This patch integrates the utf8n patches with some higher level API to perform UTF-8 string comparison, normalization and casefolding operations. Implemented is a variation of NFD, and casefold is performed by doing full casefold on top of NFD. These algorithms are based on the core implemented by Olaf Weber from SGI. Signed-off-by: Gabriel Krisman Bertazi Signed-off-by: Theodore Ts'o --- include/linux/unicode.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 include/linux/unicode.h (limited to 'include/linux') diff --git a/include/linux/unicode.h b/include/linux/unicode.h new file mode 100644 index 000000000000..aec2c6d800aa --- /dev/null +++ b/include/linux/unicode.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_UNICODE_H +#define _LINUX_UNICODE_H + +#include +#include + +struct unicode_map { + const char *charset; + int version; +}; + +int utf8_validate(const struct unicode_map *um, const struct qstr *str); + +int utf8_strncmp(const struct unicode_map *um, + const struct qstr *s1, const struct qstr *s2); + +int utf8_strncasecmp(const struct unicode_map *um, + const struct qstr *s1, const struct qstr *s2); + +int utf8_normalize(const struct unicode_map *um, const struct qstr *str, + unsigned char *dest, size_t dlen); + +int utf8_casefold(const struct unicode_map *um, const struct qstr *str, + unsigned char *dest, size_t dlen); + +struct unicode_map *utf8_load(const char *version); +void utf8_unload(struct unicode_map *um); + +#endif /* _LINUX_UNICODE_H */ -- cgit v1.2.3 From 869decd1ff197c3083cb8b58f7dcac201038c381 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Thu, 4 Apr 2019 11:11:05 +0300 Subject: clk: ti: dra7: disable the RNG and TIMER12 clkctrl clocks on HS devices RNG and TIMER12 are reserved for secure side usage only on HS devices, so disable their clkctrl clocks on HS SoCs also. Signed-off-by: Tero Kristo Tested-by: Andrew F. Davis Signed-off-by: Stephen Boyd --- include/linux/clk/ti.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h index 2821f7cb1ca9..1e8ef96555ce 100644 --- a/include/linux/clk/ti.h +++ b/include/linux/clk/ti.h @@ -294,6 +294,7 @@ struct ti_clk_features { #define TI_CLK_DISABLE_CLKDM_CONTROL BIT(2) #define TI_CLK_ERRATA_I810 BIT(3) #define TI_CLK_CLKCTRL_COMPAT BIT(4) +#define TI_CLK_DEVICE_TYPE_GP BIT(5) void ti_clk_setup_features(struct ti_clk_features *features); const struct ti_clk_features *ti_clk_get_features(void); -- cgit v1.2.3 From b886ee3e778ec2ad43e276fd378ab492cf6819b7 Mon Sep 17 00:00:00 2001 From: Gabriel Krisman Bertazi Date: Thu, 25 Apr 2019 14:12:08 -0400 Subject: ext4: Support case-insensitive file name lookups This patch implements the actual support for case-insensitive file name lookups in ext4, based on the feature bit and the encoding stored in the superblock. A filesystem that has the casefold feature set is able to configure directories with the +F (EXT4_CASEFOLD_FL) attribute, enabling lookups to succeed in that directory in a case-insensitive fashion, i.e: match a directory entry even if the name used by userspace is not a byte per byte match with the disk name, but is an equivalent case-insensitive version of the Unicode string. This operation is called a case-insensitive file name lookup. The feature is configured as an inode attribute applied to directories and inherited by its children. This attribute can only be enabled on empty directories for filesystems that support the encoding feature, thus preventing collision of file names that only differ by case. * dcache handling: For a +F directory, Ext4 only stores the first equivalent name dentry used in the dcache. This is done to prevent unintentional duplication of dentries in the dcache, while also allowing the VFS code to quickly find the right entry in the cache despite which equivalent string was used in a previous lookup, without having to resort to ->lookup(). d_hash() of casefolded directories is implemented as the hash of the casefolded string, such that we always have a well-known bucket for all the equivalencies of the same string. d_compare() uses the utf8_strncasecmp() infrastructure, which handles the comparison of equivalent, same case, names as well. For now, negative lookups are not inserted in the dcache, since they would need to be invalidated anyway, because we can't trust missing file dentries. This is bad for performance but requires some leveraging of the vfs layer to fix. We can live without that for now, and so does everyone else. * on-disk data: Despite using a specific version of the name as the internal representation within the dcache, the name stored and fetched from the disk is a byte-per-byte match with what the user requested, making this implementation 'name-preserving'. i.e. no actual information is lost when writing to storage. DX is supported by modifying the hashes used in +F directories to make them case/encoding-aware. The new disk hashes are calculated as the hash of the full casefolded string, instead of the string directly. This allows us to efficiently search for file names in the htree without requiring the user to provide an exact name. * Dealing with invalid sequences: By default, when a invalid UTF-8 sequence is identified, ext4 will treat it as an opaque byte sequence, ignoring the encoding and reverting to the old behavior for that unique file. This means that case-insensitive file name lookup will not work only for that file. An optional bit can be set in the superblock telling the filesystem code and userspace tools to enforce the encoding. When that optional bit is set, any attempt to create a file name using an invalid UTF-8 sequence will fail and return an error to userspace. * Normalization algorithm: The UTF-8 algorithms used to compare strings in ext4 is implemented lives in fs/unicode, and is based on a previous version developed by SGI. It implements the Canonical decomposition (NFD) algorithm described by the Unicode specification 12.1, or higher, combined with the elimination of ignorable code points (NFDi) and full case-folding (CF) as documented in fs/unicode/utf8_norm.c. NFD seems to be the best normalization method for EXT4 because: - It has a lower cost than NFC/NFKC (which requires decomposing to NFD as an intermediary step) - It doesn't eliminate important semantic meaning like compatibility decompositions. Although: - This implementation is not completely linguistic accurate, because different languages have conflicting rules, which would require the specialization of the filesystem to a given locale, which brings all sorts of problems for removable media and for users who use more than one language. Signed-off-by: Gabriel Krisman Bertazi Signed-off-by: Theodore Ts'o --- include/linux/fs.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/fs.h b/include/linux/fs.h index 8b42df09b04c..6261090e605b 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1953,6 +1953,7 @@ struct super_operations { #define S_DAX 0 /* Make all the DAX code disappear */ #endif #define S_ENCRYPTED 16384 /* Encrypted file (using fs/crypto/) */ +#define S_CASEFOLD 32768 /* Casefolded file */ /* * Note that nosuid etc flags are inode-specific: setting some file-system @@ -1993,6 +1994,7 @@ static inline bool sb_rdonly(const struct super_block *sb) { return sb->s_flags #define IS_NOSEC(inode) ((inode)->i_flags & S_NOSEC) #define IS_DAX(inode) ((inode)->i_flags & S_DAX) #define IS_ENCRYPTED(inode) ((inode)->i_flags & S_ENCRYPTED) +#define IS_CASEFOLDED(inode) ((inode)->i_flags & S_CASEFOLD) #define IS_WHITEOUT(inode) (S_ISCHR(inode->i_mode) && \ (inode)->i_rdev == WHITEOUT_DEV) -- cgit v1.2.3 From ae67bd3821bb0a54d97e7883d211196637d487a9 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:58:44 -0400 Subject: SUNRPC: Fix up task signalling The RPC_TASK_KILLED flag should really not be set from another context because it can clobber data in the struct task when task->tk_flags is changed non-atomically. Let's therefore swap out RPC_TASK_KILLED with an atomic flag, and add a function to set that flag and safely wake up the task. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/sunrpc/sched.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index 52d41d0c1ae1..90e06c67f455 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -125,7 +125,6 @@ struct rpc_task_setup { #define RPC_CALL_MAJORSEEN 0x0020 /* major timeout seen */ #define RPC_TASK_ROOTCREDS 0x0040 /* force root creds */ #define RPC_TASK_DYNAMIC 0x0080 /* task was kmalloc'ed */ -#define RPC_TASK_KILLED 0x0100 /* task was killed */ #define RPC_TASK_SOFT 0x0200 /* Use soft timeouts */ #define RPC_TASK_SOFTCONN 0x0400 /* Fail if can't connect */ #define RPC_TASK_SENT 0x0800 /* message was sent */ @@ -135,7 +134,6 @@ struct rpc_task_setup { #define RPC_IS_ASYNC(t) ((t)->tk_flags & RPC_TASK_ASYNC) #define RPC_IS_SWAPPER(t) ((t)->tk_flags & RPC_TASK_SWAPPER) -#define RPC_ASSASSINATED(t) ((t)->tk_flags & RPC_TASK_KILLED) #define RPC_IS_SOFT(t) ((t)->tk_flags & (RPC_TASK_SOFT|RPC_TASK_TIMEOUT)) #define RPC_IS_SOFTCONN(t) ((t)->tk_flags & RPC_TASK_SOFTCONN) #define RPC_WAS_SENT(t) ((t)->tk_flags & RPC_TASK_SENT) @@ -146,6 +144,7 @@ struct rpc_task_setup { #define RPC_TASK_NEED_XMIT 3 #define RPC_TASK_NEED_RECV 4 #define RPC_TASK_MSG_PIN_WAIT 5 +#define RPC_TASK_SIGNALLED 6 #define RPC_IS_RUNNING(t) test_bit(RPC_TASK_RUNNING, &(t)->tk_runstate) #define rpc_set_running(t) set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate) @@ -169,6 +168,8 @@ struct rpc_task_setup { #define RPC_IS_ACTIVATED(t) test_bit(RPC_TASK_ACTIVE, &(t)->tk_runstate) +#define RPC_SIGNALLED(t) test_bit(RPC_TASK_SIGNALLED, &(t)->tk_runstate) + /* * Task priorities. * Note: if you change these, you must also change @@ -217,6 +218,7 @@ struct rpc_task *rpc_run_task(const struct rpc_task_setup *); struct rpc_task *rpc_run_bc_task(struct rpc_rqst *req); void rpc_put_task(struct rpc_task *); void rpc_put_task_async(struct rpc_task *); +void rpc_signal_task(struct rpc_task *); void rpc_exit_task(struct rpc_task *); void rpc_exit(struct rpc_task *, int); void rpc_release_calldata(const struct rpc_call_ops *, void *); -- cgit v1.2.3 From 8ba6a92d0182091e0c2fa15c1a5b5458bac25fc3 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:58:46 -0400 Subject: SUNRPC: Refactor xprt_request_wait_receive() Convert the transport callback to actually put the request to sleep instead of just setting a timeout. This is in preparation for rpc_sleep_on_timeout(). Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/sunrpc/xprt.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 3a391544299e..a6d9fce7f20e 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -143,7 +143,7 @@ struct rpc_xprt_ops { void (*buf_free)(struct rpc_task *task); void (*prepare_request)(struct rpc_rqst *req); int (*send_request)(struct rpc_rqst *req); - void (*set_retrans_timeout)(struct rpc_task *task); + void (*wait_for_reply_request)(struct rpc_task *task); void (*timer)(struct rpc_xprt *xprt, struct rpc_task *task); void (*release_request)(struct rpc_task *task); void (*close)(struct rpc_xprt *xprt); @@ -378,8 +378,8 @@ xprt_disable_swap(struct rpc_xprt *xprt) int xprt_register_transport(struct xprt_class *type); int xprt_unregister_transport(struct xprt_class *type); int xprt_load_transport(const char *); -void xprt_set_retrans_timeout_def(struct rpc_task *task); -void xprt_set_retrans_timeout_rtt(struct rpc_task *task); +void xprt_wait_for_reply_request_def(struct rpc_task *task); +void xprt_wait_for_reply_request_rtt(struct rpc_task *task); void xprt_wake_pending_tasks(struct rpc_xprt *xprt, int status); void xprt_wait_for_buffer_space(struct rpc_xprt *xprt); bool xprt_write_space(struct rpc_xprt *xprt); -- cgit v1.2.3 From 8357a9b60fe7500699a9dec540ca1c48df3cb455 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:58:48 -0400 Subject: SUNRPC: Remove unused argument 'action' from rpc_sleep_on_priority() None of the callers set the 'action' argument, so let's just remove it. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/sunrpc/sched.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index 90e06c67f455..5d517578a018 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -231,7 +231,6 @@ void rpc_sleep_on(struct rpc_wait_queue *, struct rpc_task *, rpc_action action); void rpc_sleep_on_priority(struct rpc_wait_queue *, struct rpc_task *, - rpc_action action, int priority); void rpc_wake_up_queued_task_on_wq(struct workqueue_struct *wq, struct rpc_wait_queue *queue, -- cgit v1.2.3 From 6b2e6856275d7b8d0acbf06d2e8da72e1a6bc857 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:58:49 -0400 Subject: SUNRPC: Add function rpc_sleep_on_timeout() Clean up the RPC task sleep interfaces by replacing the task->tk_timeout 'hidden parameter' to rpc_sleep_on() with a new function that takes an absolute timeout. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/sunrpc/sched.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index 5d517578a018..61ba533ec058 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -35,7 +35,6 @@ struct rpc_wait { struct list_head list; /* wait queue links */ struct list_head links; /* Links to related tasks */ struct list_head timer_list; /* Timer list */ - unsigned long expires; }; /* @@ -227,8 +226,16 @@ void rpc_execute(struct rpc_task *); void rpc_init_priority_wait_queue(struct rpc_wait_queue *, const char *); void rpc_init_wait_queue(struct rpc_wait_queue *, const char *); void rpc_destroy_wait_queue(struct rpc_wait_queue *); +void rpc_sleep_on_timeout(struct rpc_wait_queue *queue, + struct rpc_task *task, + rpc_action action, + unsigned long timeout); void rpc_sleep_on(struct rpc_wait_queue *, struct rpc_task *, rpc_action action); +void rpc_sleep_on_priority_timeout(struct rpc_wait_queue *queue, + struct rpc_task *task, + unsigned long timeout, + int priority); void rpc_sleep_on_priority(struct rpc_wait_queue *, struct rpc_task *, int priority); -- cgit v1.2.3 From 5efd1876e61fe61b61e2d056782027c11bcd0982 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:58:50 -0400 Subject: SUNRPC: Fix up tracking of timeouts Add a helper to ensure that debugfs and friends print out the correct current task timeout value. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/sunrpc/sched.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index 61ba533ec058..c5ad02c7a4b3 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -226,6 +226,7 @@ void rpc_execute(struct rpc_task *); void rpc_init_priority_wait_queue(struct rpc_wait_queue *, const char *); void rpc_init_wait_queue(struct rpc_wait_queue *, const char *); void rpc_destroy_wait_queue(struct rpc_wait_queue *); +unsigned long rpc_task_timeout(const struct rpc_task *task); void rpc_sleep_on_timeout(struct rpc_wait_queue *queue, struct rpc_task *task, rpc_action action, -- cgit v1.2.3 From 24a9d9a21e568f494198eea2bb864e0b6c593051 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:58:51 -0400 Subject: SUNRPC: Simplify queue timeouts using timer_reduce() Simplify the setting of queue timeouts by using the timer_reduce() function. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/sunrpc/sched.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index c5ad02c7a4b3..bf9d6ee7f00f 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -183,7 +183,6 @@ struct rpc_task_setup { struct rpc_timer { struct timer_list timer; struct list_head list; - unsigned long expires; }; /* -- cgit v1.2.3 From 5ad64b36dda962797ce3ed579a27189ec7482d0d Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:58:54 -0400 Subject: SUNRPC: Add tracking of RPC level errors Add variables to track RPC level errors so that we can distinguish between issue that arose in the RPC transport layer as opposed to those arising from the reply message. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/sunrpc/sched.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index bf9d6ee7f00f..d0e451868f02 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -61,6 +61,8 @@ struct rpc_task { struct rpc_wait tk_wait; /* RPC wait */ } u; + int tk_rpc_status; /* Result of last RPC operation */ + /* * RPC call state */ -- cgit v1.2.3 From ae6ec918474597a13a2648c54b6f12fb8cf0a55e Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:58:58 -0400 Subject: SUNRPC: Add the 'softerr' rpc_client flag Add the 'softerr' rpc client flag that sets the RPC_TASK_TIMEOUT flag on all new rpc tasks that are attached to that rpc client. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/sunrpc/clnt.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index 98bc9883b230..943762acfcd4 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -50,6 +50,7 @@ struct rpc_clnt { struct rpc_iostats * cl_metrics; /* per-client statistics */ unsigned int cl_softrtry : 1,/* soft timeouts */ + cl_softerr : 1,/* Timeouts return errors */ cl_discrtry : 1,/* disconnect before retry */ cl_noretranstimeo: 1,/* No retransmit timeouts */ cl_autobind : 1,/* use getport() */ @@ -144,6 +145,7 @@ struct rpc_add_xprt_test { #define RPC_CLNT_CREATE_INFINITE_SLOTS (1UL << 7) #define RPC_CLNT_CREATE_NO_IDLE_TIMEOUT (1UL << 8) #define RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT (1UL << 9) +#define RPC_CLNT_CREATE_SOFTERR (1UL << 10) struct rpc_clnt *rpc_create(struct rpc_create_args *args); struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *, -- cgit v1.2.3 From 7b1355b615c67e8fcbfb508e6baee83aed9dee96 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:59:00 -0400 Subject: NFS: Move internal constants out of uapi/linux/nfs_mount.h When the label says "for internal use only", then it doesn't belong in the 'uapi' subtree. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/nfs_fs_sb.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index c827d31298cc..013ac5b54a09 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -139,6 +139,15 @@ struct nfs_server { struct nfs_iostats __percpu *io_stats; /* I/O statistics */ atomic_long_t writeback; /* number of writeback pages */ int flags; /* various flags */ + +/* The following are for internal use only. Also see uapi/linux/nfs_mount.h */ +#define NFS_MOUNT_LOOKUP_CACHE_NONEG 0x10000 +#define NFS_MOUNT_LOOKUP_CACHE_NONE 0x20000 +#define NFS_MOUNT_NORESVPORT 0x40000 +#define NFS_MOUNT_LEGACY_INTERFACE 0x80000 +#define NFS_MOUNT_LOCAL_FLOCK 0x100000 +#define NFS_MOUNT_LOCAL_FCNTL 0x200000 + unsigned int caps; /* server capabilities */ unsigned int rsize; /* read size */ unsigned int rpages; /* read size (in pages) */ -- cgit v1.2.3 From 91a575e1a98451d12df713f267a9a210a9e5dcf9 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:59:01 -0400 Subject: NFS: Add a mount option "softerr" to allow clients to see ETIMEDOUT errors Add a mount option that exposes the ETIMEDOUT errors that occur during soft timeouts to the application. This allows aware applications to distinguish between server disk IO errors and client timeout errors. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/nfs_fs_sb.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 013ac5b54a09..0fbc5d3c5e53 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -147,6 +147,7 @@ struct nfs_server { #define NFS_MOUNT_LEGACY_INTERFACE 0x80000 #define NFS_MOUNT_LOCAL_FLOCK 0x100000 #define NFS_MOUNT_LOCAL_FCNTL 0x200000 +#define NFS_MOUNT_SOFTERR 0x400000 unsigned int caps; /* server capabilities */ unsigned int rsize; /* read size */ -- cgit v1.2.3 From 6fbda89b257f25694bf4892ddbbaa472f581533b Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:59:05 -0400 Subject: NFS: Replace custom error reporting mechanism with generic one Replace the NFS custom error reporting mechanism with the generic mapping_set_error(). Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/nfs_fs.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 40e30376130b..d363d5765cdf 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -76,7 +76,6 @@ struct nfs_open_context { fmode_t mode; unsigned long flags; -#define NFS_CONTEXT_ERROR_WRITE (0) #define NFS_CONTEXT_RESEND_WRITES (1) #define NFS_CONTEXT_BAD (2) #define NFS_CONTEXT_UNLOCK (3) -- cgit v1.2.3 From 28b1d3f5a772b705ca76df620eb9f686aa2d0b4c Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:59:07 -0400 Subject: NFS: Remove unused argument from nfs_create_request() All the callers of nfs_create_request() are now creating page group heads, so we can remove the redundant 'last' page argument. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/nfs_page.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index ad69430fd0eb..b7d0f15615c2 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -114,7 +114,6 @@ struct nfs_pageio_descriptor { extern struct nfs_page *nfs_create_request(struct nfs_open_context *ctx, struct page *page, - struct nfs_page *last, unsigned int offset, unsigned int count); extern void nfs_release_request(struct nfs_page *); -- cgit v1.2.3 From 33344e0f7eaa2efbf9fcc55557d02e8603aa7012 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:59:08 -0400 Subject: pNFS: Add tracking to limit the number of pNFS retries When the client is reading or writing using pNFS, and hits an error on the DS, then it typically sends a LAYOUTERROR and/or LAYOUTRETURN to the MDS, before redirtying the failed pages, and going for a new round of reads/writebacks. The problem is that if the server has no way to fix the DS, then we may need a way to interrupt this loop after a set number of attempts have been made. This patch adds an optional module parameter that allows the admin to specify how many times to retry the read/writeback process before failing with a fatal error. The default behaviour is to retry forever. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/nfs_page.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index b7d0f15615c2..8b36800d342d 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -53,6 +53,7 @@ struct nfs_page { struct nfs_write_verifier wb_verf; /* Commit cookie */ struct nfs_page *wb_this_page; /* list of reqs for this page */ struct nfs_page *wb_head; /* head pointer for req list */ + unsigned short wb_nio; /* Number of I/O attempts */ }; struct nfs_pageio_descriptor; @@ -87,7 +88,6 @@ struct nfs_pgio_mirror { }; struct nfs_pageio_descriptor { - unsigned char pg_moreio : 1; struct inode *pg_inode; const struct nfs_pageio_ops *pg_ops; const struct nfs_rw_ops *pg_rw_ops; @@ -105,6 +105,8 @@ struct nfs_pageio_descriptor { struct nfs_pgio_mirror pg_mirrors_static[1]; struct nfs_pgio_mirror *pg_mirrors_dynamic; u32 pg_mirror_idx; /* current mirror */ + unsigned short pg_maxretrans; + unsigned char pg_moreio : 1; }; /* arbitrarily selected limit to number of mirrors */ -- cgit v1.2.3 From 9fcd5960e88bbdc74a70d9e3a5ab46b489fc4b80 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:59:11 -0400 Subject: NFS: Add a helper to return a pointer to the open context of a struct nfs_page Add a helper for when we remove the explicit pointer to the open context. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/nfs_page.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index 8b36800d342d..1ea13e94feb7 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -200,4 +200,10 @@ loff_t req_offset(struct nfs_page *req) return (((loff_t)req->wb_index) << PAGE_SHIFT) + req->wb_offset; } +static inline struct nfs_open_context * +nfs_req_openctx(struct nfs_page *req) +{ + return req->wb_context; +} + #endif /* _LINUX_NFS_PAGE_H */ -- cgit v1.2.3 From c79d183ebb76311ed434bd558279769551d02d5a Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:59:12 -0400 Subject: NFS: Remove redundant open context from nfs_page The lock context already references and tracks the open context, so take the opportunity to save some space in struct nfs_page. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/nfs_page.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index 1ea13e94feb7..0bbd587fac6a 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -42,7 +42,6 @@ struct nfs_inode; struct nfs_page { struct list_head wb_list; /* Defines state of page: */ struct page *wb_page; /* page to read in/write out */ - struct nfs_open_context *wb_context; /* File state context info */ struct nfs_lock_context *wb_lock_context; /* lock context info */ pgoff_t wb_index; /* Offset >> PAGE_SHIFT */ unsigned int wb_offset, /* Offset & ~PAGE_MASK */ @@ -203,7 +202,7 @@ loff_t req_offset(struct nfs_page *req) static inline struct nfs_open_context * nfs_req_openctx(struct nfs_page *req) { - return req->wb_context; + return req->wb_lock_context->open_context; } #endif /* _LINUX_NFS_PAGE_H */ -- cgit v1.2.3 From 0040a390d2fde44a03b3a05cf0cdf3e692ece60f Mon Sep 17 00:00:00 2001 From: William Breathitt Gray Date: Tue, 2 Apr 2019 15:30:36 +0900 Subject: counter: Introduce the Generic Counter interface This patch introduces the Generic Counter interface for supporting counter devices. In the context of the Generic Counter interface, a counter is defined as a device that reports one or more "counts" based on the state changes of one or more "signals" as evaluated by a defined "count function." Driver callbacks should be provided to communicate with the device: to read and write various Signals and Counts, and to set and get the "action mode" and "count function" for various Synapses and Counts respectively. To support a counter device, a driver must first allocate the available Counter Signals via counter_signal structures. These Signals should be stored as an array and set to the signals array member of an allocated counter_device structure before the Counter is registered to the system. Counter Counts may be allocated via counter_count structures, and respective Counter Signal associations (Synapses) made via counter_synapse structures. Associated counter_synapse structures are stored as an array and set to the the synapses array member of the respective counter_count structure. These counter_count structures are set to the counts array member of an allocated counter_device structure before the Counter is registered to the system. A counter device is registered to the system by passing the respective initialized counter_device structure to the counter_register function; similarly, the counter_unregister function unregisters the respective Counter. The devm_counter_register and devm_counter_unregister functions serve as device memory-managed versions of the counter_register and counter_unregister functions respectively. Reviewed-by: Jonathan Cameron Signed-off-by: William Breathitt Gray Signed-off-by: Greg Kroah-Hartman --- include/linux/counter.h | 510 +++++++++++++++++++++++++++++++++++++++++++ include/linux/counter_enum.h | 45 ++++ 2 files changed, 555 insertions(+) create mode 100644 include/linux/counter.h create mode 100644 include/linux/counter_enum.h (limited to 'include/linux') diff --git a/include/linux/counter.h b/include/linux/counter.h new file mode 100644 index 000000000000..a061cdcdef7c --- /dev/null +++ b/include/linux/counter.h @@ -0,0 +1,510 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Counter interface + * Copyright (C) 2018 William Breathitt Gray + */ +#ifndef _COUNTER_H_ +#define _COUNTER_H_ + +#include +#include +#include + +enum counter_count_direction { + COUNTER_COUNT_DIRECTION_FORWARD = 0, + COUNTER_COUNT_DIRECTION_BACKWARD +}; +extern const char *const counter_count_direction_str[2]; + +enum counter_count_mode { + COUNTER_COUNT_MODE_NORMAL = 0, + COUNTER_COUNT_MODE_RANGE_LIMIT, + COUNTER_COUNT_MODE_NON_RECYCLE, + COUNTER_COUNT_MODE_MODULO_N +}; +extern const char *const counter_count_mode_str[4]; + +struct counter_device; +struct counter_signal; + +/** + * struct counter_signal_ext - Counter Signal extensions + * @name: attribute name + * @read: read callback for this attribute; may be NULL + * @write: write callback for this attribute; may be NULL + * @priv: data private to the driver + */ +struct counter_signal_ext { + const char *name; + ssize_t (*read)(struct counter_device *counter, + struct counter_signal *signal, void *priv, char *buf); + ssize_t (*write)(struct counter_device *counter, + struct counter_signal *signal, void *priv, + const char *buf, size_t len); + void *priv; +}; + +/** + * struct counter_signal - Counter Signal node + * @id: unique ID used to identify signal + * @name: device-specific Signal name; ideally, this should match the name + * as it appears in the datasheet documentation + * @ext: optional array of Counter Signal extensions + * @num_ext: number of Counter Signal extensions specified in @ext + * @priv: optional private data supplied by driver + */ +struct counter_signal { + int id; + const char *name; + + const struct counter_signal_ext *ext; + size_t num_ext; + + void *priv; +}; + +/** + * struct counter_signal_enum_ext - Signal enum extension attribute + * @items: Array of strings + * @num_items: Number of items specified in @items + * @set: Set callback function; may be NULL + * @get: Get callback function; may be NULL + * + * The counter_signal_enum_ext structure can be used to implement enum style + * Signal extension attributes. Enum style attributes are those which have a set + * of strings that map to unsigned integer values. The Generic Counter Signal + * enum extension helper code takes care of mapping between value and string, as + * well as generating a "_available" file which contains a list of all available + * items. The get callback is used to query the currently active item; the index + * of the item within the respective items array is returned via the 'item' + * parameter. The set callback is called when the attribute is updated; the + * 'item' parameter contains the index of the newly activated item within the + * respective items array. + */ +struct counter_signal_enum_ext { + const char * const *items; + size_t num_items; + int (*get)(struct counter_device *counter, + struct counter_signal *signal, size_t *item); + int (*set)(struct counter_device *counter, + struct counter_signal *signal, size_t item); +}; + +/** + * COUNTER_SIGNAL_ENUM() - Initialize Signal enum extension + * @_name: Attribute name + * @_e: Pointer to a counter_signal_enum_ext structure + * + * This should usually be used together with COUNTER_SIGNAL_ENUM_AVAILABLE() + */ +#define COUNTER_SIGNAL_ENUM(_name, _e) \ +{ \ + .name = (_name), \ + .read = counter_signal_enum_read, \ + .write = counter_signal_enum_write, \ + .priv = (_e) \ +} + +/** + * COUNTER_SIGNAL_ENUM_AVAILABLE() - Initialize Signal enum available extension + * @_name: Attribute name ("_available" will be appended to the name) + * @_e: Pointer to a counter_signal_enum_ext structure + * + * Creates a read only attribute that lists all the available enum items in a + * newline separated list. This should usually be used together with + * COUNTER_SIGNAL_ENUM() + */ +#define COUNTER_SIGNAL_ENUM_AVAILABLE(_name, _e) \ +{ \ + .name = (_name "_available"), \ + .read = counter_signal_enum_available_read, \ + .priv = (_e) \ +} + +enum counter_synapse_action { + COUNTER_SYNAPSE_ACTION_NONE = 0, + COUNTER_SYNAPSE_ACTION_RISING_EDGE, + COUNTER_SYNAPSE_ACTION_FALLING_EDGE, + COUNTER_SYNAPSE_ACTION_BOTH_EDGES +}; + +/** + * struct counter_synapse - Counter Synapse node + * @action: index of current action mode + * @actions_list: array of available action modes + * @num_actions: number of action modes specified in @actions_list + * @signal: pointer to associated signal + */ +struct counter_synapse { + size_t action; + const enum counter_synapse_action *actions_list; + size_t num_actions; + + struct counter_signal *signal; +}; + +struct counter_count; + +/** + * struct counter_count_ext - Counter Count extension + * @name: attribute name + * @read: read callback for this attribute; may be NULL + * @write: write callback for this attribute; may be NULL + * @priv: data private to the driver + */ +struct counter_count_ext { + const char *name; + ssize_t (*read)(struct counter_device *counter, + struct counter_count *count, void *priv, char *buf); + ssize_t (*write)(struct counter_device *counter, + struct counter_count *count, void *priv, + const char *buf, size_t len); + void *priv; +}; + +enum counter_count_function { + COUNTER_COUNT_FUNCTION_INCREASE = 0, + COUNTER_COUNT_FUNCTION_DECREASE, + COUNTER_COUNT_FUNCTION_PULSE_DIRECTION, + COUNTER_COUNT_FUNCTION_QUADRATURE_X1_A, + COUNTER_COUNT_FUNCTION_QUADRATURE_X1_B, + COUNTER_COUNT_FUNCTION_QUADRATURE_X2_A, + COUNTER_COUNT_FUNCTION_QUADRATURE_X2_B, + COUNTER_COUNT_FUNCTION_QUADRATURE_X4 +}; + +/** + * struct counter_count - Counter Count node + * @id: unique ID used to identify Count + * @name: device-specific Count name; ideally, this should match + * the name as it appears in the datasheet documentation + * @function: index of current function mode + * @functions_list: array available function modes + * @num_functions: number of function modes specified in @functions_list + * @synapses: array of synapses for initialization + * @num_synapses: number of synapses specified in @synapses + * @ext: optional array of Counter Count extensions + * @num_ext: number of Counter Count extensions specified in @ext + * @priv: optional private data supplied by driver + */ +struct counter_count { + int id; + const char *name; + + size_t function; + const enum counter_count_function *functions_list; + size_t num_functions; + + struct counter_synapse *synapses; + size_t num_synapses; + + const struct counter_count_ext *ext; + size_t num_ext; + + void *priv; +}; + +/** + * struct counter_count_enum_ext - Count enum extension attribute + * @items: Array of strings + * @num_items: Number of items specified in @items + * @set: Set callback function; may be NULL + * @get: Get callback function; may be NULL + * + * The counter_count_enum_ext structure can be used to implement enum style + * Count extension attributes. Enum style attributes are those which have a set + * of strings that map to unsigned integer values. The Generic Counter Count + * enum extension helper code takes care of mapping between value and string, as + * well as generating a "_available" file which contains a list of all available + * items. The get callback is used to query the currently active item; the index + * of the item within the respective items array is returned via the 'item' + * parameter. The set callback is called when the attribute is updated; the + * 'item' parameter contains the index of the newly activated item within the + * respective items array. + */ +struct counter_count_enum_ext { + const char * const *items; + size_t num_items; + int (*get)(struct counter_device *counter, struct counter_count *count, + size_t *item); + int (*set)(struct counter_device *counter, struct counter_count *count, + size_t item); +}; + +/** + * COUNTER_COUNT_ENUM() - Initialize Count enum extension + * @_name: Attribute name + * @_e: Pointer to a counter_count_enum_ext structure + * + * This should usually be used together with COUNTER_COUNT_ENUM_AVAILABLE() + */ +#define COUNTER_COUNT_ENUM(_name, _e) \ +{ \ + .name = (_name), \ + .read = counter_count_enum_read, \ + .write = counter_count_enum_write, \ + .priv = (_e) \ +} + +/** + * COUNTER_COUNT_ENUM_AVAILABLE() - Initialize Count enum available extension + * @_name: Attribute name ("_available" will be appended to the name) + * @_e: Pointer to a counter_count_enum_ext structure + * + * Creates a read only attribute that lists all the available enum items in a + * newline separated list. This should usually be used together with + * COUNTER_COUNT_ENUM() + */ +#define COUNTER_COUNT_ENUM_AVAILABLE(_name, _e) \ +{ \ + .name = (_name "_available"), \ + .read = counter_count_enum_available_read, \ + .priv = (_e) \ +} + +/** + * struct counter_device_attr_group - internal container for attribute group + * @attr_group: Counter sysfs attributes group + * @attr_list: list to keep track of created Counter sysfs attributes + * @num_attr: number of Counter sysfs attributes + */ +struct counter_device_attr_group { + struct attribute_group attr_group; + struct list_head attr_list; + size_t num_attr; +}; + +/** + * struct counter_device_state - internal state container for a Counter device + * @id: unique ID used to identify the Counter + * @dev: internal device structure + * @groups_list: attribute groups list (for Signals, Counts, and ext) + * @num_groups: number of attribute groups containers + * @groups: Counter sysfs attribute groups (to populate @dev.groups) + */ +struct counter_device_state { + int id; + struct device dev; + struct counter_device_attr_group *groups_list; + size_t num_groups; + const struct attribute_group **groups; +}; + +/** + * struct counter_signal_read_value - Opaque Signal read value + * @buf: string representation of Signal read value + * @len: length of string in @buf + */ +struct counter_signal_read_value { + char *buf; + size_t len; +}; + +/** + * struct counter_count_read_value - Opaque Count read value + * @buf: string representation of Count read value + * @len: length of string in @buf + */ +struct counter_count_read_value { + char *buf; + size_t len; +}; + +/** + * struct counter_count_write_value - Opaque Count write value + * @buf: string representation of Count write value + */ +struct counter_count_write_value { + const char *buf; +}; + +/** + * struct counter_ops - Callbacks from driver + * @signal_read: optional read callback for Signal attribute. The read + * value of the respective Signal should be passed back via + * the val parameter. val points to an opaque type which + * should be set only by calling the + * counter_signal_read_value_set function from within the + * signal_read callback. + * @count_read: optional read callback for Count attribute. The read + * value of the respective Count should be passed back via + * the val parameter. val points to an opaque type which + * should be set only by calling the + * counter_count_read_value_set function from within the + * count_read callback. + * @count_write: optional write callback for Count attribute. The write + * value for the respective Count is passed in via the val + * parameter. val points to an opaque type which should be + * accessed only by calling the + * counter_count_write_value_get function. + * @function_get: function to get the current count function mode. Returns + * 0 on success and negative error code on error. The index + * of the respective Count's returned function mode should + * be passed back via the function parameter. + * @function_set: function to set the count function mode. function is the + * index of the requested function mode from the respective + * Count's functions_list array. + * @action_get: function to get the current action mode. Returns 0 on + * success and negative error code on error. The index of + * the respective Signal's returned action mode should be + * passed back via the action parameter. + * @action_set: function to set the action mode. action is the index of + * the requested action mode from the respective Synapse's + * actions_list array. + */ +struct counter_ops { + int (*signal_read)(struct counter_device *counter, + struct counter_signal *signal, + struct counter_signal_read_value *val); + int (*count_read)(struct counter_device *counter, + struct counter_count *count, + struct counter_count_read_value *val); + int (*count_write)(struct counter_device *counter, + struct counter_count *count, + struct counter_count_write_value *val); + int (*function_get)(struct counter_device *counter, + struct counter_count *count, size_t *function); + int (*function_set)(struct counter_device *counter, + struct counter_count *count, size_t function); + int (*action_get)(struct counter_device *counter, + struct counter_count *count, + struct counter_synapse *synapse, size_t *action); + int (*action_set)(struct counter_device *counter, + struct counter_count *count, + struct counter_synapse *synapse, size_t action); +}; + +/** + * struct counter_device_ext - Counter device extension + * @name: attribute name + * @read: read callback for this attribute; may be NULL + * @write: write callback for this attribute; may be NULL + * @priv: data private to the driver + */ +struct counter_device_ext { + const char *name; + ssize_t (*read)(struct counter_device *counter, void *priv, char *buf); + ssize_t (*write)(struct counter_device *counter, void *priv, + const char *buf, size_t len); + void *priv; +}; + +/** + * struct counter_device_enum_ext - Counter enum extension attribute + * @items: Array of strings + * @num_items: Number of items specified in @items + * @set: Set callback function; may be NULL + * @get: Get callback function; may be NULL + * + * The counter_device_enum_ext structure can be used to implement enum style + * Counter extension attributes. Enum style attributes are those which have a + * set of strings that map to unsigned integer values. The Generic Counter enum + * extension helper code takes care of mapping between value and string, as well + * as generating a "_available" file which contains a list of all available + * items. The get callback is used to query the currently active item; the index + * of the item within the respective items array is returned via the 'item' + * parameter. The set callback is called when the attribute is updated; the + * 'item' parameter contains the index of the newly activated item within the + * respective items array. + */ +struct counter_device_enum_ext { + const char * const *items; + size_t num_items; + int (*get)(struct counter_device *counter, size_t *item); + int (*set)(struct counter_device *counter, size_t item); +}; + +/** + * COUNTER_DEVICE_ENUM() - Initialize Counter enum extension + * @_name: Attribute name + * @_e: Pointer to a counter_device_enum_ext structure + * + * This should usually be used together with COUNTER_DEVICE_ENUM_AVAILABLE() + */ +#define COUNTER_DEVICE_ENUM(_name, _e) \ +{ \ + .name = (_name), \ + .read = counter_device_enum_read, \ + .write = counter_device_enum_write, \ + .priv = (_e) \ +} + +/** + * COUNTER_DEVICE_ENUM_AVAILABLE() - Initialize Counter enum available extension + * @_name: Attribute name ("_available" will be appended to the name) + * @_e: Pointer to a counter_device_enum_ext structure + * + * Creates a read only attribute that lists all the available enum items in a + * newline separated list. This should usually be used together with + * COUNTER_DEVICE_ENUM() + */ +#define COUNTER_DEVICE_ENUM_AVAILABLE(_name, _e) \ +{ \ + .name = (_name "_available"), \ + .read = counter_device_enum_available_read, \ + .priv = (_e) \ +} + +/** + * struct counter_device - Counter data structure + * @name: name of the device as it appears in the datasheet + * @parent: optional parent device providing the counters + * @device_state: internal device state container + * @ops: callbacks from driver + * @signals: array of Signals + * @num_signals: number of Signals specified in @signals + * @counts: array of Counts + * @num_counts: number of Counts specified in @counts + * @ext: optional array of Counter device extensions + * @num_ext: number of Counter device extensions specified in @ext + * @priv: optional private data supplied by driver + */ +struct counter_device { + const char *name; + struct device *parent; + struct counter_device_state *device_state; + + const struct counter_ops *ops; + + struct counter_signal *signals; + size_t num_signals; + struct counter_count *counts; + size_t num_counts; + + const struct counter_device_ext *ext; + size_t num_ext; + + void *priv; +}; + +enum counter_signal_level { + COUNTER_SIGNAL_LEVEL_LOW = 0, + COUNTER_SIGNAL_LEVEL_HIGH +}; + +enum counter_signal_value_type { + COUNTER_SIGNAL_LEVEL = 0 +}; + +enum counter_count_value_type { + COUNTER_COUNT_POSITION = 0, +}; + +void counter_signal_read_value_set(struct counter_signal_read_value *const val, + const enum counter_signal_value_type type, + void *const data); +void counter_count_read_value_set(struct counter_count_read_value *const val, + const enum counter_count_value_type type, + void *const data); +int counter_count_write_value_get(void *const data, + const enum counter_count_value_type type, + const struct counter_count_write_value *const val); + +int counter_register(struct counter_device *const counter); +void counter_unregister(struct counter_device *const counter); +int devm_counter_register(struct device *dev, + struct counter_device *const counter); +void devm_counter_unregister(struct device *dev, + struct counter_device *const counter); + +#endif /* _COUNTER_H_ */ diff --git a/include/linux/counter_enum.h b/include/linux/counter_enum.h new file mode 100644 index 000000000000..9f917298a88f --- /dev/null +++ b/include/linux/counter_enum.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Counter interface enum functions + * Copyright (C) 2018 William Breathitt Gray + */ +#ifndef _COUNTER_ENUM_H_ +#define _COUNTER_ENUM_H_ + +#include + +struct counter_device; +struct counter_signal; +struct counter_count; + +ssize_t counter_signal_enum_read(struct counter_device *counter, + struct counter_signal *signal, void *priv, + char *buf); +ssize_t counter_signal_enum_write(struct counter_device *counter, + struct counter_signal *signal, void *priv, + const char *buf, size_t len); + +ssize_t counter_signal_enum_available_read(struct counter_device *counter, + struct counter_signal *signal, + void *priv, char *buf); + +ssize_t counter_count_enum_read(struct counter_device *counter, + struct counter_count *count, void *priv, + char *buf); +ssize_t counter_count_enum_write(struct counter_device *counter, + struct counter_count *count, void *priv, + const char *buf, size_t len); + +ssize_t counter_count_enum_available_read(struct counter_device *counter, + struct counter_count *count, + void *priv, char *buf); + +ssize_t counter_device_enum_read(struct counter_device *counter, void *priv, + char *buf); +ssize_t counter_device_enum_write(struct counter_device *counter, void *priv, + const char *buf, size_t len); + +ssize_t counter_device_enum_available_read(struct counter_device *counter, + void *priv, char *buf); + +#endif /* _COUNTER_ENUM_H_ */ -- cgit v1.2.3 From cdff431498623f0971e01bc6f14535361ee81851 Mon Sep 17 00:00:00 2001 From: Patrick Havelange Date: Tue, 2 Apr 2019 15:30:47 +0900 Subject: include/fsl: add common FlexTimer #defines in a separate header. Several files are/will be using the same #defines to use the Flextimer module. Regroup them in a common file. Reviewed-by: Esben Haabendal Signed-off-by: Patrick Havelange Signed-off-by: William Breathitt Gray Signed-off-by: Greg Kroah-Hartman --- include/linux/fsl/ftm.h | 88 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 include/linux/fsl/ftm.h (limited to 'include/linux') diff --git a/include/linux/fsl/ftm.h b/include/linux/fsl/ftm.h new file mode 100644 index 000000000000..d59011acf66c --- /dev/null +++ b/include/linux/fsl/ftm.h @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0 +#ifndef __FSL_FTM_H__ +#define __FSL_FTM_H__ + +#define FTM_SC 0x0 /* Status And Control */ +#define FTM_CNT 0x4 /* Counter */ +#define FTM_MOD 0x8 /* Modulo */ + +#define FTM_CNTIN 0x4C /* Counter Initial Value */ +#define FTM_STATUS 0x50 /* Capture And Compare Status */ +#define FTM_MODE 0x54 /* Features Mode Selection */ +#define FTM_SYNC 0x58 /* Synchronization */ +#define FTM_OUTINIT 0x5C /* Initial State For Channels Output */ +#define FTM_OUTMASK 0x60 /* Output Mask */ +#define FTM_COMBINE 0x64 /* Function For Linked Channels */ +#define FTM_DEADTIME 0x68 /* Deadtime Insertion Control */ +#define FTM_EXTTRIG 0x6C /* FTM External Trigger */ +#define FTM_POL 0x70 /* Channels Polarity */ +#define FTM_FMS 0x74 /* Fault Mode Status */ +#define FTM_FILTER 0x78 /* Input Capture Filter Control */ +#define FTM_FLTCTRL 0x7C /* Fault Control */ +#define FTM_QDCTRL 0x80 /* Quadrature Decoder Control And Status */ +#define FTM_CONF 0x84 /* Configuration */ +#define FTM_FLTPOL 0x88 /* FTM Fault Input Polarity */ +#define FTM_SYNCONF 0x8C /* Synchronization Configuration */ +#define FTM_INVCTRL 0x90 /* FTM Inverting Control */ +#define FTM_SWOCTRL 0x94 /* FTM Software Output Control */ +#define FTM_PWMLOAD 0x98 /* FTM PWM Load */ + +#define FTM_SC_CLK_MASK_SHIFT 3 +#define FTM_SC_CLK_MASK (3 << FTM_SC_CLK_MASK_SHIFT) +#define FTM_SC_TOF 0x80 +#define FTM_SC_TOIE 0x40 +#define FTM_SC_CPWMS 0x20 +#define FTM_SC_CLKS 0x18 +#define FTM_SC_PS_1 0x0 +#define FTM_SC_PS_2 0x1 +#define FTM_SC_PS_4 0x2 +#define FTM_SC_PS_8 0x3 +#define FTM_SC_PS_16 0x4 +#define FTM_SC_PS_32 0x5 +#define FTM_SC_PS_64 0x6 +#define FTM_SC_PS_128 0x7 +#define FTM_SC_PS_MASK 0x7 + +#define FTM_MODE_FAULTIE 0x80 +#define FTM_MODE_FAULTM 0x60 +#define FTM_MODE_CAPTEST 0x10 +#define FTM_MODE_PWMSYNC 0x8 +#define FTM_MODE_WPDIS 0x4 +#define FTM_MODE_INIT 0x2 +#define FTM_MODE_FTMEN 0x1 + +/* NXP Errata: The PHAFLTREN and PHBFLTREN bits are tide to zero internally + * and these bits cannot be set. Flextimer cannot use Filter in + * Quadrature Decoder Mode. + * https://community.nxp.com/thread/467648#comment-1010319 + */ +#define FTM_QDCTRL_PHAFLTREN 0x80 +#define FTM_QDCTRL_PHBFLTREN 0x40 +#define FTM_QDCTRL_PHAPOL 0x20 +#define FTM_QDCTRL_PHBPOL 0x10 +#define FTM_QDCTRL_QUADMODE 0x8 +#define FTM_QDCTRL_QUADDIR 0x4 +#define FTM_QDCTRL_TOFDIR 0x2 +#define FTM_QDCTRL_QUADEN 0x1 + +#define FTM_FMS_FAULTF 0x80 +#define FTM_FMS_WPEN 0x40 +#define FTM_FMS_FAULTIN 0x10 +#define FTM_FMS_FAULTF3 0x8 +#define FTM_FMS_FAULTF2 0x4 +#define FTM_FMS_FAULTF1 0x2 +#define FTM_FMS_FAULTF0 0x1 + +#define FTM_CSC_BASE 0xC +#define FTM_CSC_MSB 0x20 +#define FTM_CSC_MSA 0x10 +#define FTM_CSC_ELSB 0x8 +#define FTM_CSC_ELSA 0x4 +#define FTM_CSC(_channel) (FTM_CSC_BASE + ((_channel) * 8)) + +#define FTM_CV_BASE 0x10 +#define FTM_CV(_channel) (FTM_CV_BASE + ((_channel) * 8)) + +#define FTM_PS_MAX 7 + +#endif -- cgit v1.2.3 From cb4f4949b1c76f29ca804d6ecd879a2e84c88afc Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Tue, 2 Apr 2019 14:50:50 +0200 Subject: clk: at91: allow configuring peripheral PCR layout The PCR register actually changed layout for each SoC. By chance, this didn't have impact on sama5d[2-4] support but since sama5d3, PID is seven bits wide and sama5d4 and sama5d2 don't have DIV. For the DT backward compatibility, keep the layout as is. Signed-off-by: Alexandre Belloni Signed-off-by: Stephen Boyd --- include/linux/clk/at91_pmc.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/clk/at91_pmc.h b/include/linux/clk/at91_pmc.h index 931ab05f771d..b97b8dcbffe6 100644 --- a/include/linux/clk/at91_pmc.h +++ b/include/linux/clk/at91_pmc.h @@ -191,9 +191,6 @@ #define AT91_PMC_PCR_GCKCSS_MASK (0x7 << AT91_PMC_PCR_GCKCSS_OFFSET) #define AT91_PMC_PCR_GCKCSS(n) ((n) << AT91_PMC_PCR_GCKCSS_OFFSET) /* GCK Clock Source Selection */ #define AT91_PMC_PCR_CMD (0x1 << 12) /* Command (read=0, write=1) */ -#define AT91_PMC_PCR_DIV_OFFSET 16 -#define AT91_PMC_PCR_DIV_MASK (0x3 << AT91_PMC_PCR_DIV_OFFSET) -#define AT91_PMC_PCR_DIV(n) ((n) << AT91_PMC_PCR_DIV_OFFSET) /* Divisor Value */ #define AT91_PMC_PCR_GCKDIV_OFFSET 20 #define AT91_PMC_PCR_GCKDIV_MASK (0xff << AT91_PMC_PCR_GCKDIV_OFFSET) #define AT91_PMC_PCR_GCKDIV(n) ((n) << AT91_PMC_PCR_GCKDIV_OFFSET) /* Generated Clock Divisor Value */ -- cgit v1.2.3 From e4cfb823bd71c785fe482e4d7491ef04ac561a7d Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Tue, 2 Apr 2019 14:50:51 +0200 Subject: clk: at91: allow configuring generated PCR layout The PCR register layout for GCLKCSS is changing for the future SoCs, allow configuring it. Signed-off-by: Alexandre Belloni Signed-off-by: Stephen Boyd --- include/linux/clk/at91_pmc.h | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/clk/at91_pmc.h b/include/linux/clk/at91_pmc.h index b97b8dcbffe6..31f00ebf1315 100644 --- a/include/linux/clk/at91_pmc.h +++ b/include/linux/clk/at91_pmc.h @@ -187,13 +187,8 @@ #define AT91_PMC_PCR 0x10c /* Peripheral Control Register [some SAM9 and SAMA5] */ #define AT91_PMC_PCR_PID_MASK 0x3f -#define AT91_PMC_PCR_GCKCSS_OFFSET 8 -#define AT91_PMC_PCR_GCKCSS_MASK (0x7 << AT91_PMC_PCR_GCKCSS_OFFSET) -#define AT91_PMC_PCR_GCKCSS(n) ((n) << AT91_PMC_PCR_GCKCSS_OFFSET) /* GCK Clock Source Selection */ #define AT91_PMC_PCR_CMD (0x1 << 12) /* Command (read=0, write=1) */ -#define AT91_PMC_PCR_GCKDIV_OFFSET 20 -#define AT91_PMC_PCR_GCKDIV_MASK (0xff << AT91_PMC_PCR_GCKDIV_OFFSET) -#define AT91_PMC_PCR_GCKDIV(n) ((n) << AT91_PMC_PCR_GCKDIV_OFFSET) /* Generated Clock Divisor Value */ +#define AT91_PMC_PCR_GCKDIV_MASK GENMASK(27, 20) #define AT91_PMC_PCR_EN (0x1 << 28) /* Enable */ #define AT91_PMC_PCR_GCKEN (0x1 << 29) /* GCK Enable */ -- cgit v1.2.3 From e5be537064dd36129a724c65820e5fc2daebd5f4 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Tue, 2 Apr 2019 14:50:53 +0200 Subject: clk: at91: master: Add sam9x60 support The sam9x60 cpu clock is located at a different offset but is otherwise similar to the master clock. Signed-off-by: Alexandre Belloni Signed-off-by: Stephen Boyd --- include/linux/clk/at91_pmc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clk/at91_pmc.h b/include/linux/clk/at91_pmc.h index 31f00ebf1315..0c53f26ae3d3 100644 --- a/include/linux/clk/at91_pmc.h +++ b/include/linux/clk/at91_pmc.h @@ -74,6 +74,8 @@ #define AT91_PMC_USBDIV_4 (2 << 28) #define AT91_PMC_USB96M (1 << 28) /* Divider by 2 Enable (PLLB only) */ +#define AT91_PMC_CPU_CKR 0x28 /* CPU Clock Register */ + #define AT91_PMC_MCKR 0x30 /* Master Clock Register */ #define AT91_PMC_CSS (3 << 0) /* Master Clock Selection */ #define AT91_PMC_CSS_SLOW (0 << 0) -- cgit v1.2.3 From 5de719e3d01b4abe0de0d7b857148a880ff2a90b Mon Sep 17 00:00:00 2001 From: Yufen Yu Date: Wed, 24 Apr 2019 23:19:05 +0800 Subject: dm mpath: fix missing call of path selector type->end_io After commit 396eaf21ee17 ("blk-mq: improve DM's blk-mq IO merging via blk_insert_cloned_request feedback"), map_request() will requeue the tio when issued clone request return BLK_STS_RESOURCE or BLK_STS_DEV_RESOURCE. Thus, if device driver status is error, a tio may be requeued multiple times until the return value is not DM_MAPIO_REQUEUE. That means type->start_io may be called multiple times, while type->end_io is only called when IO complete. In fact, even without commit 396eaf21ee17, setup_clone() failure can also cause tio requeue and associated missed call to type->end_io. The service-time path selector selects path based on in_flight_size, which is increased by st_start_io() and decreased by st_end_io(). Missed calls to st_end_io() can lead to in_flight_size count error and will cause the selector to make the wrong choice. In addition, queue-length path selector will also be affected. To fix the problem, call type->end_io in ->release_clone_rq before tio requeue. map_info is passed to ->release_clone_rq() for map_request() error path that result in requeue. Fixes: 396eaf21ee17 ("blk-mq: improve DM's blk-mq IO merging via blk_insert_cloned_request feedback") Cc: stable@vger.kernl.org Signed-off-by: Yufen Yu Signed-off-by: Mike Snitzer --- include/linux/device-mapper.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index b0672756d056..e1f51d607cc5 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -62,7 +62,8 @@ typedef int (*dm_clone_and_map_request_fn) (struct dm_target *ti, struct request *rq, union map_info *map_context, struct request **clone); -typedef void (*dm_release_clone_request_fn) (struct request *clone); +typedef void (*dm_release_clone_request_fn) (struct request *clone, + union map_info *map_context); /* * Returns: -- cgit v1.2.3 From 0d1a393d61e44e2755eeff2e62fc8e91f8b296b6 Mon Sep 17 00:00:00 2001 From: Christina Quast Date: Tue, 2 Apr 2019 16:01:46 +0200 Subject: fs: kernfs: Corrected spelling mistake flies => files Signed-off-by: Christina Quast Signed-off-by: Greg Kroah-Hartman --- include/linux/kernfs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index c8893f663470..e446ab97ee0c 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -64,7 +64,7 @@ enum kernfs_root_flag { KERNFS_ROOT_CREATE_DEACTIVATED = 0x0001, /* - * For regular flies, if the opener has CAP_DAC_OVERRIDE, open(2) + * For regular files, if the opener has CAP_DAC_OVERRIDE, open(2) * succeeds regardless of the RW permissions. sysfs had an extra * layer of enforcement where open(2) fails with -EACCES regardless * of CAP_DAC_OVERRIDE if the permission doesn't have the -- cgit v1.2.3 From 82500a810ee26ac542d128499d7adae163e61adb Mon Sep 17 00:00:00 2001 From: Mathieu Poirier Date: Thu, 25 Apr 2019 13:52:52 -0600 Subject: coresight: etm4x: Add kernel configuration for CONTEXTID Set the proper bit in the configuration register when contextID tracing has been requested by user space. That way PE_CONTEXT elements are generated by the tracers when a process is installed on a CPU. Signed-off-by: Mathieu Poirier Reviewed-by: Suzuki K Poulose Tested-by: Leo Yan Tested-by: Robert Walker Signed-off-by: Greg Kroah-Hartman --- include/linux/coresight-pmu.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/coresight-pmu.h b/include/linux/coresight-pmu.h index a1a959ba24ff..b0e35eec6499 100644 --- a/include/linux/coresight-pmu.h +++ b/include/linux/coresight-pmu.h @@ -12,11 +12,13 @@ /* ETMv3.5/PTM's ETMCR config bit */ #define ETM_OPT_CYCACC 12 +#define ETM_OPT_CTXTID 14 #define ETM_OPT_TS 28 #define ETM_OPT_RETSTK 29 /* ETMv4 CONFIGR programming bits for the ETM OPTs */ #define ETM4_CFG_BIT_CYCACC 4 +#define ETM4_CFG_BIT_CTXTID 6 #define ETM4_CFG_BIT_TS 11 #define ETM4_CFG_BIT_RETSTK 12 -- cgit v1.2.3 From 6c817a95d84b8388e97d4e2b6ee361a660e244e9 Mon Sep 17 00:00:00 2001 From: Mathieu Poirier Date: Thu, 25 Apr 2019 13:52:55 -0600 Subject: coresight: Adding return code to sink::disable() operation In preparation to handle device reference counting inside of the sink drivers, add a return code to the sink::disable() operation so that proper action can be taken if a sink has not been disabled. Signed-off-by: Mathieu Poirier Reviewed-by: Suzuki K Poulose Tested-by: Leo Yan Tested-by: Robert Walker Signed-off-by: Greg Kroah-Hartman --- include/linux/coresight.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/coresight.h b/include/linux/coresight.h index 7b87965f7a65..189cc6ddc92b 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -192,7 +192,7 @@ struct coresight_device { */ struct coresight_ops_sink { int (*enable)(struct coresight_device *csdev, u32 mode, void *data); - void (*disable)(struct coresight_device *csdev); + int (*disable)(struct coresight_device *csdev); void *(*alloc_buffer)(struct coresight_device *csdev, int cpu, void **pages, int nr_pages, bool overwrite); void (*free_buffer)(void *config); -- cgit v1.2.3 From a0f08a6a9fee0ce3f2d36e3e30799e4c1ec171f4 Mon Sep 17 00:00:00 2001 From: Mathieu Poirier Date: Thu, 25 Apr 2019 13:53:01 -0600 Subject: coresight: Communicate perf event to sink buffer allocation functions Make struct perf_event available to sink buffer allocation functions in order to use the pid they carry to allocate and free buffer memory along with regimenting access to what source a sink can collect data for. Signed-off-by: Mathieu Poirier Tested-by: Leo Yan Tested-by: Robert Walker Signed-off-by: Greg Kroah-Hartman --- include/linux/coresight.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/coresight.h b/include/linux/coresight.h index 189cc6ddc92b..62a520df8add 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -193,8 +193,9 @@ struct coresight_device { struct coresight_ops_sink { int (*enable)(struct coresight_device *csdev, u32 mode, void *data); int (*disable)(struct coresight_device *csdev); - void *(*alloc_buffer)(struct coresight_device *csdev, int cpu, - void **pages, int nr_pages, bool overwrite); + void *(*alloc_buffer)(struct coresight_device *csdev, + struct perf_event *event, void **pages, + int nr_pages, bool overwrite); void (*free_buffer)(void *config); unsigned long (*update_buffer)(struct coresight_device *csdev, struct perf_output_handle *handle, -- cgit v1.2.3 From aa30f47cf666111f6bbfd15f290a27e8a7b9d854 Mon Sep 17 00:00:00 2001 From: Kimberly Brown Date: Mon, 1 Apr 2019 22:51:18 -0400 Subject: kobject: Add support for default attribute groups to kobj_type MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit kobj_type currently uses a list of individual attributes to store default attributes. Attribute groups are more flexible than a list of attributes because groups provide support for attribute visibility. So, add support for default attribute groups to kobj_type. In future patches, the existing uses of kobj_type’s attribute list will be converted to attribute groups. When that is complete, kobj_type’s attribute list, “default_attrs”, will be removed. Signed-off-by: Kimberly Brown Signed-off-by: Greg Kroah-Hartman --- include/linux/kobject.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 1ab0d624fb36..e2ca0a292e21 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -139,7 +139,8 @@ static inline bool kobject_has_children(struct kobject *kobj) struct kobj_type { void (*release)(struct kobject *kobj); const struct sysfs_ops *sysfs_ops; - struct attribute **default_attrs; + struct attribute **default_attrs; /* use default_groups instead */ + const struct attribute_group **default_groups; const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj); const void *(*namespace)(struct kobject *kobj); void (*get_ownership)(struct kobject *kobj, kuid_t *uid, kgid_t *gid); -- cgit v1.2.3 From f9ccd7c3a1d87cea3a6f9ed6c946dee9e7456b2e Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Thu, 25 Apr 2019 11:04:13 +0200 Subject: PM / Domains: Allow to attach a CPU via genpd_dev_pm_attach_by_id|name() Attaching a device via genpd_dev_pm_attach_by_id|name() makes genpd allocate a virtual device that it attaches instead. This leads to a problem in case when the base device belongs to a CPU. More precisely, it means genpd_get_cpu() compares against the virtual device, thus it fails to find a matching CPU device. Address this limitation by passing the base device to genpd_get_cpu() rather than the virtual device. Moreover, to deal with detach correctly from genpd_remove_device(), store the CPU number in struct generic_pm_domain_data, so as to be able to clear the corresponding bit in the cpumask for the genpd. Signed-off-by: Ulf Hansson Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- include/linux/pm_domain.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index bc82e74560ee..0e8e356bed6a 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -175,6 +175,7 @@ struct generic_pm_domain_data { struct pm_domain_data base; struct gpd_timing_data td; struct notifier_block nb; + int cpu; unsigned int performance_state; void *data; }; -- cgit v1.2.3 From 4166bfe53093b687a0b1b22e5d943e143b8089b2 Mon Sep 17 00:00:00 2001 From: Jonathan Chocron Date: Thu, 28 Mar 2019 13:57:56 +0200 Subject: PCI: al: Add Amazon Annapurna Labs PCIe host controller driver Add driver for Amazon's Annapurna Labs PCIe host controller. The controller is based on DesignWare's IP. The controller doesn't support accessing the Root Port's config space via ECAM, so we obtain its base address via an AMZN0001 device. Furthermore, the DesignWare PCIe controller doesn't filter out config transactions sent to devices 1 and up on its bus, so they are filtered by the driver. All subordinate buses do support ECAM access. Implementing specific PCI config access functions involves: - Adding an init function to obtain the Root Port's base address from an AMZN0001 device. - Adding a new entry in the MCFG quirk array. [bhelgaas: Note that there is no Kconfig option for this driver because it is only intended for use with the generic ACPI host bridge driver. This driver is only needed because the DesignWare IP doesn't completely support ECAM access to the root bus.] Link: https://lore.kernel.org/lkml/1553774276-24675-1-git-send-email-jonnyc@amazon.com Co-developed-by: Vladimir Aerov Signed-off-by: Jonathan Chocron Signed-off-by: Vladimir Aerov Signed-off-by: Bjorn Helgaas Reviewed-by: David Woodhouse Reviewed-by: Benjamin Herrenschmidt Acked-by: Lorenzo Pieralisi --- include/linux/pci-ecam.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pci-ecam.h b/include/linux/pci-ecam.h index 29efa09d686b..a73164c85e78 100644 --- a/include/linux/pci-ecam.h +++ b/include/linux/pci-ecam.h @@ -56,6 +56,7 @@ extern struct pci_ecam_ops thunder_pem_ecam_ops; /* Cavium ThunderX 1.x & 2.x */ extern struct pci_ecam_ops pci_thunder_ecam_ops; /* Cavium ThunderX 1.x */ extern struct pci_ecam_ops xgene_v1_pcie_ecam_ops; /* APM X-Gene PCIe v1 */ extern struct pci_ecam_ops xgene_v2_pcie_ecam_ops; /* APM X-Gene PCIe v2.x */ +extern struct pci_ecam_ops al_pcie_ops; /* Amazon Annapurna Labs PCIe */ #endif #ifdef CONFIG_PCI_HOST_COMMON -- cgit v1.2.3 From 118c8e9ae629d35fa9b3d27a7b9d59298b1b4183 Mon Sep 17 00:00:00 2001 From: Stanislav Fomichev Date: Thu, 25 Apr 2019 14:37:23 -0700 Subject: bpf: support BPF_PROG_QUERY for BPF_FLOW_DISSECTOR attach_type target_fd is target namespace. If there is a flow dissector BPF program attached to that namespace, its (single) id is returned. v5: * drop net ref right after rcu unlock (Daniel Borkmann) v4: * add missing put_net (Jann Horn) v3: * add missing inline to skb_flow_dissector_prog_query static def (kbuild test robot ) v2: * don't sleep in rcu critical section (Jakub Kicinski) * check input prog_cnt (exit early) Cc: Jann Horn Signed-off-by: Stanislav Fomichev Signed-off-by: Daniel Borkmann --- include/linux/skbuff.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 998256c2820b..6d58fa8a65fd 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1258,11 +1258,19 @@ void skb_flow_dissector_init(struct flow_dissector *flow_dissector, unsigned int key_count); #ifdef CONFIG_NET +int skb_flow_dissector_prog_query(const union bpf_attr *attr, + union bpf_attr __user *uattr); int skb_flow_dissector_bpf_prog_attach(const union bpf_attr *attr, struct bpf_prog *prog); int skb_flow_dissector_bpf_prog_detach(const union bpf_attr *attr); #else +static inline int skb_flow_dissector_prog_query(const union bpf_attr *attr, + union bpf_attr __user *uattr) +{ + return -EOPNOTSUPP; +} + static inline int skb_flow_dissector_bpf_prog_attach(const union bpf_attr *attr, struct bpf_prog *prog) { -- cgit v1.2.3 From cdd6ad3ac63d2fa320baefcf92a02a918375c30f Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Tue, 5 Mar 2019 05:30:01 -0500 Subject: KVM: polling: add architecture backend to disable polling There are cases where halt polling is unwanted. For example when running KVM on an over committed LPAR we rather want to give back the CPU to neighbour LPARs instead of polling. Let us provide a callback that allows architectures to disable polling. Signed-off-by: Christian Borntraeger Acked-by: Paolo Bonzini Reviewed-by: Cornelia Huck Signed-off-by: Christian Borntraeger --- include/linux/kvm_host.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 9d55c63db09b..b3aff1a3f633 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1305,6 +1305,16 @@ static inline bool vcpu_valid_wakeup(struct kvm_vcpu *vcpu) } #endif /* CONFIG_HAVE_KVM_INVALID_WAKEUPS */ +#ifdef CONFIG_HAVE_KVM_NO_POLL +/* Callback that tells if we must not poll */ +bool kvm_arch_no_poll(struct kvm_vcpu *vcpu); +#else +static inline bool kvm_arch_no_poll(struct kvm_vcpu *vcpu) +{ + return false; +} +#endif /* CONFIG_HAVE_KVM_NO_POLL */ + #ifdef CONFIG_HAVE_KVM_VCPU_ASYNC_IOCTL long kvm_arch_vcpu_async_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg); -- cgit v1.2.3 From f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3 Mon Sep 17 00:00:00 2001 From: Sara Sharon Date: Fri, 15 Mar 2019 17:39:03 +0200 Subject: cfg80211: support non-inheritance element Subelement profile may specify element IDs it doesn't inherit from the management frame. Support it. Signed-off-by: Sara Sharon Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 48703ec60d06..522881f31938 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -2487,6 +2487,7 @@ enum ieee80211_eid_ext { WLAN_EID_EXT_HE_MU_EDCA = 38, WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME = 52, WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION = 55, + WLAN_EID_EXT_NON_INHERITANCE = 56, }; /* Action category code */ -- cgit v1.2.3 From abaea61c79ea7a03fde7db5b48414143546b07c4 Mon Sep 17 00:00:00 2001 From: Liad Kaufman Date: Fri, 15 Mar 2019 17:39:07 +0200 Subject: ieee80211: update HE IEs to D4.0 spec Update the out-dated comments as well, and have them point to the correct sections in the D4.0 spec. Signed-off-by: Liad Kaufman Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 522881f31938..61f0a316c6ac 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -1557,7 +1557,7 @@ struct ieee80211_vht_operation { * struct ieee80211_he_cap_elem - HE capabilities element * * This structure is the "HE capabilities element" fixed fields as - * described in P802.11ax_D3.0 section 9.4.2.237.2 and 9.4.2.237.3 + * described in P802.11ax_D4.0 section 9.4.2.242.2 and 9.4.2.242.3 */ struct ieee80211_he_cap_elem { u8 mac_cap_info[6]; @@ -1619,12 +1619,12 @@ struct ieee80211_he_mcs_nss_supp { * struct ieee80211_he_operation - HE capabilities element * * This structure is the "HE operation element" fields as - * described in P802.11ax_D3.0 section 9.4.2.238 + * described in P802.11ax_D4.0 section 9.4.2.243 */ struct ieee80211_he_operation { __le32 he_oper_params; __le16 he_mcs_nss_set; - /* Optional 0,1,3 or 4 bytes: depends on @he_oper_params */ + /* Optional 0,1,3,4,5,7 or 8 bytes: depends on @he_oper_params */ u8 optional[0]; } __packed; @@ -1632,7 +1632,7 @@ struct ieee80211_he_operation { * struct ieee80211_he_mu_edca_param_ac_rec - MU AC Parameter Record field * * This structure is the "MU AC Parameter Record" fields as - * described in P802.11ax_D2.0 section 9.4.2.240 + * described in P802.11ax_D4.0 section 9.4.2.245 */ struct ieee80211_he_mu_edca_param_ac_rec { u8 aifsn; @@ -1644,7 +1644,7 @@ struct ieee80211_he_mu_edca_param_ac_rec { * struct ieee80211_mu_edca_param_set - MU EDCA Parameter Set element * * This structure is the "MU EDCA Parameter Set element" fields as - * described in P802.11ax_D2.0 section 9.4.2.240 + * described in P802.11ax_D4.0 section 9.4.2.245 */ struct ieee80211_mu_edca_param_set { u8 mu_qos_info; @@ -2026,6 +2026,7 @@ ieee80211_he_ppe_size(u8 ppe_thres_hdr, const u8 *phy_cap_info) #define IEEE80211_HE_OPERATION_VHT_OPER_INFO 0x00004000 #define IEEE80211_HE_OPERATION_CO_HOSTED_BSS 0x00008000 #define IEEE80211_HE_OPERATION_ER_SU_DISABLE 0x00010000 +#define IEEE80211_HE_OPERATION_6GHZ_OP_INFO 0x00020000 #define IEEE80211_HE_OPERATION_BSS_COLOR_MASK 0x3f000000 #define IEEE80211_HE_OPERATION_BSS_COLOR_OFFSET 24 #define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR 0x40000000 @@ -2056,6 +2057,8 @@ ieee80211_he_oper_size(const u8 *he_oper_ie) oper_len += 3; if (he_oper_params & IEEE80211_HE_OPERATION_CO_HOSTED_BSS) oper_len++; + if (he_oper_params & IEEE80211_HE_OPERATION_6GHZ_OP_INFO) + oper_len += 4; /* Add the first byte (extension ID) to the total length */ oper_len++; -- cgit v1.2.3 From ffcfc20f7489ecc1b5fbde68dae14f72c47330ab Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 9 Apr 2019 18:02:19 +0300 Subject: dmaengine: idma64: Move driver name to the header There are two drivers that are relying on the iDMA 64-bit driver name to match. Instead of duplicating string in both of them, dedicate a header file and share it between users. Signed-off-by: Andy Shevchenko Signed-off-by: Vinod Koul --- include/linux/dma/idma64.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 include/linux/dma/idma64.h (limited to 'include/linux') diff --git a/include/linux/dma/idma64.h b/include/linux/dma/idma64.h new file mode 100644 index 000000000000..621cfae60554 --- /dev/null +++ b/include/linux/dma/idma64.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Definitions for the Intel integrated DMA 64-bit + * + * Copyright (C) 2019 Intel Corporation + */ + +#ifndef __LINUX_DMA_IDMA64_H__ +#define __LINUX_DMA_IDMA64_H__ + +/* Platform driver name */ +#define LPSS_IDMA64_DRIVER_NAME "idma64" + +#endif /* __LINUX_DMA_IDMA64_H__ */ -- cgit v1.2.3 From 230c6402b1b305c21c91b56cd9de95a608898506 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 26 Apr 2019 13:07:27 -0400 Subject: ovl_lookup_real_one(): don't bother with strlen() Signed-off-by: Al Viro --- include/linux/dcache.h | 2 +- include/linux/fsnotify.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 2f044e232e1b..73c3a8f90580 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -593,7 +593,7 @@ static inline struct inode *d_real_inode(const struct dentry *dentry) } struct name_snapshot { - const unsigned char *name; + struct qstr name; unsigned char inline_name[DNAME_INLINE_LEN]; }; void take_dentry_name_snapshot(struct name_snapshot *, struct dentry *); diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h index 09587e2860b5..e09cfff69bb2 100644 --- a/include/linux/fsnotify.h +++ b/include/linux/fsnotify.h @@ -178,7 +178,7 @@ static inline void fsnotify_nameremove(struct dentry *dentry, int isdir) take_dentry_name_snapshot(&name, dentry); fsnotify(d_inode(parent), mask, d_inode(dentry), FSNOTIFY_EVENT_INODE, - name.name, 0); + name.name.name, 0); release_dentry_name_snapshot(&name); dput(parent); -- cgit v1.2.3 From f4ec3a3d43bcdcf6295af9f3715a5a33f59bb6ce Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 26 Apr 2019 13:21:24 -0400 Subject: switch fsnotify_move() to passing const struct qstr * for old_name note that in the second (RENAME_EXCHANGE) call of fsnotify_move() in vfs_rename() the old_dentry->d_name is guaranteed to be unchanged throughout the evaluation of fsnotify_move() (by the fact that the parent directory is locked exclusive), so we don't need to fetch old_dentry->d_name.name in the caller. Signed-off-by: Al Viro --- include/linux/fsnotify.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h index e09cfff69bb2..f816bd29b82c 100644 --- a/include/linux/fsnotify.h +++ b/include/linux/fsnotify.h @@ -102,7 +102,7 @@ static inline void fsnotify_link_count(struct inode *inode) * fsnotify_move - file old_name at old_dir was moved to new_name at new_dir */ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir, - const unsigned char *old_name, + const struct qstr *old_name, int isdir, struct inode *target, struct dentry *moved) { @@ -122,7 +122,7 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir, mask |= FS_ISDIR; } - fsnotify(old_dir, old_dir_mask, source, FSNOTIFY_EVENT_INODE, old_name, + fsnotify(old_dir, old_dir_mask, source, FSNOTIFY_EVENT_INODE, old_name->name, fs_cookie); fsnotify(new_dir, new_dir_mask, source, FSNOTIFY_EVENT_INODE, new_name, fs_cookie); -- cgit v1.2.3 From 25b229dff4ffffd0fad2dd409faf1e2ae4d94866 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 26 Apr 2019 13:37:25 -0400 Subject: fsnotify(): switch to passing const struct qstr * for file_name Note that in fnsotify_move() and fsnotify_link() we are guaranteed that dentry->d_name won't change during the fsnotify() evaluation (by having the parent directory locked exclusive), so we don't need to fetch dentry->d_name.name in the callers. In fsnotify_dirent() the same stability of dentry->d_name is also true, but it's a bit more convoluted - there is one callchain (devpts_pty_new() -> fsnotify_create() -> fsnotify_dirent()) where the parent is _not_ locked, but on devpts ->d_name of everything is unchanging; it has neither explicit nor implicit renames. Signed-off-by: Al Viro --- include/linux/fsnotify.h | 10 +++++----- include/linux/fsnotify_backend.h | 4 ++-- 2 files changed, 7 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h index f816bd29b82c..0c0ef3078a22 100644 --- a/include/linux/fsnotify.h +++ b/include/linux/fsnotify.h @@ -27,7 +27,7 @@ static inline int fsnotify_dirent(struct inode *dir, struct dentry *dentry, __u32 mask) { return fsnotify(dir, mask, d_inode(dentry), FSNOTIFY_EVENT_INODE, - dentry->d_name.name, 0); + &dentry->d_name, 0); } /* Notify this dentry's parent about a child's events. */ @@ -111,7 +111,7 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir, __u32 old_dir_mask = FS_MOVED_FROM; __u32 new_dir_mask = FS_MOVED_TO; __u32 mask = FS_MOVE_SELF; - const unsigned char *new_name = moved->d_name.name; + const struct qstr *new_name = &moved->d_name; if (old_dir == new_dir) old_dir_mask |= FS_DN_RENAME; @@ -122,7 +122,7 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir, mask |= FS_ISDIR; } - fsnotify(old_dir, old_dir_mask, source, FSNOTIFY_EVENT_INODE, old_name->name, + fsnotify(old_dir, old_dir_mask, source, FSNOTIFY_EVENT_INODE, old_name, fs_cookie); fsnotify(new_dir, new_dir_mask, source, FSNOTIFY_EVENT_INODE, new_name, fs_cookie); @@ -178,7 +178,7 @@ static inline void fsnotify_nameremove(struct dentry *dentry, int isdir) take_dentry_name_snapshot(&name, dentry); fsnotify(d_inode(parent), mask, d_inode(dentry), FSNOTIFY_EVENT_INODE, - name.name.name, 0); + &name.name, 0); release_dentry_name_snapshot(&name); dput(parent); @@ -218,7 +218,7 @@ static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct fsnotify_link_count(inode); audit_inode_child(dir, new_dentry, AUDIT_TYPE_CHILD_CREATE); - fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE, new_dentry->d_name.name, 0); + fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE, &new_dentry->d_name, 0); } /* diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index dfc28fcb4de8..7eb7821766d5 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -350,7 +350,7 @@ struct fsnotify_mark { /* main fsnotify call to send events */ extern int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is, - const unsigned char *name, u32 cookie); + const struct qstr *name, u32 cookie); extern int __fsnotify_parent(const struct path *path, struct dentry *dentry, __u32 mask); extern void __fsnotify_inode_delete(struct inode *inode); extern void __fsnotify_vfsmount_delete(struct vfsmount *mnt); @@ -505,7 +505,7 @@ static inline void fsnotify_init_event(struct fsnotify_event *event, #else static inline int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is, - const unsigned char *name, u32 cookie) + const struct qstr *name, u32 cookie) { return 0; } -- cgit v1.2.3 From 90b6c5c73c6904ac200161fc38974d867f0535b0 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Thu, 25 Apr 2019 10:57:37 -0700 Subject: clk: Remove CLK_IS_BASIC clk flag This flag was historically used to indicate that a clk is a "basic" type of clk like a mux, divider, gate, etc. This never turned out to be very useful though because it was hard to cleanly split "basic" clks from other clks in a system. This one flag was a way for type introspection and it just didn't scale. If anything, it was used by the TI clk driver to indicate that a clk_hw wasn't contained in the SoC specific clk structure. We can get rid of this define now that TI is finding those clks a different way. Cc: Tero Kristo Cc: Ralf Baechle Cc: Paul Burton Cc: James Hogan Cc: Cc: Thierry Reding Cc: Kevin Hilman Cc: Cc: Acked-by: Thierry Reding Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index b7cf80a71293..9245a377295b 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -24,7 +24,7 @@ #define CLK_SET_RATE_PARENT BIT(2) /* propagate rate change up one level */ #define CLK_IGNORE_UNUSED BIT(3) /* do not gate even if unused */ /* unused */ -#define CLK_IS_BASIC BIT(5) /* Basic clk, can't do a to_clk_foo() */ + /* unused */ #define CLK_GET_RATE_NOCACHE BIT(6) /* do not use the cached clk rate */ #define CLK_SET_RATE_NO_REPARENT BIT(7) /* don't re-parent on rate change */ #define CLK_GET_ACCURACY_NOCACHE BIT(8) /* do not use the cached clk accuracy */ -- cgit v1.2.3 From e43e9c339a78a0978f4ce473f645cedc05e6a57c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 26 Apr 2019 13:51:03 -0400 Subject: fsnotify: switch send_to_group() and ->handle_event to const struct qstr * note that conditions surrounding accesses to dname in audit_watch_handle_event() and audit_mark_handle_event() guarantee that dname won't have been NULL. Signed-off-by: Al Viro --- include/linux/fsnotify_backend.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index 7eb7821766d5..c28f6ed1f59b 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -117,7 +117,7 @@ struct fsnotify_ops { int (*handle_event)(struct fsnotify_group *group, struct inode *inode, u32 mask, const void *data, int data_type, - const unsigned char *file_name, u32 cookie, + const struct qstr *file_name, u32 cookie, struct fsnotify_iter_info *iter_info); void (*free_group_priv)(struct fsnotify_group *group); void (*freeing_mark)(struct fsnotify_mark *mark, struct fsnotify_group *group); -- cgit v1.2.3 From 79caa5fad47c69874f9efc4ac3128cc3f6d36f6e Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 24 Apr 2019 17:46:42 -0400 Subject: SUNRPC: Cache cred of process creating the rpc_client When converting kuids to AUTH_UNIX creds, etc we will want to use the same user namespace as the process that created the rpc client. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/sunrpc/clnt.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index 943762acfcd4..6e8073140a5d 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -72,6 +72,7 @@ struct rpc_clnt { struct dentry *cl_debugfs; /* debugfs directory */ #endif struct rpc_xprt_iter cl_xpi; + const struct cred *cl_cred; }; /* @@ -126,6 +127,7 @@ struct rpc_create_args { unsigned long flags; char *client_name; struct svc_xprt *bc_xprt; /* NFSv4.1 backchannel */ + const struct cred *cred; }; struct rpc_add_xprt_test { -- cgit v1.2.3 From 1a58e8a0e5c1f188a80eb9e505bc77d78a31a4ec Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 24 Apr 2019 17:46:43 -0400 Subject: NFS: Store the credential of the mount process in the nfs_server Store the credential of the mount process so that we can determine information such as the user namespace. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/nfs_fs_sb.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 0fbc5d3c5e53..1e78032a174b 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -241,6 +241,9 @@ struct nfs_server { /* XDR related information */ unsigned int read_hdrsize; + + /* User namespace info */ + const struct cred *cred; }; /* Server capabilities */ -- cgit v1.2.3 From b422df915cef80333d7a1732e6ed81f41db12b79 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 24 Apr 2019 17:46:50 -0400 Subject: lockd: Store the lockd client credential in struct nlm_host When we create a new lockd client, we want to be able to pass the correct credential of the process that created the struct nlm_host. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- include/linux/lockd/bind.h | 1 + include/linux/lockd/lockd.h | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h index 053a4ef3d431..8c0cf1059443 100644 --- a/include/linux/lockd/bind.h +++ b/include/linux/lockd/bind.h @@ -46,6 +46,7 @@ struct nlmclnt_initdata { int noresvport; struct net *net; const struct nlmclnt_operations *nlmclnt_ops; + const struct cred *cred; }; /* diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index b065ef406770..c9b422dde542 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -70,6 +70,7 @@ struct nlm_host { struct nsm_handle *h_nsmhandle; /* NSM status handle */ char *h_addrbuf; /* address eyecatcher */ struct net *net; /* host net */ + const struct cred *h_cred; char nodename[UNX_MAXNODENAME + 1]; const struct nlmclnt_operations *h_nlmclnt_ops; /* Callback ops for NLM users */ }; @@ -229,7 +230,8 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap, const u32 version, const char *hostname, int noresvport, - struct net *net); + struct net *net, + const struct cred *cred); void nlmclnt_release_host(struct nlm_host *); struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp, const char *hostname, -- cgit v1.2.3 From 9df1c28bb75217b244257152ab7d788bb2a386d0 Mon Sep 17 00:00:00 2001 From: Matt Mullins Date: Fri, 26 Apr 2019 11:49:47 -0700 Subject: bpf: add writable context for raw tracepoints This is an opt-in interface that allows a tracepoint to provide a safe buffer that can be written from a BPF_PROG_TYPE_RAW_TRACEPOINT program. The size of the buffer must be a compile-time constant, and is checked before allowing a BPF program to attach to a tracepoint that uses this feature. The pointer to this buffer will be the first argument of tracepoints that opt in; the pointer is valid and can be bpf_probe_read() by both BPF_PROG_TYPE_RAW_TRACEPOINT and BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE programs that attach to such a tracepoint, but the buffer to which it points may only be written by the latter. Signed-off-by: Matt Mullins Acked-by: Yonghong Song Signed-off-by: Alexei Starovoitov --- include/linux/bpf.h | 2 ++ include/linux/bpf_types.h | 1 + include/linux/tracepoint-defs.h | 1 + 3 files changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index f15432d90728..cd6341eabd74 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -272,6 +272,7 @@ enum bpf_reg_type { PTR_TO_SOCK_COMMON_OR_NULL, /* reg points to sock_common or NULL */ PTR_TO_TCP_SOCK, /* reg points to struct tcp_sock */ PTR_TO_TCP_SOCK_OR_NULL, /* reg points to struct tcp_sock or NULL */ + PTR_TO_TP_BUFFER, /* reg points to a writable raw tp's buffer */ }; /* The information passed from prog-specific *_is_valid_access @@ -361,6 +362,7 @@ struct bpf_prog_aux { u32 used_map_cnt; u32 max_ctx_offset; u32 max_pkt_offset; + u32 max_tp_access; u32 stack_depth; u32 id; u32 func_cnt; /* used by non-func prog as the number of func progs */ diff --git a/include/linux/bpf_types.h b/include/linux/bpf_types.h index d26991a16894..a10d37bce364 100644 --- a/include/linux/bpf_types.h +++ b/include/linux/bpf_types.h @@ -25,6 +25,7 @@ BPF_PROG_TYPE(BPF_PROG_TYPE_KPROBE, kprobe) BPF_PROG_TYPE(BPF_PROG_TYPE_TRACEPOINT, tracepoint) BPF_PROG_TYPE(BPF_PROG_TYPE_PERF_EVENT, perf_event) BPF_PROG_TYPE(BPF_PROG_TYPE_RAW_TRACEPOINT, raw_tracepoint) +BPF_PROG_TYPE(BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, raw_tracepoint_writable) #endif #ifdef CONFIG_CGROUP_BPF BPF_PROG_TYPE(BPF_PROG_TYPE_CGROUP_DEVICE, cg_dev) diff --git a/include/linux/tracepoint-defs.h b/include/linux/tracepoint-defs.h index 49ba9cde7e4b..b29950a19205 100644 --- a/include/linux/tracepoint-defs.h +++ b/include/linux/tracepoint-defs.h @@ -45,6 +45,7 @@ struct bpf_raw_event_map { struct tracepoint *tp; void *bpf_func; u32 num_args; + u32 writable_size; } __aligned(32); #endif -- cgit v1.2.3 From 6ac99e8f23d4b10258406ca0dd7bffca5f31da9d Mon Sep 17 00:00:00 2001 From: Martin KaFai Lau Date: Fri, 26 Apr 2019 16:39:39 -0700 Subject: bpf: Introduce bpf sk local storage MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After allowing a bpf prog to - directly read the skb->sk ptr - get the fullsock bpf_sock by "bpf_sk_fullsock()" - get the bpf_tcp_sock by "bpf_tcp_sock()" - get the listener sock by "bpf_get_listener_sock()" - avoid duplicating the fields of "(bpf_)sock" and "(bpf_)tcp_sock" into different bpf running context. this patch is another effort to make bpf's network programming more intuitive to do (together with memory and performance benefit). When bpf prog needs to store data for a sk, the current practice is to define a map with the usual 4-tuples (src/dst ip/port) as the key. If multiple bpf progs require to store different sk data, multiple maps have to be defined. Hence, wasting memory to store the duplicated keys (i.e. 4 tuples here) in each of the bpf map. [ The smallest key could be the sk pointer itself which requires some enhancement in the verifier and it is a separate topic. ] Also, the bpf prog needs to clean up the elem when sk is freed. Otherwise, the bpf map will become full and un-usable quickly. The sk-free tracking currently could be done during sk state transition (e.g. BPF_SOCK_OPS_STATE_CB). The size of the map needs to be predefined which then usually ended-up with an over-provisioned map in production. Even the map was re-sizable, while the sk naturally come and go away already, this potential re-size operation is arguably redundant if the data can be directly connected to the sk itself instead of proxy-ing through a bpf map. This patch introduces sk->sk_bpf_storage to provide local storage space at sk for bpf prog to use. The space will be allocated when the first bpf prog has created data for this particular sk. The design optimizes the bpf prog's lookup (and then optionally followed by an inline update). bpf_spin_lock should be used if the inline update needs to be protected. BPF_MAP_TYPE_SK_STORAGE: ----------------------- To define a bpf "sk-local-storage", a BPF_MAP_TYPE_SK_STORAGE map (new in this patch) needs to be created. Multiple BPF_MAP_TYPE_SK_STORAGE maps can be created to fit different bpf progs' needs. The map enforces BTF to allow printing the sk-local-storage during a system-wise sk dump (e.g. "ss -ta") in the future. The purpose of a BPF_MAP_TYPE_SK_STORAGE map is not for lookup/update/delete a "sk-local-storage" data from a particular sk. Think of the map as a meta-data (or "type") of a "sk-local-storage". This particular "type" of "sk-local-storage" data can then be stored in any sk. The main purposes of this map are mostly: 1. Define the size of a "sk-local-storage" type. 2. Provide a similar syscall userspace API as the map (e.g. lookup/update, map-id, map-btf...etc.) 3. Keep track of all sk's storages of this "type" and clean them up when the map is freed. sk->sk_bpf_storage: ------------------ The main lookup/update/delete is done on sk->sk_bpf_storage (which is a "struct bpf_sk_storage"). When doing a lookup, the "map" pointer is now used as the "key" to search on the sk_storage->list. The "map" pointer is actually serving as the "type" of the "sk-local-storage" that is being requested. To allow very fast lookup, it should be as fast as looking up an array at a stable-offset. At the same time, it is not ideal to set a hard limit on the number of sk-local-storage "type" that the system can have. Hence, this patch takes a cache approach. The last search result from sk_storage->list is cached in sk_storage->cache[] which is a stable sized array. Each "sk-local-storage" type has a stable offset to the cache[] array. In the future, a map's flag could be introduced to do cache opt-out/enforcement if it became necessary. The cache size is 16 (i.e. 16 types of "sk-local-storage"). Programs can share map. On the program side, having a few bpf_progs running in the networking hotpath is already a lot. The bpf_prog should have already consolidated the existing sock-key-ed map usage to minimize the map lookup penalty. 16 has enough runway to grow. All sk-local-storage data will be removed from sk->sk_bpf_storage during sk destruction. bpf_sk_storage_get() and bpf_sk_storage_delete(): ------------------------------------------------ Instead of using bpf_map_(lookup|update|delete)_elem(), the bpf prog needs to use the new helper bpf_sk_storage_get() and bpf_sk_storage_delete(). The verifier can then enforce the ARG_PTR_TO_SOCKET argument. The bpf_sk_storage_get() also allows to "create" new elem if one does not exist in the sk. It is done by the new BPF_SK_STORAGE_GET_F_CREATE flag. An optional value can also be provided as the initial value during BPF_SK_STORAGE_GET_F_CREATE. The BPF_MAP_TYPE_SK_STORAGE also supports bpf_spin_lock. Together, it has eliminated the potential use cases for an equivalent bpf_map_update_elem() API (for bpf_prog) in this patch. Misc notes: ---------- 1. map_get_next_key is not supported. From the userspace syscall perspective, the map has the socket fd as the key while the map can be shared by pinned-file or map-id. Since btf is enforced, the existing "ss" could be enhanced to pretty print the local-storage. Supporting a kernel defined btf with 4 tuples as the return key could be explored later also. 2. The sk->sk_lock cannot be acquired. Atomic operations is used instead. e.g. cmpxchg is done on the sk->sk_bpf_storage ptr. Please refer to the source code comments for the details in synchronization cases and considerations. 3. The mem is charged to the sk->sk_omem_alloc as the sk filter does. Benchmark: --------- Here is the benchmark data collected by turning on the "kernel.bpf_stats_enabled" sysctl. Two bpf progs are tested: One bpf prog with the usual bpf hashmap (max_entries = 8192) with the sk ptr as the key. (verifier is modified to support sk ptr as the key That should have shortened the key lookup time.) Another bpf prog is with the new BPF_MAP_TYPE_SK_STORAGE. Both are storing a "u32 cnt", do a lookup on "egress_skb/cgroup" for each egress skb and then bump the cnt. netperf is used to drive data with 4096 connected UDP sockets. BPF_MAP_TYPE_HASH with a modifier verifier (152ns per bpf run) 27: cgroup_skb name egress_sk_map tag 74f56e832918070b run_time_ns 58280107540 run_cnt 381347633 loaded_at 2019-04-15T13:46:39-0700 uid 0 xlated 344B jited 258B memlock 4096B map_ids 16 btf_id 5 BPF_MAP_TYPE_SK_STORAGE in this patch (66ns per bpf run) 30: cgroup_skb name egress_sk_stora tag d4aa70984cc7bbf6 run_time_ns 25617093319 run_cnt 390989739 loaded_at 2019-04-15T13:47:54-0700 uid 0 xlated 168B jited 156B memlock 4096B map_ids 17 btf_id 6 Here is a high-level picture on how are the objects organized: sk ┌──────┐ │ │ │ │ │ │ │*sk_bpf_storage─────▶ bpf_sk_storage └──────┘ ┌───────┐ ┌───────────┤ list │ │ │ │ │ │ │ │ │ │ │ └───────┘ │ │ elem │ ┌────────┐ ├─▶│ snode │ │ ├────────┤ │ │ data │ bpf_map │ ├────────┤ ┌─────────┐ │ │map_node│◀─┬─────┤ list │ │ └────────┘ │ │ │ │ │ │ │ │ elem │ │ │ │ ┌────────┐ │ └─────────┘ └─▶│ snode │ │ ├────────┤ │ bpf_map │ data │ │ ┌─────────┐ ├────────┤ │ │ list ├───────▶│map_node│ │ │ │ └────────┘ │ │ │ │ │ │ elem │ └─────────┘ ┌────────┐ │ ┌─▶│ snode │ │ │ ├────────┤ │ │ │ data │ │ │ ├────────┤ │ │ │map_node│◀─┘ │ └────────┘ │ │ │ ┌───────┐ sk └──────────│ list │ ┌──────┐ │ │ │ │ │ │ │ │ │ │ │ │ └───────┘ │*sk_bpf_storage───────▶bpf_sk_storage └──────┘ Signed-off-by: Martin KaFai Lau Signed-off-by: Alexei Starovoitov --- include/linux/bpf.h | 2 ++ include/linux/bpf_types.h | 1 + 2 files changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index cd6341eabd74..9a21848fdb07 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -184,6 +184,7 @@ enum bpf_arg_type { ARG_PTR_TO_MAP_KEY, /* pointer to stack used as map key */ ARG_PTR_TO_MAP_VALUE, /* pointer to stack used as map value */ ARG_PTR_TO_UNINIT_MAP_VALUE, /* pointer to valid memory used to store a map value */ + ARG_PTR_TO_MAP_VALUE_OR_NULL, /* pointer to stack used as map value or NULL */ /* the following constraints used to prototype bpf_memcmp() and other * functions that access data on eBPF program stack @@ -204,6 +205,7 @@ enum bpf_arg_type { ARG_PTR_TO_SOCK_COMMON, /* pointer to sock_common */ ARG_PTR_TO_INT, /* pointer to int */ ARG_PTR_TO_LONG, /* pointer to long */ + ARG_PTR_TO_SOCKET, /* pointer to bpf_sock (fullsock) */ }; /* type of values returned from helper functions */ diff --git a/include/linux/bpf_types.h b/include/linux/bpf_types.h index a10d37bce364..5a9975678d6f 100644 --- a/include/linux/bpf_types.h +++ b/include/linux/bpf_types.h @@ -61,6 +61,7 @@ BPF_MAP_TYPE(BPF_MAP_TYPE_ARRAY_OF_MAPS, array_of_maps_map_ops) BPF_MAP_TYPE(BPF_MAP_TYPE_HASH_OF_MAPS, htab_of_maps_map_ops) #ifdef CONFIG_NET BPF_MAP_TYPE(BPF_MAP_TYPE_DEVMAP, dev_map_ops) +BPF_MAP_TYPE(BPF_MAP_TYPE_SK_STORAGE, sk_storage_map_ops) #if defined(CONFIG_BPF_STREAM_PARSER) BPF_MAP_TYPE(BPF_MAP_TYPE_SOCKMAP, sock_map_ops) BPF_MAP_TYPE(BPF_MAP_TYPE_SOCKHASH, sock_hash_ops) -- cgit v1.2.3 From da68b4ad02343862fee1e3e8c6315984f16a4778 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Thu, 25 Apr 2019 12:32:03 -0700 Subject: net/tls: move definition of tls ops into net/tls.h There seems to be no reason for tls_ops to be defined in netdevice.h which is included in a lot of places. Don't wrap the struct/enum declaration in ifdefs, it trickles down unnecessary ifdefs into driver code. Signed-off-by: Jakub Kicinski Reviewed-by: Simon Horman Signed-off-by: David S. Miller --- include/linux/netdevice.h | 23 +---------------------- 1 file changed, 1 insertion(+), 22 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index c46d218a0456..44b47e9df94a 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -914,34 +914,13 @@ struct xfrmdev_ops { }; #endif -#if IS_ENABLED(CONFIG_TLS_DEVICE) -enum tls_offload_ctx_dir { - TLS_OFFLOAD_CTX_DIR_RX, - TLS_OFFLOAD_CTX_DIR_TX, -}; - -struct tls_crypto_info; -struct tls_context; - -struct tlsdev_ops { - int (*tls_dev_add)(struct net_device *netdev, struct sock *sk, - enum tls_offload_ctx_dir direction, - struct tls_crypto_info *crypto_info, - u32 start_offload_tcp_sn); - void (*tls_dev_del)(struct net_device *netdev, - struct tls_context *ctx, - enum tls_offload_ctx_dir direction); - void (*tls_dev_resync_rx)(struct net_device *netdev, - struct sock *sk, u32 seq, u64 rcd_sn); -}; -#endif - struct dev_ifalias { struct rcu_head rcuhead; char ifalias[]; }; struct devlink; +struct tlsdev_ops; /* * This structure defines the management hooks for network devices. -- cgit v1.2.3 From ae0be8de9a53cda3505865c11826d8ff0640237c Mon Sep 17 00:00:00 2001 From: Michal Kubecek Date: Fri, 26 Apr 2019 11:13:06 +0200 Subject: netlink: make nla_nest_start() add NLA_F_NESTED flag Even if the NLA_F_NESTED flag was introduced more than 11 years ago, most netlink based interfaces (including recently added ones) are still not setting it in kernel generated messages. Without the flag, message parsers not aware of attribute semantics (e.g. wireshark dissector or libmnl's mnl_nlmsg_fprintf()) cannot recognize nested attributes and won't display the structure of their contents. Unfortunately we cannot just add the flag everywhere as there may be userspace applications which check nlattr::nla_type directly rather than through a helper masking out the flags. Therefore the patch renames nla_nest_start() to nla_nest_start_noflag() and introduces nla_nest_start() as a wrapper adding NLA_F_NESTED. The calls which add NLA_F_NESTED manually are rewritten to use nla_nest_start(). Except for changes in include/net/netlink.h, the patch was generated using this semantic patch: @@ expression E1, E2; @@ -nla_nest_start(E1, E2) +nla_nest_start_noflag(E1, E2) @@ expression E1, E2; @@ -nla_nest_start_noflag(E1, E2 | NLA_F_NESTED) +nla_nest_start(E1, E2) Signed-off-by: Michal Kubecek Acked-by: Jiri Pirko Acked-by: David Ahern Signed-off-by: David S. Miller --- include/linux/netfilter/ipset/ip_set.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h index f2e1e6b13ca4..965dc6c6653e 100644 --- a/include/linux/netfilter/ipset/ip_set.h +++ b/include/linux/netfilter/ipset/ip_set.h @@ -401,7 +401,7 @@ ip_set_get_h16(const struct nlattr *attr) return ntohs(nla_get_be16(attr)); } -#define ipset_nest_start(skb, attr) nla_nest_start(skb, attr | NLA_F_NESTED) +#define ipset_nest_start(skb, attr) nla_nest_start(skb, attr) #define ipset_nest_end(skb, start) nla_nest_end(skb, start) static inline int nla_put_ipaddr4(struct sk_buff *skb, int type, __be32 ipaddr) -- cgit v1.2.3 From 12ad5f65f030ae7b8a2425f6f79137c4217e30d4 Mon Sep 17 00:00:00 2001 From: Michal Kubecek Date: Fri, 26 Apr 2019 11:13:09 +0200 Subject: ipset: drop ipset_nest_start() and ipset_nest_end() After the previous commit, both ipset_nest_start() and ipset_nest_end() are just aliases for nla_nest_start() and nla_nest_end() so that there is no need to keep them. Signed-off-by: Michal Kubecek Acked-by: Jozsef Kadlecsik Signed-off-by: David S. Miller --- include/linux/netfilter/ipset/ip_set.h | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h index 965dc6c6653e..e499d170f12d 100644 --- a/include/linux/netfilter/ipset/ip_set.h +++ b/include/linux/netfilter/ipset/ip_set.h @@ -401,33 +401,30 @@ ip_set_get_h16(const struct nlattr *attr) return ntohs(nla_get_be16(attr)); } -#define ipset_nest_start(skb, attr) nla_nest_start(skb, attr) -#define ipset_nest_end(skb, start) nla_nest_end(skb, start) - static inline int nla_put_ipaddr4(struct sk_buff *skb, int type, __be32 ipaddr) { - struct nlattr *__nested = ipset_nest_start(skb, type); + struct nlattr *__nested = nla_nest_start(skb, type); int ret; if (!__nested) return -EMSGSIZE; ret = nla_put_in_addr(skb, IPSET_ATTR_IPADDR_IPV4, ipaddr); if (!ret) - ipset_nest_end(skb, __nested); + nla_nest_end(skb, __nested); return ret; } static inline int nla_put_ipaddr6(struct sk_buff *skb, int type, const struct in6_addr *ipaddrptr) { - struct nlattr *__nested = ipset_nest_start(skb, type); + struct nlattr *__nested = nla_nest_start(skb, type); int ret; if (!__nested) return -EMSGSIZE; ret = nla_put_in6_addr(skb, IPSET_ATTR_IPADDR_IPV6, ipaddrptr); if (!ret) - ipset_nest_end(skb, __nested); + nla_nest_end(skb, __nested); return ret; } -- cgit v1.2.3 From 1b8c813695dcff87b58ad1916bff2299dcf01c7f Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 15 Apr 2019 22:17:09 +0200 Subject: ARM: ep93xx: move network platform data to separate header The header file is the only thing preventing us from building the driver in a cross-platform configuration, so move the structure we are interested in to the global platform_data location and enable compile testing. Acked-by: Alexander Sverdlin Acked-by: H Hartley Sweeten Signed-off-by: Arnd Bergmann Signed-off-by: Olof Johansson --- include/linux/platform_data/eth-ep93xx.h | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 include/linux/platform_data/eth-ep93xx.h (limited to 'include/linux') diff --git a/include/linux/platform_data/eth-ep93xx.h b/include/linux/platform_data/eth-ep93xx.h new file mode 100644 index 000000000000..8eef637a804d --- /dev/null +++ b/include/linux/platform_data/eth-ep93xx.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_PLATFORM_DATA_ETH_EP93XX +#define _LINUX_PLATFORM_DATA_ETH_EP93XX + +struct ep93xx_eth_data { + unsigned char dev_addr[6]; + unsigned char phy_id; +}; + +#endif -- cgit v1.2.3 From dfb6db007a56998e53e5ba5fb798b2e830b7feca Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 15 Apr 2019 22:17:10 +0200 Subject: ARM: ep93xx: keypad: stop using mach/platform.h We can communicate the clock rate using platform data rather than setting a flag to use a particular value in the driver, which is cleaner and avoids the dependency. No platform in the kernel currently defines the ep93xx keypad device structure, so this is a rather pointless excercise. Any out of tree users are probably dead now, but if not, they have to change their platform code to match the new platform_data structure. Acked-by: H Hartley Sweeten Signed-off-by: Arnd Bergmann Signed-off-by: Olof Johansson --- include/linux/platform_data/keypad-ep93xx.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/keypad-ep93xx.h b/include/linux/platform_data/keypad-ep93xx.h index 0e36818e3680..3054fced8509 100644 --- a/include/linux/platform_data/keypad-ep93xx.h +++ b/include/linux/platform_data/keypad-ep93xx.h @@ -9,8 +9,7 @@ struct matrix_keymap_data; #define EP93XX_KEYPAD_DIAG_MODE (1<<1) /* diagnostic mode */ #define EP93XX_KEYPAD_BACK_DRIVE (1<<2) /* back driving mode */ #define EP93XX_KEYPAD_TEST_MODE (1<<3) /* scan only column 0 */ -#define EP93XX_KEYPAD_KDIV (1<<4) /* 1/4 clock or 1/16 clock */ -#define EP93XX_KEYPAD_AUTOREPEAT (1<<5) /* enable key autorepeat */ +#define EP93XX_KEYPAD_AUTOREPEAT (1<<4) /* enable key autorepeat */ /** * struct ep93xx_keypad_platform_data - platform specific device structure @@ -24,6 +23,7 @@ struct ep93xx_keypad_platform_data { unsigned int debounce; unsigned int prescale; unsigned int flags; + unsigned int clk_rate; }; #define EP93XX_MATRIX_ROWS (8) -- cgit v1.2.3 From 67e38f578aaebf34fc1278bbe45a78ee8c73dd33 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 15 Apr 2019 22:17:11 +0200 Subject: ARM: ep93xx: move pinctrl interfaces into include/linux/soc ep93xx does not have a proper pinctrl driver, but does things ad-hoc through mach/platform.h, which is also used for setting up the boards. To avoid using mach/*.h headers completely, let's move the interfaces into include/linux/soc/. This is far from great, but gets the job done here, without the need for a proper pinctrl driver. Acked-by: Alexander Sverdlin Acked-by: H Hartley Sweeten Signed-off-by: Arnd Bergmann Signed-off-by: Olof Johansson --- include/linux/soc/cirrus/ep93xx.h | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 include/linux/soc/cirrus/ep93xx.h (limited to 'include/linux') diff --git a/include/linux/soc/cirrus/ep93xx.h b/include/linux/soc/cirrus/ep93xx.h new file mode 100644 index 000000000000..56fbe2dc59b1 --- /dev/null +++ b/include/linux/soc/cirrus/ep93xx.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _SOC_EP93XX_H +#define _SOC_EP93XX_H + +struct platform_device; + +#define EP93XX_CHIP_REV_D0 3 +#define EP93XX_CHIP_REV_D1 4 +#define EP93XX_CHIP_REV_E0 5 +#define EP93XX_CHIP_REV_E1 6 +#define EP93XX_CHIP_REV_E2 7 + +#ifdef CONFIG_ARCH_EP93XX +int ep93xx_pwm_acquire_gpio(struct platform_device *pdev); +void ep93xx_pwm_release_gpio(struct platform_device *pdev); +int ep93xx_ide_acquire_gpio(struct platform_device *pdev); +void ep93xx_ide_release_gpio(struct platform_device *pdev); +int ep93xx_keypad_acquire_gpio(struct platform_device *pdev); +void ep93xx_keypad_release_gpio(struct platform_device *pdev); +int ep93xx_i2s_acquire(void); +void ep93xx_i2s_release(void); +unsigned int ep93xx_chip_revision(void); + +#else +static inline int ep93xx_pwm_acquire_gpio(struct platform_device *pdev) { return 0; } +static inline void ep93xx_pwm_release_gpio(struct platform_device *pdev) {} +static inline int ep93xx_ide_acquire_gpio(struct platform_device *pdev) { return 0; } +static inline void ep93xx_ide_release_gpio(struct platform_device *pdev) {} +static inline int ep93xx_keypad_acquire_gpio(struct platform_device *pdev) { return 0; } +static inline void ep93xx_keypad_release_gpio(struct platform_device *pdev) {} +static inline int ep93xx_i2s_acquire(void) { return 0; } +static inline void ep93xx_i2s_release(void) {} +static inline unsigned int ep93xx_chip_revision(void) { return 0; } + +#endif + +#endif -- cgit v1.2.3 From d15d356887e770c5f2dcf963b52c7cb510c9e42d Mon Sep 17 00:00:00 2001 From: Kairui Song Date: Tue, 23 Apr 2019 00:26:52 +0800 Subject: perf/x86: Make perf callchains work without CONFIG_FRAME_POINTER Currently perf callchain doesn't work well with ORC unwinder when sampling from trace point. We'll get useless in kernel callchain like this: perf 6429 [000] 22.498450: kmem:mm_page_alloc: page=0x176a17 pfn=1534487 order=0 migratetype=0 gfp_flags=GFP_KERNEL ffffffffbe23e32e __alloc_pages_nodemask+0x22e (/lib/modules/5.1.0-rc3+/build/vmlinux) 7efdf7f7d3e8 __poll+0x18 (/usr/lib64/libc-2.28.so) 5651468729c1 [unknown] (/usr/bin/perf) 5651467ee82a main+0x69a (/usr/bin/perf) 7efdf7eaf413 __libc_start_main+0xf3 (/usr/lib64/libc-2.28.so) 5541f689495641d7 [unknown] ([unknown]) The root cause is that, for trace point events, it doesn't provide a real snapshot of the hardware registers. Instead perf tries to get required caller's registers and compose a fake register snapshot which suppose to contain enough information for start a unwinding. However without CONFIG_FRAME_POINTER, if failed to get caller's BP as the frame pointer, so current frame pointer is returned instead. We get a invalid register combination which confuse the unwinder, and end the stacktrace early. So in such case just don't try dump BP, and let the unwinder start directly when the register is not a real snapshot. Use SP as the skip mark, unwinder will skip all the frames until it meet the frame of the trace point caller. Tested with frame pointer unwinder and ORC unwinder, this makes perf callchain get the full kernel space stacktrace again like this: perf 6503 [000] 1567.570191: kmem:mm_page_alloc: page=0x16c904 pfn=1493252 order=0 migratetype=0 gfp_flags=GFP_KERNEL ffffffffb523e2ae __alloc_pages_nodemask+0x22e (/lib/modules/5.1.0-rc3+/build/vmlinux) ffffffffb52383bd __get_free_pages+0xd (/lib/modules/5.1.0-rc3+/build/vmlinux) ffffffffb52fd28a __pollwait+0x8a (/lib/modules/5.1.0-rc3+/build/vmlinux) ffffffffb521426f perf_poll+0x2f (/lib/modules/5.1.0-rc3+/build/vmlinux) ffffffffb52fe3e2 do_sys_poll+0x252 (/lib/modules/5.1.0-rc3+/build/vmlinux) ffffffffb52ff027 __x64_sys_poll+0x37 (/lib/modules/5.1.0-rc3+/build/vmlinux) ffffffffb500418b do_syscall_64+0x5b (/lib/modules/5.1.0-rc3+/build/vmlinux) ffffffffb5a0008c entry_SYSCALL_64_after_hwframe+0x44 (/lib/modules/5.1.0-rc3+/build/vmlinux) 7f71e92d03e8 __poll+0x18 (/usr/lib64/libc-2.28.so) 55a22960d9c1 [unknown] (/usr/bin/perf) 55a22958982a main+0x69a (/usr/bin/perf) 7f71e9202413 __libc_start_main+0xf3 (/usr/lib64/libc-2.28.so) 5541f689495641d7 [unknown] ([unknown]) Co-developed-by: Josh Poimboeuf Signed-off-by: Kairui Song Signed-off-by: Peter Zijlstra (Intel) Cc: Alexander Shishkin Cc: Alexei Starovoitov Cc: Arnaldo Carvalho de Melo Cc: Borislav Petkov Cc: Dave Young Cc: Jiri Olsa Cc: Linus Torvalds Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Thomas Gleixner Link: https://lkml.kernel.org/r/20190422162652.15483-1-kasong@redhat.com Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index f3864e1c5569..cf023db0e8a2 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1058,12 +1058,18 @@ static inline void perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned lo #endif /* - * Take a snapshot of the regs. Skip ip and frame pointer to - * the nth caller. We only need a few of the regs: + * When generating a perf sample in-line, instead of from an interrupt / + * exception, we lack a pt_regs. This is typically used from software events + * like: SW_CONTEXT_SWITCHES, SW_MIGRATIONS and the tie-in with tracepoints. + * + * We typically don't need a full set, but (for x86) do require: * - ip for PERF_SAMPLE_IP * - cs for user_mode() tests - * - bp for callchains - * - eflags, for future purposes, just in case + * - sp for PERF_SAMPLE_CALLCHAIN + * - eflags for MISC bits and CALLCHAIN (see: perf_hw_regs()) + * + * NOTE: assumes @regs is otherwise already 0 filled; this is important for + * things like PERF_SAMPLE_REGS_INTR. */ static inline void perf_fetch_caller_regs(struct pt_regs *regs) { -- cgit v1.2.3 From ad282a8117d5048398f506f20b092c14b3b3c43f Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Fri, 29 Mar 2019 17:08:52 -0700 Subject: locking/static_key: Add support for deferred static branches Add deferred static branches. We can't unfortunately use the nice trick of encapsulating the entire structure in true/false variants, because the inside has to be either struct static_key_true or struct static_key_false. Use defines to pass the appropriate members to the helpers separately. Signed-off-by: Jakub Kicinski Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Simon Horman Cc: Andrew Morton Cc: Linus Torvalds Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Will Deacon Cc: alexei.starovoitov@gmail.com Cc: ard.biesheuvel@linaro.org Cc: oss-drivers@netronome.com Cc: yamada.masahiro@socionext.com Link: https://lkml.kernel.org/r/20190330000854.30142-2-jakub.kicinski@netronome.com Signed-off-by: Ingo Molnar --- include/linux/jump_label_ratelimit.h | 64 ++++++++++++++++++++++++++++++++++-- 1 file changed, 61 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/jump_label_ratelimit.h b/include/linux/jump_label_ratelimit.h index a49f2b45b3f0..42710d5949ba 100644 --- a/include/linux/jump_label_ratelimit.h +++ b/include/linux/jump_label_ratelimit.h @@ -12,21 +12,79 @@ struct static_key_deferred { struct delayed_work work; }; -extern void static_key_slow_dec_deferred(struct static_key_deferred *key); -extern void static_key_deferred_flush(struct static_key_deferred *key); +struct static_key_true_deferred { + struct static_key_true key; + unsigned long timeout; + struct delayed_work work; +}; + +struct static_key_false_deferred { + struct static_key_false key; + unsigned long timeout; + struct delayed_work work; +}; + +#define static_key_slow_dec_deferred(x) \ + __static_key_slow_dec_deferred(&(x)->key, &(x)->work, (x)->timeout) +#define static_branch_slow_dec_deferred(x) \ + __static_key_slow_dec_deferred(&(x)->key.key, &(x)->work, (x)->timeout) + +#define static_key_deferred_flush(x) \ + __static_key_deferred_flush((x), &(x)->work) + +extern void +__static_key_slow_dec_deferred(struct static_key *key, + struct delayed_work *work, + unsigned long timeout); +extern void __static_key_deferred_flush(void *key, struct delayed_work *work); extern void jump_label_rate_limit(struct static_key_deferred *key, unsigned long rl); +extern void jump_label_update_timeout(struct work_struct *work); + +#define DEFINE_STATIC_KEY_DEFERRED_TRUE(name, rl) \ + struct static_key_true_deferred name = { \ + .key = { STATIC_KEY_INIT_TRUE }, \ + .timeout = (rl), \ + .work = __DELAYED_WORK_INITIALIZER((name).work, \ + jump_label_update_timeout, \ + 0), \ + } + +#define DEFINE_STATIC_KEY_DEFERRED_FALSE(name, rl) \ + struct static_key_false_deferred name = { \ + .key = { STATIC_KEY_INIT_FALSE }, \ + .timeout = (rl), \ + .work = __DELAYED_WORK_INITIALIZER((name).work, \ + jump_label_update_timeout, \ + 0), \ + } + +#define static_branch_deferred_inc(x) static_branch_inc(&(x)->key) + #else /* !CONFIG_JUMP_LABEL */ struct static_key_deferred { struct static_key key; }; +struct static_key_true_deferred { + struct static_key_true key; +}; +struct static_key_false_deferred { + struct static_key_false key; +}; +#define DEFINE_STATIC_KEY_DEFERRED_TRUE(name, rl) \ + struct static_key_true_deferred name = { STATIC_KEY_TRUE_INIT } +#define DEFINE_STATIC_KEY_DEFERRED_FALSE(name, rl) \ + struct static_key_false_deferred name = { STATIC_KEY_FALSE_INIT } + +#define static_branch_slow_dec_deferred(x) static_branch_dec(&(x)->key) + static inline void static_key_slow_dec_deferred(struct static_key_deferred *key) { STATIC_KEY_CHECK_USE(key); static_key_slow_dec(&key->key); } -static inline void static_key_deferred_flush(struct static_key_deferred *key) +static inline void static_key_deferred_flush(void *key) { STATIC_KEY_CHECK_USE(key); } -- cgit v1.2.3 From 268a78404973594d1a7ec3a2b6a2474e0543a435 Mon Sep 17 00:00:00 2001 From: Philipp Rudo Date: Tue, 26 Mar 2019 15:45:53 +0100 Subject: s390/kexec_file: Disable kexec_load when IPLed secure A kernel loaded via kexec_load cannot be verified. Thus disable kexec_load systemcall in kernels which where IPLed securely. Use the IMA mechanism to do so. Signed-off-by: Philipp Rudo Signed-off-by: Martin Schwidefsky --- include/linux/ima.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/ima.h b/include/linux/ima.h index dc12fbcf484c..fd9f7cf4cdf5 100644 --- a/include/linux/ima.h +++ b/include/linux/ima.h @@ -31,7 +31,7 @@ extern void ima_post_path_mknod(struct dentry *dentry); extern void ima_add_kexec_buffer(struct kimage *image); #endif -#if defined(CONFIG_X86) && defined(CONFIG_EFI) +#if (defined(CONFIG_X86) && defined(CONFIG_EFI)) || defined(CONFIG_S390) extern bool arch_ima_get_secureboot(void); extern const char * const *arch_get_ima_policy(void); #else -- cgit v1.2.3 From 3d9a8072915366b5932beeed97f158f8d4955768 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 25 Apr 2019 11:44:54 +0200 Subject: tracing: Cleanup stack trace code - Remove the extra array member of stack_dump_trace[] along with the ARRAY_SIZE - 1 initialization for struct stack_trace :: max_entries. Both are historical leftovers of no value. The stack tracer never exceeds the array and there is no extra storage requirement either. - Make variables which are only used in trace_stack.c static. - Simplify the enable/disable logic. - Rename stack_trace_print() as it's using the stack_trace_ namespace. Free the name up for stack trace related functions. Signed-off-by: Thomas Gleixner Reviewed-by: Steven Rostedt Reviewed-by: Josh Poimboeuf Cc: Andy Lutomirski Cc: Alexander Potapenko Cc: Alexey Dobriyan Cc: Andrew Morton Cc: Christoph Lameter Cc: Pekka Enberg Cc: linux-mm@kvack.org Cc: David Rientjes Cc: Catalin Marinas Cc: Dmitry Vyukov Cc: Andrey Ryabinin Cc: kasan-dev@googlegroups.com Cc: Mike Rapoport Cc: Akinobu Mita Cc: Christoph Hellwig Cc: iommu@lists.linux-foundation.org Cc: Robin Murphy Cc: Marek Szyprowski Cc: Johannes Thumshirn Cc: David Sterba Cc: Chris Mason Cc: Josef Bacik Cc: linux-btrfs@vger.kernel.org Cc: dm-devel@redhat.com Cc: Mike Snitzer Cc: Alasdair Kergon Cc: Daniel Vetter Cc: intel-gfx@lists.freedesktop.org Cc: Joonas Lahtinen Cc: Maarten Lankhorst Cc: dri-devel@lists.freedesktop.org Cc: David Airlie Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Tom Zanussi Cc: Miroslav Benes Cc: linux-arch@vger.kernel.org Link: https://lkml.kernel.org/r/20190425094801.230654524@linutronix.de --- include/linux/ftrace.h | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 730876187344..20899919ead8 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -241,21 +241,11 @@ static inline void ftrace_free_mem(struct module *mod, void *start, void *end) { #ifdef CONFIG_STACK_TRACER -#define STACK_TRACE_ENTRIES 500 - -struct stack_trace; - -extern unsigned stack_trace_index[]; -extern struct stack_trace stack_trace_max; -extern unsigned long stack_trace_max_size; -extern arch_spinlock_t stack_trace_max_lock; - extern int stack_tracer_enabled; -void stack_trace_print(void); -int -stack_trace_sysctl(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos); + +int stack_trace_sysctl(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, + loff_t *ppos); /* DO NOT MODIFY THIS VARIABLE DIRECTLY! */ DECLARE_PER_CPU(int, disable_stack_tracer); -- cgit v1.2.3 From e9b98e162aa53cbea7c8b0d6c9d5dc6e0f822b9c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 25 Apr 2019 11:44:55 +0200 Subject: stacktrace: Provide helpers for common stack trace operations All operations with stack traces are based on struct stack_trace. That's a horrible construct as the struct is a kitchen sink for input and output. Quite some usage sites embed it into their own data structures which creates weird indirections. There is absolutely no point in doing so. For all use cases a storage array and the number of valid stack trace entries in the array is sufficient. Provide helper functions which avoid the struct stack_trace indirection so the usage sites can be cleaned up. Signed-off-by: Thomas Gleixner Reviewed-by: Josh Poimboeuf Cc: Andy Lutomirski Cc: Steven Rostedt Cc: Alexander Potapenko Cc: Alexey Dobriyan Cc: Andrew Morton Cc: Christoph Lameter Cc: Pekka Enberg Cc: linux-mm@kvack.org Cc: David Rientjes Cc: Catalin Marinas Cc: Dmitry Vyukov Cc: Andrey Ryabinin Cc: kasan-dev@googlegroups.com Cc: Mike Rapoport Cc: Akinobu Mita Cc: Christoph Hellwig Cc: iommu@lists.linux-foundation.org Cc: Robin Murphy Cc: Marek Szyprowski Cc: Johannes Thumshirn Cc: David Sterba Cc: Chris Mason Cc: Josef Bacik Cc: linux-btrfs@vger.kernel.org Cc: dm-devel@redhat.com Cc: Mike Snitzer Cc: Alasdair Kergon Cc: Daniel Vetter Cc: intel-gfx@lists.freedesktop.org Cc: Joonas Lahtinen Cc: Maarten Lankhorst Cc: dri-devel@lists.freedesktop.org Cc: David Airlie Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Tom Zanussi Cc: Miroslav Benes Cc: linux-arch@vger.kernel.org Link: https://lkml.kernel.org/r/20190425094801.324810708@linutronix.de --- include/linux/stacktrace.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'include/linux') diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h index ba29a0613e66..a24340b3e9e1 100644 --- a/include/linux/stacktrace.h +++ b/include/linux/stacktrace.h @@ -3,11 +3,26 @@ #define __LINUX_STACKTRACE_H #include +#include struct task_struct; struct pt_regs; #ifdef CONFIG_STACKTRACE +void stack_trace_print(unsigned long *trace, unsigned int nr_entries, + int spaces); +int stack_trace_snprint(char *buf, size_t size, unsigned long *entries, + unsigned int nr_entries, int spaces); +unsigned int stack_trace_save(unsigned long *store, unsigned int size, + unsigned int skipnr); +unsigned int stack_trace_save_tsk(struct task_struct *task, + unsigned long *store, unsigned int size, + unsigned int skipnr); +unsigned int stack_trace_save_regs(struct pt_regs *regs, unsigned long *store, + unsigned int size, unsigned int skipnr); +unsigned int stack_trace_save_user(unsigned long *store, unsigned int size); + +/* Internal interfaces. Do not use in generic code */ struct stack_trace { unsigned int nr_entries, max_entries; unsigned long *entries; @@ -41,4 +56,16 @@ extern void save_stack_trace_user(struct stack_trace *trace); # define save_stack_trace_tsk_reliable(tsk, trace) ({ -ENOSYS; }) #endif /* CONFIG_STACKTRACE */ +#if defined(CONFIG_STACKTRACE) && defined(CONFIG_HAVE_RELIABLE_STACKTRACE) +int stack_trace_save_tsk_reliable(struct task_struct *tsk, unsigned long *store, + unsigned int size); +#else +static inline int stack_trace_save_tsk_reliable(struct task_struct *tsk, + unsigned long *store, + unsigned int size) +{ + return -ENOSYS; +} +#endif + #endif /* __LINUX_STACKTRACE_H */ -- cgit v1.2.3 From c0cfc337264c5e02e0bc79de6b62857999588879 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 25 Apr 2019 11:44:56 +0200 Subject: lib/stackdepot: Provide functions which operate on plain storage arrays The struct stack_trace indirection in the stack depot functions is a truly pointless excercise which requires horrible code at the callsites. Provide interfaces based on plain storage arrays. Signed-off-by: Thomas Gleixner Reviewed-by: Josh Poimboeuf Acked-by: Alexander Potapenko Cc: Andy Lutomirski Cc: Steven Rostedt Cc: Alexey Dobriyan Cc: Andrew Morton Cc: Christoph Lameter Cc: Pekka Enberg Cc: linux-mm@kvack.org Cc: David Rientjes Cc: Catalin Marinas Cc: Dmitry Vyukov Cc: Andrey Ryabinin Cc: kasan-dev@googlegroups.com Cc: Mike Rapoport Cc: Akinobu Mita Cc: Christoph Hellwig Cc: iommu@lists.linux-foundation.org Cc: Robin Murphy Cc: Marek Szyprowski Cc: Johannes Thumshirn Cc: David Sterba Cc: Chris Mason Cc: Josef Bacik Cc: linux-btrfs@vger.kernel.org Cc: dm-devel@redhat.com Cc: Mike Snitzer Cc: Alasdair Kergon Cc: Daniel Vetter Cc: intel-gfx@lists.freedesktop.org Cc: Joonas Lahtinen Cc: Maarten Lankhorst Cc: dri-devel@lists.freedesktop.org Cc: David Airlie Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Tom Zanussi Cc: Miroslav Benes Cc: linux-arch@vger.kernel.org Link: https://lkml.kernel.org/r/20190425094801.414574828@linutronix.de --- include/linux/stackdepot.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/stackdepot.h b/include/linux/stackdepot.h index 7978b3e2c1e1..4297c6d2991d 100644 --- a/include/linux/stackdepot.h +++ b/include/linux/stackdepot.h @@ -26,7 +26,11 @@ typedef u32 depot_stack_handle_t; struct stack_trace; depot_stack_handle_t depot_save_stack(struct stack_trace *trace, gfp_t flags); +depot_stack_handle_t stack_depot_save(unsigned long *entries, + unsigned int nr_entries, gfp_t gfp_flags); void depot_fetch_stack(depot_stack_handle_t handle, struct stack_trace *trace); +unsigned int stack_depot_fetch(depot_stack_handle_t handle, + unsigned long **entries); #endif -- cgit v1.2.3 From c120bce78065cbea460a58b1572c215db9c148ba Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 25 Apr 2019 11:45:12 +0200 Subject: lockdep: Simplify stack trace handling Replace the indirection through struct stack_trace by using the storage array based interfaces and storing the information is a small lockdep specific data structure. Signed-off-by: Thomas Gleixner Reviewed-by: Josh Poimboeuf Acked-by: Peter Zijlstra (Intel) Cc: Andy Lutomirski Cc: Steven Rostedt Cc: Alexander Potapenko Cc: Alexey Dobriyan Cc: Andrew Morton Cc: Christoph Lameter Cc: Pekka Enberg Cc: linux-mm@kvack.org Cc: David Rientjes Cc: Catalin Marinas Cc: Dmitry Vyukov Cc: Andrey Ryabinin Cc: kasan-dev@googlegroups.com Cc: Mike Rapoport Cc: Akinobu Mita Cc: Christoph Hellwig Cc: iommu@lists.linux-foundation.org Cc: Robin Murphy Cc: Marek Szyprowski Cc: Johannes Thumshirn Cc: David Sterba Cc: Chris Mason Cc: Josef Bacik Cc: linux-btrfs@vger.kernel.org Cc: dm-devel@redhat.com Cc: Mike Snitzer Cc: Alasdair Kergon Cc: Daniel Vetter Cc: intel-gfx@lists.freedesktop.org Cc: Joonas Lahtinen Cc: Maarten Lankhorst Cc: dri-devel@lists.freedesktop.org Cc: David Airlie Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Tom Zanussi Cc: Miroslav Benes Cc: linux-arch@vger.kernel.org Link: https://lkml.kernel.org/r/20190425094802.891724020@linutronix.de --- include/linux/lockdep.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h index 79c3873d58ac..6f165d625320 100644 --- a/include/linux/lockdep.h +++ b/include/linux/lockdep.h @@ -66,6 +66,11 @@ struct lock_class_key { extern struct lock_class_key __lockdep_no_validate__; +struct lock_trace { + unsigned int nr_entries; + unsigned int offset; +}; + #define LOCKSTAT_POINTS 4 /* @@ -100,7 +105,7 @@ struct lock_class { * IRQ/softirq usage tracking bits: */ unsigned long usage_mask; - struct stack_trace usage_traces[XXX_LOCK_USAGE_STATES]; + struct lock_trace usage_traces[XXX_LOCK_USAGE_STATES]; /* * Generation counter, when doing certain classes of graph walking, @@ -188,7 +193,7 @@ struct lock_list { struct list_head entry; struct lock_class *class; struct lock_class *links_to; - struct stack_trace trace; + struct lock_trace trace; int distance; /* -- cgit v1.2.3 From 988ec8841ca1e22b2978fce0134d8267e838770e Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 25 Apr 2019 11:45:19 +0200 Subject: stacktrace: Remove obsolete functions No more users of the struct stack_trace based interfaces. Remove them. Remove the macro stubs for !CONFIG_STACKTRACE as well as they are pointless because the storage on the call sites is conditional on CONFIG_STACKTRACE already. No point to be 'smart'. Signed-off-by: Thomas Gleixner Reviewed-by: Josh Poimboeuf Cc: Andy Lutomirski Cc: Steven Rostedt Cc: Alexander Potapenko Cc: Alexey Dobriyan Cc: Andrew Morton Cc: Christoph Lameter Cc: Pekka Enberg Cc: linux-mm@kvack.org Cc: David Rientjes Cc: Catalin Marinas Cc: Dmitry Vyukov Cc: Andrey Ryabinin Cc: kasan-dev@googlegroups.com Cc: Mike Rapoport Cc: Akinobu Mita Cc: Christoph Hellwig Cc: iommu@lists.linux-foundation.org Cc: Robin Murphy Cc: Marek Szyprowski Cc: Johannes Thumshirn Cc: David Sterba Cc: Chris Mason Cc: Josef Bacik Cc: linux-btrfs@vger.kernel.org Cc: dm-devel@redhat.com Cc: Mike Snitzer Cc: Alasdair Kergon Cc: Daniel Vetter Cc: intel-gfx@lists.freedesktop.org Cc: Joonas Lahtinen Cc: Maarten Lankhorst Cc: dri-devel@lists.freedesktop.org Cc: David Airlie Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Tom Zanussi Cc: Miroslav Benes Cc: linux-arch@vger.kernel.org Link: https://lkml.kernel.org/r/20190425094803.524796783@linutronix.de --- include/linux/stacktrace.h | 17 ----------------- 1 file changed, 17 deletions(-) (limited to 'include/linux') diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h index a24340b3e9e1..40decfbb9a24 100644 --- a/include/linux/stacktrace.h +++ b/include/linux/stacktrace.h @@ -36,24 +36,7 @@ extern void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace); extern int save_stack_trace_tsk_reliable(struct task_struct *tsk, struct stack_trace *trace); - -extern void print_stack_trace(struct stack_trace *trace, int spaces); -extern int snprint_stack_trace(char *buf, size_t size, - struct stack_trace *trace, int spaces); - -#ifdef CONFIG_USER_STACKTRACE_SUPPORT extern void save_stack_trace_user(struct stack_trace *trace); -#else -# define save_stack_trace_user(trace) do { } while (0) -#endif - -#else /* !CONFIG_STACKTRACE */ -# define save_stack_trace(trace) do { } while (0) -# define save_stack_trace_tsk(tsk, trace) do { } while (0) -# define save_stack_trace_user(trace) do { } while (0) -# define print_stack_trace(trace, spaces) do { } while (0) -# define snprint_stack_trace(buf, size, trace, spaces) do { } while (0) -# define save_stack_trace_tsk_reliable(tsk, trace) ({ -ENOSYS; }) #endif /* CONFIG_STACKTRACE */ #if defined(CONFIG_STACKTRACE) && defined(CONFIG_HAVE_RELIABLE_STACKTRACE) -- cgit v1.2.3 From 56d8f079c51afc8b564b9fb0252d48e7b437c1e5 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 25 Apr 2019 11:45:20 +0200 Subject: lib/stackdepot: Remove obsolete functions No more users of the struct stack_trace based interfaces. Signed-off-by: Thomas Gleixner Reviewed-by: Josh Poimboeuf Acked-by: Alexander Potapenko Cc: Andy Lutomirski Cc: Steven Rostedt Cc: Alexey Dobriyan Cc: Andrew Morton Cc: Christoph Lameter Cc: Pekka Enberg Cc: linux-mm@kvack.org Cc: David Rientjes Cc: Catalin Marinas Cc: Dmitry Vyukov Cc: Andrey Ryabinin Cc: kasan-dev@googlegroups.com Cc: Mike Rapoport Cc: Akinobu Mita Cc: Christoph Hellwig Cc: iommu@lists.linux-foundation.org Cc: Robin Murphy Cc: Marek Szyprowski Cc: Johannes Thumshirn Cc: David Sterba Cc: Chris Mason Cc: Josef Bacik Cc: linux-btrfs@vger.kernel.org Cc: dm-devel@redhat.com Cc: Mike Snitzer Cc: Alasdair Kergon Cc: Daniel Vetter Cc: intel-gfx@lists.freedesktop.org Cc: Joonas Lahtinen Cc: Maarten Lankhorst Cc: dri-devel@lists.freedesktop.org Cc: David Airlie Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Tom Zanussi Cc: Miroslav Benes Cc: linux-arch@vger.kernel.org Link: https://lkml.kernel.org/r/20190425094803.617937448@linutronix.de --- include/linux/stackdepot.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/stackdepot.h b/include/linux/stackdepot.h index 4297c6d2991d..0805dee1b6b8 100644 --- a/include/linux/stackdepot.h +++ b/include/linux/stackdepot.h @@ -23,13 +23,9 @@ typedef u32 depot_stack_handle_t; -struct stack_trace; - -depot_stack_handle_t depot_save_stack(struct stack_trace *trace, gfp_t flags); depot_stack_handle_t stack_depot_save(unsigned long *entries, unsigned int nr_entries, gfp_t gfp_flags); -void depot_fetch_stack(depot_stack_handle_t handle, struct stack_trace *trace); unsigned int stack_depot_fetch(depot_stack_handle_t handle, unsigned long **entries); -- cgit v1.2.3 From 214d8ca6ee854f696f75e75511fe66b409e656db Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 25 Apr 2019 11:45:21 +0200 Subject: stacktrace: Provide common infrastructure All architectures which support stacktrace carry duplicated code and do the stack storage and filtering at the architecture side. Provide a consolidated interface with a callback function for consuming the stack entries provided by the architecture specific stack walker. This removes lots of duplicated code and allows to implement better filtering than 'skip number of entries' in the future without touching any architecture specific code. Signed-off-by: Thomas Gleixner Reviewed-by: Josh Poimboeuf Cc: Andy Lutomirski Cc: linux-arch@vger.kernel.org Cc: Steven Rostedt Cc: Alexander Potapenko Cc: Alexey Dobriyan Cc: Andrew Morton Cc: Christoph Lameter Cc: Pekka Enberg Cc: linux-mm@kvack.org Cc: David Rientjes Cc: Catalin Marinas Cc: Dmitry Vyukov Cc: Andrey Ryabinin Cc: kasan-dev@googlegroups.com Cc: Mike Rapoport Cc: Akinobu Mita Cc: Christoph Hellwig Cc: iommu@lists.linux-foundation.org Cc: Robin Murphy Cc: Marek Szyprowski Cc: Johannes Thumshirn Cc: David Sterba Cc: Chris Mason Cc: Josef Bacik Cc: linux-btrfs@vger.kernel.org Cc: dm-devel@redhat.com Cc: Mike Snitzer Cc: Alasdair Kergon Cc: Daniel Vetter Cc: intel-gfx@lists.freedesktop.org Cc: Joonas Lahtinen Cc: Maarten Lankhorst Cc: dri-devel@lists.freedesktop.org Cc: David Airlie Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Tom Zanussi Cc: Miroslav Benes Link: https://lkml.kernel.org/r/20190425094803.713568606@linutronix.de --- include/linux/stacktrace.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) (limited to 'include/linux') diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h index 40decfbb9a24..f0cfd12cb45e 100644 --- a/include/linux/stacktrace.h +++ b/include/linux/stacktrace.h @@ -23,6 +23,44 @@ unsigned int stack_trace_save_regs(struct pt_regs *regs, unsigned long *store, unsigned int stack_trace_save_user(unsigned long *store, unsigned int size); /* Internal interfaces. Do not use in generic code */ +#ifdef CONFIG_ARCH_STACKWALK + +/** + * stack_trace_consume_fn - Callback for arch_stack_walk() + * @cookie: Caller supplied pointer handed back by arch_stack_walk() + * @addr: The stack entry address to consume + * @reliable: True when the stack entry is reliable. Required by + * some printk based consumers. + * + * Return: True, if the entry was consumed or skipped + * False, if there is no space left to store + */ +typedef bool (*stack_trace_consume_fn)(void *cookie, unsigned long addr, + bool reliable); +/** + * arch_stack_walk - Architecture specific function to walk the stack + * @consume_entry: Callback which is invoked by the architecture code for + * each entry. + * @cookie: Caller supplied pointer which is handed back to + * @consume_entry + * @task: Pointer to a task struct, can be NULL + * @regs: Pointer to registers, can be NULL + * + * ============ ======= ============================================ + * task regs + * ============ ======= ============================================ + * task NULL Stack trace from task (can be current) + * current regs Stack trace starting on regs->stackpointer + * ============ ======= ============================================ + */ +void arch_stack_walk(stack_trace_consume_fn consume_entry, void *cookie, + struct task_struct *task, struct pt_regs *regs); +int arch_stack_walk_reliable(stack_trace_consume_fn consume_entry, void *cookie, + struct task_struct *task); +void arch_stack_walk_user(stack_trace_consume_fn consume_entry, void *cookie, + const struct pt_regs *regs); + +#else /* CONFIG_ARCH_STACKWALK */ struct stack_trace { unsigned int nr_entries, max_entries; unsigned long *entries; @@ -37,6 +75,7 @@ extern void save_stack_trace_tsk(struct task_struct *tsk, extern int save_stack_trace_tsk_reliable(struct task_struct *tsk, struct stack_trace *trace); extern void save_stack_trace_user(struct stack_trace *trace); +#endif /* !CONFIG_ARCH_STACKWALK */ #endif /* CONFIG_STACKTRACE */ #if defined(CONFIG_STACKTRACE) && defined(CONFIG_HAVE_RELIABLE_STACKTRACE) -- cgit v1.2.3 From 0f29456d08042134aff6e562d07a6365c841c4ad Mon Sep 17 00:00:00 2001 From: Hongbo Yao Date: Mon, 8 Apr 2019 22:01:03 +0800 Subject: irqchip/gic-v3-its: fix some definitions of inner cacheability attributes Some definitions of Inner Cacheability attibutes need to be corrected. Fixes: 8c828a535e29f ("irqchip/gicv3-its: Restore all cacheability attributes") Signed-off-by: Hongbo Yao Signed-off-by: Marc Zyngier --- include/linux/irqchip/arm-gic-v3.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h index c848a7cc502e..c7e3e39224c6 100644 --- a/include/linux/irqchip/arm-gic-v3.h +++ b/include/linux/irqchip/arm-gic-v3.h @@ -165,7 +165,7 @@ #define GICR_PROPBASER_nCnB GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nCnB) #define GICR_PROPBASER_nC GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nC) #define GICR_PROPBASER_RaWt GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt) -#define GICR_PROPBASER_RaWb GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt) +#define GICR_PROPBASER_RaWb GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWb) #define GICR_PROPBASER_WaWt GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWt) #define GICR_PROPBASER_WaWb GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWb) #define GICR_PROPBASER_RaWaWt GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWt) @@ -192,7 +192,7 @@ #define GICR_PENDBASER_nCnB GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nCnB) #define GICR_PENDBASER_nC GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nC) #define GICR_PENDBASER_RaWt GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt) -#define GICR_PENDBASER_RaWb GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt) +#define GICR_PENDBASER_RaWb GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWb) #define GICR_PENDBASER_WaWt GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWt) #define GICR_PENDBASER_WaWb GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWb) #define GICR_PENDBASER_RaWaWt GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWt) @@ -251,7 +251,7 @@ #define GICR_VPROPBASER_nCnB GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nCnB) #define GICR_VPROPBASER_nC GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nC) #define GICR_VPROPBASER_RaWt GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWt) -#define GICR_VPROPBASER_RaWb GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWt) +#define GICR_VPROPBASER_RaWb GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWb) #define GICR_VPROPBASER_WaWt GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWt) #define GICR_VPROPBASER_WaWb GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWb) #define GICR_VPROPBASER_RaWaWt GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWaWt) @@ -277,7 +277,7 @@ #define GICR_VPENDBASER_nCnB GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nCnB) #define GICR_VPENDBASER_nC GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nC) #define GICR_VPENDBASER_RaWt GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWt) -#define GICR_VPENDBASER_RaWb GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWt) +#define GICR_VPENDBASER_RaWb GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWb) #define GICR_VPENDBASER_WaWt GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWt) #define GICR_VPENDBASER_WaWb GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWb) #define GICR_VPENDBASER_RaWaWt GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWaWt) @@ -351,7 +351,7 @@ #define GITS_CBASER_nCnB GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nCnB) #define GITS_CBASER_nC GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nC) #define GITS_CBASER_RaWt GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt) -#define GITS_CBASER_RaWb GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt) +#define GITS_CBASER_RaWb GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWb) #define GITS_CBASER_WaWt GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWt) #define GITS_CBASER_WaWb GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWb) #define GITS_CBASER_RaWaWt GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWt) @@ -377,7 +377,7 @@ #define GITS_BASER_nCnB GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nCnB) #define GITS_BASER_nC GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nC) #define GITS_BASER_RaWt GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt) -#define GITS_BASER_RaWb GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt) +#define GITS_BASER_RaWb GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWb) #define GITS_BASER_WaWt GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWt) #define GITS_BASER_WaWb GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWb) #define GITS_BASER_RaWaWt GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWt) -- cgit v1.2.3 From 4e544bac8267f65a0bf06aed1bde9964da4812ed Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Wed, 24 Apr 2019 21:11:58 +0200 Subject: PCI: Add pci_dev_id() helper In several places in the kernel we find PCI_DEVID used like this: PCI_DEVID(dev->bus->number, dev->devfn) Add a "pci_dev_id(struct pci_dev *dev)" helper to simplify callers. Signed-off-by: Heiner Kallweit Signed-off-by: Bjorn Helgaas --- include/linux/pci.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pci.h b/include/linux/pci.h index 5f32275358cf..26fa6d143dfe 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -596,6 +596,11 @@ struct pci_bus { #define to_pci_bus(n) container_of(n, struct pci_bus, dev) +static inline u16 pci_dev_id(struct pci_dev *dev) +{ + return PCI_DEVID(dev->bus->number, dev->devfn); +} + /* * Returns true if the PCI bus is root (behind host-PCI bridge), * false otherwise -- cgit v1.2.3 From e8025bab7bfbd48d262c01c26c15a9d465fbb083 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (VMware)" Date: Wed, 24 Apr 2019 12:34:46 -0400 Subject: function_graph: Place ftrace_graph_entry_stub() prototype in include/linux/ftrace.h ftrace_graph_entry_stub() is defined in generic code, its prototype should be in the generic header and not defined throughout architecture specific code in order to use it. Cc: Greentime Hu Cc: Vincent Chen Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: linux-parisc@vger.kernel.org Signed-off-by: Steven Rostedt (VMware) --- include/linux/ftrace.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 730876187344..9b28fce436ca 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -751,6 +751,8 @@ struct ftrace_graph_ret { typedef void (*trace_func_graph_ret_t)(struct ftrace_graph_ret *); /* return */ typedef int (*trace_func_graph_ent_t)(struct ftrace_graph_ent *); /* entry */ +extern int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace); + #ifdef CONFIG_FUNCTION_GRAPH_TRACER struct fgraph_ops { -- cgit v1.2.3 From 316793fb2d907d4726b4977b6be26ec653827774 Mon Sep 17 00:00:00 2001 From: Eli Britstein Date: Mon, 29 Apr 2019 18:14:01 +0000 Subject: net/mlx5: E-Switch: Introduce prio tag mode Current ConnectX HW is unable to perform VLAN pop in TX path and VLAN push on RX path. To workaround that limitation untagged packets will be tagged with VLAN ID 0x000 (priority tag) and pop/push actions will be replaced by VLAN re-write actions (which are supported by the HW). Introduce prio tag mode as a pre-step to controlling the workaround behavior. Signed-off-by: Eli Britstein Reviewed-by: Oz Shlomo Signed-off-by: Saeed Mahameed --- include/linux/mlx5/mlx5_ifc.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 4b37519bd6a5..eeedf3f53ed3 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -951,7 +951,9 @@ struct mlx5_ifc_cmd_hca_cap_bits { u8 log_max_srq_sz[0x8]; u8 log_max_qp_sz[0x8]; - u8 reserved_at_90[0xb]; + u8 reserved_at_90[0x8]; + u8 prio_tag_required[0x1]; + u8 reserved_at_99[0x2]; u8 log_max_qp[0x5]; u8 reserved_at_a0[0xb]; -- cgit v1.2.3 From 27b942fbbd3107d4e969ece133925cd646239ef4 Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Mon, 29 Apr 2019 18:14:02 +0000 Subject: net/mlx5: Get rid of storing copy of device name Currently mlx5 core stores copy of the PCI device name in a mlx5_priv structure and uses pr_warn, pr_err helpers. Get rid of the copy of this name; instead store the parent device pointer that contains name as well as dma specific parameters. This also allows to use kernel's well defined dev_warn, dev_err, dev_dbg device specific print routines. This is also a preparation patch to access non PCI parent device in future. Signed-off-by: Parav Pandit Signed-off-by: Saeed Mahameed --- include/linux/mlx5/driver.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 6c43191c0186..582a9680b182 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -56,7 +56,6 @@ enum { MLX5_BOARD_ID_LEN = 64, - MLX5_MAX_NAME_LEN = 16, }; enum { @@ -514,7 +513,6 @@ struct mlx5_rl_table { }; struct mlx5_priv { - char name[MLX5_MAX_NAME_LEN]; struct mlx5_eq_table *eq_table; /* pages stuff */ @@ -641,6 +639,7 @@ struct mlx5_fw_tracer; struct mlx5_vxlan; struct mlx5_core_dev { + struct device *device; struct pci_dev *pdev; /* sync pci state */ struct mutex pci_status_mutex; -- cgit v1.2.3 From d83eb50e29de36ddc819863ab7b9d2da58bccbd0 Mon Sep 17 00:00:00 2001 From: Maor Gottlieb Date: Mon, 29 Apr 2019 18:14:12 +0000 Subject: net/mlx5: Add support in RDMA RX steering Add new flow steering namespace - MLX5_FLOW_NAMESPACE_RDMA_RX. Flow steering rules in this namespace are used to filter RDMA traffic. Signed-off-by: Maor Gottlieb Reviewed-by: Mark Bloch Signed-off-by: Saeed Mahameed --- include/linux/mlx5/device.h | 6 ++++++ include/linux/mlx5/fs.h | 1 + include/linux/mlx5/mlx5_ifc.h | 2 +- 3 files changed, 8 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index f93a5598b942..28ebb6c93542 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -1166,6 +1166,12 @@ enum mlx5_qcam_feature_groups { #define MLX5_CAP_FLOWTABLE_SNIFFER_TX_MAX(mdev, cap) \ MLX5_CAP_FLOWTABLE_MAX(mdev, flow_table_properties_nic_transmit_sniffer.cap) +#define MLX5_CAP_FLOWTABLE_RDMA_RX(mdev, cap) \ + MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive_rdma.cap) + +#define MLX5_CAP_FLOWTABLE_RDMA_RX_MAX(mdev, cap) \ + MLX5_CAP_FLOWTABLE_MAX(mdev, flow_table_properties_nic_receive_rdma.cap) + #define MLX5_CAP_ESW_FLOWTABLE(mdev, cap) \ MLX5_GET(flow_table_eswitch_cap, \ mdev->caps.hca_cur[MLX5_CAP_ESWITCH_FLOW_TABLE], cap) diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h index fd91df3a4e09..e690ba0f965c 100644 --- a/include/linux/mlx5/fs.h +++ b/include/linux/mlx5/fs.h @@ -73,6 +73,7 @@ enum mlx5_flow_namespace_type { MLX5_FLOW_NAMESPACE_SNIFFER_RX, MLX5_FLOW_NAMESPACE_SNIFFER_TX, MLX5_FLOW_NAMESPACE_EGRESS, + MLX5_FLOW_NAMESPACE_RDMA_RX, }; enum { diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index eeedf3f53ed3..89e7194b3d97 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -598,7 +598,7 @@ struct mlx5_ifc_flow_table_nic_cap_bits { struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_nic_receive; - u8 reserved_at_400[0x200]; + struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_nic_receive_rdma; struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_nic_receive_sniffer; -- cgit v1.2.3 From f6f7d6b5bd818cc84eebb55ba6bcba38cfd3b385 Mon Sep 17 00:00:00 2001 From: Maor Gottlieb Date: Mon, 29 Apr 2019 18:14:14 +0000 Subject: net/mlx5: Add new miss flow table action Flow table supports three types of miss action: 1. Default miss action - go to default miss table according to table. 2. Go to specific table. 3. Switch domain - go to the root table of an alternative steering table domain. New table miss action was added - switch_domain. The next domain for RDMA_RX namespace is the NIC RX domain. Signed-off-by: Maor Gottlieb Reviewed-by: Mark Bloch Signed-off-by: Saeed Mahameed --- include/linux/mlx5/mlx5_ifc.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 89e7194b3d97..7d9264b282d1 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -370,7 +370,9 @@ struct mlx5_ifc_flow_table_prop_layout_bits { u8 reformat_l3_tunnel_to_l2[0x1]; u8 reformat_l2_to_l3_tunnel[0x1]; u8 reformat_and_modify_action[0x1]; - u8 reserved_at_15[0xb]; + u8 reserved_at_15[0x2]; + u8 table_miss_action_domain[0x1]; + u8 reserved_at_18[0x8]; u8 reserved_at_20[0x2]; u8 log_max_ft_size[0x6]; u8 log_max_modify_header_context[0x8]; @@ -1284,6 +1286,12 @@ enum mlx5_flow_destination_type { MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM = 0x101, }; +enum mlx5_flow_table_miss_action { + MLX5_FLOW_TABLE_MISS_ACTION_DEF, + MLX5_FLOW_TABLE_MISS_ACTION_FWD, + MLX5_FLOW_TABLE_MISS_ACTION_SWITCH_DOMAIN, +}; + struct mlx5_ifc_dest_format_struct_bits { u8 destination_type[0x8]; u8 destination_id[0x18]; -- cgit v1.2.3 From 80f09dfc237f181e92968a72d97b7a4202baa453 Mon Sep 17 00:00:00 2001 From: Maor Gottlieb Date: Mon, 29 Apr 2019 18:14:16 +0000 Subject: net/mlx5: Eswitch, enable RoCE loopback traffic When in switchdev mode, we would like to treat loopback RoCE traffic (on eswitch manager) as RDMA and not as regular Ethernet traffic In order to enable it we add flow steering rule that forward RoCE loopback traffic to the HW RoCE filter (by adding allow rule). In addition we add RoCE address in GID index 0, which will be set in the RoCE loopback packet. Signed-off-by: Maor Gottlieb Reviewed-by: Mark Bloch Acked-by: Leon Romanovsky Signed-off-by: Saeed Mahameed --- include/linux/mlx5/driver.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 582a9680b182..7fa95270dd59 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -512,6 +512,12 @@ struct mlx5_rl_table { struct mlx5_rl_entry *rl_entry; }; +struct mlx5_core_roce { + struct mlx5_flow_table *ft; + struct mlx5_flow_group *fg; + struct mlx5_flow_handle *allow_rule; +}; + struct mlx5_priv { struct mlx5_eq_table *eq_table; @@ -565,6 +571,7 @@ struct mlx5_priv { struct mlx5_lag *lag; struct mlx5_devcom *devcom; unsigned long pci_dev_data; + struct mlx5_core_roce roce; struct mlx5_fc_stats fc_stats; struct mlx5_rl_table rl_table; -- cgit v1.2.3 From 75d90e7def8e20b57c1de9e2b672c3bf9249da83 Mon Sep 17 00:00:00 2001 From: Yevgeny Kliteynik Date: Mon, 29 Apr 2019 18:14:18 +0000 Subject: net/mlx5: Geneve, Add basic Geneve encap/decap flow table capabilities Introduce support for Geneve flow specification and allow the creation of rules that are matching on basic Geneve protocol fields: VNI, OAM bit, protocol type, options length. Reviewed-by: Oz Shlomo Signed-off-by: Yevgeny Kliteynik Signed-off-by: Saeed Mahameed --- include/linux/mlx5/mlx5_ifc.h | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 7d9264b282d1..268ac126b3bb 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -307,7 +307,11 @@ struct mlx5_ifc_flow_table_fields_supported_bits { u8 outer_gre_protocol[0x1]; u8 outer_gre_key[0x1]; u8 outer_vxlan_vni[0x1]; - u8 reserved_at_1a[0x5]; + u8 outer_geneve_vni[0x1]; + u8 outer_geneve_oam[0x1]; + u8 outer_geneve_protocol_type[0x1]; + u8 outer_geneve_opt_len[0x1]; + u8 reserved_at_1e[0x1]; u8 source_eswitch_port[0x1]; u8 inner_dmac[0x1]; @@ -480,7 +484,9 @@ struct mlx5_ifc_fte_match_set_misc_bits { u8 vxlan_vni[0x18]; u8 reserved_at_b8[0x8]; - u8 reserved_at_c0[0x20]; + u8 geneve_vni[0x18]; + u8 reserved_at_d8[0x7]; + u8 geneve_oam[0x1]; u8 reserved_at_e0[0xc]; u8 outer_ipv6_flow_label[0x14]; @@ -488,7 +494,11 @@ struct mlx5_ifc_fte_match_set_misc_bits { u8 reserved_at_100[0xc]; u8 inner_ipv6_flow_label[0x14]; - u8 reserved_at_120[0x28]; + u8 reserved_at_120[0xa]; + u8 geneve_opt_len[0x6]; + u8 geneve_protocol_type[0x10]; + + u8 reserved_at_140[0x8]; u8 bth_dst_qp[0x18]; u8 reserved_at_160[0x20]; u8 outer_esp_spi[0x20]; -- cgit v1.2.3 From b169e64a24442e02cafee1586f17fcb713fe65a6 Mon Sep 17 00:00:00 2001 From: Yevgeny Kliteynik Date: Mon, 29 Apr 2019 18:14:20 +0000 Subject: net/mlx5: Geneve, Add flow table capabilities for Geneve decap with TLV options Introduce specification for Geneve decap flow with encapsulation options and allow creation of rules that are matching on Geneve TLV options. Reviewed-by: Oz Shlomo Signed-off-by: Yevgeny Kliteynik Signed-off-by: Saeed Mahameed --- include/linux/mlx5/device.h | 4 +++- include/linux/mlx5/mlx5_ifc.h | 50 ++++++++++++++++++++++++++++++++++++++----- 2 files changed, 48 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index 28ebb6c93542..4ab801040e98 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -1001,7 +1001,8 @@ enum { MLX5_MATCH_OUTER_HEADERS = 1 << 0, MLX5_MATCH_MISC_PARAMETERS = 1 << 1, MLX5_MATCH_INNER_HEADERS = 1 << 2, - + MLX5_MATCH_MISC_PARAMETERS_2 = 1 << 3, + MLX5_MATCH_MISC_PARAMETERS_3 = 1 << 4, }; enum { @@ -1045,6 +1046,7 @@ enum mlx5_mpls_supported_fields { }; enum mlx5_flex_parser_protos { + MLX5_FLEX_PROTO_GENEVE = 1 << 3, MLX5_FLEX_PROTO_CW_MPLS_GRE = 1 << 4, MLX5_FLEX_PROTO_CW_MPLS_UDP = 1 << 5, }; diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 268ac126b3bb..6a7fc18a9fe3 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -86,6 +86,11 @@ enum { enum { MLX5_GENERAL_OBJ_TYPES_CAP_SW_ICM = (1ULL << MLX5_OBJ_TYPE_SW_ICM), + MLX5_GENERAL_OBJ_TYPES_CAP_GENEVE_TLV_OPT = (1ULL << 11), +}; + +enum { + MLX5_OBJ_TYPE_GENEVE_TLV_OPT = 0x000b, }; enum { @@ -339,7 +344,8 @@ struct mlx5_ifc_flow_table_fields_supported_bits { u8 inner_tcp_flags[0x1]; u8 reserved_at_37[0x9]; - u8 reserved_at_40[0x5]; + u8 geneve_tlv_option_0_data[0x1]; + u8 reserved_at_41[0x4]; u8 outer_first_mpls_over_udp[0x4]; u8 outer_first_mpls_over_gre[0x4]; u8 inner_first_mpls[0x4]; @@ -528,6 +534,12 @@ struct mlx5_ifc_fte_match_set_misc2_bits { u8 reserved_at_1a0[0x60]; }; +struct mlx5_ifc_fte_match_set_misc3_bits { + u8 reserved_at_0[0x120]; + u8 geneve_tlv_option_0_data[0x20]; + u8 reserved_at_140[0xc0]; +}; + struct mlx5_ifc_cmd_pas_bits { u8 pa_h[0x20]; @@ -1247,9 +1259,13 @@ struct mlx5_ifc_cmd_hca_cap_bits { u8 num_of_uars_per_page[0x20]; u8 flex_parser_protocols[0x20]; - u8 reserved_at_560[0x20]; - u8 reserved_at_580[0x3c]; + u8 max_geneve_tlv_options[0x8]; + u8 reserved_at_568[0x3]; + u8 max_geneve_tlv_option_data_len[0x5]; + u8 reserved_at_570[0x10]; + + u8 reserved_at_580[0x1c]; u8 mini_cqe_resp_stride_index[0x1]; u8 cqe_128_always[0x1]; u8 cqe_compression_128[0x1]; @@ -1283,7 +1299,9 @@ struct mlx5_ifc_cmd_hca_cap_bits { u8 uctx_cap[0x20]; - u8 reserved_at_6c0[0x140]; + u8 reserved_at_6c0[0x4]; + u8 flex_parser_id_geneve_tlv_option_0[0x4]; + u8 reserved_at_6c8[0x138]; }; enum mlx5_flow_destination_type { @@ -1341,7 +1359,9 @@ struct mlx5_ifc_fte_match_param_bits { struct mlx5_ifc_fte_match_set_misc2_bits misc_parameters_2; - u8 reserved_at_800[0x800]; + struct mlx5_ifc_fte_match_set_misc3_bits misc_parameters_3; + + u8 reserved_at_a00[0x600]; }; enum { @@ -4850,6 +4870,7 @@ enum { MLX5_QUERY_FLOW_GROUP_OUT_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS = 0x1, MLX5_QUERY_FLOW_GROUP_OUT_MATCH_CRITERIA_ENABLE_INNER_HEADERS = 0x2, MLX5_QUERY_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS_2 = 0x3, + MLX5_QUERY_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS_3 = 0x4, }; struct mlx5_ifc_query_flow_group_out_bits { @@ -9545,6 +9566,20 @@ struct mlx5_ifc_sw_icm_bits { u8 sw_icm_start_addr[0x40]; u8 reserved_at_c0[0x140]; +}; + +struct mlx5_ifc_geneve_tlv_option_bits { + u8 modify_field_select[0x40]; + + u8 reserved_at_40[0x18]; + u8 geneve_option_fte_index[0x8]; + + u8 option_class[0x10]; + u8 option_type[0x8]; + u8 reserved_at_78[0x3]; + u8 option_data_length[0x5]; + + u8 reserved_at_80[0x180]; }; struct mlx5_ifc_create_umem_in_bits { @@ -9589,6 +9624,11 @@ struct mlx5_ifc_create_sw_icm_in_bits { struct mlx5_ifc_sw_icm_bits sw_icm; }; +struct mlx5_ifc_create_geneve_tlv_option_in_bits { + struct mlx5_ifc_general_obj_in_cmd_hdr_bits hdr; + struct mlx5_ifc_geneve_tlv_option_bits geneve_tlv_opt; +}; + struct mlx5_ifc_mtrc_string_db_param_bits { u8 string_db_base_address[0x20]; -- cgit v1.2.3 From a8d78d9f385642696723fcb9c52c2c2805fa4249 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Apr 2019 18:05:37 +0200 Subject: USB: serial: clean up throttle handling Clean up the throttle implementation by dropping the redundant throttle_req flag which was a remnant from back when there was only a single read URB. Also convert the throttled flag to an atomic bit flag. Signed-off-by: Johan Hovold --- include/linux/usb/serial.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index 1c19f77ed541..d8bdab8f3c26 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -28,6 +28,7 @@ /* USB serial flags */ #define USB_SERIAL_WRITE_BUSY 0 +#define USB_SERIAL_THROTTLED 1 /** * usb_serial_port: structure for the specific ports of a device. @@ -67,8 +68,6 @@ * @flags: usb serial port flags * @write_wait: a wait_queue_head_t used by the port. * @work: work queue entry for the line discipline waking up. - * @throttled: nonzero if the read urb is inactive to throttle the device - * @throttle_req: nonzero if the tty wants to throttle us * @dev: pointer to the serial device * * This structure is used by the usb-serial core and drivers for the specific @@ -115,8 +114,6 @@ struct usb_serial_port { unsigned long flags; wait_queue_head_t write_wait; struct work_struct work; - char throttled; - char throttle_req; unsigned long sysrq; /* sysrq timeout */ struct device dev; }; -- cgit v1.2.3 From 80ed53707bb3ec92c331ca33f45c113338ee434d Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Fri, 26 Apr 2019 08:01:32 +0200 Subject: USB: serial: drop unused iflag macro Drop the RELEVANT_IFLAG() macro which essentially hasn't been used for over a decade except in some remnant debug printks that were recently removed. Reviewed-by: Greg Kroah-Hartman Signed-off-by: Johan Hovold --- include/linux/usb/serial.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index d8bdab8f3c26..14cac4a1ae8f 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -23,9 +23,6 @@ /* The maximum number of ports one device can grab at once */ #define MAX_NUM_PORTS 16 -/* parity check flag */ -#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK)) - /* USB serial flags */ #define USB_SERIAL_WRITE_BUSY 0 #define USB_SERIAL_THROTTLED 1 -- cgit v1.2.3 From a1cd3f0883f435e5f9ae6530d7e62b361c87a91a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Thu, 18 Apr 2019 12:39:36 +0200 Subject: KVM: Introduce a 'mmap' method for KVM devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some KVM devices will want to handle special mappings related to the underlying HW. For instance, the XIVE interrupt controller of the POWER9 processor has MMIO pages for thread interrupt management and for interrupt source control that need to be exposed to the guest when the OS has the required support. Cc: Paolo Bonzini Signed-off-by: Cédric Le Goater Reviewed-by: David Gibson Signed-off-by: Paul Mackerras --- include/linux/kvm_host.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 9d55c63db09b..831d963451d8 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1245,6 +1245,7 @@ struct kvm_device_ops { int (*has_attr)(struct kvm_device *dev, struct kvm_device_attr *attr); long (*ioctl)(struct kvm_device *dev, unsigned int ioctl, unsigned long arg); + int (*mmap)(struct kvm_device *dev, struct vm_area_struct *vma); }; void kvm_device_get(struct kvm_device *dev); -- cgit v1.2.3 From 2bde9b3ec8bdf60788e9e2ce8c07a2f8d6003dbd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Thu, 18 Apr 2019 12:39:41 +0200 Subject: KVM: Introduce a 'release' method for KVM devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When a P9 sPAPR VM boots, the CAS negotiation process determines which interrupt mode to use (XICS legacy or XIVE native) and invokes a machine reset to activate the chosen mode. To be able to switch from one interrupt mode to another, we introduce the capability to release a KVM device without destroying the VM. The KVM device interface is extended with a new 'release' method which is called when the file descriptor of the device is closed. Once 'release' is called, the 'destroy' method will not be called anymore as the device is removed from the device list of the VM. Cc: Paolo Bonzini Signed-off-by: Cédric Le Goater Reviewed-by: David Gibson Signed-off-by: Paul Mackerras --- include/linux/kvm_host.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 831d963451d8..722692e2f745 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1240,6 +1240,15 @@ struct kvm_device_ops { */ void (*destroy)(struct kvm_device *dev); + /* + * Release is an alternative method to free the device. It is + * called when the device file descriptor is closed. Once + * release is called, the destroy method will not be called + * anymore as the device is removed from the device list of + * the VM. kvm->lock is held. + */ + void (*release)(struct kvm_device *dev); + int (*set_attr)(struct kvm_device *dev, struct kvm_device_attr *attr); int (*get_attr)(struct kvm_device *dev, struct kvm_device_attr *attr); int (*has_attr)(struct kvm_device *dev, struct kvm_device_attr *attr); -- cgit v1.2.3 From aad42dd44db086c79ca3f470ad563d2ac4ac218d Mon Sep 17 00:00:00 2001 From: Nadav Amit Date: Fri, 26 Apr 2019 16:22:44 -0700 Subject: uprobes: Initialize uprobes earlier In order to have a separate address space for text poking, we need to duplicate init_mm early during start_kernel(). This, however, introduces a problem since uprobes functions are called from dup_mmap(), but uprobes is still not initialized in this early stage. Since uprobes initialization is necassary for fork, and since all the dependant initialization has been done when fork is initialized (percpu and vmalloc), move uprobes initialization to fork_init(). It does not seem uprobes introduces any security problem for the poking_mm. Crash and burn if uprobes initialization fails, similarly to other early initializations. Change the init_probes() name to probes_init() to match other early initialization functions name convention. Reported-by: kernel test robot Signed-off-by: Nadav Amit Signed-off-by: Peter Zijlstra (Intel) Cc: Andy Lutomirski Cc: Arnaldo Carvalho de Melo Cc: Borislav Petkov Cc: Dave Hansen Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Rick Edgecombe Cc: Rik van Riel Cc: Thomas Gleixner Cc: akpm@linux-foundation.org Cc: ard.biesheuvel@linaro.org Cc: deneen.t.dock@intel.com Cc: kernel-hardening@lists.openwall.com Cc: kristen@linux.intel.com Cc: linux_dti@icloud.com Cc: will.deacon@arm.com Link: https://lkml.kernel.org/r/20190426232303.28381-6-nadav.amit@gmail.com Signed-off-by: Ingo Molnar --- include/linux/uprobes.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h index 103a48a48872..12bf0b68ed92 100644 --- a/include/linux/uprobes.h +++ b/include/linux/uprobes.h @@ -115,6 +115,7 @@ struct uprobes_state { struct xol_area *xol_area; }; +extern void __init uprobes_init(void); extern int set_swbp(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr); extern int set_orig_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr); extern bool is_swbp_insn(uprobe_opcode_t *insn); @@ -154,6 +155,10 @@ extern void arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr, struct uprobes_state { }; +static inline void uprobes_init(void) +{ +} + #define uprobe_get_trap_addr(regs) instruction_pointer(regs) static inline int -- cgit v1.2.3 From 13585fa0668c724efab9635aaeef6ec390217415 Mon Sep 17 00:00:00 2001 From: Nadav Amit Date: Thu, 25 Apr 2019 17:11:25 -0700 Subject: fork: Provide a function for copying init_mm Provide a function for copying init_mm. This function will be later used for setting a temporary mm. Tested-by: Masami Hiramatsu Signed-off-by: Nadav Amit Signed-off-by: Rick Edgecombe Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Masami Hiramatsu Cc: Cc: Cc: Cc: Cc: Cc: Cc: Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Dave Hansen Cc: H. Peter Anvin Cc: Kees Cook Cc: Linus Torvalds Cc: Rik van Riel Cc: Thomas Gleixner Link: https://lkml.kernel.org/r/20190426001143.4983-6-namit@vmware.com Signed-off-by: Ingo Molnar --- include/linux/sched/task.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index 2e97a2227045..f1227f2c38a4 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -76,6 +76,7 @@ extern void exit_itimers(struct signal_struct *); extern long _do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *, unsigned long); extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *); struct task_struct *fork_idle(int); +struct mm_struct *copy_init_mm(void); extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); extern long kernel_wait4(pid_t, int __user *, int, struct rusage *); -- cgit v1.2.3 From f2c65fb3221adc6b73b0549fc7ba892022db9797 Mon Sep 17 00:00:00 2001 From: Nadav Amit Date: Thu, 25 Apr 2019 17:11:31 -0700 Subject: x86/modules: Avoid breaking W^X while loading modules When modules and BPF filters are loaded, there is a time window in which some memory is both writable and executable. An attacker that has already found another vulnerability (e.g., a dangling pointer) might be able to exploit this behavior to overwrite kernel code. Prevent having writable executable PTEs in this stage. In addition, avoiding having W+X mappings can also slightly simplify the patching of modules code on initialization (e.g., by alternatives and static-key), as would be done in the next patch. This was actually the main motivation for this patch. To avoid having W+X mappings, set them initially as RW (NX) and after they are set as RO set them as X as well. Setting them as executable is done as a separate step to avoid one core in which the old PTE is cached (hence writable), and another which sees the updated PTE (executable), which would break the W^X protection. Suggested-by: Thomas Gleixner Suggested-by: Andy Lutomirski Signed-off-by: Nadav Amit Signed-off-by: Rick Edgecombe Signed-off-by: Peter Zijlstra (Intel) Cc: Cc: Cc: Cc: Cc: Cc: Cc: Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Dave Hansen Cc: H. Peter Anvin Cc: Jessica Yu Cc: Kees Cook Cc: Linus Torvalds Cc: Masami Hiramatsu Cc: Rik van Riel Link: https://lkml.kernel.org/r/20190426001143.4983-12-namit@vmware.com Signed-off-by: Ingo Molnar --- include/linux/filter.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/filter.h b/include/linux/filter.h index 6074aa064b54..14ec3bdad9a9 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -746,6 +746,7 @@ static inline void bpf_prog_unlock_ro(struct bpf_prog *fp) static inline void bpf_jit_binary_lock_ro(struct bpf_binary_header *hdr) { set_memory_ro((unsigned long)hdr, hdr->pages); + set_memory_x((unsigned long)hdr, hdr->pages); } static inline void bpf_jit_binary_unlock_ro(struct bpf_binary_header *hdr) -- cgit v1.2.3 From d253ca0c3865a8d9a8c01143cf20425e0be4d0ce Mon Sep 17 00:00:00 2001 From: Rick Edgecombe Date: Thu, 25 Apr 2019 17:11:34 -0700 Subject: x86/mm/cpa: Add set_direct_map_*() functions Add two new functions set_direct_map_default_noflush() and set_direct_map_invalid_noflush() for setting the direct map alias for the page to its default valid permissions and to an invalid state that cannot be cached in a TLB, respectively. These functions do not flush the TLB. Note, __kernel_map_pages() does something similar but flushes the TLB and doesn't reset the permission bits to default on all architectures. Also add an ARCH config ARCH_HAS_SET_DIRECT_MAP for specifying whether these have an actual implementation or a default empty one. Signed-off-by: Rick Edgecombe Signed-off-by: Peter Zijlstra (Intel) Cc: Cc: Cc: Cc: Cc: Cc: Cc: Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Dave Hansen Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Nadav Amit Cc: Rik van Riel Cc: Thomas Gleixner Link: https://lkml.kernel.org/r/20190426001143.4983-15-namit@vmware.com Signed-off-by: Ingo Molnar --- include/linux/set_memory.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux') diff --git a/include/linux/set_memory.h b/include/linux/set_memory.h index 2a986d282a97..b5071497b8cb 100644 --- a/include/linux/set_memory.h +++ b/include/linux/set_memory.h @@ -17,6 +17,17 @@ static inline int set_memory_x(unsigned long addr, int numpages) { return 0; } static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; } #endif +#ifndef CONFIG_ARCH_HAS_SET_DIRECT_MAP +static inline int set_direct_map_invalid_noflush(struct page *page) +{ + return 0; +} +static inline int set_direct_map_default_noflush(struct page *page) +{ + return 0; +} +#endif + #ifndef set_mce_nospec static inline int set_mce_nospec(unsigned long pfn) { -- cgit v1.2.3 From d63326928611600ad65baff54a70f53b02b3cdfe Mon Sep 17 00:00:00 2001 From: Rick Edgecombe Date: Thu, 25 Apr 2019 17:11:35 -0700 Subject: mm/hibernation: Make hibernation handle unmapped pages Make hibernate handle unmapped pages on the direct map when CONFIG_ARCH_HAS_SET_ALIAS=y is set. These functions allow for setting pages to invalid configurations, so now hibernate should check if the pages have valid mappings and handle if they are unmapped when doing a hibernate save operation. Previously this checking was already done when CONFIG_DEBUG_PAGEALLOC=y was configured. It does not appear to have a big hibernating performance impact. The speed of the saving operation before this change was measured as 819.02 MB/s, and after was measured at 813.32 MB/s. Before: [ 4.670938] PM: Wrote 171996 kbytes in 0.21 seconds (819.02 MB/s) After: [ 4.504714] PM: Wrote 178932 kbytes in 0.22 seconds (813.32 MB/s) Signed-off-by: Rick Edgecombe Signed-off-by: Peter Zijlstra (Intel) Acked-by: Pavel Machek Cc: Cc: Cc: Cc: Cc: Cc: Cc: Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Dave Hansen Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Nadav Amit Cc: Rafael J. Wysocki Cc: Rik van Riel Cc: Thomas Gleixner Link: https://lkml.kernel.org/r/20190426001143.4983-16-namit@vmware.com Signed-off-by: Ingo Molnar --- include/linux/mm.h | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mm.h b/include/linux/mm.h index 6b10c21630f5..083d7b4863ed 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2610,37 +2610,31 @@ static inline void kernel_poison_pages(struct page *page, int numpages, int enable) { } #endif -#ifdef CONFIG_DEBUG_PAGEALLOC extern bool _debug_pagealloc_enabled; -extern void __kernel_map_pages(struct page *page, int numpages, int enable); static inline bool debug_pagealloc_enabled(void) { - return _debug_pagealloc_enabled; + return IS_ENABLED(CONFIG_DEBUG_PAGEALLOC) && _debug_pagealloc_enabled; } +#if defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_ARCH_HAS_SET_DIRECT_MAP) +extern void __kernel_map_pages(struct page *page, int numpages, int enable); + static inline void kernel_map_pages(struct page *page, int numpages, int enable) { - if (!debug_pagealloc_enabled()) - return; - __kernel_map_pages(page, numpages, enable); } #ifdef CONFIG_HIBERNATION extern bool kernel_page_present(struct page *page); #endif /* CONFIG_HIBERNATION */ -#else /* CONFIG_DEBUG_PAGEALLOC */ +#else /* CONFIG_DEBUG_PAGEALLOC || CONFIG_ARCH_HAS_SET_DIRECT_MAP */ static inline void kernel_map_pages(struct page *page, int numpages, int enable) {} #ifdef CONFIG_HIBERNATION static inline bool kernel_page_present(struct page *page) { return true; } #endif /* CONFIG_HIBERNATION */ -static inline bool debug_pagealloc_enabled(void) -{ - return false; -} -#endif /* CONFIG_DEBUG_PAGEALLOC */ +#endif /* CONFIG_DEBUG_PAGEALLOC || CONFIG_ARCH_HAS_SET_DIRECT_MAP */ #ifdef __HAVE_ARCH_GATE_AREA extern struct vm_area_struct *get_gate_vma(struct mm_struct *mm); -- cgit v1.2.3 From 868b104d7379e28013e9d48bdd2db25e0bdcf751 Mon Sep 17 00:00:00 2001 From: Rick Edgecombe Date: Thu, 25 Apr 2019 17:11:36 -0700 Subject: mm/vmalloc: Add flag for freeing of special permsissions Add a new flag VM_FLUSH_RESET_PERMS, for enabling vfree operations to immediately clear executable TLB entries before freeing pages, and handle resetting permissions on the directmap. This flag is useful for any kind of memory with elevated permissions, or where there can be related permissions changes on the directmap. Today this is RO+X and RO memory. Although this enables directly vfreeing non-writeable memory now, non-writable memory cannot be freed in an interrupt because the allocation itself is used as a node on deferred free list. So when RO memory needs to be freed in an interrupt the code doing the vfree needs to have its own work queue, as was the case before the deferred vfree list was added to vmalloc. For architectures with set_direct_map_ implementations this whole operation can be done with one TLB flush when centralized like this. For others with directmap permissions, currently only arm64, a backup method using set_memory functions is used to reset the directmap. When arm64 adds set_direct_map_ functions, this backup can be removed. When the TLB is flushed to both remove TLB entries for the vmalloc range mapping and the direct map permissions, the lazy purge operation could be done to try to save a TLB flush later. However today vm_unmap_aliases could flush a TLB range that does not include the directmap. So a helper is added with extra parameters that can allow both the vmalloc address and the direct mapping to be flushed during this operation. The behavior of the normal vm_unmap_aliases function is unchanged. Suggested-by: Dave Hansen Suggested-by: Andy Lutomirski Suggested-by: Will Deacon Signed-off-by: Rick Edgecombe Signed-off-by: Peter Zijlstra (Intel) Cc: Cc: Cc: Cc: Cc: Cc: Cc: Borislav Petkov Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Nadav Amit Cc: Rik van Riel Cc: Thomas Gleixner Link: https://lkml.kernel.org/r/20190426001143.4983-17-namit@vmware.com Signed-off-by: Ingo Molnar --- include/linux/vmalloc.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'include/linux') diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 398e9c95cd61..c6eebb839552 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -21,6 +21,11 @@ struct notifier_block; /* in notifier.h */ #define VM_UNINITIALIZED 0x00000020 /* vm_struct is not fully initialized */ #define VM_NO_GUARD 0x00000040 /* don't add guard page */ #define VM_KASAN 0x00000080 /* has allocated kasan shadow memory */ +/* + * Memory with VM_FLUSH_RESET_PERMS cannot be freed in an interrupt or with + * vfree_atomic(). + */ +#define VM_FLUSH_RESET_PERMS 0x00000100 /* Reset direct map and flush TLB on unmap */ /* bits [20..32] reserved for arch specific ioremap internals */ /* @@ -142,6 +147,13 @@ extern int map_kernel_range_noflush(unsigned long start, unsigned long size, pgprot_t prot, struct page **pages); extern void unmap_kernel_range_noflush(unsigned long addr, unsigned long size); extern void unmap_kernel_range(unsigned long addr, unsigned long size); +static inline void set_vm_flush_reset_perms(void *addr) +{ + struct vm_struct *vm = find_vm_area(addr); + + if (vm) + vm->flags |= VM_FLUSH_RESET_PERMS; +} #else static inline int map_kernel_range_noflush(unsigned long start, unsigned long size, @@ -157,6 +169,9 @@ static inline void unmap_kernel_range(unsigned long addr, unsigned long size) { } +static inline void set_vm_flush_reset_perms(void *addr) +{ +} #endif /* Allocate/destroy a 'vmalloc' VM area. */ -- cgit v1.2.3 From d53d2f78ceadba081fc7785570798c3c8d50a718 Mon Sep 17 00:00:00 2001 From: Rick Edgecombe Date: Thu, 25 Apr 2019 17:11:38 -0700 Subject: bpf: Use vmalloc special flag Use new flag VM_FLUSH_RESET_PERMS for handling freeing of special permissioned memory in vmalloc and remove places where memory was set RW before freeing which is no longer needed. Don't track if the memory is RO anymore because it is now tracked in vmalloc. Signed-off-by: Rick Edgecombe Signed-off-by: Peter Zijlstra (Intel) Cc: Cc: Cc: Cc: Cc: Cc: Cc: Cc: Alexei Starovoitov Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Daniel Borkmann Cc: Dave Hansen Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Nadav Amit Cc: Rik van Riel Cc: Thomas Gleixner Link: https://lkml.kernel.org/r/20190426001143.4983-19-namit@vmware.com Signed-off-by: Ingo Molnar --- include/linux/filter.h | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-) (limited to 'include/linux') diff --git a/include/linux/filter.h b/include/linux/filter.h index 14ec3bdad9a9..7d3abde3f183 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -20,6 +20,7 @@ #include #include #include +#include #include @@ -503,7 +504,6 @@ struct bpf_prog { u16 pages; /* Number of allocated pages */ u16 jited:1, /* Is our filter JIT'ed? */ jit_requested:1,/* archs need to JIT the prog */ - undo_set_mem:1, /* Passed set_memory_ro() checkpoint */ gpl_compatible:1, /* Is filter GPL compatible? */ cb_access:1, /* Is control block accessed? */ dst_needed:1, /* Do we need dst entry? */ @@ -733,27 +733,17 @@ bpf_ctx_narrow_access_ok(u32 off, u32 size, u32 size_default) static inline void bpf_prog_lock_ro(struct bpf_prog *fp) { - fp->undo_set_mem = 1; + set_vm_flush_reset_perms(fp); set_memory_ro((unsigned long)fp, fp->pages); } -static inline void bpf_prog_unlock_ro(struct bpf_prog *fp) -{ - if (fp->undo_set_mem) - set_memory_rw((unsigned long)fp, fp->pages); -} - static inline void bpf_jit_binary_lock_ro(struct bpf_binary_header *hdr) { + set_vm_flush_reset_perms(hdr); set_memory_ro((unsigned long)hdr, hdr->pages); set_memory_x((unsigned long)hdr, hdr->pages); } -static inline void bpf_jit_binary_unlock_ro(struct bpf_binary_header *hdr) -{ - set_memory_rw((unsigned long)hdr, hdr->pages); -} - static inline struct bpf_binary_header * bpf_jit_binary_hdr(const struct bpf_prog *fp) { @@ -789,7 +779,6 @@ void __bpf_prog_free(struct bpf_prog *fp); static inline void bpf_prog_unlock_free(struct bpf_prog *fp) { - bpf_prog_unlock_ro(fp); __bpf_prog_free(fp); } -- cgit v1.2.3 From 2b070cfe582b8e99fec6ada57d2e59e194aae202 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 25 Apr 2019 09:03:00 +0200 Subject: block: remove the i argument to bio_for_each_segment_all We only have two callers that need the integer loop iterator, and they can easily maintain it themselves. Suggested-by: Matthew Wilcox Reviewed-by: Johannes Thumshirn Acked-by: David Sterba Reviewed-by: Hannes Reinecke Acked-by: Coly Li Reviewed-by: Matthew Wilcox Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/bio.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bio.h b/include/linux/bio.h index 9577ad8f6e28..186b2723c61b 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -134,9 +134,8 @@ static inline bool bio_next_segment(const struct bio *bio, * drivers should _never_ use the all version - the bio may have been split * before it got to the driver and the driver won't own all of it */ -#define bio_for_each_segment_all(bvl, bio, i, iter) \ - for (i = 0, bvl = bvec_init_iter_all(&iter); \ - bio_next_segment((bio), &iter); i++) +#define bio_for_each_segment_all(bvl, bio, iter) \ + for (bvl = bvec_init_iter_all(&iter); bio_next_segment((bio), &iter); ) static inline void bio_advance_iter(struct bio *bio, struct bvec_iter *iter, unsigned bytes) -- cgit v1.2.3 From 4713839dfe8269d27d83a33d1e39f9c2970eb31a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 25 Apr 2019 09:04:33 +0200 Subject: block: remove the __bio_add_pc_page export The same page optimization is a rather odd corner case, which is not used outside bio.c and which really should not be used outside of bio.c either - we have better highlevel helpers like the rq/bio mapping helpers. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/bio.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bio.h b/include/linux/bio.h index 186b2723c61b..077cecdf9437 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -435,9 +435,6 @@ void bio_chain(struct bio *, struct bio *); extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int); extern int bio_add_pc_page(struct request_queue *, struct bio *, struct page *, unsigned int, unsigned int); -extern int __bio_add_pc_page(struct request_queue *, struct bio *, - struct page *, unsigned int, unsigned int, - bool); bool __bio_try_merge_page(struct bio *bio, struct page *page, unsigned int len, unsigned int off, bool same_page); void __bio_add_page(struct bio *bio, struct page *page, -- cgit v1.2.3 From 8479e04e7d6b1974629a0f657afa8ec5f17d2e90 Mon Sep 17 00:00:00 2001 From: Luwei Kang Date: Mon, 18 Feb 2019 19:26:07 -0500 Subject: KVM: x86: Inject PMI for KVM guest Inject a PMI for KVM guest when Intel PT working in Host-Guest mode and Guest ToPA entry memory buffer was completely filled. Signed-off-by: Luwei Kang Signed-off-by: Paolo Bonzini --- include/linux/perf_event.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index e47ef764f613..820c4ff31bc5 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -30,6 +30,7 @@ struct perf_guest_info_callbacks { int (*is_in_guest)(void); int (*is_user_mode)(void); unsigned long (*get_guest_ip)(void); + void (*handle_intel_pt_intr)(void); }; #ifdef CONFIG_HAVE_HW_BREAKPOINT -- cgit v1.2.3 From e45adf665a53df0db37f784ed87c6b57ddd81885 Mon Sep 17 00:00:00 2001 From: KarimAllah Ahmed Date: Thu, 31 Jan 2019 21:24:34 +0100 Subject: KVM: Introduce a new guest mapping API In KVM, specially for nested guests, there is a dominant pattern of: => map guest memory -> do_something -> unmap guest memory In addition to all this unnecessarily noise in the code due to boiler plate code, most of the time the mapping function does not properly handle memory that is not backed by "struct page". This new guest mapping API encapsulate most of this boiler plate code and also handles guest memory that is not backed by "struct page". The current implementation of this API is using memremap for memory that is not backed by a "struct page" which would lead to a huge slow-down if it was used for high-frequency mapping operations. The API does not have any effect on current setups where guest memory is backed by a "struct page". Further patches are going to also introduce a pfn-cache which would significantly improve the performance of the memremap case. Signed-off-by: KarimAllah Ahmed Reviewed-by: Konrad Rzeszutek Wilk Signed-off-by: Paolo Bonzini --- include/linux/kvm_host.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'include/linux') diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 43f87ad83ff4..6f665c16e31d 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -227,6 +227,32 @@ enum { READING_SHADOW_PAGE_TABLES, }; +#define KVM_UNMAPPED_PAGE ((void *) 0x500 + POISON_POINTER_DELTA) + +struct kvm_host_map { + /* + * Only valid if the 'pfn' is managed by the host kernel (i.e. There is + * a 'struct page' for it. When using mem= kernel parameter some memory + * can be used as guest memory but they are not managed by host + * kernel). + * If 'pfn' is not managed by the host kernel, this field is + * initialized to KVM_UNMAPPED_PAGE. + */ + struct page *page; + void *hva; + kvm_pfn_t pfn; + kvm_pfn_t gfn; +}; + +/* + * Used to check if the mapping is valid or not. Never use 'kvm_host_map' + * directly to check for that. + */ +static inline bool kvm_vcpu_mapped(struct kvm_host_map *map) +{ + return !!map->hva; +} + /* * Sometimes a large or cross-page mmio needs to be broken up into separate * exits for userspace servicing. @@ -733,7 +759,9 @@ struct kvm_memslots *kvm_vcpu_memslots(struct kvm_vcpu *vcpu); struct kvm_memory_slot *kvm_vcpu_gfn_to_memslot(struct kvm_vcpu *vcpu, gfn_t gfn); kvm_pfn_t kvm_vcpu_gfn_to_pfn_atomic(struct kvm_vcpu *vcpu, gfn_t gfn); kvm_pfn_t kvm_vcpu_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn); +int kvm_vcpu_map(struct kvm_vcpu *vcpu, gpa_t gpa, struct kvm_host_map *map); struct page *kvm_vcpu_gfn_to_page(struct kvm_vcpu *vcpu, gfn_t gfn); +void kvm_vcpu_unmap(struct kvm_vcpu *vcpu, struct kvm_host_map *map, bool dirty); unsigned long kvm_vcpu_gfn_to_hva(struct kvm_vcpu *vcpu, gfn_t gfn); unsigned long kvm_vcpu_gfn_to_hva_prot(struct kvm_vcpu *vcpu, gfn_t gfn, bool *writable); int kvm_vcpu_read_guest_page(struct kvm_vcpu *vcpu, gfn_t gfn, void *data, int offset, -- cgit v1.2.3 From 8c16567d867ed3185a67d8560e051090486d3ff1 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 30 Apr 2019 14:42:39 -0400 Subject: block: switch all files cleared marked as GPLv2 to SPDX tags All these files have some form of the usual GPLv2 boilerplate. Switch them to use SPDX tags instead. Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/bio.h | 15 +-------------- include/linux/bvec.h | 15 +-------------- include/linux/sed-opal.h | 10 +--------- 3 files changed, 3 insertions(+), 37 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bio.h b/include/linux/bio.h index 077cecdf9437..ea73df36529a 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -1,19 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2001 Jens Axboe - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public Licens - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111- */ #ifndef __LINUX_BIO_H #define __LINUX_BIO_H diff --git a/include/linux/bvec.h b/include/linux/bvec.h index a4811410e4fc..545a480528e0 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * bvec iterator * * Copyright (C) 2001 Ming Lei - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public Licens - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111- */ #ifndef __LINUX_BVEC_ITER_H #define __LINUX_BVEC_ITER_H diff --git a/include/linux/sed-opal.h b/include/linux/sed-opal.h index 04b124fca51e..3e76b6d7d97f 100644 --- a/include/linux/sed-opal.h +++ b/include/linux/sed-opal.h @@ -1,18 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright © 2016 Intel Corporation * * Authors: * Rafael Antognolli * Scott Bauer - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef LINUX_OPAL_H -- cgit v1.2.3 From a497ee34a45d58e9b978d0fa5c4b25d4813eb350 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 30 Apr 2019 14:42:40 -0400 Subject: block: switch all files cleared marked as GPLv2 or later to SPDX tags All these files have some form of the usual GPLv2 or later boilerplate. Switch them to use SPDX tags instead. Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/bsg-lib.h | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bsg-lib.h b/include/linux/bsg-lib.h index 7f14517a559b..960988d42f77 100644 --- a/include/linux/bsg-lib.h +++ b/include/linux/bsg-lib.h @@ -1,24 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * BSG helper library * * Copyright (C) 2008 James Smart, Emulex Corporation * Copyright (C) 2011 Red Hat, Inc. All rights reserved. * Copyright (C) 2011 Mike Christie - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ #ifndef _BLK_BSG_ #define _BLK_BSG_ -- cgit v1.2.3 From 6353599813158c02227d8086acb20e07f3306452 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 30 Apr 2019 14:42:42 -0400 Subject: block: add a SPDX tag to blk-mq-rdma.h This file has no copyright notice, but was added as part of a commit adding another file using the default kernel GPLv2 license. Add a matching SPDX tag. Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/blk-mq-rdma.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/blk-mq-rdma.h b/include/linux/blk-mq-rdma.h index 7b6ecf9ac4c3..5cc5f0f36218 100644 --- a/include/linux/blk-mq-rdma.h +++ b/include/linux/blk-mq-rdma.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_BLK_MQ_RDMA_H #define _LINUX_BLK_MQ_RDMA_H -- cgit v1.2.3 From 12adb7a013e318de553ccee4a006a718667972b3 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 30 Apr 2019 13:56:16 -0400 Subject: block: remove the unused blk_queue_dma_pad function Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 99aa98f60b9e..bd3e3f09bfa0 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1069,7 +1069,6 @@ extern int bdev_stack_limits(struct queue_limits *t, struct block_device *bdev, extern void disk_stack_limits(struct gendisk *disk, struct block_device *bdev, sector_t offset); extern void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b); -extern void blk_queue_dma_pad(struct request_queue *, unsigned int); extern void blk_queue_update_dma_pad(struct request_queue *, unsigned int); extern int blk_queue_dma_drain(struct request_queue *q, dma_drain_needed_fn *dma_drain_needed, -- cgit v1.2.3 From 905c30477f4d88ea535c6970c50bbb159d733249 Mon Sep 17 00:00:00 2001 From: Grygorii Strashko Date: Tue, 30 Apr 2019 15:42:17 +0530 Subject: firmware: ti_sci: Add support to get TISCI handle using of_phandle TISCI has been updated to have support for Resource management(like interrupts etc..). And there can be multiple device instances of a resource type in a SoC. So every driver corresponding to a resource type should get a TISCI handle so that it can make TISCI calls. And each DT node corresponding to a device should exist under its corresponding bus node as per the SoC architecture. But existing apis in TISCI library assumes that all TISCI users are child nodes of TISCI. Which is not true in the above case. So introduce (devm_)ti_sci_get_by_phandle() apis that can be used by TISCI users to get TISCI handle using of phandle property. Signed-off-by: Grygorii Strashko Signed-off-by: Lokesh Vutla Acked-by: Nishanth Menon Signed-off-by: Marc Zyngier --- include/linux/soc/ti/ti_sci_protocol.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'include/linux') diff --git a/include/linux/soc/ti/ti_sci_protocol.h b/include/linux/soc/ti/ti_sci_protocol.h index 18435e5c6364..515587e9d373 100644 --- a/include/linux/soc/ti/ti_sci_protocol.h +++ b/include/linux/soc/ti/ti_sci_protocol.h @@ -217,6 +217,10 @@ struct ti_sci_handle { const struct ti_sci_handle *ti_sci_get_handle(struct device *dev); int ti_sci_put_handle(const struct ti_sci_handle *handle); const struct ti_sci_handle *devm_ti_sci_get_handle(struct device *dev); +const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np, + const char *property); +const struct ti_sci_handle *devm_ti_sci_get_by_phandle(struct device *dev, + const char *property); #else /* CONFIG_TI_SCI_PROTOCOL */ @@ -236,6 +240,19 @@ const struct ti_sci_handle *devm_ti_sci_get_handle(struct device *dev) return ERR_PTR(-EINVAL); } +static inline +const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np, + const char *property) +{ + return ERR_PTR(-EINVAL); +} + +static inline +const struct ti_sci_handle *devm_ti_sci_get_by_phandle(struct device *dev, + const char *property) +{ + return ERR_PTR(-EINVAL); +} #endif /* CONFIG_TI_SCI_PROTOCOL */ #endif /* __TISCI_PROTOCOL_H */ -- cgit v1.2.3 From 9c19fb6895bef1c350087e57afebc0847adf960d Mon Sep 17 00:00:00 2001 From: Lokesh Vutla Date: Tue, 30 Apr 2019 15:42:18 +0530 Subject: firmware: ti_sci: Add support for RM core ops TISCI provides support for getting the resources(IRQ, RING etc..) assigned to a specific device. These resources can be handled by the client and in turn sends TISCI cmd to configure the resources. It is very important that client should keep track on usage of these resources. Add support for TISCI commands to get resource ranges. Signed-off-by: Lokesh Vutla Signed-off-by: Peter Ujfalusi Acked-by: Nishanth Menon Signed-off-by: Marc Zyngier --- include/linux/soc/ti/ti_sci_protocol.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'include/linux') diff --git a/include/linux/soc/ti/ti_sci_protocol.h b/include/linux/soc/ti/ti_sci_protocol.h index 515587e9d373..0c92a922db6a 100644 --- a/include/linux/soc/ti/ti_sci_protocol.h +++ b/include/linux/soc/ti/ti_sci_protocol.h @@ -192,15 +192,42 @@ struct ti_sci_clk_ops { u64 *current_freq); }; +/** + * struct ti_sci_rm_core_ops - Resource management core operations + * @get_range: Get a range of resources belonging to ti sci host. + * @get_rage_from_shost: Get a range of resources belonging to + * specified host id. + * - s_host: Host processing entity to which the + * resources are allocated + * + * NOTE: for these functions, all the parameters are consolidated and defined + * as below: + * - handle: Pointer to TISCI handle as retrieved by *ti_sci_get_handle + * - dev_id: TISCI device ID. + * - subtype: Resource assignment subtype that is being requested + * from the given device. + * - range_start: Start index of the resource range + * - range_end: Number of resources in the range + */ +struct ti_sci_rm_core_ops { + int (*get_range)(const struct ti_sci_handle *handle, u32 dev_id, + u8 subtype, u16 *range_start, u16 *range_num); + int (*get_range_from_shost)(const struct ti_sci_handle *handle, + u32 dev_id, u8 subtype, u8 s_host, + u16 *range_start, u16 *range_num); +}; + /** * struct ti_sci_ops - Function support for TI SCI * @dev_ops: Device specific operations * @clk_ops: Clock specific operations + * @rm_core_ops: Resource management core operations. */ struct ti_sci_ops { struct ti_sci_core_ops core_ops; struct ti_sci_dev_ops dev_ops; struct ti_sci_clk_ops clk_ops; + struct ti_sci_rm_core_ops rm_core_ops; }; /** -- cgit v1.2.3 From 997b001f6bb2ede3043bdf80b62a5a4dd466d7eb Mon Sep 17 00:00:00 2001 From: Lokesh Vutla Date: Tue, 30 Apr 2019 15:42:19 +0530 Subject: firmware: ti_sci: Add support for IRQ management TISCI abstracts the handling of IRQ routes where interrupt sources are not directly connected to host interrupt controller. Add support for the set of TISCI commands for requesting and releasing IRQs. Signed-off-by: Lokesh Vutla Acked-by: Nishanth Menon Signed-off-by: Marc Zyngier --- include/linux/soc/ti/ti_sci_protocol.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'include/linux') diff --git a/include/linux/soc/ti/ti_sci_protocol.h b/include/linux/soc/ti/ti_sci_protocol.h index 0c92a922db6a..d0bc4123232e 100644 --- a/include/linux/soc/ti/ti_sci_protocol.h +++ b/include/linux/soc/ti/ti_sci_protocol.h @@ -217,17 +217,43 @@ struct ti_sci_rm_core_ops { u16 *range_start, u16 *range_num); }; +/** + * struct ti_sci_rm_irq_ops: IRQ management operations + * @set_irq: Set an IRQ route between the requested source + * and destination + * @set_event_map: Set an Event based peripheral irq to Interrupt + * Aggregator. + * @free_irq: Free an an IRQ route between the requested source + * destination. + * @free_event_map: Free an event based peripheral irq to Interrupt + * Aggregator. + */ +struct ti_sci_rm_irq_ops { + int (*set_irq)(const struct ti_sci_handle *handle, u16 src_id, + u16 src_index, u16 dst_id, u16 dst_host_irq); + int (*set_event_map)(const struct ti_sci_handle *handle, u16 src_id, + u16 src_index, u16 ia_id, u16 vint, + u16 global_event, u8 vint_status_bit); + int (*free_irq)(const struct ti_sci_handle *handle, u16 src_id, + u16 src_index, u16 dst_id, u16 dst_host_irq); + int (*free_event_map)(const struct ti_sci_handle *handle, u16 src_id, + u16 src_index, u16 ia_id, u16 vint, + u16 global_event, u8 vint_status_bit); +}; + /** * struct ti_sci_ops - Function support for TI SCI * @dev_ops: Device specific operations * @clk_ops: Clock specific operations * @rm_core_ops: Resource management core operations. + * @rm_irq_ops: IRQ management specific operations */ struct ti_sci_ops { struct ti_sci_core_ops core_ops; struct ti_sci_dev_ops dev_ops; struct ti_sci_clk_ops clk_ops; struct ti_sci_rm_core_ops rm_core_ops; + struct ti_sci_rm_irq_ops rm_irq_ops; }; /** -- cgit v1.2.3 From 032a1ec549a79711078d26b6bcbba9d435822059 Mon Sep 17 00:00:00 2001 From: Lokesh Vutla Date: Tue, 30 Apr 2019 15:42:21 +0530 Subject: firmware: ti_sci: Add helper apis to manage resources Each resource with in the device can be uniquely identified as defined by TISCI. Since this is generic across the devices, resource allocation also can be made generic instead of each client driver handling the resource. So add helper apis to manage the resource. Signed-off-by: Lokesh Vutla Acked-by: Nishanth Menon Signed-off-by: Marc Zyngier --- include/linux/soc/ti/ti_sci_protocol.h | 54 ++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) (limited to 'include/linux') diff --git a/include/linux/soc/ti/ti_sci_protocol.h b/include/linux/soc/ti/ti_sci_protocol.h index d0bc4123232e..568722a041bf 100644 --- a/include/linux/soc/ti/ti_sci_protocol.h +++ b/include/linux/soc/ti/ti_sci_protocol.h @@ -266,6 +266,33 @@ struct ti_sci_handle { struct ti_sci_ops ops; }; +#define TI_SCI_RESOURCE_NULL 0xffff + +/** + * struct ti_sci_resource_desc - Description of TI SCI resource instance range. + * @start: Start index of the resource. + * @num: Number of resources. + * @res_map: Bitmap to manage the allocation of these resources. + */ +struct ti_sci_resource_desc { + u16 start; + u16 num; + unsigned long *res_map; +}; + +/** + * struct ti_sci_resource - Structure representing a resource assigned + * to a device. + * @sets: Number of sets available from this resource type + * @lock: Lock to guard the res map in each set. + * @desc: Array of resource descriptors. + */ +struct ti_sci_resource { + u16 sets; + raw_spinlock_t lock; + struct ti_sci_resource_desc *desc; +}; + #if IS_ENABLED(CONFIG_TI_SCI_PROTOCOL) const struct ti_sci_handle *ti_sci_get_handle(struct device *dev); int ti_sci_put_handle(const struct ti_sci_handle *handle); @@ -274,6 +301,12 @@ const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np, const char *property); const struct ti_sci_handle *devm_ti_sci_get_by_phandle(struct device *dev, const char *property); +u16 ti_sci_get_free_resource(struct ti_sci_resource *res); +void ti_sci_release_resource(struct ti_sci_resource *res, u16 id); +u32 ti_sci_get_num_resources(struct ti_sci_resource *res); +struct ti_sci_resource * +devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle, + struct device *dev, u32 dev_id, char *of_prop); #else /* CONFIG_TI_SCI_PROTOCOL */ @@ -306,6 +339,27 @@ const struct ti_sci_handle *devm_ti_sci_get_by_phandle(struct device *dev, { return ERR_PTR(-EINVAL); } + +static inline u16 ti_sci_get_free_resource(struct ti_sci_resource *res) +{ + return TI_SCI_RESOURCE_NULL; +} + +static inline void ti_sci_release_resource(struct ti_sci_resource *res, u16 id) +{ +} + +static inline u32 ti_sci_get_num_resources(struct ti_sci_resource *res) +{ + return 0; +} + +static inline struct ti_sci_resource * +devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle, + struct device *dev, u32 dev_id, char *of_prop) +{ + return ERR_PTR(-EINVAL); +} #endif /* CONFIG_TI_SCI_PROTOCOL */ #endif /* __TISCI_PROTOCOL_H */ -- cgit v1.2.3 From 2bd1298ac17777525a41c8425521f569e412df14 Mon Sep 17 00:00:00 2001 From: Lokesh Vutla Date: Tue, 30 Apr 2019 15:42:22 +0530 Subject: genirq: Introduce irq_chip_{request,release}_resource_parent() apis Introduce irq_chip_{request,release}_resource_parent() apis so that these can be used in hierarchical irqchips. Signed-off-by: Lokesh Vutla Signed-off-by: Marc Zyngier --- include/linux/irq.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/irq.h b/include/linux/irq.h index 7ae8de5ad0f2..fb301cf29148 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -625,6 +625,8 @@ extern int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on); extern int irq_chip_set_vcpu_affinity_parent(struct irq_data *data, void *vcpu_info); extern int irq_chip_set_type_parent(struct irq_data *data, unsigned int type); +extern int irq_chip_request_resources_parent(struct irq_data *data); +extern void irq_chip_release_resources_parent(struct irq_data *data); #endif /* Handling of unhandled and spurious interrupts: */ -- cgit v1.2.3 From 49b323157bf1e70bfb3114a463d340399906c43a Mon Sep 17 00:00:00 2001 From: Lokesh Vutla Date: Tue, 30 Apr 2019 15:42:28 +0530 Subject: soc: ti: Add MSI domain bus support for Interrupt Aggregator With the system coprocessor managing the range allocation of the inputs to Interrupt Aggregator, it is difficult to represent the device IRQs from DT. The suggestion is to use MSI in such cases where devices wants to allocate and group interrupts dynamically. Create a MSI domain bus layer that allocates and frees MSIs for a device. APIs that are implemented: - ti_sci_inta_msi_create_irq_domain() that creates a MSI domain - ti_sci_inta_msi_domain_alloc_irqs() that creates MSIs for the specified device and resource. - ti_sci_inta_msi_domain_free_irqs() frees the irqs attached to the device. - ti_sci_inta_msi_get_virq() for getting the virq attached to a specific event. Signed-off-by: Lokesh Vutla Signed-off-by: Marc Zyngier --- include/linux/irqdomain.h | 1 + include/linux/msi.h | 10 ++++++++++ include/linux/soc/ti/ti_sci_inta_msi.h | 23 +++++++++++++++++++++++ 3 files changed, 34 insertions(+) create mode 100644 include/linux/soc/ti/ti_sci_inta_msi.h (limited to 'include/linux') diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 61706b430907..07ec8b390161 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -82,6 +82,7 @@ enum irq_domain_bus_token { DOMAIN_BUS_NEXUS, DOMAIN_BUS_IPI, DOMAIN_BUS_FSL_MC_MSI, + DOMAIN_BUS_TI_SCI_INTA_MSI, }; /** diff --git a/include/linux/msi.h b/include/linux/msi.h index 7e9b81c3b50d..7c28762851a3 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -47,6 +47,14 @@ struct fsl_mc_msi_desc { u16 msi_index; }; +/** + * ti_sci_inta_msi_desc - TISCI based INTA specific msi descriptor data + * @dev_index: TISCI device index + */ +struct ti_sci_inta_msi_desc { + u16 dev_index; +}; + /** * struct msi_desc - Descriptor structure for MSI based interrupts * @list: List head for management @@ -68,6 +76,7 @@ struct fsl_mc_msi_desc { * @mask_base: [PCI MSI-X] Mask register base address * @platform: [platform] Platform device specific msi descriptor data * @fsl_mc: [fsl-mc] FSL MC device specific msi descriptor data + * @inta: [INTA] TISCI based INTA specific msi descriptor data */ struct msi_desc { /* Shared device/bus type independent data */ @@ -106,6 +115,7 @@ struct msi_desc { */ struct platform_msi_desc platform; struct fsl_mc_msi_desc fsl_mc; + struct ti_sci_inta_msi_desc inta; }; }; diff --git a/include/linux/soc/ti/ti_sci_inta_msi.h b/include/linux/soc/ti/ti_sci_inta_msi.h new file mode 100644 index 000000000000..11fb5048f5f6 --- /dev/null +++ b/include/linux/soc/ti/ti_sci_inta_msi.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Texas Instruments' K3 TI SCI INTA MSI helper + * + * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/ + * Lokesh Vutla + */ + +#ifndef __INCLUDE_LINUX_TI_SCI_INTA_MSI_H +#define __INCLUDE_LINUX_TI_SCI_INTA_MSI_H + +#include +#include + +struct irq_domain +*ti_sci_inta_msi_create_irq_domain(struct fwnode_handle *fwnode, + struct msi_domain_info *info, + struct irq_domain *parent); +int ti_sci_inta_msi_domain_alloc_irqs(struct device *dev, + struct ti_sci_resource *res); +unsigned int ti_sci_inta_msi_get_virq(struct device *dev, u32 index); +void ti_sci_inta_msi_domain_free_irqs(struct device *dev); +#endif /* __INCLUDE_LINUX_IRQCHIP_TI_SCI_INTA_H */ -- cgit v1.2.3 From df0db3ecdb8fc942e9d812558b8e15ecd3e050b1 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher Date: Tue, 30 Apr 2019 08:45:34 -0700 Subject: iomap: Add a page_prepare callback Move the page_done callback into a separate iomap_page_ops structure and add a page_prepare calback to be called before the next page is written to. In gfs2, we'll want to start a transaction in page_prepare and end it in page_done. Other filesystems that implement data journaling will require the same kind of mechanism. Signed-off-by: Andreas Gruenbacher Reviewed-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- include/linux/iomap.h | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iomap.h b/include/linux/iomap.h index 0fefb5455bda..2103b94cb1bf 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -53,6 +53,8 @@ struct vm_fault; */ #define IOMAP_NULL_ADDR -1ULL /* addr is not valid */ +struct iomap_page_ops; + struct iomap { u64 addr; /* disk offset of mapping, bytes */ loff_t offset; /* file offset of mapping, bytes */ @@ -63,12 +65,22 @@ struct iomap { struct dax_device *dax_dev; /* dax_dev for dax operations */ void *inline_data; void *private; /* filesystem private */ + const struct iomap_page_ops *page_ops; +}; - /* - * Called when finished processing a page in the mapping returned in - * this iomap. At least for now this is only supported in the buffered - * write path. - */ +/* + * When a filesystem sets page_ops in an iomap mapping it returns, page_prepare + * and page_done will be called for each page written to. This only applies to + * buffered writes as unbuffered writes will not typically have pages + * associated with them. + * + * When page_prepare succeeds, page_done will always be called to do any + * cleanup work necessary. In that page_done call, @page will be NULL if the + * associated page could not be obtained. + */ +struct iomap_page_ops { + int (*page_prepare)(struct inode *inode, loff_t pos, unsigned len, + struct iomap *iomap); void (*page_done)(struct inode *inode, loff_t pos, unsigned copied, struct page *page, struct iomap *iomap); }; -- cgit v1.2.3 From 923abb9d797ba078f4e9eb3734dd71be5f567a2a Mon Sep 17 00:00:00 2001 From: Gal Pressman Date: Wed, 1 May 2019 13:48:13 +0300 Subject: RDMA/core: Introduce RDMA subsystem ibdev_* print functions Similarly to dev/netdev/etc printk helpers, add standard printk helpers for the RDMA subsystem. Example output: efa 0000:00:06.0 efa_0: Hello World! efa_0: Hello World! (no parent device set) (NULL ib_device): Hello World! (ibdev is NULL) Cc: Jason Baron Suggested-by: Jason Gunthorpe Suggested-by: Leon Romanovsky Signed-off-by: Gal Pressman Reviewed-by: Leon Romanovsky Reviewed-by: Shiraz Saleem Reviewed-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- include/linux/dynamic_debug.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux') diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h index c2be029b9b53..6c809440f319 100644 --- a/include/linux/dynamic_debug.h +++ b/include/linux/dynamic_debug.h @@ -71,6 +71,13 @@ void __dynamic_netdev_dbg(struct _ddebug *descriptor, const struct net_device *dev, const char *fmt, ...); +struct ib_device; + +extern __printf(3, 4) +void __dynamic_ibdev_dbg(struct _ddebug *descriptor, + const struct ib_device *ibdev, + const char *fmt, ...); + #define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \ static struct _ddebug __aligned(8) \ __attribute__((section("__verbose"))) name = { \ @@ -154,6 +161,10 @@ void __dynamic_netdev_dbg(struct _ddebug *descriptor, _dynamic_func_call(fmt, __dynamic_netdev_dbg, \ dev, fmt, ##__VA_ARGS__) +#define dynamic_ibdev_dbg(dev, fmt, ...) \ + _dynamic_func_call(fmt, __dynamic_ibdev_dbg, \ + dev, fmt, ##__VA_ARGS__) + #define dynamic_hex_dump(prefix_str, prefix_type, rowsize, \ groupsize, buf, len, ascii) \ _dynamic_func_call_no_desc(__builtin_constant_p(prefix_str) ? prefix_str : "hexdump", \ -- cgit v1.2.3 From 8425c41d1ef762cc15d9501d7117f009a79f3fe9 Mon Sep 17 00:00:00 2001 From: Esben Haabendal Date: Tue, 30 Apr 2019 09:17:49 +0200 Subject: net: ll_temac: Extend support to non-device-tree platforms Support initialization with platdata, so the driver can be used on non-device-tree platforms. For currently supported device-tree platforms, the driver should behave as before. Signed-off-by: Esben Haabendal Signed-off-by: David S. Miller --- include/linux/platform_data/xilinx-ll-temac.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 include/linux/platform_data/xilinx-ll-temac.h (limited to 'include/linux') diff --git a/include/linux/platform_data/xilinx-ll-temac.h b/include/linux/platform_data/xilinx-ll-temac.h new file mode 100644 index 000000000000..82e2f80648b0 --- /dev/null +++ b/include/linux/platform_data/xilinx-ll-temac.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LINUX_XILINX_LL_TEMAC_H +#define __LINUX_XILINX_LL_TEMAC_H + +#include +#include + +struct ll_temac_platform_data { + bool txcsum; /* Enable/disable TX checksum */ + bool rxcsum; /* Enable/disable RX checksum */ + u8 mac_addr[ETH_ALEN]; /* MAC address (6 bytes) */ + /* Clock frequency for input to MDIO clock generator */ + u32 mdio_clk_freq; + unsigned long long mdio_bus_id; /* Unique id for MDIO bus */ + int phy_addr; /* Address of the PHY to connect to */ + phy_interface_t phy_interface; /* PHY interface mode */ +}; + +#endif /* __LINUX_XILINX_LL_TEMAC_H */ -- cgit v1.2.3 From a3246dc41aa3c9d799478ccc8dac5d19c509a923 Mon Sep 17 00:00:00 2001 From: Esben Haabendal Date: Tue, 30 Apr 2019 09:17:51 +0200 Subject: net: ll_temac: Add support for non-native register endianness Replace the powerpc specific MMIO register access functions with the generic big-endian mmio access functions, and add support for little-endian access depending on configuration. Big-endian access is maintained as the default, but little-endian can be configured in device-tree binding or in platform data. The temac_ior()/temac_iow() functions are replaced with macro wrappers to avoid modifying existing code more than necessary. Signed-off-by: Esben Haabendal Signed-off-by: David S. Miller --- include/linux/platform_data/xilinx-ll-temac.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/xilinx-ll-temac.h b/include/linux/platform_data/xilinx-ll-temac.h index 82e2f80648b0..af87927abab3 100644 --- a/include/linux/platform_data/xilinx-ll-temac.h +++ b/include/linux/platform_data/xilinx-ll-temac.h @@ -14,6 +14,8 @@ struct ll_temac_platform_data { unsigned long long mdio_bus_id; /* Unique id for MDIO bus */ int phy_addr; /* Address of the PHY to connect to */ phy_interface_t phy_interface; /* PHY interface mode */ + bool reg_little_endian; /* Little endian TEMAC register access */ + bool dma_little_endian; /* Little endian DMA register access */ }; #endif /* __LINUX_XILINX_LL_TEMAC_H */ -- cgit v1.2.3 From f14f5c11f051ca4a41e65017d94408e5e702ba9d Mon Sep 17 00:00:00 2001 From: Esben Haabendal Date: Tue, 30 Apr 2019 09:17:54 +0200 Subject: net: ll_temac: Support indirect_mutex share within TEMAC IP Indirect register access goes through a DCR bus bridge, which allows only one outstanding transaction. And to make matters worse, each TEMAC IP block contains two Ethernet interfaces, and although they seem to have separate registers for indirect access, they actually share the registers. Or to be more specific, MSW, LSW and CTL registers are physically shared between Ethernet interfaces in same TEMAC IP, with RDY register being (almost) specificic to the Ethernet interface. The 0x10000 bit in RDY reflects combined bus ready state though. So we need to take care to synchronize not only within a single device, but also between devices in same TEMAC IP. This commit allows to do that with legacy platform devices. For OF devices, the xlnx,compound parent of the temac node should be used to find siblings, and setup a shared indirect_mutex between them. I will leave this work to somebody else, as I don't have hardware to test that. No regression is introduced by that, as before this commit using two Ethernet interfaces in same TEMAC block is simply broken. Signed-off-by: Esben Haabendal Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- include/linux/platform_data/xilinx-ll-temac.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/xilinx-ll-temac.h b/include/linux/platform_data/xilinx-ll-temac.h index af87927abab3..b0b8238a9b7d 100644 --- a/include/linux/platform_data/xilinx-ll-temac.h +++ b/include/linux/platform_data/xilinx-ll-temac.h @@ -16,6 +16,12 @@ struct ll_temac_platform_data { phy_interface_t phy_interface; /* PHY interface mode */ bool reg_little_endian; /* Little endian TEMAC register access */ bool dma_little_endian; /* Little endian DMA register access */ + /* Pre-initialized mutex to use for synchronizing indirect + * register access. When using both interfaces of a single + * TEMAC IP block, the same mutex should be passed here, as + * they share the same DCR bus bridge. + */ + struct mutex *indirect_mutex; }; #endif /* __LINUX_XILINX_LL_TEMAC_H */ -- cgit v1.2.3 From 7e97a194aca03c6ff86f84e46e196f5c9ed5c32c Mon Sep 17 00:00:00 2001 From: Esben Haabendal Date: Tue, 30 Apr 2019 09:17:58 +0200 Subject: net: ll_temac: Allow configuration of IRQ coalescing This allows custom setup of IRQ coalescing for platforms using legacy platform_device. The irq timeout and count parameters can be used for tuning cpu load vs. latency. I have maintained the 0x00000400 bit in TX_CHNL_CTRL. It is specified as unused in the documentation I have available. It does not make any difference in the hardware I have available, so it is left in to not risk breaking other platforms where it might be used. Signed-off-by: Esben Haabendal Signed-off-by: David S. Miller --- include/linux/platform_data/xilinx-ll-temac.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/xilinx-ll-temac.h b/include/linux/platform_data/xilinx-ll-temac.h index b0b8238a9b7d..368530f98176 100644 --- a/include/linux/platform_data/xilinx-ll-temac.h +++ b/include/linux/platform_data/xilinx-ll-temac.h @@ -22,6 +22,11 @@ struct ll_temac_platform_data { * they share the same DCR bus bridge. */ struct mutex *indirect_mutex; + /* DMA channel control setup */ + u8 tx_irq_timeout; /* TX Interrupt Delay Time-out */ + u8 tx_irq_count; /* TX Interrupt Coalescing Threshold Count */ + u8 rx_irq_timeout; /* RX Interrupt Delay Time-out */ + u8 rx_irq_count; /* RX Interrupt Coalescing Threshold Count */ }; #endif /* __LINUX_XILINX_LL_TEMAC_H */ -- cgit v1.2.3 From 440868661f36071886ed360d91de83bd67c73b4f Mon Sep 17 00:00:00 2001 From: Phong Tran Date: Tue, 30 Apr 2019 21:56:24 +0700 Subject: of: fix clang -Wunsequenced for be32_to_cpu() Now, make the loop explicit to avoid clang warning. ./include/linux/of.h:238:37: warning: multiple unsequenced modifications to 'cell' [-Wunsequenced] r = (r << 32) | be32_to_cpu(*(cell++)); ^~ ./include/linux/byteorder/generic.h:95:21: note: expanded from macro 'be32_to_cpu' ^ ./include/uapi/linux/byteorder/little_endian.h:40:59: note: expanded from macro '__be32_to_cpu' ^ ./include/uapi/linux/swab.h:118:21: note: expanded from macro '__swab32' ___constant_swab32(x) : \ ^ ./include/uapi/linux/swab.h:18:12: note: expanded from macro '___constant_swab32' (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \ ^ Signed-off-by: Phong Tran Reported-by: Nick Desaulniers Link: https://github.com/ClangBuiltLinux/linux/issues/460 Suggested-by: David Laight Reviewed-by: Nick Desaulniers Cc: stable@vger.kernel.org [robh: fix up whitespace] Signed-off-by: Rob Herring --- include/linux/of.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/of.h b/include/linux/of.h index 28797e1a9982..0cf857012f11 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -234,8 +234,8 @@ extern struct device_node *of_find_all_nodes(struct device_node *prev); static inline u64 of_read_number(const __be32 *cell, int size) { u64 r = 0; - while (size--) - r = (r << 32) | be32_to_cpu(*(cell++)); + for (; size--; cell++) + r = (r << 32) | be32_to_cpu(*cell); return r; } -- cgit v1.2.3 From 91a40a48d52d13fbde3239d5839335cabd9a4eae Mon Sep 17 00:00:00 2001 From: Saeed Mahameed Date: Wed, 1 May 2019 03:21:05 +0000 Subject: net/mlx5: Fix broken hca cap offset The cited commit broke the offsets of hca cap struct, fix it. While at it, cleanup a white space introduced by the same commit. Fixes: b169e64a2444 ("net/mlx5: Geneve, Add flow table capabilities for Geneve decap with TLV options") Reported-by: Qian Cai Cc: Yevgeny Kliteynik Signed-off-by: Saeed Mahameed --- include/linux/mlx5/mlx5_ifc.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 6a7fc18a9fe3..6b2e6b710ac0 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -1265,7 +1265,7 @@ struct mlx5_ifc_cmd_hca_cap_bits { u8 max_geneve_tlv_option_data_len[0x5]; u8 reserved_at_570[0x10]; - u8 reserved_at_580[0x1c]; + u8 reserved_at_580[0x3c]; u8 mini_cqe_resp_stride_index[0x1]; u8 cqe_128_always[0x1]; u8 cqe_compression_128[0x1]; @@ -9566,7 +9566,7 @@ struct mlx5_ifc_sw_icm_bits { u8 sw_icm_start_addr[0x40]; u8 reserved_at_c0[0x140]; -}; +}; struct mlx5_ifc_geneve_tlv_option_bits { u8 modify_field_select[0x40]; -- cgit v1.2.3 From a708fb7b1f8dcc7a8ed949839958cd5d812dd939 Mon Sep 17 00:00:00 2001 From: Erez Alfasi Date: Thu, 21 Mar 2019 15:02:13 +0200 Subject: net/mlx5e: ethtool, Add support for EEPROM high pages query Add the support to read additional EEPROM information from high pages. Information for modules such as SFF-8436 and SFF-8636: 1) Application select table 2) User writable EEPROM 3) Thresholds and alarms Signed-off-by: Erez Alfasi Signed-off-by: Saeed Mahameed --- include/linux/mlx5/port.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/port.h b/include/linux/mlx5/port.h index 64e78394fc9c..de9a272c9f3d 100644 --- a/include/linux/mlx5/port.h +++ b/include/linux/mlx5/port.h @@ -60,6 +60,7 @@ enum mlx5_an_status { #define MLX5_I2C_ADDR_LOW 0x50 #define MLX5_I2C_ADDR_HIGH 0x51 #define MLX5_EEPROM_PAGE_LENGTH 256 +#define MLX5_EEPROM_HIGH_PAGE_LENGTH 128 enum mlx5e_link_mode { MLX5E_1000BASE_CX_SGMII = 0, -- cgit v1.2.3 From c9bbfb378bc35fcd0b51e4a8950bd50447f39832 Mon Sep 17 00:00:00 2001 From: Bodong Wang Date: Fri, 12 Apr 2019 16:14:03 -0500 Subject: net/mlx5: Remove unused mlx5_query_nic_vport_vlans mlx5_query_nic_vport_vlans() is not used anymore. Hence remove it. This patch doesn't change any functionality. Signed-off-by: Bodong Wang Reviewed-by: Parav Pandit Signed-off-by: Saeed Mahameed --- include/linux/mlx5/vport.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/vport.h b/include/linux/mlx5/vport.h index 0eef548b9946..3d1c6cdbbba7 100644 --- a/include/linux/mlx5/vport.h +++ b/include/linux/mlx5/vport.h @@ -118,10 +118,6 @@ int mlx5_modify_nic_vport_promisc(struct mlx5_core_dev *mdev, int promisc_uc, int promisc_mc, int promisc_all); -int mlx5_query_nic_vport_vlans(struct mlx5_core_dev *dev, - u16 vport, - u16 vlans[], - int *size); int mlx5_modify_nic_vport_vlans(struct mlx5_core_dev *dev, u16 vlans[], int list_size); -- cgit v1.2.3 From 6f4e02193c9a9ea54dd3151cf97489fa787cd0e6 Mon Sep 17 00:00:00 2001 From: Bodong Wang Date: Thu, 18 Apr 2019 18:24:15 -0500 Subject: net/mlx5: E-Switch, Use atomic rep state to serialize state change When the state of rep was introduced, it was also designed to prevent duplicate unloading of the same rep. Considering the following two flows when an eswitch manager is at switchdev mode with n VF reps loaded. +--------------------------------------+--------------------------------+ | cpu-0 | cpu-1 | | -------- | -------- | | mlx5_ib_remove | mlx5_eswitch_disable_sriov | | mlx5_ib_unregister_vport_reps | esw_offloads_cleanup | | mlx5_eswitch_unregister_vport_reps | esw_offloads_unload_all_reps | | __unload_reps_all_vport | __unload_reps_all_vport | +--------------------------------------+--------------------------------+ These two flows will try to unload the same rep. Per original design, once one flow unloads the rep, the state moves to REGISTERED. The 2nd flow will no longer needs to do the unload and bails out. However, as read and write of the state is not atomic, when 1st flow is doing the unload, the state is still LOADED, 2nd flow is able to do the same unload action. Kernel crash will happen. To solve this, driver should do atomic test-and-set for the state. So that only one flow can change the rep state from LOADED to REGISTERED, and proceed to do the actual unloading. Since the state is changing to atomic type, all other read/write should be atomic action as well. Fixes: f121e0ea9586 (net/mlx5: E-Switch, Add state to eswitch vport representors) Signed-off-by: Bodong Wang Reviewed-by: Parav Pandit Reviewed-by: Vu Pham Signed-off-by: Saeed Mahameed --- include/linux/mlx5/eswitch.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/eswitch.h b/include/linux/mlx5/eswitch.h index 96d8435421de..0ca77dd1429c 100644 --- a/include/linux/mlx5/eswitch.h +++ b/include/linux/mlx5/eswitch.h @@ -35,7 +35,7 @@ struct mlx5_eswitch_rep_if { void (*unload)(struct mlx5_eswitch_rep *rep); void *(*get_proto_dev)(struct mlx5_eswitch_rep *rep); void *priv; - u8 state; + atomic_t state; }; struct mlx5_eswitch_rep { -- cgit v1.2.3 From ba6cc85084178e5bce50f6a00411e457c21c47df Mon Sep 17 00:00:00 2001 From: Nick Crews Date: Thu, 18 Apr 2019 10:43:12 -0600 Subject: power: supply: core: Add Standard, Adaptive, and Custom charge types Add "Standard", "Adaptive", and "Custom" modes to the charge_type property, to expand the existing "Trickle" and "Fast" modes. I am adding them in order to support a new Chrome OS device, but these properties should be general enough that they can be used on other devices. The meaning of "Standard" is obvious, but "Adaptive" and "Custom" are more tricky: "Adaptive" means that the charge controller uses some custom algorithm to change the charge type automatically, with no configuration needed. "Custom" means that the charge controller uses the POWER_SUPPLY_PROP_CHARGE_CONTROL_* properties as configuration for some other algorithm. v5 changes: - Split up adding the charge types and adding the POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD properties into two different commits. v4 changes: - Add documentation for the new properties, and add documentation for the the previously missing charge_control_limit and charge_control_limit_max properties. Signed-off-by: Nick Crews Reviewed-by: Enric Balletbo i Serra Signed-off-by: Sebastian Reichel --- include/linux/power_supply.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 2f9c201a54d1..e86e05d8134d 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -40,11 +40,15 @@ enum { POWER_SUPPLY_STATUS_FULL, }; +/* What algorithm is the charger using? */ enum { POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0, POWER_SUPPLY_CHARGE_TYPE_NONE, - POWER_SUPPLY_CHARGE_TYPE_TRICKLE, - POWER_SUPPLY_CHARGE_TYPE_FAST, + POWER_SUPPLY_CHARGE_TYPE_TRICKLE, /* slow speed */ + POWER_SUPPLY_CHARGE_TYPE_FAST, /* fast speed */ + POWER_SUPPLY_CHARGE_TYPE_STANDARD, /* normal speed */ + POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE, /* dynamically adjusted speed */ + POWER_SUPPLY_CHARGE_TYPE_CUSTOM, /* use CHARGE_CONTROL_* props */ }; enum { -- cgit v1.2.3 From 813cab8f3994250e136819ae48fbd1c95d980466 Mon Sep 17 00:00:00 2001 From: Nick Crews Date: Thu, 18 Apr 2019 10:43:13 -0600 Subject: power: supply: core: Add CHARGE_CONTROL_{START_THRESHOLD,END_THRESHOLD} properties Add POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD properties, to expand the existing CHARGE_CONTROL_* properties. I am adding them in order to support a new Chrome OS device, but these properties should be general enough that they can be used on other devices. When the charge_type is "Custom", the charge controller uses the POWER_SUPPLY_PROP_CHARGE_CONTROL_* properties as configuration for some other algorithm. For example, in the use case that I am supporting, this means the battery begins charging when the percentage level drops below POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and charging ceases when the percentage level goes above POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD. v5 changes: - Add the other missing CHARGE_CONTROL_* properties documentation in a separate commit - Split up adding the charge types and adding the POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD properties into two different commits. v4 changes: - Add documentation for the new properties, and add documentation for the the previously missing charge_control_limit and charge_control_limit_max properties. Signed-off-by: Nick Crews Reviewed-by: Enric Balletbo i Serra Signed-off-by: Sebastian Reichel --- include/linux/power_supply.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index e86e05d8134d..d59205170232 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -125,6 +125,8 @@ enum power_supply_property { POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX, POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT, POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX, + POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD, /* in percents! */ + POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD, /* in percents! */ POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN, -- cgit v1.2.3 From 72e6841608b9ce7e04515ed43693b2878936c93a Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Mon, 8 Apr 2019 22:39:49 +0800 Subject: spi: spi-mem: Fix build error without CONFIG_SPI_MEM When building with CONFIG_SPI_MEM is not set gc warns this: drivers/spi/spi-zynq-qspi.o: In function `zynq_qspi_supports_op': spi-zynq-qspi.c:(.text+0x1da): undefined reference to `spi_mem_default_supports_op' Fixes: 67dca5e580f1 ("spi: spi-mem: Add support for Zynq QSPI controller") Signed-off-by: YueHaibing Signed-off-by: Mark Brown --- include/linux/spi/spi-mem.h | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index c845cd6e22ba..1941b845aa15 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -295,6 +295,10 @@ int spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr, void spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr, const struct spi_mem_op *op, struct sg_table *sg); + +bool spi_mem_default_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op); + #else static inline int spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr, @@ -310,6 +314,13 @@ spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr, struct sg_table *sg) { } + +bool spi_mem_default_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op) +{ + return false; +} + #endif /* CONFIG_SPI_MEM */ int spi_mem_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op); @@ -341,9 +352,6 @@ int spi_mem_driver_register_with_owner(struct spi_mem_driver *drv, void spi_mem_driver_unregister(struct spi_mem_driver *drv); -bool spi_mem_default_supports_op(struct spi_mem *mem, - const struct spi_mem_op *op); - #define spi_mem_driver_register(__drv) \ spi_mem_driver_register_with_owner(__drv, THIS_MODULE) -- cgit v1.2.3 From b5881b153bc81d63a5a7e82a35e8a4bdbe1f8c73 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Wed, 10 Apr 2019 21:18:28 +0800 Subject: spi: spi-mem: Make spi_mem_default_supports_op() static inline Stub helper spi_mem_default_supports_op() should be set to static inline Signed-off-by: YueHaibing Signed-off-by: Mark Brown --- include/linux/spi/spi-mem.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index 1941b845aa15..af9ff2f0f1b2 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -315,6 +315,7 @@ spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr, { } +static inline bool spi_mem_default_supports_op(struct spi_mem *mem, const struct spi_mem_op *op) { -- cgit v1.2.3 From 937e6d756422637eeb212c645ded69569a67fabc Mon Sep 17 00:00:00 2001 From: Sowjanya Komatineni Date: Mon, 15 Apr 2019 14:30:27 -0700 Subject: spi: expand mode support This patch changes mode and mode_bits from u16 to u32 to allow more mode configurations. Signed-off-by: Sowjanya Komatineni Signed-off-by: Mark Brown --- include/linux/spi/spi.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 589f9dc9ac2b..053abd22ad31 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -143,7 +143,7 @@ struct spi_device { u32 max_speed_hz; u8 chip_select; u8 bits_per_word; - u16 mode; + u32 mode; #define SPI_CPHA 0x01 /* clock phase */ #define SPI_CPOL 0x02 /* clock polarity */ #define SPI_MODE_0 (0|0) /* (original MicroWire) */ @@ -443,7 +443,7 @@ struct spi_controller { u16 dma_alignment; /* spi_device.mode flags understood by this controller driver */ - u16 mode_bits; + u32 mode_bits; /* bitmask of supported bits_per_word for transfers */ u32 bits_per_word_mask; @@ -1291,7 +1291,7 @@ struct spi_board_info { /* mode becomes spi_device.mode, and is essential for chips * where the default of SPI_CS_HIGH = 0 is wrong. */ - u16 mode; + u32 mode; /* ... may need additional spi_device chip config data here. * avoid stuff protocol drivers can set; but include stuff -- cgit v1.2.3 From 1dfbf334f12361ebe6269c5918328b755ee960c7 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Sat, 20 Apr 2019 13:05:59 +0200 Subject: spi: ep93xx: Convert to use CS GPIO descriptors This converts the EP93xx SPI master driver to use GPIO descriptors for chip select handling. EP93xx was using platform data to pass in GPIO lines, by converting all board files to use GPIO descriptor tables the core will look up the GPIO lines from the SPI device in the same manner as for device tree. Signed-off-by: Linus Walleij Signed-off-by: Mark Brown --- include/linux/platform_data/spi-ep93xx.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/spi-ep93xx.h b/include/linux/platform_data/spi-ep93xx.h index eb16c6739ac2..b439f2a896e0 100644 --- a/include/linux/platform_data/spi-ep93xx.h +++ b/include/linux/platform_data/spi-ep93xx.h @@ -6,13 +6,9 @@ struct spi_device; /** * struct ep93xx_spi_info - EP93xx specific SPI descriptor - * @chipselect: array of gpio numbers to use as chip selects - * @num_chipselect: ARRAY_SIZE(chipselect) * @use_dma: use DMA for the transfers */ struct ep93xx_spi_info { - int *chipselect; - int num_chipselect; bool use_dma; }; -- cgit v1.2.3 From fdb0da89f4ba0c74d7d3b9e6f471e96a5766820b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 10 Apr 2019 14:43:44 -0400 Subject: new inode method: ->free_inode() A lot of ->destroy_inode() instances end with call_rcu() of a callback that does RCU-delayed part of freeing. Introduce a new method for doing just that, with saner signature. Rules: ->destroy_inode ->free_inode f g immediate call of f(), RCU-delayed call of g() f NULL immediate call of f(), no RCU-delayed calls NULL g RCU-delayed call of g() NULL NULL RCU-delayed default freeing IOW, NULL ->free_inode gives the same behaviour as now. Note that NULL, NULL is equivalent to NULL, free_inode_nonrcu; we could mandate the latter form, but that would have very little benefit beyond making rules a bit more symmetric. It would break backwards compatibility, require extra boilerplate and expected semantics for (NULL, NULL) pair would have no use whatsoever... Signed-off-by: Al Viro --- include/linux/fs.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/fs.h b/include/linux/fs.h index dd28e7679089..92732286b748 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -694,7 +694,10 @@ struct inode { #ifdef CONFIG_IMA atomic_t i_readcount; /* struct files open RO */ #endif - const struct file_operations *i_fop; /* former ->i_op->default_file_ops */ + union { + const struct file_operations *i_fop; /* former ->i_op->default_file_ops */ + void (*free_inode)(struct inode *); + }; struct file_lock_context *i_flctx; struct address_space i_data; struct list_head i_devices; @@ -1903,6 +1906,7 @@ extern loff_t vfs_dedupe_file_range_one(struct file *src_file, loff_t src_pos, struct super_operations { struct inode *(*alloc_inode)(struct super_block *sb); void (*destroy_inode)(struct inode *); + void (*free_inode)(struct inode *); void (*dirty_inode) (struct inode *, int flags); int (*write_inode) (struct inode *, struct writeback_control *wbc); -- cgit v1.2.3 From dadec066d8fa7da227f623f632ea114690fecaf8 Mon Sep 17 00:00:00 2001 From: Tri Vo Date: Mon, 15 Apr 2019 11:18:33 -0700 Subject: module: add stubs for within_module functions Provide stubs for within_module_core(), within_module_init(), and within_module() to prevent build errors when !CONFIG_MODULES. Suggested-by: Matthew Wilcox Reported-by: Randy Dunlap Reported-by: kbuild test robot Link: https://marc.info/?l=linux-mm&m=155384681109231&w=2 Signed-off-by: Tri Vo Signed-off-by: Jessica Yu --- include/linux/module.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'include/linux') diff --git a/include/linux/module.h b/include/linux/module.h index 3abe8176df98..7e63c340a8bf 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -710,6 +710,23 @@ static inline bool is_module_text_address(unsigned long addr) return false; } +static inline bool within_module_core(unsigned long addr, + const struct module *mod) +{ + return false; +} + +static inline bool within_module_init(unsigned long addr, + const struct module *mod) +{ + return false; +} + +static inline bool within_module(unsigned long addr, const struct module *mod) +{ + return false; +} + /* Get/put a kernel symbol (calls should be symmetric) */ #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak)); &(x); }) #define symbol_put(x) do { } while (0) -- cgit v1.2.3 From 392f10453dd2bfb86b10b7978020f0509a29b919 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Thu, 2 May 2019 16:29:19 +0530 Subject: soundwire: intel: fix SPDX license for header file Some more headers had C++ style SDPX line, fix that and change copyright so that it is consistent with rest of the code in subsystem Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman --- include/linux/soundwire/sdw_intel.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/soundwire/sdw_intel.h b/include/linux/soundwire/sdw_intel.h index 2b9573b8aedd..0848f9d38bcb 100644 --- a/include/linux/soundwire/sdw_intel.h +++ b/include/linux/soundwire/sdw_intel.h @@ -1,5 +1,5 @@ -// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) -// Copyright(c) 2015-17 Intel Corporation. +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ +/* Copyright(c) 2015-17 Intel Corporation. */ #ifndef __SDW_INTEL_H #define __SDW_INTEL_H -- cgit v1.2.3 From 171580f69ebc88370204482464804d94f78f077a Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Thu, 2 May 2019 16:29:18 +0530 Subject: soundwire: fix SPDX license for header files Some more headers had C++ style SDPX line, fix that and change copyright so that it is consistent with rest of the code in subsystem Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman --- include/linux/soundwire/sdw.h | 4 ++-- include/linux/soundwire/sdw_registers.h | 4 ++-- include/linux/soundwire/sdw_type.h | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index df313913e856..d9102af5e26c 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -1,5 +1,5 @@ -// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) -// Copyright(c) 2015-17 Intel Corporation. +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ +/* Copyright(c) 2015-17 Intel Corporation. */ #ifndef __SOUNDWIRE_H #define __SOUNDWIRE_H diff --git a/include/linux/soundwire/sdw_registers.h b/include/linux/soundwire/sdw_registers.h index df472b1ab410..e75b2e3cf93d 100644 --- a/include/linux/soundwire/sdw_registers.h +++ b/include/linux/soundwire/sdw_registers.h @@ -1,5 +1,5 @@ -// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) -// Copyright(c) 2015-17 Intel Corporation. +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ +/* Copyright(c) 2015-17 Intel Corporation. */ #ifndef __SDW_REGISTERS_H #define __SDW_REGISTERS_H diff --git a/include/linux/soundwire/sdw_type.h b/include/linux/soundwire/sdw_type.h index 9fd553e553e9..b7e198a035c9 100644 --- a/include/linux/soundwire/sdw_type.h +++ b/include/linux/soundwire/sdw_type.h @@ -1,5 +1,5 @@ -// SPDX-License-Identifier: GPL-2.0 -// Copyright(c) 2015-17 Intel Corporation. +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright(c) 2015-17 Intel Corporation. */ #ifndef __SOUNDWIRE_TYPES_H #define __SOUNDWIRE_TYPES_H -- cgit v1.2.3 From 51ed743734fa90c215310854d502371adfa63575 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Thu, 2 May 2019 16:29:23 +0530 Subject: soundwire: add argument to function definition Checkpatch warns that function definition of __sdw_register_driver misses argument, so add it WARNING: function definition argument 'struct module *' should also have an identifier name Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman --- include/linux/soundwire/sdw_type.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/soundwire/sdw_type.h b/include/linux/soundwire/sdw_type.h index b7e198a035c9..9c756b5a0dfe 100644 --- a/include/linux/soundwire/sdw_type.h +++ b/include/linux/soundwire/sdw_type.h @@ -11,7 +11,7 @@ extern struct bus_type sdw_bus_type; #define sdw_register_driver(drv) \ __sdw_register_driver(drv, THIS_MODULE) -int __sdw_register_driver(struct sdw_driver *drv, struct module *); +int __sdw_register_driver(struct sdw_driver *drv, struct module *owner); void sdw_unregister_driver(struct sdw_driver *drv); int sdw_slave_modalias(const struct sdw_slave *slave, char *buf, size_t size); -- cgit v1.2.3 From 62f0cec3b0da067ec689edbefea5de61f025f6d6 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Thu, 2 May 2019 16:29:24 +0530 Subject: soundwire: more alignment fixes Found few more issues reported checkpatch on code alignment so fix those as well in the soundwire core. Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman --- include/linux/soundwire/sdw.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index d9102af5e26c..41c49631288a 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -470,14 +470,14 @@ struct sdw_bus_params { struct sdw_slave_ops { int (*read_prop)(struct sdw_slave *sdw); int (*interrupt_callback)(struct sdw_slave *slave, - struct sdw_slave_intr_status *status); + struct sdw_slave_intr_status *status); int (*update_status)(struct sdw_slave *slave, - enum sdw_slave_status status); + enum sdw_slave_status status); int (*bus_config)(struct sdw_slave *slave, - struct sdw_bus_params *params); + struct sdw_bus_params *params); int (*port_prep)(struct sdw_slave *slave, - struct sdw_prepare_ch *prepare_ch, - enum sdw_port_prep_ops pre_ops); + struct sdw_prepare_ch *prepare_ch, + enum sdw_port_prep_ops pre_ops); }; /** -- cgit v1.2.3 From 1215daee56edc1640997b439506b2006e47574c0 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Thu, 2 May 2019 16:29:25 +0530 Subject: soundwire: intel: more alignment fixes Found few more issues reported checkpatch on code alignment so fix those as well in the intel module. Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman --- include/linux/soundwire/sdw_intel.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/soundwire/sdw_intel.h b/include/linux/soundwire/sdw_intel.h index 0848f9d38bcb..4d70da45363d 100644 --- a/include/linux/soundwire/sdw_intel.h +++ b/include/linux/soundwire/sdw_intel.h @@ -11,7 +11,7 @@ */ struct sdw_intel_ops { int (*config_stream)(void *arg, void *substream, - void *dai, void *hw_params, int stream_num); + void *dai, void *hw_params, int stream_num); }; /** -- cgit v1.2.3 From 1824dd8035fceb337801bed76515eceda8d7af6b Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Thu, 2 May 2019 16:29:28 +0530 Subject: soundwire: wrap macro argument in parenthesis macro argument should be inside a parenthesis to avoid precedence issues checkpatch complains: CHECK: Macro argument 'n' may be better as '(n)' to avoid precedence issues Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman --- include/linux/soundwire/sdw.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index 41c49631288a..35662d9c2c62 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -36,7 +36,7 @@ struct sdw_slave; #define SDW_FRAME_CTRL_BITS 48 #define SDW_MAX_DEVICES 11 -#define SDW_VALID_PORT_RANGE(n) (n <= 14 && n >= 1) +#define SDW_VALID_PORT_RANGE(n) ((n) <= 14 && (n) >= 1) #define SDW_DAI_ID_RANGE_START 100 #define SDW_DAI_ID_RANGE_END 200 -- cgit v1.2.3 From b57969db81a258a25dd59e306584ba671a037350 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Thu, 2 May 2019 16:29:30 +0530 Subject: soundwire: remove multiple blank lines Multi-blank lines do not help readability so remove them Checkpatch complains: CHECK: Please don't use multiple blank lines Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman --- include/linux/soundwire/sdw_registers.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/soundwire/sdw_registers.h b/include/linux/soundwire/sdw_registers.h index e75b2e3cf93d..a686f7988156 100644 --- a/include/linux/soundwire/sdw_registers.h +++ b/include/linux/soundwire/sdw_registers.h @@ -73,7 +73,6 @@ #define SDW_SCP_INTSTAT2_SCP3_CASCADE BIT(7) #define SDW_SCP_INTSTAT2_PORT4_10 GENMASK(6, 0) - #define SDW_SCP_INTSTAT3 0x43 #define SDW_SCP_INTSTAT3_PORT11_14 GENMASK(3, 0) -- cgit v1.2.3 From 72c69dcddce103338de558c5c6e9ef9e4f607ce1 Mon Sep 17 00:00:00 2001 From: Anju T Sudhakar Date: Tue, 16 Apr 2019 15:18:30 +0530 Subject: powerpc/perf: Trace imc events detection and cpuhotplug Patch detects trace-imc events, does memory initilizations for each online cpu, and registers cpuhotplug call-backs. Signed-off-by: Anju T Sudhakar Reviewed-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman --- include/linux/cpuhotplug.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index e78281d07b70..c3413d9b8348 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -170,6 +170,7 @@ enum cpuhp_state { CPUHP_AP_PERF_POWERPC_NEST_IMC_ONLINE, CPUHP_AP_PERF_POWERPC_CORE_IMC_ONLINE, CPUHP_AP_PERF_POWERPC_THREAD_IMC_ONLINE, + CPUHP_AP_PERF_POWERPC_TRACE_IMC_ONLINE, CPUHP_AP_WATCHDOG_ONLINE, CPUHP_AP_WORKQUEUE_ONLINE, CPUHP_AP_RCUTREE_ONLINE, -- cgit v1.2.3 From c2c9136b7096f0583117d7d0486600feec387865 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Fri, 26 Apr 2019 23:47:10 +0200 Subject: ARM: at91: move SoC specific definitions to SoC folder Move linux/atmel_tc.h to the SoC specific folder include/soc/at91. Signed-off-by: Alexandre Belloni Acked-by: Thierry Reding Acked-by: Arnd Bergmann Signed-off-by: Daniel Lezcano --- include/linux/atmel_tc.h | 270 ----------------------------------------------- 1 file changed, 270 deletions(-) delete mode 100644 include/linux/atmel_tc.h (limited to 'include/linux') diff --git a/include/linux/atmel_tc.h b/include/linux/atmel_tc.h deleted file mode 100644 index 468fdfa643f0..000000000000 --- a/include/linux/atmel_tc.h +++ /dev/null @@ -1,270 +0,0 @@ -/* - * Timer/Counter Unit (TC) registers. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef ATMEL_TC_H -#define ATMEL_TC_H - -#include -#include - -/* - * Many 32-bit Atmel SOCs include one or more TC blocks, each of which holds - * three general-purpose 16-bit timers. These timers share one register bank. - * Depending on the SOC, each timer may have its own clock and IRQ, or those - * may be shared by the whole TC block. - * - * These TC blocks may have up to nine external pins: TCLK0..2 signals for - * clocks or clock gates, and per-timer TIOA and TIOB signals used for PWM - * or triggering. Those pins need to be set up for use with the TC block, - * else they will be used as GPIOs or for a different controller. - * - * Although we expect each TC block to have a platform_device node, those - * nodes are not what drivers bind to. Instead, they ask for a specific - * TC block, by number ... which is a common approach on systems with many - * timers. Then they use clk_get() and platform_get_irq() to get clock and - * IRQ resources. - */ - -struct clk; - -/** - * struct atmel_tcb_config - SoC data for a Timer/Counter Block - * @counter_width: size in bits of a timer counter register - */ -struct atmel_tcb_config { - size_t counter_width; -}; - -/** - * struct atmel_tc - information about a Timer/Counter Block - * @pdev: physical device - * @regs: mapping through which the I/O registers can be accessed - * @id: block id - * @tcb_config: configuration data from SoC - * @irq: irq for each of the three channels - * @clk: internal clock source for each of the three channels - * @node: list node, for tclib internal use - * @allocated: if already used, for tclib internal use - * - * On some platforms, each TC channel has its own clocks and IRQs, - * while on others, all TC channels share the same clock and IRQ. - * Drivers should clk_enable() all the clocks they need even though - * all the entries in @clk may point to the same physical clock. - * Likewise, drivers should request irqs independently for each - * channel, but they must use IRQF_SHARED in case some of the entries - * in @irq are actually the same IRQ. - */ -struct atmel_tc { - struct platform_device *pdev; - void __iomem *regs; - int id; - const struct atmel_tcb_config *tcb_config; - int irq[3]; - struct clk *clk[3]; - struct clk *slow_clk; - struct list_head node; - bool allocated; -}; - -extern struct atmel_tc *atmel_tc_alloc(unsigned block); -extern void atmel_tc_free(struct atmel_tc *tc); - -/* platform-specific ATMEL_TC_TIMER_CLOCKx divisors (0 means 32KiHz) */ -extern const u8 atmel_tc_divisors[5]; - - -/* - * Two registers have block-wide controls. These are: configuring the three - * "external" clocks (or event sources) used by the timer channels; and - * synchronizing the timers by resetting them all at once. - * - * "External" can mean "external to chip" using the TCLK0, TCLK1, or TCLK2 - * signals. Or, it can mean "external to timer", using the TIOA output from - * one of the other two timers that's being run in waveform mode. - */ - -#define ATMEL_TC_BCR 0xc0 /* TC Block Control Register */ -#define ATMEL_TC_SYNC (1 << 0) /* synchronize timers */ - -#define ATMEL_TC_BMR 0xc4 /* TC Block Mode Register */ -#define ATMEL_TC_TC0XC0S (3 << 0) /* external clock 0 source */ -#define ATMEL_TC_TC0XC0S_TCLK0 (0 << 0) -#define ATMEL_TC_TC0XC0S_NONE (1 << 0) -#define ATMEL_TC_TC0XC0S_TIOA1 (2 << 0) -#define ATMEL_TC_TC0XC0S_TIOA2 (3 << 0) -#define ATMEL_TC_TC1XC1S (3 << 2) /* external clock 1 source */ -#define ATMEL_TC_TC1XC1S_TCLK1 (0 << 2) -#define ATMEL_TC_TC1XC1S_NONE (1 << 2) -#define ATMEL_TC_TC1XC1S_TIOA0 (2 << 2) -#define ATMEL_TC_TC1XC1S_TIOA2 (3 << 2) -#define ATMEL_TC_TC2XC2S (3 << 4) /* external clock 2 source */ -#define ATMEL_TC_TC2XC2S_TCLK2 (0 << 4) -#define ATMEL_TC_TC2XC2S_NONE (1 << 4) -#define ATMEL_TC_TC2XC2S_TIOA0 (2 << 4) -#define ATMEL_TC_TC2XC2S_TIOA1 (3 << 4) - - -/* - * Each TC block has three "channels", each with one counter and controls. - * - * Note that the semantics of ATMEL_TC_TIMER_CLOCKx (input clock selection - * when it's not "external") is silicon-specific. AT91 platforms use one - * set of definitions; AVR32 platforms use a different set. Don't hard-wire - * such knowledge into your code, use the global "atmel_tc_divisors" ... - * where index N is the divisor for clock N+1, else zero to indicate it uses - * the 32 KiHz clock. - * - * The timers can be chained in various ways, and operated in "waveform" - * generation mode (including PWM) or "capture" mode (to time events). In - * both modes, behavior can be configured in many ways. - * - * Each timer has two I/O pins, TIOA and TIOB. Waveform mode uses TIOA as a - * PWM output, and TIOB as either another PWM or as a trigger. Capture mode - * uses them only as inputs. - */ -#define ATMEL_TC_CHAN(idx) ((idx)*0x40) -#define ATMEL_TC_REG(idx, reg) (ATMEL_TC_CHAN(idx) + ATMEL_TC_ ## reg) - -#define ATMEL_TC_CCR 0x00 /* Channel Control Register */ -#define ATMEL_TC_CLKEN (1 << 0) /* clock enable */ -#define ATMEL_TC_CLKDIS (1 << 1) /* clock disable */ -#define ATMEL_TC_SWTRG (1 << 2) /* software trigger */ - -#define ATMEL_TC_CMR 0x04 /* Channel Mode Register */ - -/* Both modes share some CMR bits */ -#define ATMEL_TC_TCCLKS (7 << 0) /* clock source */ -#define ATMEL_TC_TIMER_CLOCK1 (0 << 0) -#define ATMEL_TC_TIMER_CLOCK2 (1 << 0) -#define ATMEL_TC_TIMER_CLOCK3 (2 << 0) -#define ATMEL_TC_TIMER_CLOCK4 (3 << 0) -#define ATMEL_TC_TIMER_CLOCK5 (4 << 0) -#define ATMEL_TC_XC0 (5 << 0) -#define ATMEL_TC_XC1 (6 << 0) -#define ATMEL_TC_XC2 (7 << 0) -#define ATMEL_TC_CLKI (1 << 3) /* clock invert */ -#define ATMEL_TC_BURST (3 << 4) /* clock gating */ -#define ATMEL_TC_GATE_NONE (0 << 4) -#define ATMEL_TC_GATE_XC0 (1 << 4) -#define ATMEL_TC_GATE_XC1 (2 << 4) -#define ATMEL_TC_GATE_XC2 (3 << 4) -#define ATMEL_TC_WAVE (1 << 15) /* true = Waveform mode */ - -/* CAPTURE mode CMR bits */ -#define ATMEL_TC_LDBSTOP (1 << 6) /* counter stops on RB load */ -#define ATMEL_TC_LDBDIS (1 << 7) /* counter disable on RB load */ -#define ATMEL_TC_ETRGEDG (3 << 8) /* external trigger edge */ -#define ATMEL_TC_ETRGEDG_NONE (0 << 8) -#define ATMEL_TC_ETRGEDG_RISING (1 << 8) -#define ATMEL_TC_ETRGEDG_FALLING (2 << 8) -#define ATMEL_TC_ETRGEDG_BOTH (3 << 8) -#define ATMEL_TC_ABETRG (1 << 10) /* external trigger is TIOA? */ -#define ATMEL_TC_CPCTRG (1 << 14) /* RC compare trigger enable */ -#define ATMEL_TC_LDRA (3 << 16) /* RA loading edge (of TIOA) */ -#define ATMEL_TC_LDRA_NONE (0 << 16) -#define ATMEL_TC_LDRA_RISING (1 << 16) -#define ATMEL_TC_LDRA_FALLING (2 << 16) -#define ATMEL_TC_LDRA_BOTH (3 << 16) -#define ATMEL_TC_LDRB (3 << 18) /* RB loading edge (of TIOA) */ -#define ATMEL_TC_LDRB_NONE (0 << 18) -#define ATMEL_TC_LDRB_RISING (1 << 18) -#define ATMEL_TC_LDRB_FALLING (2 << 18) -#define ATMEL_TC_LDRB_BOTH (3 << 18) - -/* WAVEFORM mode CMR bits */ -#define ATMEL_TC_CPCSTOP (1 << 6) /* RC compare stops counter */ -#define ATMEL_TC_CPCDIS (1 << 7) /* RC compare disables counter */ -#define ATMEL_TC_EEVTEDG (3 << 8) /* external event edge */ -#define ATMEL_TC_EEVTEDG_NONE (0 << 8) -#define ATMEL_TC_EEVTEDG_RISING (1 << 8) -#define ATMEL_TC_EEVTEDG_FALLING (2 << 8) -#define ATMEL_TC_EEVTEDG_BOTH (3 << 8) -#define ATMEL_TC_EEVT (3 << 10) /* external event source */ -#define ATMEL_TC_EEVT_TIOB (0 << 10) -#define ATMEL_TC_EEVT_XC0 (1 << 10) -#define ATMEL_TC_EEVT_XC1 (2 << 10) -#define ATMEL_TC_EEVT_XC2 (3 << 10) -#define ATMEL_TC_ENETRG (1 << 12) /* external event is trigger */ -#define ATMEL_TC_WAVESEL (3 << 13) /* waveform type */ -#define ATMEL_TC_WAVESEL_UP (0 << 13) -#define ATMEL_TC_WAVESEL_UPDOWN (1 << 13) -#define ATMEL_TC_WAVESEL_UP_AUTO (2 << 13) -#define ATMEL_TC_WAVESEL_UPDOWN_AUTO (3 << 13) -#define ATMEL_TC_ACPA (3 << 16) /* RA compare changes TIOA */ -#define ATMEL_TC_ACPA_NONE (0 << 16) -#define ATMEL_TC_ACPA_SET (1 << 16) -#define ATMEL_TC_ACPA_CLEAR (2 << 16) -#define ATMEL_TC_ACPA_TOGGLE (3 << 16) -#define ATMEL_TC_ACPC (3 << 18) /* RC compare changes TIOA */ -#define ATMEL_TC_ACPC_NONE (0 << 18) -#define ATMEL_TC_ACPC_SET (1 << 18) -#define ATMEL_TC_ACPC_CLEAR (2 << 18) -#define ATMEL_TC_ACPC_TOGGLE (3 << 18) -#define ATMEL_TC_AEEVT (3 << 20) /* external event changes TIOA */ -#define ATMEL_TC_AEEVT_NONE (0 << 20) -#define ATMEL_TC_AEEVT_SET (1 << 20) -#define ATMEL_TC_AEEVT_CLEAR (2 << 20) -#define ATMEL_TC_AEEVT_TOGGLE (3 << 20) -#define ATMEL_TC_ASWTRG (3 << 22) /* software trigger changes TIOA */ -#define ATMEL_TC_ASWTRG_NONE (0 << 22) -#define ATMEL_TC_ASWTRG_SET (1 << 22) -#define ATMEL_TC_ASWTRG_CLEAR (2 << 22) -#define ATMEL_TC_ASWTRG_TOGGLE (3 << 22) -#define ATMEL_TC_BCPB (3 << 24) /* RB compare changes TIOB */ -#define ATMEL_TC_BCPB_NONE (0 << 24) -#define ATMEL_TC_BCPB_SET (1 << 24) -#define ATMEL_TC_BCPB_CLEAR (2 << 24) -#define ATMEL_TC_BCPB_TOGGLE (3 << 24) -#define ATMEL_TC_BCPC (3 << 26) /* RC compare changes TIOB */ -#define ATMEL_TC_BCPC_NONE (0 << 26) -#define ATMEL_TC_BCPC_SET (1 << 26) -#define ATMEL_TC_BCPC_CLEAR (2 << 26) -#define ATMEL_TC_BCPC_TOGGLE (3 << 26) -#define ATMEL_TC_BEEVT (3 << 28) /* external event changes TIOB */ -#define ATMEL_TC_BEEVT_NONE (0 << 28) -#define ATMEL_TC_BEEVT_SET (1 << 28) -#define ATMEL_TC_BEEVT_CLEAR (2 << 28) -#define ATMEL_TC_BEEVT_TOGGLE (3 << 28) -#define ATMEL_TC_BSWTRG (3 << 30) /* software trigger changes TIOB */ -#define ATMEL_TC_BSWTRG_NONE (0 << 30) -#define ATMEL_TC_BSWTRG_SET (1 << 30) -#define ATMEL_TC_BSWTRG_CLEAR (2 << 30) -#define ATMEL_TC_BSWTRG_TOGGLE (3 << 30) - -#define ATMEL_TC_CV 0x10 /* counter Value */ -#define ATMEL_TC_RA 0x14 /* register A */ -#define ATMEL_TC_RB 0x18 /* register B */ -#define ATMEL_TC_RC 0x1c /* register C */ - -#define ATMEL_TC_SR 0x20 /* status (read-only) */ -/* Status-only flags */ -#define ATMEL_TC_CLKSTA (1 << 16) /* clock enabled */ -#define ATMEL_TC_MTIOA (1 << 17) /* TIOA mirror */ -#define ATMEL_TC_MTIOB (1 << 18) /* TIOB mirror */ - -#define ATMEL_TC_IER 0x24 /* interrupt enable (write-only) */ -#define ATMEL_TC_IDR 0x28 /* interrupt disable (write-only) */ -#define ATMEL_TC_IMR 0x2c /* interrupt mask (read-only) */ - -/* Status and IRQ flags */ -#define ATMEL_TC_COVFS (1 << 0) /* counter overflow */ -#define ATMEL_TC_LOVRS (1 << 1) /* load overrun */ -#define ATMEL_TC_CPAS (1 << 2) /* RA compare */ -#define ATMEL_TC_CPBS (1 << 3) /* RB compare */ -#define ATMEL_TC_CPCS (1 << 4) /* RC compare */ -#define ATMEL_TC_LDRAS (1 << 5) /* RA loading */ -#define ATMEL_TC_LDRBS (1 << 6) /* RB loading */ -#define ATMEL_TC_ETRGS (1 << 7) /* external trigger */ -#define ATMEL_TC_ALL_IRQ (ATMEL_TC_COVFS | ATMEL_TC_LOVRS | \ - ATMEL_TC_CPAS | ATMEL_TC_CPBS | \ - ATMEL_TC_CPCS | ATMEL_TC_LDRAS | \ - ATMEL_TC_LDRBS | ATMEL_TC_ETRGS) \ - /* all IRQs */ - -#endif -- cgit v1.2.3 From 22f96b3808c12a218e9a3bce6e1bfbd74efbe374 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 9 Apr 2019 14:51:48 -0600 Subject: fs: add sync_file_range() helper This just pulls out the ksys_sync_file_range() code to work on a struct file instead of an fd, so we can use it elsewhere. Signed-off-by: Jens Axboe --- include/linux/fs.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/fs.h b/include/linux/fs.h index dd28e7679089..2f66e247ecba 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2785,6 +2785,9 @@ extern int vfs_fsync_range(struct file *file, loff_t start, loff_t end, int datasync); extern int vfs_fsync(struct file *file, int datasync); +extern int sync_file_range(struct file *file, loff_t offset, loff_t nbytes, + unsigned int flags); + /* * Sync the bytes written if this was a synchronous write. Expect ki_pos * to already be updated for the write, and will return either the amount -- cgit v1.2.3 From 7a6127e39a16c97b505f13352238567fdc3f79a2 Mon Sep 17 00:00:00 2001 From: Douglas Anderson Date: Wed, 17 Apr 2019 17:13:53 -0700 Subject: USB: Export usb_wakeup_enabled_descendants() In (e583d9d USB: global suspend and remote wakeup don't mix) we introduced wakeup_enabled_descendants() as a static function. We'd like to use this function in USB controller drivers to know if we should keep the controller on during suspend time, since doing so has a power impact. Signed-off-by: Douglas Anderson Signed-off-by: Felipe Balbi --- include/linux/usb/hcd.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 695931b03684..ed4fbbd1b35f 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -652,11 +652,16 @@ extern wait_queue_head_t usb_kill_urb_queue; #define usb_endpoint_out(ep_dir) (!((ep_dir) & USB_DIR_IN)) #ifdef CONFIG_PM +extern unsigned usb_wakeup_enabled_descendants(struct usb_device *udev); extern void usb_root_hub_lost_power(struct usb_device *rhdev); extern int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg); extern int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg); extern void usb_hcd_resume_root_hub(struct usb_hcd *hcd); #else +static inline unsigned usb_wakeup_enabled_descendants(struct usb_device *udev) +{ + return 0; +} static inline void usb_hcd_resume_root_hub(struct usb_hcd *hcd) { return; -- cgit v1.2.3 From 4035c5b5f2e13b96b6dd5a6d746adad269f832cf Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Thu, 21 Mar 2019 10:27:56 +0800 Subject: usb: introduce usb_ep_type_string() function In some places, the code prints a human-readable USB endpoint transfer type (e.g. "bulk"). This involves a switch statement sometimes wrapped around in ({ ... }) block leading to code repetition. To make this scenario easier, here introduces usb_ep_type_string() function, which returns a human-readable name of provided endpoint type. It also changes a few places switch was used to use this new function. Signed-off-by: Chunfeng Yun Signed-off-by: Felipe Balbi --- include/linux/usb/ch9.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h index 523aa088f6ab..da82606be605 100644 --- a/include/linux/usb/ch9.h +++ b/include/linux/usb/ch9.h @@ -36,6 +36,14 @@ #include #include +/** + * usb_ep_type_string() - Returns human readable-name of the endpoint type. + * @ep_type: The endpoint type to return human-readable name for. If it's not + * any of the types: USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT}, + * usually got by usb_endpoint_type(), the string 'unknown' will be returned. + */ +extern const char *usb_ep_type_string(int ep_type); + /** * usb_speed_string() - Returns human readable-name of the speed. * @speed: The speed to return human-readable name for. If it's not -- cgit v1.2.3 From 4db61c2a16fce2ef85d82751de4ba43a39347cfb Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Thu, 25 Apr 2019 16:19:47 +0200 Subject: i2c: core: ratelimit 'transfer when suspended' errors There are two problems with WARN_ON() here. One: It is not ratelimited. Two: We don't see which adapter was used when trying to transfer something when already suspended. Implement a custom ratelimit once per adapter and use dev_WARN there. This fixes both issues. Drawback is that we don't see if multiple drivers are trying to transfer with the same adapter while suspended. They need to be discovered one after the other now. This is better than a high CPU load because a really broken driver might try to resend endlessly. Fixes: 9ac6cb5fbb17 ("i2c: add suspended flag and accessors for i2c adapters") Signed-off-by: Wolfram Sang Reviewed-by: Simon Horman Signed-off-by: Wolfram Sang Cc: stable@vger.kernel.org # v5.1+ --- include/linux/i2c.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 03755d4c9229..be27062f8ed1 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -694,7 +694,8 @@ struct i2c_adapter { int retries; struct device dev; /* the adapter device */ unsigned long locked_flags; /* owned by the I2C core */ -#define I2C_ALF_IS_SUSPENDED 0 +#define I2C_ALF_IS_SUSPENDED 0 +#define I2C_ALF_SUSPEND_REPORTED 1 int nr; char name[48]; -- cgit v1.2.3 From aaebdf8d68479f78d9f72b239684f70fbb0722c6 Mon Sep 17 00:00:00 2001 From: Julien Grall Date: Wed, 1 May 2019 14:58:18 +0100 Subject: genirq/msi: Add a new field in msi_desc to store an IOMMU cookie When an MSI doorbell is located downstream of an IOMMU, it is required to swizzle the physical address with an appropriately-mapped IOVA for any device attached to one of our DMA ops domain. At the moment, the allocation of the mapping may be done when composing the message. However, the composing may be done in non-preemtible context while the allocation requires to be called from preemptible context. A follow-up change will split the current logic in two functions requiring to keep an IOMMU cookie per MSI. A new field is introduced in msi_desc to store an IOMMU cookie. As the cookie may not be required in some configuration, the field is protected under a new config CONFIG_IRQ_MSI_IOMMU. A pair of helpers has also been introduced to access the field. Signed-off-by: Julien Grall Reviewed-by: Robin Murphy Reviewed-by: Eric Auger Signed-off-by: Marc Zyngier --- include/linux/msi.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'include/linux') diff --git a/include/linux/msi.h b/include/linux/msi.h index 7c28762851a3..3eb42ede0114 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -86,6 +86,9 @@ struct msi_desc { struct device *dev; struct msi_msg msg; struct irq_affinity_desc *affinity; +#ifdef CONFIG_IRQ_MSI_IOMMU + const void *iommu_cookie; +#endif union { /* PCI MSI/X specific data */ @@ -129,6 +132,29 @@ struct msi_desc { #define for_each_msi_entry_safe(desc, tmp, dev) \ list_for_each_entry_safe((desc), (tmp), dev_to_msi_list((dev)), list) +#ifdef CONFIG_IRQ_MSI_IOMMU +static inline const void *msi_desc_get_iommu_cookie(struct msi_desc *desc) +{ + return desc->iommu_cookie; +} + +static inline void msi_desc_set_iommu_cookie(struct msi_desc *desc, + const void *iommu_cookie) +{ + desc->iommu_cookie = iommu_cookie; +} +#else +static inline const void *msi_desc_get_iommu_cookie(struct msi_desc *desc) +{ + return NULL; +} + +static inline void msi_desc_set_iommu_cookie(struct msi_desc *desc, + const void *iommu_cookie) +{ +} +#endif + #ifdef CONFIG_PCI_MSI #define first_pci_msi_entry(pdev) first_msi_entry(&(pdev)->dev) #define for_each_pci_msi_entry(desc, pdev) \ -- cgit v1.2.3 From ece6e6f0218b7777e650bf93728130ae6f4feb7d Mon Sep 17 00:00:00 2001 From: Julien Grall Date: Wed, 1 May 2019 14:58:19 +0100 Subject: iommu/dma-iommu: Split iommu_dma_map_msi_msg() in two parts On RT, iommu_dma_map_msi_msg() may be called from non-preemptible context. This will lead to a splat with CONFIG_DEBUG_ATOMIC_SLEEP as the function is using spin_lock (they can sleep on RT). iommu_dma_map_msi_msg() is used to map the MSI page in the IOMMU PT and update the MSI message with the IOVA. Only the part to lookup for the MSI page requires to be called in preemptible context. As the MSI page cannot change over the lifecycle of the MSI interrupt, the lookup can be cached and re-used later on. iomma_dma_map_msi_msg() is now split in two functions: - iommu_dma_prepare_msi(): This function will prepare the mapping in the IOMMU and store the cookie in the structure msi_desc. This function should be called in preemptible context. - iommu_dma_compose_msi_msg(): This function will update the MSI message with the IOVA when the device is behind an IOMMU. Signed-off-by: Julien Grall Reviewed-by: Robin Murphy Reviewed-by: Eric Auger Acked-by: Joerg Roedel Signed-off-by: Marc Zyngier --- include/linux/dma-iommu.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'include/linux') diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h index e760dc5d1fa8..0b781a98ee73 100644 --- a/include/linux/dma-iommu.h +++ b/include/linux/dma-iommu.h @@ -71,12 +71,26 @@ void iommu_dma_unmap_resource(struct device *dev, dma_addr_t handle, size_t size, enum dma_data_direction dir, unsigned long attrs); /* The DMA API isn't _quite_ the whole story, though... */ +/* + * iommu_dma_prepare_msi() - Map the MSI page in the IOMMU device + * + * The MSI page will be stored in @desc. + * + * Return: 0 on success otherwise an error describing the failure. + */ +int iommu_dma_prepare_msi(struct msi_desc *desc, phys_addr_t msi_addr); + +/* Update the MSI message if required. */ +void iommu_dma_compose_msi_msg(struct msi_desc *desc, + struct msi_msg *msg); + void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg); void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list); #else struct iommu_domain; +struct msi_desc; struct msi_msg; struct device; @@ -99,6 +113,17 @@ static inline void iommu_put_dma_cookie(struct iommu_domain *domain) { } +static inline int iommu_dma_prepare_msi(struct msi_desc *desc, + phys_addr_t msi_addr) +{ + return 0; +} + +static inline void iommu_dma_compose_msi_msg(struct msi_desc *desc, + struct msi_msg *msg) +{ +} + static inline void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg) { } -- cgit v1.2.3 From 8b952747844526cef50fa2e0ae903f586e3cb2e4 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Fri, 3 May 2019 12:36:58 +0200 Subject: net: macb: shrink macb_platform_data structure This structure was used intensively for machine specific values when DT was not used. Since the removal of AVR32 from the kernel, this structure is only used for passing clocks from PCI macb wrapper, all other fields being 0. All other known platforms use DT. Remove the leftovers but make sure that PCI macb still works as expected by using default values: - phydev->irq is set to PHY_POLL by mdiobus_alloc() - mii_bus->phy_mask is cleared while allocating it - bp->phy_interface is set to PHY_INTERFACE_MODE_MII if mode not found in DT. This simplifies driver probe path and particularly phy handling. Signed-off-by: Nicolas Ferre Signed-off-by: David S. Miller --- include/linux/platform_data/macb.h | 9 --------- 1 file changed, 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/macb.h b/include/linux/platform_data/macb.h index 7815d50c26ff..2bc51b822956 100644 --- a/include/linux/platform_data/macb.h +++ b/include/linux/platform_data/macb.h @@ -12,19 +12,10 @@ /** * struct macb_platform_data - platform data for MACB Ethernet - * @phy_mask: phy mask passed when register the MDIO bus - * within the driver - * @phy_irq_pin: PHY IRQ - * @is_rmii: using RMII interface? - * @rev_eth_addr: reverse Ethernet address byte order * @pclk: platform clock * @hclk: AHB clock */ struct macb_platform_data { - u32 phy_mask; - int phy_irq_pin; - u8 is_rmii; - u8 rev_eth_addr; struct clk *pclk; struct clk *hclk; }; -- cgit v1.2.3 From 16e32c3cde7763ab875b9030b443ecbc8e352d8a Mon Sep 17 00:00:00 2001 From: Julien Grall Date: Wed, 1 May 2019 14:58:24 +0100 Subject: iommu/dma-iommu: Remove iommu_dma_map_msi_msg() A recent change split iommu_dma_map_msi_msg() in two new functions. The function was still implemented to avoid modifying all the callers at once. Now that all the callers have been reworked, iommu_dma_map_msi_msg() can be removed. Signed-off-by: Julien Grall Reviewed-by: Robin Murphy Reviewed-by: Eric Auger Acked-by: Joerg Roedel Signed-off-by: Marc Zyngier --- include/linux/dma-iommu.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h index 0b781a98ee73..476e0c54de2d 100644 --- a/include/linux/dma-iommu.h +++ b/include/linux/dma-iommu.h @@ -84,7 +84,6 @@ int iommu_dma_prepare_msi(struct msi_desc *desc, phys_addr_t msi_addr); void iommu_dma_compose_msi_msg(struct msi_desc *desc, struct msi_msg *msg); -void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg); void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list); #else @@ -124,10 +123,6 @@ static inline void iommu_dma_compose_msi_msg(struct msi_desc *desc, { } -static inline void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg) -{ -} - static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list) { } -- cgit v1.2.3 From 554aae35007e49f533d3d10e788295f7141725bc Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Thu, 2 May 2019 23:23:29 +0300 Subject: lib: Add support for generic packing operations This provides an unified API for accessing register bit fields regardless of memory layout. The basic unit of data for these API functions is the u64. The process of transforming an u64 from native CPU encoding into the peripheral's encoding is called 'pack', and transforming it from peripheral to native CPU encoding is 'unpack'. Signed-off-by: Vladimir Oltean Signed-off-by: David S. Miller --- include/linux/packing.h | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 include/linux/packing.h (limited to 'include/linux') diff --git a/include/linux/packing.h b/include/linux/packing.h new file mode 100644 index 000000000000..54667735cc67 --- /dev/null +++ b/include/linux/packing.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright (c) 2016-2018, NXP Semiconductors + * Copyright (c) 2018-2019, Vladimir Oltean + */ +#ifndef _LINUX_PACKING_H +#define _LINUX_PACKING_H + +#include +#include + +#define QUIRK_MSB_ON_THE_RIGHT BIT(0) +#define QUIRK_LITTLE_ENDIAN BIT(1) +#define QUIRK_LSW32_IS_FIRST BIT(2) + +enum packing_op { + PACK, + UNPACK, +}; + +/** + * packing - Convert numbers (currently u64) between a packed and an unpacked + * format. Unpacked means laid out in memory in the CPU's native + * understanding of integers, while packed means anything else that + * requires translation. + * + * @pbuf: Pointer to a buffer holding the packed value. + * @uval: Pointer to an u64 holding the unpacked value. + * @startbit: The index (in logical notation, compensated for quirks) where + * the packed value starts within pbuf. Must be larger than, or + * equal to, endbit. + * @endbit: The index (in logical notation, compensated for quirks) where + * the packed value ends within pbuf. Must be smaller than, or equal + * to, startbit. + * @op: If PACK, then uval will be treated as const pointer and copied (packed) + * into pbuf, between startbit and endbit. + * If UNPACK, then pbuf will be treated as const pointer and the logical + * value between startbit and endbit will be copied (unpacked) to uval. + * @quirks: A bit mask of QUIRK_LITTLE_ENDIAN, QUIRK_LSW32_IS_FIRST and + * QUIRK_MSB_ON_THE_RIGHT. + * + * Return: 0 on success, EINVAL or ERANGE if called incorrectly. Assuming + * correct usage, return code may be discarded. + * If op is PACK, pbuf is modified. + * If op is UNPACK, uval is modified. + */ +int packing(void *pbuf, u64 *uval, int startbit, int endbit, size_t pbuflen, + enum packing_op op, u8 quirks); + +#endif -- cgit v1.2.3 From 8aa9ebccae87621d997707e4f25e53fddd7e30e4 Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Thu, 2 May 2019 23:23:30 +0300 Subject: net: dsa: Introduce driver for NXP SJA1105 5-port L2 switch At this moment the following is supported: * Link state management through phylib * Autonomous L2 forwarding managed through iproute2 bridge commands. IP termination must be done currently through the master netdevice, since the switch is unmanaged at this point and using DSA_TAG_PROTO_NONE. Signed-off-by: Vladimir Oltean Signed-off-by: Georg Waibel Acked-by: Florian Fainelli Signed-off-by: David S. Miller --- include/linux/dsa/sja1105.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 include/linux/dsa/sja1105.h (limited to 'include/linux') diff --git a/include/linux/dsa/sja1105.h b/include/linux/dsa/sja1105.h new file mode 100644 index 000000000000..30559d1d0e1b --- /dev/null +++ b/include/linux/dsa/sja1105.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 + * Copyright (c) 2019, Vladimir Oltean + */ + +/* Included by drivers/net/dsa/sja1105/sja1105.h */ + +#ifndef _NET_DSA_SJA1105_H +#define _NET_DSA_SJA1105_H + +/* The switch can only be convinced to stay in unmanaged mode and not trap any + * link-local traffic by actually telling it to filter frames sent at the + * 00:00:00:00:00:00 destination MAC. + */ +#define SJA1105_LINKLOCAL_FILTER_A 0x000000000000ull +#define SJA1105_LINKLOCAL_FILTER_A_MASK 0xFFFFFFFFFFFFull +#define SJA1105_LINKLOCAL_FILTER_B 0x000000000000ull +#define SJA1105_LINKLOCAL_FILTER_B_MASK 0xFFFFFFFFFFFFull + +#endif /* _NET_DSA_SJA1105_H */ -- cgit v1.2.3 From 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Thu, 2 May 2019 23:23:34 +0300 Subject: net: dsa: sja1105: Add support for VLAN operations VLAN filtering cannot be properly disabled in SJA1105. So in order to emulate the "no VLAN awareness" behavior (not dropping traffic that is tagged with a VID that isn't configured on the port), we need to hack another switch feature: programmable TPID (which is 0x8100 for 802.1Q). We are reprogramming the TPID to a bogus value which leaves the switch thinking that all traffic is untagged, and therefore accepts it. Under a vlan_filtering bridge, the proper TPID of ETH_P_8021Q is installed again, and the switch starts identifying 802.1Q-tagged traffic. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- include/linux/dsa/sja1105.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/dsa/sja1105.h b/include/linux/dsa/sja1105.h index 30559d1d0e1b..abf3977e34fd 100644 --- a/include/linux/dsa/sja1105.h +++ b/include/linux/dsa/sja1105.h @@ -7,6 +7,10 @@ #ifndef _NET_DSA_SJA1105_H #define _NET_DSA_SJA1105_H +#include + +#define ETH_P_SJA1105 ETH_P_DSA_8021Q + /* The switch can only be convinced to stay in unmanaged mode and not trap any * link-local traffic by actually telling it to filter frames sent at the * 00:00:00:00:00:00 destination MAC. -- cgit v1.2.3 From 7b9487a9a5c41ce0ff4f6ca74652e99541bd51c3 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Tue, 30 Apr 2019 13:50:58 -0700 Subject: clk: analogbits: add Wide-Range PLL library Add common library code for the Analog Bits Wide-Range PLL (WRPLL) IP block, as implemented in TSMC CLN28HPC. There is no bus interface or register target associated with this PLL. This library is intended to be used by drivers for IP blocks that expose registers connected to the PLL configuration and status signals. Based on code originally written by Wesley Terpstra : https://github.com/riscv/riscv-linux/commit/999529edf517ed75b56659d456d221b2ee56bb60 This version incorporates several changes requested by Stephen Boyd . Signed-off-by: Paul Walmsley Signed-off-by: Paul Walmsley Cc: Wesley Terpstra Cc: Palmer Dabbelt Cc: Michael Turquette Cc: Stephen Boyd Cc: Megan Wachs Cc: linux-clk@vger.kernel.org Cc: linux-kernel@vger.kernel.org [sboyd@kernel.org: Fix some const issues] Signed-off-by: Stephen Boyd --- include/linux/clk/analogbits-wrpll-cln28hpc.h | 79 +++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 include/linux/clk/analogbits-wrpll-cln28hpc.h (limited to 'include/linux') diff --git a/include/linux/clk/analogbits-wrpll-cln28hpc.h b/include/linux/clk/analogbits-wrpll-cln28hpc.h new file mode 100644 index 000000000000..03279097e138 --- /dev/null +++ b/include/linux/clk/analogbits-wrpll-cln28hpc.h @@ -0,0 +1,79 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2018-2019 SiFive, Inc. + * Wesley Terpstra + * Paul Walmsley + */ + +#ifndef __LINUX_CLK_ANALOGBITS_WRPLL_CLN28HPC_H +#define __LINUX_CLK_ANALOGBITS_WRPLL_CLN28HPC_H + +#include + +/* DIVQ_VALUES: number of valid DIVQ values */ +#define DIVQ_VALUES 6 + +/* + * Bit definitions for struct wrpll_cfg.flags + * + * WRPLL_FLAGS_BYPASS_FLAG: if set, the PLL is either in bypass, or should be + * programmed to enter bypass + * WRPLL_FLAGS_RESET_FLAG: if set, the PLL is in reset + * WRPLL_FLAGS_INT_FEEDBACK_FLAG: if set, the PLL is configured for internal + * feedback mode + * WRPLL_FLAGS_EXT_FEEDBACK_FLAG: if set, the PLL is configured for external + * feedback mode (not yet supported by this driver) + */ +#define WRPLL_FLAGS_BYPASS_SHIFT 0 +#define WRPLL_FLAGS_BYPASS_MASK BIT(WRPLL_FLAGS_BYPASS_SHIFT) +#define WRPLL_FLAGS_RESET_SHIFT 1 +#define WRPLL_FLAGS_RESET_MASK BIT(WRPLL_FLAGS_RESET_SHIFT) +#define WRPLL_FLAGS_INT_FEEDBACK_SHIFT 2 +#define WRPLL_FLAGS_INT_FEEDBACK_MASK BIT(WRPLL_FLAGS_INT_FEEDBACK_SHIFT) +#define WRPLL_FLAGS_EXT_FEEDBACK_SHIFT 3 +#define WRPLL_FLAGS_EXT_FEEDBACK_MASK BIT(WRPLL_FLAGS_EXT_FEEDBACK_SHIFT) + +/** + * struct wrpll_cfg - WRPLL configuration values + * @divr: reference divider value (6 bits), as presented to the PLL signals + * @divf: feedback divider value (9 bits), as presented to the PLL signals + * @divq: output divider value (3 bits), as presented to the PLL signals + * @flags: PLL configuration flags. See above for more information + * @range: PLL loop filter range. See below for more information + * @output_rate_cache: cached output rates, swept across DIVQ + * @parent_rate: PLL refclk rate for which values are valid + * @max_r: maximum possible R divider value, given @parent_rate + * @init_r: initial R divider value to start the search from + * + * @divr, @divq, @divq, @range represent what the PLL expects to see + * on its input signals. Thus @divr and @divf are the actual divisors + * minus one. @divq is a power-of-two divider; for example, 1 = + * divide-by-2 and 6 = divide-by-64. 0 is an invalid @divq value. + * + * When initially passing a struct wrpll_cfg record, the + * record should be zero-initialized with the exception of the @flags + * field. The only flag bits that need to be set are either + * WRPLL_FLAGS_INT_FEEDBACK or WRPLL_FLAGS_EXT_FEEDBACK. + */ +struct wrpll_cfg { + u8 divr; + u8 divq; + u8 range; + u8 flags; + u16 divf; +/* private: */ + u32 output_rate_cache[DIVQ_VALUES]; + unsigned long parent_rate; + u8 max_r; + u8 init_r; +}; + +int wrpll_configure_for_rate(struct wrpll_cfg *c, u32 target_rate, + unsigned long parent_rate); + +unsigned int wrpll_calc_max_lock_us(const struct wrpll_cfg *c); + +unsigned long wrpll_calc_output_rate(const struct wrpll_cfg *c, + unsigned long parent_rate); + +#endif /* __LINUX_CLK_ANALOGBITS_WRPLL_CLN28HPC_H */ -- cgit v1.2.3 From 2f1a6fbbef7781382850c3104ecb658f21b5d460 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Thu, 11 Apr 2019 13:34:45 +1000 Subject: power/suspend: Add function to disable secondaries for suspend This adds a function to disable secondary CPUs for suspend that are not necessarily non-zero / non-boot CPUs. Platforms will be able to use this to suspend using non-zero CPUs. Signed-off-by: Nicholas Piggin Signed-off-by: Peter Zijlstra (Intel) Cc: Frederic Weisbecker Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Rafael J . Wysocki Cc: Thomas Gleixner Cc: linuxppc-dev@lists.ozlabs.org Link: https://lkml.kernel.org/r/20190411033448.20842-3-npiggin@gmail.com Signed-off-by: Ingo Molnar --- include/linux/cpu.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 5041357d0297..7ab2f09c0a14 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -137,9 +137,21 @@ static inline int disable_nonboot_cpus(void) return freeze_secondary_cpus(0); } extern void enable_nonboot_cpus(void); + +static inline int suspend_disable_secondary_cpus(void) +{ + return freeze_secondary_cpus(0); +} +static inline void suspend_enable_secondary_cpus(void) +{ + return enable_nonboot_cpus(); +} + #else /* !CONFIG_PM_SLEEP_SMP */ static inline int disable_nonboot_cpus(void) { return 0; } static inline void enable_nonboot_cpus(void) {} +static inline int suspend_disable_secondary_cpus(void) { return 0; } +static inline void suspend_enable_secondary_cpus(void) { } #endif /* !CONFIG_PM_SLEEP_SMP */ void cpu_startup_entry(enum cpuhp_state state); -- cgit v1.2.3 From 9ca12ac04bb7d7cfb28aa549dcd3d15761f15543 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Thu, 11 Apr 2019 13:34:46 +1000 Subject: kernel/cpu: Allow non-zero CPU to be primary for suspend / kexec freeze This patch provides an arch option, ARCH_SUSPEND_NONZERO_CPU, to opt-in to allowing suspend to occur on one of the housekeeping CPUs rather than hardcoded CPU0. This will allow CPU0 to be a nohz_full CPU with a later change. It may be possible for platforms with hardware/firmware restrictions on suspend/wake effectively support this by handing off the final stage to CPU0 when kernel housekeeping is no longer required. Another option is to make housekeeping / nohz_full mask dynamic at runtime, but the complexity could not be justified at this time. Signed-off-by: Nicholas Piggin Signed-off-by: Peter Zijlstra (Intel) Cc: Frederic Weisbecker Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Rafael J . Wysocki Cc: Thomas Gleixner Cc: linuxppc-dev@lists.ozlabs.org Link: https://lkml.kernel.org/r/20190411033448.20842-4-npiggin@gmail.com Signed-off-by: Ingo Molnar --- include/linux/cpu.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 7ab2f09c0a14..73baab8535c1 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -140,7 +140,12 @@ extern void enable_nonboot_cpus(void); static inline int suspend_disable_secondary_cpus(void) { - return freeze_secondary_cpus(0); + int cpu = 0; + + if (IS_ENABLED(CONFIG_PM_SLEEP_SMP_NONZERO_CPU)) + cpu = -1; + + return freeze_secondary_cpus(cpu); } static inline void suspend_enable_secondary_cpus(void) { -- cgit v1.2.3 From 4d141ab3416d90f87775f5dee725efdf40110a8f Mon Sep 17 00:00:00 2001 From: Petr Mladek Date: Fri, 3 May 2019 15:26:24 +0200 Subject: livepatch: Remove custom kobject state handling kobject_init() always succeeds and sets the reference count to 1. It allows to always free the structures via kobject_put() and the related release callback. Note that the custom kobject state handling was used only because we did not know that kobject_put() can and actually should get called even when kobject_init_and_add() fails. The patch should not change the existing behavior. Suggested-by: "Tobin C. Harding" Signed-off-by: Petr Mladek Reviewed-by: Kamalesh Babulal Acked-by: Joe Lawrence Signed-off-by: Jiri Kosina --- include/linux/livepatch.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/livepatch.h b/include/linux/livepatch.h index 53551f470722..a14bab1a0a3e 100644 --- a/include/linux/livepatch.h +++ b/include/linux/livepatch.h @@ -86,7 +86,6 @@ struct klp_func { struct list_head node; struct list_head stack_node; unsigned long old_size, new_size; - bool kobj_added; bool nop; bool patched; bool transition; @@ -141,7 +140,6 @@ struct klp_object { struct list_head func_list; struct list_head node; struct module *mod; - bool kobj_added; bool dynamic; bool patched; }; @@ -170,7 +168,6 @@ struct klp_patch { struct list_head list; struct kobject kobj; struct list_head obj_list; - bool kobj_added; bool enabled; bool forced; struct work_struct free_work; -- cgit v1.2.3 From e3e83cc601e57aeeea212e1cc37ff9a7ad584aae Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Fri, 3 May 2019 10:00:40 -0700 Subject: power: supply: core: Add POWER_SUPPLY_HEALTH_OVERCURRENT constant Add POWER_SUPPLY_HEALTH_OVERCURRENT constant in order to allow singalling overcurrent condition via power supply health information. Signed-off-by: Andrey Smirnov Reviewed-by: Guenter Roeck Cc: Enric Balletbo Serra Cc: Chris Healy Cc: Lucas Stach Cc: Fabio Estevam Cc: Guenter Roeck Cc: linux-kernel@vger.kernel.org Cc: linux-pm@vger.kernel.org Signed-off-by: Sebastian Reichel --- include/linux/power_supply.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index d59205170232..d9c0c094f8a0 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -61,6 +61,7 @@ enum { POWER_SUPPLY_HEALTH_COLD, POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE, POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE, + POWER_SUPPLY_HEALTH_OVERCURRENT, }; enum { -- cgit v1.2.3 From a27415decd84dac124c6185f1184b6c779d0a5ab Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Wed, 1 May 2019 00:10:50 +0200 Subject: net: dsa: mv88e6xxx: Pass interrupt number in platform data Allow an interrupt number to be passed in the platform data. The driver will then use it if not zero, otherwise it will poll for interrupts. Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller --- include/linux/platform_data/mv88e6xxx.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/mv88e6xxx.h b/include/linux/platform_data/mv88e6xxx.h index 963730b44aea..21452a9365e1 100644 --- a/include/linux/platform_data/mv88e6xxx.h +++ b/include/linux/platform_data/mv88e6xxx.h @@ -13,6 +13,7 @@ struct dsa_mv88e6xxx_pdata { unsigned int enabled_ports; struct net_device *netdev; u32 eeprom_len; + int irq; }; #endif -- cgit v1.2.3 From 22c0ef6b1475aef4765efc4aa764b8580018123c Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Wed, 1 May 2019 21:34:43 +0200 Subject: net: phy: improve pause handling When probing the phy device we set sym and asym pause in the "supported" bitmap (unless the PHY tells us otherwise). However we don't know yet whether the MAC supports pause. Simply copying phy->supported to phy->advertising will trigger advertising pause, and that's not what we want. Therefore add phy_advertise_supported() that copies all modes but doesn't touch the pause bits. In phy_support_(a)sym_pause we shouldn't set any bits in the supported bitmap because we may set a bit the PHY intentionally disabled. Effective pause support should be the AND-combined PHY and MAC pause capabilities. If the MAC supports everything, then it's only relevant what the PHY supports. If MAC supports sym pause only, then we have to clear the asym bit in phydev->supported. Copy the pause flags only and don't touch the modes, because a driver may have intentionally removed a mode from phydev->advertising. Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- include/linux/phy.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/phy.h b/include/linux/phy.h index 0f9552b17ee7..4a03f8a46d33 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1154,6 +1154,7 @@ void phy_request_interrupt(struct phy_device *phydev); void phy_print_status(struct phy_device *phydev); int phy_set_max_speed(struct phy_device *phydev, u32 max_speed); void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode); +void phy_advertise_supported(struct phy_device *phydev); void phy_support_sym_pause(struct phy_device *phydev); void phy_support_asym_pause(struct phy_device *phydev); void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx, -- cgit v1.2.3 From f24098f80748ea95d53603a7bb7954a41bb3ca1b Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Wed, 1 May 2019 22:14:21 +0200 Subject: net: phy: improve resuming from hibernation I got an interesting report [0] that after resuming from hibernation the link has 100Mbps instead of 1Gbps. Reason is that another OS has been used whilst Linux was hibernated. And this OS speeds down the link due to WoL. Therefore, when resuming, we shouldn't expect that what the PHY advertises is what it did when hibernating. Easiest way to do this is removing state PHY_RESUMING. Instead always go via PHY_UP that configures PHY advertisement. [0] https://bugzilla.kernel.org/show_bug.cgi?id=202851 Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- include/linux/phy.h | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/phy.h b/include/linux/phy.h index 4a03f8a46d33..073fb151b5a9 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -308,13 +308,7 @@ struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr); * * HALTED: PHY is up, but no polling or interrupts are done. Or * PHY is in an error state. - * - * - phy_start moves to RESUMING - * - * RESUMING: PHY was halted, but now wants to run again. - * - If we are forcing, or aneg is done, timer moves to RUNNING - * - If aneg is not done, timer moves to AN - * - phy_stop moves to HALTED + * - phy_start moves to UP */ enum phy_state { PHY_DOWN = 0, @@ -324,7 +318,6 @@ enum phy_state { PHY_RUNNING, PHY_NOLINK, PHY_FORCING, - PHY_RESUMING }; /** -- cgit v1.2.3 From 2f8f1336a48bd5186de3476da0a3e2ec06d0533a Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 30 Apr 2019 09:52:27 +0800 Subject: blk-mq: always free hctx after request queue is freed In normal queue cleanup path, hctx is released after request queue is freed, see blk_mq_release(). However, in __blk_mq_update_nr_hw_queues(), hctx may be freed because of hw queues shrinking. This way is easy to cause use-after-free, because: one implicit rule is that it is safe to call almost all block layer APIs if the request queue is alive; and one hctx may be retrieved by one API, then the hctx can be freed by blk_mq_update_nr_hw_queues(); finally use-after-free is triggered. Fixes this issue by always freeing hctx after releasing request queue. If some hctxs are removed in blk_mq_update_nr_hw_queues(), introduce a per-queue list to hold them, then try to resuse these hctxs if numa node is matched. Cc: Dongli Zhang Cc: James Smart Cc: Bart Van Assche Cc: linux-scsi@vger.kernel.org, Cc: Martin K . Petersen , Cc: Christoph Hellwig , Cc: James E . J . Bottomley , Reviewed-by: Hannes Reinecke Tested-by: James Smart Signed-off-by: Ming Lei Signed-off-by: Jens Axboe --- include/linux/blk-mq.h | 2 ++ include/linux/blkdev.h | 7 +++++++ 2 files changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index db29928de467..15d1aa53d96c 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -70,6 +70,8 @@ struct blk_mq_hw_ctx { struct dentry *sched_debugfs_dir; #endif + struct list_head hctx_list; + /* Must be the last member - see also blk_mq_hw_ctx_size(). */ struct srcu_struct srcu[0]; }; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index bd3e3f09bfa0..1aafeb923e7b 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -535,6 +535,13 @@ struct request_queue { struct mutex sysfs_lock; + /* + * for reusing dead hctx instance in case of updating + * nr_hw_queues + */ + struct list_head unused_hctx_list; + spinlock_t unused_hctx_lock; + atomic_t mq_freeze_depth; #if defined(CONFIG_BLK_DEV_BSG) -- cgit v1.2.3 From 522e4077e8dcdfc5b8e96469d3bc2324bc5d6466 Mon Sep 17 00:00:00 2001 From: Li RongQing Date: Sun, 28 Apr 2019 15:12:19 +0800 Subject: netfilter: slightly optimize nf_inet_addr_mask using 64bit computation to slightly optimize nf_inet_addr_mask Signed-off-by: Li RongQing Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h index a7252f3baeb0..996bc247ef6e 100644 --- a/include/linux/netfilter.h +++ b/include/linux/netfilter.h @@ -41,10 +41,19 @@ static inline void nf_inet_addr_mask(const union nf_inet_addr *a1, union nf_inet_addr *result, const union nf_inet_addr *mask) { +#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 + const unsigned long *ua = (const unsigned long *)a1; + unsigned long *ur = (unsigned long *)result; + const unsigned long *um = (const unsigned long *)mask; + + ur[0] = ua[0] & um[0]; + ur[1] = ua[1] & um[1]; +#else result->all[0] = a1->all[0] & mask->all[0]; result->all[1] = a1->all[1] & mask->all[1]; result->all[2] = a1->all[2] & mask->all[2]; result->all[3] = a1->all[3] & mask->all[3]; +#endif } int netfilter_init(void); -- cgit v1.2.3 From f9bbe4477c30ece44296437ee26142b42ef8070b Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Sun, 5 May 2019 13:19:22 +0300 Subject: net: dsa: Optional VLAN-based port separation for switches without tagging This patch provides generic DSA code for using VLAN (802.1Q) tags for the same purpose as a dedicated switch tag for injection/extraction. It is based on the discussions and interest that has been so far expressed in https://www.spinics.net/lists/netdev/msg556125.html. Unlike all other DSA-supported tagging protocols, CONFIG_NET_DSA_TAG_8021Q does not offer a complete solution for drivers (nor can it). Instead, it provides generic code that driver can opt into calling: - dsa_8021q_xmit: Inserts a VLAN header with the specified contents. Can be called from another tagging protocol's xmit function. Currently the LAN9303 driver is inserting headers that are simply 802.1Q with custom fields, so this is an opportunity for code reuse. - dsa_8021q_rcv: Retrieves the TPID and TCI from a VLAN-tagged skb. Removing the VLAN header is left as a decision for the caller to make. - dsa_port_setup_8021q_tagging: For each user port, installs an Rx VID and a Tx VID, for proper untagged traffic identification on ingress and steering on egress. Also sets up the VLAN trunk on the upstream (CPU or DSA) port. Drivers are intentionally left to call this function explicitly, depending on the context and hardware support. The expected switch behavior and VLAN semantics should not be violated under any conditions. That is, after calling dsa_port_setup_8021q_tagging, the hardware should still pass all ingress traffic, be it tagged or untagged. For uniformity with the other tagging protocols, a module for the dsa_8021q_netdev_ops structure is registered, but the typical usage is to set up another tagging protocol which selects CONFIG_NET_DSA_TAG_8021Q, and calls the API from tag_8021q.h. Null function definitions are also provided so that a "depends on" is not forced in the Kconfig. This tagging protocol only works when switch ports are standalone, or when they are added to a VLAN-unaware bridge. It will probably remain this way for the reasons below. When added to a bridge that has vlan_filtering 1, the bridge core will install its own VLANs and reset the pvids through switchdev. For the bridge core, switchdev is a write-only pipe. All VLAN-related state is kept in the bridge core and nothing is read from DSA/switchdev or from the driver. So the bridge core will break this port separation because it will install the vlan_default_pvid into all switchdev ports. Even if we could teach the bridge driver about switchdev preference of a certain vlan_default_pvid (task difficult in itself since the current setting is per-bridge but we would need it per-port), there would still exist many other challenges. Firstly, in the DSA rcv callback, a driver would have to perform an iterative reverse lookup to find the correct switch port. That is because the port is a bridge slave, so its Rx VID (port PVID) is subject to user configuration. How would we ensure that the user doesn't reset the pvid to a different value (which would make an O(1) translation impossible), or to a non-unique value within this DSA switch tree (which would make any translation impossible)? Finally, not all switch ports are equal in DSA, and that makes it difficult for the bridge to be completely aware of this anyway. The CPU port needs to transmit tagged packets (VLAN trunk) in order for the DSA rcv code to be able to decode source information. But the bridge code has absolutely no idea which switch port is the CPU port, if nothing else then just because there is no netdevice registered by DSA for the CPU port. Also DSA does not currently allow the user to specify that they want the CPU port to do VLAN trunking anyway. VLANs are added to the CPU port using the same flags as they were added on the user port. So the VLANs installed by dsa_port_setup_8021q_tagging per driver request should remain private from the bridge's and user's perspective, and should not alter the VLAN semantics observed by the user. In the current implementation a VLAN range ending at 4095 (VLAN_N_VID) is reserved for this purpose. Each port receives a unique Rx VLAN and a unique Tx VLAN. Separate VLANs are needed for Rx and Tx because they serve different purposes: on Rx the switch must process traffic as untagged and process it with a port-based VLAN, but with care not to hinder bridging. On the other hand, the Tx VLAN is where the reachability restrictions are imposed, since by tagging frames in the xmit callback we are telling the switch onto which port to steer the frame. Some general guidance on how this support might be employed for real-life hardware (some comments made by Florian Fainelli): - If the hardware supports VLAN tag stacking, it should somehow back up its private VLAN settings when the bridge tries to override them. Then the driver could re-apply them as outer tags. Dedicating an outer tag per bridge device would allow identical inner tag VID numbers to co-exist, yet preserve broadcast domain isolation. - If the switch cannot handle VLAN tag stacking, it should disable this port separation when added as slave to a vlan_filtering bridge, in that case having reduced functionality. - Drivers for old switches that don't support the entire VLAN_N_VID range will need to rework the current range selection mechanism. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli Reviewed-by: Vivien Didelot Signed-off-by: David S. Miller --- include/linux/dsa/8021q.h | 76 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 include/linux/dsa/8021q.h (limited to 'include/linux') diff --git a/include/linux/dsa/8021q.h b/include/linux/dsa/8021q.h new file mode 100644 index 000000000000..3911e0586478 --- /dev/null +++ b/include/linux/dsa/8021q.h @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: GPL-2.0 + * Copyright (c) 2019, Vladimir Oltean + */ + +#ifndef _NET_DSA_8021Q_H +#define _NET_DSA_8021Q_H + +#include + +struct dsa_switch; +struct sk_buff; +struct net_device; +struct packet_type; + +#if IS_ENABLED(CONFIG_NET_DSA_TAG_8021Q) + +int dsa_port_setup_8021q_tagging(struct dsa_switch *ds, int index, + bool enabled); + +struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev, + u16 tpid, u16 tci); + +struct sk_buff *dsa_8021q_rcv(struct sk_buff *skb, struct net_device *netdev, + struct packet_type *pt, u16 *tpid, u16 *tci); + +u16 dsa_8021q_tx_vid(struct dsa_switch *ds, int port); + +u16 dsa_8021q_rx_vid(struct dsa_switch *ds, int port); + +int dsa_8021q_rx_switch_id(u16 vid); + +int dsa_8021q_rx_source_port(u16 vid); + +#else + +int dsa_port_setup_8021q_tagging(struct dsa_switch *ds, int index, + bool enabled) +{ + return 0; +} + +struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev, + u16 tpid, u16 tci) +{ + return NULL; +} + +struct sk_buff *dsa_8021q_rcv(struct sk_buff *skb, struct net_device *netdev, + struct packet_type *pt, u16 *tpid, u16 *tci) +{ + return NULL; +} + +u16 dsa_8021q_tx_vid(struct dsa_switch *ds, int port) +{ + return 0; +} + +u16 dsa_8021q_rx_vid(struct dsa_switch *ds, int port) +{ + return 0; +} + +int dsa_8021q_rx_switch_id(u16 vid) +{ + return 0; +} + +int dsa_8021q_rx_source_port(u16 vid) +{ + return 0; +} + +#endif /* IS_ENABLED(CONFIG_NET_DSA_TAG_8021Q) */ + +#endif /* _NET_DSA_8021Q_H */ -- cgit v1.2.3 From 227d07a07ef126272ea2eed97fd136cd7a803d81 Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Sun, 5 May 2019 13:19:27 +0300 Subject: net: dsa: sja1105: Add support for traffic through standalone ports In order to support this, we are creating a make-shift switch tag out of a VLAN trunk configured on the CPU port. Termination of normal traffic on switch ports only works when not under a vlan_filtering bridge. Termination of management (PTP, BPDU) traffic works under all circumstances because it uses a different tagging mechanism (incl_srcpt). We are making use of the generic CONFIG_NET_DSA_TAG_8021Q code and leveraging it from our own CONFIG_NET_DSA_TAG_SJA1105. There are two types of traffic: regular and link-local. The link-local traffic received on the CPU port is trapped from the switch's regular forwarding decisions because it matched one of the two DMAC filters for management traffic. On transmission, the switch requires special massaging for these link-local frames. Due to a weird implementation of the switching IP, by default it drops link-local frames that originate on the CPU port. It needs to be told where to forward them to, through an SPI command ("management route") that is valid for only a single frame. So when we're sending link-local traffic, we are using the dsa_defer_xmit mechanism. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- include/linux/dsa/sja1105.h | 35 ++++++++++++++++++++++++++--------- 1 file changed, 26 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dsa/sja1105.h b/include/linux/dsa/sja1105.h index abf3977e34fd..603a02e5a8cb 100644 --- a/include/linux/dsa/sja1105.h +++ b/include/linux/dsa/sja1105.h @@ -2,22 +2,39 @@ * Copyright (c) 2019, Vladimir Oltean */ -/* Included by drivers/net/dsa/sja1105/sja1105.h */ +/* Included by drivers/net/dsa/sja1105/sja1105.h and net/dsa/tag_sja1105.c */ #ifndef _NET_DSA_SJA1105_H #define _NET_DSA_SJA1105_H +#include #include +#include #define ETH_P_SJA1105 ETH_P_DSA_8021Q -/* The switch can only be convinced to stay in unmanaged mode and not trap any - * link-local traffic by actually telling it to filter frames sent at the - * 00:00:00:00:00:00 destination MAC. - */ -#define SJA1105_LINKLOCAL_FILTER_A 0x000000000000ull -#define SJA1105_LINKLOCAL_FILTER_A_MASK 0xFFFFFFFFFFFFull -#define SJA1105_LINKLOCAL_FILTER_B 0x000000000000ull -#define SJA1105_LINKLOCAL_FILTER_B_MASK 0xFFFFFFFFFFFFull +/* IEEE 802.3 Annex 57A: Slow Protocols PDUs (01:80:C2:xx:xx:xx) */ +#define SJA1105_LINKLOCAL_FILTER_A 0x0180C2000000ull +#define SJA1105_LINKLOCAL_FILTER_A_MASK 0xFFFFFF000000ull +/* IEEE 1588 Annex F: Transport of PTP over Ethernet (01:1B:19:xx:xx:xx) */ +#define SJA1105_LINKLOCAL_FILTER_B 0x011B19000000ull +#define SJA1105_LINKLOCAL_FILTER_B_MASK 0xFFFFFF000000ull + +enum sja1105_frame_type { + SJA1105_FRAME_TYPE_NORMAL = 0, + SJA1105_FRAME_TYPE_LINK_LOCAL, +}; + +struct sja1105_skb_cb { + enum sja1105_frame_type type; +}; + +#define SJA1105_SKB_CB(skb) \ + ((struct sja1105_skb_cb *)DSA_SKB_CB_PRIV(skb)) + +struct sja1105_port { + struct dsa_port *dp; + int mgmt_slot; +}; #endif /* _NET_DSA_SJA1105_H */ -- cgit v1.2.3 From c671b6dede27f8a73b0f3554630ba0ed436f357d Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Mon, 29 Apr 2019 13:14:26 +0800 Subject: mmc: alcor: work with multiple-entry sglists DMA on this hardware is limited to dealing with a 4096 bytes at a time. Previously, the driver was set up accordingly to request single-page DMA buffers, however that had the effect of generating a large number of small MMC requests for data I/O. Improve the driver to accept multi-entry scatter-gather lists. The size of each entry is already capped to 4096 bytes (AU6601_MAX_DMA_BLOCK_SIZE), matching the hardware requirements. Existing driver code already iterates through remaining sglist entries after each DMA transfer is complete. Also add some comments to help clarify the situation, and clear up some of the confusion I had regarding DMA vs PIO. Testing with dd, this increases write performance from 2mb/sec to 10mb/sec, and increases read performance from 4mb/sec to 14mb/sec. Signed-off-by: Daniel Drake Link: http://lkml.kernel.org/r/CAD8Lp47JYdZzbV9F+asNwvSfLF_po_J7ir6R_Vb-Dab21_=Krw@mail.gmail.com Signed-off-by: Ulf Hansson --- include/linux/alcor_pci.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/alcor_pci.h b/include/linux/alcor_pci.h index da973e8a2da8..4416df597526 100644 --- a/include/linux/alcor_pci.h +++ b/include/linux/alcor_pci.h @@ -23,7 +23,7 @@ #define AU6601_BASE_CLOCK 31000000 #define AU6601_MIN_CLOCK 150000 #define AU6601_MAX_CLOCK 208000000 -#define AU6601_MAX_DMA_SEGMENTS 1 +#define AU6601_MAX_DMA_SEGMENTS 64 #define AU6601_MAX_PIO_SEGMENTS 1 #define AU6601_MAX_DMA_BLOCK_SIZE 0x1000 #define AU6601_MAX_PIO_BLOCK_SIZE 0x200 -- cgit v1.2.3 From f991de53a8abef21fae3e31967cb4f6a75c070b5 Mon Sep 17 00:00:00 2001 From: Jean-Francois Dagenais Date: Thu, 18 Apr 2019 12:36:39 -0400 Subject: thermal: make device_register's type argument const ...because it can be, the buffer is strlcpy'd into a local buffer in a thermal struct member. Signed-off-by: Jean-Francois Dagenais Signed-off-by: Zhang Rui --- include/linux/thermal.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 5f4705f46c2f..42ddaafe7705 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -442,10 +442,10 @@ void thermal_zone_device_update(struct thermal_zone_device *, enum thermal_notify_event); void thermal_zone_set_trips(struct thermal_zone_device *); -struct thermal_cooling_device *thermal_cooling_device_register(char *, void *, - const struct thermal_cooling_device_ops *); +struct thermal_cooling_device *thermal_cooling_device_register(const char *, + void *, const struct thermal_cooling_device_ops *); struct thermal_cooling_device * -thermal_of_cooling_device_register(struct device_node *np, char *, void *, +thermal_of_cooling_device_register(struct device_node *np, const char *, void *, const struct thermal_cooling_device_ops *); void thermal_cooling_device_unregister(struct thermal_cooling_device *); struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name); -- cgit v1.2.3 From 13bf5ced93775ffccb53527a9d862e023a9daa03 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 25 Mar 2019 15:44:06 +0100 Subject: dma-mapping: add a Kconfig symbol to indicate arch_dma_prep_coherent presence Add a Kconfig symbol that indicates an architecture provides a arch_dma_prep_coherent implementation, and provide a stub otherwise. This will allow the generic dma-iommu code to use it while still allowing to be built for cache coherent architectures. Signed-off-by: Christoph Hellwig Reviewed-by: Robin Murphy --- include/linux/dma-noncoherent.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/dma-noncoherent.h b/include/linux/dma-noncoherent.h index 69b36ed31a99..9741767e400f 100644 --- a/include/linux/dma-noncoherent.h +++ b/include/linux/dma-noncoherent.h @@ -72,6 +72,12 @@ static inline void arch_sync_dma_for_cpu_all(struct device *dev) } #endif /* CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU_ALL */ +#ifdef CONFIG_ARCH_HAS_DMA_PREP_COHERENT void arch_dma_prep_coherent(struct page *page, size_t size); +#else +static inline void arch_dma_prep_coherent(struct page *page, size_t size) +{ +} +#endif /* CONFIG_ARCH_HAS_DMA_PREP_COHERENT */ #endif /* _LINUX_DMA_NONCOHERENT_H */ -- cgit v1.2.3 From 96b9c592def5d7203bdad1337d9c92a2183de5cb Mon Sep 17 00:00:00 2001 From: Roman Gushchin Date: Fri, 26 Apr 2019 10:59:45 -0700 Subject: cgroup: get rid of cgroup_freezer_frozen_exit() A task should never enter the exit path with the task->frozen bit set. Any frozen task must enter the signal handling loop and the only way to escape is through cgroup_leave_frozen(true), which unconditionally drops the task->frozen bit. So it means that cgroyp_freezer_frozen_exit() has zero chances to be called and has to be removed. Let's put a WARN_ON_ONCE() instead of the cgroup_freezer_frozen_exit() call to catch any potential leak of the task's frozen bit. Suggested-by: Oleg Nesterov Signed-off-by: Roman Gushchin Signed-off-by: Tejun Heo --- include/linux/cgroup.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 3e2efd412dfa..c0077adeea83 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -889,7 +889,7 @@ void cgroup_update_frozen(struct cgroup *cgrp); void cgroup_freeze(struct cgroup *cgrp, bool freeze); void cgroup_freezer_migrate_task(struct task_struct *task, struct cgroup *src, struct cgroup *dst); -void cgroup_freezer_frozen_exit(struct task_struct *task); + static inline bool cgroup_task_freeze(struct task_struct *task) { bool ret; -- cgit v1.2.3 From a14669ebc0e294f19b2290c294958b7741559d9d Mon Sep 17 00:00:00 2001 From: Igor Konopko Date: Sat, 4 May 2019 20:37:55 +0200 Subject: lightnvm: Inherit mdts from the parent nvme device MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Current lightnvm and pblk implementation does not care about NVMe max data transfer size, which can be smaller than 64*K=256K. There are existing NVMe controllers which NVMe max data transfer size is lower that 256K (for example 128K, which happens for existing NVMe controllers which are NVMe spec compliant). Such a controllers are not able to handle command which contains 64 PPAs, since the the size of DMAed buffer will be above the capabilities of such a controller. Signed-off-by: Igor Konopko Reviewed-by: Hans Holmberg Reviewed-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- include/linux/lightnvm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index 5d865a5d5cdc..d3b02708e5f0 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -358,6 +358,7 @@ struct nvm_geo { u16 csecs; /* sector size */ u16 sos; /* out-of-band area size */ bool ext; /* metadata in extended data buffer */ + u32 mdts; /* Max data transfer size*/ /* device write constrains */ u32 ws_min; /* minimum write size */ -- cgit v1.2.3 From e69397ea05ce0263e3ee72fa8f6f70d2d9a561a7 Mon Sep 17 00:00:00 2001 From: Igor Konopko Date: Sat, 4 May 2019 20:38:08 +0200 Subject: lightnvm: track inflight target creations MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When creation process is still in progress, target is not yet on targets list. This causes a chance for removing whole lightnvm subsystem by calling nvm_unregister() in the meantime and finally by causing kernel panic inside target init function. This patch changes the behaviour by adding kref variable which tracks all the users of nvm_dev structure. When nvm_dev is allocated, kref value is set to 1. Then before every target creation the value is increased and decreased after target removal. The extra reference is decreased when nvm subsystem is unregistered. Signed-off-by: Igor Konopko Reviewed-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- include/linux/lightnvm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index d3b02708e5f0..4d0d5655c7b2 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -428,6 +428,7 @@ struct nvm_dev { char name[DISK_NAME_LEN]; void *private_data; + struct kref ref; void *rmap; struct mutex mlock; -- cgit v1.2.3 From e80a91ad302b3b66822756afc61f9f9c1658b9c9 Mon Sep 17 00:00:00 2001 From: Srinath Mannam Date: Fri, 3 May 2019 19:35:32 +0530 Subject: PCI: Add dma_ranges window list Add a dma_ranges field in PCI host bridge structure to hold resource entries list of memory regions in sorted order representing memory ranges that can be accessed through DMA transactions. Based-on-a-patch-by: Oza Pawandeep Signed-off-by: Srinath Mannam [lorenzo.pieralisi@arm.com: updated commit log] Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Reviewed-by: Oza Pawandeep Acked-by: Bjorn Helgaas --- include/linux/pci.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pci.h b/include/linux/pci.h index 77448215ef5b..bba0a29a5066 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -490,6 +490,7 @@ struct pci_host_bridge { void *sysdata; int busnr; struct list_head windows; /* resource_entry */ + struct list_head dma_ranges; /* dma ranges resource list */ u8 (*swizzle_irq)(struct pci_dev *, u8 *); /* Platform IRQ swizzler */ int (*map_irq)(const struct pci_dev *, u8, u8); void (*release_fn)(struct pci_host_bridge *); -- cgit v1.2.3 From b3e5838252665ee4cfa76b82bdf1198dca81e5be Mon Sep 17 00:00:00 2001 From: Christian Brauner Date: Wed, 27 Mar 2019 13:04:15 +0100 Subject: clone: add CLONE_PIDFD This patchset makes it possible to retrieve pid file descriptors at process creation time by introducing the new flag CLONE_PIDFD to the clone() system call. Linus originally suggested to implement this as a new flag to clone() instead of making it a separate system call. As spotted by Linus, there is exactly one bit for clone() left. CLONE_PIDFD creates file descriptors based on the anonymous inode implementation in the kernel that will also be used to implement the new mount api. They serve as a simple opaque handle on pids. Logically, this makes it possible to interpret a pidfd differently, narrowing or widening the scope of various operations (e.g. signal sending). Thus, a pidfd cannot just refer to a tgid, but also a tid, or in theory - given appropriate flag arguments in relevant syscalls - a process group or session. A pidfd does not represent a privilege. This does not imply it cannot ever be that way but for now this is not the case. A pidfd comes with additional information in fdinfo if the kernel supports procfs. The fdinfo file contains the pid of the process in the callers pid namespace in the same format as the procfs status file, i.e. "Pid:\t%d". As suggested by Oleg, with CLONE_PIDFD the pidfd is returned in the parent_tidptr argument of clone. This has the advantage that we can give back the associated pid and the pidfd at the same time. To remove worries about missing metadata access this patchset comes with a sample program that illustrates how a combination of CLONE_PIDFD, and pidfd_send_signal() can be used to gain race-free access to process metadata through /proc/. The sample program can easily be translated into a helper that would be suitable for inclusion in libc so that users don't have to worry about writing it themselves. Suggested-by: Linus Torvalds Signed-off-by: Christian Brauner Co-developed-by: Jann Horn Signed-off-by: Jann Horn Reviewed-by: Oleg Nesterov Cc: Arnd Bergmann Cc: "Eric W. Biederman" Cc: Kees Cook Cc: Thomas Gleixner Cc: David Howells Cc: "Michael Kerrisk (man-pages)" Cc: Andy Lutomirsky Cc: Andrew Morton Cc: Aleksa Sarai Cc: Linus Torvalds Cc: Al Viro --- include/linux/pid.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pid.h b/include/linux/pid.h index b6f4ba16065a..3c8ef5a199ca 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h @@ -66,6 +66,8 @@ struct pid extern struct pid init_struct_pid; +extern const struct file_operations pidfd_fops; + static inline struct pid *get_pid(struct pid *pid) { if (pid) -- cgit v1.2.3 From 898490c010b5d2e499e03b7e815fc214209ac583 Mon Sep 17 00:00:00 2001 From: Alexey Gladkov Date: Mon, 29 Apr 2019 18:11:14 +0200 Subject: moduleparam: Save information about built-in modules in separate file Problem: When a kernel module is compiled as a separate module, some important information about the kernel module is available via .modinfo section of the module. In contrast, when the kernel module is compiled into the kernel, that information is not available. Information about built-in modules is necessary in the following cases: 1. When it is necessary to find out what additional parameters can be passed to the kernel at boot time. 2. When you need to know which module names and their aliases are in the kernel. This is very useful for creating an initrd image. Proposal: The proposed patch does not remove .modinfo section with module information from the vmlinux at the build time and saves it into a separate file after kernel linking. So, the kernel does not increase in size and no additional information remains in it. Information is stored in the same format as in the separate modules (null-terminated string array). Because the .modinfo section is already exported with a separate modules, we are not creating a new API. It can be easily read in the userspace: $ tr '\0' '\n' < modules.builtin.modinfo ext4.softdep=pre: crc32c ext4.license=GPL ext4.description=Fourth Extended Filesystem ext4.author=Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others ext4.alias=fs-ext4 ext4.alias=ext3 ext4.alias=fs-ext3 ext4.alias=ext2 ext4.alias=fs-ext2 md_mod.alias=block-major-9-* md_mod.alias=md md_mod.description=MD RAID framework md_mod.license=GPL md_mod.parmtype=create_on_open:bool md_mod.parmtype=start_dirty_degraded:int ... Co-Developed-by: Gleb Fotengauer-Malinovskiy Signed-off-by: Gleb Fotengauer-Malinovskiy Signed-off-by: Alexey Gladkov Acked-by: Jessica Yu Signed-off-by: Masahiro Yamada --- include/linux/module.h | 1 + include/linux/moduleparam.h | 12 +++++------- 2 files changed, 6 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/module.h b/include/linux/module.h index 5bf5dcd91009..5f7007430d35 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -253,6 +253,7 @@ extern typeof(name) __mod_##type##__##name##_device_table \ #define MODULE_VERSION(_version) MODULE_INFO(version, _version) #else #define MODULE_VERSION(_version) \ + MODULE_INFO(version, _version); \ static struct module_version_attribute ___modver_attr = { \ .mattr = { \ .attr = { \ diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h index ba36506db4fb..5ba250d9172a 100644 --- a/include/linux/moduleparam.h +++ b/include/linux/moduleparam.h @@ -10,23 +10,21 @@ module name. */ #ifdef MODULE #define MODULE_PARAM_PREFIX /* empty */ +#define __MODULE_INFO_PREFIX /* empty */ #else #define MODULE_PARAM_PREFIX KBUILD_MODNAME "." +/* We cannot use MODULE_PARAM_PREFIX because some modules override it. */ +#define __MODULE_INFO_PREFIX KBUILD_MODNAME "." #endif /* Chosen so that structs with an unsigned long line up. */ #define MAX_PARAM_PREFIX_LEN (64 - sizeof(unsigned long)) -#ifdef MODULE #define __MODULE_INFO(tag, name, info) \ static const char __UNIQUE_ID(name)[] \ __used __attribute__((section(".modinfo"), unused, aligned(1))) \ - = __stringify(tag) "=" info -#else /* !MODULE */ -/* This struct is here for syntactic coherency, it is not used */ -#define __MODULE_INFO(tag, name, info) \ - struct __UNIQUE_ID(name) {} -#endif + = __MODULE_INFO_PREFIX __stringify(tag) "=" info + #define __MODULE_PARM_TYPE(name, _type) \ __MODULE_INFO(parmtype, name##type, #name ":" _type) -- cgit v1.2.3 From b8753433fc611e23e31300e1d099001a08955c88 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 7 May 2019 08:53:35 +0200 Subject: block: fix mismerge in bvec_advance When Jens merged my commit to only allow contiguous page structs in a bio_vec with Ming's 5.1 fix to ensue the bvec length didn't overflow we failed to keep the removal of the expensive nth_page calls. This commits adds them back as intended. Fixes: 5c61ee2cd586 ("Merge tag 'v5.1-rc6' into for-5.2/block") Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/bvec.h | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bvec.h b/include/linux/bvec.h index 545a480528e0..a032f01e928c 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -133,11 +133,6 @@ static inline struct bio_vec *bvec_init_iter_all(struct bvec_iter_all *iter_all) return &iter_all->bv; } -static inline struct page *bvec_nth_page(struct page *page, int idx) -{ - return idx == 0 ? page : nth_page(page, idx); -} - static inline void bvec_advance(const struct bio_vec *bvec, struct bvec_iter_all *iter_all) { @@ -147,8 +142,7 @@ static inline void bvec_advance(const struct bio_vec *bvec, bv->bv_page++; bv->bv_offset = 0; } else { - bv->bv_page = bvec_nth_page(bvec->bv_page, bvec->bv_offset / - PAGE_SIZE); + bv->bv_page = bvec->bv_page + (bvec->bv_offset >> PAGE_SHIFT); bv->bv_offset = bvec->bv_offset & ~PAGE_MASK; } bv->bv_len = min_t(unsigned int, PAGE_SIZE - bv->bv_offset, -- cgit v1.2.3 From d2c4ada1ed883ea1310112965f2f1d713a470699 Mon Sep 17 00:00:00 2001 From: Gal Pressman Date: Mon, 6 May 2019 18:02:56 +0300 Subject: lib/scatterlist: Remove leftover from sg_page_iter comment Commit d901b2760dc6 ("lib/scatterlist: Provide a DMA page iterator") added the sg DMA iterator but a leftover remained in the sg_page_iter documentation as you cannot get the page dma address (only the page itself), fix it. Signed-off-by: Gal Pressman Reviewed-by: Mukesh Ojha Signed-off-by: Jason Gunthorpe --- include/linux/scatterlist.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index b4be960c7e5d..30a9a55c28ba 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -340,11 +340,11 @@ int sg_alloc_table_chained(struct sg_table *table, int nents, * sg page iterator * * Iterates over sg entries page-by-page. On each successful iteration, you - * can call sg_page_iter_page(@piter) to get the current page and its dma - * address. @piter->sg will point to the sg holding this page and - * @piter->sg_pgoffset to the page's page offset within the sg. The iteration - * will stop either when a maximum number of sg entries was reached or a - * terminating sg (sg_last(sg) == true) was reached. + * can call sg_page_iter_page(@piter) to get the current page. + * @piter->sg will point to the sg holding this page and @piter->sg_pgoffset to + * the page's page offset within the sg. The iteration will stop either when a + * maximum number of sg entries was reached or a terminating sg + * (sg_last(sg) == true) was reached. */ struct sg_page_iter { struct scatterlist *sg; /* sg holding the page */ -- cgit v1.2.3 From 570df4e9c23f861aa3f8f2954468c534a033bf1a Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Wed, 15 Nov 2017 17:39:40 +0800 Subject: ceph: snapshot nfs re-export To support snapshot nfs re-export, we need a way to lookup snapped inode by file handle. For directory inode, snapped metadata are always stored together with head inode. Client just need to pass vinodeno_t to MDS. For non-directory inode, there can be multiple version of snapped inodes and they can be stored in different dirfrags. Besides vinodeno_t, client also need to tell mds from which dirfrag it got the snapped inode. Another problem of supporting snapshot nfs re-export is that there can be multiple paths to access a snapped inode. For example: mkdir -p d1/d2/d3 mkdir d1/.snap/s1 Paths 'd1/.snap/s1/d2/d3', 'd1/d2/.snap/_s1_/d3' and 'd1/d2/d3/.snap/_s1_' are all reference to the same snapped inode. For a given snapped inode, There is no convenient way to get the first form and the second form paths. For simplicity, ceph_get_parent() return snapdir for snapped directory inode. Furthermore, client may access snapshot of deleted directory. For example: mkdir -p d1/d2 mkdir d1/.snap/s1 open d1/.snap/s1/d2 rm -rf d1/d2 The path constucted by ceph_get_parent() and ceph_get_name() is '/.snap/_s1_'. Futher lookup parent of will fail. To workaround this case, this patch uses d_obtain_root() to get dentry for snapdir of deleted directory. snapdir dentry has no DCACHE_DISCONNECTED flag set, reconnect_path() stops when it reaches snapdir dentry. Link: http://tracker.ceph.com/issues/22105 Signed-off-by: "Yan, Zheng" Signed-off-by: Ilya Dryomov --- include/linux/ceph/ceph_fs.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h index 4903deb0777a..3ac0feaf2b5e 100644 --- a/include/linux/ceph/ceph_fs.h +++ b/include/linux/ceph/ceph_fs.h @@ -436,6 +436,12 @@ union ceph_mds_request_args { __le64 length; /* num bytes to lock from start */ __u8 wait; /* will caller wait for lock to become available? */ } __attribute__ ((packed)) filelock_change; + struct { + __le32 mask; /* CEPH_CAP_* */ + __le64 snapid; + __le64 parent; + __le32 hash; + } __attribute__ ((packed)) lookupino; } __attribute__ ((packed)); #define CEPH_MDS_FLAG_REPLAY 1 /* this is a replayed op */ -- cgit v1.2.3 From 0384892c2d839033566b53453be44b1f5812cd00 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 25 Mar 2019 13:51:43 +0100 Subject: libceph: fix clang warning for CEPH_DEFINE_OID_ONSTACK clang complains about assigning a variable to itself during the declaration: fs/ceph/ioctl.c:187:26: error: variable 'oid' is uninitialized when used within its own initialization [-Werror,-Wuninitialized] CEPH_DEFINE_OID_ONSTACK(oid); ^~~ include/linux/ceph/osdmap.h:122:52: note: expanded from macro 'CEPH_DEFINE_OID_ONSTACK' struct ceph_object_id oid = CEPH_OID_INIT_ONSTACK(oid) ~~~ ^~~ include/linux/ceph/osdmap.h:120:29: note: expanded from macro 'CEPH_OID_INIT_ONSTACK' ({ ceph_oid_init(&oid); oid; }) ^~~ We use this trick in other places, but it is completely unnecessary here, as we can just use a regular struct initializer. Signed-off-by: Arnd Bergmann Reviewed-by: Ilya Dryomov Signed-off-by: Ilya Dryomov --- include/linux/ceph/osdmap.h | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h index 5675b1f09bc5..e081b56f1c1d 100644 --- a/include/linux/ceph/osdmap.h +++ b/include/linux/ceph/osdmap.h @@ -110,17 +110,16 @@ struct ceph_object_id { int name_len; }; +#define __CEPH_OID_INITIALIZER(oid) { .name = (oid).inline_name } + +#define CEPH_DEFINE_OID_ONSTACK(oid) \ + struct ceph_object_id oid = __CEPH_OID_INITIALIZER(oid) + static inline void ceph_oid_init(struct ceph_object_id *oid) { - oid->name = oid->inline_name; - oid->name_len = 0; + *oid = (struct ceph_object_id) __CEPH_OID_INITIALIZER(*oid); } -#define CEPH_OID_INIT_ONSTACK(oid) \ - ({ ceph_oid_init(&oid); oid; }) -#define CEPH_DEFINE_OID_ONSTACK(oid) \ - struct ceph_object_id oid = CEPH_OID_INIT_ONSTACK(oid) - static inline bool ceph_oid_empty(const struct ceph_object_id *oid) { return oid->name == oid->inline_name && !oid->name_len; -- cgit v1.2.3 From 50732af3b65691666c32fe89808545134c1ee2a0 Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Tue, 30 Apr 2019 17:49:30 -0500 Subject: vfio/mdev: Drop redundant extern for exported symbols There is no need use 'extern' for exported functions. Acked-by: Cornelia Huck Reviewed-by: Maxim Levitsky Signed-off-by: Parav Pandit Signed-off-by: Alex Williamson --- include/linux/mdev.h | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mdev.h b/include/linux/mdev.h index d7aee90e5da5..4924d8038814 100644 --- a/include/linux/mdev.h +++ b/include/linux/mdev.h @@ -118,21 +118,20 @@ struct mdev_driver { #define to_mdev_driver(drv) container_of(drv, struct mdev_driver, driver) -extern void *mdev_get_drvdata(struct mdev_device *mdev); -extern void mdev_set_drvdata(struct mdev_device *mdev, void *data); -extern const guid_t *mdev_uuid(struct mdev_device *mdev); +void *mdev_get_drvdata(struct mdev_device *mdev); +void mdev_set_drvdata(struct mdev_device *mdev, void *data); +const guid_t *mdev_uuid(struct mdev_device *mdev); extern struct bus_type mdev_bus_type; -extern int mdev_register_device(struct device *dev, - const struct mdev_parent_ops *ops); -extern void mdev_unregister_device(struct device *dev); +int mdev_register_device(struct device *dev, const struct mdev_parent_ops *ops); +void mdev_unregister_device(struct device *dev); -extern int mdev_register_driver(struct mdev_driver *drv, struct module *owner); -extern void mdev_unregister_driver(struct mdev_driver *drv); +int mdev_register_driver(struct mdev_driver *drv, struct module *owner); +void mdev_unregister_driver(struct mdev_driver *drv); -extern struct device *mdev_parent_dev(struct mdev_device *mdev); -extern struct device *mdev_dev(struct mdev_device *mdev); -extern struct mdev_device *mdev_from_dev(struct device *dev); +struct device *mdev_parent_dev(struct mdev_device *mdev); +struct device *mdev_dev(struct mdev_device *mdev); +struct mdev_device *mdev_from_dev(struct device *dev); #endif /* MDEV_H */ -- cgit v1.2.3 From b726ec972cf2122137fbc47847b4fcc7b3bc2801 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 6 May 2019 09:38:47 -0400 Subject: libceph: make ceph_pr_addr take an struct ceph_entity_addr pointer GCC9 is throwing a lot of warnings about unaligned accesses by callers of ceph_pr_addr. All of the current callers are passing a pointer to the sockaddr inside struct ceph_entity_addr. Fix it to take a pointer to a struct ceph_entity_addr instead, and then have the function make a copy of the sockaddr before printing it. Signed-off-by: Jeff Layton Reviewed-by: Ilya Dryomov Signed-off-by: Ilya Dryomov --- include/linux/ceph/messenger.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h index 800a2128d411..23895d178149 100644 --- a/include/linux/ceph/messenger.h +++ b/include/linux/ceph/messenger.h @@ -323,7 +323,8 @@ struct ceph_connection { }; -extern const char *ceph_pr_addr(const struct sockaddr_storage *ss); +extern const char *ceph_pr_addr(const struct ceph_entity_addr *addr); + extern int ceph_parse_ips(const char *c, const char *end, struct ceph_entity_addr *addr, int max_count, int *count); -- cgit v1.2.3 From eea2c05d927b031034e222110a4fc34914d97ca4 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Tue, 26 Mar 2019 08:52:31 +0100 Subject: ubifs: Remove #ifdef around CONFIG_FS_ENCRYPTION ifdefs reduce readablity and compile coverage. This removes the ifdefs around CONFIG_FS_ENCRYPTION by using IS_ENABLED and relying on static inline wrappers. A new static inline wrapper for setting sb->s_cop is introduced to allow filesystems to unconditionally compile in their s_cop operations. Signed-off-by: Sascha Hauer Signed-off-by: Richard Weinberger --- include/linux/fscrypt.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux') diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h index e5194fc3983e..9a5792dac16a 100644 --- a/include/linux/fscrypt.h +++ b/include/linux/fscrypt.h @@ -230,6 +230,11 @@ extern int __fscrypt_encrypt_symlink(struct inode *inode, const char *target, extern const char *fscrypt_get_symlink(struct inode *inode, const void *caddr, unsigned int max_size, struct delayed_call *done); +static inline void fscrypt_set_ops(struct super_block *sb, + const struct fscrypt_operations *s_cop) +{ + sb->s_cop = s_cop; +} #else /* !CONFIG_FS_ENCRYPTION */ static inline bool fscrypt_has_encryption_key(const struct inode *inode) @@ -446,6 +451,12 @@ static inline const char *fscrypt_get_symlink(struct inode *inode, { return ERR_PTR(-EOPNOTSUPP); } + +static inline void fscrypt_set_ops(struct super_block *sb, + const struct fscrypt_operations *s_cop) +{ +} + #endif /* !CONFIG_FS_ENCRYPTION */ /** -- cgit v1.2.3 From 7e756f423af808b6571fed3144747db2ef7fa1c5 Mon Sep 17 00:00:00 2001 From: Vasily Gorbik Date: Tue, 7 May 2019 16:28:15 +0200 Subject: latent_entropy: avoid build error when plugin cflags are not set Some architectures set up CFLAGS for linux decompressor phase from scratch and do not include GCC_PLUGINS_CFLAGS. Since "latent_entropy" variable declaration is generated by the plugin code itself including linux/random.h in decompressor code then would cause a build error. E.g. on s390: In file included from ./include/linux/net.h:22, from ./include/linux/skbuff.h:29, from ./include/linux/if_ether.h:23, from ./arch/s390/include/asm/diag.h:12, from arch/s390/boot/startup.c:8: ./include/linux/random.h: In function 'add_latent_entropy': ./include/linux/random.h:26:39: error: 'latent_entropy' undeclared (first use in this function); did you mean 'add_latent_entropy'? 26 | add_device_randomness((const void *)&latent_entropy, | ^~~~~~~~~~~~~~ | add_latent_entropy ./include/linux/random.h:26:39: note: each undeclared identifier is reported only once for each function it appears in The build error is triggered by commit a80313ff91ab ("s390/kernel: introduce .dma sections") which made it into 5.2 merge window. To address that avoid using CONFIG_GCC_PLUGIN_LATENT_ENTROPY in favour of LATENT_ENTROPY_PLUGIN definition which is defined as a part of gcc plugins cflags and hence reflect more accurately when gcc plugin is active. Besides that it is also used for similar purpose in linux/compiler-gcc.h for latent_entropy attribute definition. Signed-off-by: Vasily Gorbik Acked-by: Kees Cook Signed-off-by: Martin Schwidefsky --- include/linux/random.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/random.h b/include/linux/random.h index 445a0ea4ff49..d4eb9b3789ad 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -20,7 +20,7 @@ struct random_ready_callback { extern void add_device_randomness(const void *, unsigned int); -#if defined(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) && !defined(__CHECKER__) +#if defined(LATENT_ENTROPY_PLUGIN) && !defined(__CHECKER__) static inline void add_latent_entropy(void) { add_device_randomness((const void *)&latent_entropy, -- cgit v1.2.3 From ea611d1cc180fbb56982c83cd5142a2b34881f5c Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko Date: Sun, 5 May 2019 18:43:22 +0300 Subject: mfd: max77620: Fix swapped FPS_PERIOD_MAX_US values The FPS_PERIOD_MAX_US definitions are swapped for MAX20024 and MAX77620, fix it. Cc: stable Signed-off-by: Dmitry Osipenko Signed-off-by: Lee Jones --- include/linux/mfd/max77620.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/max77620.h b/include/linux/mfd/max77620.h index ad2a9a852aea..b4fd5a7c2aaa 100644 --- a/include/linux/mfd/max77620.h +++ b/include/linux/mfd/max77620.h @@ -136,8 +136,8 @@ #define MAX77620_FPS_PERIOD_MIN_US 40 #define MAX20024_FPS_PERIOD_MIN_US 20 -#define MAX77620_FPS_PERIOD_MAX_US 2560 -#define MAX20024_FPS_PERIOD_MAX_US 5120 +#define MAX20024_FPS_PERIOD_MAX_US 2560 +#define MAX77620_FPS_PERIOD_MAX_US 5120 #define MAX77620_REG_FPS_GPIO1 0x54 #define MAX77620_REG_FPS_GPIO2 0x55 -- cgit v1.2.3 From 4c58f7012f15a71f05cd447f7658a61376d11591 Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko Date: Sun, 5 May 2019 18:43:23 +0300 Subject: mfd: max77620: Support Maxim 77663 Add support for Maxim 77663 using the Max77620 driver. The hardware is very similar to Max77663/20024, although there are couple minor differences. Signed-off-by: Dmitry Osipenko Signed-off-by: Lee Jones --- include/linux/mfd/max77620.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mfd/max77620.h b/include/linux/mfd/max77620.h index b4fd5a7c2aaa..82407fe85ca2 100644 --- a/include/linux/mfd/max77620.h +++ b/include/linux/mfd/max77620.h @@ -324,6 +324,7 @@ enum max77620_fps_src { enum max77620_chip_id { MAX77620, MAX20024, + MAX77663, }; struct max77620_chip { -- cgit v1.2.3 From a01ab0669ddf652f521630129e614c16542994b0 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Tue, 30 Apr 2019 16:16:51 +0200 Subject: rtc: drop set_mms and set_mmss64 There are no users of set_mms and set_mmss64 as they have all been converted to set_time and are handling the tm to time conversion on their own. Signed-off-by: Alexandre Belloni --- include/linux/rtc.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 48d3f8e0b64f..df666cf29ef1 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -79,8 +79,6 @@ struct rtc_class_ops { int (*read_alarm)(struct device *, struct rtc_wkalrm *); int (*set_alarm)(struct device *, struct rtc_wkalrm *); int (*proc)(struct device *, struct seq_file *); - int (*set_mmss64)(struct device *, time64_t secs); - int (*set_mmss)(struct device *, unsigned long secs); int (*alarm_irq_enable)(struct device *, unsigned int enabled); int (*read_offset)(struct device *, long *offset); int (*set_offset)(struct device *, long offset); -- cgit v1.2.3 From 487579bab867e739be3d2c0064ad3af1221482c8 Mon Sep 17 00:00:00 2001 From: Chris Chiu Date: Thu, 18 Apr 2019 14:46:48 +0800 Subject: platform/x86: asus-wmi: Add fn-lock mode switch support Some of latest ASUS laptops support new fn-lock mode switching. This commit detect whether if the fn-lock option is enabled in BIOS setting, and toggle the fn-lock mode via a new WMI DEVID 0x00100023 when the corresponding notify code captured. The ASUS fn-lock mode switch is activated by pressing Fn+Esc. When on, keys F1 to F12 behave as applicable, with meanings defined by the application being used at the time. When off, F1 to F12 directly triggers hardware features, well known audio volume up/down, brightness up/down...etc, which were triggered by holding down Fn key and F-keys. Because there's no way to retrieve the fn-lock mode via existing WMI methods per ASUS spec, driver need to initialize and keep the fn-lock mode by itself. Signed-off-by: Chris Chiu Reviewed-by: Daniel Drake Signed-off-by: Andy Shevchenko --- include/linux/platform_data/x86/asus-wmi.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h index 53dfc2541960..bfba245636a7 100644 --- a/include/linux/platform_data/x86/asus-wmi.h +++ b/include/linux/platform_data/x86/asus-wmi.h @@ -67,6 +67,7 @@ /* Input */ #define ASUS_WMI_DEVID_TOUCHPAD 0x00100011 #define ASUS_WMI_DEVID_TOUCHPAD_LED 0x00100012 +#define ASUS_WMI_DEVID_FNLOCK 0x00100023 /* Fan, Thermal */ #define ASUS_WMI_DEVID_THERMAL_CTRL 0x00110011 -- cgit v1.2.3 From d02a6e6174a772fa90c5efa51a55a04e6d8c0006 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Mon, 25 Mar 2019 21:08:19 +0800 Subject: f2fs: allow address pointer number of dnode aligning to specified size This patch expands scalability of dnode layout, it allows address pointer number of dnode aligning to specified size (now, the size is one byte by default), and later the number can align to compress cluster size (1 << n bytes, n=[2,..)), it can avoid cluster acrossing two dnode, making design of compress meta layout simple. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- include/linux/f2fs_fs.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index f5740423b002..55da9abed023 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -198,11 +198,12 @@ struct f2fs_extent { get_extra_isize(inode)) #define DEF_NIDS_PER_INODE 5 /* Node IDs in an Inode */ #define ADDRS_PER_INODE(inode) addrs_per_inode(inode) -#define ADDRS_PER_BLOCK 1018 /* Address Pointers in a Direct Block */ +#define DEF_ADDRS_PER_BLOCK 1018 /* Address Pointers in a Direct Block */ +#define ADDRS_PER_BLOCK(inode) addrs_per_block(inode) #define NIDS_PER_BLOCK 1018 /* Node IDs in an Indirect Block */ #define ADDRS_PER_PAGE(page, inode) \ - (IS_INODE(page) ? ADDRS_PER_INODE(inode) : ADDRS_PER_BLOCK) + (IS_INODE(page) ? ADDRS_PER_INODE(inode) : ADDRS_PER_BLOCK(inode)) #define NODE_DIR1_BLOCK (DEF_ADDRS_PER_INODE + 1) #define NODE_DIR2_BLOCK (DEF_ADDRS_PER_INODE + 2) @@ -267,7 +268,7 @@ struct f2fs_inode { } __packed; struct direct_node { - __le32 addr[ADDRS_PER_BLOCK]; /* array of data block address */ + __le32 addr[DEF_ADDRS_PER_BLOCK]; /* array of data block address */ } __packed; struct indirect_node { -- cgit v1.2.3 From d7eb8f1cdfaefcd41b716ef0ed1745b43c6c4fc9 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Mon, 22 Apr 2019 17:33:52 +0800 Subject: f2fs: allow unfixed f2fs_checkpoint.checksum_offset Previously, f2fs_checkpoint.checksum_offset points fixed position of f2fs_checkpoint structure: "#define CP_CHKSUM_OFFSET 4092" It is unnecessary, and it breaks the consecutiveness of nat and sit bitmap stored across checkpoint park block and payload blocks. This patch allows f2fs to handle unfixed .checksum_offset. In addition, for the case checksum value is stored in the middle of checkpoint park, calculating checksum value with superposition method like we did for inode_checksum. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- include/linux/f2fs_fs.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index 55da9abed023..65559900d4d7 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -164,6 +164,10 @@ struct f2fs_checkpoint { unsigned char sit_nat_version_bitmap[1]; } __packed; +#define CP_CHKSUM_OFFSET 4092 /* default chksum offset in checkpoint */ +#define CP_MIN_CHKSUM_OFFSET \ + (offsetof(struct f2fs_checkpoint, sit_nat_version_bitmap)) + /* * For orphan inode management */ -- cgit v1.2.3 From 8fbbfd966efa67ef9aec37cb4ff412f9f26e1e84 Mon Sep 17 00:00:00 2001 From: Marek Behun Date: Sun, 31 Mar 2019 05:15:33 +0200 Subject: mailbox: Add support for Armada 37xx rWTM mailbox This adds support for the mailbox via which the kernel can communicate with the firmware running on the secure processor of the Armada 37xx SOC. The rWTM secure processor has access to internal eFuses and cryptographic circuits, such as the Entropy Bit Generator to generate true random numbers. Signed-off-by: Marek Behun Signed-off-by: Jassi Brar --- include/linux/armada-37xx-rwtm-mailbox.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 include/linux/armada-37xx-rwtm-mailbox.h (limited to 'include/linux') diff --git a/include/linux/armada-37xx-rwtm-mailbox.h b/include/linux/armada-37xx-rwtm-mailbox.h new file mode 100644 index 000000000000..57bb54f6767a --- /dev/null +++ b/include/linux/armada-37xx-rwtm-mailbox.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * rWTM BIU Mailbox driver for Armada 37xx + * + * Author: Marek Behun + */ + +#ifndef _LINUX_ARMADA_37XX_RWTM_MAILBOX_H_ +#define _LINUX_ARMADA_37XX_RWTM_MAILBOX_H_ + +#include + +struct armada_37xx_rwtm_tx_msg { + u16 command; + u32 args[16]; +}; + +struct armada_37xx_rwtm_rx_msg { + u32 retval; + u32 status[16]; +}; + +#endif /* _LINUX_ARMADA_37XX_RWTM_MAILBOX_H_ */ -- cgit v1.2.3 From 4d8e7055a4058ee191296699803c5090e14f0dff Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Sun, 5 May 2019 12:15:49 +0300 Subject: fsnotify: fix unlink performance regression __fsnotify_parent() has an optimization in place to avoid unneeded take_dentry_name_snapshot(). When fsnotify_nameremove() was changed not to call __fsnotify_parent(), we left out the optimization. Kernel test robot reported a 5% performance regression in concurrent unlink() workload. Reported-by: kernel test robot Link: https://lore.kernel.org/lkml/20190505062153.GG29809@shao2-debian/ Link: https://lore.kernel.org/linux-fsdevel/20190104090357.GD22409@quack2.suse.cz/ Fixes: 5f02a8776384 ("fsnotify: annotate directory entry modification events") CC: stable@vger.kernel.org Signed-off-by: Amir Goldstein Signed-off-by: Jan Kara --- include/linux/fsnotify.h | 33 --------------------------------- include/linux/fsnotify_backend.h | 4 ++++ 2 files changed, 4 insertions(+), 33 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h index 09587e2860b5..e30d6132c633 100644 --- a/include/linux/fsnotify.h +++ b/include/linux/fsnotify.h @@ -151,39 +151,6 @@ static inline void fsnotify_vfsmount_delete(struct vfsmount *mnt) __fsnotify_vfsmount_delete(mnt); } -/* - * fsnotify_nameremove - a filename was removed from a directory - * - * This is mostly called under parent vfs inode lock so name and - * dentry->d_parent should be stable. However there are some corner cases where - * inode lock is not held. So to be on the safe side and be reselient to future - * callers and out of tree users of d_delete(), we do not assume that d_parent - * and d_name are stable and we use dget_parent() and - * take_dentry_name_snapshot() to grab stable references. - */ -static inline void fsnotify_nameremove(struct dentry *dentry, int isdir) -{ - struct dentry *parent; - struct name_snapshot name; - __u32 mask = FS_DELETE; - - /* d_delete() of pseudo inode? (e.g. __ns_get_path() playing tricks) */ - if (IS_ROOT(dentry)) - return; - - if (isdir) - mask |= FS_ISDIR; - - parent = dget_parent(dentry); - take_dentry_name_snapshot(&name, dentry); - - fsnotify(d_inode(parent), mask, d_inode(dentry), FSNOTIFY_EVENT_INODE, - name.name, 0); - - release_dentry_name_snapshot(&name); - dput(parent); -} - /* * fsnotify_inoderemove - an inode is going away */ diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index dfc28fcb4de8..094b38f2d9a1 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -355,6 +355,7 @@ extern int __fsnotify_parent(const struct path *path, struct dentry *dentry, __u extern void __fsnotify_inode_delete(struct inode *inode); extern void __fsnotify_vfsmount_delete(struct vfsmount *mnt); extern void fsnotify_sb_delete(struct super_block *sb); +extern void fsnotify_nameremove(struct dentry *dentry, int isdir); extern u32 fsnotify_get_cookie(void); static inline int fsnotify_inode_watches_children(struct inode *inode) @@ -524,6 +525,9 @@ static inline void __fsnotify_vfsmount_delete(struct vfsmount *mnt) static inline void fsnotify_sb_delete(struct super_block *sb) {} +static inline void fsnotify_nameremove(struct dentry *dentry, int isdir) +{} + static inline void fsnotify_update_flags(struct dentry *dentry) {} -- cgit v1.2.3 From a15fd609ad53a631a927c6680e8fb606f42a712b Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 20 Mar 2019 10:26:17 -0700 Subject: tracing: Simplify "if" macro code Peter Zijlstra noticed that with CONFIG_PROFILE_ALL_BRANCHES, the "if" macro converts the conditional to an array index. This can cause GCC to create horrible code. When there are nested ifs, the generated code uses register values to encode branching decisions. Josh Poimboeuf found that replacing the define "if" macro from using the condition as an array index and incrementing the branch statics with an if statement itself, reduced the asm complexity and shrinks the generated code quite a bit. But this can be simplified even further by replacing the internal if statement with a ternary operator. Link: https://lkml.kernel.org/r/20190307174802.46fmpysxyo35hh43@treble Link: http://lkml.kernel.org/r/CAHk-=wiALN3jRuzARpwThN62iKd476Xj-uom+YnLZ4=eqcz7xQ@mail.gmail.com Reported-by: Peter Zijlstra (Intel) Reported-by: Josh Poimboeuf Signed-off-by: Linus Torvalds Signed-off-by: Steven Rostedt (VMware) --- include/linux/compiler.h | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-) (limited to 'include/linux') diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 445348facea9..8aaf7cd026b0 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -53,23 +53,24 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val, * "Define 'is'", Bill Clinton * "Define 'if'", Steven Rostedt */ -#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) -#define __trace_if(cond) \ - if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ - ({ \ - int ______r; \ - static struct ftrace_branch_data \ - __aligned(4) \ - __section("_ftrace_branch") \ - ______f = { \ - .func = __func__, \ - .file = __FILE__, \ - .line = __LINE__, \ - }; \ - ______r = !!(cond); \ - ______f.miss_hit[______r]++; \ - ______r; \ - })) +#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) + +#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) + +#define __trace_if_value(cond) ({ \ + static struct ftrace_branch_data \ + __aligned(4) \ + __section("_ftrace_branch") \ + __if_trace = { \ + .func = __func__, \ + .file = __FILE__, \ + .line = __LINE__, \ + }; \ + (cond) ? \ + (__if_trace.miss_hit[1]++,1) : \ + (__if_trace.miss_hit[0]++,0); \ +}) + #endif /* CONFIG_PROFILE_ALL_BRANCHES */ #else -- cgit v1.2.3 From a57140e9a850582ddafdd8f115b78713baaf0d00 Mon Sep 17 00:00:00 2001 From: Thomas Bogendoerfer Date: Tue, 7 May 2019 23:09:13 +0200 Subject: MIPS: SGI-IP27: use generic PCI driver Converted bridge code to a platform driver using the PCI generic driver framework and use adding platform devices during xtalk scan. This allows easier sharing bridge driver for other SGI platforms like IP30 (Octane) and IP35 (Origin 3k, Fuel, Tezro). Signed-off-by: Thomas Bogendoerfer [paul.burton@mips.com: - Leave __phys_to_dma(), __dma_to_phys() & pcibus_to_node() in arch/mips/pci/pci-ip27.c since the motivation for moving them disappeared when the driver stopped being moved to drivers/pci.] Signed-off-by: Paul Burton Cc: Ralf Baechle Cc: James Hogan Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- include/linux/platform_data/xtalk-bridge.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 include/linux/platform_data/xtalk-bridge.h (limited to 'include/linux') diff --git a/include/linux/platform_data/xtalk-bridge.h b/include/linux/platform_data/xtalk-bridge.h new file mode 100644 index 000000000000..51e5001f2c05 --- /dev/null +++ b/include/linux/platform_data/xtalk-bridge.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * SGI PCI Xtalk Bridge + */ + +#ifndef PLATFORM_DATA_XTALK_BRIDGE_H +#define PLATFORM_DATA_XTALK_BRIDGE_H + +#include + +struct xtalk_bridge_platform_data { + struct resource mem; + struct resource io; + unsigned long bridge_addr; + unsigned long intr_addr; + unsigned long mem_offset; + unsigned long io_offset; + nasid_t nasid; + int masterwid; +}; + +#endif /* PLATFORM_DATA_XTALK_BRIDGE_H */ -- cgit v1.2.3 From 06252ade91566574c900975037aaa33d6c4f9818 Mon Sep 17 00:00:00 2001 From: Amelie Delaunay Date: Thu, 9 May 2019 10:58:49 +0200 Subject: mfd: Add ST Multi-Function eXpander (STMFX) core driver STMicroelectronics Multi-Function eXpander (STMFX) is a slave controller using I2C for communication with the main MCU. Main features are: - 16 fast GPIOs individually configurable in input/output - 8 alternate GPIOs individually configurable in input/output when other STMFX functions are not used - Main MCU IDD measurement - Resistive touchscreen controller Signed-off-by: Amelie Delaunay Signed-off-by: Lee Jones --- include/linux/mfd/stmfx.h | 123 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 include/linux/mfd/stmfx.h (limited to 'include/linux') diff --git a/include/linux/mfd/stmfx.h b/include/linux/mfd/stmfx.h new file mode 100644 index 000000000000..d890595b89b6 --- /dev/null +++ b/include/linux/mfd/stmfx.h @@ -0,0 +1,123 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2019 STMicroelectronics + * Author(s): Amelie Delaunay . + */ + +#ifndef MFD_STMFX_H +#define MFX_STMFX_H + +#include + +/* General */ +#define STMFX_REG_CHIP_ID 0x00 /* R */ +#define STMFX_REG_FW_VERSION_MSB 0x01 /* R */ +#define STMFX_REG_FW_VERSION_LSB 0x02 /* R */ +#define STMFX_REG_SYS_CTRL 0x40 /* RW */ +/* IRQ output management */ +#define STMFX_REG_IRQ_OUT_PIN 0x41 /* RW */ +#define STMFX_REG_IRQ_SRC_EN 0x42 /* RW */ +#define STMFX_REG_IRQ_PENDING 0x08 /* R */ +#define STMFX_REG_IRQ_ACK 0x44 /* RW */ +/* GPIO management */ +#define STMFX_REG_IRQ_GPI_PENDING1 0x0C /* R */ +#define STMFX_REG_IRQ_GPI_PENDING2 0x0D /* R */ +#define STMFX_REG_IRQ_GPI_PENDING3 0x0E /* R */ +#define STMFX_REG_GPIO_STATE1 0x10 /* R */ +#define STMFX_REG_GPIO_STATE2 0x11 /* R */ +#define STMFX_REG_GPIO_STATE3 0x12 /* R */ +#define STMFX_REG_IRQ_GPI_SRC1 0x48 /* RW */ +#define STMFX_REG_IRQ_GPI_SRC2 0x49 /* RW */ +#define STMFX_REG_IRQ_GPI_SRC3 0x4A /* RW */ +#define STMFX_REG_IRQ_GPI_EVT1 0x4C /* RW */ +#define STMFX_REG_IRQ_GPI_EVT2 0x4D /* RW */ +#define STMFX_REG_IRQ_GPI_EVT3 0x4E /* RW */ +#define STMFX_REG_IRQ_GPI_TYPE1 0x50 /* RW */ +#define STMFX_REG_IRQ_GPI_TYPE2 0x51 /* RW */ +#define STMFX_REG_IRQ_GPI_TYPE3 0x52 /* RW */ +#define STMFX_REG_IRQ_GPI_ACK1 0x54 /* RW */ +#define STMFX_REG_IRQ_GPI_ACK2 0x55 /* RW */ +#define STMFX_REG_IRQ_GPI_ACK3 0x56 /* RW */ +#define STMFX_REG_GPIO_DIR1 0x60 /* RW */ +#define STMFX_REG_GPIO_DIR2 0x61 /* RW */ +#define STMFX_REG_GPIO_DIR3 0x62 /* RW */ +#define STMFX_REG_GPIO_TYPE1 0x64 /* RW */ +#define STMFX_REG_GPIO_TYPE2 0x65 /* RW */ +#define STMFX_REG_GPIO_TYPE3 0x66 /* RW */ +#define STMFX_REG_GPIO_PUPD1 0x68 /* RW */ +#define STMFX_REG_GPIO_PUPD2 0x69 /* RW */ +#define STMFX_REG_GPIO_PUPD3 0x6A /* RW */ +#define STMFX_REG_GPO_SET1 0x6C /* RW */ +#define STMFX_REG_GPO_SET2 0x6D /* RW */ +#define STMFX_REG_GPO_SET3 0x6E /* RW */ +#define STMFX_REG_GPO_CLR1 0x70 /* RW */ +#define STMFX_REG_GPO_CLR2 0x71 /* RW */ +#define STMFX_REG_GPO_CLR3 0x72 /* RW */ + +#define STMFX_REG_MAX 0xB0 + +/* MFX boot time is around 10ms, so after reset, we have to wait this delay */ +#define STMFX_BOOT_TIME_MS 10 + +/* STMFX_REG_CHIP_ID bitfields */ +#define STMFX_REG_CHIP_ID_MASK GENMASK(7, 0) + +/* STMFX_REG_SYS_CTRL bitfields */ +#define STMFX_REG_SYS_CTRL_GPIO_EN BIT(0) +#define STMFX_REG_SYS_CTRL_TS_EN BIT(1) +#define STMFX_REG_SYS_CTRL_IDD_EN BIT(2) +#define STMFX_REG_SYS_CTRL_ALTGPIO_EN BIT(3) +#define STMFX_REG_SYS_CTRL_SWRST BIT(7) + +/* STMFX_REG_IRQ_OUT_PIN bitfields */ +#define STMFX_REG_IRQ_OUT_PIN_TYPE BIT(0) /* 0-OD 1-PP */ +#define STMFX_REG_IRQ_OUT_PIN_POL BIT(1) /* 0-active LOW 1-active HIGH */ + +/* STMFX_REG_IRQ_(SRC_EN/PENDING/ACK) bit shift */ +enum stmfx_irqs { + STMFX_REG_IRQ_SRC_EN_GPIO = 0, + STMFX_REG_IRQ_SRC_EN_IDD, + STMFX_REG_IRQ_SRC_EN_ERROR, + STMFX_REG_IRQ_SRC_EN_TS_DET, + STMFX_REG_IRQ_SRC_EN_TS_NE, + STMFX_REG_IRQ_SRC_EN_TS_TH, + STMFX_REG_IRQ_SRC_EN_TS_FULL, + STMFX_REG_IRQ_SRC_EN_TS_OVF, + STMFX_REG_IRQ_SRC_MAX, +}; + +enum stmfx_functions { + STMFX_FUNC_GPIO = BIT(0), /* GPIO[15:0] */ + STMFX_FUNC_ALTGPIO_LOW = BIT(1), /* aGPIO[3:0] */ + STMFX_FUNC_ALTGPIO_HIGH = BIT(2), /* aGPIO[7:4] */ + STMFX_FUNC_TS = BIT(3), + STMFX_FUNC_IDD = BIT(4), +}; + +/** + * struct stmfx_ddata - STMFX MFD structure + * @device: device reference used for logs + * @map: register map + * @vdd: STMFX power supply + * @irq_domain: IRQ domain + * @lock: IRQ bus lock + * @irq_src: cache of IRQ_SRC_EN register for bus_lock + * @bkp_sysctrl: backup of SYS_CTRL register for suspend/resume + * @bkp_irqoutpin: backup of IRQ_OUT_PIN register for suspend/resume + */ +struct stmfx { + struct device *dev; + struct regmap *map; + struct regulator *vdd; + struct irq_domain *irq_domain; + struct mutex lock; /* IRQ bus lock */ + u8 irq_src; +#ifdef CONFIG_PM + u8 bkp_sysctrl; + u8 bkp_irqoutpin; +#endif +}; + +int stmfx_function_enable(struct stmfx *stmfx, u32 func); +int stmfx_function_disable(struct stmfx *stmfx, u32 func); +#endif -- cgit v1.2.3 From df24014abe3694e7c34ce5e50248611b7a93fe83 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 29 Apr 2019 15:03:58 +0530 Subject: cpufreq: Call transition notifier only once for each policy Currently, the notifiers are called once for each CPU of the policy->cpus cpumask. It would be more optimal if the notifier can be called only once and all the relevant information be provided to it. Out of the 23 drivers that register for the transition notifiers today, only 4 of them do per-cpu updates and the callback for the rest can be called only once for the policy without any impact. This would also avoid multiple function calls to the notifier callbacks and reduce multiple iterations of notifier core's code (which does locking as well). This patch adds pointer to the cpufreq policy to the struct cpufreq_freqs, so the notifier callback has all the information available to it with a single call. The five drivers which perform per-cpu updates are updated to use the cpufreq policy. The freqs->cpu field is redundant now and is removed. Acked-by: David S. Miller (sparc) Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 684caf067003..d01a74fbc4db 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -42,13 +42,6 @@ enum cpufreq_table_sorting { CPUFREQ_TABLE_SORTED_DESCENDING }; -struct cpufreq_freqs { - unsigned int cpu; /* cpu nr */ - unsigned int old; - unsigned int new; - u8 flags; /* flags of cpufreq_driver, see below. */ -}; - struct cpufreq_cpuinfo { unsigned int max_freq; unsigned int min_freq; @@ -156,6 +149,13 @@ struct cpufreq_policy { struct thermal_cooling_device *cdev; }; +struct cpufreq_freqs { + struct cpufreq_policy *policy; + unsigned int old; + unsigned int new; + u8 flags; /* flags of cpufreq_driver, see below. */ +}; + /* Only for ACPI */ #define CPUFREQ_SHARED_TYPE_NONE (0) /* None */ #define CPUFREQ_SHARED_TYPE_HW (1) /* HW does needed coordination */ -- cgit v1.2.3 From 0d52154bb0a700abb459a2cbce0a30fc2549b67e Mon Sep 17 00:00:00 2001 From: Chengguang Xu Date: Fri, 10 May 2019 21:15:47 -0400 Subject: jbd2: fix potential double free When failing from creating cache jbd2_inode_cache, we will destroy the previously created cache jbd2_handle_cache twice. This patch fixes this by moving each cache initialization/destruction to its own separate, individual function. Signed-off-by: Chengguang Xu Signed-off-by: Theodore Ts'o Cc: stable@kernel.org --- include/linux/jbd2.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 0f919d5fe84f..2cf6e04b08fc 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1318,7 +1318,7 @@ extern void __wait_on_journal (journal_t *); /* Transaction cache support */ extern void jbd2_journal_destroy_transaction_cache(void); -extern int jbd2_journal_init_transaction_cache(void); +extern int __init jbd2_journal_init_transaction_cache(void); extern void jbd2_journal_free_transaction(transaction_t *); /* @@ -1446,8 +1446,10 @@ static inline void jbd2_free_inode(struct jbd2_inode *jinode) /* Primary revoke support */ #define JOURNAL_REVOKE_DEFAULT_HASH 256 extern int jbd2_journal_init_revoke(journal_t *, int); -extern void jbd2_journal_destroy_revoke_caches(void); -extern int jbd2_journal_init_revoke_caches(void); +extern void jbd2_journal_destroy_revoke_record_cache(void); +extern void jbd2_journal_destroy_revoke_table_cache(void); +extern int __init jbd2_journal_init_revoke_record_cache(void); +extern int __init jbd2_journal_init_revoke_table_cache(void); extern void jbd2_journal_destroy_revoke(journal_t *); extern int jbd2_journal_revoke (handle_t *, unsigned long long, struct buffer_head *); -- cgit v1.2.3 From f35f54f11f7f96dc6d43fa79c4a7297a9115627f Mon Sep 17 00:00:00 2001 From: Halil Pasic Date: Fri, 26 Apr 2019 20:32:37 +0200 Subject: virtio/s390: DMA support for virtio-ccw Currently virtio-ccw devices do not work if the device has VIRTIO_F_IOMMU_PLATFORM. In future we do want to support DMA API with virtio-ccw. Let us do the plumbing, so the feature VIRTIO_F_IOMMU_PLATFORM works with virtio-ccw. Let us also switch from legacy avail/used accessors to the DMA aware ones (even if it isn't strictly necessary), and remove the legacy accessors (we were the last users). Signed-off-by: Halil Pasic Signed-off-by: Michael S. Tsirkin Reviewed-by: Cornelia Huck --- include/linux/virtio.h | 17 ----------------- 1 file changed, 17 deletions(-) (limited to 'include/linux') diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 673fe3ef3607..15f906e4a748 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -90,23 +90,6 @@ dma_addr_t virtqueue_get_desc_addr(struct virtqueue *vq); dma_addr_t virtqueue_get_avail_addr(struct virtqueue *vq); dma_addr_t virtqueue_get_used_addr(struct virtqueue *vq); -/* - * Legacy accessors -- in almost all cases, these are the wrong functions - * to use. - */ -static inline void *virtqueue_get_desc(struct virtqueue *vq) -{ - return virtqueue_get_vring(vq)->desc; -} -static inline void *virtqueue_get_avail(struct virtqueue *vq) -{ - return virtqueue_get_vring(vq)->avail; -} -static inline void *virtqueue_get_used(struct virtqueue *vq) -{ - return virtqueue_get_vring(vq)->used; -} - /** * virtio_device - representation of a device using virtio * @index: unique position on the virtio bus -- cgit v1.2.3 From ed61e18a4b4e445ae8622a4faec6a259601cc4a5 Mon Sep 17 00:00:00 2001 From: Leonard Crestez Date: Tue, 30 Apr 2019 15:06:11 +0000 Subject: PM / Domains: Add GENPD_FLAG_RPM_ALWAYS_ON flag This is for power domains which can only be powered off for suspend but not as part of runtime PM. Suggested-by: Ulf Hansson Signed-off-by: Leonard Crestez Reviewed-by: Ulf Hansson Signed-off-by: Rafael J. Wysocki --- include/linux/pm_domain.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 0e8e356bed6a..b21f35f0ee2e 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -53,12 +53,16 @@ * driver must then comply with the so called, * last-man-standing algorithm, for the CPUs in the * PM domain. + * + * GENPD_FLAG_RPM_ALWAYS_ON: Instructs genpd to always keep the PM domain + * powered on except for system suspend. */ #define GENPD_FLAG_PM_CLK (1U << 0) #define GENPD_FLAG_IRQ_SAFE (1U << 1) #define GENPD_FLAG_ALWAYS_ON (1U << 2) #define GENPD_FLAG_ACTIVE_WAKEUP (1U << 3) #define GENPD_FLAG_CPU_DOMAIN (1U << 4) +#define GENPD_FLAG_RPM_ALWAYS_ON (1U << 5) enum gpd_status { GPD_STATE_ACTIVE = 0, /* PM domain is active */ -- cgit v1.2.3 From d4cee9509e508df34d1dbfad6b42e5bf907d20fd Mon Sep 17 00:00:00 2001 From: Rushikesh S Kadam Date: Fri, 1 Mar 2019 13:50:54 +0530 Subject: mfd: cros_ec: Instantiate properly CrOS ISH MCU device Integrated Sensor Hub (ISH) is also a MCU running EC having feature bit EC_FEATURE_ISH. Instantiate it as a special CrOS EC device with device name 'cros_ish'. Signed-off-by: Rushikesh S Kadam Reviewed-by: Andy Shevchenko Acked-by: Enric Balletbo i Serra Reviewed-by: Gwendal Grignou Signed-off-by: Lee Jones --- include/linux/mfd/cros_ec.h | 1 + include/linux/mfd/cros_ec_commands.h | 2 ++ 2 files changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h index 8f2a8918bfa3..109292a60499 100644 --- a/include/linux/mfd/cros_ec.h +++ b/include/linux/mfd/cros_ec.h @@ -24,6 +24,7 @@ #define CROS_EC_DEV_NAME "cros_ec" #define CROS_EC_DEV_PD_NAME "cros_pd" +#define CROS_EC_DEV_ISH_NAME "cros_ish" /* * The EC is unresponsive for a time after a reboot command. Add a diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h index fc91082d4c35..43bee4f7d137 100644 --- a/include/linux/mfd/cros_ec_commands.h +++ b/include/linux/mfd/cros_ec_commands.h @@ -856,6 +856,8 @@ enum ec_feature_code { EC_FEATURE_RTC = 27, /* EC supports CEC commands */ EC_FEATURE_CEC = 35, + /* The MCU is an Integrated Sensor Hub */ + EC_FEATURE_ISH = 40, }; #define EC_FEATURE_MASK_0(event_code) (1UL << (event_code % 32)) -- cgit v1.2.3 From 9efbc6f175c017324befce493d2962109a216552 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Mon, 18 Mar 2019 16:57:24 +0100 Subject: mfd: da9063: Convert headers to SPDX Covnert the headers of the source and include files to SPDX. And fix some typos in the descriptions ("interrupt" instead of "I2C"). Signed-off-by: Wolfram Sang Acked-by: Steve Twiss Reviewed-by: Simon Horman Signed-off-by: Lee Jones --- include/linux/mfd/da9063/core.h | 7 +------ include/linux/mfd/da9063/registers.h | 7 +------ 2 files changed, 2 insertions(+), 12 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/da9063/core.h b/include/linux/mfd/da9063/core.h index 71b09154e2db..5cd06ab26352 100644 --- a/include/linux/mfd/da9063/core.h +++ b/include/linux/mfd/da9063/core.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Definitions for DA9063 MFD driver * @@ -5,12 +6,6 @@ * * Author: Michal Hajduk, Dialog Semiconductor * Author: Krystian Garbaciak, Dialog Semiconductor - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_DA9063_CORE_H__ diff --git a/include/linux/mfd/da9063/registers.h b/include/linux/mfd/da9063/registers.h index 5d42859cb441..272f984b766d 100644 --- a/include/linux/mfd/da9063/registers.h +++ b/include/linux/mfd/da9063/registers.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Registers definition for DA9063 modules * @@ -5,12 +6,6 @@ * * Author: Michal Hajduk, Dialog Semiconductor * Author: Krystian Garbaciak, Dialog Semiconductor - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef _DA9063_REG_H -- cgit v1.2.3 From 993c0ba7e410bb7fc62d3dc89c842a7a9d031384 Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Wed, 13 Feb 2019 09:00:11 +0000 Subject: mfd: syscon: atmel: Switch to SPDX license identifiers Adopt the SPDX license identifiers to ease license compliance management. Signed-off-by: Tudor Ambarus Signed-off-by: Lee Jones --- include/linux/mfd/syscon/atmel-matrix.h | 6 +----- include/linux/mfd/syscon/atmel-mc.h | 6 +----- include/linux/mfd/syscon/atmel-smc.h | 5 +---- include/linux/mfd/syscon/atmel-st.h | 6 +----- 4 files changed, 4 insertions(+), 19 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/syscon/atmel-matrix.h b/include/linux/mfd/syscon/atmel-matrix.h index 8293c3e2a82a..f61cd127a852 100644 --- a/include/linux/mfd/syscon/atmel-matrix.h +++ b/include/linux/mfd/syscon/atmel-matrix.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright (C) 2014 Atmel Corporation. * * Memory Controllers (MATRIX, EBI) - System peripherals registers. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef _LINUX_MFD_SYSCON_ATMEL_MATRIX_H diff --git a/include/linux/mfd/syscon/atmel-mc.h b/include/linux/mfd/syscon/atmel-mc.h index afd9b8f1e363..99c56205c410 100644 --- a/include/linux/mfd/syscon/atmel-mc.h +++ b/include/linux/mfd/syscon/atmel-mc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright (C) 2005 Ivan Kokshaysky * Copyright (C) SAN People @@ -5,11 +6,6 @@ * Memory Controllers (MC, EBI, SMC, SDRAMC, BFC) - System peripherals * registers. * Based on AT91RM9200 datasheet revision E. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef _LINUX_MFD_SYSCON_ATMEL_MC_H_ diff --git a/include/linux/mfd/syscon/atmel-smc.h b/include/linux/mfd/syscon/atmel-smc.h index 7a367f34b66a..e9e24f4c4578 100644 --- a/include/linux/mfd/syscon/atmel-smc.h +++ b/include/linux/mfd/syscon/atmel-smc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Atmel SMC (Static Memory Controller) register offsets and bit definitions. * @@ -5,10 +6,6 @@ * Copyright (C) 2014 Free Electrons * * Author: Boris Brezillon - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _LINUX_MFD_SYSCON_ATMEL_SMC_H_ diff --git a/include/linux/mfd/syscon/atmel-st.h b/include/linux/mfd/syscon/atmel-st.h index 8acf1ec1fa32..5b6013d0c440 100644 --- a/include/linux/mfd/syscon/atmel-st.h +++ b/include/linux/mfd/syscon/atmel-st.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright (C) 2005 Ivan Kokshaysky * Copyright (C) SAN People * * System Timer (ST) - System peripherals registers. * Based on AT91RM9200 datasheet revision E. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef _LINUX_MFD_SYSCON_ATMEL_ST_H -- cgit v1.2.3 From afe2bb5c4b6227a347be60c70df2890c3f57553d Mon Sep 17 00:00:00 2001 From: Evan Green Date: Wed, 3 Apr 2019 14:34:27 -0700 Subject: mfd: cros_ec: Add host_sleep_event_v1 command Introduce the command and response structures for the second revision of the host sleep event. These structures are part of a new EC change that enables detection of failure to enter S0ix. The EC waits a kernel-specified timeout (or a default amount of time) for the S0_SLP pin to change, and wakes the system if that change does not occur in time. Signed-off-by: Evan Green Reviewed-by: Rajat Jain Reviewed-by: Guenter Roeck Acked-by: Enric Balletbo i Serra Signed-off-by: Lee Jones --- include/linux/mfd/cros_ec_commands.h | 57 ++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h index 43bee4f7d137..0e91f13dd4bf 100644 --- a/include/linux/mfd/cros_ec_commands.h +++ b/include/linux/mfd/cros_ec_commands.h @@ -2731,6 +2731,63 @@ struct ec_params_host_sleep_event { uint8_t sleep_event; } __packed; +/* + * Use a default timeout value (CONFIG_SLEEP_TIMEOUT_MS) for detecting sleep + * transition failures + */ +#define EC_HOST_SLEEP_TIMEOUT_DEFAULT 0 + +/* Disable timeout detection for this sleep transition */ +#define EC_HOST_SLEEP_TIMEOUT_INFINITE 0xFFFF + +struct ec_params_host_sleep_event_v1 { + /* The type of sleep being entered or exited. */ + uint8_t sleep_event; + + /* Padding */ + uint8_t reserved; + union { + /* Parameters that apply for suspend messages. */ + struct { + /* + * The timeout in milliseconds between when this message + * is received and when the EC will declare sleep + * transition failure if the sleep signal is not + * asserted. + */ + uint16_t sleep_timeout_ms; + } suspend_params; + + /* No parameters for non-suspend messages. */ + }; +} __packed; + +/* A timeout occurred when this bit is set */ +#define EC_HOST_RESUME_SLEEP_TIMEOUT 0x80000000 + +/* + * The mask defining which bits correspond to the number of sleep transitions, + * as well as the maximum number of suspend line transitions that will be + * reported back to the host. + */ +#define EC_HOST_RESUME_SLEEP_TRANSITIONS_MASK 0x7FFFFFFF + +struct ec_response_host_sleep_event_v1 { + union { + /* Response fields that apply for resume messages. */ + struct { + /* + * The number of sleep power signal transitions that + * occurred since the suspend message. The high bit + * indicates a timeout occurred. + */ + uint32_t sleep_transitions; + } resume_response; + + /* No response fields for non-resume messages. */ + }; +} __packed; + /*****************************************************************************/ /* Smart battery pass-through */ -- cgit v1.2.3 From 7235560ac77a2516b84b86946debaa4fb951ed9b Mon Sep 17 00:00:00 2001 From: Evan Green Date: Wed, 3 Apr 2019 14:34:28 -0700 Subject: platform/chrome: Add support for v1 of host sleep event Add support in code for the new forms of the host sleep event. Detects the presence of this version of the command at runtime, and use whichever form the EC supports. At this time, always request the default timeout, and only report the failing response via a WARN_ONCE(). Future versions could accept the sleep parameter from outside the driver, and return the response information to usermode or elsewhere. Signed-off-by: Evan Green Reviewed-by: Rajat Jain Reviewed-by: Guenter Roeck Acked-by: Enric Balletbo i Serra Signed-off-by: Lee Jones --- include/linux/mfd/cros_ec.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h index 109292a60499..31c88a0070a3 100644 --- a/include/linux/mfd/cros_ec.h +++ b/include/linux/mfd/cros_ec.h @@ -121,6 +121,7 @@ struct cros_ec_command { * @pkt_xfer: Send packet to EC and get response. * @lock: One transaction at a time. * @mkbp_event_supported: True if this EC supports the MKBP event protocol. + * @host_sleep_v1: True if this EC supports the sleep v1 command. * @event_notifier: Interrupt event notifier for transport devices. * @event_data: Raw payload transferred with the MKBP event. * @event_size: Size in bytes of the event data. @@ -154,6 +155,7 @@ struct cros_ec_device { struct cros_ec_command *msg); struct mutex lock; bool mkbp_event_supported; + bool host_sleep_v1; struct blocking_notifier_head event_notifier; struct ec_response_get_next_event_v1 event_data; -- cgit v1.2.3 From 6b4814a9451add06d457e198be418bf6a3e6a990 Mon Sep 17 00:00:00 2001 From: Steve Twiss Date: Fri, 26 Apr 2019 14:33:35 +0100 Subject: mfd: da9063: Fix OTP control register names to match datasheets for DA9063/63L Mismatch between what is found in the Datasheets for DA9063 and DA9063L provided by Dialog Semiconductor, and the register names provided in the MFD registers file. The changes are for the OTP (one-time-programming) control registers. The two naming errors are OPT instead of OTP, and COUNT instead of CONT (i.e. control). Cc: Stable Signed-off-by: Steve Twiss Signed-off-by: Lee Jones --- include/linux/mfd/da9063/registers.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/da9063/registers.h b/include/linux/mfd/da9063/registers.h index 272f984b766d..ba706b0e28c2 100644 --- a/include/linux/mfd/da9063/registers.h +++ b/include/linux/mfd/da9063/registers.h @@ -210,9 +210,9 @@ /* DA9063 Configuration registers */ /* OTP */ -#define DA9063_REG_OPT_COUNT 0x101 -#define DA9063_REG_OPT_ADDR 0x102 -#define DA9063_REG_OPT_DATA 0x103 +#define DA9063_REG_OTP_CONT 0x101 +#define DA9063_REG_OTP_ADDR 0x102 +#define DA9063_REG_OTP_DATA 0x103 /* Customer Trim and Configuration */ #define DA9063_REG_T_OFFSET 0x104 -- cgit v1.2.3 From 13d72945323c33680433bc92ffe1465a59599993 Mon Sep 17 00:00:00 2001 From: "S.j. Wang" Date: Sun, 28 Apr 2019 09:52:48 +0000 Subject: mfd: imx6sx: Add MQS register definition for iomuxc gpr Add macros to define masks and bits for imx6sx MQS registers Signed-off-by: Shengjiu Wang Signed-off-by: Lee Jones --- include/linux/mfd/syscon/imx6q-iomuxc-gpr.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h index c1b25f5e386d..f232c8130d00 100644 --- a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h +++ b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h @@ -410,6 +410,15 @@ #define IMX6SX_GPR1_FEC_CLOCK_PAD_DIR_MASK (0x3 << 17) #define IMX6SX_GPR1_FEC_CLOCK_MUX_SEL_EXT (0x3 << 13) +#define IMX6SX_GPR2_MQS_OVERSAMPLE_MASK (0x1 << 26) +#define IMX6SX_GPR2_MQS_OVERSAMPLE_SHIFT (26) +#define IMX6SX_GPR2_MQS_EN_MASK (0x1 << 25) +#define IMX6SX_GPR2_MQS_EN_SHIFT (25) +#define IMX6SX_GPR2_MQS_SW_RST_MASK (0x1 << 24) +#define IMX6SX_GPR2_MQS_SW_RST_SHIFT (24) +#define IMX6SX_GPR2_MQS_CLK_DIV_MASK (0xFF << 16) +#define IMX6SX_GPR2_MQS_CLK_DIV_SHIFT (16) + #define IMX6SX_GPR4_FEC_ENET1_STOP_REQ (0x1 << 3) #define IMX6SX_GPR4_FEC_ENET2_STOP_REQ (0x1 << 4) -- cgit v1.2.3 From 93abf68b6bcb50481d84db41e4d7e7e143f24757 Mon Sep 17 00:00:00 2001 From: Enric Balletbo i Serra Date: Wed, 8 May 2019 11:19:54 +0200 Subject: mfd: cros_ec: Update the EC feature codes Update the feature enum for the Chromebook Embedded Controller to the latest version. Some of these enums are still not used in the kernel but we might be also interested on have these enums up to date. Userspace can use them to query the features to the EC via the cros-ec character device. While here, also fix a typo in one comment in the enum. Signed-off-by: Enric Balletbo i Serra Signed-off-by: Lee Jones --- include/linux/mfd/cros_ec_commands.h | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h index 0e91f13dd4bf..dcec96f01879 100644 --- a/include/linux/mfd/cros_ec_commands.h +++ b/include/linux/mfd/cros_ec_commands.h @@ -840,7 +840,7 @@ enum ec_feature_code { * (Common Smart Battery System Interface Specification) */ EC_FEATURE_SMART_BATTERY = 18, - /* EC can dectect when the host hangs. */ + /* EC can detect when the host hangs. */ EC_FEATURE_HANG_DETECT = 19, /* Report power information, for pit only */ EC_FEATURE_PMU = 20, @@ -852,10 +852,40 @@ enum ec_feature_code { EC_FEATURE_USB_MUX = 23, /* Motion Sensor code has an internal software FIFO */ EC_FEATURE_MOTION_SENSE_FIFO = 24, + /* Support temporary secure vstore */ + EC_FEATURE_VSTORE = 25, + /* EC decides on USB-C SS mux state, muxes configured by host */ + EC_FEATURE_USBC_SS_MUX_VIRTUAL = 26, /* EC has RTC feature that can be controlled by host commands */ EC_FEATURE_RTC = 27, + /* The MCU exposes a Fingerprint sensor */ + EC_FEATURE_FINGERPRINT = 28, + /* The MCU exposes a Touchpad */ + EC_FEATURE_TOUCHPAD = 29, + /* The MCU has RWSIG task enabled */ + EC_FEATURE_RWSIG = 30, + /* EC has device events support */ + EC_FEATURE_DEVICE_EVENT = 31, + /* EC supports the unified wake masks for LPC/eSPI systems */ + EC_FEATURE_UNIFIED_WAKE_MASKS = 32, + /* EC supports 64-bit host events */ + EC_FEATURE_HOST_EVENT64 = 33, + /* EC runs code in RAM (not in place, a.k.a. XIP) */ + EC_FEATURE_EXEC_IN_RAM = 34, /* EC supports CEC commands */ EC_FEATURE_CEC = 35, + /* EC supports tight sensor timestamping. */ + EC_FEATURE_MOTION_SENSE_TIGHT_TIMESTAMPS = 36, + /* + * EC supports tablet mode detection aligned to Chrome and allows + * setting of threshold by host command using + * MOTIONSENSE_CMD_TABLET_MODE_LID_ANGLE. + */ + EC_FEATURE_REFINED_TABLET_MODE_HYSTERESIS = 37, + /* EC supports audio codec. */ + EC_FEATURE_AUDIO_CODEC = 38, + /* EC Supports SCP. */ + EC_FEATURE_SCP = 39, /* The MCU is an Integrated Sensor Hub */ EC_FEATURE_ISH = 40, }; -- cgit v1.2.3 From 90486af5e0f7334091b94264a84713611933e97e Mon Sep 17 00:00:00 2001 From: Enric Balletbo i Serra Date: Wed, 8 May 2019 11:19:55 +0200 Subject: mfd: cros_ec: Instantiate properly CrOS FP MCU device Support Fingerprint MCU as a special of CrOS EC devices. The current FP MCU uses the same EC SPI protocol v3 as other CrOS EC devices on a SPI bus. When a MCU has fingerprint support (aka EC_FEATURE_FINGERPRINT), it is instantiated as a special CrOS EC device with device name 'cros_fp'. So regardless of the probing order between the actual cros_ec and cros_fp, the userspace and other kernel drivers should not confuse them. Signed-off-by: Vincent Palatin Signed-off-by: Enric Balletbo i Serra Signed-off-by: Lee Jones --- include/linux/mfd/cros_ec.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h index 31c88a0070a3..276079699504 100644 --- a/include/linux/mfd/cros_ec.h +++ b/include/linux/mfd/cros_ec.h @@ -23,6 +23,7 @@ #include #define CROS_EC_DEV_NAME "cros_ec" +#define CROS_EC_DEV_FP_NAME "cros_fp" #define CROS_EC_DEV_PD_NAME "cros_pd" #define CROS_EC_DEV_ISH_NAME "cros_ish" -- cgit v1.2.3 From 4f8f2bb7ab032150ba94cf60ea5aaf3e3ac3d2ca Mon Sep 17 00:00:00 2001 From: Enric Balletbo i Serra Date: Wed, 8 May 2019 11:19:56 +0200 Subject: mfd: cros_ec: Instantiate properly CrOS Touchpad MCU device Support Touchpad MCU as a special of CrOS EC devices. The current Touchpad MCU is used on Eve Chromebook and used the same protocol as other CrOS EC devices. When a MCU has touchpad support (aka EC_FEATURE_TOUCHPAD), it is instantiated as a special CrOS EC device with device name 'cros_tp'. So regardless of the probing order between the actual cros_ec and cros_tp, the userspace and other kernel drivers should not confuse them. Signed-off-by: Wei-Ning Huang Signed-off-by: Enric Balletbo i Serra Signed-off-by: Lee Jones --- include/linux/mfd/cros_ec.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h index 276079699504..cfa78bb4990f 100644 --- a/include/linux/mfd/cros_ec.h +++ b/include/linux/mfd/cros_ec.h @@ -25,6 +25,7 @@ #define CROS_EC_DEV_NAME "cros_ec" #define CROS_EC_DEV_FP_NAME "cros_fp" #define CROS_EC_DEV_PD_NAME "cros_pd" +#define CROS_EC_DEV_TP_NAME "cros_tp" #define CROS_EC_DEV_ISH_NAME "cros_ish" /* -- cgit v1.2.3 From 8fbce8efe15cd2ca7a4947bc814f890dbe4e43d7 Mon Sep 17 00:00:00 2001 From: Brian Masney Date: Wed, 24 Apr 2019 05:25:05 -0400 Subject: backlight: lm3630a: Add firmware node support Add fwnode support to the lm3630a driver and optionally allow configuring the label, default brightness level, and maximum brightness level. The two outputs can be controlled by bank A and B independently or bank A can control both outputs. If the platform data was not configured, then the driver defaults to enabling both banks. This patch changes the default value to disable both banks before parsing the firmware node so that just a single bank can be enabled if desired. There are no in-tree users of this driver. Driver was tested on a LG Nexus 5 (hammerhead) phone. Signed-off-by: Brian Masney Reviewed-by: Dan Murphy Acked-by: Daniel Thompson Acked-by: Pavel Machek Signed-off-by: Lee Jones --- include/linux/platform_data/lm3630a_bl.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/lm3630a_bl.h b/include/linux/platform_data/lm3630a_bl.h index 7538e38e270b..762e68956f31 100644 --- a/include/linux/platform_data/lm3630a_bl.h +++ b/include/linux/platform_data/lm3630a_bl.h @@ -38,9 +38,11 @@ enum lm3630a_ledb_ctrl { #define LM3630A_MAX_BRIGHTNESS 255 /* + *@leda_label : optional led a label. *@leda_init_brt : led a init brightness. 4~255 *@leda_max_brt : led a max brightness. 4~255 *@leda_ctrl : led a disable, enable linear, enable exponential + *@ledb_label : optional led b label. *@ledb_init_brt : led b init brightness. 4~255 *@ledb_max_brt : led b max brightness. 4~255 *@ledb_ctrl : led b disable, enable linear, enable exponential @@ -50,10 +52,12 @@ enum lm3630a_ledb_ctrl { struct lm3630a_platform_data { /* led a config. */ + const char *leda_label; int leda_init_brt; int leda_max_brt; enum lm3630a_leda_ctrl leda_ctrl; /* led b config. */ + const char *ledb_label; int ledb_init_brt; int ledb_max_brt; enum lm3630a_ledb_ctrl ledb_ctrl; -- cgit v1.2.3 From c191f93454bcc92810b9c8cdb895a452a57948c2 Mon Sep 17 00:00:00 2001 From: Yishai Hadas Date: Tue, 14 May 2019 14:44:12 +0300 Subject: net/mlx5: Set completion EQs as shared resources Mark completion EQs as shared resources so that they can be used by CQs with uid != 0. Fixes: 7efce3691d33 ("IB/mlx5: Add obj create and destroy functionality") Signed-off-by: Yishai Hadas Signed-off-by: Saeed Mahameed Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- include/linux/mlx5/mlx5_ifc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 4b37519bd6a5..8bb9fe6e99d9 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -7302,7 +7302,7 @@ struct mlx5_ifc_create_eq_out_bits { struct mlx5_ifc_create_eq_in_bits { u8 opcode[0x10]; - u8 reserved_at_10[0x10]; + u8 uid[0x10]; u8 reserved_at_20[0x10]; u8 op_mod[0x10]; -- cgit v1.2.3 From b4ab114cc6a1bbf8ca1d9a2339f2b5b43374029b Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Thu, 18 Apr 2019 12:58:15 -0700 Subject: thermal: Introduce devm_thermal_of_cooling_device_register thermal_of_cooling_device_register() and thermal_cooling_device_register() are typically called from driver probe functions, and thermal_cooling_device_unregister() is called from remove functions. This makes both a perfect candidate for device managed functions. Introduce devm_thermal_of_cooling_device_register(). This function can also be used to replace thermal_cooling_device_register() by passing a NULL pointer as device node. The new function requires both struct device * and struct device_node * as parameters since the struct device_node * parameter is not always identical to dev->of_node. Don't introduce a device managed remove function since it is not needed at this point. Signed-off-by: Guenter Roeck Signed-off-by: Eduardo Valentin --- include/linux/thermal.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux') diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 5f4705f46c2f..4a22099ed8c0 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -447,6 +447,11 @@ struct thermal_cooling_device *thermal_cooling_device_register(char *, void *, struct thermal_cooling_device * thermal_of_cooling_device_register(struct device_node *np, char *, void *, const struct thermal_cooling_device_ops *); +struct thermal_cooling_device * +devm_thermal_of_cooling_device_register(struct device *dev, + struct device_node *np, + char *type, void *devdata, + const struct thermal_cooling_device_ops *ops); void thermal_cooling_device_unregister(struct thermal_cooling_device *); struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name); int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp); @@ -503,6 +508,14 @@ static inline struct thermal_cooling_device * thermal_of_cooling_device_register(struct device_node *np, char *type, void *devdata, const struct thermal_cooling_device_ops *ops) { return ERR_PTR(-ENODEV); } +static inline struct thermal_cooling_device * +devm_thermal_of_cooling_device_register(struct device *dev, + struct device_node *np, + char *type, void *devdata, + const struct thermal_cooling_device_ops *ops) +{ + return ERR_PTR(-ENODEV); +} static inline void thermal_cooling_device_unregister( struct thermal_cooling_device *cdev) { } -- cgit v1.2.3 From 9581ae4f0facf122a732841959812dea9ed2f422 Mon Sep 17 00:00:00 2001 From: Minwoo Im Date: Sat, 11 May 2019 22:42:54 +0900 Subject: nvme: fix typos in nvme status code values Fix typos in enumeration names for nvme status: s/ACIVATE/ACTIVATE/ s/INSUFFICENT/INSUFFICIENT/ Signed-off-by: Minwoo Im Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig --- include/linux/nvme.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/nvme.h b/include/linux/nvme.h index c40720cb59ac..8028adacaff3 100644 --- a/include/linux/nvme.h +++ b/include/linux/nvme.h @@ -1246,9 +1246,9 @@ enum { NVME_SC_FW_NEEDS_SUBSYS_RESET = 0x110, NVME_SC_FW_NEEDS_RESET = 0x111, NVME_SC_FW_NEEDS_MAX_TIME = 0x112, - NVME_SC_FW_ACIVATE_PROHIBITED = 0x113, + NVME_SC_FW_ACTIVATE_PROHIBITED = 0x113, NVME_SC_OVERLAPPING_RANGE = 0x114, - NVME_SC_NS_INSUFFICENT_CAP = 0x115, + NVME_SC_NS_INSUFFICIENT_CAP = 0x115, NVME_SC_NS_ID_UNAVAILABLE = 0x116, NVME_SC_NS_ALREADY_ATTACHED = 0x118, NVME_SC_NS_IS_PRIVATE = 0x119, -- cgit v1.2.3 From fce86ff5802bac3a7b19db171aa1949ef9caac31 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Mon, 13 May 2019 17:15:33 -0700 Subject: mm/huge_memory: fix vmf_insert_pfn_{pmd, pud}() crash, handle unaligned addresses Starting with c6f3c5ee40c1 ("mm/huge_memory.c: fix modifying of page protection by insert_pfn_pmd()") vmf_insert_pfn_pmd() internally calls pmdp_set_access_flags(). That helper enforces a pmd aligned @address argument via VM_BUG_ON() assertion. Update the implementation to take a 'struct vm_fault' argument directly and apply the address alignment fixup internally to fix crash signatures like: kernel BUG at arch/x86/mm/pgtable.c:515! invalid opcode: 0000 [#1] SMP NOPTI CPU: 51 PID: 43713 Comm: java Tainted: G OE 4.19.35 #1 [..] RIP: 0010:pmdp_set_access_flags+0x48/0x50 [..] Call Trace: vmf_insert_pfn_pmd+0x198/0x350 dax_iomap_fault+0xe82/0x1190 ext4_dax_huge_fault+0x103/0x1f0 ? __switch_to_asm+0x40/0x70 __handle_mm_fault+0x3f6/0x1370 ? __switch_to_asm+0x34/0x70 ? __switch_to_asm+0x40/0x70 handle_mm_fault+0xda/0x200 __do_page_fault+0x249/0x4f0 do_page_fault+0x32/0x110 ? page_fault+0x8/0x30 page_fault+0x1e/0x30 Link: http://lkml.kernel.org/r/155741946350.372037.11148198430068238140.stgit@dwillia2-desk3.amr.corp.intel.com Fixes: c6f3c5ee40c1 ("mm/huge_memory.c: fix modifying of page protection by insert_pfn_pmd()") Signed-off-by: Dan Williams Reported-by: Piotr Balcer Tested-by: Yan Ma Tested-by: Pankaj Gupta Reviewed-by: Matthew Wilcox Reviewed-by: Jan Kara Reviewed-by: Aneesh Kumar K.V Cc: Chandan Rajendra Cc: Souptick Joarder Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/huge_mm.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 381e872bfde0..7cd5c150c21d 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -47,10 +47,8 @@ extern bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr, extern int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd, unsigned long addr, pgprot_t newprot, int prot_numa); -vm_fault_t vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr, - pmd_t *pmd, pfn_t pfn, bool write); -vm_fault_t vmf_insert_pfn_pud(struct vm_area_struct *vma, unsigned long addr, - pud_t *pud, pfn_t pfn, bool write); +vm_fault_t vmf_insert_pfn_pmd(struct vm_fault *vmf, pfn_t pfn, bool write); +vm_fault_t vmf_insert_pfn_pud(struct vm_fault *vmf, pfn_t pfn, bool write); enum transparent_hugepage_flag { TRANSPARENT_HUGEPAGE_FLAG, TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG, -- cgit v1.2.3 From a16b53849913e742d086bb2b6f5e069ea2850c56 Mon Sep 17 00:00:00 2001 From: "Tobin C. Harding" Date: Mon, 13 May 2019 17:15:59 -0700 Subject: list: add function list_rotate_to_front() Patch series "mm: Use slab_list list_head instead of lru", v5. Currently the slab allocators (ab)use the struct page 'lru' list_head. We have a list head for slab allocators to use, 'slab_list'. During v2 it was noted by Christoph that the SLOB allocator was reaching into a list_head, this version adds 2 patches to the front of the set to fix that. Clean up all three allocators by using the 'slab_list' list_head instead of overloading the 'lru' list_head. This patch (of 7): Currently if we wish to rotate a list until a specific item is at the front of the list we can call list_move_tail(head, list). Note that the arguments are the reverse way to the usual use of list_move_tail(list, head). This is a hack, it depends on the developer knowing how the list_head operates internally which violates the layer of abstraction offered by the list_head. Also, it is not intuitive so the next developer to come along must study list.h in order to fully understand what is meant by the call, while this is 'good for' the developer it makes reading the code harder. We should have an function appropriately named that does this if there are users for it intree. By grep'ing the tree for list_move_tail() and list_tail() and attempting to guess the argument order from the names it seems there is only one place currently in the tree that does this - the slob allocatator. Add function list_rotate_to_front() to rotate a list until the specified item is at the front of the list. Link: http://lkml.kernel.org/r/20190402230545.2929-2-tobin@kernel.org Signed-off-by: Tobin C. Harding Reviewed-by: Christoph Lameter Reviewed-by: Roman Gushchin Acked-by: Vlastimil Babka Cc: Pekka Enberg Cc: David Rientjes Cc: Joonsoo Kim Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/list.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'include/linux') diff --git a/include/linux/list.h b/include/linux/list.h index 58aa3adf94e6..9e9a6403dbe4 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -270,6 +270,24 @@ static inline void list_rotate_left(struct list_head *head) } } +/** + * list_rotate_to_front() - Rotate list to specific item. + * @list: The desired new front of the list. + * @head: The head of the list. + * + * Rotates list so that @list becomes the new front of the list. + */ +static inline void list_rotate_to_front(struct list_head *list, + struct list_head *head) +{ + /* + * Deletes the list head from the list denoted by @head and + * places it as the tail of @list, this effectively rotates the + * list so that @list is at the front. + */ + list_move_tail(head, list); +} + /** * list_is_singular - tests whether a list has just one entry. * @head: the list to test. -- cgit v1.2.3 From 3e05617ceaa42838084daee209f9c4965bf03379 Mon Sep 17 00:00:00 2001 From: "Tobin C. Harding" Date: Mon, 13 May 2019 17:16:19 -0700 Subject: mm: remove stale comment from page struct We now use the slab_list list_head instead of the lru list_head. This comment has become stale. Remove stale comment from page struct slab_list list_head. Link: http://lkml.kernel.org/r/20190402230545.2929-8-tobin@kernel.org Signed-off-by: Tobin C. Harding Acked-by: Christoph Lameter Reviewed-by: Roman Gushchin Acked-by: Vlastimil Babka Cc: David Rientjes Cc: Joonsoo Kim Cc: Matthew Wilcox Cc: Pekka Enberg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm_types.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 4ef4bbe78a1d..e1f42a07d8f0 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -103,7 +103,7 @@ struct page { }; struct { /* slab, slob and slub */ union { - struct list_head slab_list; /* uses lru */ + struct list_head slab_list; struct { /* Partial pages */ struct page *next; #ifdef CONFIG_64BIT -- cgit v1.2.3 From cefdca0a86be517bc390fc4541e3674b8e7803b0 Mon Sep 17 00:00:00 2001 From: Peter Xu Date: Mon, 13 May 2019 17:16:41 -0700 Subject: userfaultfd/sysctl: add vm.unprivileged_userfaultfd Userfaultfd can be misued to make it easier to exploit existing use-after-free (and similar) bugs that might otherwise only make a short window or race condition available. By using userfaultfd to stall a kernel thread, a malicious program can keep some state that it wrote, stable for an extended period, which it can then access using an existing exploit. While it doesn't cause the exploit itself, and while it's not the only thing that can stall a kernel thread when accessing a memory location, it's one of the few that never needs privilege. We can add a flag, allowing userfaultfd to be restricted, so that in general it won't be useable by arbitrary user programs, but in environments that require userfaultfd it can be turned back on. Add a global sysctl knob "vm.unprivileged_userfaultfd" to control whether userfaultfd is allowed by unprivileged users. When this is set to zero, only privileged users (root user, or users with the CAP_SYS_PTRACE capability) will be able to use the userfaultfd syscalls. Andrea said: : The only difference between the bpf sysctl and the userfaultfd sysctl : this way is that the bpf sysctl adds the CAP_SYS_ADMIN capability : requirement, while userfaultfd adds the CAP_SYS_PTRACE requirement, : because the userfaultfd monitor is more likely to need CAP_SYS_PTRACE : already if it's doing other kind of tracking on processes runtime, in : addition of userfaultfd. In other words both syscalls works only for : root, when the two sysctl are opt-in set to 1. [dgilbert@redhat.com: changelog additions] [akpm@linux-foundation.org: documentation tweak, per Mike] Link: http://lkml.kernel.org/r/20190319030722.12441-2-peterx@redhat.com Signed-off-by: Peter Xu Suggested-by: Andrea Arcangeli Suggested-by: Mike Rapoport Reviewed-by: Mike Rapoport Reviewed-by: Andrea Arcangeli Cc: Paolo Bonzini Cc: Hugh Dickins Cc: Luis Chamberlain Cc: Maxime Coquelin Cc: Maya Gokhale Cc: Jerome Glisse Cc: Pavel Emelyanov Cc: Johannes Weiner Cc: Martin Cracauer Cc: Denis Plotnikov Cc: Marty McFadden Cc: Mike Kravetz Cc: Kees Cook Cc: Mel Gorman Cc: "Kirill A . Shutemov" Cc: "Dr . David Alan Gilbert" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/userfaultfd_k.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h index 37c9eba75c98..ac9d71e24b81 100644 --- a/include/linux/userfaultfd_k.h +++ b/include/linux/userfaultfd_k.h @@ -28,6 +28,8 @@ #define UFFD_SHARED_FCNTL_FLAGS (O_CLOEXEC | O_NONBLOCK) #define UFFD_FLAGS_SET (EFD_SHARED_FCNTL_FLAGS) +extern int sysctl_unprivileged_userfaultfd; + extern vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason); extern ssize_t mcopy_atomic(struct mm_struct *dst_mm, unsigned long dst_start, -- cgit v1.2.3 From 5fd4ca2d84b249f0858ce28cf637cf25b61a398f Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Mon, 13 May 2019 17:16:44 -0700 Subject: mm: page cache: store only head pages in i_pages Transparent Huge Pages are currently stored in i_pages as pointers to consecutive subpages. This patch changes that to storing consecutive pointers to the head page in preparation for storing huge pages more efficiently in i_pages. Large parts of this are "inspired" by Kirill's patch https://lore.kernel.org/lkml/20170126115819.58875-2-kirill.shutemov@linux.intel.com/ [willy@infradead.org: fix swapcache pages] Link: http://lkml.kernel.org/r/20190324155441.GF10344@bombadil.infradead.org [kirill@shutemov.name: hugetlb stores pages in page cache differently] Link: http://lkml.kernel.org/r/20190404134553.vuvhgmghlkiw2hgl@kshutemo-mobl1 Link: http://lkml.kernel.org/r/20190307153051.18815-1-willy@infradead.org Signed-off-by: Matthew Wilcox Acked-by: Jan Kara Reviewed-by: Kirill Shutemov Reviewed-and-tested-by: Song Liu Tested-by: William Kucharski Reviewed-by: William Kucharski Tested-by: Qian Cai Cc: Hugh Dickins Cc: Song Liu Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pagemap.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index bcf909d0de5f..2e8438a1216a 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -333,6 +333,19 @@ static inline struct page *grab_cache_page_nowait(struct address_space *mapping, mapping_gfp_mask(mapping)); } +static inline struct page *find_subpage(struct page *page, pgoff_t offset) +{ + unsigned long mask; + + if (PageHuge(page)) + return page; + + VM_BUG_ON_PAGE(PageTail(page), page); + + mask = (1UL << compound_order(page)) - 1; + return page + (offset & mask); +} + struct page *find_get_entry(struct address_space *mapping, pgoff_t offset); struct page *find_lock_entry(struct address_space *mapping, pgoff_t offset); unsigned find_get_entries(struct address_space *mapping, pgoff_t start, -- cgit v1.2.3 From 886cf1901db962cee5f8b82b9b260079a5e8a4eb Mon Sep 17 00:00:00 2001 From: Kirill Tkhai Date: Mon, 13 May 2019 17:16:51 -0700 Subject: mm: move recent_rotated pages calculation to shrink_inactive_list() Patch series "mm: Generalize putback functions"] putback_inactive_pages() and move_active_pages_to_lru() are almost similar, so this patchset merges them ina single function. This patch (of 4): The patch moves the calculation from putback_inactive_pages() to shrink_inactive_list(). This makes putback_inactive_pages() looking more similar to move_active_pages_to_lru(). To do that, we account activated pages in reclaim_stat::nr_activate. Since a page may change its LRU type from anon to file cache inside shrink_page_list() (see ClearPageSwapBacked()), we have to account pages for the both types. So, nr_activate becomes an array. Previously we used nr_activate to account PGACTIVATE events, but now we account them into pgactivate variable (since they are about number of pages in general, not about sum of hpage_nr_pages). Link: http://lkml.kernel.org/r/155290127956.31489.3393586616054413298.stgit@localhost.localdomain Signed-off-by: Kirill Tkhai Reviewed-by: Daniel Jordan Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/vmstat.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 2db8d60981fe..bdeda4b079fe 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -26,7 +26,7 @@ struct reclaim_stat { unsigned nr_congested; unsigned nr_writeback; unsigned nr_immediate; - unsigned nr_activate; + unsigned nr_activate[2]; unsigned nr_ref_keep; unsigned nr_unmap_fail; }; -- cgit v1.2.3 From 9851ac13592df77958ae7bac6ba39e71420c38ec Mon Sep 17 00:00:00 2001 From: Kirill Tkhai Date: Mon, 13 May 2019 17:16:54 -0700 Subject: mm: move nr_deactivate accounting to shrink_active_list() We know which LRU is not active. [chris@chrisdown.name: fix build on !CONFIG_MEMCG] Link: http://lkml.kernel.org/r/20190322150513.GA22021@chrisdown.name Link: http://lkml.kernel.org/r/155290128498.31489.18250485448913338607.stgit@localhost.localdomain Signed-off-by: Kirill Tkhai Signed-off-by: Chris Down Reviewed-by: Daniel Jordan Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index dbb6118370c1..b238403f95b2 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -1117,6 +1117,12 @@ static inline void count_memcg_events(struct mem_cgroup *memcg, { } +static inline void __count_memcg_events(struct mem_cgroup *memcg, + enum vm_event_item idx, + unsigned long count) +{ +} + static inline void count_memcg_page_event(struct page *page, int idx) { -- cgit v1.2.3 From 932f4a630a695212bdc7379b05f9bd0dafc5d968 Mon Sep 17 00:00:00 2001 From: Ira Weiny Date: Mon, 13 May 2019 17:17:03 -0700 Subject: mm/gup: replace get_user_pages_longterm() with FOLL_LONGTERM Pach series "Add FOLL_LONGTERM to GUP fast and use it". HFI1, qib, and mthca, use get_user_pages_fast() due to its performance advantages. These pages can be held for a significant time. But get_user_pages_fast() does not protect against mapping FS DAX pages. Introduce FOLL_LONGTERM and use this flag in get_user_pages_fast() which retains the performance while also adding the FS DAX checks. XDP has also shown interest in using this functionality.[1] In addition we change get_user_pages() to use the new FOLL_LONGTERM flag and remove the specialized get_user_pages_longterm call. [1] https://lkml.org/lkml/2019/3/19/939 "longterm" is a relative thing and at this point is probably a misnomer. This is really flagging a pin which is going to be given to hardware and can't move. I've thought of a couple of alternative names but I think we have to settle on if we are going to use FL_LAYOUT or something else to solve the "longterm" problem. Then I think we can change the flag to a better name. Secondly, it depends on how often you are registering memory. I have spoken with some RDMA users who consider MR in the performance path... For the overall application performance. I don't have the numbers as the tests for HFI1 were done a long time ago. But there was a significant advantage. Some of which is probably due to the fact that you don't have to hold mmap_sem. Finally, architecturally I think it would be good for everyone to use *_fast. There are patches submitted to the RDMA list which would allow the use of *_fast (they reworking the use of mmap_sem) and as soon as they are accepted I'll submit a patch to convert the RDMA core as well. Also to this point others are looking to use *_fast. As an aside, Jasons pointed out in my previous submission that *_fast and *_unlocked look very much the same. I agree and I think further cleanup will be coming. But I'm focused on getting the final solution for DAX at the moment. This patch (of 7): This patch starts a series which aims to support FOLL_LONGTERM in get_user_pages_fast(). Some callers who would like to do a longterm (user controlled pin) of pages with the fast variant of GUP for performance purposes. Rather than have a separate get_user_pages_longterm() call, introduce FOLL_LONGTERM and change the longterm callers to use it. This patch does not change any functionality. In the short term "longterm" or user controlled pins are unsafe for Filesystems and FS DAX in particular has been blocked. However, callers of get_user_pages_fast() were not "protected". FOLL_LONGTERM can _only_ be supported with get_user_pages[_fast]() as it requires vmas to determine if DAX is in use. NOTE: In merging with the CMA changes we opt to change the get_user_pages() call in check_and_migrate_cma_pages() to a call of __get_user_pages_locked() on the newly migrated pages. This makes the code read better in that we are calling __get_user_pages_locked() on the pages before and after a potential migration. As a side affect some of the interfaces are cleaned up but this is not the primary purpose of the series. In review[1] it was asked: > This I don't get - if you do lock down long term mappings performance > of the actual get_user_pages call shouldn't matter to start with. > > What do I miss? A couple of points. First "longterm" is a relative thing and at this point is probably a misnomer. This is really flagging a pin which is going to be given to hardware and can't move. I've thought of a couple of alternative names but I think we have to settle on if we are going to use FL_LAYOUT or something else to solve the "longterm" problem. Then I think we can change the flag to a better name. Second, It depends on how often you are registering memory. I have spoken with some RDMA users who consider MR in the performance path... For the overall application performance. I don't have the numbers as the tests for HFI1 were done a long time ago. But there was a significant advantage. Some of which is probably due to the fact that you don't have to hold mmap_sem. Finally, architecturally I think it would be good for everyone to use *_fast. There are patches submitted to the RDMA list which would allow the use of *_fast (they reworking the use of mmap_sem) and as soon as they are accepted I'll submit a patch to convert the RDMA core as well. Also to this point others are looking to use *_fast. As an asside, Jasons pointed out in my previous submission that *_fast and *_unlocked look very much the same. I agree and I think further cleanup will be coming. But I'm focused on getting the final solution for DAX at the moment. [1] https://lore.kernel.org/lkml/20190220180255.GA12020@iweiny-DESK2.sc.intel.com/T/#md6abad2569f3bf6c1f03686c8097ab6563e94965 [ira.weiny@intel.com: v3] Link: http://lkml.kernel.org/r/20190328084422.29911-2-ira.weiny@intel.com Link: http://lkml.kernel.org/r/20190328084422.29911-2-ira.weiny@intel.com Link: http://lkml.kernel.org/r/20190317183438.2057-2-ira.weiny@intel.com Signed-off-by: Ira Weiny Reviewed-by: Andrew Morton Cc: Aneesh Kumar K.V Cc: Michal Hocko Cc: John Hubbard Cc: "Kirill A. Shutemov" Cc: Peter Zijlstra Cc: Jason Gunthorpe Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: "David S. Miller" Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Rich Felker Cc: Yoshinori Sato Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Ralf Baechle Cc: James Hogan Cc: Dan Williams Cc: Mike Marshall Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 41 ++++++++++++++++++++++++++++------------- 1 file changed, 28 insertions(+), 13 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mm.h b/include/linux/mm.h index 083d7b4863ed..8bc677ce8f01 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1505,19 +1505,6 @@ long get_user_pages_locked(unsigned long start, unsigned long nr_pages, long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages, struct page **pages, unsigned int gup_flags); -#if defined(CONFIG_FS_DAX) || defined(CONFIG_CMA) -long get_user_pages_longterm(unsigned long start, unsigned long nr_pages, - unsigned int gup_flags, struct page **pages, - struct vm_area_struct **vmas); -#else -static inline long get_user_pages_longterm(unsigned long start, - unsigned long nr_pages, unsigned int gup_flags, - struct page **pages, struct vm_area_struct **vmas) -{ - return get_user_pages(start, nr_pages, gup_flags, pages, vmas); -} -#endif /* CONFIG_FS_DAX */ - int get_user_pages_fast(unsigned long start, int nr_pages, int write, struct page **pages); @@ -2583,6 +2570,34 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address, #define FOLL_REMOTE 0x2000 /* we are working on non-current tsk/mm */ #define FOLL_COW 0x4000 /* internal GUP flag */ #define FOLL_ANON 0x8000 /* don't do file mappings */ +#define FOLL_LONGTERM 0x10000 /* mapping lifetime is indefinite: see below */ + +/* + * NOTE on FOLL_LONGTERM: + * + * FOLL_LONGTERM indicates that the page will be held for an indefinite time + * period _often_ under userspace control. This is contrasted with + * iov_iter_get_pages() where usages which are transient. + * + * FIXME: For pages which are part of a filesystem, mappings are subject to the + * lifetime enforced by the filesystem and we need guarantees that longterm + * users like RDMA and V4L2 only establish mappings which coordinate usage with + * the filesystem. Ideas for this coordination include revoking the longterm + * pin, delaying writeback, bounce buffer page writeback, etc. As FS DAX was + * added after the problem with filesystems was found FS DAX VMAs are + * specifically failed. Filesystem pages are still subject to bugs and use of + * FOLL_LONGTERM should be avoided on those pages. + * + * FIXME: Also NOTE that FOLL_LONGTERM is not supported in every GUP call. + * Currently only get_user_pages() and get_user_pages_fast() support this flag + * and calls to get_user_pages_[un]locked are specifically not allowed. This + * is due to an incompatibility with the FS DAX check and + * FAULT_FLAG_ALLOW_RETRY + * + * In the CMA case: longterm pins in a CMA region would unnecessarily fragment + * that region. And so CMA attempts to migrate the page before pinning when + * FOLL_LONGTERM is specified. + */ static inline int vm_fault_to_errno(vm_fault_t vm_fault, int foll_flags) { -- cgit v1.2.3 From 73b0140bf0fe9df90fb267c00673c4b9bf285430 Mon Sep 17 00:00:00 2001 From: Ira Weiny Date: Mon, 13 May 2019 17:17:11 -0700 Subject: mm/gup: change GUP fast to use flags rather than a write 'bool' To facilitate additional options to get_user_pages_fast() change the singular write parameter to be gup_flags. This patch does not change any functionality. New functionality will follow in subsequent patches. Some of the get_user_pages_fast() call sites were unchanged because they already passed FOLL_WRITE or 0 for the write parameter. NOTE: It was suggested to change the ordering of the get_user_pages_fast() arguments to ensure that callers were converted. This breaks the current GUP call site convention of having the returned pages be the final parameter. So the suggestion was rejected. Link: http://lkml.kernel.org/r/20190328084422.29911-4-ira.weiny@intel.com Link: http://lkml.kernel.org/r/20190317183438.2057-4-ira.weiny@intel.com Signed-off-by: Ira Weiny Reviewed-by: Mike Marshall Cc: Aneesh Kumar K.V Cc: Benjamin Herrenschmidt Cc: Borislav Petkov Cc: Dan Williams Cc: "David S. Miller" Cc: Heiko Carstens Cc: Ingo Molnar Cc: James Hogan Cc: Jason Gunthorpe Cc: John Hubbard Cc: "Kirill A. Shutemov" Cc: Martin Schwidefsky Cc: Michal Hocko Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Ralf Baechle Cc: Rich Felker Cc: Thomas Gleixner Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mm.h b/include/linux/mm.h index 8bc677ce8f01..c3c73b3c9adc 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1505,8 +1505,8 @@ long get_user_pages_locked(unsigned long start, unsigned long nr_pages, long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages, struct page **pages, unsigned int gup_flags); -int get_user_pages_fast(unsigned long start, int nr_pages, int write, - struct page **pages); +int get_user_pages_fast(unsigned long start, int nr_pages, + unsigned int gup_flags, struct page **pages); /* Container for pinned pfns / pages */ struct frame_vector { -- cgit v1.2.3 From e0ee0e71078abbcadd4cbc38fb8570551fccc103 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Mon, 13 May 2019 17:17:57 -0700 Subject: mm: memcontrol: track LRU counts in the vmstats array Patch series "mm: memcontrol: clean up the LRU counts tracking". The memcg LRU stats usage is currently a bit messy. Memcg has private per-zone counters because reclaim needs zone granularity sometimes, but we also have plenty of users that need to awkwardly sum them up to node or memcg granularity. Meanwhile the canonical per-memcg vmstats do not track the LRU counts (NR_INACTIVE_ANON etc.) as you'd expect. This series enables LRU count tracking in the per-memcg vmstats array such that lruvec_page_state() and memcg_page_state() work on the enum node_stat_item items for the LRU counters. Then it converts all the callers that don't specifically need per-zone numbers over to that. This patch (of 6): The memcg code currently maintains private per-zone breakdowns of the LRU counters. This is necessary for reclaim decisions which are still zone-based, but there are a variety of users of these counters that only want the aggregate per-lruvec or per-memcg LRU counts, and they need to painfully sum up the zone counters on each request for that. These would be better served using the memcg vmstats arrays, which track VM statistics at the desired scope already. They just don't have the LRU counts right now. So to kick off the conversion, begin tracking LRU counts in those. Link: http://lkml.kernel.org/r/20190228163020.24100-2-hannes@cmpxchg.org Signed-off-by: Johannes Weiner Reviewed-by: Roman Gushchin Cc: Tejun Heo Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm_inline.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index 04ec454d44ce..6f2fef7b0784 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -29,7 +29,7 @@ static __always_inline void __update_lru_size(struct lruvec *lruvec, { struct pglist_data *pgdat = lruvec_pgdat(lruvec); - __mod_node_page_state(pgdat, NR_LRU_BASE + lru, nr_pages); + __mod_lruvec_state(lruvec, NR_LRU_BASE + lru, nr_pages); __mod_zone_page_state(&pgdat->node_zones[zid], NR_ZONE_LRU_BASE + lru, nr_pages); } -- cgit v1.2.3 From 1a61ab8038e724a6d8aa59e7d4931a119483294d Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Mon, 13 May 2019 17:18:00 -0700 Subject: mm: memcontrol: replace zone summing with lruvec_page_state() Instead of adding up the zone counters, use lruvec_page_state() to get the node state directly. This is a bit cheaper and more stream-lined. Link: http://lkml.kernel.org/r/20190228163020.24100-3-hannes@cmpxchg.org Signed-off-by: Johannes Weiner Reviewed-by: Roman Gushchin Cc: Michal Hocko Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 18 ------------------ 1 file changed, 18 deletions(-) (limited to 'include/linux') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index b238403f95b2..65f381b27a2d 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -504,19 +504,6 @@ void mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru, unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg, int nid, unsigned int lru_mask); -static inline -unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru) -{ - struct mem_cgroup_per_node *mz; - unsigned long nr_pages = 0; - int zid; - - mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec); - for (zid = 0; zid < MAX_NR_ZONES; zid++) - nr_pages += mz->lru_zone_size[zid][lru]; - return nr_pages; -} - static inline unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec, enum lru_list lru, int zone_idx) @@ -960,11 +947,6 @@ static inline bool mem_cgroup_online(struct mem_cgroup *memcg) return true; } -static inline unsigned long -mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru) -{ - return 0; -} static inline unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec, enum lru_list lru, int zone_idx) -- cgit v1.2.3 From 2b487e59f00aaa885ebf9c47d44d09f3ef4df80e Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Mon, 13 May 2019 17:18:05 -0700 Subject: mm: memcontrol: push down mem_cgroup_node_nr_lru_pages() mem_cgroup_node_nr_lru_pages() is just a convenience wrapper around lruvec_page_state() that takes bitmasks of lru indexes and aggregates the counts for those. Replace callsites where the bitmask is simple enough with direct lruvec_page_state() calls. This removes the last extern user of mem_cgroup_node_nr_lru_pages(), so make that function private again, too. Link: http://lkml.kernel.org/r/20190228163020.24100-5-hannes@cmpxchg.org Signed-off-by: Johannes Weiner Reviewed-by: Roman Gushchin Cc: Michal Hocko Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 65f381b27a2d..30561a954ee0 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -501,9 +501,6 @@ int mem_cgroup_select_victim_node(struct mem_cgroup *memcg); void mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru, int zid, int nr_pages); -unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg, - int nid, unsigned int lru_mask); - static inline unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec, enum lru_list lru, int zone_idx) @@ -954,13 +951,6 @@ unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec, return 0; } -static inline unsigned long -mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg, - int nid, unsigned int lru_mask) -{ - return 0; -} - static inline unsigned long mem_cgroup_get_max(struct mem_cgroup *memcg) { return 0; -- cgit v1.2.3 From 113b7dfd827175977ea71cc4a29c1ac24acb9fce Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Mon, 13 May 2019 17:18:11 -0700 Subject: mm: memcontrol: quarantine the mem_cgroup_[node_]nr_lru_pages() API Only memcg_numa_stat_show() uses those wrappers and the lru bitmasks, group them together. Link: http://lkml.kernel.org/r/20190228163020.24100-7-hannes@cmpxchg.org Signed-off-by: Johannes Weiner Reviewed-by: Roman Gushchin Cc: Michal Hocko Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmzone.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index fba7741533be..5a4aedc160bd 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -247,11 +247,6 @@ struct lruvec { #endif }; -/* Mask used at gathering information at once (see memcontrol.c) */ -#define LRU_ALL_FILE (BIT(LRU_INACTIVE_FILE) | BIT(LRU_ACTIVE_FILE)) -#define LRU_ALL_ANON (BIT(LRU_INACTIVE_ANON) | BIT(LRU_ACTIVE_ANON)) -#define LRU_ALL ((1 << NR_LRU_LISTS) - 1) - /* Isolate unmapped file */ #define ISOLATE_UNMAPPED ((__force isolate_mode_t)0x2) /* Isolate for asynchronous migration */ -- cgit v1.2.3 From 8df995f6bde01de96ce93373785f41c3bd13ad1c Mon Sep 17 00:00:00 2001 From: Alexandre Ghiti Date: Mon, 13 May 2019 17:19:00 -0700 Subject: mm: simplify MEMORY_ISOLATION && COMPACTION || CMA into CONTIG_ALLOC This condition allows to define alloc_contig_range, so simplify it into a more accurate naming. Link: http://lkml.kernel.org/r/20190327063626.18421-4-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Suggested-by: Vlastimil Babka Acked-by: Vlastimil Babka Cc: Andy Lutomirsky Cc: Aneesh Kumar K.V Cc: Benjamin Herrenschmidt Cc: Borislav Petkov Cc: Catalin Marinas Cc: Dave Hansen Cc: David S. Miller Cc: Heiko Carstens Cc: "H . Peter Anvin" Cc: Ingo Molnar Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Mike Kravetz Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Rich Felker Cc: Thomas Gleixner Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/gfp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/gfp.h b/include/linux/gfp.h index fdab7de7490d..e77ab30e9328 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -585,7 +585,7 @@ static inline bool pm_suspended_storage(void) } #endif /* CONFIG_PM_SLEEP */ -#if (defined(CONFIG_MEMORY_ISOLATION) && defined(CONFIG_COMPACTION)) || defined(CONFIG_CMA) +#ifdef CONFIG_CONTIG_ALLOC /* The below functions must be run on a range from a single zone. */ extern int alloc_contig_range(unsigned long start, unsigned long end, unsigned migratetype, gfp_t gfp_mask); -- cgit v1.2.3 From 4eb0716e868eed963967adb0b1b11d9bd8ca1d01 Mon Sep 17 00:00:00 2001 From: Alexandre Ghiti Date: Mon, 13 May 2019 17:19:04 -0700 Subject: hugetlb: allow to free gigantic pages regardless of the configuration On systems without CONTIG_ALLOC activated but that support gigantic pages, boottime reserved gigantic pages can not be freed at all. This patch simply enables the possibility to hand back those pages to memory allocator. Link: http://lkml.kernel.org/r/20190327063626.18421-5-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Acked-by: David S. Miller [sparc] Reviewed-by: Mike Kravetz Cc: Andy Lutomirsky Cc: Aneesh Kumar K.V Cc: Benjamin Herrenschmidt Cc: Borislav Petkov Cc: Catalin Marinas Cc: Dave Hansen Cc: Heiko Carstens Cc: "H . Peter Anvin" Cc: Ingo Molnar Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Rich Felker Cc: Thomas Gleixner Cc: Vlastimil Babka Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/gfp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/gfp.h b/include/linux/gfp.h index e77ab30e9328..fb07b503dc45 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -589,8 +589,8 @@ static inline bool pm_suspended_storage(void) /* The below functions must be run on a range from a single zone. */ extern int alloc_contig_range(unsigned long start, unsigned long end, unsigned migratetype, gfp_t gfp_mask); -extern void free_contig_range(unsigned long pfn, unsigned nr_pages); #endif +void free_contig_range(unsigned long pfn, unsigned int nr_pages); #ifdef CONFIG_CMA /* CMA stuff */ -- cgit v1.2.3 From fc1d8e7cca2daa18d2fe56b94874848adf89d7f5 Mon Sep 17 00:00:00 2001 From: John Hubbard Date: Mon, 13 May 2019 17:19:08 -0700 Subject: mm: introduce put_user_page*(), placeholder versions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A discussion of the overall problem is below. As mentioned in patch 0001, the steps are to fix the problem are: 1) Provide put_user_page*() routines, intended to be used for releasing pages that were pinned via get_user_pages*(). 2) Convert all of the call sites for get_user_pages*(), to invoke put_user_page*(), instead of put_page(). This involves dozens of call sites, and will take some time. 3) After (2) is complete, use get_user_pages*() and put_user_page*() to implement tracking of these pages. This tracking will be separate from the existing struct page refcounting. 4) Use the tracking and identification of these pages, to implement special handling (especially in writeback paths) when the pages are backed by a filesystem. Overview ======== Some kernel components (file systems, device drivers) need to access memory that is specified via process virtual address. For a long time, the API to achieve that was get_user_pages ("GUP") and its variations. However, GUP has critical limitations that have been overlooked; in particular, GUP does not interact correctly with filesystems in all situations. That means that file-backed memory + GUP is a recipe for potential problems, some of which have already occurred in the field. GUP was first introduced for Direct IO (O_DIRECT), allowing filesystem code to get the struct page behind a virtual address and to let storage hardware perform a direct copy to or from that page. This is a short-lived access pattern, and as such, the window for a concurrent writeback of GUP'd page was small enough that there were not (we think) any reported problems. Also, userspace was expected to understand and accept that Direct IO was not synchronized with memory-mapped access to that data, nor with any process address space changes such as munmap(), mremap(), etc. Over the years, more GUP uses have appeared (virtualization, device drivers, RDMA) that can keep the pages they get via GUP for a long period of time (seconds, minutes, hours, days, ...). This long-term pinning makes an underlying design problem more obvious. In fact, there are a number of key problems inherent to GUP: Interactions with file systems ============================== File systems expect to be able to write back data, both to reclaim pages, and for data integrity. Allowing other hardware (NICs, GPUs, etc) to gain write access to the file memory pages means that such hardware can dirty the pages, without the filesystem being aware. This can, in some cases (depending on filesystem, filesystem options, block device, block device options, and other variables), lead to data corruption, and also to kernel bugs of the form: kernel BUG at /build/linux-fQ94TU/linux-4.4.0/fs/ext4/inode.c:1899! backtrace: ext4_writepage __writepage write_cache_pages ext4_writepages do_writepages __writeback_single_inode writeback_sb_inodes __writeback_inodes_wb wb_writeback wb_workfn process_one_work worker_thread kthread ret_from_fork ...which is due to the file system asserting that there are still buffer heads attached: ({ \ BUG_ON(!PagePrivate(page)); \ ((struct buffer_head *)page_private(page)); \ }) Dave Chinner's description of this is very clear: "The fundamental issue is that ->page_mkwrite must be called on every write access to a clean file backed page, not just the first one. How long the GUP reference lasts is irrelevant, if the page is clean and you need to dirty it, you must call ->page_mkwrite before it is marked writeable and dirtied. Every. Time." This is just one symptom of the larger design problem: real filesystems that actually write to a backing device, do not actually support get_user_pages() being called on their pages, and letting hardware write directly to those pages--even though that pattern has been going on since about 2005 or so. Long term GUP ============= Long term GUP is an issue when FOLL_WRITE is specified to GUP (so, a writeable mapping is created), and the pages are file-backed. That can lead to filesystem corruption. What happens is that when a file-backed page is being written back, it is first mapped read-only in all of the CPU page tables; the file system then assumes that nobody can write to the page, and that the page content is therefore stable. Unfortunately, the GUP callers generally do not monitor changes to the CPU pages tables; they instead assume that the following pattern is safe (it's not): get_user_pages() Hardware can keep a reference to those pages for a very long time, and write to it at any time. Because "hardware" here means "devices that are not a CPU", this activity occurs without any interaction with the kernel's file system code. for each page set_page_dirty put_page() In fact, the GUP documentation even recommends that pattern. Anyway, the file system assumes that the page is stable (nothing is writing to the page), and that is a problem: stable page content is necessary for many filesystem actions during writeback, such as checksum, encryption, RAID striping, etc. Furthermore, filesystem features like COW (copy on write) or snapshot also rely on being able to use a new page for as memory for that memory range inside the file. Corruption during write back is clearly possible here. To solve that, one idea is to identify pages that have active GUP, so that we can use a bounce page to write stable data to the filesystem. The filesystem would work on the bounce page, while any of the active GUP might write to the original page. This would avoid the stable page violation problem, but note that it is only part of the overall solution, because other problems remain. Other filesystem features that need to replace the page with a new one can be inhibited for pages that are GUP-pinned. This will, however, alter and limit some of those filesystem features. The only fix for that would be to require GUP users to monitor and respond to CPU page table updates. Subsystems such as ODP and HMM do this, for example. This aspect of the problem is still under discussion. Direct IO ========= Direct IO can cause corruption, if userspace does Direct-IO that writes to a range of virtual addresses that are mmap'd to a file. The pages written to are file-backed pages that can be under write back, while the Direct IO is taking place. Here, Direct IO races with a write back: it calls GUP before page_mkclean() has replaced the CPU pte with a read-only entry. The race window is pretty small, which is probably why years have gone by before we noticed this problem: Direct IO is generally very quick, and tends to finish up before the filesystem gets around to do anything with the page contents. However, it's still a real problem. The solution is to never let GUP return pages that are under write back, but instead, force GUP to take a write fault on those pages. That way, GUP will properly synchronize with the active write back. This does not change the required GUP behavior, it just avoids that race. Details ======= Introduces put_user_page(), which simply calls put_page(). This provides a way to update all get_user_pages*() callers, so that they call put_user_page(), instead of put_page(). Also introduces put_user_pages(), and a few dirty/locked variations, as a replacement for release_pages(), and also as a replacement for open-coded loops that release multiple pages. These may be used for subsequent performance improvements, via batching of pages to be released. This is the first step of fixing a problem (also described in [1] and [2]) with interactions between get_user_pages ("gup") and filesystems. Problem description: let's start with a bug report. Below, is what happens sometimes, under memory pressure, when a driver pins some pages via gup, and then marks those pages dirty, and releases them. Note that the gup documentation actually recommends that pattern. The problem is that the filesystem may do a writeback while the pages were gup-pinned, and then the filesystem believes that the pages are clean. So, when the driver later marks the pages as dirty, that conflicts with the filesystem's page tracking and results in a BUG(), like this one that I experienced: kernel BUG at /build/linux-fQ94TU/linux-4.4.0/fs/ext4/inode.c:1899! backtrace: ext4_writepage __writepage write_cache_pages ext4_writepages do_writepages __writeback_single_inode writeback_sb_inodes __writeback_inodes_wb wb_writeback wb_workfn process_one_work worker_thread kthread ret_from_fork ...which is due to the file system asserting that there are still buffer heads attached: ({ \ BUG_ON(!PagePrivate(page)); \ ((struct buffer_head *)page_private(page)); \ }) Dave Chinner's description of this is very clear: "The fundamental issue is that ->page_mkwrite must be called on every write access to a clean file backed page, not just the first one. How long the GUP reference lasts is irrelevant, if the page is clean and you need to dirty it, you must call ->page_mkwrite before it is marked writeable and dirtied. Every. Time." This is just one symptom of the larger design problem: real filesystems that actually write to a backing device, do not actually support get_user_pages() being called on their pages, and letting hardware write directly to those pages--even though that pattern has been going on since about 2005 or so. The steps are to fix it are: 1) (This patch): provide put_user_page*() routines, intended to be used for releasing pages that were pinned via get_user_pages*(). 2) Convert all of the call sites for get_user_pages*(), to invoke put_user_page*(), instead of put_page(). This involves dozens of call sites, and will take some time. 3) After (2) is complete, use get_user_pages*() and put_user_page*() to implement tracking of these pages. This tracking will be separate from the existing struct page refcounting. 4) Use the tracking and identification of these pages, to implement special handling (especially in writeback paths) when the pages are backed by a filesystem. [1] https://lwn.net/Articles/774411/ : "DMA and get_user_pages()" [2] https://lwn.net/Articles/753027/ : "The Trouble with get_user_pages()" Link: http://lkml.kernel.org/r/20190327023632.13307-2-jhubbard@nvidia.com Signed-off-by: John Hubbard Reviewed-by: Jan Kara Reviewed-by: Mike Rapoport [docs] Reviewed-by: Ira Weiny Reviewed-by: Jérôme Glisse Reviewed-by: Christoph Lameter Tested-by: Ira Weiny Cc: Al Viro Cc: Christoph Hellwig Cc: Dan Williams Cc: Dave Chinner Cc: Jason Gunthorpe Cc: Matthew Wilcox Cc: Michal Hocko Cc: Ralph Campbell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mm.h b/include/linux/mm.h index c3c73b3c9adc..e6b6be15609e 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1007,6 +1007,30 @@ static inline void put_page(struct page *page) __put_page(page); } +/** + * put_user_page() - release a gup-pinned page + * @page: pointer to page to be released + * + * Pages that were pinned via get_user_pages*() must be released via + * either put_user_page(), or one of the put_user_pages*() routines + * below. This is so that eventually, pages that are pinned via + * get_user_pages*() can be separately tracked and uniquely handled. In + * particular, interactions with RDMA and filesystems need special + * handling. + * + * put_user_page() and put_page() are not interchangeable, despite this early + * implementation that makes them look the same. put_user_page() calls must + * be perfectly matched up with get_user_page() calls. + */ +static inline void put_user_page(struct page *page) +{ + put_page(page); +} + +void put_user_pages_dirty(struct page **pages, unsigned long npages); +void put_user_pages_dirty_lock(struct page **pages, unsigned long npages); +void put_user_pages(struct page **pages, unsigned long npages); + #if defined(CONFIG_SPARSEMEM) && !defined(CONFIG_SPARSEMEM_VMEMMAP) #define SECTION_IN_PAGE_FLAGS #endif -- cgit v1.2.3 From 926e5d1cb525ec4faa66ddb24ac3b61c0102cb5c Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Mon, 13 May 2019 17:19:29 -0700 Subject: include/linux/balloon_compaction.h: drop unused function stubs These are leftovers from the pre-"general non-lru movable page" era. Link: http://lkml.kernel.org/r/20190329122649.28404-1-david@redhat.com Signed-off-by: David Hildenbrand Reviewed-by: Mukesh Ojha Acked-by: Michael S. Tsirkin Acked-by: Pankaj Gupta Acked-by: Rafael Aquini Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/balloon_compaction.h | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'include/linux') diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h index f111c780ef1d..f31521dcb09a 100644 --- a/include/linux/balloon_compaction.h +++ b/include/linux/balloon_compaction.h @@ -151,21 +151,6 @@ static inline void balloon_page_delete(struct page *page) list_del(&page->lru); } -static inline bool __is_movable_balloon_page(struct page *page) -{ - return false; -} - -static inline bool balloon_page_movable(struct page *page) -{ - return false; -} - -static inline bool isolated_balloon_page(struct page *page) -{ - return false; -} - static inline bool balloon_page_isolate(struct page *page) { return false; -- cgit v1.2.3 From 1b426bac66e6cc83c9f2d92b96e4e72acf43419a Mon Sep 17 00:00:00 2001 From: Mike Kravetz Date: Mon, 13 May 2019 17:19:41 -0700 Subject: hugetlb: use same fault hash key for shared and private mappings hugetlb uses a fault mutex hash table to prevent page faults of the same pages concurrently. The key for shared and private mappings is different. Shared keys off address_space and file index. Private keys off mm and virtual address. Consider a private mappings of a populated hugetlbfs file. A fault will map the page from the file and if needed do a COW to map a writable page. Hugetlbfs hole punch uses the fault mutex to prevent mappings of file pages. It uses the address_space file index key. However, private mappings will use a different key and could race with this code to map the file page. This causes problems (BUG) for the page cache remove code as it expects the page to be unmapped. A sample stack is: page dumped because: VM_BUG_ON_PAGE(page_mapped(page)) kernel BUG at mm/filemap.c:169! ... RIP: 0010:unaccount_page_cache_page+0x1b8/0x200 ... Call Trace: __delete_from_page_cache+0x39/0x220 delete_from_page_cache+0x45/0x70 remove_inode_hugepages+0x13c/0x380 ? __add_to_page_cache_locked+0x162/0x380 hugetlbfs_fallocate+0x403/0x540 ? _cond_resched+0x15/0x30 ? __inode_security_revalidate+0x5d/0x70 ? selinux_file_permission+0x100/0x130 vfs_fallocate+0x13f/0x270 ksys_fallocate+0x3c/0x80 __x64_sys_fallocate+0x1a/0x20 do_syscall_64+0x5b/0x180 entry_SYSCALL_64_after_hwframe+0x44/0xa9 There seems to be another potential COW issue/race with this approach of different private and shared keys as noted in commit 8382d914ebf7 ("mm, hugetlb: improve page-fault scalability"). Since every hugetlb mapping (even anon and private) is actually a file mapping, just use the address_space index key for all mappings. This results in potentially more hash collisions. However, this should not be the common case. Link: http://lkml.kernel.org/r/20190328234704.27083-3-mike.kravetz@oracle.com Link: http://lkml.kernel.org/r/20190412165235.t4sscoujczfhuiyt@linux-r8p5 Fixes: b5cec28d36f5 ("hugetlbfs: truncate_hugepages() takes a range of pages") Signed-off-by: Mike Kravetz Reviewed-by: Naoya Horiguchi Reviewed-by: Davidlohr Bueso Cc: Joonsoo Kim Cc: "Kirill A . Shutemov" Cc: Michal Hocko Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hugetlb.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 11943b60f208..edf476c8cfb9 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -123,9 +123,7 @@ void move_hugetlb_state(struct page *oldpage, struct page *newpage, int reason); void free_huge_page(struct page *page); void hugetlb_fix_reserve_counts(struct inode *inode); extern struct mutex *hugetlb_fault_mutex_table; -u32 hugetlb_fault_mutex_hash(struct hstate *h, struct mm_struct *mm, - struct vm_area_struct *vma, - struct address_space *mapping, +u32 hugetlb_fault_mutex_hash(struct hstate *h, struct address_space *mapping, pgoff_t idx, unsigned long address); pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud); -- cgit v1.2.3 From 704f3f2cf63cdb76925ac2ff432182c73574b20b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:19:48 -0700 Subject: mm/hmm: use reference counting for HMM struct MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Every time I read the code to check that the HMM structure does not vanish before it should thanks to the many lock protecting its removal i get a headache. Switch to reference counting instead it is much easier to follow and harder to break. This also remove some code that is no longer needed with refcounting. Link: http://lkml.kernel.org/r/20190403193318.16478-3-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reviewed-by: Ralph Campbell Cc: John Hubbard Cc: Dan Williams Cc: Arnd Bergmann Cc: Balbir Singh Cc: Dan Carpenter Cc: Ira Weiny Cc: Matthew Wilcox Cc: Souptick Joarder Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hmm.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/hmm.h b/include/linux/hmm.h index ad50b7b4f141..716fc61fa6d4 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -131,6 +131,7 @@ enum hmm_pfn_value_e { /* * struct hmm_range - track invalidation lock on virtual address range * + * @hmm: the core HMM structure this range is active against * @vma: the vm area struct for the range * @list: all range lock are on a list * @start: range virtual start address (inclusive) @@ -142,6 +143,7 @@ enum hmm_pfn_value_e { * @valid: pfns array did not change since it has been fill by an HMM function */ struct hmm_range { + struct hmm *hmm; struct vm_area_struct *vma; struct list_head list; unsigned long start; -- cgit v1.2.3 From 25f23a0c7127b65c4d8200ccda8a352ad5ce1e1d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:19:55 -0700 Subject: mm/hmm: improve and rename hmm_vma_get_pfns() to hmm_range_snapshot() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rename for consistency between code, comments and documentation. Also improves the comments on all the possible returns values. Improve the function by returning the number of populated entries in pfns array. Link: http://lkml.kernel.org/r/20190403193318.16478-5-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reviewed-by: Ralph Campbell Reviewed-by: John Hubbard Reviewed-by: Ira Weiny Cc: Dan Williams Cc: Arnd Bergmann Cc: Balbir Singh Cc: Dan Carpenter Cc: Matthew Wilcox Cc: Souptick Joarder Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hmm.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/hmm.h b/include/linux/hmm.h index 716fc61fa6d4..32206b0b1bfd 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -365,11 +365,11 @@ void hmm_mirror_unregister(struct hmm_mirror *mirror); * table invalidation serializes on it. * * YOU MUST CALL hmm_vma_range_done() ONCE AND ONLY ONCE EACH TIME YOU CALL - * hmm_vma_get_pfns() WITHOUT ERROR ! + * hmm_range_snapshot() WITHOUT ERROR ! * * IF YOU DO NOT FOLLOW THE ABOVE RULE THE SNAPSHOT CONTENT MIGHT BE INVALID ! */ -int hmm_vma_get_pfns(struct hmm_range *range); +long hmm_range_snapshot(struct hmm_range *range); bool hmm_vma_range_done(struct hmm_range *range); -- cgit v1.2.3 From 73231612dc7c907bd96880a4086ee55eef6b6888 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:19:58 -0700 Subject: mm/hmm: improve and rename hmm_vma_fault() to hmm_range_fault() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Minor optimization around hmm_pte_need_fault(). Rename for consistency between code, comments and documentation. Also improves the comments on all the possible returns values. Improve the function by returning the number of populated entries in pfns array. Link: http://lkml.kernel.org/r/20190403193318.16478-6-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reviewed-by: Ralph Campbell Cc: John Hubbard Cc: Dan Williams Cc: Arnd Bergmann Cc: Balbir Singh Cc: Dan Carpenter Cc: Ira Weiny Cc: Matthew Wilcox Cc: Souptick Joarder Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hmm.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/hmm.h b/include/linux/hmm.h index 32206b0b1bfd..e9afd23c2eac 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -391,7 +391,18 @@ bool hmm_vma_range_done(struct hmm_range *range); * * See the function description in mm/hmm.c for further documentation. */ -int hmm_vma_fault(struct hmm_range *range, bool block); +long hmm_range_fault(struct hmm_range *range, bool block); + +/* This is a temporary helper to avoid merge conflict between trees. */ +static inline int hmm_vma_fault(struct hmm_range *range, bool block) +{ + long ret = hmm_range_fault(range, block); + if (ret == -EBUSY) + ret = -EAGAIN; + else if (ret == -EAGAIN) + ret = -EBUSY; + return ret < 0 ? ret : 0; +} /* Below are for HMM internal use only! Not to be used by device driver! */ void hmm_mm_destroy(struct mm_struct *mm); -- cgit v1.2.3 From a3e0d41c2b1f86b483b202d642140d8b86d677ca Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:20:01 -0700 Subject: mm/hmm: improve driver API to work and wait over a range MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A common use case for HMM mirror is user trying to mirror a range and before they could program the hardware it get invalidated by some core mm event. Instead of having user re-try right away to mirror the range provide a completion mechanism for them to wait for any active invalidation affecting the range. This also changes how hmm_range_snapshot() and hmm_range_fault() works by not relying on vma so that we can drop the mmap_sem when waiting and lookup the vma again on retry. Link: http://lkml.kernel.org/r/20190403193318.16478-7-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reviewed-by: Ralph Campbell Cc: John Hubbard Cc: Dan Williams Cc: Dan Carpenter Cc: Matthew Wilcox Cc: Arnd Bergmann Cc: Balbir Singh Cc: Ira Weiny Cc: Souptick Joarder Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hmm.h | 145 +++++++++++++++++++++++++++++++++++++++------------- 1 file changed, 109 insertions(+), 36 deletions(-) (limited to 'include/linux') diff --git a/include/linux/hmm.h b/include/linux/hmm.h index e9afd23c2eac..ec4bfa91648f 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -77,8 +77,34 @@ #include #include #include +#include -struct hmm; + +/* + * struct hmm - HMM per mm struct + * + * @mm: mm struct this HMM struct is bound to + * @lock: lock protecting ranges list + * @ranges: list of range being snapshotted + * @mirrors: list of mirrors for this mm + * @mmu_notifier: mmu notifier to track updates to CPU page table + * @mirrors_sem: read/write semaphore protecting the mirrors list + * @wq: wait queue for user waiting on a range invalidation + * @notifiers: count of active mmu notifiers + * @dead: is the mm dead ? + */ +struct hmm { + struct mm_struct *mm; + struct kref kref; + struct mutex lock; + struct list_head ranges; + struct list_head mirrors; + struct mmu_notifier mmu_notifier; + struct rw_semaphore mirrors_sem; + wait_queue_head_t wq; + long notifiers; + bool dead; +}; /* * hmm_pfn_flag_e - HMM flag enums @@ -155,6 +181,38 @@ struct hmm_range { bool valid; }; +/* + * hmm_range_wait_until_valid() - wait for range to be valid + * @range: range affected by invalidation to wait on + * @timeout: time out for wait in ms (ie abort wait after that period of time) + * Returns: true if the range is valid, false otherwise. + */ +static inline bool hmm_range_wait_until_valid(struct hmm_range *range, + unsigned long timeout) +{ + /* Check if mm is dead ? */ + if (range->hmm == NULL || range->hmm->dead || range->hmm->mm == NULL) { + range->valid = false; + return false; + } + if (range->valid) + return true; + wait_event_timeout(range->hmm->wq, range->valid || range->hmm->dead, + msecs_to_jiffies(timeout)); + /* Return current valid status just in case we get lucky */ + return range->valid; +} + +/* + * hmm_range_valid() - test if a range is valid or not + * @range: range + * Returns: true if the range is valid, false otherwise. + */ +static inline bool hmm_range_valid(struct hmm_range *range) +{ + return range->valid; +} + /* * hmm_pfn_to_page() - return struct page pointed to by a valid HMM pfn * @range: range use to decode HMM pfn value @@ -357,51 +415,66 @@ void hmm_mirror_unregister(struct hmm_mirror *mirror); /* - * To snapshot the CPU page table, call hmm_vma_get_pfns(), then take a device - * driver lock that serializes device page table updates, then call - * hmm_vma_range_done(), to check if the snapshot is still valid. The same - * device driver page table update lock must also be used in the - * hmm_mirror_ops.sync_cpu_device_pagetables() callback, so that CPU page - * table invalidation serializes on it. - * - * YOU MUST CALL hmm_vma_range_done() ONCE AND ONLY ONCE EACH TIME YOU CALL - * hmm_range_snapshot() WITHOUT ERROR ! - * - * IF YOU DO NOT FOLLOW THE ABOVE RULE THE SNAPSHOT CONTENT MIGHT BE INVALID ! + * Please see Documentation/vm/hmm.rst for how to use the range API. */ +int hmm_range_register(struct hmm_range *range, + struct mm_struct *mm, + unsigned long start, + unsigned long end); +void hmm_range_unregister(struct hmm_range *range); long hmm_range_snapshot(struct hmm_range *range); -bool hmm_vma_range_done(struct hmm_range *range); - +long hmm_range_fault(struct hmm_range *range, bool block); /* - * Fault memory on behalf of device driver. Unlike handle_mm_fault(), this will - * not migrate any device memory back to system memory. The HMM pfn array will - * be updated with the fault result and current snapshot of the CPU page table - * for the range. - * - * The mmap_sem must be taken in read mode before entering and it might be - * dropped by the function if the block argument is false. In that case, the - * function returns -EAGAIN. - * - * Return value does not reflect if the fault was successful for every single - * address or not. Therefore, the caller must to inspect the HMM pfn array to - * determine fault status for each address. - * - * Trying to fault inside an invalid vma will result in -EINVAL. + * HMM_RANGE_DEFAULT_TIMEOUT - default timeout (ms) when waiting for a range * - * See the function description in mm/hmm.c for further documentation. + * When waiting for mmu notifiers we need some kind of time out otherwise we + * could potentialy wait for ever, 1000ms ie 1s sounds like a long time to + * wait already. */ -long hmm_range_fault(struct hmm_range *range, bool block); +#define HMM_RANGE_DEFAULT_TIMEOUT 1000 + +/* This is a temporary helper to avoid merge conflict between trees. */ +static inline bool hmm_vma_range_done(struct hmm_range *range) +{ + bool ret = hmm_range_valid(range); + + hmm_range_unregister(range); + return ret; +} /* This is a temporary helper to avoid merge conflict between trees. */ static inline int hmm_vma_fault(struct hmm_range *range, bool block) { - long ret = hmm_range_fault(range, block); - if (ret == -EBUSY) - ret = -EAGAIN; - else if (ret == -EAGAIN) - ret = -EBUSY; - return ret < 0 ? ret : 0; + long ret; + + ret = hmm_range_register(range, range->vma->vm_mm, + range->start, range->end); + if (ret) + return (int)ret; + + if (!hmm_range_wait_until_valid(range, HMM_RANGE_DEFAULT_TIMEOUT)) { + /* + * The mmap_sem was taken by driver we release it here and + * returns -EAGAIN which correspond to mmap_sem have been + * drop in the old API. + */ + up_read(&range->vma->vm_mm->mmap_sem); + return -EAGAIN; + } + + ret = hmm_range_fault(range, block); + if (ret <= 0) { + if (ret == -EBUSY || !ret) { + /* Same as above drop mmap_sem to match old API. */ + up_read(&range->vma->vm_mm->mmap_sem); + ret = -EBUSY; + } else if (ret == -EAGAIN) + ret = -EBUSY; + hmm_range_unregister(range); + return ret; + } + return 0; } /* Below are for HMM internal use only! Not to be used by device driver! */ -- cgit v1.2.3 From 023a019a9b4e90b9df8ed5be591787b5c914d74f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:20:05 -0700 Subject: mm/hmm: add default fault flags to avoid the need to pre-fill pfns arrays MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The HMM mirror API can be use in two fashions. The first one where the HMM user coalesce multiple page faults into one request and set flags per pfns for of those faults. The second one where the HMM user want to pre-fault a range with specific flags. For the latter one it is a waste to have the user pre-fill the pfn arrays with a default flags value. This patch adds a default flags value allowing user to set them for a range without having to pre-fill the pfn array. Link: http://lkml.kernel.org/r/20190403193318.16478-8-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reviewed-by: Ralph Campbell Cc: John Hubbard Cc: Dan Williams Cc: Arnd Bergmann Cc: Balbir Singh Cc: Dan Carpenter Cc: Ira Weiny Cc: Matthew Wilcox Cc: Souptick Joarder Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hmm.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux') diff --git a/include/linux/hmm.h b/include/linux/hmm.h index ec4bfa91648f..dee2f8953b2e 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -165,6 +165,8 @@ enum hmm_pfn_value_e { * @pfns: array of pfns (big enough for the range) * @flags: pfn flags to match device driver page table * @values: pfn value for some special case (none, special, error, ...) + * @default_flags: default flags for the range (write, read, ... see hmm doc) + * @pfn_flags_mask: allows to mask pfn flags so that only default_flags matter * @pfn_shifts: pfn shift value (should be <= PAGE_SHIFT) * @valid: pfns array did not change since it has been fill by an HMM function */ @@ -177,6 +179,8 @@ struct hmm_range { uint64_t *pfns; const uint64_t *flags; const uint64_t *values; + uint64_t default_flags; + uint64_t pfn_flags_mask; uint8_t pfn_shift; bool valid; }; @@ -448,6 +452,15 @@ static inline int hmm_vma_fault(struct hmm_range *range, bool block) { long ret; + /* + * With the old API the driver must set each individual entries with + * the requested flags (valid, write, ...). So here we set the mask to + * keep intact the entries provided by the driver and zero out the + * default_flags. + */ + range->default_flags = 0; + range->pfn_flags_mask = -1UL; + ret = hmm_range_register(range, range->vma->vm_mm, range->start, range->end); if (ret) -- cgit v1.2.3 From 63d5066f6e5a1713d0247ef38f0add545408896b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:20:18 -0700 Subject: mm/hmm: mirror hugetlbfs (snapshoting, faulting and DMA mapping) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit HMM mirror is a device driver helpers to mirror range of virtual address. It means that the process jobs running on the device can access the same virtual address as the CPU threads of that process. This patch adds support for hugetlbfs mapping (ie range of virtual address that are mmap of a hugetlbfs). [rcampbell@nvidia.com: fix initial PFN for hugetlbfs pages] Link: http://lkml.kernel.org/r/20190419233536.8080-1-rcampbell@nvidia.com Link: http://lkml.kernel.org/r/20190403193318.16478-9-jglisse@redhat.com Signed-off-by: Jérôme Glisse Signed-off-by: Ralph Campbell Reviewed-by: Ralph Campbell Reviewed-by: Ira Weiny Cc: John Hubbard Cc: Dan Williams Cc: Arnd Bergmann Cc: Balbir Singh Cc: Dan Carpenter Cc: Matthew Wilcox Cc: Souptick Joarder Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hmm.h | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/hmm.h b/include/linux/hmm.h index dee2f8953b2e..e5834082de60 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -181,10 +181,31 @@ struct hmm_range { const uint64_t *values; uint64_t default_flags; uint64_t pfn_flags_mask; + uint8_t page_shift; uint8_t pfn_shift; bool valid; }; +/* + * hmm_range_page_shift() - return the page shift for the range + * @range: range being queried + * Returns: page shift (page size = 1 << page shift) for the range + */ +static inline unsigned hmm_range_page_shift(const struct hmm_range *range) +{ + return range->page_shift; +} + +/* + * hmm_range_page_size() - return the page size for the range + * @range: range being queried + * Returns: page size for the range in bytes + */ +static inline unsigned long hmm_range_page_size(const struct hmm_range *range) +{ + return 1UL << hmm_range_page_shift(range); +} + /* * hmm_range_wait_until_valid() - wait for range to be valid * @range: range affected by invalidation to wait on @@ -424,7 +445,8 @@ void hmm_mirror_unregister(struct hmm_mirror *mirror); int hmm_range_register(struct hmm_range *range, struct mm_struct *mm, unsigned long start, - unsigned long end); + unsigned long end, + unsigned page_shift); void hmm_range_unregister(struct hmm_range *range); long hmm_range_snapshot(struct hmm_range *range); long hmm_range_fault(struct hmm_range *range, bool block); @@ -462,7 +484,8 @@ static inline int hmm_vma_fault(struct hmm_range *range, bool block) range->pfn_flags_mask = -1UL; ret = hmm_range_register(range, range->vma->vm_mm, - range->start, range->end); + range->start, range->end, + PAGE_SHIFT); if (ret) return (int)ret; -- cgit v1.2.3 From 202394178d027f8a1530df65d4a25229138fab62 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:20:24 -0700 Subject: mm/hmm: add helpers to test if mm is still alive or not MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The device driver can have kernel thread or worker doing work against a process mm and it is useful for those to test wether the mm is dead or alive to avoid doing useless work. Add an helper to test that so that driver can bail out early if a process is dying. Note that the helper does not perform any lock synchronization and thus is just a hint ie a process might be dying but the helper might still return the process as alive. All HMM functions are safe to use in that case as HMM internal properly protect itself with lock. If driver use this helper with non HMM functions it should ascertain that it is safe to do so. Link: http://lkml.kernel.org/r/20190403193318.16478-11-jglisse@redhat.com Signed-off-by: Jérôme Glisse Cc: Ralph Campbell Cc: John Hubbard Cc: Dan Williams Cc: Ira Weiny Cc: Arnd Bergmann Cc: Balbir Singh Cc: Dan Carpenter Cc: Matthew Wilcox Cc: Souptick Joarder Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hmm.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'include/linux') diff --git a/include/linux/hmm.h b/include/linux/hmm.h index e5834082de60..a79fcc6681f5 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -438,6 +438,30 @@ struct hmm_mirror { int hmm_mirror_register(struct hmm_mirror *mirror, struct mm_struct *mm); void hmm_mirror_unregister(struct hmm_mirror *mirror); +/* + * hmm_mirror_mm_is_alive() - test if mm is still alive + * @mirror: the HMM mm mirror for which we want to lock the mmap_sem + * Returns: false if the mm is dead, true otherwise + * + * This is an optimization it will not accurately always return -EINVAL if the + * mm is dead ie there can be false negative (process is being kill but HMM is + * not yet inform of that). It is only intented to be use to optimize out case + * where driver is about to do something time consuming and it would be better + * to skip it if the mm is dead. + */ +static inline bool hmm_mirror_mm_is_alive(struct hmm_mirror *mirror) +{ + struct mm_struct *mm; + + if (!mirror || !mirror->hmm) + return false; + mm = READ_ONCE(mirror->hmm->mm); + if (mirror->hmm->dead || !mm) + return false; + + return true; +} + /* * Please see Documentation/vm/hmm.rst for how to use the range API. -- cgit v1.2.3 From 55c0ece82ac6ad018a71465d332847dce023eeb3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:20:28 -0700 Subject: mm/hmm: add a helper function that fault pages and map them to a device MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is a all in one helper that fault pages in a range and map them to a device so that every single device driver do not have to re-implement this common pattern. This is taken from ODP RDMA in preparation of ODP RDMA convertion. It will be use by nouveau and other drivers. [jglisse@redhat.com: Was using wrong field and wrong enum] Link: http://lkml.kernel.org/r/20190409175340.26614-1-jglisse@redhat.com Link: http://lkml.kernel.org/r/20190403193318.16478-12-jglisse@redhat.com Signed-off-by: Jérôme Glisse Cc: Ralph Campbell Cc: John Hubbard Cc: Dan Williams Cc: Souptick Joarder Cc: Arnd Bergmann Cc: Balbir Singh Cc: Dan Carpenter Cc: Ira Weiny Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hmm.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/hmm.h b/include/linux/hmm.h index a79fcc6681f5..f81fe2c0f343 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -474,6 +474,15 @@ int hmm_range_register(struct hmm_range *range, void hmm_range_unregister(struct hmm_range *range); long hmm_range_snapshot(struct hmm_range *range); long hmm_range_fault(struct hmm_range *range, bool block); +long hmm_range_dma_map(struct hmm_range *range, + struct device *device, + dma_addr_t *daddrs, + bool block); +long hmm_range_dma_unmap(struct hmm_range *range, + struct vm_area_struct *vma, + struct device *device, + dma_addr_t *daddrs, + bool dirty); /* * HMM_RANGE_DEFAULT_TIMEOUT - default timeout (ms) when waiting for a range -- cgit v1.2.3 From 391aab11e93f36c421abeab62526954d08ac3eed Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:20:31 -0700 Subject: mm/hmm: convert various hmm_pfn_* to device_entry which is a better name MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Convert hmm_pfn_* to device_entry_* as here we are dealing with device driver specific entry format and hmm provide helpers to allow differents components (including HMM) to create/parse device entry. We keep wrapper with the old name so that we can convert driver to use the new API in stages in each device driver tree. This will get remove once all driver are converted. Link: http://lkml.kernel.org/r/20190403193318.16478-13-jglisse@redhat.com Signed-off-by: Jérôme Glisse Cc: Ralph Campbell Cc: John Hubbard Cc: Dan Williams Cc: Ira Weiny Cc: Arnd Bergmann Cc: Balbir Singh Cc: Dan Carpenter Cc: Matthew Wilcox Cc: Souptick Joarder Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hmm.h | 93 ++++++++++++++++++++++++++++++++++++----------------- 1 file changed, 64 insertions(+), 29 deletions(-) (limited to 'include/linux') diff --git a/include/linux/hmm.h b/include/linux/hmm.h index f81fe2c0f343..51ec27a84668 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -239,36 +239,36 @@ static inline bool hmm_range_valid(struct hmm_range *range) } /* - * hmm_pfn_to_page() - return struct page pointed to by a valid HMM pfn - * @range: range use to decode HMM pfn value - * @pfn: HMM pfn value to get corresponding struct page from - * Returns: struct page pointer if pfn is a valid HMM pfn, NULL otherwise + * hmm_device_entry_to_page() - return struct page pointed to by a device entry + * @range: range use to decode device entry value + * @entry: device entry value to get corresponding struct page from + * Returns: struct page pointer if entry is a valid, NULL otherwise * - * If the HMM pfn is valid (ie valid flag set) then return the struct page - * matching the pfn value stored in the HMM pfn. Otherwise return NULL. + * If the device entry is valid (ie valid flag set) then return the struct page + * matching the entry value. Otherwise return NULL. */ -static inline struct page *hmm_pfn_to_page(const struct hmm_range *range, - uint64_t pfn) +static inline struct page *hmm_device_entry_to_page(const struct hmm_range *range, + uint64_t entry) { - if (pfn == range->values[HMM_PFN_NONE]) + if (entry == range->values[HMM_PFN_NONE]) return NULL; - if (pfn == range->values[HMM_PFN_ERROR]) + if (entry == range->values[HMM_PFN_ERROR]) return NULL; - if (pfn == range->values[HMM_PFN_SPECIAL]) + if (entry == range->values[HMM_PFN_SPECIAL]) return NULL; - if (!(pfn & range->flags[HMM_PFN_VALID])) + if (!(entry & range->flags[HMM_PFN_VALID])) return NULL; - return pfn_to_page(pfn >> range->pfn_shift); + return pfn_to_page(entry >> range->pfn_shift); } /* - * hmm_pfn_to_pfn() - return pfn value store in a HMM pfn - * @range: range use to decode HMM pfn value - * @pfn: HMM pfn value to extract pfn from - * Returns: pfn value if HMM pfn is valid, -1UL otherwise + * hmm_device_entry_to_pfn() - return pfn value store in a device entry + * @range: range use to decode device entry value + * @entry: device entry to extract pfn from + * Returns: pfn value if device entry is valid, -1UL otherwise */ -static inline unsigned long hmm_pfn_to_pfn(const struct hmm_range *range, - uint64_t pfn) +static inline unsigned long +hmm_device_entry_to_pfn(const struct hmm_range *range, uint64_t pfn) { if (pfn == range->values[HMM_PFN_NONE]) return -1UL; @@ -282,31 +282,66 @@ static inline unsigned long hmm_pfn_to_pfn(const struct hmm_range *range, } /* - * hmm_pfn_from_page() - create a valid HMM pfn value from struct page + * hmm_device_entry_from_page() - create a valid device entry for a page * @range: range use to encode HMM pfn value - * @page: struct page pointer for which to create the HMM pfn - * Returns: valid HMM pfn for the page + * @page: page for which to create the device entry + * Returns: valid device entry for the page */ -static inline uint64_t hmm_pfn_from_page(const struct hmm_range *range, - struct page *page) +static inline uint64_t hmm_device_entry_from_page(const struct hmm_range *range, + struct page *page) { return (page_to_pfn(page) << range->pfn_shift) | range->flags[HMM_PFN_VALID]; } /* - * hmm_pfn_from_pfn() - create a valid HMM pfn value from pfn + * hmm_device_entry_from_pfn() - create a valid device entry value from pfn * @range: range use to encode HMM pfn value - * @pfn: pfn value for which to create the HMM pfn - * Returns: valid HMM pfn for the pfn + * @pfn: pfn value for which to create the device entry + * Returns: valid device entry for the pfn */ -static inline uint64_t hmm_pfn_from_pfn(const struct hmm_range *range, - unsigned long pfn) +static inline uint64_t hmm_device_entry_from_pfn(const struct hmm_range *range, + unsigned long pfn) { return (pfn << range->pfn_shift) | range->flags[HMM_PFN_VALID]; } +/* + * Old API: + * hmm_pfn_to_page() + * hmm_pfn_to_pfn() + * hmm_pfn_from_page() + * hmm_pfn_from_pfn() + * + * This are the OLD API please use new API, it is here to avoid cross-tree + * merge painfullness ie we convert things to new API in stages. + */ +static inline struct page *hmm_pfn_to_page(const struct hmm_range *range, + uint64_t pfn) +{ + return hmm_device_entry_to_page(range, pfn); +} + +static inline unsigned long hmm_pfn_to_pfn(const struct hmm_range *range, + uint64_t pfn) +{ + return hmm_device_entry_to_pfn(range, pfn); +} + +static inline uint64_t hmm_pfn_from_page(const struct hmm_range *range, + struct page *page) +{ + return hmm_device_entry_from_page(range, page); +} + +static inline uint64_t hmm_pfn_from_pfn(const struct hmm_range *range, + unsigned long pfn) +{ + return hmm_device_entry_from_pfn(range, pfn); +} + + #if IS_ENABLED(CONFIG_HMM_MIRROR) /* -- cgit v1.2.3 From 4a83bfe916f3d2100df5bc8389bd182a537ced3e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:20:34 -0700 Subject: mm/mmu_notifier: helper to test if a range invalidation is blockable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Patch series "mmu notifier provide context informations", v6. Here I am not posting users of this, they already have been posted to appropriate mailing list [6] and will be merge through the appropriate tree once this patchset is upstream. Note that this serie does not change any behavior for any existing code. It just pass down more information to mmu notifier listener. The rationale for this patchset: CPU page table update can happens for many reasons, not only as a result of a syscall (munmap(), mprotect(), mremap(), madvise(), ...) but also as a result of kernel activities (memory compression, reclaim, migration, ...). This patchset introduce a set of enums that can be associated with each of the events triggering a mmu notifier: - UNMAP: munmap() or mremap() - CLEAR: page table is cleared (migration, compaction, reclaim, ...) - PROTECTION_VMA: change in access protections for the range - PROTECTION_PAGE: change in access protections for page in the range - SOFT_DIRTY: soft dirtyness tracking Being able to identify munmap() and mremap() from other reasons why the page table is cleared is important to allow user of mmu notifier to update their own internal tracking structure accordingly (on munmap or mremap it is not longer needed to track range of virtual address as it becomes invalid). Without this serie, driver are force to assume that every notification is an munmap which triggers useless trashing within drivers that associate structure with range of virtual address. Each driver is force to free up its tracking structure and then restore it on next device page fault. With this series we can also optimize device page table update. Patches to use this are at https://lkml.org/lkml/2019/1/23/833 https://lkml.org/lkml/2019/1/23/834 https://lkml.org/lkml/2019/1/23/832 https://lkml.org/lkml/2019/1/23/831 Moreover this can also be used to optimize out some page table updates such as for KVM where we can update the secondary MMU directly from the callback instead of clearing it. ACKS AMD/RADEON https://lkml.org/lkml/2019/2/1/395 ACKS RDMA https://lkml.org/lkml/2018/12/6/1473 This patch (of 8): Simple helpers to test if range invalidation is blockable. Latter patches use cocinnelle to convert all direct dereference of range-> blockable to use this function instead so that we can convert the blockable field to an unsigned for more flags. Link: http://lkml.kernel.org/r/20190326164747.24405-2-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reviewed-by: Ralph Campbell Reviewed-by: Ira Weiny Cc: Christian König Cc: Joonas Lahtinen Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Jan Kara Cc: Andrea Arcangeli Cc: Peter Xu Cc: Felix Kuehling Cc: Jason Gunthorpe Cc: Ross Zwisler Cc: Dan Williams Cc: Paolo Bonzini Cc: Radim Krcmar Cc: Michal Hocko Cc: Christian Koenig Cc: John Hubbard Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmu_notifier.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index 4050ec1c3b45..e630def131ce 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -226,6 +226,12 @@ extern void __mmu_notifier_invalidate_range_end(struct mmu_notifier_range *r, extern void __mmu_notifier_invalidate_range(struct mm_struct *mm, unsigned long start, unsigned long end); +static inline bool +mmu_notifier_range_blockable(const struct mmu_notifier_range *range) +{ + return range->blockable; +} + static inline void mmu_notifier_release(struct mm_struct *mm) { if (mm_has_notifiers(mm)) @@ -455,6 +461,11 @@ static inline void _mmu_notifier_range_init(struct mmu_notifier_range *range, #define mmu_notifier_range_init(range, mm, start, end) \ _mmu_notifier_range_init(range, start, end) +static inline bool +mmu_notifier_range_blockable(const struct mmu_notifier_range *range) +{ + return true; +} static inline int mm_has_notifiers(struct mm_struct *mm) { -- cgit v1.2.3 From 27560ee96f40017075bcb975b85f85dae3622f01 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:20:42 -0700 Subject: mm/mmu_notifier: convert mmu_notifier_range->blockable to a flags MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use an unsigned field for flags other than blockable and convert the blockable field to be one of those flags. Link: http://lkml.kernel.org/r/20190326164747.24405-4-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reviewed-by: Ralph Campbell Reviewed-by: Ira Weiny Cc: Christian König Cc: Joonas Lahtinen Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Jan Kara Cc: Andrea Arcangeli Cc: Peter Xu Cc: Felix Kuehling Cc: Jason Gunthorpe Cc: Ross Zwisler Cc: Dan Williams Cc: Paolo Bonzini Cc: Radim Krcmar Cc: Michal Hocko Cc: Christian Koenig Cc: John Hubbard Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmu_notifier.h | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index e630def131ce..c8672c366f67 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -25,11 +25,13 @@ struct mmu_notifier_mm { spinlock_t lock; }; +#define MMU_NOTIFIER_RANGE_BLOCKABLE (1 << 0) + struct mmu_notifier_range { struct mm_struct *mm; unsigned long start; unsigned long end; - bool blockable; + unsigned flags; }; struct mmu_notifier_ops { @@ -229,7 +231,7 @@ extern void __mmu_notifier_invalidate_range(struct mm_struct *mm, static inline bool mmu_notifier_range_blockable(const struct mmu_notifier_range *range) { - return range->blockable; + return (range->flags & MMU_NOTIFIER_RANGE_BLOCKABLE); } static inline void mmu_notifier_release(struct mm_struct *mm) @@ -275,7 +277,7 @@ static inline void mmu_notifier_invalidate_range_start(struct mmu_notifier_range *range) { if (mm_has_notifiers(range->mm)) { - range->blockable = true; + range->flags |= MMU_NOTIFIER_RANGE_BLOCKABLE; __mmu_notifier_invalidate_range_start(range); } } @@ -284,7 +286,7 @@ static inline int mmu_notifier_invalidate_range_start_nonblock(struct mmu_notifier_range *range) { if (mm_has_notifiers(range->mm)) { - range->blockable = false; + range->flags &= ~MMU_NOTIFIER_RANGE_BLOCKABLE; return __mmu_notifier_invalidate_range_start(range); } return 0; @@ -331,6 +333,7 @@ static inline void mmu_notifier_range_init(struct mmu_notifier_range *range, range->mm = mm; range->start = start; range->end = end; + range->flags = 0; } #define ptep_clear_flush_young_notify(__vma, __address, __ptep) \ -- cgit v1.2.3 From d87f055b94ea9270c491b5e650dd776ecc30d7c9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:20:45 -0700 Subject: mm/mmu_notifier: contextual information for event enums MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit CPU page table update can happens for many reasons, not only as a result of a syscall (munmap(), mprotect(), mremap(), madvise(), ...) but also as a result of kernel activities (memory compression, reclaim, migration, ...). This patch introduce a set of enums that can be associated with each of the events triggering a mmu notifier. Latter patches take advantages of those enum values. - UNMAP: munmap() or mremap() - CLEAR: page table is cleared (migration, compaction, reclaim, ...) - PROTECTION_VMA: change in access protections for the range - PROTECTION_PAGE: change in access protections for page in the range - SOFT_DIRTY: soft dirtyness tracking Being able to identify munmap() and mremap() from other reasons why the page table is cleared is important to allow user of mmu notifier to update their own internal tracking structure accordingly (on munmap or mremap it is not longer needed to track range of virtual address as it becomes invalid). Link: http://lkml.kernel.org/r/20190326164747.24405-5-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reviewed-by: Ralph Campbell Reviewed-by: Ira Weiny Cc: Christian König Cc: Joonas Lahtinen Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Jan Kara Cc: Andrea Arcangeli Cc: Peter Xu Cc: Felix Kuehling Cc: Jason Gunthorpe Cc: Ross Zwisler Cc: Dan Williams Cc: Paolo Bonzini Cc: Radim Krcmar Cc: Michal Hocko Cc: Christian Koenig Cc: John Hubbard Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmu_notifier.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index c8672c366f67..2386e71ac1b8 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -10,6 +10,36 @@ struct mmu_notifier; struct mmu_notifier_ops; +/** + * enum mmu_notifier_event - reason for the mmu notifier callback + * @MMU_NOTIFY_UNMAP: either munmap() that unmap the range or a mremap() that + * move the range + * + * @MMU_NOTIFY_CLEAR: clear page table entry (many reasons for this like + * madvise() or replacing a page by another one, ...). + * + * @MMU_NOTIFY_PROTECTION_VMA: update is due to protection change for the range + * ie using the vma access permission (vm_page_prot) to update the whole range + * is enough no need to inspect changes to the CPU page table (mprotect() + * syscall) + * + * @MMU_NOTIFY_PROTECTION_PAGE: update is due to change in read/write flag for + * pages in the range so to mirror those changes the user must inspect the CPU + * page table (from the end callback). + * + * @MMU_NOTIFY_SOFT_DIRTY: soft dirty accounting (still same page and same + * access flags). User should soft dirty the page in the end callback to make + * sure that anyone relying on soft dirtyness catch pages that might be written + * through non CPU mappings. + */ +enum mmu_notifier_event { + MMU_NOTIFY_UNMAP = 0, + MMU_NOTIFY_CLEAR, + MMU_NOTIFY_PROTECTION_VMA, + MMU_NOTIFY_PROTECTION_PAGE, + MMU_NOTIFY_SOFT_DIRTY, +}; + #ifdef CONFIG_MMU_NOTIFIER /* -- cgit v1.2.3 From 6f4f13e8d9e27cefd2cd88dd4fd80aa6d68b9131 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:20:49 -0700 Subject: mm/mmu_notifier: contextual information for event triggering invalidation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit CPU page table update can happens for many reasons, not only as a result of a syscall (munmap(), mprotect(), mremap(), madvise(), ...) but also as a result of kernel activities (memory compression, reclaim, migration, ...). Users of mmu notifier API track changes to the CPU page table and take specific action for them. While current API only provide range of virtual address affected by the change, not why the changes is happening. This patchset do the initial mechanical convertion of all the places that calls mmu_notifier_range_init to also provide the default MMU_NOTIFY_UNMAP event as well as the vma if it is know (most invalidation happens against a given vma). Passing down the vma allows the users of mmu notifier to inspect the new vma page protection. The MMU_NOTIFY_UNMAP is always the safe default as users of mmu notifier should assume that every for the range is going away when that event happens. A latter patch do convert mm call path to use a more appropriate events for each call. This is done as 2 patches so that no call site is forgotten especialy as it uses this following coccinelle patch: %<---------------------------------------------------------------------- @@ identifier I1, I2, I3, I4; @@ static inline void mmu_notifier_range_init(struct mmu_notifier_range *I1, +enum mmu_notifier_event event, +unsigned flags, +struct vm_area_struct *vma, struct mm_struct *I2, unsigned long I3, unsigned long I4) { ... } @@ @@ -#define mmu_notifier_range_init(range, mm, start, end) +#define mmu_notifier_range_init(range, event, flags, vma, mm, start, end) @@ expression E1, E3, E4; identifier I1; @@ <... mmu_notifier_range_init(E1, +MMU_NOTIFY_UNMAP, 0, I1, I1->vm_mm, E3, E4) ...> @@ expression E1, E2, E3, E4; identifier FN, VMA; @@ FN(..., struct vm_area_struct *VMA, ...) { <... mmu_notifier_range_init(E1, +MMU_NOTIFY_UNMAP, 0, VMA, E2, E3, E4) ...> } @@ expression E1, E2, E3, E4; identifier FN, VMA; @@ FN(...) { struct vm_area_struct *VMA; <... mmu_notifier_range_init(E1, +MMU_NOTIFY_UNMAP, 0, VMA, E2, E3, E4) ...> } @@ expression E1, E2, E3, E4; identifier FN; @@ FN(...) { <... mmu_notifier_range_init(E1, +MMU_NOTIFY_UNMAP, 0, NULL, E2, E3, E4) ...> } ---------------------------------------------------------------------->% Applied with: spatch --all-includes --sp-file mmu-notifier.spatch fs/proc/task_mmu.c --in-place spatch --sp-file mmu-notifier.spatch --dir kernel/events/ --in-place spatch --sp-file mmu-notifier.spatch --dir mm --in-place Link: http://lkml.kernel.org/r/20190326164747.24405-6-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reviewed-by: Ralph Campbell Reviewed-by: Ira Weiny Cc: Christian König Cc: Joonas Lahtinen Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Jan Kara Cc: Andrea Arcangeli Cc: Peter Xu Cc: Felix Kuehling Cc: Jason Gunthorpe Cc: Ross Zwisler Cc: Dan Williams Cc: Paolo Bonzini Cc: Radim Krcmar Cc: Michal Hocko Cc: Christian Koenig Cc: John Hubbard Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmu_notifier.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index 2386e71ac1b8..62f94cd85455 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -356,6 +356,9 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm) static inline void mmu_notifier_range_init(struct mmu_notifier_range *range, + enum mmu_notifier_event event, + unsigned flags, + struct vm_area_struct *vma, struct mm_struct *mm, unsigned long start, unsigned long end) @@ -491,7 +494,7 @@ static inline void _mmu_notifier_range_init(struct mmu_notifier_range *range, range->end = end; } -#define mmu_notifier_range_init(range, mm, start, end) \ +#define mmu_notifier_range_init(range,event,flags,vma,mm,start,end) \ _mmu_notifier_range_init(range, start, end) static inline bool -- cgit v1.2.3 From bf198b2b34bfd4bc9bd6abb33bf650b74329a2ac Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:20:57 -0700 Subject: mm/mmu_notifier: pass down vma and reasons why mmu notifier is happening MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit CPU page table update can happens for many reasons, not only as a result of a syscall (munmap(), mprotect(), mremap(), madvise(), ...) but also as a result of kernel activities (memory compression, reclaim, migration, ...). Users of mmu notifier API track changes to the CPU page table and take specific action for them. While current API only provide range of virtual address affected by the change, not why the changes is happening This patch is just passing down the new informations by adding it to the mmu_notifier_range structure. Link: http://lkml.kernel.org/r/20190326164747.24405-8-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reviewed-by: Ralph Campbell Reviewed-by: Ira Weiny Cc: Christian König Cc: Joonas Lahtinen Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Jan Kara Cc: Andrea Arcangeli Cc: Peter Xu Cc: Felix Kuehling Cc: Jason Gunthorpe Cc: Ross Zwisler Cc: Dan Williams Cc: Paolo Bonzini Cc: Radim Krcmar Cc: Michal Hocko Cc: Christian Koenig Cc: John Hubbard Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmu_notifier.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index 62f94cd85455..0379956fff23 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -58,10 +58,12 @@ struct mmu_notifier_mm { #define MMU_NOTIFIER_RANGE_BLOCKABLE (1 << 0) struct mmu_notifier_range { + struct vm_area_struct *vma; struct mm_struct *mm; unsigned long start; unsigned long end; unsigned flags; + enum mmu_notifier_event event; }; struct mmu_notifier_ops { @@ -363,10 +365,12 @@ static inline void mmu_notifier_range_init(struct mmu_notifier_range *range, unsigned long start, unsigned long end) { + range->vma = vma; + range->event = event; range->mm = mm; range->start = start; range->end = end; - range->flags = 0; + range->flags = flags; } #define ptep_clear_flush_young_notify(__vma, __address, __ptep) \ -- cgit v1.2.3 From c6d23413f81bd69935afedaf1da9d55b03febf58 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Mon, 13 May 2019 17:21:00 -0700 Subject: mm/mmu_notifier: mmu_notifier_range_update_to_read_only() helper MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Helper to test if a range is updated to read only (it is still valid to read from the range). This is useful for device driver or anyone who wish to optimize out update when they know that they already have the range map read only. Link: http://lkml.kernel.org/r/20190326164747.24405-9-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reviewed-by: Ralph Campbell Reviewed-by: Ira Weiny Cc: Christian König Cc: Joonas Lahtinen Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Jan Kara Cc: Andrea Arcangeli Cc: Peter Xu Cc: Felix Kuehling Cc: Jason Gunthorpe Cc: Ross Zwisler Cc: Dan Williams Cc: Paolo Bonzini Cc: Radim Krcmar Cc: Michal Hocko Cc: Christian Koenig Cc: John Hubbard Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmu_notifier.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index 0379956fff23..b6c004bd9f6a 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -259,6 +259,8 @@ extern void __mmu_notifier_invalidate_range_end(struct mmu_notifier_range *r, bool only_end); extern void __mmu_notifier_invalidate_range(struct mm_struct *mm, unsigned long start, unsigned long end); +extern bool +mmu_notifier_range_update_to_read_only(const struct mmu_notifier_range *range); static inline bool mmu_notifier_range_blockable(const struct mmu_notifier_range *range) @@ -568,6 +570,8 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm) { } +#define mmu_notifier_range_update_to_read_only(r) false + #define ptep_clear_flush_young_notify ptep_clear_flush_young #define pmdp_clear_flush_young_notify pmdp_clear_flush_young #define ptep_clear_young_notify ptep_test_and_clear_young -- cgit v1.2.3 From 5470dea49f5382257c242ac617d908267727f1a8 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Mon, 13 May 2019 17:21:10 -0700 Subject: mm: use mm_zero_struct_page from SPARC on all 64b architectures Patch series "Deferred page init improvements", v7. This patchset is essentially a refactor of the page initialization logic that is meant to provide for better code reuse while providing a significant improvement in deferred page initialization performance. In my testing on an x86_64 system with 384GB of RAM I have seen the following. In the case of regular memory initialization the deferred init time was decreased from 3.75s to 1.38s on average. This amounts to a 172% improvement for the deferred memory initialization performance. I have called out the improvement observed with each patch. This patch (of 4): Use the same approach that was already in use on Sparc on all the architectures that support a 64b long. This is mostly motivated by the fact that 7 to 10 store/move instructions are likely always going to be faster than having to call into a function that is not specialized for handling page init. An added advantage to doing it this way is that the compiler can get away with combining writes in the __init_single_page call. As a result the memset call will be reduced to only about 4 write operations, or at least that is what I am seeing with GCC 6.2 as the flags, LRU pointers, and count/mapcount seem to be cancelling out at least 4 of the 8 assignments on my system. One change I had to make to the function was to reduce the minimum page size to 56 to support some powerpc64 configurations. This change should introduce no change on SPARC since it already had this code. In the case of x86_64 I saw a reduction from 3.75s to 2.80s when initializing 384GB of RAM per node. Pavel Tatashin tested on a system with Broadcom's Stingray CPU and 48GB of RAM and found that __init_single_page() takes 19.30ns / 64-byte struct page before this patch and with this patch it takes 17.33ns / 64-byte struct page. Mike Rapoport ran a similar test on a OpenPower (S812LC 8348-21C) with Power8 processor and 128GB or RAM. His results per 64-byte struct page were 4.68ns before, and 4.59ns after this patch. Link: http://lkml.kernel.org/r/20190405221213.12227.9392.stgit@localhost.localdomain Signed-off-by: Alexander Duyck Reviewed-by: Pavel Tatashin Acked-by: Michal Hocko Cc: Mike Rapoport Cc: Dan Williams Cc: Dave Jiang Cc: David S. Miller Cc: Ingo Molnar Cc: Khalid Aziz Cc: "Kirill A. Shutemov" Cc: Laurent Dufour Cc: Matthew Wilcox Cc: Mel Gorman Cc: Mike Rapoport Cc: Pavel Tatashin Cc: Vlastimil Babka Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 41 ++++++++++++++++++++++++++++++++++++++--- 1 file changed, 38 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mm.h b/include/linux/mm.h index e6b6be15609e..abb7eb7ef0f2 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -124,10 +124,45 @@ extern int mmap_rnd_compat_bits __read_mostly; /* * On some architectures it is expensive to call memset() for small sizes. - * Those architectures should provide their own implementation of "struct page" - * zeroing by defining this macro in . + * If an architecture decides to implement their own version of + * mm_zero_struct_page they should wrap the defines below in a #ifndef and + * define their own version of this macro in */ -#ifndef mm_zero_struct_page +#if BITS_PER_LONG == 64 +/* This function must be updated when the size of struct page grows above 80 + * or reduces below 56. The idea that compiler optimizes out switch() + * statement, and only leaves move/store instructions. Also the compiler can + * combine write statments if they are both assignments and can be reordered, + * this can result in several of the writes here being dropped. + */ +#define mm_zero_struct_page(pp) __mm_zero_struct_page(pp) +static inline void __mm_zero_struct_page(struct page *page) +{ + unsigned long *_pp = (void *)page; + + /* Check that struct page is either 56, 64, 72, or 80 bytes */ + BUILD_BUG_ON(sizeof(struct page) & 7); + BUILD_BUG_ON(sizeof(struct page) < 56); + BUILD_BUG_ON(sizeof(struct page) > 80); + + switch (sizeof(struct page)) { + case 80: + _pp[9] = 0; /* fallthrough */ + case 72: + _pp[8] = 0; /* fallthrough */ + case 64: + _pp[7] = 0; /* fallthrough */ + case 56: + _pp[6] = 0; + _pp[5] = 0; + _pp[4] = 0; + _pp[3] = 0; + _pp[2] = 0; + _pp[1] = 0; + _pp[0] = 0; + } +} +#else #define mm_zero_struct_page(pp) ((void)memset((pp), 0, sizeof(struct page))) #endif -- cgit v1.2.3 From 837566e7e08e3f89444166444836a8a49b9f9322 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Mon, 13 May 2019 17:21:17 -0700 Subject: mm: implement new zone specific memblock iterator Introduce a new iterator for_each_free_mem_pfn_range_in_zone. This iterator will take care of making sure a given memory range provided is in fact contained within a zone. It takes are of all the bounds checking we were doing in deferred_grow_zone, and deferred_init_memmap. In addition it should help to speed up the search a bit by iterating until the end of a range is greater than the start of the zone pfn range, and will exit completely if the start is beyond the end of the zone. Link: http://lkml.kernel.org/r/20190405221225.12227.22573.stgit@localhost.localdomain Signed-off-by: Alexander Duyck Reviewed-by: Pavel Tatashin Reviewed-by: Mike Rapoport Cc: Dan Williams Cc: Dave Jiang Cc: David S. Miller Cc: Ingo Molnar Cc: Khalid Aziz Cc: "Kirill A. Shutemov" Cc: Laurent Dufour Cc: Matthew Wilcox Cc: Mel Gorman Cc: Michal Hocko Cc: Mike Rapoport Cc: Pavel Tatashin Cc: Vlastimil Babka Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memblock.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'include/linux') diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 294d5d80e150..f8b78892b977 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -240,6 +240,31 @@ void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn, i >= 0; __next_mem_pfn_range(&i, nid, p_start, p_end, p_nid)) #endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */ +#ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT +void __next_mem_pfn_range_in_zone(u64 *idx, struct zone *zone, + unsigned long *out_spfn, + unsigned long *out_epfn); +/** + * for_each_free_mem_range_in_zone - iterate through zone specific free + * memblock areas + * @i: u64 used as loop variable + * @zone: zone in which all of the memory blocks reside + * @p_start: ptr to phys_addr_t for start address of the range, can be %NULL + * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL + * + * Walks over free (memory && !reserved) areas of memblock in a specific + * zone. Available once memblock and an empty zone is initialized. The main + * assumption is that the zone start, end, and pgdat have been associated. + * This way we can use the zone to determine NUMA node, and if a given part + * of the memblock is valid for the zone. + */ +#define for_each_free_mem_pfn_range_in_zone(i, zone, p_start, p_end) \ + for (i = 0, \ + __next_mem_pfn_range_in_zone(&i, zone, p_start, p_end); \ + i != U64_MAX; \ + __next_mem_pfn_range_in_zone(&i, zone, p_start, p_end)) +#endif /* CONFIG_DEFERRED_STRUCT_PAGE_INIT */ + /** * for_each_free_mem_range - iterate through free memblock areas * @i: u64 used as loop variable -- cgit v1.2.3 From 0e56acae4b4dd4a9fbe897854ab83a109e2a9e11 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Mon, 13 May 2019 17:21:20 -0700 Subject: mm: initialize MAX_ORDER_NR_PAGES at a time instead of doing larger sections Add yet another iterator, for_each_free_mem_range_in_zone_from, and then use it to support initializing and freeing pages in groups no larger than MAX_ORDER_NR_PAGES. By doing this we can greatly improve the cache locality of the pages while we do several loops over them in the init and freeing process. We are able to tighten the loops further as a result of the "from" iterator as we can perform the initial checks for first_init_pfn in our first call to the iterator, and continue without the need for those checks via the "from" iterator. I have added this functionality in the function called deferred_init_mem_pfn_range_in_zone that primes the iterator and causes us to exit if we encounter any failure. On my x86_64 test system with 384GB of memory per node I saw a reduction in initialization time from 1.85s to 1.38s as a result of this patch. Link: http://lkml.kernel.org/r/20190405221231.12227.85836.stgit@localhost.localdomain Signed-off-by: Alexander Duyck Reviewed-by: Pavel Tatashin Cc: Mike Rapoport Cc: Michal Hocko Cc: Dave Jiang Cc: Matthew Wilcox Cc: Ingo Molnar Cc: Cc: Khalid Aziz Cc: Mike Rapoport Cc: Vlastimil Babka Cc: Dan Williams Cc: Laurent Dufour Cc: Mel Gorman Cc: David S. Miller Cc: "Kirill A. Shutemov" Cc: Pavel Tatashin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memblock.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/linux') diff --git a/include/linux/memblock.h b/include/linux/memblock.h index f8b78892b977..47e3c0612592 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -263,6 +263,22 @@ void __next_mem_pfn_range_in_zone(u64 *idx, struct zone *zone, __next_mem_pfn_range_in_zone(&i, zone, p_start, p_end); \ i != U64_MAX; \ __next_mem_pfn_range_in_zone(&i, zone, p_start, p_end)) + +/** + * for_each_free_mem_range_in_zone_from - iterate through zone specific + * free memblock areas from a given point + * @i: u64 used as loop variable + * @zone: zone in which all of the memory blocks reside + * @p_start: ptr to phys_addr_t for start address of the range, can be %NULL + * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL + * + * Walks over free (memory && !reserved) areas of memblock in a specific + * zone, continuing from current position. Available as soon as memblock is + * initialized. + */ +#define for_each_free_mem_pfn_range_in_zone_from(i, zone, p_start, p_end) \ + for (; i != U64_MAX; \ + __next_mem_pfn_range_in_zone(&i, zone, p_start, p_end)) #endif /* CONFIG_DEFERRED_STRUCT_PAGE_INIT */ /** -- cgit v1.2.3 From 5557c766abad25acc8091ccb9641b96e3b3da06f Mon Sep 17 00:00:00 2001 From: Michal Hocko Date: Mon, 13 May 2019 17:21:24 -0700 Subject: mm, memory_hotplug: cleanup memory offline path check_pages_isolated_cb currently accounts the whole pfn range as being offlined if test_pages_isolated suceeds on the range. This is based on the assumption that all pages in the range are freed which is currently the case in most cases but it won't be with later changes, as pages marked as vmemmap won't be isolated. Move the offlined pages counting to offline_isolated_pages_cb and rely on __offline_isolated_pages to return the correct value. check_pages_isolated_cb will still do it's primary job and check the pfn range. While we are at it remove check_pages_isolated and offline_isolated_pages and use directly walk_system_ram_range as do in online_pages. Link: http://lkml.kernel.org/r/20190408082633.2864-2-osalvador@suse.de Reviewed-by: David Hildenbrand Signed-off-by: Michal Hocko Signed-off-by: Oscar Salvador Cc: Dan Williams Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memory_hotplug.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 8ade08c50d26..3c8cf347804c 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -87,7 +87,8 @@ extern int add_one_highpage(struct page *page, int pfn, int bad_ppro); extern int online_pages(unsigned long, unsigned long, int); extern int test_pages_in_a_zone(unsigned long start_pfn, unsigned long end_pfn, unsigned long *valid_start, unsigned long *valid_end); -extern void __offline_isolated_pages(unsigned long, unsigned long); +extern unsigned long __offline_isolated_pages(unsigned long start_pfn, + unsigned long end_pfn); typedef void (*online_page_callback_t)(struct page *page, unsigned int order); -- cgit v1.2.3 From 940519f0c8b757fdcbc5d14c93cdaada20ded14c Mon Sep 17 00:00:00 2001 From: Michal Hocko Date: Mon, 13 May 2019 17:21:26 -0700 Subject: mm, memory_hotplug: provide a more generic restrictions for memory hotplug arch_add_memory, __add_pages take a want_memblock which controls whether the newly added memory should get the sysfs memblock user API (e.g. ZONE_DEVICE users do not want/need this interface). Some callers even want to control where do we allocate the memmap from by configuring altmap. Add a more generic hotplug context for arch_add_memory and __add_pages. struct mhp_restrictions contains flags which contains additional features to be enabled by the memory hotplug (MHP_MEMBLOCK_API currently) and altmap for alternative memmap allocator. This patch shouldn't introduce any functional change. [akpm@linux-foundation.org: build fix] Link: http://lkml.kernel.org/r/20190408082633.2864-3-osalvador@suse.de Signed-off-by: Michal Hocko Signed-off-by: Oscar Salvador Cc: Dan Williams Cc: David Hildenbrand Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memory_hotplug.h | 31 ++++++++++++++++++++++++------- 1 file changed, 24 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 3c8cf347804c..b24aca54353e 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -53,6 +53,16 @@ enum { MMOP_ONLINE_MOVABLE, }; +/* + * Restrictions for the memory hotplug: + * flags: MHP_ flags + * altmap: alternative allocator for memmap array + */ +struct mhp_restrictions { + unsigned long flags; + struct vmem_altmap *altmap; +}; + /* * Zone resizing functions * @@ -101,6 +111,8 @@ extern void __online_page_free(struct page *page); extern int try_online_node(int nid); +extern int arch_add_memory(int nid, u64 start, u64 size, + struct mhp_restrictions *restrictions); extern u64 max_mem_size; extern bool memhp_auto_online; @@ -118,20 +130,27 @@ extern int __remove_pages(struct zone *zone, unsigned long start_pfn, unsigned long nr_pages, struct vmem_altmap *altmap); #endif /* CONFIG_MEMORY_HOTREMOVE */ +/* + * Do we want sysfs memblock files created. This will allow userspace to online + * and offline memory explicitly. Lack of this bit means that the caller has to + * call move_pfn_range_to_zone to finish the initialization. + */ + +#define MHP_MEMBLOCK_API (1<<0) + /* reasonably generic interface to expand the physical pages */ extern int __add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages, - struct vmem_altmap *altmap, bool want_memblock); + struct mhp_restrictions *restrictions); #ifndef CONFIG_ARCH_HAS_ADD_PAGES static inline int add_pages(int nid, unsigned long start_pfn, - unsigned long nr_pages, struct vmem_altmap *altmap, - bool want_memblock) + unsigned long nr_pages, struct mhp_restrictions *restrictions) { - return __add_pages(nid, start_pfn, nr_pages, altmap, want_memblock); + return __add_pages(nid, start_pfn, nr_pages, restrictions); } #else /* ARCH_HAS_ADD_PAGES */ int add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages, - struct vmem_altmap *altmap, bool want_memblock); + struct mhp_restrictions *restrictions); #endif /* ARCH_HAS_ADD_PAGES */ #ifdef CONFIG_NUMA @@ -332,8 +351,6 @@ extern int walk_memory_range(unsigned long start_pfn, unsigned long end_pfn, extern int __add_memory(int nid, u64 start, u64 size); extern int add_memory(int nid, u64 start, u64 size); extern int add_memory_resource(int nid, struct resource *resource); -extern int arch_add_memory(int nid, u64 start, u64 size, - struct vmem_altmap *altmap, bool want_memblock); extern void move_pfn_range_to_zone(struct zone *zone, unsigned long start_pfn, unsigned long nr_pages, struct vmem_altmap *altmap); extern bool is_memblock_offlined(struct memory_block *mem); -- cgit v1.2.3 From cb7b3a3685b20d3b5900ff24b2cb96d002960189 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Mon, 13 May 2019 17:21:37 -0700 Subject: mm/memory_hotplug: make unregister_memory_section() never fail Failing while removing memory is mostly ignored and cannot really be handled. Let's treat errors in unregister_memory_section() in a nice way, warning, but continuing. Link: http://lkml.kernel.org/r/20190409100148.24703-3-david@redhat.com Signed-off-by: David Hildenbrand Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Cc: Ingo Molnar Cc: Andrew Banman Cc: Mike Travis Cc: David Hildenbrand Cc: Oscar Salvador Cc: Michal Hocko Cc: Pavel Tatashin Cc: Qian Cai Cc: Wei Yang Cc: Arun KS Cc: Mathieu Malaterre Cc: Andy Lutomirski Cc: Benjamin Herrenschmidt Cc: Borislav Petkov Cc: Christophe Leroy Cc: Dave Hansen Cc: Fenghua Yu Cc: Geert Uytterhoeven Cc: Heiko Carstens Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Joonsoo Kim Cc: "Kirill A. Shutemov" Cc: Martin Schwidefsky Cc: Masahiro Yamada Cc: Michael Ellerman Cc: Mike Rapoport Cc: Nicholas Piggin Cc: Oscar Salvador Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Rich Felker Cc: Rob Herring Cc: Stefan Agner Cc: Thomas Gleixner Cc: Tony Luck Cc: Vasily Gorbik Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memory.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/memory.h b/include/linux/memory.h index a6ddefc60517..e1dc1bb2b787 100644 --- a/include/linux/memory.h +++ b/include/linux/memory.h @@ -113,7 +113,7 @@ extern int register_memory_isolate_notifier(struct notifier_block *nb); extern void unregister_memory_isolate_notifier(struct notifier_block *nb); int hotplug_memory_register(int nid, struct mem_section *section); #ifdef CONFIG_MEMORY_HOTREMOVE -extern int unregister_memory_section(struct mem_section *); +extern void unregister_memory_section(struct mem_section *); #endif extern int memory_dev_init(void); extern int memory_notify(unsigned long val, void *v); -- cgit v1.2.3 From ac5c94264580f498e484c854031d0226b3c1038f Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Mon, 13 May 2019 17:21:46 -0700 Subject: mm/memory_hotplug: make __remove_pages() and arch_remove_memory() never fail All callers of arch_remove_memory() ignore errors. And we should really try to remove any errors from the memory removal path. No more errors are reported from __remove_pages(). BUG() in s390x code in case arch_remove_memory() is triggered. We may implement that properly later. WARN in case powerpc code failed to remove the section mapping, which is better than ignoring the error completely right now. Link: http://lkml.kernel.org/r/20190409100148.24703-5-david@redhat.com Signed-off-by: David Hildenbrand Cc: Tony Luck Cc: Fenghua Yu Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Yoshinori Sato Cc: Rich Felker Cc: Dave Hansen Cc: Andy Lutomirski Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: "H. Peter Anvin" Cc: Michal Hocko Cc: Mike Rapoport Cc: Oscar Salvador Cc: "Kirill A. Shutemov" Cc: Christophe Leroy Cc: Stefan Agner Cc: Nicholas Piggin Cc: Pavel Tatashin Cc: Vasily Gorbik Cc: Arun KS Cc: Geert Uytterhoeven Cc: Masahiro Yamada Cc: Rob Herring Cc: Joonsoo Kim Cc: Wei Yang Cc: Qian Cai Cc: Mathieu Malaterre Cc: Andrew Banman Cc: Greg Kroah-Hartman Cc: Ingo Molnar Cc: Mike Travis Cc: Oscar Salvador Cc: "Rafael J. Wysocki" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memory_hotplug.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index b24aca54353e..ae892eef8b82 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -124,10 +124,10 @@ static inline bool movable_node_is_enabled(void) } #ifdef CONFIG_MEMORY_HOTREMOVE -extern int arch_remove_memory(int nid, u64 start, u64 size, - struct vmem_altmap *altmap); -extern int __remove_pages(struct zone *zone, unsigned long start_pfn, - unsigned long nr_pages, struct vmem_altmap *altmap); +extern void arch_remove_memory(int nid, u64 start, u64 size, + struct vmem_altmap *altmap); +extern void __remove_pages(struct zone *zone, unsigned long start_pfn, + unsigned long nr_pages, struct vmem_altmap *altmap); #endif /* CONFIG_MEMORY_HOTREMOVE */ /* -- cgit v1.2.3 From a667d7456f189e3422725dddcd067537feac49c0 Mon Sep 17 00:00:00 2001 From: Souptick Joarder Date: Mon, 13 May 2019 17:21:56 -0700 Subject: mm: introduce new vm_map_pages() and vm_map_pages_zero() API Patch series "mm: Use vm_map_pages() and vm_map_pages_zero() API", v5. This patch (of 5): Previouly drivers have their own way of mapping range of kernel pages/memory into user vma and this was done by invoking vm_insert_page() within a loop. As this pattern is common across different drivers, it can be generalized by creating new functions and using them across the drivers. vm_map_pages() is the API which can be used to map kernel memory/pages in drivers which have considered vm_pgoff vm_map_pages_zero() is the API which can be used to map a range of kernel memory/pages in drivers which have not considered vm_pgoff. vm_pgoff is passed as default 0 for those drivers. We _could_ then at a later "fix" these drivers which are using vm_map_pages_zero() to behave according to the normal vm_pgoff offsetting simply by removing the _zero suffix on the function name and if that causes regressions, it gives us an easy way to revert. Tested on Rockchip hardware and display is working, including talking to Lima via prime. Link: http://lkml.kernel.org/r/751cb8a0f4c3e67e95c58a3b072937617f338eea.1552921225.git.jrdr.linux@gmail.com Signed-off-by: Souptick Joarder Suggested-by: Russell King Suggested-by: Matthew Wilcox Reviewed-by: Mike Rapoport Tested-by: Heiko Stuebner Cc: Michal Hocko Cc: "Kirill A. Shutemov" Cc: Vlastimil Babka Cc: Rik van Riel Cc: Stephen Rothwell Cc: Peter Zijlstra Cc: Robin Murphy Cc: Joonsoo Kim Cc: Thierry Reding Cc: Kees Cook Cc: Marek Szyprowski Cc: Stefan Richter Cc: Sandy Huang Cc: David Airlie Cc: Oleksandr Andrushchenko Cc: Joerg Roedel Cc: Pawel Osciak Cc: Kyungmin Park Cc: Boris Ostrovsky Cc: Juergen Gross Cc: Mauro Carvalho Chehab Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mm.h b/include/linux/mm.h index abb7eb7ef0f2..912614fbbef3 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2579,6 +2579,10 @@ struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr); int remap_pfn_range(struct vm_area_struct *, unsigned long addr, unsigned long pfn, unsigned long size, pgprot_t); int vm_insert_page(struct vm_area_struct *, unsigned long addr, struct page *); +int vm_map_pages(struct vm_area_struct *vma, struct page **pages, + unsigned long num); +int vm_map_pages_zero(struct vm_area_struct *vma, struct page **pages, + unsigned long num); vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn); vm_fault_t vmf_insert_pfn_prot(struct vm_area_struct *vma, unsigned long addr, -- cgit v1.2.3 From 350e88bad4964da6feabee02a1a70381bcdb087e Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Mon, 13 May 2019 17:22:59 -0700 Subject: mm: memblock: make keeping memblock memory opt-in rather than opt-out Most architectures do not need the memblock memory after the page allocator is initialized, but only few enable ARCH_DISCARD_MEMBLOCK in the arch Kconfig. Replacing ARCH_DISCARD_MEMBLOCK with ARCH_KEEP_MEMBLOCK and inverting the logic makes it clear which architectures actually use memblock after system initialization and skips the necessity to add ARCH_DISCARD_MEMBLOCK to the architectures that are still missing that option. Link: http://lkml.kernel.org/r/1556102150-32517-1-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport Acked-by: Michael Ellerman (powerpc) Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Richard Kuo Cc: Tony Luck Cc: Fenghua Yu Cc: Geert Uytterhoeven Cc: Ralf Baechle Cc: Paul Burton Cc: James Hogan Cc: Ley Foon Tan Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Yoshinori Sato Cc: Rich Felker Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: "H. Peter Anvin" Cc: Eric Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memblock.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 47e3c0612592..676d3900e1bd 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -96,13 +96,14 @@ struct memblock { extern struct memblock memblock; extern int memblock_debug; -#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK +#ifndef CONFIG_ARCH_KEEP_MEMBLOCK #define __init_memblock __meminit #define __initdata_memblock __meminitdata void memblock_discard(void); #else #define __init_memblock #define __initdata_memblock +static inline void memblock_discard(void) {} #endif #define memblock_dbg(fmt, ...) \ -- cgit v1.2.3 From 19343b5bdd16ad4ae6b845ef829f68b683c4dfb5 Mon Sep 17 00:00:00 2001 From: Yafang Shao Date: Mon, 13 May 2019 17:23:11 -0700 Subject: mm/page-writeback: introduce tracepoint for wait_on_page_writeback() Recently there have been some hung tasks on our server due to wait_on_page_writeback(), and we want to know the details of this PG_writeback, i.e. this page is writing back to which device. But it is not so convenient to get the details. I think it would be better to introduce a tracepoint for diagnosing the writeback details. Link: http://lkml.kernel.org/r/1556274402-19018-1-git-send-email-laoar.shao@gmail.com Signed-off-by: Yafang Shao Reviewed-by: Andrew Morton Cc: Jan Kara Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pagemap.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 2e8438a1216a..112f15bb5907 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -540,15 +540,7 @@ static inline int wait_on_page_locked_killable(struct page *page) extern void put_and_wait_on_page_locked(struct page *page); -/* - * Wait for a page to complete writeback - */ -static inline void wait_on_page_writeback(struct page *page) -{ - if (PageWriteback(page)) - wait_on_page_bit(page, PG_writeback); -} - +void wait_on_page_writeback(struct page *page); extern void end_page_writeback(struct page *page); void wait_for_stable_page(struct page *page); -- cgit v1.2.3 From a1b8e6abf35b9903807eced67a4c26e440663620 Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Mon, 13 May 2019 17:23:20 -0700 Subject: mm: delete find_get_entries_tag I removed the only user of this and hadn't noticed it was now unused. Link: http://lkml.kernel.org/r/20190430152929.21813-1-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Ross Zwisler Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pagemap.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 112f15bb5907..9ec3544baee2 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -373,9 +373,6 @@ static inline unsigned find_get_pages_tag(struct address_space *mapping, return find_get_pages_range_tag(mapping, index, (pgoff_t)-1, tag, nr_pages, pages); } -unsigned find_get_entries_tag(struct address_space *mapping, pgoff_t start, - xa_mark_t tag, unsigned int nr_entries, - struct page **entries, pgoff_t *indices); struct page *grab_cache_page_write_begin(struct address_space *mapping, pgoff_t index, unsigned flags); -- cgit v1.2.3 From c6110222c6f49ea68169f353565eb865488a8619 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 14 May 2019 01:18:55 +0200 Subject: bpf: add map_lookup_elem_sys_only for lookups from syscall side Add a callback map_lookup_elem_sys_only() that map implementations could use over map_lookup_elem() from system call side in case the map implementation needs to handle the latter differently than from the BPF data path. If map_lookup_elem_sys_only() is set, this will be preferred pick for map lookups out of user space. This hook is used in a follow-up fix for LRU map, but once development window opens, we can convert other map types from map_lookup_elem() (here, the one called upon BPF_MAP_LOOKUP_ELEM cmd is meant) over to use the callback to simplify and clean up the latter. Signed-off-by: Daniel Borkmann Acked-by: Martin KaFai Lau Signed-off-by: Alexei Starovoitov --- include/linux/bpf.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 59631dd0777c..4fb3aa2dc975 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -36,6 +36,7 @@ struct bpf_map_ops { void (*map_free)(struct bpf_map *map); int (*map_get_next_key)(struct bpf_map *map, void *key, void *next_key); void (*map_release_uref)(struct bpf_map *map); + void *(*map_lookup_elem_sys_only)(struct bpf_map *map, void *key); /* funcs callable from userspace and from eBPF programs */ void *(*map_lookup_elem)(struct bpf_map *map, void *key); -- cgit v1.2.3 From 33b2d6302abc4ccea1d9b3f095e2e27b02ca264e Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Tue, 14 May 2019 15:40:56 -0700 Subject: psi: introduce state_mask to represent stalled psi states Patch series "psi: pressure stall monitors", v6. This is a respin of: https://lwn.net/ml/linux-kernel/20190308184311.144521-1-surenb%40google.com/ Android is adopting psi to detect and remedy memory pressure that results in stuttering and decreased responsiveness on mobile devices. Psi gives us the stall information, but because we're dealing with latencies in the millisecond range, periodically reading the pressure files to detect stalls in a timely fashion is not feasible. Psi also doesn't aggregate its averages at a high-enough frequency right now. This patch series extends the psi interface such that users can configure sensitive latency thresholds and use poll() and friends to be notified when these are breached. As high-frequency aggregation is costly, it implements an aggregation method that is optimized for fast, short-interval averaging, and makes the aggregation frequency adaptive, such that high-frequency updates only happen while monitored stall events are actively occurring. With these patches applied, Android can monitor for, and ward off, mounting memory shortages before they cause problems for the user. For example, using memory stall monitors in userspace low memory killer daemon (lmkd) we can detect mounting pressure and kill less important processes before device becomes visibly sluggish. In our memory stress testing psi memory monitors produce roughly 10x less false positives compared to vmpressure signals. Having ability to specify multiple triggers for the same psi metric allows other parts of Android framework to monitor memory state of the device and act accordingly. The new interface is straight-forward. The user opens one of the pressure files for writing and writes a trigger description into the file descriptor that defines the stall state - some or full, and the maximum stall time over a given window of time. E.g.: /* Signal when stall time exceeds 100ms of a 1s window */ char trigger[] = "full 100000 1000000" fd = open("/proc/pressure/memory") write(fd, trigger, sizeof(trigger)) while (poll() >= 0) { ... }; close(fd); When the monitored stall state is entered, psi adapts its aggregation frequency according to what the configured time window requires in order to emit event signals in a timely fashion. Once the stalling subsides, aggregation reverts back to normal. The trigger is associated with the open file descriptor. To stop monitoring, the user only needs to close the file descriptor and the trigger is discarded. Patches 1-6 prepare the psi code for polling support. Patch 7 implements the adaptive polling logic, the pressure growth detection optimized for short intervals, and hooks up write() and poll() on the pressure files. The patches were developed in collaboration with Johannes Weiner. This patch (of 7): The psi monitoring patches will need to determine the same states as record_times(). To avoid calculating them twice, maintain a state mask that can be consulted cheaply. Do this in a separate patch to keep the churn in the main feature patch at a minimum. This adds 4-byte state_mask member into psi_group_cpu struct which results in its first cacheline-aligned part becoming 52 bytes long. Add explicit values to enumeration element counters that affect psi_group_cpu struct size. Link: http://lkml.kernel.org/r/20190124211518.244221-4-surenb@google.com Signed-off-by: Suren Baghdasaryan Acked-by: Johannes Weiner Cc: Dennis Zhou Cc: Ingo Molnar Cc: Jens Axboe Cc: Li Zefan Cc: Peter Zijlstra Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/psi_types.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/psi_types.h b/include/linux/psi_types.h index 2cf422db5d18..762c6bb16f3c 100644 --- a/include/linux/psi_types.h +++ b/include/linux/psi_types.h @@ -11,7 +11,7 @@ enum psi_task_count { NR_IOWAIT, NR_MEMSTALL, NR_RUNNING, - NR_PSI_TASK_COUNTS, + NR_PSI_TASK_COUNTS = 3, }; /* Task state bitmasks */ @@ -24,7 +24,7 @@ enum psi_res { PSI_IO, PSI_MEM, PSI_CPU, - NR_PSI_RESOURCES, + NR_PSI_RESOURCES = 3, }; /* @@ -41,7 +41,7 @@ enum psi_states { PSI_CPU_SOME, /* Only per-CPU, to weigh the CPU in the global average: */ PSI_NONIDLE, - NR_PSI_STATES, + NR_PSI_STATES = 6, }; struct psi_group_cpu { @@ -53,6 +53,9 @@ struct psi_group_cpu { /* States of the tasks belonging to this group */ unsigned int tasks[NR_PSI_TASK_COUNTS]; + /* Aggregate pressure state derived from the tasks */ + u32 state_mask; + /* Period time sampling buckets for each state of interest (ns) */ u32 times[NR_PSI_STATES]; -- cgit v1.2.3 From bcc78db64168eb6dede056fed2999f75f7ace309 Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Tue, 14 May 2019 15:41:02 -0700 Subject: psi: rename psi fields in preparation for psi trigger addition Rename psi_group structure member fields used for calculating psi totals and averages for clear distinction between them and for trigger-related fields that will be added by "psi: introduce psi monitor". [surenb@google.com: v6] Link: http://lkml.kernel.org/r/20190319235619.260832-4-surenb@google.com Link: http://lkml.kernel.org/r/20190124211518.244221-5-surenb@google.com Signed-off-by: Suren Baghdasaryan Acked-by: Johannes Weiner Cc: Dennis Zhou Cc: Ingo Molnar Cc: Jens Axboe Cc: Li Zefan Cc: Peter Zijlstra Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/psi_types.h | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/psi_types.h b/include/linux/psi_types.h index 762c6bb16f3c..4d1c1f67be18 100644 --- a/include/linux/psi_types.h +++ b/include/linux/psi_types.h @@ -69,17 +69,17 @@ struct psi_group_cpu { }; struct psi_group { - /* Protects data updated during an aggregation */ - struct mutex stat_lock; + /* Protects data used by the aggregator */ + struct mutex avgs_lock; /* Per-cpu task state & time tracking */ struct psi_group_cpu __percpu *pcpu; - /* Periodic aggregation state */ - u64 total_prev[NR_PSI_STATES - 1]; - u64 last_update; - u64 next_update; - struct delayed_work clock_work; + /* Running pressure averages */ + u64 avg_total[NR_PSI_STATES - 1]; + u64 avg_last_update; + u64 avg_next_update; + struct delayed_work avgs_work; /* Total stall times and sampled pressure averages */ u64 total[NR_PSI_STATES - 1]; -- cgit v1.2.3 From 8af0c18af1425fc70686c0fdcfc0072cd8431aa0 Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Tue, 14 May 2019 15:41:12 -0700 Subject: include/: refactor headers to allow kthread.h inclusion in psi_types.h kthread.h can't be included in psi_types.h because it creates a circular inclusion with kthread.h eventually including psi_types.h and complaining on kthread structures not being defined because they are defined further in the kthread.h. Resolve this by removing psi_types.h inclusion from the headers included from kthread.h. Link: http://lkml.kernel.org/r/20190319235619.260832-7-surenb@google.com Signed-off-by: Suren Baghdasaryan Acked-by: Johannes Weiner Cc: Dennis Zhou Cc: Ingo Molnar Cc: Jens Axboe Cc: Li Zefan Cc: Peter Zijlstra Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kthread.h | 3 ++- include/linux/sched.h | 1 - 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/kthread.h b/include/linux/kthread.h index 2c89e60bc752..0f9da966934e 100644 --- a/include/linux/kthread.h +++ b/include/linux/kthread.h @@ -4,7 +4,6 @@ /* Simple interface for creating and stopping kernel threads without mess. */ #include #include -#include __printf(4, 5) struct task_struct *kthread_create_on_node(int (*threadfn)(void *data), @@ -198,6 +197,8 @@ bool kthread_cancel_delayed_work_sync(struct kthread_delayed_work *work); void kthread_destroy_worker(struct kthread_worker *worker); +struct cgroup_subsys_state; + #ifdef CONFIG_BLK_CGROUP void kthread_associate_blkcg(struct cgroup_subsys_state *css); struct cgroup_subsys_state *kthread_blkcg(void); diff --git a/include/linux/sched.h b/include/linux/sched.h index a2cd15855bad..11837410690f 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -26,7 +26,6 @@ #include #include #include -#include #include #include #include -- cgit v1.2.3 From 0e94682b73bfa6c44c98af7a26771c9c08c055d5 Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Tue, 14 May 2019 15:41:15 -0700 Subject: psi: introduce psi monitor Psi monitor aims to provide a low-latency short-term pressure detection mechanism configurable by users. It allows users to monitor psi metrics growth and trigger events whenever a metric raises above user-defined threshold within user-defined time window. Time window and threshold are both expressed in usecs. Multiple psi resources with different thresholds and window sizes can be monitored concurrently. Psi monitors activate when system enters stall state for the monitored psi metric and deactivate upon exit from the stall state. While system is in the stall state psi signal growth is monitored at a rate of 10 times per tracking window. Min window size is 500ms, therefore the min monitoring interval is 50ms. Max window size is 10s with monitoring interval of 1s. When activated psi monitor stays active for at least the duration of one tracking window to avoid repeated activations/deactivations when psi signal is bouncing. Notifications to the users are rate-limited to one per tracking window. Link: http://lkml.kernel.org/r/20190319235619.260832-8-surenb@google.com Signed-off-by: Suren Baghdasaryan Signed-off-by: Johannes Weiner Cc: Dennis Zhou Cc: Ingo Molnar Cc: Jens Axboe Cc: Li Zefan Cc: Peter Zijlstra Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/psi.h | 8 +++++ include/linux/psi_types.h | 82 +++++++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 88 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/psi.h b/include/linux/psi.h index 7006008d5b72..af892c290116 100644 --- a/include/linux/psi.h +++ b/include/linux/psi.h @@ -4,6 +4,7 @@ #include #include #include +#include struct seq_file; struct css_set; @@ -26,6 +27,13 @@ int psi_show(struct seq_file *s, struct psi_group *group, enum psi_res res); int psi_cgroup_alloc(struct cgroup *cgrp); void psi_cgroup_free(struct cgroup *cgrp); void cgroup_move_task(struct task_struct *p, struct css_set *to); + +struct psi_trigger *psi_trigger_create(struct psi_group *group, + char *buf, size_t nbytes, enum psi_res res); +void psi_trigger_replace(void **trigger_ptr, struct psi_trigger *t); + +__poll_t psi_trigger_poll(void **trigger_ptr, struct file *file, + poll_table *wait); #endif #else /* CONFIG_PSI */ diff --git a/include/linux/psi_types.h b/include/linux/psi_types.h index 4d1c1f67be18..07aaf9b82241 100644 --- a/include/linux/psi_types.h +++ b/include/linux/psi_types.h @@ -1,8 +1,11 @@ #ifndef _LINUX_PSI_TYPES_H #define _LINUX_PSI_TYPES_H +#include #include #include +#include +#include #ifdef CONFIG_PSI @@ -44,6 +47,12 @@ enum psi_states { NR_PSI_STATES = 6, }; +enum psi_aggregators { + PSI_AVGS = 0, + PSI_POLL, + NR_PSI_AGGREGATORS, +}; + struct psi_group_cpu { /* 1st cacheline updated by the scheduler */ @@ -65,7 +74,55 @@ struct psi_group_cpu { /* 2nd cacheline updated by the aggregator */ /* Delta detection against the sampling buckets */ - u32 times_prev[NR_PSI_STATES] ____cacheline_aligned_in_smp; + u32 times_prev[NR_PSI_AGGREGATORS][NR_PSI_STATES] + ____cacheline_aligned_in_smp; +}; + +/* PSI growth tracking window */ +struct psi_window { + /* Window size in ns */ + u64 size; + + /* Start time of the current window in ns */ + u64 start_time; + + /* Value at the start of the window */ + u64 start_value; + + /* Value growth in the previous window */ + u64 prev_growth; +}; + +struct psi_trigger { + /* PSI state being monitored by the trigger */ + enum psi_states state; + + /* User-spacified threshold in ns */ + u64 threshold; + + /* List node inside triggers list */ + struct list_head node; + + /* Backpointer needed during trigger destruction */ + struct psi_group *group; + + /* Wait queue for polling */ + wait_queue_head_t event_wait; + + /* Pending event flag */ + int event; + + /* Tracking window */ + struct psi_window win; + + /* + * Time last event was generated. Used for rate-limiting + * events to one per window + */ + u64 last_event_time; + + /* Refcounting to prevent premature destruction */ + struct kref refcount; }; struct psi_group { @@ -79,11 +136,32 @@ struct psi_group { u64 avg_total[NR_PSI_STATES - 1]; u64 avg_last_update; u64 avg_next_update; + + /* Aggregator work control */ struct delayed_work avgs_work; /* Total stall times and sampled pressure averages */ - u64 total[NR_PSI_STATES - 1]; + u64 total[NR_PSI_AGGREGATORS][NR_PSI_STATES - 1]; unsigned long avg[NR_PSI_STATES - 1][3]; + + /* Monitor work control */ + atomic_t poll_scheduled; + struct kthread_worker __rcu *poll_kworker; + struct kthread_delayed_work poll_work; + + /* Protects data used by the monitor */ + struct mutex trigger_lock; + + /* Configured polling triggers */ + struct list_head triggers; + u32 nr_triggers[NR_PSI_STATES - 1]; + u32 poll_states; + u64 poll_min_period; + + /* Total stall times at the start of monitor activation */ + u64 polling_total[NR_PSI_STATES - 1]; + u64 polling_next_update; + u64 polling_until; }; #else /* CONFIG_PSI */ -- cgit v1.2.3 From df5ba5be7425e1df296d40c5f37a39d98ec666a2 Mon Sep 17 00:00:00 2001 From: Dan Schatzberg Date: Tue, 14 May 2019 15:41:18 -0700 Subject: kernel/sched/psi.c: expose pressure metrics on root cgroup Pressure metrics are already recorded and exposed in procfs for the entire system, but any tool which monitors cgroup pressure has to special case the root cgroup to read from procfs. This patch exposes the already recorded pressure metrics on the root cgroup. Link: http://lkml.kernel.org/r/20190510174938.3361741-1-dschatzberg@fb.com Signed-off-by: Dan Schatzberg Acked-by: Johannes Weiner Cc: Tejun Heo Cc: Li Zefan Cc: Ingo Molnar Cc: Peter Zijlstra Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/psi.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/psi.h b/include/linux/psi.h index af892c290116..7b3de7321219 100644 --- a/include/linux/psi.h +++ b/include/linux/psi.h @@ -12,6 +12,7 @@ struct css_set; #ifdef CONFIG_PSI extern struct static_key_false psi_disabled; +extern struct psi_group psi_system; void psi_init(void); -- cgit v1.2.3 From e900a918b0984ec8f2eb150b8477a47b75d17692 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 14 May 2019 15:41:28 -0700 Subject: mm: shuffle initial free memory to improve memory-side-cache utilization Patch series "mm: Randomize free memory", v10. This patch (of 3): Randomization of the page allocator improves the average utilization of a direct-mapped memory-side-cache. Memory side caching is a platform capability that Linux has been previously exposed to in HPC (high-performance computing) environments on specialty platforms. In that instance it was a smaller pool of high-bandwidth-memory relative to higher-capacity / lower-bandwidth DRAM. Now, this capability is going to be found on general purpose server platforms where DRAM is a cache in front of higher latency persistent memory [1]. Robert offered an explanation of the state of the art of Linux interactions with memory-side-caches [2], and I copy it here: It's been a problem in the HPC space: http://www.nersc.gov/research-and-development/knl-cache-mode-performance-coe/ A kernel module called zonesort is available to try to help: https://software.intel.com/en-us/articles/xeon-phi-software and this abandoned patch series proposed that for the kernel: https://lkml.kernel.org/r/20170823100205.17311-1-lukasz.daniluk@intel.com Dan's patch series doesn't attempt to ensure buffers won't conflict, but also reduces the chance that the buffers will. This will make performance more consistent, albeit slower than "optimal" (which is near impossible to attain in a general-purpose kernel). That's better than forcing users to deploy remedies like: "To eliminate this gradual degradation, we have added a Stream measurement to the Node Health Check that follows each job; nodes are rebooted whenever their measured memory bandwidth falls below 300 GB/s." A replacement for zonesort was merged upstream in commit cc9aec03e58f ("x86/numa_emulation: Introduce uniform split capability"). With this numa_emulation capability, memory can be split into cache sized ("near-memory" sized) numa nodes. A bind operation to such a node, and disabling workloads on other nodes, enables full cache performance. However, once the workload exceeds the cache size then cache conflicts are unavoidable. While HPC environments might be able to tolerate time-scheduling of cache sized workloads, for general purpose server platforms, the oversubscribed cache case will be the common case. The worst case scenario is that a server system owner benchmarks a workload at boot with an un-contended cache only to see that performance degrade over time, even below the average cache performance due to excessive conflicts. Randomization clips the peaks and fills in the valleys of cache utilization to yield steady average performance. Here are some performance impact details of the patches: 1/ An Intel internal synthetic memory bandwidth measurement tool, saw a 3X speedup in a contrived case that tries to force cache conflicts. The contrived cased used the numa_emulation capability to force an instance of the benchmark to be run in two of the near-memory sized numa nodes. If both instances were placed on the same emulated they would fit and cause zero conflicts. While on separate emulated nodes without randomization they underutilized the cache and conflicted unnecessarily due to the in-order allocation per node. 2/ A well known Java server application benchmark was run with a heap size that exceeded cache size by 3X. The cache conflict rate was 8% for the first run and degraded to 21% after page allocator aging. With randomization enabled the rate levelled out at 11%. 3/ A MongoDB workload did not observe measurable difference in cache-conflict rates, but the overall throughput dropped by 7% with randomization in one case. 4/ Mel Gorman ran his suite of performance workloads with randomization enabled on platforms without a memory-side-cache and saw a mix of some improvements and some losses [3]. While there is potentially significant improvement for applications that depend on low latency access across a wide working-set, the performance may be negligible to negative for other workloads. For this reason the shuffle capability defaults to off unless a direct-mapped memory-side-cache is detected. Even then, the page_alloc.shuffle=0 parameter can be specified to disable the randomization on those systems. Outside of memory-side-cache utilization concerns there is potentially security benefit from randomization. Some data exfiltration and return-oriented-programming attacks rely on the ability to infer the location of sensitive data objects. The kernel page allocator, especially early in system boot, has predictable first-in-first out behavior for physical pages. Pages are freed in physical address order when first onlined. Quoting Kees: "While we already have a base-address randomization (CONFIG_RANDOMIZE_MEMORY), attacks against the same hardware and memory layouts would certainly be using the predictability of allocation ordering (i.e. for attacks where the base address isn't important: only the relative positions between allocated memory). This is common in lots of heap-style attacks. They try to gain control over ordering by spraying allocations, etc. I'd really like to see this because it gives us something similar to CONFIG_SLAB_FREELIST_RANDOM but for the page allocator." While SLAB_FREELIST_RANDOM reduces the predictability of some local slab caches it leaves vast bulk of memory to be predictably in order allocated. However, it should be noted, the concrete security benefits are hard to quantify, and no known CVE is mitigated by this randomization. Introduce shuffle_free_memory(), and its helper shuffle_zone(), to perform a Fisher-Yates shuffle of the page allocator 'free_area' lists when they are initially populated with free memory at boot and at hotplug time. Do this based on either the presence of a page_alloc.shuffle=Y command line parameter, or autodetection of a memory-side-cache (to be added in a follow-on patch). The shuffling is done in terms of CONFIG_SHUFFLE_PAGE_ORDER sized free pages where the default CONFIG_SHUFFLE_PAGE_ORDER is MAX_ORDER-1 i.e. 10, 4MB this trades off randomization granularity for time spent shuffling. MAX_ORDER-1 was chosen to be minimally invasive to the page allocator while still showing memory-side cache behavior improvements, and the expectation that the security implications of finer granularity randomization is mitigated by CONFIG_SLAB_FREELIST_RANDOM. The performance impact of the shuffling appears to be in the noise compared to other memory initialization work. This initial randomization can be undone over time so a follow-on patch is introduced to inject entropy on page free decisions. It is reasonable to ask if the page free entropy is sufficient, but it is not enough due to the in-order initial freeing of pages. At the start of that process putting page1 in front or behind page0 still keeps them close together, page2 is still near page1 and has a high chance of being adjacent. As more pages are added ordering diversity improves, but there is still high page locality for the low address pages and this leads to no significant impact to the cache conflict rate. [1]: https://itpeernetwork.intel.com/intel-optane-dc-persistent-memory-operating-modes/ [2]: https://lkml.kernel.org/r/AT5PR8401MB1169D656C8B5E121752FC0F8AB120@AT5PR8401MB1169.NAMPRD84.PROD.OUTLOOK.COM [3]: https://lkml.org/lkml/2018/10/12/309 [dan.j.williams@intel.com: fix shuffle enable] Link: http://lkml.kernel.org/r/154943713038.3858443.4125180191382062871.stgit@dwillia2-desk3.amr.corp.intel.com [cai@lca.pw: fix SHUFFLE_PAGE_ALLOCATOR help texts] Link: http://lkml.kernel.org/r/20190425201300.75650-1-cai@lca.pw Link: http://lkml.kernel.org/r/154899811738.3165233.12325692939590944259.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams Signed-off-by: Qian Cai Reviewed-by: Kees Cook Acked-by: Michal Hocko Cc: Dave Hansen Cc: Keith Busch Cc: Robert Elliott Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/list.h | 17 +++++++++++++++++ include/linux/mmzone.h | 1 + 2 files changed, 18 insertions(+) (limited to 'include/linux') diff --git a/include/linux/list.h b/include/linux/list.h index 9e9a6403dbe4..d3b4db895340 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -150,6 +150,23 @@ static inline void list_replace_init(struct list_head *old, INIT_LIST_HEAD(old); } +/** + * list_swap - replace entry1 with entry2 and re-add entry1 at entry2's position + * @entry1: the location to place entry2 + * @entry2: the location to place entry1 + */ +static inline void list_swap(struct list_head *entry1, + struct list_head *entry2) +{ + struct list_head *pos = entry2->prev; + + list_del(entry2); + list_replace(entry1, entry2); + if (pos == entry1) + pos = entry2; + list_add(entry1, pos); +} + /** * list_del_init - deletes entry from list and reinitialize it. * @entry: the element to delete from the list. diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 5a4aedc160bd..1fb5a04530aa 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -1271,6 +1271,7 @@ void sparse_init(void); #else #define sparse_init() do {} while (0) #define sparse_index_init(_sec, _nid) do {} while (0) +#define pfn_present pfn_valid #endif /* CONFIG_SPARSEMEM */ /* -- cgit v1.2.3 From b03641af680959df57c275a80ff0dc116627c7ae Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 14 May 2019 15:41:32 -0700 Subject: mm: move buddy list manipulations into helpers In preparation for runtime randomization of the zone lists, take all (well, most of) the list_*() functions in the buddy allocator and put them in helper functions. Provide a common control point for injecting additional behavior when freeing pages. [dan.j.williams@intel.com: fix buddy list helpers] Link: http://lkml.kernel.org/r/155033679702.1773410.13041474192173212653.stgit@dwillia2-desk3.amr.corp.intel.com [vbabka@suse.cz: remove del_page_from_free_area() migratetype parameter] Link: http://lkml.kernel.org/r/4672701b-6775-6efd-0797-b6242591419e@suse.cz Link: http://lkml.kernel.org/r/154899812264.3165233.5219320056406926223.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams Signed-off-by: Vlastimil Babka Tested-by: Tetsuo Handa Acked-by: Michal Hocko Cc: Vlastimil Babka Cc: Dave Hansen Cc: Kees Cook Cc: Keith Busch Cc: Robert Elliott Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 3 --- include/linux/mm_types.h | 3 +++ include/linux/mmzone.h | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 49 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mm.h b/include/linux/mm.h index 912614fbbef3..0e8834ac32b7 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -536,9 +536,6 @@ static inline void vma_set_anonymous(struct vm_area_struct *vma) struct mmu_gather; struct inode; -#define page_private(page) ((page)->private) -#define set_page_private(page, v) ((page)->private = (v)) - #if !defined(__HAVE_ARCH_PTE_DEVMAP) || !defined(CONFIG_TRANSPARENT_HUGEPAGE) static inline int pmd_devmap(pmd_t pmd) { diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index e1f42a07d8f0..8ec38b11b361 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -220,6 +220,9 @@ struct page { #define PAGE_FRAG_CACHE_MAX_SIZE __ALIGN_MASK(32768, ~PAGE_MASK) #define PAGE_FRAG_CACHE_MAX_ORDER get_order(PAGE_FRAG_CACHE_MAX_SIZE) +#define page_private(page) ((page)->private) +#define set_page_private(page, v) ((page)->private = (v)) + struct page_frag_cache { void * va; #if (PAGE_SIZE < PAGE_FRAG_CACHE_MAX_SIZE) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 1fb5a04530aa..acd6f9cb01bd 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -18,6 +18,8 @@ #include #include #include +#include +#include #include /* Free memory management - zoned buddy allocator. */ @@ -98,6 +100,50 @@ struct free_area { unsigned long nr_free; }; +/* Used for pages not on another list */ +static inline void add_to_free_area(struct page *page, struct free_area *area, + int migratetype) +{ + list_add(&page->lru, &area->free_list[migratetype]); + area->nr_free++; +} + +/* Used for pages not on another list */ +static inline void add_to_free_area_tail(struct page *page, struct free_area *area, + int migratetype) +{ + list_add_tail(&page->lru, &area->free_list[migratetype]); + area->nr_free++; +} + +/* Used for pages which are on another list */ +static inline void move_to_free_area(struct page *page, struct free_area *area, + int migratetype) +{ + list_move(&page->lru, &area->free_list[migratetype]); +} + +static inline struct page *get_page_from_free_area(struct free_area *area, + int migratetype) +{ + return list_first_entry_or_null(&area->free_list[migratetype], + struct page, lru); +} + +static inline void del_page_from_free_area(struct page *page, + struct free_area *area) +{ + list_del(&page->lru); + __ClearPageBuddy(page); + set_page_private(page, 0); + area->nr_free--; +} + +static inline bool free_area_empty(struct free_area *area, int migratetype) +{ + return list_empty(&area->free_list[migratetype]); +} + struct pglist_data; /* -- cgit v1.2.3 From 97500a4a54876d3d6d2d1b8419223eb4e69b32d8 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 14 May 2019 15:41:35 -0700 Subject: mm: maintain randomization of page free lists When freeing a page with an order >= shuffle_page_order randomly select the front or back of the list for insertion. While the mm tries to defragment physical pages into huge pages this can tend to make the page allocator more predictable over time. Inject the front-back randomness to preserve the initial randomness established by shuffle_free_memory() when the kernel was booted. The overhead of this manipulation is constrained by only being applied for MAX_ORDER sized pages by default. [akpm@linux-foundation.org: coding-style fixes] Link: http://lkml.kernel.org/r/154899812788.3165233.9066631950746578517.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams Reviewed-by: Kees Cook Cc: Michal Hocko Cc: Dave Hansen Cc: Keith Busch Cc: Robert Elliott Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmzone.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index acd6f9cb01bd..70394cabaf4e 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -116,6 +116,18 @@ static inline void add_to_free_area_tail(struct page *page, struct free_area *ar area->nr_free++; } +#ifdef CONFIG_SHUFFLE_PAGE_ALLOCATOR +/* Used to preserve page allocation order entropy */ +void add_to_free_area_random(struct page *page, struct free_area *area, + int migratetype); +#else +static inline void add_to_free_area_random(struct page *page, + struct free_area *area, int migratetype) +{ + add_to_free_area(page, area, migratetype); +} +#endif + /* Used for pages which are on another list */ static inline void move_to_free_area(struct page *page, struct free_area *area, int migratetype) -- cgit v1.2.3 From ad312f95d41c9de19313c51e388c4984451c010f Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 14 May 2019 15:41:42 -0700 Subject: fs/select: avoid clang stack usage warning The select() implementation is carefully tuned to put a sensible amount of data on the stack for holding a copy of the user space fd_set, but not too large to risk overflowing the kernel stack. When building a 32-bit kernel with clang, we need a little more space than with gcc, which often triggers a warning: fs/select.c:619:5: error: stack frame size of 1048 bytes in function 'core_sys_select' [-Werror,-Wframe-larger-than=] int core_sys_select(int n, fd_set __user *inp, fd_set __user *outp, I experimentally found that for 32-bit ARM, reducing the maximum stack usage by 64 bytes keeps us reliably under the warning limit again. Link: http://lkml.kernel.org/r/20190307090146.1874906-1-arnd@arndb.de Signed-off-by: Arnd Bergmann Reviewed-by: Andi Kleen Cc: Nick Desaulniers Cc: Alexander Viro Cc: Christoph Hellwig Cc: Eric Dumazet Cc: "Darrick J. Wong" Cc: Greg Kroah-Hartman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/poll.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/poll.h b/include/linux/poll.h index 7e0fdcf905d2..1cdc32b1f1b0 100644 --- a/include/linux/poll.h +++ b/include/linux/poll.h @@ -16,7 +16,11 @@ extern struct ctl_table epoll_table[]; /* for sysctl */ /* ~832 bytes of stack space used max in sys_select/sys_poll before allocating additional memory. */ +#ifdef __clang__ +#define MAX_STACK_ALLOC 768 +#else #define MAX_STACK_ALLOC 832 +#endif #define FRONTEND_STACK_ALLOC 256 #define SELECT_STACK_ALLOC FRONTEND_STACK_ALLOC #define POLL_STACK_ALLOC FRONTEND_STACK_ALLOC -- cgit v1.2.3 From 687a3e4d8e6129f064711291f1564d95472dba3e Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 14 May 2019 15:41:45 -0700 Subject: treewide: remove SPDX "WITH Linux-syscall-note" from kernel-space headers The "WITH Linux-syscall-note" should be added to headers exported to the user-space. Some kernel-space headers have "WITH Linux-syscall-note", which seems a mistake. [1] arch/x86/include/asm/hyperv-tlfs.h Commit 5a4858032217 ("x86/hyper-v: move hyperv.h out of uapi") moved this file out of uapi, but missed to update the SPDX License tag. [2] include/asm-generic/shmparam.h Commit 76ce2a80a28e ("Rename include/{uapi => }/asm-generic/shmparam.h really") moved this file out of uapi, but missed to update the SPDX License tag. [3] include/linux/qcom-geni-se.h Commit eddac5af0654 ("soc: qcom: Add GENI based QUP Wrapper driver") added this file, but I do not see a good reason why its license tag must include "WITH Linux-syscall-note". Link: http://lkml.kernel.org/r/1554196104-3522-1-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/qcom-geni-se.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/qcom-geni-se.h b/include/linux/qcom-geni-se.h index 3bcd67fd5548..dd464943f717 100644 --- a/include/linux/qcom-geni-se.h +++ b/include/linux/qcom-geni-se.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. */ -- cgit v1.2.3 From 9012d011660ea5cf2a623e1de207a2bc0ca6936d Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 14 May 2019 15:42:25 -0700 Subject: compiler: allow all arches to enable CONFIG_OPTIMIZE_INLINING Commit 60a3cdd06394 ("x86: add optimized inlining") introduced CONFIG_OPTIMIZE_INLINING, but it has been available only for x86. The idea is obviously arch-agnostic. This commit moves the config entry from arch/x86/Kconfig.debug to lib/Kconfig.debug so that all architectures can benefit from it. This can make a huge difference in kernel image size especially when CONFIG_OPTIMIZE_FOR_SIZE is enabled. For example, I got 3.5% smaller arm64 kernel for v5.1-rc1. dec file 18983424 arch/arm64/boot/Image.before 18321920 arch/arm64/boot/Image.after This also slightly improves the "Kernel hacking" Kconfig menu as e61aca5158a8 ("Merge branch 'kconfig-diet' from Dave Hansen') suggested; this config option would be a good fit in the "compiler option" menu. Link: http://lkml.kernel.org/r/20190423034959.13525-12-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada Acked-by: Borislav Petkov Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: Boris Brezillon Cc: Brian Norris Cc: Christophe Leroy Cc: David Woodhouse Cc: Heiko Carstens Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Marek Vasut Cc: Mark Rutland Cc: Mathieu Malaterre Cc: Miquel Raynal Cc: Paul Mackerras Cc: Ralf Baechle Cc: Richard Weinberger Cc: Russell King Cc: Stefan Agner Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/compiler_types.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h index ba814f18cb4c..19e58b9138a0 100644 --- a/include/linux/compiler_types.h +++ b/include/linux/compiler_types.h @@ -140,8 +140,7 @@ struct ftrace_likely_data { * Do not use __always_inline here, since currently it expands to inline again * (which would break users of __always_inline). */ -#if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \ - !defined(CONFIG_OPTIMIZE_INLINING) +#if !defined(CONFIG_OPTIMIZE_INLINING) #define inline inline __attribute__((__always_inline__)) __gnu_inline \ __maybe_unused notrace #else -- cgit v1.2.3 From e02c9b0d65a7493180db45320f82482c6ba8ea57 Mon Sep 17 00:00:00 2001 From: Lin Feng Date: Tue, 14 May 2019 15:42:34 -0700 Subject: kernel/latencytop.c: rename clear_all_latency_tracing to clear_tsk_latency_tracing The name clear_all_latency_tracing is misleading, in fact which only clear per task's latency_record[], and we do have another function named clear_global_latency_tracing which clear the global latency_record[] buffer. Link: http://lkml.kernel.org/r/20190226114602.16902-1-linf@wangsu.com Signed-off-by: Lin Feng Cc: Alexey Dobriyan Cc: Fabian Frederick Cc: Arjan van de Ven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/latencytop.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/latencytop.h b/include/linux/latencytop.h index 7c560e0dc8f4..9022f0c2e2e4 100644 --- a/include/linux/latencytop.h +++ b/include/linux/latencytop.h @@ -36,7 +36,7 @@ account_scheduler_latency(struct task_struct *task, int usecs, int inter) __account_scheduler_latency(task, usecs, inter); } -void clear_all_latency_tracing(struct task_struct *p); +void clear_tsk_latency_tracing(struct task_struct *p); extern int sysctl_latencytop(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); @@ -48,7 +48,7 @@ account_scheduler_latency(struct task_struct *task, int usecs, int inter) { } -static inline void clear_all_latency_tracing(struct task_struct *p) +static inline void clear_tsk_latency_tracing(struct task_struct *p) { } -- cgit v1.2.3 From 8e18faeac3e4d4b3ff3d705cd46d0fcb710b09d0 Mon Sep 17 00:00:00 2001 From: Davidlohr Bueso Date: Tue, 14 May 2019 15:42:46 -0700 Subject: lib/plist: rename DEBUG_PI_LIST to DEBUG_PLIST This is a lot more appropriate than PI_LIST, which in the kernel one would assume that it has to do with priority-inheritance; which is not -- furthermore futexes make use of plists so this can be even more confusing, albeit the debug nature of the config option. Link: http://lkml.kernel.org/r/20190317185434.1626-1-dave@stgolabs.net Signed-off-by: Davidlohr Bueso Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/plist.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/plist.h b/include/linux/plist.h index 97883604a3c5..9365df5a823f 100644 --- a/include/linux/plist.h +++ b/include/linux/plist.h @@ -231,7 +231,7 @@ static inline int plist_node_empty(const struct plist_node *node) * @type: the type of the struct this is embedded in * @member: the name of the list_head within the struct */ -#ifdef CONFIG_DEBUG_PI_LIST +#ifdef CONFIG_DEBUG_PLIST # define plist_first_entry(head, type, member) \ ({ \ WARN_ON(plist_head_empty(head)); \ @@ -248,7 +248,7 @@ static inline int plist_node_empty(const struct plist_node *node) * @type: the type of the struct this is embedded in * @member: the name of the list_head within the struct */ -#ifdef CONFIG_DEBUG_PI_LIST +#ifdef CONFIG_DEBUG_PLIST # define plist_last_entry(head, type, member) \ ({ \ WARN_ON(plist_head_empty(head)); \ -- cgit v1.2.3 From 043b3f7b6388fca6be86ca82979f66c5723a0d10 Mon Sep 17 00:00:00 2001 From: George Spelvin Date: Tue, 14 May 2019 15:42:58 -0700 Subject: lib/list_sort: simplify and remove MAX_LIST_LENGTH_BITS Rather than a fixed-size array of pending sorted runs, use the ->prev links to keep track of things. This reduces stack usage, eliminates some ugly overflow handling, and reduces the code size. Also: * merge() no longer needs to handle NULL inputs, so simplify. * The same applies to merge_and_restore_back_links(), which is renamed to the less ponderous merge_final(). (It's a static helper function, so we don't need a super-descriptive name; comments will do.) * Document the actual return value requirements on the (*cmp)() function; some callers are already using this feature. x86-64 code size 1086 -> 739 bytes (-347) (Yes, I see checkpatch complaining about no space after comma in "__attribute__((nonnull(2,3,4,5)))". Checkpatch is wrong.) Feedback from Rasmus Villemoes, Andy Shevchenko and Geert Uytterhoeven. [akpm@linux-foundation.org: remove __pure usage due to mysterious warning] Link: http://lkml.kernel.org/r/f63c410e0ff76009c9b58e01027e751ff7fdb749.1552704200.git.lkml@sdf.org Signed-off-by: George Spelvin Acked-by: Andrey Abramov Acked-by: Rasmus Villemoes Reviewed-by: Andy Shevchenko Cc: Geert Uytterhoeven Cc: Daniel Wagner Cc: Dave Chinner Cc: Don Mullis Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/list_sort.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/list_sort.h b/include/linux/list_sort.h index ba79956e848d..20f178c24e9d 100644 --- a/include/linux/list_sort.h +++ b/include/linux/list_sort.h @@ -6,6 +6,7 @@ struct list_head; +__attribute__((nonnull(2,3))) void list_sort(void *priv, struct list_head *head, int (*cmp)(void *priv, struct list_head *a, struct list_head *b)); -- cgit v1.2.3 From 9f6158946987a5ce3f16da097d18f240a89db417 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 14 May 2019 15:43:08 -0700 Subject: lib/math: move int_pow() from pwm_bl.c for wider use The integer exponentiation is used in few places and might be used in the future by other call sites. Move it to wider use. Link: http://lkml.kernel.org/r/20190323172531.80025-2-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko Cc: Daniel Thompson Cc: Lee Jones Cc: Ray Jui Cc: Thierry Reding Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kernel.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index a3b59d143afb..74b1ee9027f5 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -484,6 +484,7 @@ extern int __kernel_text_address(unsigned long addr); extern int kernel_text_address(unsigned long addr); extern int func_ptr_is_kernel_text(void *ptr); +u64 int_pow(u64 base, unsigned int exp); unsigned long int_sqrt(unsigned long); #if BITS_PER_LONG < 64 -- cgit v1.2.3 From ef4d6f6b275c498f8e5626c99dbeefdc5027f843 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Tue, 14 May 2019 15:43:27 -0700 Subject: include/linux/bitops.h: sanitize rotate primitives The ror32 implementation (word >> shift) | (word << (32 - shift) has undefined behaviour if shift is outside the [1, 31] range. Similarly for the 64 bit variants. Most callers pass a compile-time constant (naturally in that range), but there's an UBSAN report that these may actually be called with a shift count of 0. Instead of special-casing that, we can make them DTRT for all values of shift while also avoiding UB. For some reason, this was already partly done for rol32 (which was well-defined for [0, 31]). gcc 8 recognizes these patterns as rotates, so for example __u32 rol32(__u32 word, unsigned int shift) { return (word << (shift & 31)) | (word >> ((-shift) & 31)); } compiles to 0000000000000020 : 20: 89 f8 mov %edi,%eax 22: 89 f1 mov %esi,%ecx 24: d3 c0 rol %cl,%eax 26: c3 retq Older compilers unfortunately do not do as well, but this only affects the small minority of users that don't pass constants. Due to integer promotions, ro[lr]8 were already well-defined for shifts in [0, 8], and ro[lr]16 were mostly well-defined for shifts in [0, 16] (only mostly - u16 gets promoted to _signed_ int, so if bit 15 is set, word << 16 is undefined). For consistency, update those as well. Link: http://lkml.kernel.org/r/20190410211906.2190-1-linux@rasmusvillemoes.dk Signed-off-by: Rasmus Villemoes Reported-by: Ido Schimmel Tested-by: Ido Schimmel Reviewed-by: Will Deacon Cc: Vadim Pasternak Cc: Andrey Ryabinin Cc: Jacek Anaszewski Cc: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bitops.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bitops.h b/include/linux/bitops.h index 602af23b98c7..cf074bce3eb3 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -60,7 +60,7 @@ static __always_inline unsigned long hweight_long(unsigned long w) */ static inline __u64 rol64(__u64 word, unsigned int shift) { - return (word << shift) | (word >> (64 - shift)); + return (word << (shift & 63)) | (word >> ((-shift) & 63)); } /** @@ -70,7 +70,7 @@ static inline __u64 rol64(__u64 word, unsigned int shift) */ static inline __u64 ror64(__u64 word, unsigned int shift) { - return (word >> shift) | (word << (64 - shift)); + return (word >> (shift & 63)) | (word << ((-shift) & 63)); } /** @@ -80,7 +80,7 @@ static inline __u64 ror64(__u64 word, unsigned int shift) */ static inline __u32 rol32(__u32 word, unsigned int shift) { - return (word << shift) | (word >> ((-shift) & 31)); + return (word << (shift & 31)) | (word >> ((-shift) & 31)); } /** @@ -90,7 +90,7 @@ static inline __u32 rol32(__u32 word, unsigned int shift) */ static inline __u32 ror32(__u32 word, unsigned int shift) { - return (word >> shift) | (word << (32 - shift)); + return (word >> (shift & 31)) | (word << ((-shift) & 31)); } /** @@ -100,7 +100,7 @@ static inline __u32 ror32(__u32 word, unsigned int shift) */ static inline __u16 rol16(__u16 word, unsigned int shift) { - return (word << shift) | (word >> (16 - shift)); + return (word << (shift & 15)) | (word >> ((-shift) & 15)); } /** @@ -110,7 +110,7 @@ static inline __u16 rol16(__u16 word, unsigned int shift) */ static inline __u16 ror16(__u16 word, unsigned int shift) { - return (word >> shift) | (word << (16 - shift)); + return (word >> (shift & 15)) | (word << ((-shift) & 15)); } /** @@ -120,7 +120,7 @@ static inline __u16 ror16(__u16 word, unsigned int shift) */ static inline __u8 rol8(__u8 word, unsigned int shift) { - return (word << shift) | (word >> (8 - shift)); + return (word << (shift & 7)) | (word >> ((-shift) & 7)); } /** @@ -130,7 +130,7 @@ static inline __u8 rol8(__u8 word, unsigned int shift) */ static inline __u8 ror8(__u8 word, unsigned int shift) { - return (word >> shift) | (word << (8 - shift)); + return (word >> (shift & 7)) | (word << ((-shift) & 7)); } /** -- cgit v1.2.3 From a6231d1993367cf48a9c5f1adc295a5a8b1c5731 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Tue, 14 May 2019 15:44:40 -0700 Subject: exec: move struct linux_binprm::buf struct linux_binprm::buf is the first field and it is exactly 128 bytes in size. It means that on x86_64 all accesses to other fields will go though [r64 + disp32] addressing mode which is 3 bytes bloatier than [r64 + disp8] addressing mode. Given that accesses to other fields outnumber accesses to ->buf, move it down. Space savings (x86_64 defconfig): more on distro configs because LSMs actively dereference "bprm" but do not care about first 128 bytes of the executable itself. add/remove: 0/0 grow/shrink: 0/24 up/down: 0/-492 (-492) Function old new delta selinux_bprm_committing_creds 552 549 -3 finalize_exec 94 91 -3 __audit_log_bprm_fcaps 283 280 -3 __audit_bprm 39 36 -3 perf_trace_sched_process_exec 347 341 -6 install_exec_creds 105 99 -6 cap_bprm_set_creds.cold 60 54 -6 would_dump 137 128 -9 load_script 637 628 -9 bprm_change_interp 61 52 -9 trace_event_raw_event_sched_process_exec 260 250 -10 search_binary_handler 255 240 -15 remove_arg_zero 295 277 -18 free_bprm 119 101 -18 prepare_binprm 379 360 -19 setup_new_exec 336 315 -21 flush_old_exec 1638 1617 -21 copy_strings.isra 746 724 -22 setup_arg_pages 559 530 -29 load_misc_binary 1151 1118 -33 selinux_bprm_set_creds 792 753 -39 load_elf_binary 11111 11072 -39 cap_bprm_set_creds 1496 1454 -42 __do_execve_file.isra 2395 2286 -109 Link: http://lkml.kernel.org/r/20190421165025.GA26843@avx2 Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/binfmts.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h index 688ab0de7810..b40fc633f3be 100644 --- a/include/linux/binfmts.h +++ b/include/linux/binfmts.h @@ -15,7 +15,6 @@ struct filename; * This structure is used to hold the arguments that are used when loading binaries. */ struct linux_binprm { - char buf[BINPRM_BUF_SIZE]; #ifdef CONFIG_MMU struct vm_area_struct *vma; unsigned long vma_pages; @@ -64,6 +63,8 @@ struct linux_binprm { unsigned long loader, exec; struct rlimit rlim_stack; /* Saved RLIMIT_STACK used during exec. */ + + char buf[BINPRM_BUF_SIZE]; } __randomize_layout; #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0 -- cgit v1.2.3 From 3713a4e1fdb8da86f96a3e770b08e278d97529b4 Mon Sep 17 00:00:00 2001 From: Yury Norov Date: Tue, 14 May 2019 15:44:46 -0700 Subject: include/linux/cpumask.h: fix double string traverse in cpumask_parse cpumask_parse() finds first occurrence of either or strchr() and strlen(). We can do it better with a single call of strchrnul(). [akpm@linux-foundation.org: remove unneeded cast] Link: http://lkml.kernel.org/r/20190409204208.12190-1-ynorov@marvell.com Signed-off-by: Yury Norov Acked-by: Rasmus Villemoes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/cpumask.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 147bdec42215..21755471b1c3 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -633,8 +633,7 @@ static inline int cpumask_parselist_user(const char __user *buf, int len, */ static inline int cpumask_parse(const char *buf, struct cpumask *dstp) { - char *nl = strchr(buf, '\n'); - unsigned int len = nl ? (unsigned int)(nl - buf) : strlen(buf); + unsigned int len = strchrnul(buf, '\n') - buf; return bitmap_parse(buf, len, cpumask_bits(dstp), nr_cpumask_bits); } -- cgit v1.2.3 From c39ea0b9dd24bf1bf2baa5cdbfa1905f3065347b Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Tue, 14 May 2019 15:45:34 -0700 Subject: panic: avoid the extra noise dmesg When kernel panic happens, it will first print the panic call stack, then the ending msg like: [ 35.743249] ---[ end Kernel panic - not syncing: Fatal exception [ 35.749975] ------------[ cut here ]------------ The above message are very useful for debugging. But if system is configured to not reboot on panic, say the "panic_timeout" parameter equals 0, it will likely print out many noisy message like WARN() call stack for each and every CPU except the panic one, messages like below: WARNING: CPU: 1 PID: 280 at kernel/sched/core.c:1198 set_task_cpu+0x183/0x190 Call Trace: try_to_wake_up default_wake_function autoremove_wake_function __wake_up_common __wake_up_common_lock __wake_up wake_up_klogd_work_func irq_work_run_list irq_work_tick update_process_times tick_sched_timer __hrtimer_run_queues hrtimer_interrupt smp_apic_timer_interrupt apic_timer_interrupt For people working in console mode, the screen will first show the panic call stack, but immediately overridden by these noisy extra messages, which makes debugging much more difficult, as the original context gets lost on screen. Also these noisy messages will confuse some users, as I have seen many bug reporters posted the noisy message into bugzilla, instead of the real panic call stack and context. Adding a flag "suppress_printk" which gets set in panic() to avoid those noisy messages, without changing current kernel behavior that both panic blinking and sysrq magic key can work as is, suggested by Petr Mladek. To verify this, make sure kernel is not configured to reboot on panic and in console # echo c > /proc/sysrq-trigger to see if console only prints out the panic call stack. Link: http://lkml.kernel.org/r/1551430186-24169-1-git-send-email-feng.tang@intel.com Signed-off-by: Feng Tang Suggested-by: Petr Mladek Reviewed-by: Petr Mladek Acked-by: Steven Rostedt (VMware) Acked-by: Sergey Senozhatsky Cc: Thomas Gleixner Cc: Kees Cook Cc: Borislav Petkov Cc: Andi Kleen Cc: Peter Zijlstra Cc: Greg Kroah-Hartman Cc: Jiri Slaby Cc: Sasha Levin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/printk.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/printk.h b/include/linux/printk.h index 84ea4d094af3..cefd374c47b1 100644 --- a/include/linux/printk.h +++ b/include/linux/printk.h @@ -82,6 +82,8 @@ static inline void console_verbose(void) extern char devkmsg_log_str[]; struct ctl_table; +extern int suppress_printk; + struct va_format { const char *fmt; va_list *va; -- cgit v1.2.3 From b287a25a7148a89d977c819c1f7d6584f875b682 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Tue, 14 May 2019 15:45:37 -0700 Subject: panic/reboot: allow specifying reboot_mode for panic only Allow specifying reboot_mode for panic only. This is needed on systems where ramoops is used to store panic logs, and user wants to use warm reset to preserve those, while still having cold reset on normal reboots. Link: http://lkml.kernel.org/r/20190322004735.27702-1-aaro.koskinen@iki.fi Signed-off-by: Aaro Koskinen Reviewed-by: Kees Cook Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/reboot.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/reboot.h b/include/linux/reboot.h index e63799a6e895..3734cd8f38a8 100644 --- a/include/linux/reboot.h +++ b/include/linux/reboot.h @@ -14,6 +14,7 @@ struct device; #define SYS_POWER_OFF 0x0003 /* Notify of system power off */ enum reboot_mode { + REBOOT_UNDEFINED = -1, REBOOT_COLD = 0, REBOOT_WARM, REBOOT_HARD, @@ -21,6 +22,7 @@ enum reboot_mode { REBOOT_GPIO, }; extern enum reboot_mode reboot_mode; +extern enum reboot_mode panic_reboot_mode; enum reboot_type { BOOT_TRIPLE = 't', -- cgit v1.2.3 From 4461d65176b408d6d7adefa41a95472a18a90a53 Mon Sep 17 00:00:00 2001 From: Tom Burkart Date: Tue, 14 May 2019 15:45:40 -0700 Subject: pps: descriptor-based gpio This patch changes the GPIO access for the pps-gpio driver from the integer based API to the descriptor based API. The integer based API is considered deprecated and the descriptor based API is the preferred way to access GPIOs as per Documentation/driver-api/gpio/intro.rst No changes are made to userspace interfaces. Link: http://lkml.kernel.org/r/20190324043305.6627-2-tom@aussec.com Signed-off-by: Tom Burkart Acked-by: Rodolfo Giometti Reviewed-by: Philipp Zabel Cc: Lukas Senger Cc: Rob Herring Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pps-gpio.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pps-gpio.h b/include/linux/pps-gpio.h index 56f35dd3d01d..f028d2cda6f5 100644 --- a/include/linux/pps-gpio.h +++ b/include/linux/pps-gpio.h @@ -23,10 +23,9 @@ #define _PPS_GPIO_H struct pps_gpio_platform_data { + struct gpio_desc *gpio_pin; bool assert_falling_edge; bool capture_clear; - unsigned int gpio_pin; - const char *gpio_label; }; #endif /* _PPS_GPIO_H */ -- cgit v1.2.3 From 4c69add45fec995ce23b21dc90be20f1efd8cdad Mon Sep 17 00:00:00 2001 From: Tom Burkart Date: Tue, 14 May 2019 15:45:46 -0700 Subject: pps: pps-gpio PPS ECHO implementation This patch implements the PPS ECHO functionality for pps-gpio, that sysfs claims is available already. Configuration is done via device tree bindings. No changes are made to userspace interfaces. This patch was originally written by Lukas Senger as part of a masters thesis project and modified for inclusion into the linux kernel by Tom Burkart. Link: http://lkml.kernel.org/r/20190324043305.6627-4-tom@aussec.com Signed-off-by: Tom Burkart Acked-by: Rodolfo Giometti Signed-off-by: Lukas Senger Cc: Philipp Zabel Cc: Rob Herring Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pps-gpio.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pps-gpio.h b/include/linux/pps-gpio.h index f028d2cda6f5..44171e6b7197 100644 --- a/include/linux/pps-gpio.h +++ b/include/linux/pps-gpio.h @@ -24,8 +24,10 @@ struct pps_gpio_platform_data { struct gpio_desc *gpio_pin; + struct gpio_desc *echo_pin; bool assert_falling_edge; bool capture_clear; + unsigned int echo_active_ms; }; #endif /* _PPS_GPIO_H */ -- cgit v1.2.3 From 3278a2c20cb302d27e6f6ee45a3f57361176e426 Mon Sep 17 00:00:00 2001 From: Manfred Spraul Date: Tue, 14 May 2019 15:46:33 -0700 Subject: ipc: conserve sequence numbers in ipcmni_extend mode Rewrite, based on the patch from Waiman Long: The mixing in of a sequence number into the IPC IDs is probably to avoid ID reuse in userspace as much as possible. With ipcmni_extend mode, the number of usable sequence numbers is greatly reduced leading to higher chance of ID reuse. To address this issue, we need to conserve the sequence number space as much as possible. Right now, the sequence number is incremented for every new ID created. In reality, we only need to increment the sequence number when new allocated ID is not greater than the last one allocated. It is in such case that the new ID may collide with an existing one. This is being done irrespective of the ipcmni mode. In order to avoid any races, the index is first allocated and then the pointer is replaced. Changes compared to the initial patch: - Handle failures from idr_alloc(). - Avoid that concurrent operations can see the wrong sequence number. (This is achieved by using idr_replace()). - IPCMNI_SEQ_SHIFT is not a constant, thus renamed to ipcmni_seq_shift(). - IPCMNI_SEQ_MAX is not a constant, thus renamed to ipcmni_seq_max(). Link: http://lkml.kernel.org/r/20190329204930.21620-2-longman@redhat.com Signed-off-by: Manfred Spraul Signed-off-by: Waiman Long Suggested-by: Matthew Wilcox Acked-by: Waiman Long Cc: Al Viro Cc: Davidlohr Bueso Cc: "Eric W . Biederman" Cc: Jonathan Corbet Cc: Kees Cook Cc: "Luis R. Rodriguez" Cc: Takashi Iwai Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/ipc_namespace.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h index 6ab8c1bada3f..c309f43bde45 100644 --- a/include/linux/ipc_namespace.h +++ b/include/linux/ipc_namespace.h @@ -19,6 +19,7 @@ struct ipc_ids { struct rw_semaphore rwsem; struct idr ipcs_idr; int max_idx; + int last_idx; /* For wrap around detection */ #ifdef CONFIG_CHECKPOINT_RESTORE int next_id; #endif -- cgit v1.2.3 From 9e9291c71eb92b457eb798501e210dec3d12e795 Mon Sep 17 00:00:00 2001 From: Andrei Vagin Date: Tue, 14 May 2019 15:46:42 -0700 Subject: include/linux/sched/signal.h: replace `tsk' with `task' This file uses "task" 85 times and "tsk" 25 times. It is better to be consistent. Link: http://lkml.kernel.org/r/20181129180547.15976-1-avagin@gmail.com Signed-off-by: Andrei Vagin Reviewed-by: Andrew Morton Cc: Oleg Nesterov Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sched/signal.h | 51 ++++++++++++++++++++++---------------------- 1 file changed, 26 insertions(+), 25 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h index e412c092c1e8..38a0f0785323 100644 --- a/include/linux/sched/signal.h +++ b/include/linux/sched/signal.h @@ -271,17 +271,18 @@ static inline int signal_group_exit(const struct signal_struct *sig) extern void flush_signals(struct task_struct *); extern void ignore_signals(struct task_struct *); extern void flush_signal_handlers(struct task_struct *, int force_default); -extern int dequeue_signal(struct task_struct *tsk, sigset_t *mask, kernel_siginfo_t *info); +extern int dequeue_signal(struct task_struct *task, + sigset_t *mask, kernel_siginfo_t *info); static inline int kernel_dequeue_signal(void) { - struct task_struct *tsk = current; + struct task_struct *task = current; kernel_siginfo_t __info; int ret; - spin_lock_irq(&tsk->sighand->siglock); - ret = dequeue_signal(tsk, &tsk->blocked, &__info); - spin_unlock_irq(&tsk->sighand->siglock); + spin_lock_irq(&task->sighand->siglock); + ret = dequeue_signal(task, &task->blocked, &__info); + spin_unlock_irq(&task->sighand->siglock); return ret; } @@ -419,18 +420,18 @@ static inline void set_restore_sigmask(void) WARN_ON(!test_thread_flag(TIF_SIGPENDING)); } -static inline void clear_tsk_restore_sigmask(struct task_struct *tsk) +static inline void clear_tsk_restore_sigmask(struct task_struct *task) { - clear_tsk_thread_flag(tsk, TIF_RESTORE_SIGMASK); + clear_tsk_thread_flag(task, TIF_RESTORE_SIGMASK); } static inline void clear_restore_sigmask(void) { clear_thread_flag(TIF_RESTORE_SIGMASK); } -static inline bool test_tsk_restore_sigmask(struct task_struct *tsk) +static inline bool test_tsk_restore_sigmask(struct task_struct *task) { - return test_tsk_thread_flag(tsk, TIF_RESTORE_SIGMASK); + return test_tsk_thread_flag(task, TIF_RESTORE_SIGMASK); } static inline bool test_restore_sigmask(void) { @@ -449,9 +450,9 @@ static inline void set_restore_sigmask(void) current->restore_sigmask = true; WARN_ON(!test_thread_flag(TIF_SIGPENDING)); } -static inline void clear_tsk_restore_sigmask(struct task_struct *tsk) +static inline void clear_tsk_restore_sigmask(struct task_struct *task) { - tsk->restore_sigmask = false; + task->restore_sigmask = false; } static inline void clear_restore_sigmask(void) { @@ -461,9 +462,9 @@ static inline bool test_restore_sigmask(void) { return current->restore_sigmask; } -static inline bool test_tsk_restore_sigmask(struct task_struct *tsk) +static inline bool test_tsk_restore_sigmask(struct task_struct *task) { - return tsk->restore_sigmask; + return task->restore_sigmask; } static inline bool test_and_clear_restore_sigmask(void) { @@ -617,9 +618,9 @@ static inline struct pid *task_session(struct task_struct *task) return task->signal->pids[PIDTYPE_SID]; } -static inline int get_nr_threads(struct task_struct *tsk) +static inline int get_nr_threads(struct task_struct *task) { - return tsk->signal->nr_threads; + return task->signal->nr_threads; } static inline bool thread_group_leader(struct task_struct *p) @@ -658,35 +659,35 @@ static inline int thread_group_empty(struct task_struct *p) #define delay_group_leader(p) \ (thread_group_leader(p) && !thread_group_empty(p)) -extern struct sighand_struct *__lock_task_sighand(struct task_struct *tsk, +extern struct sighand_struct *__lock_task_sighand(struct task_struct *task, unsigned long *flags); -static inline struct sighand_struct *lock_task_sighand(struct task_struct *tsk, +static inline struct sighand_struct *lock_task_sighand(struct task_struct *task, unsigned long *flags) { struct sighand_struct *ret; - ret = __lock_task_sighand(tsk, flags); - (void)__cond_lock(&tsk->sighand->siglock, ret); + ret = __lock_task_sighand(task, flags); + (void)__cond_lock(&task->sighand->siglock, ret); return ret; } -static inline void unlock_task_sighand(struct task_struct *tsk, +static inline void unlock_task_sighand(struct task_struct *task, unsigned long *flags) { - spin_unlock_irqrestore(&tsk->sighand->siglock, *flags); + spin_unlock_irqrestore(&task->sighand->siglock, *flags); } -static inline unsigned long task_rlimit(const struct task_struct *tsk, +static inline unsigned long task_rlimit(const struct task_struct *task, unsigned int limit) { - return READ_ONCE(tsk->signal->rlim[limit].rlim_cur); + return READ_ONCE(task->signal->rlim[limit].rlim_cur); } -static inline unsigned long task_rlimit_max(const struct task_struct *tsk, +static inline unsigned long task_rlimit_max(const struct task_struct *task, unsigned int limit) { - return READ_ONCE(tsk->signal->rlim[limit].rlim_max); + return READ_ONCE(task->signal->rlim[limit].rlim_max); } static inline unsigned long rlimit(unsigned int limit) -- cgit v1.2.3 From 871789d4af807d1e91a6299f12a67e06177ed420 Mon Sep 17 00:00:00 2001 From: Chris Down Date: Tue, 14 May 2019 15:46:57 -0700 Subject: mm, memcg: rename ambiguously named memory.stat counters and functions I spent literally an hour trying to work out why an earlier version of my memory.events aggregation code doesn't work properly, only to find out I was calling memcg->events instead of memcg->memory_events, which is fairly confusing. This naming seems in need of reworking, so make it harder to do the wrong thing by using vmevents instead of events, which makes it more clear that these are vm counters rather than memcg-specific counters. There are also a few other inconsistent names in both the percpu and aggregated structs, so these are all cleaned up to be more coherent and easy to understand. This commit contains code cleanup only: there are no logic changes. [akpm@linux-foundation.org: fix it for preceding changes] Link: http://lkml.kernel.org/r/20190208224319.GA23801@chrisdown.name Signed-off-by: Chris Down Acked-by: Johannes Weiner Cc: Michal Hocko Cc: Tejun Heo Cc: Roman Gushchin Cc: Dennis Zhou Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'include/linux') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 30561a954ee0..fa098d168b75 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -94,8 +94,8 @@ enum mem_cgroup_events_target { MEM_CGROUP_NTARGETS, }; -struct mem_cgroup_stat_cpu { - long count[MEMCG_NR_STAT]; +struct memcg_vmstats_percpu { + long stat[MEMCG_NR_STAT]; unsigned long events[NR_VM_EVENT_ITEMS]; unsigned long nr_page_events; unsigned long targets[MEM_CGROUP_NTARGETS]; @@ -274,12 +274,12 @@ struct mem_cgroup { struct task_struct *move_lock_task; /* memory.stat */ - struct mem_cgroup_stat_cpu __percpu *stat_cpu; + struct memcg_vmstats_percpu __percpu *vmstats_percpu; MEMCG_PADDING(_pad2_); - atomic_long_t stat[MEMCG_NR_STAT]; - atomic_long_t events[NR_VM_EVENT_ITEMS]; + atomic_long_t vmstats[MEMCG_NR_STAT]; + atomic_long_t vmevents[NR_VM_EVENT_ITEMS]; atomic_long_t memory_events[MEMCG_NR_MEMORY_EVENTS]; unsigned long socket_pressure; @@ -557,7 +557,7 @@ void unlock_page_memcg(struct page *page); static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, int idx) { - long x = atomic_long_read(&memcg->stat[idx]); + long x = atomic_long_read(&memcg->vmstats[idx]); #ifdef CONFIG_SMP if (x < 0) x = 0; @@ -574,12 +574,12 @@ static inline void __mod_memcg_state(struct mem_cgroup *memcg, if (mem_cgroup_disabled()) return; - x = val + __this_cpu_read(memcg->stat_cpu->count[idx]); + x = val + __this_cpu_read(memcg->vmstats_percpu->stat[idx]); if (unlikely(abs(x) > MEMCG_CHARGE_BATCH)) { - atomic_long_add(x, &memcg->stat[idx]); + atomic_long_add(x, &memcg->vmstats[idx]); x = 0; } - __this_cpu_write(memcg->stat_cpu->count[idx], x); + __this_cpu_write(memcg->vmstats_percpu->stat[idx], x); } /* idx can be of type enum memcg_stat_item or node_stat_item */ @@ -717,12 +717,12 @@ static inline void __count_memcg_events(struct mem_cgroup *memcg, if (mem_cgroup_disabled()) return; - x = count + __this_cpu_read(memcg->stat_cpu->events[idx]); + x = count + __this_cpu_read(memcg->vmstats_percpu->events[idx]); if (unlikely(x > MEMCG_CHARGE_BATCH)) { - atomic_long_add(x, &memcg->events[idx]); + atomic_long_add(x, &memcg->vmevents[idx]); x = 0; } - __this_cpu_write(memcg->stat_cpu->events[idx], x); + __this_cpu_write(memcg->vmstats_percpu->events[idx], x); } static inline void count_memcg_events(struct mem_cgroup *memcg, -- cgit v1.2.3 From 205b20cc5a99cdf197c32f4dbee2b09c699477f0 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Tue, 14 May 2019 15:47:06 -0700 Subject: mm: memcontrol: make cgroup stats and events query API explicitly local Patch series "mm: memcontrol: memory.stat cost & correctness". The cgroup memory.stat file holds recursive statistics for the entire subtree. The current implementation does this tree walk on-demand whenever the file is read. This is giving us problems in production. 1. The cost of aggregating the statistics on-demand is high. A lot of system service cgroups are mostly idle and their stats don't change between reads, yet we always have to check them. There are also always some lazily-dying cgroups sitting around that are pinned by a handful of remaining page cache; the same applies to them. In an application that periodically monitors memory.stat in our fleet, we have seen the aggregation consume up to 5% CPU time. 2. When cgroups die and disappear from the cgroup tree, so do their accumulated vm events. The result is that the event counters at higher-level cgroups can go backwards and confuse some of our automation, let alone people looking at the graphs over time. To address both issues, this patch series changes the stat implementation to spill counts upwards when the counters change. The upward spilling is batched using the existing per-cpu cache. In a sparse file stress test with 5 level cgroup nesting, the additional cost of the flushing was negligible (a little under 1% of CPU at 100% CPU utilization, compared to the 5% of reading memory.stat during regular operation). This patch (of 4): memcg_page_state(), lruvec_page_state(), memcg_sum_events() are currently returning the state of the local memcg or lruvec, not the recursive state. In practice there is a demand for both versions, although the callers that want the recursive counts currently sum them up by hand. Per default, cgroups are considered recursive entities and generally we expect more users of the recursive counters, with the local counts being special cases. To reflect that in the name, add a _local suffix to the current implementations. The following patch will re-incarnate these functions with recursive semantics, but with an O(1) implementation. [hannes@cmpxchg.org: fix bisection hole] Link: http://lkml.kernel.org/r/20190417160347.GC23013@cmpxchg.org Link: http://lkml.kernel.org/r/20190412151507.2769-2-hannes@cmpxchg.org Signed-off-by: Johannes Weiner Reviewed-by: Shakeel Butt Reviewed-by: Roman Gushchin Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index fa098d168b75..0aa0889218bf 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -554,8 +554,8 @@ void unlock_page_memcg(struct page *page); * idx can be of type enum memcg_stat_item or node_stat_item. * Keep in sync with memcg_exact_page_state(). */ -static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, - int idx) +static inline unsigned long memcg_page_state_local(struct mem_cgroup *memcg, + int idx) { long x = atomic_long_read(&memcg->vmstats[idx]); #ifdef CONFIG_SMP @@ -624,8 +624,8 @@ static inline void mod_memcg_page_state(struct page *page, mod_memcg_state(page->mem_cgroup, idx, val); } -static inline unsigned long lruvec_page_state(struct lruvec *lruvec, - enum node_stat_item idx) +static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, + enum node_stat_item idx) { struct mem_cgroup_per_node *pn; long x; @@ -1011,8 +1011,8 @@ static inline void mem_cgroup_print_oom_group(struct mem_cgroup *memcg) { } -static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, - int idx) +static inline unsigned long memcg_page_state_local(struct mem_cgroup *memcg, + int idx) { return 0; } @@ -1041,8 +1041,8 @@ static inline void mod_memcg_page_state(struct page *page, { } -static inline unsigned long lruvec_page_state(struct lruvec *lruvec, - enum node_stat_item idx) +static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, + enum node_stat_item idx) { return node_page_state(lruvec_pgdat(lruvec), idx); } -- cgit v1.2.3 From db9adbcbe740e0986b575dd56aad834ce9e9b5d3 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Tue, 14 May 2019 15:47:09 -0700 Subject: mm: memcontrol: move stat/event counting functions out-of-line These are getting too big to be inlined in every callsite. They were stolen from vmstat.c, which already out-of-lines them, and they have only been growing since. The callsites aren't that hot, either. Move __mod_memcg_state() __mod_lruvec_state() and __count_memcg_events() out of line and add kerneldoc comments. Link: http://lkml.kernel.org/r/20190412151507.2769-3-hannes@cmpxchg.org Signed-off-by: Johannes Weiner Reviewed-by: Shakeel Butt Reviewed-by: Roman Gushchin Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 62 ++++------------------------------------------ 1 file changed, 5 insertions(+), 57 deletions(-) (limited to 'include/linux') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 0aa0889218bf..e35e6a651187 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -565,22 +565,7 @@ static inline unsigned long memcg_page_state_local(struct mem_cgroup *memcg, return x; } -/* idx can be of type enum memcg_stat_item or node_stat_item */ -static inline void __mod_memcg_state(struct mem_cgroup *memcg, - int idx, int val) -{ - long x; - - if (mem_cgroup_disabled()) - return; - - x = val + __this_cpu_read(memcg->vmstats_percpu->stat[idx]); - if (unlikely(abs(x) > MEMCG_CHARGE_BATCH)) { - atomic_long_add(x, &memcg->vmstats[idx]); - x = 0; - } - __this_cpu_write(memcg->vmstats_percpu->stat[idx], x); -} +void __mod_memcg_state(struct mem_cgroup *memcg, int idx, int val); /* idx can be of type enum memcg_stat_item or node_stat_item */ static inline void mod_memcg_state(struct mem_cgroup *memcg, @@ -642,31 +627,8 @@ static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, return x; } -static inline void __mod_lruvec_state(struct lruvec *lruvec, - enum node_stat_item idx, int val) -{ - struct mem_cgroup_per_node *pn; - long x; - - /* Update node */ - __mod_node_page_state(lruvec_pgdat(lruvec), idx, val); - - if (mem_cgroup_disabled()) - return; - - pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); - - /* Update memcg */ - __mod_memcg_state(pn->memcg, idx, val); - - /* Update lruvec */ - x = val + __this_cpu_read(pn->lruvec_stat_cpu->count[idx]); - if (unlikely(abs(x) > MEMCG_CHARGE_BATCH)) { - atomic_long_add(x, &pn->lruvec_stat[idx]); - x = 0; - } - __this_cpu_write(pn->lruvec_stat_cpu->count[idx], x); -} +void __mod_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, + int val); static inline void mod_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val) @@ -708,22 +670,8 @@ unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, gfp_t gfp_mask, unsigned long *total_scanned); -static inline void __count_memcg_events(struct mem_cgroup *memcg, - enum vm_event_item idx, - unsigned long count) -{ - unsigned long x; - - if (mem_cgroup_disabled()) - return; - - x = count + __this_cpu_read(memcg->vmstats_percpu->events[idx]); - if (unlikely(x > MEMCG_CHARGE_BATCH)) { - atomic_long_add(x, &memcg->vmevents[idx]); - x = 0; - } - __this_cpu_write(memcg->vmstats_percpu->events[idx], x); -} +void __count_memcg_events(struct mem_cgroup *memcg, enum vm_event_item idx, + unsigned long count); static inline void count_memcg_events(struct mem_cgroup *memcg, enum vm_event_item idx, -- cgit v1.2.3 From 42a300353577ccc17ecc627b8570a89fa1678bec Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Tue, 14 May 2019 15:47:12 -0700 Subject: mm: memcontrol: fix recursive statistics correctness & scalabilty Right now, when somebody needs to know the recursive memory statistics and events of a cgroup subtree, they need to walk the entire subtree and sum up the counters manually. There are two issues with this: 1. When a cgroup gets deleted, its stats are lost. The state counters should all be 0 at that point, of course, but the events are not. When this happens, the event counters, which are supposed to be monotonic, can go backwards in the parent cgroups. 2. During regular operation, we always have a certain number of lazily freed cgroups sitting around that have been deleted, have no tasks, but have a few cache pages remaining. These groups' statistics do not change until we eventually hit memory pressure, but somebody watching, say, memory.stat on an ancestor has to iterate those every time. This patch addresses both issues by introducing recursive counters at each level that are propagated from the write side when stats change. Upward propagation happens when the per-cpu caches spill over into the local atomic counter. This is the same thing we do during charge and uncharge, except that the latter uses atomic RMWs, which are more expensive; stat changes happen at around the same rate. In a sparse file test (page faults and reclaim at maximum CPU speed) with 5 cgroup nesting levels, perf shows __mod_memcg_page state at ~1%. Link: http://lkml.kernel.org/r/20190412151507.2769-4-hannes@cmpxchg.org Signed-off-by: Johannes Weiner Reviewed-by: Shakeel Butt Reviewed-by: Roman Gushchin Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 54 +++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 51 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index e35e6a651187..bc74d6a4407c 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -128,6 +128,7 @@ struct mem_cgroup_per_node { struct lruvec_stat __percpu *lruvec_stat_cpu; atomic_long_t lruvec_stat[NR_VM_NODE_STAT_ITEMS]; + atomic_long_t lruvec_stat_local[NR_VM_NODE_STAT_ITEMS]; unsigned long lru_zone_size[MAX_NR_ZONES][NR_LRU_LISTS]; @@ -279,8 +280,12 @@ struct mem_cgroup { MEMCG_PADDING(_pad2_); atomic_long_t vmstats[MEMCG_NR_STAT]; + atomic_long_t vmstats_local[MEMCG_NR_STAT]; + atomic_long_t vmevents[NR_VM_EVENT_ITEMS]; - atomic_long_t memory_events[MEMCG_NR_MEMORY_EVENTS]; + atomic_long_t vmevents_local[NR_VM_EVENT_ITEMS]; + + atomic_long_t memory_events[MEMCG_NR_MEMORY_EVENTS]; unsigned long socket_pressure; @@ -550,6 +555,20 @@ struct mem_cgroup *lock_page_memcg(struct page *page); void __unlock_page_memcg(struct mem_cgroup *memcg); void unlock_page_memcg(struct page *page); +/* + * idx can be of type enum memcg_stat_item or node_stat_item. + * Keep in sync with memcg_exact_page_state(). + */ +static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, int idx) +{ + long x = atomic_long_read(&memcg->vmstats[idx]); +#ifdef CONFIG_SMP + if (x < 0) + x = 0; +#endif + return x; +} + /* * idx can be of type enum memcg_stat_item or node_stat_item. * Keep in sync with memcg_exact_page_state(). @@ -557,7 +576,7 @@ void unlock_page_memcg(struct page *page); static inline unsigned long memcg_page_state_local(struct mem_cgroup *memcg, int idx) { - long x = atomic_long_read(&memcg->vmstats[idx]); + long x = atomic_long_read(&memcg->vmstats_local[idx]); #ifdef CONFIG_SMP if (x < 0) x = 0; @@ -609,6 +628,24 @@ static inline void mod_memcg_page_state(struct page *page, mod_memcg_state(page->mem_cgroup, idx, val); } +static inline unsigned long lruvec_page_state(struct lruvec *lruvec, + enum node_stat_item idx) +{ + struct mem_cgroup_per_node *pn; + long x; + + if (mem_cgroup_disabled()) + return node_page_state(lruvec_pgdat(lruvec), idx); + + pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); + x = atomic_long_read(&pn->lruvec_stat[idx]); +#ifdef CONFIG_SMP + if (x < 0) + x = 0; +#endif + return x; +} + static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, enum node_stat_item idx) { @@ -619,7 +656,7 @@ static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, return node_page_state(lruvec_pgdat(lruvec), idx); pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); - x = atomic_long_read(&pn->lruvec_stat[idx]); + x = atomic_long_read(&pn->lruvec_stat_local[idx]); #ifdef CONFIG_SMP if (x < 0) x = 0; @@ -959,6 +996,11 @@ static inline void mem_cgroup_print_oom_group(struct mem_cgroup *memcg) { } +static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, int idx) +{ + return 0; +} + static inline unsigned long memcg_page_state_local(struct mem_cgroup *memcg, int idx) { @@ -989,6 +1031,12 @@ static inline void mod_memcg_page_state(struct page *page, { } +static inline unsigned long lruvec_page_state(struct lruvec *lruvec, + enum node_stat_item idx) +{ + return node_page_state(lruvec_pgdat(lruvec), idx); +} + static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, enum node_stat_item idx) { -- cgit v1.2.3 From d0660f0b3b7d1760d1ab60ec8e9d0de52e885207 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 3 May 2019 18:26:55 +0100 Subject: dns_resolver: Allow used keys to be invalidated Allow used DNS resolver keys to be invalidated after use if the caller is doing its own caching of the results. This reduces the amount of resources required. Fix AFS to invalidate DNS results to kill off permanent failure records that get lodged in the resolver keyring and prevent future lookups from happening. Fixes: 0a5143f2f89c ("afs: Implement VL server rotation") Signed-off-by: David Howells --- include/linux/dns_resolver.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/dns_resolver.h b/include/linux/dns_resolver.h index 34a744a1bafc..f2b3ae22e6b7 100644 --- a/include/linux/dns_resolver.h +++ b/include/linux/dns_resolver.h @@ -27,6 +27,7 @@ #include extern int dns_query(const char *type, const char *name, size_t namelen, - const char *options, char **_result, time64_t *_expiry); + const char *options, char **_result, time64_t *_expiry, + bool invalidate); #endif /* _LINUX_DNS_RESOLVER_H */ -- cgit v1.2.3 From a49294eac27c7159cd8b89a96c3b1a857e37b683 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 3 May 2019 18:30:33 +0100 Subject: Add wait_var_event_interruptible() Add wait_var_event_interruptible() to allow interruptible waits for events. Signed-off-by: David Howells Acked-by: Peter Zijlstra (Intel) --- include/linux/wait_bit.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux') diff --git a/include/linux/wait_bit.h b/include/linux/wait_bit.h index 2b0072fa5e92..7dec36aecbd9 100644 --- a/include/linux/wait_bit.h +++ b/include/linux/wait_bit.h @@ -305,6 +305,19 @@ do { \ __ret; \ }) +#define __wait_var_event_interruptible(var, condition) \ + ___wait_var_event(var, condition, TASK_INTERRUPTIBLE, 0, 0, \ + schedule()) + +#define wait_var_event_interruptible(var, condition) \ +({ \ + int __ret = 0; \ + might_sleep(); \ + if (!(condition)) \ + __ret = __wait_var_event_interruptible(var, condition); \ + __ret; \ +}) + /** * clear_and_wake_up_bit - clear a bit and wake up anyone waiting on that bit * -- cgit v1.2.3 From 62e59c4e69b3cdbad67e3c2d49e4df4cfe1679e3 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Thu, 18 Apr 2019 15:20:22 -0700 Subject: clk: Remove io.h from clk-provider.h Now that we've gotten rid of clk_readl() we can remove io.h from the clk-provider header and push out the io.h include to any code that isn't already including the io.h header but using things like readl/writel, etc. Found with this grep: git grep -l clk-provider.h | grep '.c$' | xargs git grep -L 'linux/io.h' | \ xargs git grep -l \ -e '\<__iowrite32_copy\>' --or \ -e '\<__ioread32_copy\>' --or \ -e '\<__iowrite64_copy\>' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\<__devm_memremap_pages\>' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\<__io_aw\>' --or \ -e '\<__io_pbw\>' --or \ -e '\<__io_paw\>' --or \ -e '\<__io_pbr\>' --or \ -e '\<__io_par\>' --or \ -e '\<__raw_readb\>' --or \ -e '\<__raw_readw\>' --or \ -e '\<__raw_readl\>' --or \ -e '\<__raw_readq\>' --or \ -e '\<__raw_writeb\>' --or \ -e '\<__raw_writew\>' --or \ -e '\<__raw_writel\>' --or \ -e '\<__raw_writeq\>' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\<__io_virt\>' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\<__ioremap\>' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' --or \ -e '\' I also reordered a couple includes when they weren't alphabetical and removed clk.h from kona, replacing it with clk-provider.h because that driver doesn't use clk consumer APIs. Acked-by: Geert Uytterhoeven Cc: Chen-Yu Tsai Acked-by: Maxime Ripard Acked-by: Tero Kristo Acked-by: Sekhar Nori Cc: Krzysztof Kozlowski Acked-by: Mark Brown Cc: Chris Zankel Acked-by: Max Filippov Acked-by: John Crispin Acked-by: Heiko Stuebner Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 491d992d045d..bb6118f79784 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -6,7 +6,6 @@ #ifndef __LINUX_CLK_PROVIDER_H #define __LINUX_CLK_PROVIDER_H -#include #include #include -- cgit v1.2.3 From ba6306e3f648a857ae52ddcabc2859542fd2f94c Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 16 May 2019 15:19:46 +0800 Subject: rhashtable: Remove RCU marking from rhash_lock_head The opaque type rhash_lock_head should not be marked with __rcu because it can never be dereferenced. We should apply the RCU marking when we turn it into a pointer which can be dereferenced. This patch does exactly that. This fixes a number of sparse warnings as well as getting rid of some unnecessary RCU checking. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- include/linux/rhashtable.h | 58 +++++++++++++++++++++++++--------------------- 1 file changed, 32 insertions(+), 26 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index f7714d3b46bd..9f8bc06d4136 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -84,7 +84,7 @@ struct bucket_table { struct lockdep_map dep_map; - struct rhash_lock_head __rcu *buckets[] ____cacheline_aligned_in_smp; + struct rhash_lock_head *buckets[] ____cacheline_aligned_in_smp; }; /* @@ -261,13 +261,13 @@ void rhashtable_free_and_destroy(struct rhashtable *ht, void *arg); void rhashtable_destroy(struct rhashtable *ht); -struct rhash_lock_head __rcu **rht_bucket_nested(const struct bucket_table *tbl, - unsigned int hash); -struct rhash_lock_head __rcu **__rht_bucket_nested(const struct bucket_table *tbl, - unsigned int hash); -struct rhash_lock_head __rcu **rht_bucket_nested_insert(struct rhashtable *ht, - struct bucket_table *tbl, - unsigned int hash); +struct rhash_lock_head **rht_bucket_nested(const struct bucket_table *tbl, + unsigned int hash); +struct rhash_lock_head **__rht_bucket_nested(const struct bucket_table *tbl, + unsigned int hash); +struct rhash_lock_head **rht_bucket_nested_insert(struct rhashtable *ht, + struct bucket_table *tbl, + unsigned int hash); #define rht_dereference(p, ht) \ rcu_dereference_protected(p, lockdep_rht_mutex_is_held(ht)) @@ -284,21 +284,21 @@ struct rhash_lock_head __rcu **rht_bucket_nested_insert(struct rhashtable *ht, #define rht_entry(tpos, pos, member) \ ({ tpos = container_of(pos, typeof(*tpos), member); 1; }) -static inline struct rhash_lock_head __rcu *const *rht_bucket( +static inline struct rhash_lock_head *const *rht_bucket( const struct bucket_table *tbl, unsigned int hash) { return unlikely(tbl->nest) ? rht_bucket_nested(tbl, hash) : &tbl->buckets[hash]; } -static inline struct rhash_lock_head __rcu **rht_bucket_var( +static inline struct rhash_lock_head **rht_bucket_var( struct bucket_table *tbl, unsigned int hash) { return unlikely(tbl->nest) ? __rht_bucket_nested(tbl, hash) : &tbl->buckets[hash]; } -static inline struct rhash_lock_head __rcu **rht_bucket_insert( +static inline struct rhash_lock_head **rht_bucket_insert( struct rhashtable *ht, struct bucket_table *tbl, unsigned int hash) { return unlikely(tbl->nest) ? rht_bucket_nested_insert(ht, tbl, hash) : @@ -349,6 +349,12 @@ static inline void rht_unlock(struct bucket_table *tbl, local_bh_enable(); } +static inline struct rhash_head __rcu *__rht_ptr( + struct rhash_lock_head *const *bkt) +{ + return (struct rhash_head __rcu *)((unsigned long)*bkt & ~BIT(0)); +} + /* * Where 'bkt' is a bucket and might be locked: * rht_ptr() dereferences that pointer and clears the lock bit. @@ -356,30 +362,30 @@ static inline void rht_unlock(struct bucket_table *tbl, * access is guaranteed, such as when destroying the table. */ static inline struct rhash_head *rht_ptr( - struct rhash_lock_head __rcu * const *bkt, + struct rhash_lock_head *const *bkt, struct bucket_table *tbl, unsigned int hash) { - const struct rhash_lock_head *p = - rht_dereference_bucket_rcu(*bkt, tbl, hash); + struct rhash_head __rcu *p = __rht_ptr(bkt); - if ((((unsigned long)p) & ~BIT(0)) == 0) + if (!p) return RHT_NULLS_MARKER(bkt); - return (void *)(((unsigned long)p) & ~BIT(0)); + + return rht_dereference_bucket_rcu(p, tbl, hash); } static inline struct rhash_head *rht_ptr_exclusive( - struct rhash_lock_head __rcu * const *bkt) + struct rhash_lock_head *const *bkt) { - const struct rhash_lock_head *p = - rcu_dereference_protected(*bkt, 1); + struct rhash_head __rcu *p = __rht_ptr(bkt); if (!p) return RHT_NULLS_MARKER(bkt); - return (void *)(((unsigned long)p) & ~BIT(0)); + + return rcu_dereference_protected(p, 1); } -static inline void rht_assign_locked(struct rhash_lock_head __rcu **bkt, +static inline void rht_assign_locked(struct rhash_lock_head **bkt, struct rhash_head *obj) { struct rhash_head __rcu **p = (struct rhash_head __rcu **)bkt; @@ -390,7 +396,7 @@ static inline void rht_assign_locked(struct rhash_lock_head __rcu **bkt, } static inline void rht_assign_unlock(struct bucket_table *tbl, - struct rhash_lock_head __rcu **bkt, + struct rhash_lock_head **bkt, struct rhash_head *obj) { struct rhash_head __rcu **p = (struct rhash_head __rcu **)bkt; @@ -587,7 +593,7 @@ static inline struct rhash_head *__rhashtable_lookup( .ht = ht, .key = key, }; - struct rhash_lock_head __rcu * const *bkt; + struct rhash_lock_head *const *bkt; struct bucket_table *tbl; struct rhash_head *he; unsigned int hash; @@ -703,7 +709,7 @@ static inline void *__rhashtable_insert_fast( .ht = ht, .key = key, }; - struct rhash_lock_head __rcu **bkt; + struct rhash_lock_head **bkt; struct rhash_head __rcu **pprev; struct bucket_table *tbl; struct rhash_head *head; @@ -989,7 +995,7 @@ static inline int __rhashtable_remove_fast_one( struct rhash_head *obj, const struct rhashtable_params params, bool rhlist) { - struct rhash_lock_head __rcu **bkt; + struct rhash_lock_head **bkt; struct rhash_head __rcu **pprev; struct rhash_head *he; unsigned int hash; @@ -1141,7 +1147,7 @@ static inline int __rhashtable_replace_fast( struct rhash_head *obj_old, struct rhash_head *obj_new, const struct rhashtable_params params) { - struct rhash_lock_head __rcu **bkt; + struct rhash_lock_head **bkt; struct rhash_head __rcu **pprev; struct rhash_head *he; unsigned int hash; -- cgit v1.2.3 From 185ce5c38ea76f29b6bd9c7c8c7a5e5408834920 Mon Sep 17 00:00:00 2001 From: Willem de Bruijn Date: Wed, 15 May 2019 13:29:16 -0400 Subject: net: test nouarg before dereferencing zerocopy pointers Zerocopy skbs without completion notification were added for packet sockets with PACKET_TX_RING user buffers. Those signal completion through the TP_STATUS_USER bit in the ring. Zerocopy annotation was added only to avoid premature notification after clone or orphan, by triggering a copy on these paths for these packets. The mechanism had to define a special "no-uarg" mode because packet sockets already use skb_uarg(skb) == skb_shinfo(skb)->destructor_arg for a different pointer. Before deferencing skb_uarg(skb), verify that it is a real pointer. Fixes: 5cd8d46ea1562 ("packet: copy user buffers before orphan or clone") Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller --- include/linux/skbuff.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 6d58fa8a65fd..2ee5e63195c0 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1434,10 +1434,12 @@ static inline void skb_zcopy_clear(struct sk_buff *skb, bool zerocopy) struct ubuf_info *uarg = skb_zcopy(skb); if (uarg) { - if (uarg->callback == sock_zerocopy_callback) { + if (skb_zcopy_is_nouarg(skb)) { + /* no notification callback */ + } else if (uarg->callback == sock_zerocopy_callback) { uarg->zerocopy = uarg->zerocopy && zerocopy; sock_zerocopy_put(uarg); - } else if (!skb_zcopy_is_nouarg(skb)) { + } else { uarg->callback(uarg, zerocopy); } @@ -2691,7 +2693,8 @@ static inline int skb_orphan_frags(struct sk_buff *skb, gfp_t gfp_mask) { if (likely(!skb_zcopy(skb))) return 0; - if (skb_uarg(skb)->callback == sock_zerocopy_callback) + if (!skb_zcopy_is_nouarg(skb) && + skb_uarg(skb)->callback == sock_zerocopy_callback) return 0; return skb_copy_ubufs(skb, gfp_mask); } -- cgit v1.2.3 From 7878c231dae05bae9dcf2ad4d309f02e51625033 Mon Sep 17 00:00:00 2001 From: Qian Cai Date: Thu, 16 May 2019 15:57:41 -0400 Subject: slab: remove /proc/slab_allocators It turned out that DEBUG_SLAB_LEAK is still broken even after recent recue efforts that when there is a large number of objects like kmemleak_object which is normal on a debug kernel, # grep kmemleak /proc/slabinfo kmemleak_object 2243606 3436210 ... reading /proc/slab_allocators could easily loop forever while processing the kmemleak_object cache and any additional freeing or allocating objects will trigger a reprocessing. To make a situation worse, soft-lockups could easily happen in this sitatuion which will call printk() to allocate more kmemleak objects to guarantee an infinite loop. Also, since it seems no one had noticed when it was totally broken more than 2-year ago - see the commit fcf88917dd43 ("slab: fix a crash by reading /proc/slab_allocators"), probably nobody cares about it anymore due to the decline of the SLAB. Just remove it entirely. Suggested-by: Vlastimil Babka Suggested-by: Linus Torvalds Signed-off-by: Qian Cai Signed-off-by: Linus Torvalds --- include/linux/slab_def.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h index 9a5eafb7145b..abc7de77b988 100644 --- a/include/linux/slab_def.h +++ b/include/linux/slab_def.h @@ -61,9 +61,6 @@ struct kmem_cache { atomic_t allocmiss; atomic_t freehit; atomic_t freemiss; -#ifdef CONFIG_DEBUG_SLAB_LEAK - atomic_t store_user_clean; -#endif /* * If debugging is enabled, then the allocator can add additional -- cgit v1.2.3 From b8f5fe3bc5b9318d95770a09a480c31aced20cd2 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Thu, 16 May 2019 23:13:09 +0200 Subject: i2c: core: add device-managed version of i2c_new_dummy i2c_new_dummy is typically called from the probe function of the driver for the primary i2c client. It requires calls to i2c_unregister_device in the error path of the probe function and in the remove function. This can be simplified by introducing a device-managed version. Note the changed error case return value type: i2c_new_dummy returns NULL whilst devm_i2c_new_dummy_device returns an ERR_PTR. Signed-off-by: Heiner Kallweit [wsa: rename new functions and fix minor kdoc issues] Signed-off-by: Wolfram Sang Reviewed-by: Peter Rosin Reviewed-by: Kieran Bingham Reviewed-by: Bartosz Golaszewski Signed-off-by: Wolfram Sang --- include/linux/i2c.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/i2c.h b/include/linux/i2c.h index be27062f8ed1..6c4db54714f6 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -469,6 +469,9 @@ extern int i2c_probe_func_quick_read(struct i2c_adapter *, unsigned short addr); extern struct i2c_client * i2c_new_dummy(struct i2c_adapter *adap, u16 address); +extern struct i2c_client * +devm_i2c_new_dummy_device(struct device *dev, struct i2c_adapter *adap, u16 address); + extern struct i2c_client * i2c_new_secondary_device(struct i2c_client *client, const char *name, -- cgit v1.2.3 From 02f3afd97556017872a2d01d03d4ce66f8421a65 Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Fri, 5 Apr 2019 01:07:19 -0500 Subject: net/mlx5: E-Switch, Correct type to u16 for vport_num and int for vport_index To avoid any ambiguity between vport index and vport number, rename functions that had vport, to vport_num or vport_index appropriately. vport_num is u16 hence change mlx5_eswitch_index_to_vport_num() return type to u16. vport_index is an int in vport array. Hence change input type of vport index in mlx5_eswitch_index_to_vport_num() to int. Correct multiple eswitch representor interfaces use type u16 of rep->vport as type int vport_index. Send vport FW commands with correct eswitch u16 vport_num instead host int vport_index. Fixes: 5ae5162066d8 ("net/mlx5: E-Switch, Assign a different position for uplink rep and vport") Signed-off-by: Parav Pandit Signed-off-by: Vu Pham Reviewed-by: Bodong Wang Signed-off-by: Saeed Mahameed --- include/linux/mlx5/eswitch.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mlx5/eswitch.h b/include/linux/mlx5/eswitch.h index 0ca77dd1429c..cf226c190329 100644 --- a/include/linux/mlx5/eswitch.h +++ b/include/linux/mlx5/eswitch.h @@ -51,13 +51,13 @@ void mlx5_eswitch_register_vport_reps(struct mlx5_eswitch *esw, u8 rep_type); void mlx5_eswitch_unregister_vport_reps(struct mlx5_eswitch *esw, u8 rep_type); void *mlx5_eswitch_get_proto_dev(struct mlx5_eswitch *esw, - int vport, + u16 vport_num, u8 rep_type); struct mlx5_eswitch_rep *mlx5_eswitch_vport_rep(struct mlx5_eswitch *esw, - int vport); + u16 vport_num); void *mlx5_eswitch_uplink_get_proto_dev(struct mlx5_eswitch *esw, u8 rep_type); u8 mlx5_eswitch_mode(struct mlx5_eswitch *esw); struct mlx5_flow_handle * mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *esw, - int vport, u32 sqn); + u16 vport_num, u32 sqn); #endif -- cgit v1.2.3 From 68ad4a3304335358f95a417f2a2b0c909e5119c4 Mon Sep 17 00:00:00 2001 From: "Uladzislau Rezki (Sony)" Date: Fri, 17 May 2019 14:31:31 -0700 Subject: mm/vmalloc.c: keep track of free blocks for vmap allocation Patch series "improve vmap allocation", v3. Objective --------- Please have a look for the description at: https://lkml.org/lkml/2018/10/19/786 but let me also summarize it a bit here as well. The current implementation has O(N) complexity. Requests with different permissive parameters can lead to long allocation time. When i say "long" i mean milliseconds. Description ----------- This approach organizes the KVA memory layout into free areas of the 1-ULONG_MAX range, i.e. an allocation is done over free areas lookups, instead of finding a hole between two busy blocks. It allows to have lower number of objects which represent the free space, therefore to have less fragmented memory allocator. Because free blocks are always as large as possible. It uses the augment tree where all free areas are sorted in ascending order of va->va_start address in pair with linked list that provides O(1) access to prev/next elements. Since the tree is augment, we also maintain the "subtree_max_size" of VA that reflects a maximum available free block in its left or right sub-tree. Knowing that, we can easily traversal toward the lowest (left most path) free area. Allocation: ~O(log(N)) complexity. It is sequential allocation method therefore tends to maximize locality. The search is done until a first suitable block is large enough to encompass the requested parameters. Bigger areas are split. I copy paste here the description of how the area is split, since i described it in https://lkml.org/lkml/2018/10/19/786 A free block can be split by three different ways. Their names are FL_FIT_TYPE, LE_FIT_TYPE/RE_FIT_TYPE and NE_FIT_TYPE, i.e. they correspond to how requested size and alignment fit to a free block. FL_FIT_TYPE - in this case a free block is just removed from the free list/tree because it fully fits. Comparing with current design there is an extra work with rb-tree updating. LE_FIT_TYPE/RE_FIT_TYPE - left/right edges fit. In this case what we do is just cutting a free block. It is as fast as a current design. Most of the vmalloc allocations just end up with this case, because the edge is always aligned to 1. NE_FIT_TYPE - Is much less common case. Basically it happens when requested size and alignment does not fit left nor right edges, i.e. it is between them. In this case during splitting we have to build a remaining left free area and place it back to the free list/tree. Comparing with current design there are two extra steps. First one is we have to allocate a new vmap_area structure. Second one we have to insert that remaining free block to the address sorted list/tree. In order to optimize a first case there is a cache with free_vmap objects. Instead of allocating from slab we just take an object from the cache and reuse it. Second one is pretty optimized. Since we know a start point in the tree we do not do a search from the top. Instead a traversal begins from a rb-tree node we split. De-allocation. ~O(log(N)) complexity. An area is not inserted straight away to the tree/list, instead we identify the spot first, checking if it can be merged around neighbors. The list provides O(1) access to prev/next, so it is pretty fast to check it. Summarizing. If merged then large coalesced areas are created, if not the area is just linked making more fragments. There is one more thing that i should mention here. After modification of VA node, its subtree_max_size is updated if it was/is the biggest area in its left or right sub-tree. Apart of that it can also be populated back to upper levels to fix the tree. For more details please have a look at the __augment_tree_propagate_from() function and the description. Tests and stressing ------------------- I use the "test_vmalloc.sh" test driver available under "tools/testing/selftests/vm/" since 5.1-rc1 kernel. Just trigger "sudo ./test_vmalloc.sh" to find out how to deal with it. Tested on different platforms including x86_64/i686/ARM64/x86_64_NUMA. Regarding last one, i do not have any physical access to NUMA system, therefore i emulated it. The time of stressing is days. If you run the test driver in "stress mode", you also need the patch that is in Andrew's tree but not in Linux 5.1-rc1. So, please apply it: http://git.cmpxchg.org/cgit.cgi/linux-mmotm.git/commit/?id=e0cf7749bade6da318e98e934a24d8b62fab512c After massive testing, i have not identified any problems like memory leaks, crashes or kernel panics. I find it stable, but more testing would be good. Performance analysis -------------------- I have used two systems to test. One is i5-3320M CPU @ 2.60GHz and another is HiKey960(arm64) board. i5-3320M runs on 4.20 kernel, whereas Hikey960 uses 4.15 kernel. I have both system which could run on 5.1-rc1 as well, but the results have not been ready by time i an writing this. Currently it consist of 8 tests. There are three of them which correspond to different types of splitting(to compare with default). We have 3 ones(see above). Another 5 do allocations in different conditions. a) sudo ./test_vmalloc.sh performance When the test driver is run in "performance" mode, it runs all available tests pinned to first online CPU with sequential execution test order. We do it in order to get stable and repeatable results. Take a look at time difference in "long_busy_list_alloc_test". It is not surprising because the worst case is O(N). # i5-3320M How many cycles all tests took: CPU0=646919905370(default) cycles vs CPU0=193290498550(patched) cycles # See detailed table with results here: ftp://vps418301.ovh.net/incoming/vmap_test_results_v2/i5-3320M_performance_default.txt ftp://vps418301.ovh.net/incoming/vmap_test_results_v2/i5-3320M_performance_patched.txt # Hikey960 8x CPUs How many cycles all tests took: CPU0=3478683207 cycles vs CPU0=463767978 cycles # See detailed table with results here: ftp://vps418301.ovh.net/incoming/vmap_test_results_v2/HiKey960_performance_default.txt ftp://vps418301.ovh.net/incoming/vmap_test_results_v2/HiKey960_performance_patched.txt b) time sudo ./test_vmalloc.sh test_repeat_count=1 With this configuration, all tests are run on all available online CPUs. Before running each CPU shuffles its tests execution order. It gives random allocation behaviour. So it is rough comparison, but it puts in the picture for sure. # i5-3320M vs real 101m22.813s real 0m56.805s user 0m0.011s user 0m0.015s sys 0m5.076s sys 0m0.023s # See detailed table with results here: ftp://vps418301.ovh.net/incoming/vmap_test_results_v2/i5-3320M_test_repeat_count_1_default.txt ftp://vps418301.ovh.net/incoming/vmap_test_results_v2/i5-3320M_test_repeat_count_1_patched.txt # Hikey960 8x CPUs vs real unknown real 4m25.214s user unknown user 0m0.011s sys unknown sys 0m0.670s I did not manage to complete this test on "default Hikey960" kernel version. After 24 hours it was still running, therefore i had to cancel it. That is why real/user/sys are "unknown". This patch (of 3): Currently an allocation of the new vmap area is done over busy list iteration(complexity O(n)) until a suitable hole is found between two busy areas. Therefore each new allocation causes the list being grown. Due to over fragmented list and different permissive parameters an allocation can take a long time. For example on embedded devices it is milliseconds. This patch organizes the KVA memory layout into free areas of the 1-ULONG_MAX range. It uses an augment red-black tree that keeps blocks sorted by their offsets in pair with linked list keeping the free space in order of increasing addresses. Nodes are augmented with the size of the maximum available free block in its left or right sub-tree. Thus, that allows to take a decision and traversal toward the block that will fit and will have the lowest start address, i.e. it is sequential allocation. Allocation: to allocate a new block a search is done over the tree until a suitable lowest(left most) block is large enough to encompass: the requested size, alignment and vstart point. If the block is bigger than requested size - it is split. De-allocation: when a busy vmap area is freed it can either be merged or inserted to the tree. Red-black tree allows efficiently find a spot whereas a linked list provides a constant-time access to previous and next blocks to check if merging can be done. In case of merging of de-allocated memory chunk a large coalesced area is created. Complexity: ~O(log(N)) [urezki@gmail.com: v3] Link: http://lkml.kernel.org/r/20190402162531.10888-2-urezki@gmail.com [urezki@gmail.com: v4] Link: http://lkml.kernel.org/r/20190406183508.25273-2-urezki@gmail.com Link: http://lkml.kernel.org/r/20190321190327.11813-2-urezki@gmail.com Signed-off-by: Uladzislau Rezki (Sony) Reviewed-by: Roman Gushchin Cc: Michal Hocko Cc: Matthew Wilcox Cc: Thomas Garnier Cc: Oleksiy Avramchenko Cc: Steven Rostedt Cc: Joel Fernandes Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/vmalloc.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index c6eebb839552..51e131245379 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -50,12 +50,16 @@ struct vm_struct { struct vmap_area { unsigned long va_start; unsigned long va_end; + + /* + * Largest available free size in subtree. + */ + unsigned long subtree_max_size; unsigned long flags; struct rb_node rb_node; /* address sorted rbtree */ struct list_head list; /* address sorted list */ struct llist_node purge_list; /* "lazy purge" list */ struct vm_struct *vm; - struct rcu_head rcu_head; }; /* -- cgit v1.2.3 From de6da1e8bcf0dd2058b950b127491821207679dc Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Fri, 17 May 2019 14:31:50 -0700 Subject: panic: add an option to replay all the printk message in buffer Currently on panic, kernel will lower the loglevel and print out pending printk msg only with console_flush_on_panic(). Add an option for users to configure the "panic_print" to replay all dmesg in buffer, some of which they may have never seen due to the loglevel setting, which will help panic debugging . [feng.tang@intel.com: keep the original console_flush_on_panic() inside panic()] Link: http://lkml.kernel.org/r/1556199137-14163-1-git-send-email-feng.tang@intel.com [feng.tang@intel.com: use logbuf lock to protect the console log index] Link: http://lkml.kernel.org/r/1556269868-22654-1-git-send-email-feng.tang@intel.com Link: http://lkml.kernel.org/r/1556095872-36838-1-git-send-email-feng.tang@intel.com Signed-off-by: Feng Tang Reviewed-by: Petr Mladek Cc: Aaro Koskinen Cc: Petr Mladek Cc: Steven Rostedt Cc: Sergey Senozhatsky Cc: Kees Cook Cc: Borislav Petkov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/console.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/console.h b/include/linux/console.h index ec9bdb3d7bab..d09951d5a94e 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -166,6 +166,11 @@ struct console { extern int console_set_on_cmdline; extern struct console *early_console; +enum con_flush_mode { + CONSOLE_FLUSH_PENDING, + CONSOLE_REPLAY_ALL, +}; + extern int add_preferred_console(char *name, int idx, char *options); extern void register_console(struct console *); extern int unregister_console(struct console *); @@ -175,7 +180,7 @@ extern int console_trylock(void); extern void console_unlock(void); extern void console_conditional_schedule(void); extern void console_unblank(void); -extern void console_flush_on_panic(void); +extern void console_flush_on_panic(enum con_flush_mode mode); extern struct tty_driver *console_device(int *); extern void console_stop(struct console *); extern void console_start(struct console *); -- cgit v1.2.3 From 6a0a923dfa1480df41fb486323b8375e387d516f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Petr=20=C5=A0tetiar?= Date: Sun, 19 May 2019 14:18:44 +0200 Subject: of_net: fix of_get_mac_address retval if compiled without CONFIG_OF MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit of_get_mac_address prior to commit d01f449c008a ("of_net: add NVMEM support to of_get_mac_address") could return only valid pointer or NULL, after this change it could return only valid pointer or ERR_PTR encoded error value, but I've forget to change the return value of of_get_mac_address in case where the kernel is compiled without CONFIG_OF, so I'm doing so now. Cc: Mirko Lindner Cc: Stephen Hemminger Fixes: d01f449c008a ("of_net: add NVMEM support to of_get_mac_address") Reported-by: Octavio Alvarez Signed-off-by: Petr Štetiar Signed-off-by: David S. Miller --- include/linux/of_net.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/of_net.h b/include/linux/of_net.h index 9cd72aab76fe..0f0346e6829c 100644 --- a/include/linux/of_net.h +++ b/include/linux/of_net.h @@ -22,7 +22,7 @@ static inline int of_get_phy_mode(struct device_node *np) static inline const void *of_get_mac_address(struct device_node *np) { - return NULL; + return ERR_PTR(-ENODEV); } static inline struct net_device *of_find_net_device_by_node(struct device_node *np) -- cgit v1.2.3 From 7bf7eac8d648057519adb6fce1e31458c902212c Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 16 May 2019 13:26:29 -0700 Subject: dax: Arrange for dax_supported check to span multiple devices Pankaj reports that starting with commit ad428cdb525a "dax: Check the end of the block-device capacity with dax_direct_access()" device-mapper no longer allows dax operation. This results from the stricter checks in __bdev_dax_supported() that validate that the start and end of a block-device map to the same 'pagemap' instance. Teach the dax-core and device-mapper to validate the 'pagemap' on a per-target basis. This is accomplished by refactoring the bdev_dax_supported() internals into generic_fsdax_supported() which takes a sector range to validate. Consequently generic_fsdax_supported() is suitable to be used in a device-mapper ->iterate_devices() callback. A new ->dax_supported() operation is added to allow composite devices to split and route upper-level bdev_dax_supported() requests. Fixes: ad428cdb525a ("dax: Check the end of the block-device...") Cc: Cc: Ira Weiny Cc: Dave Jiang Cc: Keith Busch Cc: Matthew Wilcox Cc: Vishal Verma Cc: Heiko Carstens Cc: Martin Schwidefsky Reviewed-by: Jan Kara Reported-by: Pankaj Gupta Reviewed-by: Pankaj Gupta Tested-by: Pankaj Gupta Tested-by: Vaibhav Jain Reviewed-by: Mike Snitzer Signed-off-by: Dan Williams --- include/linux/dax.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'include/linux') diff --git a/include/linux/dax.h b/include/linux/dax.h index 0dd316a74a29..becaea5f4488 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -19,6 +19,12 @@ struct dax_operations { */ long (*direct_access)(struct dax_device *, pgoff_t, long, void **, pfn_t *); + /* + * Validate whether this device is usable as an fsdax backing + * device. + */ + bool (*dax_supported)(struct dax_device *, struct block_device *, int, + sector_t, sector_t); /* copy_from_iter: required operation for fs-dax direct-i/o */ size_t (*copy_from_iter)(struct dax_device *, pgoff_t, void *, size_t, struct iov_iter *); @@ -75,6 +81,17 @@ static inline bool bdev_dax_supported(struct block_device *bdev, int blocksize) return __bdev_dax_supported(bdev, blocksize); } +bool __generic_fsdax_supported(struct dax_device *dax_dev, + struct block_device *bdev, int blocksize, sector_t start, + sector_t sectors); +static inline bool generic_fsdax_supported(struct dax_device *dax_dev, + struct block_device *bdev, int blocksize, sector_t start, + sector_t sectors) +{ + return __generic_fsdax_supported(dax_dev, bdev, blocksize, start, + sectors); +} + static inline struct dax_device *fs_dax_get_by_host(const char *host) { return dax_get_by_host(host); @@ -99,6 +116,13 @@ static inline bool bdev_dax_supported(struct block_device *bdev, return false; } +static inline bool generic_fsdax_supported(struct dax_device *dax_dev, + struct block_device *bdev, int blocksize, sector_t start, + sector_t sectors) +{ + return false; +} + static inline struct dax_device *fs_dax_get_by_host(const char *host) { return NULL; @@ -142,6 +166,8 @@ bool dax_alive(struct dax_device *dax_dev); void *dax_get_private(struct dax_device *dax_dev); long dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages, void **kaddr, pfn_t *pfn); +bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev, + int blocksize, sector_t start, sector_t len); size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, size_t bytes, struct iov_iter *i); size_t dax_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, -- cgit v1.2.3 From 457c89965399115e5cd8bf38f9c597293405703d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sun, 19 May 2019 13:08:55 +0100 Subject: treewide: Add SPDX license identifier for missed files Add SPDX license identifiers to all files which: - Have no license information of any form - Have EXPORT_.*_SYMBOL_GPL inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman --- include/linux/percpu-defs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h index 1ce8e264a269..a6fabd865211 100644 --- a/include/linux/percpu-defs.h +++ b/include/linux/percpu-defs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/percpu-defs.h - basic definitions for percpu areas * -- cgit v1.2.3 From 16216333235adf51093d0330a934a7e4a03134fe Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sun, 19 May 2019 15:51:31 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 1301 usa this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option [no]_[pad]_[ctrl] any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 176 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Jilayne Lovejoy Reviewed-by: Steve Winslow Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154040.652910950@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/host1x.h | 15 +-------------- include/linux/i2c-algo-pcf.h | 16 ++-------------- include/linux/i2c-dev.h | 15 +-------------- include/linux/i2c-mux.h | 16 +--------------- include/linux/i2c-smbus.h | 16 +--------------- include/linux/i2c.h | 16 ++-------------- include/linux/mfd/tps65090.h | 16 +--------------- include/linux/platform_data/mtd-mxc_nand.h | 15 +-------------- include/linux/platform_data/serial-imx.h | 15 +-------------- include/linux/power/bq2415x_charger.h | 15 +-------------- include/linux/power/sbs-battery.h | 15 +-------------- include/linux/regulator/max8973-regulator.h | 16 +--------------- include/linux/regulator/pfuze100.h | 15 +-------------- include/linux/regulator/tps51632-regulator.h | 16 +--------------- include/linux/regulator/tps62360.h | 16 +--------------- 15 files changed, 17 insertions(+), 216 deletions(-) (limited to 'include/linux') diff --git a/include/linux/host1x.h b/include/linux/host1x.h index 89110d896d72..cfff30b9a62e 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -1,19 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 2009-2013, NVIDIA Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef __LINUX_HOST1X_H diff --git a/include/linux/i2c-algo-pcf.h b/include/linux/i2c-algo-pcf.h index 538e8f41a319..696e7de83c79 100644 --- a/include/linux/i2c-algo-pcf.h +++ b/include/linux/i2c-algo-pcf.h @@ -1,23 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* ------------------------------------------------------------------------- */ /* adap-pcf.h i2c driver algorithms for PCF8584 adapters */ /* ------------------------------------------------------------------------- */ /* Copyright (C) 1995-97 Simon G. Vogl 1998-99 Hans Berglund - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, - MA 02110-1301 USA. */ + */ /* ------------------------------------------------------------------------- */ /* With some changes from Kyösti Mälkki and even diff --git a/include/linux/i2c-dev.h b/include/linux/i2c-dev.h index 79727144c5cd..4c86fce30a51 100644 --- a/include/linux/i2c-dev.h +++ b/include/linux/i2c-dev.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* i2c-dev.h - i2c-bus driver, char device interface Copyright (C) 1995-97 Simon G. Vogl Copyright (C) 1998-99 Frodo Looijaard - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, - MA 02110-1301 USA. */ #ifndef _LINUX_I2C_DEV_H #define _LINUX_I2C_DEV_H diff --git a/include/linux/i2c-mux.h b/include/linux/i2c-mux.h index bd74d5706f3b..c5a977320f82 100644 --- a/include/linux/i2c-mux.h +++ b/include/linux/i2c-mux.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * * i2c-mux.h - functions for the i2c-bus mux support @@ -5,21 +6,6 @@ * Copyright (c) 2008-2009 Rodolfo Giometti * Copyright (c) 2008-2009 Eurotech S.p.A. * Michael Lawnick - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, - * MA 02110-1301 USA. */ #ifndef _LINUX_I2C_MUX_H diff --git a/include/linux/i2c-smbus.h b/include/linux/i2c-smbus.h index fb0e040b1abb..585ad6fc3847 100644 --- a/include/linux/i2c-smbus.h +++ b/include/linux/i2c-smbus.h @@ -1,22 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * i2c-smbus.h - SMBus extensions to the I2C protocol * * Copyright (C) 2010 Jean Delvare - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, - * MA 02110-1301 USA. */ #ifndef _LINUX_I2C_SMBUS_H diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 6c4db54714f6..1308126fc384 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* ------------------------------------------------------------------------- */ /* */ /* i2c.h - definitions for the i2c-bus interface */ @@ -5,20 +6,7 @@ /* ------------------------------------------------------------------------- */ /* Copyright (C) 1995-2000 Simon G. Vogl - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, - MA 02110-1301 USA. */ + */ /* ------------------------------------------------------------------------- */ /* With some changes from Kyösti Mälkki and diff --git a/include/linux/mfd/tps65090.h b/include/linux/mfd/tps65090.h index f05bf4a146e2..44ebcc4d8f01 100644 --- a/include/linux/mfd/tps65090.h +++ b/include/linux/mfd/tps65090.h @@ -1,22 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Core driver interface for TI TPS65090 PMIC family * * Copyright (C) 2012 NVIDIA Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * */ #ifndef __LINUX_MFD_TPS65090_H diff --git a/include/linux/platform_data/mtd-mxc_nand.h b/include/linux/platform_data/mtd-mxc_nand.h index 6bb96ef1600b..d1230030c6db 100644 --- a/include/linux/platform_data/mtd-mxc_nand.h +++ b/include/linux/platform_data/mtd-mxc_nand.h @@ -1,20 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. * Copyright 2008 Sascha Hauer, kernel@pengutronix.de - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, - * MA 02110-1301, USA. */ #ifndef __ASM_ARCH_NAND_H diff --git a/include/linux/platform_data/serial-imx.h b/include/linux/platform_data/serial-imx.h index a938eba2f18e..0844b21372c7 100644 --- a/include/linux/platform_data/serial-imx.h +++ b/include/linux/platform_data/serial-imx.h @@ -1,19 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2008 by Sascha Hauer - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, - * MA 02110-1301, USA. */ #ifndef ASMARM_ARCH_UART_H diff --git a/include/linux/power/bq2415x_charger.h b/include/linux/power/bq2415x_charger.h index 50762af8b834..7a91b357e3ac 100644 --- a/include/linux/power/bq2415x_charger.h +++ b/include/linux/power/bq2415x_charger.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * bq2415x charger driver * * Copyright (C) 2011-2013 Pali Rohár - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef BQ2415X_CHARGER_H diff --git a/include/linux/power/sbs-battery.h b/include/linux/power/sbs-battery.h index 519b8b43239a..ccfe79783cb1 100644 --- a/include/linux/power/sbs-battery.h +++ b/include/linux/power/sbs-battery.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Gas Gauge driver for SBS Compliant Gas Gauges * * Copyright (c) 2010, NVIDIA Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef __LINUX_POWER_SBS_BATTERY_H_ diff --git a/include/linux/regulator/max8973-regulator.h b/include/linux/regulator/max8973-regulator.h index 2fcb9980262a..8313e7ed6aec 100644 --- a/include/linux/regulator/max8973-regulator.h +++ b/include/linux/regulator/max8973-regulator.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * max8973-regulator.h -- MAXIM 8973 regulator * @@ -7,21 +8,6 @@ * Copyright (C) 2012 NVIDIA Corporation * Author: Laxman Dewangan - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * */ #ifndef __LINUX_REGULATOR_MAX8973_H diff --git a/include/linux/regulator/pfuze100.h b/include/linux/regulator/pfuze100.h index 331d7d940c7a..d47e668d9ca8 100644 --- a/include/linux/regulator/pfuze100.h +++ b/include/linux/regulator/pfuze100.h @@ -1,19 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef __LINUX_REG_PFUZE100_H #define __LINUX_REG_PFUZE100_H diff --git a/include/linux/regulator/tps51632-regulator.h b/include/linux/regulator/tps51632-regulator.h index d00841e1a75a..1413d77c2fed 100644 --- a/include/linux/regulator/tps51632-regulator.h +++ b/include/linux/regulator/tps51632-regulator.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * tps51632-regulator.h -- TPS51632 regulator * @@ -7,21 +8,6 @@ * Copyright (C) 2012 NVIDIA Corporation * Author: Laxman Dewangan - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * */ #ifndef __LINUX_REGULATOR_TPS51632_H diff --git a/include/linux/regulator/tps62360.h b/include/linux/regulator/tps62360.h index a4c49394c497..94a90c06f1e5 100644 --- a/include/linux/regulator/tps62360.h +++ b/include/linux/regulator/tps62360.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * tps62360.h -- TI tps62360 * @@ -6,21 +7,6 @@ * Copyright (C) 2012 NVIDIA Corporation * Author: Laxman Dewangan - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * */ #ifndef __LINUX_REGULATOR_TPS62360_H -- cgit v1.2.3 From a636cd6c422865a74ff305039ff0f85adbe3a7bf Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sun, 19 May 2019 15:51:34 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4 Based on 1 normalized pattern(s): licensed under gplv2 or later extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 118 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Jilayne Lovejoy Reviewed-by: Steve Winslow Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154040.961286471@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/rtc/sirfsoc_rtciobrg.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rtc/sirfsoc_rtciobrg.h b/include/linux/rtc/sirfsoc_rtciobrg.h index aefd997262e4..b31f2856733d 100644 --- a/include/linux/rtc/sirfsoc_rtciobrg.h +++ b/include/linux/rtc/sirfsoc_rtciobrg.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * RTC I/O Bridge interfaces for CSR SiRFprimaII * ARM access the registers of SYSRTC, GPSRTC and PWRC through this module * * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. */ #ifndef _SIRFSOC_RTC_IOBRG_H_ #define _SIRFSOC_RTC_IOBRG_H_ -- cgit v1.2.3 From 9ab65aff02e842b09fbdcd7a7df02b63ed63442a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sun, 19 May 2019 15:51:37 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details the full gnu general public license is included in this distribution in the file called copying extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 9 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Steve Winslow Reviewed-by: Kate Stewart Reviewed-by: Jilayne Lovejoy Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.244154651@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/dmaengine.h | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index d49ec5c31944..c952f987ee57 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -1,18 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright(c) 2004 - 2006 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * The full GNU General Public License is included in this distribution in the - * file called COPYING. */ #ifndef LINUX_DMAENGINE_H #define LINUX_DMAENGINE_H -- cgit v1.2.3 From aded9cb8783c35becea1ef46f608d2a230651459 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sun, 19 May 2019 15:51:40 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 10 Based on 1 normalized pattern(s): licensed under the fsf s gnu public license v2 or later extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Jilayne Lovejoy Reviewed-by: Steve Winslow Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.526489261@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/plist.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/plist.h b/include/linux/plist.h index 9365df5a823f..66bab1bca35c 100644 --- a/include/linux/plist.h +++ b/include/linux/plist.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Descending-priority-sorted double-linked list * @@ -12,8 +13,6 @@ * Simplifications of the original code by * Oleg Nesterov * - * Licensed under the FSF's GNU Public License v2 or later. - * * Based on simple lists (include/linux/list.h). * * This is a priority-sorted list of nodes; each node has a @@ -70,7 +69,6 @@ * is lowest priority. * * No locking is done, up to the caller. - * */ #ifndef _LINUX_PLIST_H_ #define _LINUX_PLIST_H_ -- cgit v1.2.3 From 1ccea77e2a2687cae171b7987eb44730ec8c6d5f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sun, 19 May 2019 15:51:43 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Jilayne Lovejoy Reviewed-by: Steve Winslow Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/livepatch.h | 14 +------------- include/linux/microchipphy.h | 14 +------------- include/linux/platform_data/st33zp24.h | 14 +------------- 3 files changed, 3 insertions(+), 39 deletions(-) (limited to 'include/linux') diff --git a/include/linux/livepatch.h b/include/linux/livepatch.h index a14bab1a0a3e..eeba421cc671 100644 --- a/include/linux/livepatch.h +++ b/include/linux/livepatch.h @@ -1,21 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * livepatch.h - Kernel Live Patching Core * * Copyright (C) 2014 Seth Jennings * Copyright (C) 2014 SUSE - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see . */ #ifndef _LINUX_LIVEPATCH_H_ diff --git a/include/linux/microchipphy.h b/include/linux/microchipphy.h index 8c40128af240..517288da19fd 100644 --- a/include/linux/microchipphy.h +++ b/include/linux/microchipphy.h @@ -1,18 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2015 Microchip Technology - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see . */ #ifndef _MICROCHIPPHY_H diff --git a/include/linux/platform_data/st33zp24.h b/include/linux/platform_data/st33zp24.h index 6f0fb6ebd7db..61db674f36cc 100644 --- a/include/linux/platform_data/st33zp24.h +++ b/include/linux/platform_data/st33zp24.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * STMicroelectronics TPM Linux driver for TPM 1.2 ST33ZP24 * Copyright (C) 2009 - 2016 STMicroelectronics - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see . */ #ifndef __ST33ZP24_H__ #define __ST33ZP24_H__ -- cgit v1.2.3 From aaf4989bd4b1963493d7ee14eccff62d79555347 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sun, 19 May 2019 15:51:47 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 17 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 13 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Steve Winslow Reviewed-by: Jilayne Lovejoy Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154042.236620792@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/rtsx_common.h | 14 +------------- include/linux/rtsx_pci.h | 14 +------------- 2 files changed, 2 insertions(+), 26 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rtsx_common.h b/include/linux/rtsx_common.h index 443176ee1ab0..bf290ad14c57 100644 --- a/include/linux/rtsx_common.h +++ b/include/linux/rtsx_common.h @@ -1,20 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Driver for Realtek driver-based card reader * * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, see . - * * Author: * Wei WANG */ diff --git a/include/linux/rtsx_pci.h b/include/linux/rtsx_pci.h index e964bbd03fc2..f87da30a58b1 100644 --- a/include/linux/rtsx_pci.h +++ b/include/linux/rtsx_pci.h @@ -1,20 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Driver for Realtek PCI-Express card reader * * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, see . - * * Author: * Wei WANG */ -- cgit v1.2.3 From c82ee6d3beaa489058c1fe1ca710042a07df9d40 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sun, 19 May 2019 15:51:48 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program see the file copying if not write to the free software foundation 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 52 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Jilayne Lovejoy Reviewed-by: Steve Winslow Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154042.342335923@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/ata.h | 18 +----------------- include/linux/libata.h | 18 +----------------- include/linux/platform_data/ata-pxa.h | 15 +-------------- include/linux/syslog.h | 15 +-------------- 4 files changed, 4 insertions(+), 62 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ata.h b/include/linux/ata.h index 40d150ad7e07..6e67aded28f8 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -1,29 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2003-2004 Red Hat, Inc. All rights reserved. * Copyright 2003-2004 Jeff Garzik * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * * libata documentation is available via 'make {ps|pdf}docs', * as Documentation/driver-api/libata.rst * * Hardware documentation available from http://www.t13.org/ - * */ #ifndef __LINUX_ATA_H__ diff --git a/include/linux/libata.h b/include/linux/libata.h index c9419c05a90a..207e7ee764ce 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1,26 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2003-2005 Red Hat, Inc. All rights reserved. * Copyright 2003-2005 Jeff Garzik * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * * libata documentation is available via 'make {ps|pdf}docs', * as Documentation/driver-api/libata.rst - * */ #ifndef __LINUX_LIBATA_H__ diff --git a/include/linux/platform_data/ata-pxa.h b/include/linux/platform_data/ata-pxa.h index 6cf7df1d5830..0b65fd0aa509 100644 --- a/include/linux/platform_data/ata-pxa.h +++ b/include/linux/platform_data/ata-pxa.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Generic PXA PATA driver * * Copyright (C) 2010 Marek Vasut - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __MACH_PATA_PXA_H__ diff --git a/include/linux/syslog.h b/include/linux/syslog.h index e1c3632f4e81..86af908e2663 100644 --- a/include/linux/syslog.h +++ b/include/linux/syslog.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Syslog internals * * Copyright 2010 Canonical, Ltd. * Author: Kees Cook - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _LINUX_SYSLOG_H -- cgit v1.2.3 From 186bcc3dcd106dc52d706117f912054b616666e1 Mon Sep 17 00:00:00 2001 From: Jakub Sitnicki Date: Wed, 22 May 2019 12:01:42 +0200 Subject: bpf: sockmap, restore sk_write_space when psock gets dropped Once psock gets unlinked from its sock (sk_psock_drop), user-space can still trigger a call to sk->sk_write_space by setting TCP_NOTSENT_LOWAT socket option. This causes a null-ptr-deref because we try to read psock->saved_write_space from sk_psock_write_space: ================================================================== BUG: KASAN: null-ptr-deref in sk_psock_write_space+0x69/0x80 Read of size 8 at addr 00000000000001a0 by task sockmap-echo/131 CPU: 0 PID: 131 Comm: sockmap-echo Not tainted 5.2.0-rc1-00094-gf49aa1de9836 #81 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20180724_192412-buildhw-07.phx2.fedoraproject.org-1.fc29 04/01/2014 Call Trace: ? sk_psock_write_space+0x69/0x80 __kasan_report.cold.2+0x5/0x3f ? sk_psock_write_space+0x69/0x80 kasan_report+0xe/0x20 sk_psock_write_space+0x69/0x80 tcp_setsockopt+0x69a/0xfc0 ? tcp_shutdown+0x70/0x70 ? fsnotify+0x5b0/0x5f0 ? remove_wait_queue+0x90/0x90 ? __fget_light+0xa5/0xf0 __sys_setsockopt+0xe6/0x180 ? sockfd_lookup_light+0xb0/0xb0 ? vfs_write+0x195/0x210 ? ksys_write+0xc9/0x150 ? __x64_sys_read+0x50/0x50 ? __bpf_trace_x86_fpu+0x10/0x10 __x64_sys_setsockopt+0x61/0x70 do_syscall_64+0xc5/0x520 ? vmacache_find+0xc0/0x110 ? syscall_return_slowpath+0x110/0x110 ? handle_mm_fault+0xb4/0x110 ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe ? trace_hardirqs_off_caller+0x4b/0x120 ? trace_hardirqs_off_thunk+0x1a/0x3a entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f2e5e7cdcce Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b1 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 8a 11 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007ffed011b778 EFLAGS: 00000206 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2e5e7cdcce RDX: 0000000000000019 RSI: 0000000000000006 RDI: 0000000000000007 RBP: 00007ffed011b790 R08: 0000000000000004 R09: 00007f2e5e84ee80 R10: 00007ffed011b788 R11: 0000000000000206 R12: 00007ffed011b78c R13: 00007ffed011b788 R14: 0000000000000007 R15: 0000000000000068 ================================================================== Restore the saved sk_write_space callback when psock is being dropped to fix the crash. Signed-off-by: Jakub Sitnicki Signed-off-by: Daniel Borkmann --- include/linux/skmsg.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h index 178a3933a71b..50ced8aba9db 100644 --- a/include/linux/skmsg.h +++ b/include/linux/skmsg.h @@ -351,6 +351,8 @@ static inline void sk_psock_update_proto(struct sock *sk, static inline void sk_psock_restore_proto(struct sock *sk, struct sk_psock *psock) { + sk->sk_write_space = psock->saved_write_space; + if (psock->sk_proto) { sk->sk_prot = psock->sk_proto; psock->sk_proto = NULL; -- cgit v1.2.3 From f381c6a4bd0ae0fde2d6340f1b9bb0f58d915de6 Mon Sep 17 00:00:00 2001 From: Andrea Parri Date: Mon, 20 May 2019 19:23:56 +0200 Subject: bio: fix improper use of smp_mb__before_atomic() This barrier only applies to the read-modify-write operations; in particular, it does not apply to the atomic_set() primitive. Replace the barrier with an smp_mb(). Fixes: dac56212e8127 ("bio: skip atomic inc/dec of ->bi_cnt for most use cases") Cc: stable@vger.kernel.org Reported-by: "Paul E. McKenney" Reported-by: Peter Zijlstra Signed-off-by: Andrea Parri Reviewed-by: Ming Lei Cc: Jens Axboe Cc: Ming Lei Cc: linux-block@vger.kernel.org Cc: "Paul E. McKenney" Cc: Peter Zijlstra Signed-off-by: Jens Axboe --- include/linux/bio.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/bio.h b/include/linux/bio.h index ea73df36529a..0f23b5682640 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -210,7 +210,7 @@ static inline void bio_cnt_set(struct bio *bio, unsigned int count) { if (count != 1) { bio->bi_flags |= (1 << BIO_REFFED); - smp_mb__before_atomic(); + smp_mb(); } atomic_set(&bio->__bi_cnt, count); } -- cgit v1.2.3 From 6869875fbc04042ad01654591da60862706e86e3 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 21 May 2019 09:01:43 +0200 Subject: block: remove the bi_seg_{front,back}_size fields in struct bio At this point these fields aren't used for anything, so we can remove them. Reviewed-by: Ming Lei Reviewed-by: Hannes Reinecke Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/blk_types.h | 7 ------- 1 file changed, 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index be418275763c..95202f80676c 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -159,13 +159,6 @@ struct bio { */ unsigned int bi_phys_segments; - /* - * To keep track of the max segment size, we account for the - * sizes of the first and last mergeable segments in this bio. - */ - unsigned int bi_seg_front_size; - unsigned int bi_seg_back_size; - struct bvec_iter bi_iter; atomic_t __bi_remaining; -- cgit v1.2.3 From 7996a8b5511a72465b0b286763c2d8f412b8874a Mon Sep 17 00:00:00 2001 From: Bob Liu Date: Tue, 21 May 2019 11:25:55 +0800 Subject: blk-mq: fix hang caused by freeze/unfreeze sequence The following is a description of a hang in blk_mq_freeze_queue_wait(). The hang happens on attempt to freeze a queue while another task does queue unfreeze. The root cause is an incorrect sequence of percpu_ref_resurrect() and percpu_ref_kill() and as a result those two can be swapped: CPU#0 CPU#1 ---------------- ----------------- q1 = blk_mq_init_queue(shared_tags) q2 = blk_mq_init_queue(shared_tags): blk_mq_add_queue_tag_set(shared_tags): blk_mq_update_tag_set_depth(shared_tags): list_for_each_entry() blk_mq_freeze_queue(q1) > percpu_ref_kill() > blk_mq_freeze_queue_wait() blk_cleanup_queue(q1) blk_mq_freeze_queue(q1) > percpu_ref_kill() ^^^^^^ freeze_depth can't guarantee the order blk_mq_unfreeze_queue() > percpu_ref_resurrect() > blk_mq_freeze_queue_wait() ^^^^^^ Hang here!!!! This wrong sequence raises kernel warning: percpu_ref_kill_and_confirm called more than once on blk_queue_usage_counter_release! WARNING: CPU: 0 PID: 11854 at lib/percpu-refcount.c:336 percpu_ref_kill_and_confirm+0x99/0xb0 But the most unpleasant effect is a hang of a blk_mq_freeze_queue_wait(), which waits for a zero of a q_usage_counter, which never happens because percpu-ref was reinited (instead of being killed) and stays in PERCPU state forever. How to reproduce: - "insmod null_blk.ko shared_tags=1 nr_devices=0 queue_mode=2" - cpu0: python Script.py 0; taskset the corresponding process running on cpu0 - cpu1: python Script.py 1; taskset the corresponding process running on cpu1 Script.py: ------ #!/usr/bin/python3 import os import sys while True: on = "echo 1 > /sys/kernel/config/nullb/%s/power" % sys.argv[1] off = "echo 0 > /sys/kernel/config/nullb/%s/power" % sys.argv[1] os.system(on) os.system(off) ------ This bug was first reported and fixed by Roman, previous discussion: [1] Message id: 1443287365-4244-7-git-send-email-akinobu.mita@gmail.com [2] Message id: 1443563240-29306-6-git-send-email-tj@kernel.org [3] https://patchwork.kernel.org/patch/9268199/ Reviewed-by: Hannes Reinecke Reviewed-by: Ming Lei Reviewed-by: Bart Van Assche Reviewed-by: Christoph Hellwig Signed-off-by: Roman Pen Signed-off-by: Bob Liu Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 1aafeb923e7b..592669bcc536 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -542,7 +542,7 @@ struct request_queue { struct list_head unused_hctx_list; spinlock_t unused_hctx_lock; - atomic_t mq_freeze_depth; + int mq_freeze_depth; #if defined(CONFIG_BLK_DEV_BSG) struct bsg_class_device bsg_dev; @@ -554,6 +554,11 @@ struct request_queue { #endif struct rcu_head rcu_head; wait_queue_head_t mq_freeze_wq; + /* + * Protect concurrent access to q_usage_counter by + * percpu_ref_kill() and percpu_ref_reinit(). + */ + struct mutex mq_freeze_lock; struct percpu_ref q_usage_counter; struct blk_mq_tag_set *tag_set; -- cgit v1.2.3 From 465ae83692027b3dfa5571c4c908d8acef468f56 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 19:07:51 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 26 Based on 1 normalized pattern(s): gnupg is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version gnupg is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa note this code is heavily based on the gnu mp library actually it s the same code with only minor changes in the way the data is stored this is to support the abstraction of an optional secure memory allocation which may be used to avoid revealing of sensitive data due to paging etc the gnu mp library itself is published under the lgpl however i decided to publish this code under the plain gpl extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 14 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170856.639982569@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mpi.h | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mpi.h b/include/linux/mpi.h index 7cd1473c64a4..7bd6d8af0004 100644 --- a/include/linux/mpi.h +++ b/include/linux/mpi.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* mpi.h - Multi Precision Integers * Copyright (C) 1994, 1996, 1998, 1999, * 2000, 2001 Free Software Foundation, Inc. * * This file is part of GNUPG. * - * GNUPG is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * GNUPG is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - * * Note: This code is heavily based on the GNU MP Library. * Actually it's the same code with only minor changes in the * way the data is stored; this is to support the abstraction -- cgit v1.2.3 From e62d9491030613a29400f68f63f1b67c46cf2559 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 19:07:58 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 33 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa the full gnu general public license is included in this distribution in the file called copying extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 7 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Reviewed-by: Kate Stewart Reviewed-by: Michael Ellerman (powerpc) Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170857.277062491@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/dca.h | 18 +----------------- 1 file changed, 1 insertion(+), 17 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dca.h b/include/linux/dca.h index ad956c2e07a8..d6228e334f48 100644 --- a/include/linux/dca.h +++ b/include/linux/dca.h @@ -1,22 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 - * Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * The full GNU General Public License is included in this distribution in the - * file called COPYING. */ #ifndef DCA_H #define DCA_H -- cgit v1.2.3 From b4d0d230ccfb5d1a9ea85da64aa584df7c148ee9 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 19:08:01 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public licence as published by the free software foundation either version 2 of the licence or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 114 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170857.552531963@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/asn1.h | 6 +----- include/linux/asn1_ber_bytecode.h | 6 +----- include/linux/asn1_decoder.h | 6 +----- include/linux/assoc_array.h | 6 +----- include/linux/assoc_array_priv.h | 6 +----- include/linux/count_zeros.h | 6 +----- include/linux/cred.h | 6 +----- include/linux/fs_context.h | 6 +----- include/linux/fs_parser.h | 6 +----- include/linux/key-type.h | 6 +----- include/linux/keyctl.h | 6 +----- include/linux/oid_registry.h | 6 +----- include/linux/verification.h | 6 +----- 13 files changed, 13 insertions(+), 65 deletions(-) (limited to 'include/linux') diff --git a/include/linux/asn1.h b/include/linux/asn1.h index eed6982860ba..a4d0bdd10711 100644 --- a/include/linux/asn1.h +++ b/include/linux/asn1.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* ASN.1 BER/DER/CER encoding definitions * * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_ASN1_H diff --git a/include/linux/asn1_ber_bytecode.h b/include/linux/asn1_ber_bytecode.h index ab3a6c002f7b..b38361953a48 100644 --- a/include/linux/asn1_ber_bytecode.h +++ b/include/linux/asn1_ber_bytecode.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* ASN.1 BER/DER/CER parsing state machine internal definitions * * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_ASN1_BER_BYTECODE_H diff --git a/include/linux/asn1_decoder.h b/include/linux/asn1_decoder.h index fa2ff5bc0483..83f9c6e1e5e9 100644 --- a/include/linux/asn1_decoder.h +++ b/include/linux/asn1_decoder.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* ASN.1 decoder * * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_ASN1_DECODER_H diff --git a/include/linux/assoc_array.h b/include/linux/assoc_array.h index 65e3832f96b2..8b3f230ce894 100644 --- a/include/linux/assoc_array.h +++ b/include/linux/assoc_array.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Generic associative array implementation. * * See Documentation/core-api/assoc_array.rst for information. * * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_ASSOC_ARRAY_H diff --git a/include/linux/assoc_array_priv.h b/include/linux/assoc_array_priv.h index a00a06550c10..dca733ef6750 100644 --- a/include/linux/assoc_array_priv.h +++ b/include/linux/assoc_array_priv.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Private definitions for the generic associative array implementation. * * See Documentation/core-api/assoc_array.rst for information. * * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_ASSOC_ARRAY_PRIV_H diff --git a/include/linux/count_zeros.h b/include/linux/count_zeros.h index 363da78c4f64..5b8ff5ac660d 100644 --- a/include/linux/count_zeros.h +++ b/include/linux/count_zeros.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Count leading and trailing zeros functions * * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_BITOPS_COUNT_ZEROS_H_ diff --git a/include/linux/cred.h b/include/linux/cred.h index efb6edf32de7..7eb43a038330 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Credentials management - see Documentation/security/credentials.rst * * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_CRED_H diff --git a/include/linux/fs_context.h b/include/linux/fs_context.h index 1f966670c8dc..d476ff0c10df 100644 --- a/include/linux/fs_context.h +++ b/include/linux/fs_context.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Filesystem superblock creation and reconfiguration context. * * Copyright (C) 2018 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_FS_CONTEXT_H diff --git a/include/linux/fs_parser.h b/include/linux/fs_parser.h index d966f96ffe62..dee140db6240 100644 --- a/include/linux/fs_parser.h +++ b/include/linux/fs_parser.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Filesystem parameter description and parser * * Copyright (C) 2018 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_FS_PARSER_H diff --git a/include/linux/key-type.h b/include/linux/key-type.h index e49d1de0614e..331cab70db09 100644 --- a/include/linux/key-type.h +++ b/include/linux/key-type.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Definitions for key type implementations * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_KEY_TYPE_H diff --git a/include/linux/keyctl.h b/include/linux/keyctl.h index c7c48c79ce0e..5b79847207ef 100644 --- a/include/linux/keyctl.h +++ b/include/linux/keyctl.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* keyctl kernel bits * * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef __LINUX_KEYCTL_H diff --git a/include/linux/oid_registry.h b/include/linux/oid_registry.h index 7f30446348c4..657d6bf2c064 100644 --- a/include/linux/oid_registry.h +++ b/include/linux/oid_registry.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* ASN.1 Object identifier (OID) registry * * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_OID_REGISTRY_H diff --git a/include/linux/verification.h b/include/linux/verification.h index 018fb5f13d44..32d990d163c4 100644 --- a/include/linux/verification.h +++ b/include/linux/verification.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Signature verification * * Copyright (C) 2014 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_VERIFICATION_H -- cgit v1.2.3 From ea2305f6a84e87b9398e043297f7982c462abf9f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 19:08:05 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 40 Based on 1 normalized pattern(s): this is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 14 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Michael Ellerman (powerpc) Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170857.915677517@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/dma/xilinx_dma.h | 6 +----- include/linux/fsldma.h | 5 +---- 2 files changed, 2 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dma/xilinx_dma.h b/include/linux/dma/xilinx_dma.h index 5b6e61e4b3aa..0dde1a46ab75 100644 --- a/include/linux/dma/xilinx_dma.h +++ b/include/linux/dma/xilinx_dma.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Xilinx DMA Engine drivers support header file * * Copyright (C) 2010-2014 Xilinx, Inc. All rights reserved. - * - * This is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef __DMA_XILINX_DMA_H diff --git a/include/linux/fsldma.h b/include/linux/fsldma.h index b213c02963c9..c523d716ebd2 100644 --- a/include/linux/fsldma.h +++ b/include/linux/fsldma.h @@ -1,8 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* - * This is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef FSL_DMA_H -- cgit v1.2.3 From 8d7c56d08fafd55887de16bf7f9c2817a1257bab Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 19:08:10 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 45 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 11 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170858.370933192@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/ahci_platform.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ahci_platform.h b/include/linux/ahci_platform.h index eaedca5fe6fc..6782f0d45ebe 100644 --- a/include/linux/ahci_platform.h +++ b/include/linux/ahci_platform.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * AHCI SATA platform driver * @@ -5,11 +6,6 @@ * Jeff Garzik * Copyright 2010 MontaVista Software, LLC. * Anton Vorontsov - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. */ #ifndef _AHCI_PLATFORM_H -- cgit v1.2.3 From af1a8899d22c8acda5514999cd797d7139e47e56 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 19:08:12 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version you should have received a copy of the gnu general public license for example usr src linux copying if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 20 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170858.552543146@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/raid/md_u.h | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/raid/md_u.h b/include/linux/raid/md_u.h index 358c04bfbe2a..8dfec085a20e 100644 --- a/include/linux/raid/md_u.h +++ b/include/linux/raid/md_u.h @@ -1,15 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* md_u.h : user <=> kernel API between Linux raidtools and RAID drivers Copyright (C) 1998 Ingo Molnar - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - You should have received a copy of the GNU General Public License - (for example /usr/src/linux/COPYING); if not, write to the Free - Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _MD_U_H #define _MD_U_H -- cgit v1.2.3 From dd165a658d9018cf31f87d2ea2f26293f215d91d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 19:08:13 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 48 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation inc 53 temple place ste 330 boston ma 02111 1307 usa either version 2 of the license or at your option any later version incorporated herein by reference extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 13 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170858.645641371@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/raid/pq.h | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h index 605cf46c17bd..0832c9b66852 100644 --- a/include/linux/raid/pq.h +++ b/include/linux/raid/pq.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* -*- linux-c -*- ------------------------------------------------------- * * * Copyright 2003 H. Peter Anvin - All Rights Reserved * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, Inc., 53 Temple Place Ste 330, - * Boston MA 02111-1307, USA; either version 2 of the License, or - * (at your option) any later version; incorporated herein by reference. - * * ----------------------------------------------------------------------- */ #ifndef LINUX_RAID_RAID6_H -- cgit v1.2.3 From 64b70da0389ecf678ff8d0ecaf61a0b0fa1c7449 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 19:08:15 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 50 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranties or representations without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 43 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170858.826676366@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/via-core.h | 17 +---------------- include/linux/via_i2c.h | 16 +--------------- 2 files changed, 2 insertions(+), 31 deletions(-) (limited to 'include/linux') diff --git a/include/linux/via-core.h b/include/linux/via-core.h index 9c21cdf3e3b3..9e802deedb2d 100644 --- a/include/linux/via-core.h +++ b/include/linux/via-core.h @@ -1,24 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved. * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved. * Copyright 2009-2010 Jonathan Corbet * Copyright 2010 Florian Tobias Schandinat - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; - * either version 2, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even - * the implied warranty of MERCHANTABILITY or FITNESS FOR - * A PARTICULAR PURPOSE.See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef __VIA_CORE_H__ diff --git a/include/linux/via_i2c.h b/include/linux/via_i2c.h index 44532e468c05..cdcb43177131 100644 --- a/include/linux/via_i2c.h +++ b/include/linux/via_i2c.h @@ -1,22 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved. * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved. - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; - * either version 2, or (at your option) any later version. - - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even - * the implied warranty of MERCHANTABILITY or FITNESS FOR - * A PARTICULAR PURPOSE.See the GNU General Public License - * for more details. - - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef __VIA_I2C_H__ #define __VIA_I2C_H__ -- cgit v1.2.3 From 4319c7f77a7a6d1f3c54493a8fe91db500f3e990 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 09:19:01 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 60 Based on 1 normalized pattern(s): released according to the gnu gpl version 2 or any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 10 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071858.650321694@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/fmc.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fmc.h b/include/linux/fmc.h index 3dc8a1b2db7b..b355f3806f3f 100644 --- a/include/linux/fmc.h +++ b/include/linux/fmc.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2012 CERN (www.cern.ch) * Author: Alessandro Rubini * - * Released according to the GNU GPL, version 2 or any later version. - * * This work is part of the White Rabbit project, a research effort led * by CERN, the European Institute for Nuclear Research. */ -- cgit v1.2.3 From 74ba9207e1adf1966c57450340534ae9742d00af Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 09:19:02 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 441 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Michael Ellerman (powerpc) Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/bma150.h | 15 +-------------- include/linux/hwmon-sysfs.h | 15 +-------------- include/linux/hwmon-vid.h | 14 +------------- include/linux/isapnp.h | 17 +---------------- include/linux/isdn/hdlc.h | 15 +-------------- include/linux/kfifo.h | 16 +--------------- include/linux/kmod.h | 15 +-------------- include/linux/mfd/da9052/da9052.h | 16 +--------------- include/linux/mfd/da9052/pdata.h | 16 +--------------- include/linux/mfd/da9052/reg.h | 16 +--------------- include/linux/mfd/da9055/core.h | 16 +--------------- include/linux/mfd/da9055/reg.h | 16 +--------------- include/linux/mfd/wm8400-audio.h | 15 +-------------- include/linux/mfd/wm8400-private.h | 15 +-------------- include/linux/mfd/wm8400.h | 15 +-------------- include/linux/platform_data/ads1015.h | 15 +-------------- include/linux/platform_data/media/camera-pxa.h | 14 +------------- include/linux/platform_data/mtd-davinci.h | 15 +-------------- include/linux/platform_data/spi-davinci.h | 15 +-------------- include/linux/pmbus.h | 15 +-------------- include/linux/posix-clock.h | 15 +-------------- include/linux/pps-gpio.h | 16 +--------------- include/linux/pps_kernel.h | 15 +-------------- include/linux/ptp_classify.h | 15 +-------------- include/linux/ptp_clock_kernel.h | 15 +-------------- include/linux/regulator/lp3971.h | 15 +-------------- include/linux/regulator/lp3972.h | 15 +-------------- include/linux/sonypi.h | 16 +--------------- 28 files changed, 28 insertions(+), 400 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bma150.h b/include/linux/bma150.h index 97ade7cdc870..31c9e323a391 100644 --- a/include/linux/bma150.h +++ b/include/linux/bma150.h @@ -1,20 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 2011 Bosch Sensortec GmbH * Copyright (c) 2011 Unixphere - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _BMA150_H_ diff --git a/include/linux/hwmon-sysfs.h b/include/linux/hwmon-sysfs.h index 473897bbd898..cb26d02f52f3 100644 --- a/include/linux/hwmon-sysfs.h +++ b/include/linux/hwmon-sysfs.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * hwmon-sysfs.h - hardware monitoring chip driver sysfs defines * * Copyright (C) 2005 Yani Ioannou - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _LINUX_HWMON_SYSFS_H #define _LINUX_HWMON_SYSFS_H diff --git a/include/linux/hwmon-vid.h b/include/linux/hwmon-vid.h index da0a680e2f6d..9409e1d207ef 100644 --- a/include/linux/hwmon-vid.h +++ b/include/linux/hwmon-vid.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* hwmon-vid.h - VID/VRM/VRD voltage conversions @@ -5,19 +6,6 @@ Copyright (c) 2002 Mark D. Studebaker With assistance from Trent Piepho - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _LINUX_HWMON_VID_H diff --git a/include/linux/isapnp.h b/include/linux/isapnp.h index 3c77bf9b1efd..11edb2109a68 100644 --- a/include/linux/isapnp.h +++ b/include/linux/isapnp.h @@ -1,22 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * ISA Plug & Play support * Copyright (c) by Jaroslav Kysela - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef LINUX_ISAPNP_H diff --git a/include/linux/isdn/hdlc.h b/include/linux/isdn/hdlc.h index 96521370c782..fe2c1279c139 100644 --- a/include/linux/isdn/hdlc.h +++ b/include/linux/isdn/hdlc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * hdlc.h -- General purpose ISDN HDLC decoder. * @@ -10,20 +11,6 @@ * 2002 Wolfgang Mües * 2001 Frode Isaksen * 2001 Kai Germaschewski - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __ISDNHDLC_H__ diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h index 89fc8dc7bf38..fc4b0b10210f 100644 --- a/include/linux/kfifo.h +++ b/include/linux/kfifo.h @@ -1,22 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * A generic kernel FIFO implementation * * Copyright (C) 2013 Stefani Seibold - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef _LINUX_KFIFO_H diff --git a/include/linux/kmod.h b/include/linux/kmod.h index 40c89ad4bea6..68f69362d427 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef __LINUX_KMOD_H__ #define __LINUX_KMOD_H__ /* * include/linux/kmod.h - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include diff --git a/include/linux/mfd/da9052/da9052.h b/include/linux/mfd/da9052/da9052.h index ae5b663836d0..76feb3a7066d 100644 --- a/include/linux/mfd/da9052/da9052.h +++ b/include/linux/mfd/da9052/da9052.h @@ -1,24 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * da9052 declarations for DA9052 PMICs. * * Copyright(c) 2011 Dialog Semiconductor Ltd. * * Author: David Dajun Chen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef __MFD_DA9052_DA9052_H diff --git a/include/linux/mfd/da9052/pdata.h b/include/linux/mfd/da9052/pdata.h index 62c5c3c2992e..60fcab32542d 100644 --- a/include/linux/mfd/da9052/pdata.h +++ b/include/linux/mfd/da9052/pdata.h @@ -1,24 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Platform data declarations for DA9052 PMICs. * * Copyright(c) 2011 Dialog Semiconductor Ltd. * * Author: David Dajun Chen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef __MFD_DA9052_PDATA_H__ diff --git a/include/linux/mfd/da9052/reg.h b/include/linux/mfd/da9052/reg.h index 76780ea8849c..752b20b16dc3 100644 --- a/include/linux/mfd/da9052/reg.h +++ b/include/linux/mfd/da9052/reg.h @@ -1,24 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Register declarations for DA9052 PMICs. * * Copyright(c) 2011 Dialog Semiconductor Ltd. * * Author: David Dajun Chen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef __LINUX_MFD_DA9052_REG_H diff --git a/include/linux/mfd/da9055/core.h b/include/linux/mfd/da9055/core.h index 5dc743fd63a6..a96eba52c4d6 100644 --- a/include/linux/mfd/da9055/core.h +++ b/include/linux/mfd/da9055/core.h @@ -1,24 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * da9055 declarations for DA9055 PMICs. * * Copyright(c) 2012 Dialog Semiconductor Ltd. * * Author: David Dajun Chen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef __DA9055_CORE_H diff --git a/include/linux/mfd/da9055/reg.h b/include/linux/mfd/da9055/reg.h index 2b592e072dbf..54a717b6c3de 100644 --- a/include/linux/mfd/da9055/reg.h +++ b/include/linux/mfd/da9055/reg.h @@ -1,24 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * DA9055 declarations for DA9055 PMICs. * * Copyright(c) 2012 Dialog Semiconductor Ltd. * * Author: David Dajun Chen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef __DA9055_REG_H diff --git a/include/linux/mfd/wm8400-audio.h b/include/linux/mfd/wm8400-audio.h index e06ed3eb1d0a..d47bdcc7a765 100644 --- a/include/linux/mfd/wm8400-audio.h +++ b/include/linux/mfd/wm8400-audio.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * wm8400 private definitions for audio * * Copyright 2008 Wolfson Microelectronics plc - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __LINUX_MFD_WM8400_AUDIO_H diff --git a/include/linux/mfd/wm8400-private.h b/include/linux/mfd/wm8400-private.h index 43d0d307e2e3..bc8c2ca6dc70 100644 --- a/include/linux/mfd/wm8400-private.h +++ b/include/linux/mfd/wm8400-private.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * wm8400 private definitions. * * Copyright 2008 Wolfson Microelectronics plc - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __LINUX_MFD_WM8400_PRIV_H diff --git a/include/linux/mfd/wm8400.h b/include/linux/mfd/wm8400.h index b46b566ac1ac..a812d89e7cb3 100644 --- a/include/linux/mfd/wm8400.h +++ b/include/linux/mfd/wm8400.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * wm8400 client interface * * Copyright 2008 Wolfson Microelectronics plc - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __LINUX_MFD_WM8400_H diff --git a/include/linux/platform_data/ads1015.h b/include/linux/platform_data/ads1015.h index d5aa2a045669..4cc9ffcafcbf 100644 --- a/include/linux/platform_data/ads1015.h +++ b/include/linux/platform_data/ads1015.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Platform Data for ADS1015 12-bit 4-input ADC * (C) Copyright 2010 * Dirk Eibach, Guntermann & Drunck GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef LINUX_ADS1015_H diff --git a/include/linux/platform_data/media/camera-pxa.h b/include/linux/platform_data/media/camera-pxa.h index ce5d90e1a6e4..846a47b8c540 100644 --- a/include/linux/platform_data/media/camera-pxa.h +++ b/include/linux/platform_data/media/camera-pxa.h @@ -1,22 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* camera.h - PXA camera driver header file Copyright (C) 2003, Intel Corporation Copyright (C) 2008, Guennadi Liakhovetski - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __ASM_ARCH_CAMERA_H_ diff --git a/include/linux/platform_data/mtd-davinci.h b/include/linux/platform_data/mtd-davinci.h index 1bbfa27cccb4..08e639e047e5 100644 --- a/include/linux/platform_data/mtd-davinci.h +++ b/include/linux/platform_data/mtd-davinci.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * mach-davinci/nand.h * @@ -9,20 +10,6 @@ * Dirk Behme * * -------------------------------------------------------------------------- - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __ARCH_ARM_DAVINCI_NAND_H diff --git a/include/linux/platform_data/spi-davinci.h b/include/linux/platform_data/spi-davinci.h index 0638fb6353bc..2cb5cc70fd9d 100644 --- a/include/linux/platform_data/spi-davinci.h +++ b/include/linux/platform_data/spi-davinci.h @@ -1,19 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2009 Texas Instruments. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __ARCH_ARM_DAVINCI_SPI_H diff --git a/include/linux/pmbus.h b/include/linux/pmbus.h index ee3c2aba2a8e..08468fca5ea2 100644 --- a/include/linux/pmbus.h +++ b/include/linux/pmbus.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Hardware monitoring driver for PMBus devices * * Copyright (c) 2010, 2011 Ericsson AB. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _PMBUS_H_ diff --git a/include/linux/posix-clock.h b/include/linux/posix-clock.h index 18674d7d5b1c..fe6cfdcfbc26 100644 --- a/include/linux/posix-clock.h +++ b/include/linux/posix-clock.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * posix-clock.h - support for dynamic clock devices * * Copyright (C) 2010 OMICRON electronics GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _LINUX_POSIX_CLOCK_H_ #define _LINUX_POSIX_CLOCK_H_ diff --git a/include/linux/pps-gpio.h b/include/linux/pps-gpio.h index 44171e6b7197..7bf49908be06 100644 --- a/include/linux/pps-gpio.h +++ b/include/linux/pps-gpio.h @@ -1,22 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * pps-gpio.h -- PPS client for GPIOs * - * * Copyright (C) 2011 James Nuss - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _PPS_GPIO_H diff --git a/include/linux/pps_kernel.h b/include/linux/pps_kernel.h index 80a980cc8d95..78c8ac4951b5 100644 --- a/include/linux/pps_kernel.h +++ b/include/linux/pps_kernel.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * PPS API kernel header * * Copyright (C) 2009 Rodolfo Giometti - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef LINUX_PPS_KERNEL_H diff --git a/include/linux/ptp_classify.h b/include/linux/ptp_classify.h index 059242030631..dd00fa41f7e7 100644 --- a/include/linux/ptp_classify.h +++ b/include/linux/ptp_classify.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * PTP 1588 support * * This file implements a BPF that recognizes PTP event messages. * * Copyright (C) 2010 OMICRON electronics GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _PTP_CLASSIFY_H_ diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h index 7121bbe76979..28eb9c792522 100644 --- a/include/linux/ptp_clock_kernel.h +++ b/include/linux/ptp_clock_kernel.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * PTP 1588 clock support * * Copyright (C) 2010 OMICRON electronics GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _PTP_CLOCK_KERNEL_H_ diff --git a/include/linux/regulator/lp3971.h b/include/linux/regulator/lp3971.h index 61401649fe7d..0522e82d4716 100644 --- a/include/linux/regulator/lp3971.h +++ b/include/linux/regulator/lp3971.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * National Semiconductors LP3971 PMIC chip client interface * @@ -5,20 +6,6 @@ * Author: Marek Szyprowski * * Based on wm8400.h - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __LINUX_REGULATOR_LP3971_H diff --git a/include/linux/regulator/lp3972.h b/include/linux/regulator/lp3972.h index 9bb7389b7a1e..160a3def317f 100644 --- a/include/linux/regulator/lp3972.h +++ b/include/linux/regulator/lp3972.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * National Semiconductors LP3972 PMIC chip client interface * * Based on lp3971.h - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __LINUX_REGULATOR_LP3972_H diff --git a/include/linux/sonypi.h b/include/linux/sonypi.h index 0b7cc265cc0b..50e48e94ade2 100644 --- a/include/linux/sonypi.h +++ b/include/linux/sonypi.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Sony Programmable I/O Control Device driver for VAIO * @@ -16,21 +17,6 @@ * Copyright (C) 2000 Andrew Tridgell * * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef _SONYPI_H_ #define _SONYPI_H_ -- cgit v1.2.3 From 3f5296f0e86d6acc92535e44b71945255c28ce5f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 09:19:10 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 69 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa please note that the gpl allows you to use the driver not the radio in order to use the radio you need a license from the communications authority of your country extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 7 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071859.472520794@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/yam.h | 17 +---------------- 1 file changed, 1 insertion(+), 16 deletions(-) (limited to 'include/linux') diff --git a/include/linux/yam.h b/include/linux/yam.h index 512cdc2fb80f..a29b04fa1e66 100644 --- a/include/linux/yam.h +++ b/include/linux/yam.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /*****************************************************************************/ /* @@ -6,25 +7,9 @@ * Copyright (C) 1998 Frederic Rible F1OAT (frible@teaser.fr) * Adapted from baycom.c driver written by Thomas Sailer (sailer@ife.ee.ethz.ch) * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * * Please note that the GPL allows you to use the driver, NOT the radio. * In order to use the radio, you need a license from the communications * authority of your country. - * - * */ /*****************************************************************************/ -- cgit v1.2.3 From c51cb3f554ec1297d92ad9c0bb626a204d4f8a39 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 20 May 2019 09:19:12 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 71 Based on 1 normalized pattern(s): licensed under the gplv2 or later extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 5 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071859.659568621@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/platform_data/at91_adc.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/at91_adc.h b/include/linux/platform_data/at91_adc.h index 7819fc787731..f20eaeb827ce 100644 --- a/include/linux/platform_data/at91_adc.h +++ b/include/linux/platform_data/at91_adc.h @@ -1,7 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2011 Free Electrons - * - * Licensed under the GPLv2 or later. */ #ifndef _AT91_ADC_H_ -- cgit v1.2.3 From d691005856b059758b0d2d8454c2a6b251def18d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 22 May 2019 09:51:29 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 83 Based on 1 normalized pattern(s): this file is part of the linux kernel and is made available under the terms of the gnu general public license version 2 or at your option any later version incorporated herein by reference extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 18 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Armijn Hemel Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520075211.321157221@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/auto_dev-ioctl.h | 5 +---- include/linux/auto_fs.h | 5 +---- include/linux/devpts_fs.h | 5 +---- include/linux/jbd2.h | 5 +---- 4 files changed, 4 insertions(+), 16 deletions(-) (limited to 'include/linux') diff --git a/include/linux/auto_dev-ioctl.h b/include/linux/auto_dev-ioctl.h index 28c15050ebe6..6e1ca6f95f80 100644 --- a/include/linux/auto_dev-ioctl.h +++ b/include/linux/auto_dev-ioctl.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2008 Red Hat, Inc. All rights reserved. * Copyright 2008 Ian Kent - * - * This file is part of the Linux kernel and is made available under - * the terms of the GNU General Public License, version 2, or at your - * option, any later version, incorporated herein by reference. */ #ifndef _LINUX_AUTO_DEV_IOCTL_H diff --git a/include/linux/auto_fs.h b/include/linux/auto_fs.h index b8f814c95cf5..893f952ca40c 100644 --- a/include/linux/auto_fs.h +++ b/include/linux/auto_fs.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 1997 Transmeta Corporation - All Rights Reserved - * - * This file is part of the Linux kernel and is made available under - * the terms of the GNU General Public License, version 2, or at your - * option, any later version, incorporated herein by reference. */ #ifndef _LINUX_AUTO_FS_H diff --git a/include/linux/devpts_fs.h b/include/linux/devpts_fs.h index 100cb4343763..45f746a48dcd 100644 --- a/include/linux/devpts_fs.h +++ b/include/linux/devpts_fs.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* -*- linux-c -*- --------------------------------------------------------- * * * linux/include/linux/devpts_fs.h * * Copyright 1998-2004 H. Peter Anvin -- All Rights Reserved * - * This file is part of the Linux kernel and is made available under - * the terms of the GNU General Public License, version 2, or at your - * option, any later version, incorporated herein by reference. - * * ------------------------------------------------------------------------- */ #ifndef _LINUX_DEVPTS_FS_H diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 6c9870e16b19..5c04181b7c6d 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * linux/include/linux/jbd2.h * @@ -5,10 +6,6 @@ * * Copyright 1998-2000 Red Hat, Inc --- All Rights Reserved * - * This file is part of the Linux kernel and is made available under - * the terms of the GNU General Public License, version 2, or at your - * option, any later version, incorporated herein by reference. - * * Definitions for transaction data structures for the buffer cache * filesystem journaling support. */ -- cgit v1.2.3 From c6ae4c04a861dac4d174fd3e90128d5232c8661b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 22 May 2019 09:51:37 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 91 Based on 1 normalized pattern(s): is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version [drbd] is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with [drbd] see the file copying if not write to the free software foundation 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 16 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520075212.050796421@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/drbd.h | 14 +------------- include/linux/lru_cache.h | 14 +------------- 2 files changed, 2 insertions(+), 26 deletions(-) (limited to 'include/linux') diff --git a/include/linux/drbd.h b/include/linux/drbd.h index a19d98367f08..5755537b51b1 100644 --- a/include/linux/drbd.h +++ b/include/linux/drbd.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* drbd.h Kernel module for 2.6.x Kernels @@ -8,19 +9,6 @@ Copyright (C) 2001-2008, Philipp Reisner . Copyright (C) 2001-2008, Lars Ellenberg . - drbd is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - drbd is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with drbd; see the file COPYING. If not, write to - the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef DRBD_H diff --git a/include/linux/lru_cache.h b/include/linux/lru_cache.h index 04fc6e6c7ff0..429d67d815ce 100644 --- a/include/linux/lru_cache.h +++ b/include/linux/lru_cache.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* lru_cache.c @@ -7,19 +8,6 @@ Copyright (C) 2003-2008, Philipp Reisner . Copyright (C) 2003-2008, Lars Ellenberg . - drbd is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - drbd is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with drbd; see the file COPYING. If not, write to - the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ -- cgit v1.2.3 From 8607a96520b602f49f2c8cd1399dd83e64c524b9 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 22 May 2019 09:51:44 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 98 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your optional any later version of the license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520075212.713472955@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/dma-contiguous.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dma-contiguous.h b/include/linux/dma-contiguous.h index f247e8aa5e3d..6665fa03c0d1 100644 --- a/include/linux/dma-contiguous.h +++ b/include/linux/dma-contiguous.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef __LINUX_CMA_H #define __LINUX_CMA_H @@ -7,11 +8,6 @@ * Written by: * Marek Szyprowski * Michal Nazarewicz - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License or (at your optional) any later version of the license. */ /* -- cgit v1.2.3 From fd534e9b5fdcf9bab33c03cb3ade1a1ae5b23c20 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 23 May 2019 11:14:39 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 50 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091649.499889647@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mtd/bbm.h | 16 +--------------- include/linux/mtd/blktrans.h | 16 +--------------- include/linux/mtd/cfi.h | 16 +--------------- include/linux/mtd/cfi_endian.h | 16 +--------------- include/linux/mtd/concat.h | 16 +--------------- include/linux/mtd/doc2000.h | 16 +--------------- include/linux/mtd/flashchip.h | 16 +--------------- include/linux/mtd/gen_probe.h | 16 +--------------- include/linux/mtd/map.h | 16 +--------------- include/linux/mtd/mtd.h | 16 +--------------- include/linux/mtd/nftl.h | 16 +--------------- include/linux/platform_data/media/camera-mx2.h | 15 +-------------- include/linux/vlynq.h | 15 +-------------- 13 files changed, 13 insertions(+), 193 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h index 010bc5544c54..886e30441c90 100644 --- a/include/linux/mtd/bbm.h +++ b/include/linux/mtd/bbm.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * NAND family Bad Block Management (BBM) header file * - Bad Block Table (BBT) implementation @@ -7,21 +8,6 @@ * * Copyright © 2000-2005 * Thomas Gleixner - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ #ifndef __LINUX_MTD_BBM_H #define __LINUX_MTD_BBM_H diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h index 1d3ade69d39a..3c668cb1e344 100644 --- a/include/linux/mtd/blktrans.h +++ b/include/linux/mtd/blktrans.h @@ -1,20 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright © 2003-2010 David Woodhouse - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ #ifndef __MTD_TRANS_H__ diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index cbf77168658c..208c87cf2e3e 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -1,20 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright © 2000-2010 David Woodhouse et al. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ #ifndef __MTD_CFI_H__ diff --git a/include/linux/mtd/cfi_endian.h b/include/linux/mtd/cfi_endian.h index b97a625071f8..5275118aa449 100644 --- a/include/linux/mtd/cfi_endian.h +++ b/include/linux/mtd/cfi_endian.h @@ -1,20 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright © 2001-2010 David Woodhouse - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ #include diff --git a/include/linux/mtd/concat.h b/include/linux/mtd/concat.h index ccdbe93a909c..d6f653e07426 100644 --- a/include/linux/mtd/concat.h +++ b/include/linux/mtd/concat.h @@ -1,22 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * MTD device concatenation layer definitions * * Copyright © 2002 Robert Kaiser - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ #ifndef MTD_CONCAT_H diff --git a/include/linux/mtd/doc2000.h b/include/linux/mtd/doc2000.h index 407d1e556c39..1b7b0ee070ca 100644 --- a/include/linux/mtd/doc2000.h +++ b/include/linux/mtd/doc2000.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Linux driver for Disk-On-Chip devices * @@ -5,21 +6,6 @@ * Copyright © 1999-2010 David Woodhouse * Copyright © 2002-2003 Greg Ungerer * Copyright © 2002-2003 SnapGear Inc - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ #ifndef __MTD_DOC2000_H__ diff --git a/include/linux/mtd/flashchip.h b/include/linux/mtd/flashchip.h index 3529683f691e..ecc88a41792a 100644 --- a/include/linux/mtd/flashchip.h +++ b/include/linux/mtd/flashchip.h @@ -1,21 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright © 2000 Red Hat UK Limited * Copyright © 2000-2010 David Woodhouse - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ #ifndef __MTD_FLASHCHIP_H__ diff --git a/include/linux/mtd/gen_probe.h b/include/linux/mtd/gen_probe.h index 2c456054fded..6bd0b30d5935 100644 --- a/include/linux/mtd/gen_probe.h +++ b/include/linux/mtd/gen_probe.h @@ -1,21 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright © 2001 Red Hat UK Limited * Copyright © 2001-2010 David Woodhouse - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ #ifndef __LINUX_MTD_GEN_PROBE_H__ diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h index 01b990e4b228..b4fa92a6e44b 100644 --- a/include/linux/mtd/map.h +++ b/include/linux/mtd/map.h @@ -1,20 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright © 2000-2010 David Woodhouse et al. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ /* Overhauled routines for dealing with different mmap regions of flash */ diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 677768b21a1d..936a3fdb48b5 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -1,20 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright © 1999-2010 David Woodhouse et al. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ #ifndef __MTD_MTD_H__ diff --git a/include/linux/mtd/nftl.h b/include/linux/mtd/nftl.h index 044daa02b8ff..4423d3b385b1 100644 --- a/include/linux/mtd/nftl.h +++ b/include/linux/mtd/nftl.h @@ -1,20 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright © 1999-2010 David Woodhouse - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ #ifndef __MTD_NFTL_H__ diff --git a/include/linux/platform_data/media/camera-mx2.h b/include/linux/platform_data/media/camera-mx2.h index 7ded6f1f74bc..8cfa76b6e1e1 100644 --- a/include/linux/platform_data/media/camera-mx2.h +++ b/include/linux/platform_data/media/camera-mx2.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * mx2-cam.h - i.MX27/i.MX25 camera driver header file * * Copyright (C) 2003, Intel Corporation * Copyright (C) 2008, Sascha Hauer * Copyright (C) 2010, Baruch Siach - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef __MACH_MX2_CAM_H_ diff --git a/include/linux/vlynq.h b/include/linux/vlynq.h index 017d4a53d55e..e9c0cd36c48a 100644 --- a/include/linux/vlynq.h +++ b/include/linux/vlynq.h @@ -1,19 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2006, 2007 Eugene Konev - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef __VLYNQ_H__ -- cgit v1.2.3 From 47505b8bcfcffffe878ea1fee412922f3bfd7262 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 23 May 2019 11:14:41 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 104 Based on 1 normalized pattern(s): this sctp implementation is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this sctp implementation is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with gnu cc see the file copying if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 42 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091649.683323110@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/sctp.h | 17 +---------------- 1 file changed, 1 insertion(+), 16 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sctp.h b/include/linux/sctp.h index 83d94341e003..8ccd82105de8 100644 --- a/include/linux/sctp.h +++ b/include/linux/sctp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* SCTP kernel reference Implementation * (C) Copyright IBM Corp. 2001, 2004 * Copyright (c) 1999-2000 Cisco, Inc. @@ -10,22 +11,6 @@ * * Various protocol defined structures. * - * This SCTP implementation is free software; - * you can redistribute it and/or modify it under the terms of - * the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This SCTP implementation is distributed in the hope that it - * will be useful, but WITHOUT ANY WARRANTY; without even the implied - * ************************ - * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU CC; see the file COPYING. If not, see - * . - * * Please send any bug reports or fixes you make to the * email address(es): * lksctp developers -- cgit v1.2.3 From 3e0a4e85803345e31ae2d0009bedf252e43278cb Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 23 May 2019 11:14:55 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 44 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091651.032047323@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/apm_bios.h | 11 +---------- include/linux/toshiba.h | 12 +----------- 2 files changed, 2 insertions(+), 21 deletions(-) (limited to 'include/linux') diff --git a/include/linux/apm_bios.h b/include/linux/apm_bios.h index 9c3a87184f48..7554192c3ae3 100644 --- a/include/linux/apm_bios.h +++ b/include/linux/apm_bios.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Include file for the interface to an APM BIOS * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au) - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. */ #ifndef _LINUX_APM_H #define _LINUX_APM_H diff --git a/include/linux/toshiba.h b/include/linux/toshiba.h index 915c3bb164ac..2e0b7dd1b57b 100644 --- a/include/linux/toshiba.h +++ b/include/linux/toshiba.h @@ -1,20 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* toshiba.h -- Linux driver for accessing the SMM on Toshiba laptops * * Copyright (c) 1996-2000 Jonathan A. Buzzard (jonathan@buzzard.org.uk) * * Thanks to Juergen Heinzl for the pointers * on making sure the structure is aligned and packed. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * */ #ifndef _LINUX_TOSHIBA_H #define _LINUX_TOSHIBA_H -- cgit v1.2.3 From 588cb88cedd56cb8272c312aac59b5e204f036a7 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 23 May 2019 11:14:57 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 120 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see the file copying or write to the free software foundation inc extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 12 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091651.231300438@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/libgcc.h | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) (limited to 'include/linux') diff --git a/include/linux/libgcc.h b/include/linux/libgcc.h index 32e1e0f4b2d0..b8dc75f0c830 100644 --- a/include/linux/libgcc.h +++ b/include/linux/libgcc.h @@ -1,19 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/lib/libgcc.h - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see the file COPYING, or write - * to the Free Software Foundation, Inc. */ #ifndef __LIB_LIBGCC_H -- cgit v1.2.3 From f4bcf14e3997a422169e5a661fa811868ca221d8 Mon Sep 17 00:00:00 2001 From: Maxime Chevallier Date: Fri, 24 May 2019 12:05:30 +0200 Subject: net: ethtool: Document get_rxfh_context and set_rxfh_context ethtool ops ethtool ops get_rxfh_context and set_rxfh_context are used to create, remove and access parameters associated to RSS contexts, in a similar fashion to get_rxfh and set_rxfh. Add a small descritopn of these callbacks in the struct ethtool_ops doc. Signed-off-by: Maxime Chevallier Signed-off-by: David S. Miller --- include/linux/ethtool.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index e6ebc9761822..95991e4300bf 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -260,6 +260,15 @@ bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32, * will remain unchanged. * Returns a negative error code or zero. An error code must be returned * if at least one unsupported change was requested. + * @get_rxfh_context: Get the contents of the RX flow hash indirection table, + * hash key, and/or hash function assiciated to the given rss context. + * Returns a negative error code or zero. + * @set_rxfh_context: Create, remove and configure RSS contexts. Allows setting + * the contents of the RX flow hash indirection table, hash key, and/or + * hash function associated to the given context. Arguments which are set + * to %NULL or zero will remain unchanged. + * Returns a negative error code or zero. An error code must be returned + * if at least one unsupported change was requested. * @get_channels: Get number of channels. * @set_channels: Set number of channels. Returns a negative error code or * zero. -- cgit v1.2.3 From bb1869012d7b78d1474808cb4c8bd8b272645876 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 16 May 2019 12:43:19 +0200 Subject: ACPI: PM: Call pm_set_suspend_via_firmware() during hibernation On systems with ACPI platform firmware the last stage of hibernation is analogous to system suspend to S3 (suspend-to-RAM), so it should be handled analogously. In particular, pm_suspend_via_firmware() should return 'true' in that stage to let the callers of it know that control will be passed to the platform firmware going forward, so pm_set_suspend_via_firmware() needs to be called then in analogy with acpi_suspend_begin(). However, the platform hibernation ->begin() callback is invoked during the "freeze" transition (before creating a snapshot image of system memory) as well as during the "hibernate" transition which is the last stage of it and pm_set_suspend_via_firmware() should be invoked by that callback in the latter stage only. In order to implement that redefine the hibernation ->begin() callback to take a pm_message_t argument to indicate which stage of hibernation is taking place and rework acpi_hibernation_begin() and acpi_hibernation_begin_old() to take it into account as needed. Signed-off-by: Rafael J. Wysocki --- include/linux/suspend.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 6b3ea9ea6a9e..4a2ffd678887 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -359,7 +359,7 @@ extern void mark_free_pages(struct zone *zone); * platforms which require special recovery actions in that situation. */ struct platform_hibernation_ops { - int (*begin)(void); + int (*begin)(pm_message_t stage); void (*end)(void); int (*pre_snapshot)(void); void (*finish)(void); -- cgit v1.2.3 From d491f2b75237ef37d8867830ab7fad8d9659e853 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 17 May 2019 11:08:50 +0200 Subject: PCI: PM: Avoid possible suspend-to-idle issue If a PCI driver leaves the device handled by it in D0 and calls pci_save_state() on the device in its ->suspend() or ->suspend_late() callback, it can expect the device to stay in D0 over the whole s2idle cycle. However, that may not be the case if there is a spurious wakeup while the system is suspended, because in that case pci_pm_suspend_noirq() will run again after pci_pm_resume_noirq() which calls pci_restore_state(), via pci_pm_default_resume_early(), so state_saved is cleared and the second iteration of pci_pm_suspend_noirq() will invoke pci_prepare_to_sleep() which may change the power state of the device. To avoid that, add a new internal flag, skip_bus_pm, that will be set by pci_pm_suspend_noirq() when it runs for the first time during the given system suspend-resume cycle if the state of the device has been saved already and the device is still in D0. Setting that flag will cause the next iterations of pci_pm_suspend_noirq() to set state_saved for pci_pm_resume_noirq(), so that it always restores the device state from the originally saved data, and avoid calling pci_prepare_to_sleep() for the device. Fixes: 33e4f80ee69b ("ACPI / PM: Ignore spurious SCI wakeups from suspend-to-idle") Signed-off-by: Rafael J. Wysocki Reviewed-by: Keith Busch Reviewed-by: Mika Westerberg --- include/linux/pci.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pci.h b/include/linux/pci.h index 4a5a84d7bdd4..dd436da7eccc 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -344,6 +344,7 @@ struct pci_dev { D3cold, not set for devices powered on/off by the corresponding bridge */ + unsigned int skip_bus_pm:1; /* Internal: Skip bus-level PM */ unsigned int ignore_hotplug:1; /* Ignore hotplug events */ unsigned int hotplug_user_indicators:1; /* SlotCtl indicators controlled exclusively by -- cgit v1.2.3 From 18fa84a2db0e15b02baa5d94bdb5bd509175d2f6 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 29 May 2019 13:46:25 -0700 Subject: cgroup: Use css_tryget() instead of css_tryget_online() in task_get_css() A PF_EXITING task can stay associated with an offline css. If such task calls task_get_css(), it can get stuck indefinitely. This can be triggered by BSD process accounting which writes to a file with PF_EXITING set when racing against memcg disable as in the backtrace at the end. After this change, task_get_css() may return a css which was already offline when the function was called. None of the existing users are affected by this change. INFO: rcu_sched self-detected stall on CPU INFO: rcu_sched detected stalls on CPUs/tasks: ... NMI backtrace for cpu 0 ... Call Trace: dump_stack+0x46/0x68 nmi_cpu_backtrace.cold.2+0x13/0x57 nmi_trigger_cpumask_backtrace+0xba/0xca rcu_dump_cpu_stacks+0x9e/0xce rcu_check_callbacks.cold.74+0x2af/0x433 update_process_times+0x28/0x60 tick_sched_timer+0x34/0x70 __hrtimer_run_queues+0xee/0x250 hrtimer_interrupt+0xf4/0x210 smp_apic_timer_interrupt+0x56/0x110 apic_timer_interrupt+0xf/0x20 RIP: 0010:balance_dirty_pages_ratelimited+0x28f/0x3d0 ... btrfs_file_write_iter+0x31b/0x563 __vfs_write+0xfa/0x140 __kernel_write+0x4f/0x100 do_acct_process+0x495/0x580 acct_process+0xb9/0xdb do_exit+0x748/0xa00 do_group_exit+0x3a/0xa0 get_signal+0x254/0x560 do_signal+0x23/0x5c0 exit_to_usermode_loop+0x5d/0xa0 prepare_exit_to_usermode+0x53/0x80 retint_user+0x8/0x8 Signed-off-by: Tejun Heo Cc: stable@vger.kernel.org # v4.2+ Fixes: ec438699a9ae ("cgroup, block: implement task_get_css() and use it in bio_associate_current()") --- include/linux/cgroup.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index c0077adeea83..a7e4611e20c8 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -487,7 +487,7 @@ static inline struct cgroup_subsys_state *task_css(struct task_struct *task, * * Find the css for the (@task, @subsys_id) combination, increment a * reference on and return it. This function is guaranteed to return a - * valid css. + * valid css. The returned css may already have been offlined. */ static inline struct cgroup_subsys_state * task_get_css(struct task_struct *task, int subsys_id) @@ -497,7 +497,13 @@ task_get_css(struct task_struct *task, int subsys_id) rcu_read_lock(); while (true) { css = task_css(task, subsys_id); - if (likely(css_tryget_online(css))) + /* + * Can't use css_tryget_online() here. A task which has + * PF_EXITING set may stay associated with an offline css. + * If such task calls this function, css_tryget_online() + * will keep failing. + */ + if (likely(css_tryget(css))) break; cpu_relax(); } -- cgit v1.2.3 From 328970de0e39d596e0ef44080e7642224b29ecde Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 24 May 2019 12:04:05 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 145 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 021110 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 84 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190524100844.756442981@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/configfs.h | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) (limited to 'include/linux') diff --git a/include/linux/configfs.h b/include/linux/configfs.h index 90b90f8baf99..fa9490a8874c 100644 --- a/include/linux/configfs.h +++ b/include/linux/configfs.h @@ -1,23 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* -*- mode: c; c-basic-offset: 8; -*- * vim: noexpandtab sw=8 ts=8 sts=0: * * configfs.h - definitions for the device driver filesystem * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. - * * Based on sysfs: * sysfs is Copyright (C) 2001, 2002, 2003 Patrick Mochel * -- cgit v1.2.3 From 80503b23b23b5b2228d8750b786eb182f2fa28d2 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 24 May 2019 12:04:09 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149 Based on 1 normalized pattern(s): licensed under the gpl 2 or later extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 82 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190524100845.150836982@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/iio/buffer-dmaengine.h | 3 +-- include/linux/iio/dac/max517.h | 3 +-- include/linux/iio/dac/mcp4725.h | 3 +-- include/linux/iio/imu/adis.h | 3 +-- include/linux/input/ad714x.h | 3 +-- include/linux/input/adxl34x.h | 3 +-- include/linux/mfd/adp5520.h | 3 +-- include/linux/platform_data/ad7887.h | 3 +-- include/linux/platform_data/adau17x1.h | 3 +-- include/linux/platform_data/adp5588.h | 3 +-- include/linux/platform_data/adp8860.h | 3 +-- include/linux/platform_data/adp8870.h | 3 +-- include/linux/platform_data/wiznet.h | 3 +-- 13 files changed, 13 insertions(+), 26 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iio/buffer-dmaengine.h b/include/linux/iio/buffer-dmaengine.h index 5dcddf427bb0..b3a57444a886 100644 --- a/include/linux/iio/buffer-dmaengine.h +++ b/include/linux/iio/buffer-dmaengine.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2014-2015 Analog Devices Inc. * Author: Lars-Peter Clausen - * - * Licensed under the GPL-2 or later. */ #ifndef __IIO_DMAENGINE_H__ diff --git a/include/linux/iio/dac/max517.h b/include/linux/iio/dac/max517.h index 7668716cd73c..4923645a18fd 100644 --- a/include/linux/iio/dac/max517.h +++ b/include/linux/iio/dac/max517.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * MAX517 DAC driver * * Copyright 2011 Roland Stigge - * - * Licensed under the GPL-2 or later. */ #ifndef IIO_DAC_MAX517_H_ #define IIO_DAC_MAX517_H_ diff --git a/include/linux/iio/dac/mcp4725.h b/include/linux/iio/dac/mcp4725.h index 628b2cf54c50..e9801c8d49c0 100644 --- a/include/linux/iio/dac/mcp4725.h +++ b/include/linux/iio/dac/mcp4725.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * MCP4725 DAC driver * * Copyright (C) 2012 Peter Meerwald - * - * Licensed under the GPL-2 or later. */ #ifndef IIO_DAC_MCP4725_H_ diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h index 469a493f7ae0..3428d06b2f44 100644 --- a/include/linux/iio/imu/adis.h +++ b/include/linux/iio/imu/adis.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Common library for ADIS16XXX devices * * Copyright 2012 Analog Devices Inc. * Author: Lars-Peter Clausen - * - * Licensed under the GPL-2 or later. */ #ifndef __IIO_ADIS_H__ diff --git a/include/linux/input/ad714x.h b/include/linux/input/ad714x.h index d388d857bf14..20aea668b007 100644 --- a/include/linux/input/ad714x.h +++ b/include/linux/input/ad714x.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/input/ad714x.h * @@ -7,8 +8,6 @@ * information. * * Copyright 2009-2011 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #ifndef __LINUX_INPUT_AD714X_H__ diff --git a/include/linux/input/adxl34x.h b/include/linux/input/adxl34x.h index 010d98175efa..7efc9008f316 100644 --- a/include/linux/input/adxl34x.h +++ b/include/linux/input/adxl34x.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/input/adxl34x.h * @@ -6,8 +7,6 @@ * device's "struct device" holds this information. * * Copyright 2009 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #ifndef __LINUX_INPUT_ADXL34X_H__ diff --git a/include/linux/mfd/adp5520.h b/include/linux/mfd/adp5520.h index ac37558a4673..9a14f80ec4ad 100644 --- a/include/linux/mfd/adp5520.h +++ b/include/linux/mfd/adp5520.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Definitions and platform data for Analog Devices * ADP5520/ADP5501 MFD PMICs (Backlight, LED, GPIO and Keys) * * Copyright 2009 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ diff --git a/include/linux/platform_data/ad7887.h b/include/linux/platform_data/ad7887.h index 1e06eac3174d..732af46b2d16 100644 --- a/include/linux/platform_data/ad7887.h +++ b/include/linux/platform_data/ad7887.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * AD7887 SPI ADC driver * * Copyright 2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #ifndef IIO_ADC_AD7887_H_ #define IIO_ADC_AD7887_H_ diff --git a/include/linux/platform_data/adau17x1.h b/include/linux/platform_data/adau17x1.h index 9db1b905df24..27a39cc6faec 100644 --- a/include/linux/platform_data/adau17x1.h +++ b/include/linux/platform_data/adau17x1.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Driver for ADAU1361/ADAU1461/ADAU1761/ADAU1961/ADAU1381/ADAU1781 codecs * * Copyright 2011-2014 Analog Devices Inc. * Author: Lars-Peter Clausen - * - * Licensed under the GPL-2 or later. */ #ifndef __LINUX_PLATFORM_DATA_ADAU17X1_H__ diff --git a/include/linux/platform_data/adp5588.h b/include/linux/platform_data/adp5588.h index c2153049cfbd..6d3f7d911a92 100644 --- a/include/linux/platform_data/adp5588.h +++ b/include/linux/platform_data/adp5588.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Analog Devices ADP5588 I/O Expander and QWERTY Keypad Controller * * Copyright 2009-2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #ifndef _ADP5588_H diff --git a/include/linux/platform_data/adp8860.h b/include/linux/platform_data/adp8860.h index 0b4d39855c91..523c43740ec6 100644 --- a/include/linux/platform_data/adp8860.h +++ b/include/linux/platform_data/adp8860.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Definitions and platform data for Analog Devices * Backlight drivers ADP8860 * * Copyright 2009-2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #ifndef __LINUX_I2C_ADP8860_H diff --git a/include/linux/platform_data/adp8870.h b/include/linux/platform_data/adp8870.h index 624dceccbd5b..c5e55df2d809 100644 --- a/include/linux/platform_data/adp8870.h +++ b/include/linux/platform_data/adp8870.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Definitions and platform data for Analog Devices * Backlight drivers ADP8870 * * Copyright 2009-2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #ifndef __LINUX_I2C_ADP8870_H diff --git a/include/linux/platform_data/wiznet.h b/include/linux/platform_data/wiznet.h index b5d8c192d84d..1154c4db8a13 100644 --- a/include/linux/platform_data/wiznet.h +++ b/include/linux/platform_data/wiznet.h @@ -1,7 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Ethernet driver for the WIZnet W5x00 chip. - * - * Licensed under the GPL-2 or later. */ #ifndef PLATFORM_DATA_WIZNET_H -- cgit v1.2.3 From a912e80bd0bbfec053ccfdca625c2c760a8b08e8 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 27 May 2019 08:55:00 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 151 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 35 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.655028468@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/irqchip/ingenic.h | 11 +---------- include/linux/mfd/pcf50633/backlight.h | 11 +---------- include/linux/platform_data/jz4740/jz4740_nand.h | 11 +---------- include/linux/power/gpio-charger.h | 11 +---------- include/linux/power/jz4740-battery.h | 11 +---------- include/linux/power/twl4030_madc_battery.h | 11 +---------- 6 files changed, 6 insertions(+), 60 deletions(-) (limited to 'include/linux') diff --git a/include/linux/irqchip/ingenic.h b/include/linux/irqchip/ingenic.h index 0ee319a4029d..146558853ad4 100644 --- a/include/linux/irqchip/ingenic.h +++ b/include/linux/irqchip/ingenic.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2010, Lars-Peter Clausen - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef __LINUX_IRQCHIP_INGENIC_H__ diff --git a/include/linux/mfd/pcf50633/backlight.h b/include/linux/mfd/pcf50633/backlight.h index 83747e217b27..fd4a4f8d6c13 100644 --- a/include/linux/mfd/pcf50633/backlight.h +++ b/include/linux/mfd/pcf50633/backlight.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2009-2010, Lars-Peter Clausen * PCF50633 backlight device driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef __LINUX_MFD_PCF50633_BACKLIGHT diff --git a/include/linux/platform_data/jz4740/jz4740_nand.h b/include/linux/platform_data/jz4740/jz4740_nand.h index bc571f6d5ced..b3f066d63059 100644 --- a/include/linux/platform_data/jz4740/jz4740_nand.h +++ b/include/linux/platform_data/jz4740/jz4740_nand.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2009-2010, Lars-Peter Clausen * JZ4740 SoC NAND controller driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef __JZ4740_NAND_H__ diff --git a/include/linux/power/gpio-charger.h b/include/linux/power/gpio-charger.h index de1dfe09a03d..5a5a8de98181 100644 --- a/include/linux/power/gpio-charger.h +++ b/include/linux/power/gpio-charger.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2010, Lars-Peter Clausen - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef __LINUX_POWER_GPIO_CHARGER_H__ diff --git a/include/linux/power/jz4740-battery.h b/include/linux/power/jz4740-battery.h index 19c9610c720a..10da211678c8 100644 --- a/include/linux/power/jz4740-battery.h +++ b/include/linux/power/jz4740-battery.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2009, Jiejing Zhang - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef __JZ4740_BATTERY_H diff --git a/include/linux/power/twl4030_madc_battery.h b/include/linux/power/twl4030_madc_battery.h index 23110dc77726..26517e9dfaa9 100644 --- a/include/linux/power/twl4030_madc_battery.h +++ b/include/linux/power/twl4030_madc_battery.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Dumb driver for LiIon batteries using TWL4030 madc. * * Copyright 2013 Golden Delicious Computers * Nikolaus Schaller - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #ifndef __TWL4030_MADC_BATTERY_H -- cgit v1.2.3 From 2874c5fd284268364ece81a7bd936f3c8168e567 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 27 May 2019 08:55:01 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/atmel_pdc.h | 6 +----- include/linux/bcm47xx_nvram.h | 5 +---- include/linux/bcm47xx_sprom.h | 5 +---- include/linux/clk/at91_pmc.h | 6 +----- include/linux/crypto.h | 7 +------ include/linux/elf-fdpic.h | 6 +----- include/linux/etherdevice.h | 7 +------ include/linux/eventpoll.h | 7 +------ include/linux/fcdevice.h | 7 +------ include/linux/fddidevice.h | 6 +----- include/linux/fscache-cache.h | 6 +----- include/linux/fscache.h | 6 +----- include/linux/fsl-diu-fb.h | 7 +------ include/linux/fsl/guts.h | 6 +----- include/linux/fsl_devices.h | 6 +----- include/linux/hid-roccat.h | 5 +---- include/linux/hippidevice.h | 6 +----- include/linux/icmp.h | 6 +----- include/linux/if_arp.h | 6 +----- include/linux/if_bridge.h | 6 +----- include/linux/if_ether.h | 6 +----- include/linux/if_fddi.h | 6 +----- include/linux/if_frad.h | 6 +----- include/linux/if_pppol2tp.h | 6 +----- include/linux/if_pppox.h | 6 +----- include/linux/if_team.h | 6 +----- include/linux/if_vlan.h | 7 +------ include/linux/igmp.h | 7 +------ include/linux/imx-media.h | 6 +----- include/linux/in.h | 6 +----- include/linux/in6.h | 6 +----- include/linux/inet.h | 6 +----- include/linux/input/samsung-keypad.h | 6 +----- include/linux/ip.h | 6 +----- include/linux/ipv6_route.h | 6 +----- include/linux/jz4780-nemc.h | 6 +----- include/linux/key.h | 7 +------ include/linux/log2.h | 6 +----- include/linux/memblock.h | 6 +----- include/linux/mfd/bcm590xx.h | 7 +------ include/linux/mfd/da9055/pdata.h | 7 +------ include/linux/mfd/da9063/pdata.h | 7 +------ include/linux/mfd/da9150/core.h | 6 +----- include/linux/mfd/da9150/registers.h | 6 +----- include/linux/mfd/janz.h | 6 +----- include/linux/mfd/lm3533.h | 6 +----- include/linux/mfd/palmas.h | 7 +------ include/linux/mfd/pcf50633/adc.h | 6 +----- include/linux/mfd/pcf50633/core.h | 6 +----- include/linux/mfd/pcf50633/gpio.h | 6 +----- include/linux/mfd/pcf50633/mbc.h | 6 +----- include/linux/mfd/smsc.h | 7 +------ include/linux/mfd/syscon.h | 6 +----- include/linux/mfd/syscon/clps711x.h | 6 +----- include/linux/mfd/tps65910.h | 7 +------ include/linux/mfd/viperboard.h | 7 +------ include/linux/mfd/wm831x/auxadc.h | 7 +------ include/linux/mfd/wm831x/core.h | 7 +------ include/linux/mfd/wm831x/gpio.h | 7 +------ include/linux/mfd/wm831x/irq.h | 7 +------ include/linux/mfd/wm831x/otp.h | 7 +------ include/linux/mfd/wm831x/pdata.h | 7 +------ include/linux/mfd/wm831x/pmu.h | 7 +------ include/linux/mfd/wm831x/regulator.h | 7 +------ include/linux/mfd/wm831x/status.h | 7 +------ include/linux/mfd/wm831x/watchdog.h | 7 +------ include/linux/mfd/wm8350/audio.h | 7 +------ include/linux/mfd/wm8350/comparator.h | 6 +----- include/linux/mfd/wm8350/core.h | 7 +------ include/linux/mfd/wm8350/gpio.h | 7 +------ include/linux/mfd/wm8350/pmic.h | 7 +------ include/linux/mfd/wm8350/rtc.h | 6 +----- include/linux/mfd/wm8350/supply.h | 7 +------ include/linux/mfd/wm8350/wdt.h | 6 +----- include/linux/mfd/wm8994/core.h | 7 +------ include/linux/mfd/wm8994/gpio.h | 7 +------ include/linux/mfd/wm8994/pdata.h | 7 +------ include/linux/mfd/wm8994/registers.h | 7 +------ include/linux/mfd/wm97xx.h | 6 +----- include/linux/micrel_phy.h | 7 +------ include/linux/mmc/sd.h | 6 +----- include/linux/mmc/sdio.h | 6 +----- include/linux/mmc/sdio_func.h | 6 +----- include/linux/mtd/physmap.h | 7 +------ include/linux/mtd/super.h | 6 +----- include/linux/mv643xx.h | 6 +----- include/linux/mv643xx_i2c.h | 5 +---- include/linux/net.h | 6 +----- include/linux/netdev_features.h | 7 +------ include/linux/netdevice.h | 6 +----- include/linux/omap-gpmc.h | 6 +----- include/linux/phy.h | 7 +------ include/linux/phy/phy.h | 6 +----- include/linux/platform_data/dma-atmel.h | 6 +----- include/linux/platform_data/dma-s3c24xx.h | 6 +----- include/linux/platform_data/edma.h | 6 +----- include/linux/platform_data/i2c-mux-reg.h | 6 +----- include/linux/platform_data/isl9305.h | 6 +----- include/linux/platform_data/ltc4245.h | 6 +----- include/linux/platform_data/mcs.h | 7 +------ include/linux/platform_data/media/coda.h | 6 +----- include/linux/platform_data/media/s5p_hdmi.h | 6 +----- include/linux/platform_data/mv_usb.h | 6 +----- include/linux/platform_data/omap-wd-timer.h | 6 +----- include/linux/platform_data/omapdss.h | 6 +----- include/linux/platform_data/serial-omap.h | 6 +----- include/linux/platform_data/serial-sccnxp.h | 6 +----- include/linux/platform_data/simplefb.h | 6 +----- include/linux/platform_data/spi-clps711x.h | 6 +----- include/linux/platform_data/video-nuc900fb.h | 6 +----- include/linux/ppp_channel.h | 6 +----- include/linux/ptr_ring.h | 6 +----- include/linux/regulator/fixed.h | 6 +----- include/linux/regulator/gpio-regulator.h | 6 +----- include/linux/remoteproc/st_slim_rproc.h | 6 +----- include/linux/rio.h | 6 +----- include/linux/rio_drv.h | 6 +----- include/linux/rio_ids.h | 6 +----- include/linux/rio_regs.h | 6 +----- include/linux/sdla.h | 6 +----- include/linux/serial_8250.h | 6 +----- include/linux/serial_max3100.h | 6 +----- include/linux/skb_array.h | 6 +----- include/linux/skbuff.h | 6 +----- include/linux/spi/cc2520.h | 7 +------ include/linux/spi/libertas_spi.h | 6 +----- include/linux/stmp_device.h | 6 +----- include/linux/tcp.h | 6 +----- include/linux/tfrc.h | 6 +----- include/linux/udp.h | 6 +----- include/linux/uio.h | 6 +----- 131 files changed, 131 insertions(+), 691 deletions(-) (limited to 'include/linux') diff --git a/include/linux/atmel_pdc.h b/include/linux/atmel_pdc.h index 63499ce806ea..00a766b5ee96 100644 --- a/include/linux/atmel_pdc.h +++ b/include/linux/atmel_pdc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/atmel_pdc.h * @@ -6,11 +7,6 @@ * * Peripheral Data Controller (PDC) registers. * Based on AT91RM9200 datasheet revision E. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef ATMEL_PDC_H diff --git a/include/linux/bcm47xx_nvram.h b/include/linux/bcm47xx_nvram.h index a414a2b53e41..53b31f69b74a 100644 --- a/include/linux/bcm47xx_nvram.h +++ b/include/linux/bcm47xx_nvram.h @@ -1,8 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __BCM47XX_NVRAM_H diff --git a/include/linux/bcm47xx_sprom.h b/include/linux/bcm47xx_sprom.h index c06b47c84e1a..b0f4424f34fc 100644 --- a/include/linux/bcm47xx_sprom.h +++ b/include/linux/bcm47xx_sprom.h @@ -1,8 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __BCM47XX_SPROM_H diff --git a/include/linux/clk/at91_pmc.h b/include/linux/clk/at91_pmc.h index 44e8fc30b889..390437887b46 100644 --- a/include/linux/clk/at91_pmc.h +++ b/include/linux/clk/at91_pmc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/clk/at91_pmc.h * @@ -6,11 +7,6 @@ * * Power Management Controller (PMC) - System peripherals registers. * Based on AT91RM9200 datasheet revision E. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef AT91_PMC_H diff --git a/include/linux/crypto.h b/include/linux/crypto.h index f2565a103158..9cf8f3ce0e50 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Scatterlist Cryptographic API. * @@ -7,12 +8,6 @@ * * Portions derived from Cryptoapi, by Alexander Kjeldaas * and Nettle, by Niels Möller. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * */ #ifndef _LINUX_CRYPTO_H #define _LINUX_CRYPTO_H diff --git a/include/linux/elf-fdpic.h b/include/linux/elf-fdpic.h index 386440317b0c..3bea95a1af53 100644 --- a/include/linux/elf-fdpic.h +++ b/include/linux/elf-fdpic.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* FDPIC ELF load map * * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_ELF_FDPIC_H diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index 25c0d049336f..f6564b572d77 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. NET is implemented using the BSD Socket @@ -12,12 +13,6 @@ * * Relocated to include/linux where it belongs by Alan Cox * - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * */ #ifndef _LINUX_ETHERDEVICE_H #define _LINUX_ETHERDEVICE_H diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h index 2f14ac73d01d..bc6d79b00c4e 100644 --- a/include/linux/eventpoll.h +++ b/include/linux/eventpoll.h @@ -1,14 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/eventpoll.h ( Efficient event polling implementation ) * Copyright (C) 2001,...,2006 Davide Libenzi * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * * Davide Libenzi - * */ #ifndef _LINUX_EVENTPOLL_H #define _LINUX_EVENTPOLL_H diff --git a/include/linux/fcdevice.h b/include/linux/fcdevice.h index 5009fa16b5d8..3d14ebe59dc9 100644 --- a/include/linux/fcdevice.h +++ b/include/linux/fcdevice.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. NET is implemented using the BSD Socket @@ -12,13 +13,7 @@ * Relocated to include/linux where it belongs by Alan Cox * * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * WARNING: This move may well be temporary. This file will get merged with others RSN. - * */ #ifndef _LINUX_FCDEVICE_H #define _LINUX_FCDEVICE_H diff --git a/include/linux/fddidevice.h b/include/linux/fddidevice.h index 32c22cfb238b..906ee446db92 100644 --- a/include/linux/fddidevice.h +++ b/include/linux/fddidevice.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -13,11 +14,6 @@ * Ross Biro * Fred N. van Kempen, * Alan Cox, - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_FDDIDEVICE_H #define _LINUX_FDDIDEVICE_H diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h index 610815e3f1aa..d5ba431b5d63 100644 --- a/include/linux/fscache-cache.h +++ b/include/linux/fscache-cache.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* General filesystem caching backing cache interface * * Copyright (C) 2004-2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * NOTE!!! See: * * Documentation/filesystems/caching/backend-api.txt diff --git a/include/linux/fscache.h b/include/linux/fscache.h index 84b90a79d75a..ad044c0cb1f3 100644 --- a/include/linux/fscache.h +++ b/include/linux/fscache.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* General filesystem caching interface * * Copyright (C) 2004-2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * NOTE!!! See: * * Documentation/filesystems/caching/netfs-api.txt diff --git a/include/linux/fsl-diu-fb.h b/include/linux/fsl-diu-fb.h index c46eab5bc893..9a55ddc0d277 100644 --- a/include/linux/fsl-diu-fb.h +++ b/include/linux/fsl-diu-fb.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. * @@ -9,12 +10,6 @@ * York Sun * * Based on imxfb.c Copyright (C) 2004 S.Hauer, Pengutronix - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __FSL_DIU_FB_H__ diff --git a/include/linux/fsl/guts.h b/include/linux/fsl/guts.h index 1fc0edd71c52..0ac27b233f12 100644 --- a/include/linux/fsl/guts.h +++ b/include/linux/fsl/guts.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /** * Freecale 85xx and 86xx Global Utilties register set * @@ -5,11 +6,6 @@ * Timur Tabi * * Copyright 2004,2007,2012 Freescale Semiconductor, Inc - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __FSL_GUTS_H__ diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h index 5da56a674f2f..cb2b46f57af3 100644 --- a/include/linux/fsl_devices.h +++ b/include/linux/fsl_devices.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/fsl_devices.h * @@ -7,11 +8,6 @@ * Maintainer: Kumar Gala * * Copyright 2004,2012 Freescale Semiconductor, Inc - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef _FSL_DEVICE_H_ diff --git a/include/linux/hid-roccat.h b/include/linux/hid-roccat.h index 24e1ca01f9a0..3214fb0815fc 100644 --- a/include/linux/hid-roccat.h +++ b/include/linux/hid-roccat.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef __HID_ROCCAT_H #define __HID_ROCCAT_H @@ -6,10 +7,6 @@ */ /* - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. */ #include diff --git a/include/linux/hippidevice.h b/include/linux/hippidevice.h index 402f99e328d4..9dc01f7ab5b4 100644 --- a/include/linux/hippidevice.h +++ b/include/linux/hippidevice.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -14,11 +15,6 @@ * Fred N. van Kempen, * Alan Cox, * Lawrence V. Stefani, - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_HIPPIDEVICE_H #define _LINUX_HIPPIDEVICE_H diff --git a/include/linux/icmp.h b/include/linux/icmp.h index efc18490627a..2d8aaf7d4b9e 100644 --- a/include/linux/icmp.h +++ b/include/linux/icmp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -8,11 +9,6 @@ * Version: @(#)icmp.h 1.0.3 04/28/93 * * Author: Fred N. van Kempen, - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_ICMP_H #define _LINUX_ICMP_H diff --git a/include/linux/if_arp.h b/include/linux/if_arp.h index e44746de95cd..bf5c5f32c65e 100644 --- a/include/linux/if_arp.h +++ b/include/linux/if_arp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -14,11 +15,6 @@ * Florian La Roche, * Jonathan Layes * Arnaldo Carvalho de Melo ARPHRD_HWX25 - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_IF_ARP_H #define _LINUX_IF_ARP_H diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h index ef0819ced0fc..f3fab5d0ea97 100644 --- a/include/linux/if_bridge.h +++ b/include/linux/if_bridge.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Linux ethernet bridge * * Authors: * Lennert Buytenhek - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_IF_BRIDGE_H #define _LINUX_IF_BRIDGE_H diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h index 548fd535fd02..76cf11e905e1 100644 --- a/include/linux/if_ether.h +++ b/include/linux/if_ether.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -11,11 +12,6 @@ * Donald Becker, * Alan Cox, * Steve Whitehouse, - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_IF_ETHER_H #define _LINUX_IF_ETHER_H diff --git a/include/linux/if_fddi.h b/include/linux/if_fddi.h index f5550b3eeeab..c796f452d646 100644 --- a/include/linux/if_fddi.h +++ b/include/linux/if_fddi.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -15,11 +16,6 @@ * Alan Cox, * Steve Whitehouse, * Peter De Schrijver, - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_IF_FDDI_H #define _LINUX_IF_FDDI_H diff --git a/include/linux/if_frad.h b/include/linux/if_frad.h index 82a1b4e93570..52224de798aa 100644 --- a/include/linux/if_frad.h +++ b/include/linux/if_frad.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * DLCI/FRAD Definitions for Frame Relay Access Devices. DLCI devices are * created for each DLCI associated with a FRAD. The FRAD driver @@ -14,11 +15,6 @@ * 0.15 Mike McLagan changed structure defs (packed) * re-arranged flags * added DLCI_RET vars - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _FRAD_H_ #define _FRAD_H_ diff --git a/include/linux/if_pppol2tp.h b/include/linux/if_pppol2tp.h index 0fb71e532b2c..96d40942e5a3 100644 --- a/include/linux/if_pppol2tp.h +++ b/include/linux/if_pppol2tp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /*************************************************************************** * Linux PPP over L2TP (PPPoL2TP) Socket Implementation (RFC 2661) * @@ -5,11 +6,6 @@ * (l2tp_ppp.c). All version information wrt this file is located in l2tp_ppp.c * * License: - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * */ #ifndef __LINUX_IF_PPPOL2TP_H #define __LINUX_IF_PPPOL2TP_H diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h index ba7a9b0c7c57..8b728750a625 100644 --- a/include/linux/if_pppox.h +++ b/include/linux/if_pppox.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /*************************************************************************** * Linux PPP over X - Generic PPP transport layer sockets * Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516) @@ -6,11 +7,6 @@ * (pppox.c). All version information wrt this file is located in pppox.c * * License: - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * */ #ifndef __LINUX_IF_PPPOX_H #define __LINUX_IF_PPPOX_H diff --git a/include/linux/if_team.h b/include/linux/if_team.h index ac42da56f7a2..06faa066496f 100644 --- a/include/linux/if_team.h +++ b/include/linux/if_team.h @@ -1,11 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/if_team.h - Network team device driver header * Copyright (c) 2011 Jiri Pirko - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef _LINUX_IF_TEAM_H_ #define _LINUX_IF_TEAM_H_ diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 4cca4da7a6de..244278d5c222 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * VLAN An implementation of 802.1Q VLAN tagging. * * Authors: Ben Greear - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * */ #ifndef _LINUX_IF_VLAN_H_ #define _LINUX_IF_VLAN_H_ diff --git a/include/linux/igmp.h b/include/linux/igmp.h index 9c94b2ea789c..9cbbd1baaf85 100644 --- a/include/linux/igmp.h +++ b/include/linux/igmp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Linux NET3: Internet Group Management Protocol [IGMP] * @@ -5,12 +6,6 @@ * Alan Cox * * Extended to talk the BSD extended IGMP protocol of mrouted 3.6 - * - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_IGMP_H #define _LINUX_IGMP_H diff --git a/include/linux/imx-media.h b/include/linux/imx-media.h index 77221ecad6fc..e017e1779118 100644 --- a/include/linux/imx-media.h +++ b/include/linux/imx-media.h @@ -1,10 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 2014-2017 Mentor Graphics Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the - * License, or (at your option) any later version */ #ifndef __LINUX_IMX_MEDIA_H__ diff --git a/include/linux/in.h b/include/linux/in.h index 435e7f2a513a..4d2fedfb753a 100644 --- a/include/linux/in.h +++ b/include/linux/in.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -9,11 +10,6 @@ * * Authors: Original taken from the GNU Project file. * Fred N. van Kempen, - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_IN_H #define _LINUX_IN_H diff --git a/include/linux/in6.h b/include/linux/in6.h index 34edf1f6c9a3..0777a21cbf86 100644 --- a/include/linux/in6.h +++ b/include/linux/in6.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Types and definitions for AF_INET6 * Linux INET6 implementation @@ -11,11 +12,6 @@ * * Advanced Sockets API for IPv6 * - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_IN6_H #define _LINUX_IN6_H diff --git a/include/linux/inet.h b/include/linux/inet.h index 97defc1139e9..bd8276e96e60 100644 --- a/include/linux/inet.h +++ b/include/linux/inet.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Swansea University Computer Society NET3 * @@ -33,11 +34,6 @@ * $Id: udp.h,v 0.8.4.1 1992/11/10 00:17:18 bir7 Exp $ * $Id: we.c,v 0.8.4.10 1993/01/23 18:00:11 bir7 Exp $ * $Id: wereg.h,v 0.8.4.1 1992/11/10 00:17:18 bir7 Exp $ - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_INET_H #define _LINUX_INET_H diff --git a/include/linux/input/samsung-keypad.h b/include/linux/input/samsung-keypad.h index f25619bfd8a8..ab6b97114c08 100644 --- a/include/linux/input/samsung-keypad.h +++ b/include/linux/input/samsung-keypad.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Samsung Keypad platform data definitions * * Copyright (C) 2010 Samsung Electronics Co.Ltd * Author: Joonyoung Shim - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __SAMSUNG_KEYPAD_H diff --git a/include/linux/ip.h b/include/linux/ip.h index 482b7b7c9f30..3d9c6750af62 100644 --- a/include/linux/ip.h +++ b/include/linux/ip.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -8,11 +9,6 @@ * Version: @(#)ip.h 1.0.2 04/28/93 * * Authors: Fred N. van Kempen, - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_IP_H #define _LINUX_IP_H diff --git a/include/linux/ipv6_route.h b/include/linux/ipv6_route.h index 25b5f1f5e780..5711e246c39c 100644 --- a/include/linux/ipv6_route.h +++ b/include/linux/ipv6_route.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Linux INET6 implementation * * Authors: * Pedro Roque - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_IPV6_ROUTE_H #define _LINUX_IPV6_ROUTE_H diff --git a/include/linux/jz4780-nemc.h b/include/linux/jz4780-nemc.h index e7f1cc7a2284..bd7fad910242 100644 --- a/include/linux/jz4780-nemc.h +++ b/include/linux/jz4780-nemc.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * JZ4780 NAND/external memory controller (NEMC) * * Copyright (c) 2015 Imagination Technologies * Author: Alex Smith - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __LINUX_JZ4780_NEMC_H__ diff --git a/include/linux/key.h b/include/linux/key.h index 7099985e35a9..1c8b88b455ef 100644 --- a/include/linux/key.h +++ b/include/linux/key.h @@ -1,14 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Authentication token and access key management * * Copyright (C) 2004, 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * * See Documentation/security/keys/core.rst for information on keys/keyrings. */ diff --git a/include/linux/log2.h b/include/linux/log2.h index 2af7f77866d0..1aec01365ed4 100644 --- a/include/linux/log2.h +++ b/include/linux/log2.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Integer base 2 logarithm calculation * * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_LOG2_H diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 676d3900e1bd..f491690d54c6 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _LINUX_MEMBLOCK_H #define _LINUX_MEMBLOCK_H #ifdef __KERNEL__ @@ -6,11 +7,6 @@ * Logical memory blocks. * * Copyright (C) 2001 Peter Bergner, IBM Corp. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #include diff --git a/include/linux/mfd/bcm590xx.h b/include/linux/mfd/bcm590xx.h index 267aedee1c7a..6b8791da6119 100644 --- a/include/linux/mfd/bcm590xx.h +++ b/include/linux/mfd/bcm590xx.h @@ -1,14 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Broadcom BCM590xx PMU * * Copyright 2014 Linaro Limited * Author: Matt Porter - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __LINUX_MFD_BCM590XX_H diff --git a/include/linux/mfd/da9055/pdata.h b/include/linux/mfd/da9055/pdata.h index 1a94fa2ac309..eac48e483190 100644 --- a/include/linux/mfd/da9055/pdata.h +++ b/include/linux/mfd/da9055/pdata.h @@ -1,10 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Copyright (C) 2012 Dialog Semiconductor Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * */ #ifndef __DA9055_PDATA_H #define __DA9055_PDATA_H diff --git a/include/linux/mfd/da9063/pdata.h b/include/linux/mfd/da9063/pdata.h index 50bed4f89c1a..77c566ab96ab 100644 --- a/include/linux/mfd/da9063/pdata.h +++ b/include/linux/mfd/da9063/pdata.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Platform configuration options for DA9063 * @@ -5,12 +6,6 @@ * * Author: Michal Hajduk, Dialog Semiconductor * Author: Krystian Garbaciak, Dialog Semiconductor - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_DA9063_PDATA_H__ diff --git a/include/linux/mfd/da9150/core.h b/include/linux/mfd/da9150/core.h index 1bf50caeb9fa..d116d5f3ef56 100644 --- a/include/linux/mfd/da9150/core.h +++ b/include/linux/mfd/da9150/core.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * DA9150 MFD Driver - Core Data * * Copyright (c) 2014 Dialog Semiconductor * * Author: Adam Thomson - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __DA9150_CORE_H diff --git a/include/linux/mfd/da9150/registers.h b/include/linux/mfd/da9150/registers.h index 27ca6ee4d840..1fd8f5968817 100644 --- a/include/linux/mfd/da9150/registers.h +++ b/include/linux/mfd/da9150/registers.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * DA9150 MFD Driver - Registers * * Copyright (c) 2014 Dialog Semiconductor * * Author: Adam Thomson - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __DA9150_REGISTERS_H diff --git a/include/linux/mfd/janz.h b/include/linux/mfd/janz.h index e9994c469803..90dea65fd733 100644 --- a/include/linux/mfd/janz.h +++ b/include/linux/mfd/janz.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Common Definitions for Janz MODULbus devices * * Copyright (c) 2010 Ira W. Snyder - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef JANZ_H diff --git a/include/linux/mfd/lm3533.h b/include/linux/mfd/lm3533.h index 594bc591f256..77092f6363ad 100644 --- a/include/linux/mfd/lm3533.h +++ b/include/linux/mfd/lm3533.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * lm3533.h -- LM3533 interface * * Copyright (C) 2011-2012 Texas Instruments * * Author: Johan Hovold - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __LINUX_MFD_LM3533_H diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index c34d5f0d34d7..1e61c7e9f50d 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * TI Palmas * @@ -5,12 +6,6 @@ * * Author: Graeme Gregory * Author: Ian Lartey - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __LINUX_MFD_PALMAS_H diff --git a/include/linux/mfd/pcf50633/adc.h b/include/linux/mfd/pcf50633/adc.h index b35e62801ffa..6a81896d4889 100644 --- a/include/linux/mfd/pcf50633/adc.h +++ b/include/linux/mfd/pcf50633/adc.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * adc.h -- Driver for NXP PCF50633 ADC * * (C) 2006-2008 by Openmoko, Inc. * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __LINUX_MFD_PCF50633_ADC_H diff --git a/include/linux/mfd/pcf50633/core.h b/include/linux/mfd/pcf50633/core.h index a80840752b4c..3f752dc62a6c 100644 --- a/include/linux/mfd/pcf50633/core.h +++ b/include/linux/mfd/pcf50633/core.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * core.h -- Core driver for NXP PCF50633 * * (C) 2006-2008 by Openmoko, Inc. * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __LINUX_MFD_PCF50633_CORE_H diff --git a/include/linux/mfd/pcf50633/gpio.h b/include/linux/mfd/pcf50633/gpio.h index a42b845efc54..f589e35795f1 100644 --- a/include/linux/mfd/pcf50633/gpio.h +++ b/include/linux/mfd/pcf50633/gpio.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * gpio.h -- GPIO driver for NXP PCF50633 * * (C) 2006-2008 by Openmoko, Inc. * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __LINUX_MFD_PCF50633_GPIO_H diff --git a/include/linux/mfd/pcf50633/mbc.h b/include/linux/mfd/pcf50633/mbc.h index df4f5fa88de3..fa5cb9256d99 100644 --- a/include/linux/mfd/pcf50633/mbc.h +++ b/include/linux/mfd/pcf50633/mbc.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * mbc.h -- Driver for NXP PCF50633 Main Battery Charger * * (C) 2006-2008 by Openmoko, Inc. * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __LINUX_MFD_PCF50633_MBC_H diff --git a/include/linux/mfd/smsc.h b/include/linux/mfd/smsc.h index 9747b29f356f..83944124e886 100644 --- a/include/linux/mfd/smsc.h +++ b/include/linux/mfd/smsc.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * SMSC ECE1099 * * Copyright 2012 Texas Instruments Inc. * * Author: Sourav Poddar - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __LINUX_MFD_SMSC_H diff --git a/include/linux/mfd/syscon.h b/include/linux/mfd/syscon.h index 40a76b97b7ab..f0273c9e972b 100644 --- a/include/linux/mfd/syscon.h +++ b/include/linux/mfd/syscon.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * System Control Driver * @@ -5,11 +6,6 @@ * Copyright (C) 2012 Linaro Ltd. * * Author: Dong Aisheng - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef __LINUX_MFD_SYSCON_H__ diff --git a/include/linux/mfd/syscon/clps711x.h b/include/linux/mfd/syscon/clps711x.h index 26355abae515..4c12850dec89 100644 --- a/include/linux/mfd/syscon/clps711x.h +++ b/include/linux/mfd/syscon/clps711x.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * CLPS711X system register bits definitions * * Copyright (C) 2013 Alexander Shiyan - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef _LINUX_MFD_SYSCON_CLPS711X_H_ diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h index deffdcd0236f..ce4b9e743f7c 100644 --- a/include/linux/mfd/tps65910.h +++ b/include/linux/mfd/tps65910.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * tps65910.h -- TI TPS6591x * @@ -6,12 +7,6 @@ * Author: Graeme Gregory * Author: Jorge Eduardo Candelaria * Author: Arnaud Deconinck - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __LINUX_MFD_TPS65910_H diff --git a/include/linux/mfd/viperboard.h b/include/linux/mfd/viperboard.h index 193452848c04..0557667fe544 100644 --- a/include/linux/mfd/viperboard.h +++ b/include/linux/mfd/viperboard.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/viperboard.h * @@ -6,12 +7,6 @@ * (C) 2012 by Lemonage GmbH * Author: Lars Poeschel * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_VIPERBOARD_H__ diff --git a/include/linux/mfd/wm831x/auxadc.h b/include/linux/mfd/wm831x/auxadc.h index 867aa23f9370..02ddb4fe1608 100644 --- a/include/linux/mfd/wm831x/auxadc.h +++ b/include/linux/mfd/wm831x/auxadc.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm831x/auxadc.h -- Auxiliary ADC interface for WM831x * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM831X_AUXADC_H__ diff --git a/include/linux/mfd/wm831x/core.h b/include/linux/mfd/wm831x/core.h index 6fcb8eb00282..511bcad876f0 100644 --- a/include/linux/mfd/wm831x/core.h +++ b/include/linux/mfd/wm831x/core.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm831x/core.h -- Core interface for WM831x * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM831X_CORE_H__ diff --git a/include/linux/mfd/wm831x/gpio.h b/include/linux/mfd/wm831x/gpio.h index 9b163c58865f..70587a4ec634 100644 --- a/include/linux/mfd/wm831x/gpio.h +++ b/include/linux/mfd/wm831x/gpio.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm831x/gpio.h -- GPIO for WM831x * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM831X_GPIO_H__ diff --git a/include/linux/mfd/wm831x/irq.h b/include/linux/mfd/wm831x/irq.h index 3a8c97656fda..ab2d1524e729 100644 --- a/include/linux/mfd/wm831x/irq.h +++ b/include/linux/mfd/wm831x/irq.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm831x/irq.h -- Interrupt controller for WM831x * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM831X_IRQ_H__ diff --git a/include/linux/mfd/wm831x/otp.h b/include/linux/mfd/wm831x/otp.h index ce1f81a39bfc..bc244456ad56 100644 --- a/include/linux/mfd/wm831x/otp.h +++ b/include/linux/mfd/wm831x/otp.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm831x/otp.h -- OTP interface for WM831x * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM831X_OTP_H__ diff --git a/include/linux/mfd/wm831x/pdata.h b/include/linux/mfd/wm831x/pdata.h index dcc9631b3052..071cdf3e16cf 100644 --- a/include/linux/mfd/wm831x/pdata.h +++ b/include/linux/mfd/wm831x/pdata.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm831x/pdata.h -- Platform data for WM831x * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM831X_PDATA_H__ diff --git a/include/linux/mfd/wm831x/pmu.h b/include/linux/mfd/wm831x/pmu.h index b18cbb027bc3..77187fcaf226 100644 --- a/include/linux/mfd/wm831x/pmu.h +++ b/include/linux/mfd/wm831x/pmu.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm831x/pmu.h -- PMU for WM831x * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM831X_PMU_H__ diff --git a/include/linux/mfd/wm831x/regulator.h b/include/linux/mfd/wm831x/regulator.h index 30c587a0624c..233b3017954a 100644 --- a/include/linux/mfd/wm831x/regulator.h +++ b/include/linux/mfd/wm831x/regulator.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * linux/mfd/wm831x/regulator.h -- Regulator definitons for wm831x * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM831X_REGULATOR_H__ diff --git a/include/linux/mfd/wm831x/status.h b/include/linux/mfd/wm831x/status.h index 6bc090d0e3ac..0d263577d21d 100644 --- a/include/linux/mfd/wm831x/status.h +++ b/include/linux/mfd/wm831x/status.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm831x/status.h -- Status LEDs for WM831x * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM831X_STATUS_H__ diff --git a/include/linux/mfd/wm831x/watchdog.h b/include/linux/mfd/wm831x/watchdog.h index 97a99b52956f..c997c792946c 100644 --- a/include/linux/mfd/wm831x/watchdog.h +++ b/include/linux/mfd/wm831x/watchdog.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm831x/watchdog.h -- Watchdog for WM831x * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM831X_WATCHDOG_H__ diff --git a/include/linux/mfd/wm8350/audio.h b/include/linux/mfd/wm8350/audio.h index 0bc41c4c0429..ec01ec84d495 100644 --- a/include/linux/mfd/wm8350/audio.h +++ b/include/linux/mfd/wm8350/audio.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * audio.h -- Audio Driver for Wolfson WM8350 PMIC * * Copyright 2007, 2008 Wolfson Microelectronics PLC - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __LINUX_MFD_WM8350_AUDIO_H_ diff --git a/include/linux/mfd/wm8350/comparator.h b/include/linux/mfd/wm8350/comparator.h index 54bc5d0fd502..250d89239528 100644 --- a/include/linux/mfd/wm8350/comparator.h +++ b/include/linux/mfd/wm8350/comparator.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * comparator.h -- Comparator Aux ADC for Wolfson WM8350 PMIC * * Copyright 2007 Wolfson Microelectronics PLC - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __LINUX_MFD_WM8350_COMPARATOR_H_ diff --git a/include/linux/mfd/wm8350/core.h b/include/linux/mfd/wm8350/core.h index 202d9bde2c7c..a3241e4d7548 100644 --- a/include/linux/mfd/wm8350/core.h +++ b/include/linux/mfd/wm8350/core.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * core.h -- Core Driver for Wolfson WM8350 PMIC * * Copyright 2007 Wolfson Microelectronics PLC - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __LINUX_MFD_WM8350_CORE_H_ diff --git a/include/linux/mfd/wm8350/gpio.h b/include/linux/mfd/wm8350/gpio.h index d657bcd6d955..e831b30dde3e 100644 --- a/include/linux/mfd/wm8350/gpio.h +++ b/include/linux/mfd/wm8350/gpio.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * gpio.h -- GPIO Driver for Wolfson WM8350 PMIC * * Copyright 2007 Wolfson Microelectronics PLC - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __LINUX_MFD_WM8350_GPIO_H_ diff --git a/include/linux/mfd/wm8350/pmic.h b/include/linux/mfd/wm8350/pmic.h index 7a09e7f1f984..04b09a2ddb28 100644 --- a/include/linux/mfd/wm8350/pmic.h +++ b/include/linux/mfd/wm8350/pmic.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * pmic.h -- Power Management Driver for Wolfson WM8350 PMIC * * Copyright 2007 Wolfson Microelectronics PLC - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __LINUX_MFD_WM8350_PMIC_H diff --git a/include/linux/mfd/wm8350/rtc.h b/include/linux/mfd/wm8350/rtc.h index ebd72ffc62d1..b2f58359b2eb 100644 --- a/include/linux/mfd/wm8350/rtc.h +++ b/include/linux/mfd/wm8350/rtc.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * rtc.h -- RTC driver for Wolfson WM8350 PMIC * * Copyright 2007 Wolfson Microelectronics PLC - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __LINUX_MFD_WM8350_RTC_H diff --git a/include/linux/mfd/wm8350/supply.h b/include/linux/mfd/wm8350/supply.h index 8dc93673e34a..d7a91e26177c 100644 --- a/include/linux/mfd/wm8350/supply.h +++ b/include/linux/mfd/wm8350/supply.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * supply.h -- Power Supply Driver for Wolfson WM8350 PMIC * * Copyright 2007 Wolfson Microelectronics PLC - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __LINUX_MFD_WM8350_SUPPLY_H_ diff --git a/include/linux/mfd/wm8350/wdt.h b/include/linux/mfd/wm8350/wdt.h index f6135b5e5ef4..97454aa8c436 100644 --- a/include/linux/mfd/wm8350/wdt.h +++ b/include/linux/mfd/wm8350/wdt.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * wdt.h -- Watchdog Driver for Wolfson WM8350 PMIC * * Copyright 2007, 2008 Wolfson Microelectronics PLC - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __LINUX_MFD_WM8350_WDT_H_ diff --git a/include/linux/mfd/wm8994/core.h b/include/linux/mfd/wm8994/core.h index eefafa62d304..e8b093522ffd 100644 --- a/include/linux/mfd/wm8994/core.h +++ b/include/linux/mfd/wm8994/core.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm8994/core.h -- Core interface for WM8994 * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM8994_CORE_H__ diff --git a/include/linux/mfd/wm8994/gpio.h b/include/linux/mfd/wm8994/gpio.h index 0c79b5ff4b5a..723fa331776e 100644 --- a/include/linux/mfd/wm8994/gpio.h +++ b/include/linux/mfd/wm8994/gpio.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm8994/gpio.h - GPIO configuration for WM8994 * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM8994_GPIO_H__ diff --git a/include/linux/mfd/wm8994/pdata.h b/include/linux/mfd/wm8994/pdata.h index f346167c0e00..81e7dcbd94df 100644 --- a/include/linux/mfd/wm8994/pdata.h +++ b/include/linux/mfd/wm8994/pdata.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm8994/pdata.h -- Platform data for WM8994 * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM8994_PDATA_H__ diff --git a/include/linux/mfd/wm8994/registers.h b/include/linux/mfd/wm8994/registers.h index db8cef3d5321..8782a207faf7 100644 --- a/include/linux/mfd/wm8994/registers.h +++ b/include/linux/mfd/wm8994/registers.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mfd/wm8994/registers.h -- Register definitions for WM8994 * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __MFD_WM8994_REGISTERS_H__ diff --git a/include/linux/mfd/wm97xx.h b/include/linux/mfd/wm97xx.h index 45fb54f19d09..446a5546ceca 100644 --- a/include/linux/mfd/wm97xx.h +++ b/include/linux/mfd/wm97xx.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * wm97xx client interface * * Copyright (C) 2017 Robert Jarzmik - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef __LINUX_MFD_WM97XX_H diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h index 7361cd3fddc1..ad24554f11f9 100644 --- a/include/linux/micrel_phy.h +++ b/include/linux/micrel_phy.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/micrel_phy.h * * Micrel PHY IDs - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef _MICREL_PHY_H diff --git a/include/linux/mmc/sd.h b/include/linux/mmc/sd.h index ec94a5aa02bb..2236aa540faa 100644 --- a/include/linux/mmc/sd.h +++ b/include/linux/mmc/sd.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mmc/sd.h * * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. */ #ifndef LINUX_MMC_SD_H diff --git a/include/linux/mmc/sdio.h b/include/linux/mmc/sdio.h index 17446d3c3602..e28769991e82 100644 --- a/include/linux/mmc/sdio.h +++ b/include/linux/mmc/sdio.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mmc/sdio.h * * Copyright 2006-2007 Pierre Ossman - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. */ #ifndef LINUX_MMC_SDIO_H diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h index 5685805533b5..e9dfdd501cd1 100644 --- a/include/linux/mmc/sdio_func.h +++ b/include/linux/mmc/sdio_func.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/mmc/sdio_func.h * * Copyright 2007-2008 Pierre Ossman - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. */ #ifndef LINUX_MMC_SDIO_FUNC_H diff --git a/include/linux/mtd/physmap.h b/include/linux/mtd/physmap.h index aa6a2633c2da..bfaa9cc1dc84 100644 --- a/include/linux/mtd/physmap.h +++ b/include/linux/mtd/physmap.h @@ -1,15 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * For boards with physically mapped flash and using * drivers/mtd/maps/physmap.c mapping driver. * * Copyright (C) 2003 MontaVista Software Inc. * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __LINUX_MTD_PHYSMAP__ diff --git a/include/linux/mtd/super.h b/include/linux/mtd/super.h index f456230f9330..056c9932c723 100644 --- a/include/linux/mtd/super.h +++ b/include/linux/mtd/super.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* MTD-based superblock handling * * Copyright © 2006 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef __MTD_SUPER_H__ diff --git a/include/linux/mv643xx.h b/include/linux/mv643xx.h index 69327b7b4ce4..4471cf96ef69 100644 --- a/include/linux/mv643xx.h +++ b/include/linux/mv643xx.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * mv643xx.h - MV-643XX Internal registers definition file. * * Copyright 2002 Momentum Computer, Inc. * Author: Matthew Dharm * Copyright 2002 GALILEO TECHNOLOGY, LTD. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __ASM_MV643XX_H #define __ASM_MV643XX_H diff --git a/include/linux/mv643xx_i2c.h b/include/linux/mv643xx_i2c.h index 5db5152e9de5..b2844e1cac80 100644 --- a/include/linux/mv643xx_i2c.h +++ b/include/linux/mv643xx_i2c.h @@ -1,8 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef _MV64XXX_I2C_H_ diff --git a/include/linux/net.h b/include/linux/net.h index 50bf5206ead6..f7d672cf25b5 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * NET An implementation of the SOCKET network access protocol. * This is the master header file for the Linux NET layer, @@ -9,11 +10,6 @@ * Authors: Orest Zborowski, * Ross Biro * Fred N. van Kempen, - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_NET_H #define _LINUX_NET_H diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index 4c76fe2c8488..4b19c544c59a 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h @@ -1,11 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Network device features. - * - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_NETDEV_FEATURES_H #define _LINUX_NETDEV_FEATURES_H diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 44b47e9df94a..eeacebd7debb 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -15,11 +16,6 @@ * Bjorn Ekwall. * Pekka Riikonen * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * Moved to /usr/include/linux for NET3 */ #ifndef _LINUX_NETDEVICE_H diff --git a/include/linux/omap-gpmc.h b/include/linux/omap-gpmc.h index 053feb41510a..b7bf735960c2 100644 --- a/include/linux/omap-gpmc.h +++ b/include/linux/omap-gpmc.h @@ -1,10 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * OMAP GPMC (General Purpose Memory Controller) defines - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #include diff --git a/include/linux/phy.h b/include/linux/phy.h index 073fb151b5a9..6424586fe2d6 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Framework and drivers for configuring and reading different PHYs * Based on code in sungem_phy.c and (long-removed) gianfar_phy.c @@ -5,12 +6,6 @@ * Author: Andy Fleming * * Copyright (c) 2004 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __PHY_H diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index ef13aea1d370..15032f145063 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * phy.h -- generic phy header file * * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com * * Author: Kishon Vijay Abraham I - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef __DRIVERS_PHY_H diff --git a/include/linux/platform_data/dma-atmel.h b/include/linux/platform_data/dma-atmel.h index e95f19c65873..069637e6004f 100644 --- a/include/linux/platform_data/dma-atmel.h +++ b/include/linux/platform_data/dma-atmel.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Header file for the Atmel AHB DMA Controller driver * * Copyright (C) 2008 Atmel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef AT_HDMAC_H #define AT_HDMAC_H diff --git a/include/linux/platform_data/dma-s3c24xx.h b/include/linux/platform_data/dma-s3c24xx.h index 4f9aba405e96..96d02dbeea67 100644 --- a/include/linux/platform_data/dma-s3c24xx.h +++ b/include/linux/platform_data/dma-s3c24xx.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * S3C24XX DMA handling * * Copyright (c) 2013 Heiko Stuebner - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. */ /* Helper to encode the source selection constraints for early s3c socs. */ diff --git a/include/linux/platform_data/edma.h b/include/linux/platform_data/edma.h index 0a533f94438f..ee13d5ca630d 100644 --- a/include/linux/platform_data/edma.h +++ b/include/linux/platform_data/edma.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * TI EDMA definitions * * Copyright (C) 2006-2013 Texas Instruments. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ /* diff --git a/include/linux/platform_data/i2c-mux-reg.h b/include/linux/platform_data/i2c-mux-reg.h index c68712aadf43..2543c2a1c9ae 100644 --- a/include/linux/platform_data/i2c-mux-reg.h +++ b/include/linux/platform_data/i2c-mux-reg.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * I2C multiplexer using a single register * * Copyright 2015 Freescale Semiconductor * York Sun - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __LINUX_PLATFORM_DATA_I2C_MUX_REG_H diff --git a/include/linux/platform_data/isl9305.h b/include/linux/platform_data/isl9305.h index 4ac1a070af0a..6893fdaae7d4 100644 --- a/include/linux/platform_data/isl9305.h +++ b/include/linux/platform_data/isl9305.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * isl9305 - Intersil ISL9305 DCDC regulator * * Copyright 2014 Linaro Ltd * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __ISL9305_H diff --git a/include/linux/platform_data/ltc4245.h b/include/linux/platform_data/ltc4245.h index 56bda4be0016..f07fa05ea6c4 100644 --- a/include/linux/platform_data/ltc4245.h +++ b/include/linux/platform_data/ltc4245.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Platform Data for LTC4245 hardware monitor chip * * Copyright (c) 2010 Ira W. Snyder - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef LINUX_LTC4245_H diff --git a/include/linux/platform_data/mcs.h b/include/linux/platform_data/mcs.h index 61bb18a4fd3c..fcc6f2a1f5c3 100644 --- a/include/linux/platform_data/mcs.h +++ b/include/linux/platform_data/mcs.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2009 - 2010 Samsung Electronics Co.Ltd * Author: Joonyoung Shim * Author: HeungJun Kim - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #ifndef __LINUX_MCS_H diff --git a/include/linux/platform_data/media/coda.h b/include/linux/platform_data/media/coda.h index 6ad4410d9e20..293b61b60c9d 100644 --- a/include/linux/platform_data/media/coda.h +++ b/include/linux/platform_data/media/coda.h @@ -1,10 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2013 Philipp Zabel, Pengutronix - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef PLATFORM_CODA_H #define PLATFORM_CODA_H diff --git a/include/linux/platform_data/media/s5p_hdmi.h b/include/linux/platform_data/media/s5p_hdmi.h index bb9cacb0cbb0..457321e917b9 100644 --- a/include/linux/platform_data/media/s5p_hdmi.h +++ b/include/linux/platform_data/media/s5p_hdmi.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Driver header for S5P HDMI chip. * * Copyright (c) 2011 Samsung Electronics, Co. Ltd * Contact: Tomasz Stanislawski - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef S5P_HDMI_H diff --git a/include/linux/platform_data/mv_usb.h b/include/linux/platform_data/mv_usb.h index c0f624aca81c..5376b6d799d5 100644 --- a/include/linux/platform_data/mv_usb.h +++ b/include/linux/platform_data/mv_usb.h @@ -1,10 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2011 Marvell International Ltd. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef __MV_PLATFORM_USB_H diff --git a/include/linux/platform_data/omap-wd-timer.h b/include/linux/platform_data/omap-wd-timer.h index d75f5f802d98..f2788ec984e9 100644 --- a/include/linux/platform_data/omap-wd-timer.h +++ b/include/linux/platform_data/omap-wd-timer.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * OMAP2+ WDTIMER-specific function prototypes * * Copyright (C) 2012 Texas Instruments, Inc. * Paul Walmsley - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef __LINUX_PLATFORM_DATA_OMAP_WD_TIMER_H diff --git a/include/linux/platform_data/omapdss.h b/include/linux/platform_data/omapdss.h index 7feb011ed500..a377090d90e8 100644 --- a/include/linux/platform_data/omapdss.h +++ b/include/linux/platform_data/omapdss.h @@ -1,10 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2016 Texas Instruments, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef __OMAPDSS_PDATA_H diff --git a/include/linux/platform_data/serial-omap.h b/include/linux/platform_data/serial-omap.h index 2ba2c34ca3d3..0061d2451900 100644 --- a/include/linux/platform_data/serial-omap.h +++ b/include/linux/platform_data/serial-omap.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Driver for OMAP-UART controller. * Based on drivers/serial/8250.c @@ -7,11 +8,6 @@ * Authors: * Govindraj R * Thara Gopinath - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef __OMAP_SERIAL_H__ diff --git a/include/linux/platform_data/serial-sccnxp.h b/include/linux/platform_data/serial-sccnxp.h index af0c8c3b89ae..dc670f24e710 100644 --- a/include/linux/platform_data/serial-sccnxp.h +++ b/include/linux/platform_data/serial-sccnxp.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * NXP (Philips) SCC+++(SCN+++) serial driver * * Copyright (C) 2012 Alexander Shiyan * * Based on sc26xx.c, by Thomas Bogendörfer (tsbogend@alpha.franken.de) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef _PLATFORM_DATA_SERIAL_SCCNXP_H_ diff --git a/include/linux/platform_data/simplefb.h b/include/linux/platform_data/simplefb.h index 077303cedbf4..4f733a411d18 100644 --- a/include/linux/platform_data/simplefb.h +++ b/include/linux/platform_data/simplefb.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * simplefb.h - Simple Framebuffer Device * * Copyright (C) 2013 David Herrmann - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef __PLATFORM_DATA_SIMPLEFB_H__ diff --git a/include/linux/platform_data/spi-clps711x.h b/include/linux/platform_data/spi-clps711x.h index 301956e63143..efaa596848c9 100644 --- a/include/linux/platform_data/spi-clps711x.h +++ b/include/linux/platform_data/spi-clps711x.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * CLPS711X SPI bus driver definitions * * Copyright (C) 2012 Alexander Shiyan - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef ____LINUX_PLATFORM_DATA_SPI_CLPS711X_H diff --git a/include/linux/platform_data/video-nuc900fb.h b/include/linux/platform_data/video-nuc900fb.h index cec5ece765ed..3da504460c91 100644 --- a/include/linux/platform_data/video-nuc900fb.h +++ b/include/linux/platform_data/video-nuc900fb.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* linux/include/asm/arch-nuc900/fb.h * * Copyright (c) 2008 Nuvoton technology corporation * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * * Changelog: * * 2008/08/26 vincen.zswan modify this file for LCD. diff --git a/include/linux/ppp_channel.h b/include/linux/ppp_channel.h index 5d87f810a3b7..98966064ee68 100644 --- a/include/linux/ppp_channel.h +++ b/include/linux/ppp_channel.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _PPP_CHANNEL_H_ #define _PPP_CHANNEL_H_ /* @@ -11,11 +12,6 @@ * * Copyright 1999 Paul Mackerras. * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * ==FILEVERSION 20000322== */ diff --git a/include/linux/ptr_ring.h b/include/linux/ptr_ring.h index 8da46ac44a2e..0abe9a4fc842 100644 --- a/include/linux/ptr_ring.h +++ b/include/linux/ptr_ring.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Definitions for the 'struct ptr_ring' datastructure. * @@ -6,11 +7,6 @@ * * Copyright (C) 2016 Red Hat, Inc. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * * This is a limited-size FIFO maintaining pointers in FIFO order, with * one CPU producing entries and another consuming entries from a FIFO. * diff --git a/include/linux/regulator/fixed.h b/include/linux/regulator/fixed.h index f10140da7145..d44ce5f18a56 100644 --- a/include/linux/regulator/fixed.h +++ b/include/linux/regulator/fixed.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * fixed.h * @@ -7,11 +8,6 @@ * * Copyright (c) 2009 Nokia Corporation * Roger Quadros - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. */ #ifndef __REGULATOR_FIXED_H diff --git a/include/linux/regulator/gpio-regulator.h b/include/linux/regulator/gpio-regulator.h index 11cd6375215d..fdeb312cdabd 100644 --- a/include/linux/regulator/gpio-regulator.h +++ b/include/linux/regulator/gpio-regulator.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * gpio-regulator.h * @@ -11,11 +12,6 @@ * * Copyright (c) 2009 Nokia Corporation * Roger Quadros - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. */ #ifndef __REGULATOR_GPIO_H diff --git a/include/linux/remoteproc/st_slim_rproc.h b/include/linux/remoteproc/st_slim_rproc.h index 4155556fa4b2..a01ba0b7a6f2 100644 --- a/include/linux/remoteproc/st_slim_rproc.h +++ b/include/linux/remoteproc/st_slim_rproc.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * SLIM core rproc driver header * * Copyright (C) 2016 STMicroelectronics * * Author: Peter Griffin - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef _ST_REMOTEPROC_SLIM_H #define _ST_REMOTEPROC_SLIM_H diff --git a/include/linux/rio.h b/include/linux/rio.h index 37b95c4af99d..317bace5ac64 100644 --- a/include/linux/rio.h +++ b/include/linux/rio.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * RapidIO interconnect services * (RapidIO Interconnect Specification, http://www.rapidio.org) * * Copyright 2005 MontaVista Software, Inc. * Matt Porter - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef LINUX_RIO_H diff --git a/include/linux/rio_drv.h b/include/linux/rio_drv.h index 0834264fb7f2..d637742e5039 100644 --- a/include/linux/rio_drv.h +++ b/include/linux/rio_drv.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * RapidIO driver services * * Copyright 2005 MontaVista Software, Inc. * Matt Porter - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef LINUX_RIO_DRV_H diff --git a/include/linux/rio_ids.h b/include/linux/rio_ids.h index 334c576c151c..4846f72759b2 100644 --- a/include/linux/rio_ids.h +++ b/include/linux/rio_ids.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * RapidIO devices * * Copyright 2005 MontaVista Software, Inc. * Matt Porter - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef LINUX_RIO_IDS_H diff --git a/include/linux/rio_regs.h b/include/linux/rio_regs.h index 40c04efe7409..e97594325486 100644 --- a/include/linux/rio_regs.h +++ b/include/linux/rio_regs.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * RapidIO register definitions * * Copyright 2005 MontaVista Software, Inc. * Matt Porter - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #ifndef LINUX_RIO_REGS_H diff --git a/include/linux/sdla.h b/include/linux/sdla.h index fe7a967d7de4..00e8b3b614f0 100644 --- a/include/linux/sdla.h +++ b/include/linux/sdla.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -13,11 +14,6 @@ * 0.15 Mike McLagan Structure packing * * 0.20 Mike McLagan New flags for S508 buffer handling - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef SDLA_H #define SDLA_H diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index 5a655ba8d273..5e0b59422a68 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * linux/include/linux/serial_8250.h * * Copyright (C) 2004 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef _LINUX_SERIAL_8250_H #define _LINUX_SERIAL_8250_H diff --git a/include/linux/serial_max3100.h b/include/linux/serial_max3100.h index 4976befb6aeb..befd55c08a7c 100644 --- a/include/linux/serial_max3100.h +++ b/include/linux/serial_max3100.h @@ -1,11 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * * Copyright (C) 2007 Christian Pellegrin - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ diff --git a/include/linux/skb_array.h b/include/linux/skb_array.h index 62d9b0a6329f..e2d45b7cb619 100644 --- a/include/linux/skb_array.h +++ b/include/linux/skb_array.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Definitions for the 'struct skb_array' datastructure. * @@ -6,11 +7,6 @@ * * Copyright (C) 2016 Red Hat, Inc. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * * Limited-size FIFO of skbs. Can be used more or less whenever * sk_buff_head can be used, except you need to know the queue size in * advance. diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 2ee5e63195c0..056f557d5194 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Definitions for the 'struct sk_buff' memory handlers. * * Authors: * Alan Cox, * Florian La Roche, - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_SKBUFF_H diff --git a/include/linux/spi/cc2520.h b/include/linux/spi/cc2520.h index 85b8ee67e937..449bacf10700 100644 --- a/include/linux/spi/cc2520.h +++ b/include/linux/spi/cc2520.h @@ -1,14 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Header file for cc2520 radio driver * * Copyright (C) 2014 Varka Bhadram * Md.Jamal Mohiuddin * P Sowjanya - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * */ #ifndef __CC2520_H diff --git a/include/linux/spi/libertas_spi.h b/include/linux/spi/libertas_spi.h index 1b5d5384fcd3..156326d9b5cd 100644 --- a/include/linux/spi/libertas_spi.h +++ b/include/linux/spi/libertas_spi.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * board-specific data for the libertas_spi driver. * * Copyright 2008 Analog Devices Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. */ #ifndef _LIBERTAS_SPI_H_ #define _LIBERTAS_SPI_H_ diff --git a/include/linux/stmp_device.h b/include/linux/stmp_device.h index 6cf7ec9547cf..23046916a001 100644 --- a/include/linux/stmp_device.h +++ b/include/linux/stmp_device.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * basic functions for devices following the "stmp" style register layout * * Copyright (C) 2011 Wolfram Sang, Pengutronix e.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #ifndef __STMP_DEVICE_H__ diff --git a/include/linux/tcp.h b/include/linux/tcp.h index a9b0280687d5..711361af9ce0 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -8,11 +9,6 @@ * Version: @(#)tcp.h 1.0.2 04/28/93 * * Author: Fred N. van Kempen, - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_TCP_H #define _LINUX_TCP_H diff --git a/include/linux/tfrc.h b/include/linux/tfrc.h index 8a8462b4a4dd..a5acc768085d 100644 --- a/include/linux/tfrc.h +++ b/include/linux/tfrc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _LINUX_TFRC_H_ #define _LINUX_TFRC_H_ /* @@ -8,11 +9,6 @@ * Copyright (c) 2005 Ian McDonald * Copyright (c) 2005 Arnaldo Carvalho de Melo * Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #include diff --git a/include/linux/udp.h b/include/linux/udp.h index 2725c83395bf..aa84597bdc33 100644 --- a/include/linux/udp.h +++ b/include/linux/udp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -8,11 +9,6 @@ * Version: @(#)udp.h 1.0.2 04/28/93 * * Author: Fred N. van Kempen, - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_UDP_H #define _LINUX_UDP_H diff --git a/include/linux/uio.h b/include/linux/uio.h index 2d0131ad4604..2c90a0842ee8 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -1,10 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Berkeley style UIO structures - Alan Cox 1994. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef __LINUX_UIO_H #define __LINUX_UIO_H -- cgit v1.2.3 From de6cc6515a445d5d81cad2dee899a0be1a6317f8 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 27 May 2019 08:55:02 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 77 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Armijn Hemel Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.837555891@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/radix-tree.h | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) (limited to 'include/linux') diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h index 06c4c7a6c09c..b5116013f27e 100644 --- a/include/linux/radix-tree.h +++ b/include/linux/radix-tree.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2001 Momchil Velikov * Portions Copyright (C) 2001 Christoph Hellwig * Copyright (C) 2006 Nick Piggin * Copyright (C) 2012 Konstantin Khlebnikov - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2, or (at - * your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _LINUX_RADIX_TREE_H #define _LINUX_RADIX_TREE_H -- cgit v1.2.3 From 1a59d1b8e05ea6ab45f7e18897de1ef0e6bc3da6 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 27 May 2019 08:55:05 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/amba/kmi.h | 16 +--------------- include/linux/amba/serial.h | 15 +-------------- include/linux/arm-cci.h | 15 +-------------- include/linux/audit.h | 16 +--------------- include/linux/clk/zynq.h | 15 +-------------- include/linux/connector.h | 15 +-------------- include/linux/eeprom_93cx6.h | 15 +-------------- include/linux/fixp-arith.h | 14 +------------- include/linux/fsl_ifc.h | 15 +-------------- include/linux/hid-debug.h | 15 +-------------- include/linux/hid.h | 14 +------------- include/linux/hiddev.h | 14 +------------- include/linux/interval_tree_generic.h | 14 +------------- include/linux/irqchip/arm-vic.h | 15 +-------------- include/linux/joystick.h | 14 +------------- include/linux/kprobes.h | 15 +-------------- include/linux/mfd/as3722.h | 16 +--------------- include/linux/mfd/davinci_voicecodec.h | 15 +-------------- include/linux/mfd/twl.h | 16 +--------------- include/linux/mtd/ubi.h | 15 +-------------- include/linux/mxm-wmi.h | 15 +-------------- include/linux/omapfb.h | 15 +-------------- include/linux/platform_data/asoc-ti-mcbsp.h | 16 +--------------- include/linux/platform_data/g762.h | 15 +-------------- include/linux/platform_data/gpio-omap.h | 16 +--------------- include/linux/platform_data/keyscan-davinci.h | 15 +-------------- include/linux/platform_data/ntc_thermistor.h | 15 +-------------- include/linux/pm.h | 15 +-------------- include/linux/pm_wakeup.h | 15 +-------------- include/linux/power/bq24735-charger.h | 15 +-------------- include/linux/power/max17042_battery.h | 15 +-------------- include/linux/power/max8903_charger.h | 16 +--------------- include/linux/rbtree.h | 14 +------------- include/linux/rbtree_augmented.h | 14 +------------- include/linux/regulator/max1586.h | 15 +-------------- include/linux/regulator/max8952.h | 15 +-------------- include/linux/serial_core.h | 15 +-------------- include/linux/serial_pnx8xxx.h | 15 +-------------- include/linux/smsc911x.h | 15 +-------------- include/linux/uprobes.h | 15 +-------------- include/linux/usb/ccid.h | 14 +------------- include/linux/vringh.h | 15 +-------------- 42 files changed, 42 insertions(+), 587 deletions(-) (limited to 'include/linux') diff --git a/include/linux/amba/kmi.h b/include/linux/amba/kmi.h index a39e5be751b3..94dd727f1aea 100644 --- a/include/linux/amba/kmi.h +++ b/include/linux/amba/kmi.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * linux/include/asm-arm/hardware/amba_kmi.h * @@ -5,21 +6,6 @@ * * Copyright (C) 2000 Deep Blue Solutions Ltd. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * * --------------------------------------------------------------------------- * From ARM PrimeCell(tm) PS2 Keyboard/Mouse Interface (PL050) Technical * Reference Manual - ARM DDI 0143B - see http://www.arm.com/ diff --git a/include/linux/amba/serial.h b/include/linux/amba/serial.h index ad0965e21a5e..a1307b58cc2c 100644 --- a/include/linux/amba/serial.h +++ b/include/linux/amba/serial.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * linux/include/asm-arm/hardware/serial_amba.h * @@ -5,20 +6,6 @@ * * Copyright (C) ARM Limited * Copyright (C) 2000 Deep Blue Solutions Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef ASM_ARM_HARDWARE_SERIAL_AMBA_H #define ASM_ARM_HARDWARE_SERIAL_AMBA_H diff --git a/include/linux/arm-cci.h b/include/linux/arm-cci.h index 521ec1f2e6bc..d0e44201d855 100644 --- a/include/linux/arm-cci.h +++ b/include/linux/arm-cci.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * CCI cache coherent interconnect support * * Copyright (C) 2013 ARM Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __LINUX_ARM_CCI_H diff --git a/include/linux/audit.h b/include/linux/audit.h index 43a23e28ba23..3a4f2415bb7c 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -1,24 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* audit.h -- Auditing support * * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina. * All Rights Reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * * Written by Rickard E. (Rik) Faith - * */ #ifndef _LINUX_AUDIT_H_ #define _LINUX_AUDIT_H_ diff --git a/include/linux/clk/zynq.h b/include/linux/clk/zynq.h index 7a5633b71533..a198dd9255a4 100644 --- a/include/linux/clk/zynq.h +++ b/include/linux/clk/zynq.h @@ -1,20 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2013 Xilinx Inc. * Copyright (C) 2012 National Instruments - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __LINUX_CLK_ZYNQ_H_ diff --git a/include/linux/connector.h b/include/linux/connector.h index 032102b19645..1d72ef76f24f 100644 --- a/include/linux/connector.h +++ b/include/linux/connector.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * connector.h * * 2004-2005 Copyright (c) Evgeniy Polyakov * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __CONNECTOR_H #define __CONNECTOR_H diff --git a/include/linux/eeprom_93cx6.h b/include/linux/eeprom_93cx6.h index eb0b1988050a..c860c72a921d 100644 --- a/include/linux/eeprom_93cx6.h +++ b/include/linux/eeprom_93cx6.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Copyright (C) 2004 - 2006 rt2x00 SourceForge Project - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the - Free Software Foundation, Inc., - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* diff --git a/include/linux/fixp-arith.h b/include/linux/fixp-arith.h index d4686fe1cac7..8396013785ef 100644 --- a/include/linux/fixp-arith.h +++ b/include/linux/fixp-arith.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _FIXP_ARITH_H #define _FIXP_ARITH_H @@ -11,19 +12,6 @@ */ /* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Should you need to contact me, the author, you can do so by * e-mail - mail your message to diff --git a/include/linux/fsl_ifc.h b/include/linux/fsl_ifc.h index 5f343b796ad9..0af96a45e903 100644 --- a/include/linux/fsl_ifc.h +++ b/include/linux/fsl_ifc.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Freescale Integrated Flash Controller * * Copyright 2011 Freescale Semiconductor, Inc * * Author: Dipen Dudhat - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __ASM_FSL_IFC_H diff --git a/include/linux/hid-debug.h b/include/linux/hid-debug.h index 2d6100edf204..ea7b23d13bfd 100644 --- a/include/linux/hid-debug.h +++ b/include/linux/hid-debug.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef __HID_DEBUG_H #define __HID_DEBUG_H @@ -6,20 +7,6 @@ */ /* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ #ifdef CONFIG_DEBUG_FS diff --git a/include/linux/hid.h b/include/linux/hid.h index ae9da674b749..d770ab1a0479 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -1,22 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 1999 Andreas Gal * Copyright (c) 2000-2001 Vojtech Pavlik * Copyright (c) 2006-2007 Jiri Kosina */ /* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Should you need to contact me, the author, you can do so either by * e-mail - mail your message to , or by paper mail: diff --git a/include/linux/hiddev.h b/include/linux/hiddev.h index 921622222957..2164c03d2c72 100644 --- a/include/linux/hiddev.h +++ b/include/linux/hiddev.h @@ -1,22 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 1999-2000 Vojtech Pavlik * * Sponsored by SuSE */ /* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Should you need to contact me, the author, you can do so either by * e-mail - mail your message to , or by paper mail: diff --git a/include/linux/interval_tree_generic.h b/include/linux/interval_tree_generic.h index 1f97ce26cccc..855476145fe1 100644 --- a/include/linux/interval_tree_generic.h +++ b/include/linux/interval_tree_generic.h @@ -1,20 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Interval Trees (C) 2012 Michel Lespinasse - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA include/linux/interval_tree_generic.h */ diff --git a/include/linux/irqchip/arm-vic.h b/include/linux/irqchip/arm-vic.h index ba46c794b4e5..a158b97242c7 100644 --- a/include/linux/irqchip/arm-vic.h +++ b/include/linux/irqchip/arm-vic.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * arch/arm/include/asm/hardware/vic.h * * Copyright (c) ARM Limited 2003. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __ASM_ARM_HARDWARE_VIC_H #define __ASM_ARM_HARDWARE_VIC_H diff --git a/include/linux/joystick.h b/include/linux/joystick.h index 5153f5b9294c..41b833b012f5 100644 --- a/include/linux/joystick.h +++ b/include/linux/joystick.h @@ -1,22 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 1996-2000 Vojtech Pavlik * * Sponsored by SuSE */ /* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LINUX_JOYSTICK_H #define _LINUX_JOYSTICK_H diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 9a897256e481..443d9800ca3f 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _LINUX_KPROBES_H #define _LINUX_KPROBES_H /* * Kernel Probes (KProbes) * include/linux/kprobes.h * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * * Copyright (C) IBM Corporation, 2002, 2004 * * 2002-Oct Created by Vamsi Krishna S Kernel diff --git a/include/linux/mfd/as3722.h b/include/linux/mfd/as3722.h index b404a5af9bba..5162dfc7c24b 100644 --- a/include/linux/mfd/as3722.h +++ b/include/linux/mfd/as3722.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * as3722 definitions * @@ -6,21 +7,6 @@ * * Author: Florian Lobmaier * Author: Laxman Dewangan - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ #ifndef __LINUX_MFD_AS3722_H__ diff --git a/include/linux/mfd/davinci_voicecodec.h b/include/linux/mfd/davinci_voicecodec.h index 2c0127cb06c5..556375b91316 100644 --- a/include/linux/mfd/davinci_voicecodec.h +++ b/include/linux/mfd/davinci_voicecodec.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * DaVinci Voice Codec Core Interface for TI platforms * * Copyright (C) 2010 Texas Instruments, Inc * * Author: Miguel Aguilar - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __LINUX_MFD_DAVINCI_VOICECODEC_H_ diff --git a/include/linux/mfd/twl.h b/include/linux/mfd/twl.h index 9ad7828d9d34..44aff52a5002 100644 --- a/include/linux/mfd/twl.h +++ b/include/linux/mfd/twl.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * twl4030.h - header for TWL4030 PM and audio CODEC device * @@ -5,21 +6,6 @@ * * Based on tlv320aic23.c: * Copyright (c) by Kai Svahn - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ #ifndef __TWL_H_ diff --git a/include/linux/mtd/ubi.h b/include/linux/mtd/ubi.h index 1e271cb559cd..7d48ea368c5e 100644 --- a/include/linux/mtd/ubi.h +++ b/include/linux/mtd/ubi.h @@ -1,20 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) International Business Machines Corp., 2006 * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See - * the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * * Author: Artem Bityutskiy (Битюцкий Артём) */ diff --git a/include/linux/mxm-wmi.h b/include/linux/mxm-wmi.h index 617a2950523c..28b5b4c2a782 100644 --- a/include/linux/mxm-wmi.h +++ b/include/linux/mxm-wmi.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * MXM WMI driver * * Copyright(C) 2010 Red Hat. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef MXM_WMI_H diff --git a/include/linux/omapfb.h b/include/linux/omapfb.h index d1f4dccaeede..63c9d473e7de 100644 --- a/include/linux/omapfb.h +++ b/include/linux/omapfb.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * File: include/linux/omapfb.h * @@ -5,20 +6,6 @@ * * Copyright (C) 2004 Nokia Corporation * Author: Imre Deak - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef __LINUX_OMAPFB_H__ #define __LINUX_OMAPFB_H__ diff --git a/include/linux/platform_data/asoc-ti-mcbsp.h b/include/linux/platform_data/asoc-ti-mcbsp.h index e319d0a2ec82..cc8197760015 100644 --- a/include/linux/platform_data/asoc-ti-mcbsp.h +++ b/include/linux/platform_data/asoc-ti-mcbsp.h @@ -1,23 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Defines for Multi-Channel Buffered Serial Port * * Copyright (C) 2002 RidgeRun, Inc. * Author: Steve Johnson - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ #ifndef __ASOC_TI_MCBSP_H #define __ASOC_TI_MCBSP_H diff --git a/include/linux/platform_data/g762.h b/include/linux/platform_data/g762.h index d3c51283764d..249257ee2132 100644 --- a/include/linux/platform_data/g762.h +++ b/include/linux/platform_data/g762.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Platform data structure for g762 fan controller driver * * Copyright (C) 2013, Arnaud EBALARD - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __LINUX_PLATFORM_DATA_G762_H__ #define __LINUX_PLATFORM_DATA_G762_H__ diff --git a/include/linux/platform_data/gpio-omap.h b/include/linux/platform_data/gpio-omap.h index 7c36370c062e..17edc43201d2 100644 --- a/include/linux/platform_data/gpio-omap.h +++ b/include/linux/platform_data/gpio-omap.h @@ -1,24 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * OMAP GPIO handling defines and functions * * Copyright (C) 2003-2005 Nokia Corporation * * Written by Juha Yrjölä - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ #ifndef __ASM_ARCH_OMAP_GPIO_H diff --git a/include/linux/platform_data/keyscan-davinci.h b/include/linux/platform_data/keyscan-davinci.h index 7a560e05bda8..260d596ba0af 100644 --- a/include/linux/platform_data/keyscan-davinci.h +++ b/include/linux/platform_data/keyscan-davinci.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2009 Texas Instruments, Inc * * Author: Miguel Aguilar - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef DAVINCI_KEYSCAN_H diff --git a/include/linux/platform_data/ntc_thermistor.h b/include/linux/platform_data/ntc_thermistor.h index 5fa115d3ea4b..b324d03e580c 100644 --- a/include/linux/platform_data/ntc_thermistor.h +++ b/include/linux/platform_data/ntc_thermistor.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * ntc_thermistor.h - NTC Thermistors * * Copyright (C) 2010 Samsung Electronics * MyungJoo Ham - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LINUX_NTC_H #define _LINUX_NTC_H diff --git a/include/linux/pm.h b/include/linux/pm.h index 66c19a65a514..345d74a727e3 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * pm.h - Power management interface * * Copyright (C) 2000 Andrew Henroid - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LINUX_PM_H diff --git a/include/linux/pm_wakeup.h b/include/linux/pm_wakeup.h index 0ff134d6575a..ce57771fab9b 100644 --- a/include/linux/pm_wakeup.h +++ b/include/linux/pm_wakeup.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * pm_wakeup.h - Power management wakeup interface * * Copyright (C) 2008 Alan Stern * Copyright (C) 2010 Rafael J. Wysocki, Novell Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LINUX_PM_WAKEUP_H diff --git a/include/linux/power/bq24735-charger.h b/include/linux/power/bq24735-charger.h index b04be59f914c..321dd009ce66 100644 --- a/include/linux/power/bq24735-charger.h +++ b/include/linux/power/bq24735-charger.h @@ -1,18 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __CHARGER_BQ24735_H_ diff --git a/include/linux/power/max17042_battery.h b/include/linux/power/max17042_battery.h index a7ed29baf44a..4badd5322949 100644 --- a/include/linux/power/max17042_battery.h +++ b/include/linux/power/max17042_battery.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Fuel gauge driver for Maxim 17042 / 8966 / 8997 * Note that Maxim 8966 and 8997 are mfd and this is its subdevice. * * Copyright (C) 2011 Samsung Electronics * MyungJoo Ham - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __MAX17042_BATTERY_H_ diff --git a/include/linux/power/max8903_charger.h b/include/linux/power/max8903_charger.h index 89d3f1cb3433..02f94a1b323b 100644 --- a/include/linux/power/max8903_charger.h +++ b/include/linux/power/max8903_charger.h @@ -1,23 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * max8903_charger.h - Maxim 8903 USB/Adapter Charger Driver * * Copyright (C) 2011 Samsung Electronics * MyungJoo Ham - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ #ifndef __MAX8903_CHARGER_H__ diff --git a/include/linux/rbtree.h b/include/linux/rbtree.h index fcbeed4053ef..e6337fce08f2 100644 --- a/include/linux/rbtree.h +++ b/include/linux/rbtree.h @@ -1,20 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Red Black Trees (C) 1999 Andrea Arcangeli - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA linux/include/linux/rbtree.h diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h index 9510c677ac70..0f902ccb48b0 100644 --- a/include/linux/rbtree_augmented.h +++ b/include/linux/rbtree_augmented.h @@ -1,22 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Red Black Trees (C) 1999 Andrea Arcangeli (C) 2002 David Woodhouse (C) 2012 Michel Lespinasse - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA linux/include/linux/rbtree_augmented.h */ diff --git a/include/linux/regulator/max1586.h b/include/linux/regulator/max1586.h index cedd0febe882..969f4c948480 100644 --- a/include/linux/regulator/max1586.h +++ b/include/linux/regulator/max1586.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * max1586.h -- Voltage regulation for the Maxim 1586 * * Copyright (C) 2008 Robert Jarzmik - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef REGULATOR_MAX1586 diff --git a/include/linux/regulator/max8952.h b/include/linux/regulator/max8952.h index 686c42c041b5..ebd99d2e62ad 100644 --- a/include/linux/regulator/max8952.h +++ b/include/linux/regulator/max8952.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * max8952.h - Voltage regulation for the Maxim 8952 * * Copyright (C) 2010 Samsung Electrnoics * MyungJoo Ham - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef REGULATOR_MAX8952 diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index fea2216a893f..05b179015d6c 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * linux/drivers/char/serial_core.h * * Copyright (C) 2000 Deep Blue Solutions Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef LINUX_SERIAL_CORE_H #define LINUX_SERIAL_CORE_H diff --git a/include/linux/serial_pnx8xxx.h b/include/linux/serial_pnx8xxx.h index 79ad87b0be3e..619d748dcd44 100644 --- a/include/linux/serial_pnx8xxx.h +++ b/include/linux/serial_pnx8xxx.h @@ -1,19 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Embedded Alley Solutions, source@embeddedalley.com. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LINUX_SERIAL_PNX8XXX_H diff --git a/include/linux/smsc911x.h b/include/linux/smsc911x.h index eec3efd19beb..868348f7ea06 100644 --- a/include/linux/smsc911x.h +++ b/include/linux/smsc911x.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /*************************************************************************** * * Copyright (C) 2004-2008 SMSC * Copyright (C) 2005-2008 ARM * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * ***************************************************************************/ #ifndef __LINUX_SMSC911X_H__ #define __LINUX_SMSC911X_H__ diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h index 12bf0b68ed92..f46e0ca0169c 100644 --- a/include/linux/uprobes.h +++ b/include/linux/uprobes.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _LINUX_UPROBES_H #define _LINUX_UPROBES_H /* * User-space Probes (UProbes) * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * * Copyright (C) IBM Corporation, 2008-2012 * Authors: * Srikar Dronamraju diff --git a/include/linux/usb/ccid.h b/include/linux/usb/ccid.h index 3431446d6864..a3a73cf20028 100644 --- a/include/linux/usb/ccid.h +++ b/include/linux/usb/ccid.h @@ -1,20 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 2018 Vincent Pelletier */ /* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __CCID_H #define __CCID_H diff --git a/include/linux/vringh.h b/include/linux/vringh.h index bc6c28d04263..d237087eb257 100644 --- a/include/linux/vringh.h +++ b/include/linux/vringh.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Linux host-side vring helpers; for when the kernel needs to access * someone else's vring. @@ -5,20 +6,6 @@ * Copyright IBM Corporation, 2013. * Parts taken from drivers/vhost/vhost.c Copyright 2009 Red Hat, Inc. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * * Written by: Rusty Russell */ #ifndef _LINUX_VRINGH_H -- cgit v1.2.3 From c942fddf8793b2013be8c901b47d0a8dc02bf99f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 27 May 2019 08:55:06 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/acpi.h | 15 +-------------- include/linux/amba/pl022.h | 11 +---------- include/linux/delayacct.h | 12 +----------- include/linux/firmware/trusted_foundations.h | 11 +---------- include/linux/hmm.h | 11 +---------- include/linux/if_tun.h | 11 +---------- include/linux/iio/common/ssp_sensors.h | 12 +----------- include/linux/irqchip/irq-bcm2836.h | 11 +---------- include/linux/memcontrol.h | 11 +---------- include/linux/mfd/da8xx-cfgchip.h | 11 +---------- include/linux/mfd/da9062/core.h | 11 +---------- include/linux/mfd/da9062/registers.h | 11 +---------- include/linux/mfd/mxs-lradc.h | 11 +---------- include/linux/phy/omap_control_phy.h | 12 +----------- include/linux/phy/omap_usb.h | 12 +----------- include/linux/phy_led_triggers.h | 11 +---------- include/linux/platform_data/db8500_thermal.h | 11 +---------- include/linux/platform_data/elm.h | 12 +----------- include/linux/platform_data/media/camera-mx3.h | 11 +---------- include/linux/platform_data/sht3x.h | 12 +----------- include/linux/platform_data/usb-mx2.h | 11 +---------- include/linux/regulator/da9211.h | 11 +---------- include/linux/spi/mxs-spi.h | 11 +---------- include/linux/spi/pxa2xx_spi.h | 11 +---------- include/linux/stackdepot.h | 12 +----------- include/linux/timecounter.h | 11 +---------- include/linux/usb/pd.h | 11 +---------- include/linux/usb/pd_bdo.h | 11 +---------- include/linux/usb/pd_vdo.h | 11 +---------- include/linux/usb/tcpm.h | 11 +---------- include/linux/w1.h | 11 +---------- 31 files changed, 31 insertions(+), 321 deletions(-) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 98440df7fe42..d315d86844e4 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * acpi.h - ACPI Interface * * Copyright (C) 2001 Paul Diefenbaugh - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #ifndef _LINUX_ACPI_H diff --git a/include/linux/amba/pl022.h b/include/linux/amba/pl022.h index 854b7294f6c6..131b27c97209 100644 --- a/include/linux/amba/pl022.h +++ b/include/linux/amba/pl022.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/amba/pl022.h * @@ -10,16 +11,6 @@ * linux-2.6.17-rc3-mm1/drivers/spi/pxa2xx_spi.c * Initial adoption to PL022 by: * Sachin Verma - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _SSP_PL022_H diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h index 577d1b25fccd..2d3bdcccf5eb 100644 --- a/include/linux/delayacct.h +++ b/include/linux/delayacct.h @@ -1,17 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* delayacct.h - per-task delay accounting * * Copyright (C) Shailabh Nagar, IBM Corp. 2006 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See - * the GNU General Public License for more details. - * */ #ifndef _LINUX_DELAYACCT_H diff --git a/include/linux/firmware/trusted_foundations.h b/include/linux/firmware/trusted_foundations.h index 4064e7c74715..2549a2db56aa 100644 --- a/include/linux/firmware/trusted_foundations.h +++ b/include/linux/firmware/trusted_foundations.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 2013, NVIDIA Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ /* diff --git a/include/linux/hmm.h b/include/linux/hmm.h index 51ec27a84668..044a36d7c3f8 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2013 Red Hat Inc. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Authors: Jérôme Glisse */ /* diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h index 12e3eebf0ce6..5bda8cf457b6 100644 --- a/include/linux/if_tun.h +++ b/include/linux/if_tun.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Universal TUN/TAP device driver. * Copyright (C) 1999-2000 Maxim Krasnyansky - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __IF_TUN_H #define __IF_TUN_H diff --git a/include/linux/iio/common/ssp_sensors.h b/include/linux/iio/common/ssp_sensors.h index f4d1b0edb432..06c9b4b563b3 100644 --- a/include/linux/iio/common/ssp_sensors.h +++ b/include/linux/iio/common/ssp_sensors.h @@ -1,16 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2014, Samsung Electronics Co. Ltd. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef _SSP_SENSORS_H_ #define _SSP_SENSORS_H_ diff --git a/include/linux/irqchip/irq-bcm2836.h b/include/linux/irqchip/irq-bcm2836.h index 218a6e1b18d8..f224d6f9e550 100644 --- a/include/linux/irqchip/irq-bcm2836.h +++ b/include/linux/irqchip/irq-bcm2836.h @@ -1,17 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Root interrupt controller for the BCM2836 (Raspberry Pi 2). * * Copyright 2015 Broadcom - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #define LOCAL_CONTROL 0x000 diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index bc74d6a4407c..73fe0a700911 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* memcontrol.h - Memory Controller * * Copyright IBM Corporation, 2007 @@ -5,16 +6,6 @@ * * Copyright 2007 OpenVZ SWsoft Inc * Author: Pavel Emelianov - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_MEMCONTROL_H diff --git a/include/linux/mfd/da8xx-cfgchip.h b/include/linux/mfd/da8xx-cfgchip.h index 304985e288d2..93bbfc2c1d54 100644 --- a/include/linux/mfd/da8xx-cfgchip.h +++ b/include/linux/mfd/da8xx-cfgchip.h @@ -1,17 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * TI DaVinci DA8xx CHIPCFGx registers for syscon consumers. * * Copyright (C) 2016 David Lechner - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_MFD_DA8XX_CFGCHIP_H diff --git a/include/linux/mfd/da9062/core.h b/include/linux/mfd/da9062/core.h index 74d33a01ddae..ea0c670992de 100644 --- a/include/linux/mfd/da9062/core.h +++ b/include/linux/mfd/da9062/core.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2015-2017 Dialog Semiconductor - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __MFD_DA9062_CORE_H__ diff --git a/include/linux/mfd/da9062/registers.h b/include/linux/mfd/da9062/registers.h index 18d576aed902..fe04b708742b 100644 --- a/include/linux/mfd/da9062/registers.h +++ b/include/linux/mfd/da9062/registers.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2015-2017 Dialog Semiconductor - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __DA9062_H__ diff --git a/include/linux/mfd/mxs-lradc.h b/include/linux/mfd/mxs-lradc.h index 661a4521f723..ada3d81ee277 100644 --- a/include/linux/mfd/mxs-lradc.h +++ b/include/linux/mfd/mxs-lradc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Freescale MXS Low Resolution Analog-to-Digital Converter driver * @@ -5,16 +6,6 @@ * Copyright (c) 2016 Ksenija Stanojevic * * Author: Marek Vasut - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __MFD_MXS_LRADC_H diff --git a/include/linux/phy/omap_control_phy.h b/include/linux/phy/omap_control_phy.h index eb7d4a135a9e..aec57dd784f7 100644 --- a/include/linux/phy/omap_control_phy.h +++ b/include/linux/phy/omap_control_phy.h @@ -1,19 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * omap_control_phy.h - Header file for the PHY part of control module. * * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * * Author: Kishon Vijay Abraham I - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef __OMAP_CONTROL_PHY_H__ diff --git a/include/linux/phy/omap_usb.h b/include/linux/phy/omap_usb.h index 2e5fb870efa9..5973a6313529 100644 --- a/include/linux/phy/omap_usb.h +++ b/include/linux/phy/omap_usb.h @@ -1,19 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * omap_usb.h -- omap usb2 phy header file * * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * * Author: Kishon Vijay Abraham I - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef __DRIVERS_OMAP_USB2_H diff --git a/include/linux/phy_led_triggers.h b/include/linux/phy_led_triggers.h index 4587ce362535..3d507a8a6989 100644 --- a/include/linux/phy_led_triggers.h +++ b/include/linux/phy_led_triggers.h @@ -1,14 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Copyright (C) 2016 National Instruments Corp. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __PHY_LED_TRIGGERS #define __PHY_LED_TRIGGERS diff --git a/include/linux/platform_data/db8500_thermal.h b/include/linux/platform_data/db8500_thermal.h index 3bf60902e902..55e55750a165 100644 --- a/include/linux/platform_data/db8500_thermal.h +++ b/include/linux/platform_data/db8500_thermal.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * db8500_thermal.h - DB8500 Thermal Management Implementation * @@ -5,16 +6,6 @@ * Copyright (C) 2012 Linaro Ltd. * * Author: Hongbo Zhang - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _DB8500_THERMAL_H_ diff --git a/include/linux/platform_data/elm.h b/include/linux/platform_data/elm.h index fef4b081b736..0f491d8abfdd 100644 --- a/include/linux/platform_data/elm.h +++ b/include/linux/platform_data/elm.h @@ -1,18 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * BCH Error Location Module * * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef __ELM_H diff --git a/include/linux/platform_data/media/camera-mx3.h b/include/linux/platform_data/media/camera-mx3.h index a910dadc8258..781c004e5596 100644 --- a/include/linux/platform_data/media/camera-mx3.h +++ b/include/linux/platform_data/media/camera-mx3.h @@ -1,17 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * mx3_camera.h - i.MX3x camera driver header file * * Copyright (C) 2008, Guennadi Liakhovetski, DENX Software Engineering, - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _MX3_CAMERA_H_ diff --git a/include/linux/platform_data/sht3x.h b/include/linux/platform_data/sht3x.h index 2e5eea358194..14680d2a98f7 100644 --- a/include/linux/platform_data/sht3x.h +++ b/include/linux/platform_data/sht3x.h @@ -1,18 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2016 Sensirion AG, Switzerland * Author: David Frey * Author: Pascal Sachs - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef __SHT3X_H_ diff --git a/include/linux/platform_data/usb-mx2.h b/include/linux/platform_data/usb-mx2.h index 22d0b596262c..97a670f3d8fb 100644 --- a/include/linux/platform_data/usb-mx2.h +++ b/include/linux/platform_data/usb-mx2.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2009 Martin Fuzzey - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __ASM_ARCH_MX21_USBH diff --git a/include/linux/regulator/da9211.h b/include/linux/regulator/da9211.h index d1f2073e4d5f..0d3c0f0ebc1a 100644 --- a/include/linux/regulator/da9211.h +++ b/include/linux/regulator/da9211.h @@ -1,17 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * da9211.h - Regulator device driver for DA9211/DA9212 * /DA9213/DA9223/DA9214/DA9224/DA9215/DA9225 * Copyright (C) 2015 Dialog Semiconductor Ltd. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_REGULATOR_DA9211_H diff --git a/include/linux/spi/mxs-spi.h b/include/linux/spi/mxs-spi.h index 381d368b91b4..3c57d5e56edc 100644 --- a/include/linux/spi/mxs-spi.h +++ b/include/linux/spi/mxs-spi.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/linux/spi/mxs-spi.h * @@ -5,16 +6,6 @@ * * Copyright 2008 Embedded Alley Solutions, Inc. * Copyright 2009-2011 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_SPI_MXS_SPI_H__ diff --git a/include/linux/spi/pxa2xx_spi.h b/include/linux/spi/pxa2xx_spi.h index 6005f0126631..31f00c7f4f59 100644 --- a/include/linux/spi/pxa2xx_spi.h +++ b/include/linux/spi/pxa2xx_spi.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __linux_pxa2xx_spi_h #define __linux_pxa2xx_spi_h diff --git a/include/linux/stackdepot.h b/include/linux/stackdepot.h index 0805dee1b6b8..3efa97d482cb 100644 --- a/include/linux/stackdepot.h +++ b/include/linux/stackdepot.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * A generic stack depot implementation * @@ -5,17 +6,6 @@ * Copyright (C) 2016 Google, Inc. * * Based on code by Dmitry Chernenkov. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef _LINUX_STACKDEPOT_H diff --git a/include/linux/timecounter.h b/include/linux/timecounter.h index 2496ad4cfc99..754b74a2167f 100644 --- a/include/linux/timecounter.h +++ b/include/linux/timecounter.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * linux/include/linux/timecounter.h * * based on code that migrated away from * linux/include/linux/clocksource.h - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_TIMECOUNTER_H #define _LINUX_TIMECOUNTER_H diff --git a/include/linux/usb/pd.h b/include/linux/usb/pd.h index f2162e0fe531..145c38e351c2 100644 --- a/include/linux/usb/pd.h +++ b/include/linux/usb/pd.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2015-2017 Google, Inc - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_USB_PD_H diff --git a/include/linux/usb/pd_bdo.h b/include/linux/usb/pd_bdo.h index 90b94d9fea5d..033fe3e17141 100644 --- a/include/linux/usb/pd_bdo.h +++ b/include/linux/usb/pd_bdo.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2015-2017 Google, Inc - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_USB_PD_BDO_H diff --git a/include/linux/usb/pd_vdo.h b/include/linux/usb/pd_vdo.h index 2b64d23ace5c..781f4e98dd23 100644 --- a/include/linux/usb/pd_vdo.h +++ b/include/linux/usb/pd_vdo.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2015-2017 Google, Inc - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_USB_PD_VDO_H diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h index 36a15dcadc53..f516955a0cf4 100644 --- a/include/linux/usb/tcpm.h +++ b/include/linux/usb/tcpm.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2015-2017 Google, Inc - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_USB_TCPM_H diff --git a/include/linux/w1.h b/include/linux/w1.h index 3111585c371f..e0b5156f78fd 100644 --- a/include/linux/w1.h +++ b/include/linux/w1.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 2004 Evgeniy Polyakov - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_W1_H -- cgit v1.2.3 From 873e65bc09078e56eaa51af2c9c60da2fad6fdbf Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 27 May 2019 08:55:15 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 83 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.021731668@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/cpu_cooling.h | 13 +------------ include/linux/pageblock-flags.h | 14 +------------- include/linux/regulator/max8660.h | 14 +------------- 3 files changed, 3 insertions(+), 38 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cpu_cooling.h b/include/linux/cpu_cooling.h index de0dafb9399d..bae54bb7c048 100644 --- a/include/linux/cpu_cooling.h +++ b/include/linux/cpu_cooling.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/cpu_cooling.h * @@ -5,18 +6,6 @@ * Copyright (C) 2012 Amit Daniel * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/include/linux/pageblock-flags.h b/include/linux/pageblock-flags.h index 06a66327333d..c066fec5b74b 100644 --- a/include/linux/pageblock-flags.h +++ b/include/linux/pageblock-flags.h @@ -1,20 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Macros for manipulating and testing flags related to a * pageblock_nr_pages number of pages. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation version 2 of the License - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * * Copyright (C) IBM Corporation, 2006 * * Original author, Mel Gorman diff --git a/include/linux/regulator/max8660.h b/include/linux/regulator/max8660.h index f8a6a4844864..e1b9f9020eed 100644 --- a/include/linux/regulator/max8660.h +++ b/include/linux/regulator/max8660.h @@ -1,20 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * max8660.h -- Voltage regulation for the Maxim 8660/8661 * * Copyright (C) 2009 Wolfram Sang, Pengutronix e.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __LINUX_REGULATOR_MAX8660_H -- cgit v1.2.3 From 1802d0beecafe581ad584634ba92f8a471d8a63a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 27 May 2019 08:55:21 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/bitfield.h | 10 +--------- include/linux/dma-fence-array.h | 10 +--------- include/linux/dma-fence-chain.h | 10 +--------- include/linux/dma-fence.h | 10 +--------- include/linux/fsi.h | 10 +--------- include/linux/ieee802154.h | 10 +--------- include/linux/intel-pti.h | 10 +--------- include/linux/mISDNhw.h | 11 +---------- include/linux/mfd/mt6397/core.h | 10 +--------- include/linux/mfd/mt6397/registers.h | 10 +--------- include/linux/nl802154.h | 11 +---------- include/linux/platform_data/remoteproc-omap.h | 10 +--------- include/linux/platform_data/wkup_m3.h | 10 +--------- include/linux/psci.h | 9 +-------- include/linux/regulator/mt6311.h | 10 +--------- include/linux/regulator/mt6323-regulator.h | 10 +--------- include/linux/regulator/mt6380-regulator.h | 10 +--------- include/linux/regulator/mt6397-regulator.h | 10 +--------- include/linux/seqno-fence.h | 10 +--------- include/linux/spi/at86rf230.h | 10 +--------- include/linux/spi/l4f00242t03.h | 10 +--------- include/linux/spi/lms283gf05.h | 10 +--------- include/linux/spi/spi-fsl-dspi.h | 10 +--------- include/linux/spi/tle62x0.h | 10 +--------- include/linux/uuid.h | 10 +--------- include/linux/vexpress.h | 9 +-------- include/linux/wmi.h | 10 +--------- 27 files changed, 27 insertions(+), 243 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bitfield.h b/include/linux/bitfield.h index 3f1ef4450a7c..4bbb5f1c8b5b 100644 --- a/include/linux/bitfield.h +++ b/include/linux/bitfield.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014 Felix Fietkau * Copyright (C) 2004 - 2009 Ivo van Doorn - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_BITFIELD_H diff --git a/include/linux/dma-fence-array.h b/include/linux/dma-fence-array.h index c0ff417b4770..303dd712220f 100644 --- a/include/linux/dma-fence-array.h +++ b/include/linux/dma-fence-array.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * fence-array: aggregates fence to be waited together * @@ -6,15 +7,6 @@ * Authors: * Gustavo Padovan * Christian König - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef __LINUX_DMA_FENCE_ARRAY_H diff --git a/include/linux/dma-fence-chain.h b/include/linux/dma-fence-chain.h index 934a442db8ac..10462a029da2 100644 --- a/include/linux/dma-fence-chain.h +++ b/include/linux/dma-fence-chain.h @@ -1,18 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * fence-chain: chain fences together in a timeline * * Copyright (C) 2018 Advanced Micro Devices, Inc. * Authors: * Christian König - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef __LINUX_DMA_FENCE_CHAIN_H diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h index 974717d6ac0c..05d29dbc7e62 100644 --- a/include/linux/dma-fence.h +++ b/include/linux/dma-fence.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Fence mechanism for dma-buf to allow for asynchronous dma access * @@ -7,15 +8,6 @@ * Authors: * Rob Clark * Maarten Lankhorst - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef __LINUX_DMA_FENCE_H diff --git a/include/linux/fsi.h b/include/linux/fsi.h index ec3be0d5b786..3df8c54868df 100644 --- a/include/linux/fsi.h +++ b/include/linux/fsi.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* FSI device & driver interfaces * * Copyright (C) IBM Corporation 2016 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef LINUX_FSI_H diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h index ddb890174a0e..95c831162212 100644 --- a/include/linux/ieee802154.h +++ b/include/linux/ieee802154.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * IEEE802.15.4-2003 specification * * Copyright (C) 2007, 2008 Siemens AG * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by: * Pavel Smolenskiy * Maxim Gorbachyov diff --git a/include/linux/intel-pti.h b/include/linux/intel-pti.h index 2710d72de3c9..fcd841a90f2f 100644 --- a/include/linux/intel-pti.h +++ b/include/linux/intel-pti.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) Intel 2011 * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * The PTI (Parallel Trace Interface) driver directs trace data routed from diff --git a/include/linux/mISDNhw.h b/include/linux/mISDNhw.h index 9d96d5d4dfed..ef4f8eb02eac 100644 --- a/include/linux/mISDNhw.h +++ b/include/linux/mISDNhw.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * * Author Karsten Keil @@ -5,16 +6,6 @@ * Basic declarations for the mISDN HW channels * * Copyright 2008 by Karsten Keil - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef MISDNHW_H diff --git a/include/linux/mfd/mt6397/core.h b/include/linux/mfd/mt6397/core.h index d678f526e498..25a95e72179b 100644 --- a/include/linux/mfd/mt6397/core.h +++ b/include/linux/mfd/mt6397/core.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2014 MediaTek Inc. * Author: Flora Fu, MediaTek - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __MFD_MT6397_CORE_H__ diff --git a/include/linux/mfd/mt6397/registers.h b/include/linux/mfd/mt6397/registers.h index f23a0a60a877..34d140627a27 100644 --- a/include/linux/mfd/mt6397/registers.h +++ b/include/linux/mfd/mt6397/registers.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2014 MediaTek Inc. * Author: Flora Fu, MediaTek - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __MFD_MT6397_REGISTERS_H__ diff --git a/include/linux/nl802154.h b/include/linux/nl802154.h index 0f6f6607f592..b22782225f27 100644 --- a/include/linux/nl802154.h +++ b/include/linux/nl802154.h @@ -1,17 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * nl802154.h * * Copyright (C) 2007, 2008, 2009 Siemens AG - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef NL802154_H diff --git a/include/linux/platform_data/remoteproc-omap.h b/include/linux/platform_data/remoteproc-omap.h index 71a1b2399c48..7e3a16097672 100644 --- a/include/linux/platform_data/remoteproc-omap.h +++ b/include/linux/platform_data/remoteproc-omap.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Remote Processor - omap-specific bits * * Copyright (C) 2011 Texas Instruments, Inc. * Copyright (C) 2011 Google, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _PLAT_REMOTEPROC_H diff --git a/include/linux/platform_data/wkup_m3.h b/include/linux/platform_data/wkup_m3.h index 3f1d77effd71..629660ff5806 100644 --- a/include/linux/platform_data/wkup_m3.h +++ b/include/linux/platform_data/wkup_m3.h @@ -1,18 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * TI Wakeup M3 remote processor platform data * * Copyright (C) 2014-2015 Texas Instruments, Inc. * * Dave Gerlach - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_PLATFORM_DATA_WKUP_M3_H diff --git a/include/linux/psci.h b/include/linux/psci.h index 8b1b3b5935ab..a8a15613c157 100644 --- a/include/linux/psci.h +++ b/include/linux/psci.h @@ -1,12 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. * * Copyright (C) 2015 ARM Limited */ diff --git a/include/linux/regulator/mt6311.h b/include/linux/regulator/mt6311.h index 8473259395b6..eb20c9d1ad46 100644 --- a/include/linux/regulator/mt6311.h +++ b/include/linux/regulator/mt6311.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2015 MediaTek Inc. * Author: Henry Chen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_REGULATOR_MT6311_H diff --git a/include/linux/regulator/mt6323-regulator.h b/include/linux/regulator/mt6323-regulator.h index 67011cd1ce55..c8103b8175b3 100644 --- a/include/linux/regulator/mt6323-regulator.h +++ b/include/linux/regulator/mt6323-regulator.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2016 MediaTek Inc. * Author: Chen Zhong - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_REGULATOR_MT6323_H diff --git a/include/linux/regulator/mt6380-regulator.h b/include/linux/regulator/mt6380-regulator.h index 465182da6315..9e90ce9b14e6 100644 --- a/include/linux/regulator/mt6380-regulator.h +++ b/include/linux/regulator/mt6380-regulator.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2017 MediaTek Inc. * Author: Chenglin Xu - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_REGULATOR_mt6380_H diff --git a/include/linux/regulator/mt6397-regulator.h b/include/linux/regulator/mt6397-regulator.h index 30cc5963e265..99b266711b3e 100644 --- a/include/linux/regulator/mt6397-regulator.h +++ b/include/linux/regulator/mt6397-regulator.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2014 MediaTek Inc. * Author: Flora Fu - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_REGULATOR_MT6397_H diff --git a/include/linux/seqno-fence.h b/include/linux/seqno-fence.h index c58c535d12a8..3cca2b8fac43 100644 --- a/include/linux/seqno-fence.h +++ b/include/linux/seqno-fence.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * seqno-fence, using a dma-buf to synchronize fencing * @@ -6,15 +7,6 @@ * Authors: * Rob Clark * Maarten Lankhorst - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef __LINUX_SEQNO_FENCE_H diff --git a/include/linux/spi/at86rf230.h b/include/linux/spi/at86rf230.h index b63fe6f5fdc8..d278576ab692 100644 --- a/include/linux/spi/at86rf230.h +++ b/include/linux/spi/at86rf230.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AT86RF230/RF231 driver * * Copyright (C) 2009-2012 Siemens AG * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by: * Dmitry Eremin-Solenikov */ diff --git a/include/linux/spi/l4f00242t03.h b/include/linux/spi/l4f00242t03.h index e69e9b51b21a..831a5de7a0e2 100644 --- a/include/linux/spi/l4f00242t03.h +++ b/include/linux/spi/l4f00242t03.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * l4f00242t03.h -- Platform glue for Epson L4F00242T03 LCD * * Copyright (c) 2009 Alberto Panizzo * Based on Marek Vasut work in lms283gf05.h - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _INCLUDE_LINUX_SPI_L4F00242T03_H_ diff --git a/include/linux/spi/lms283gf05.h b/include/linux/spi/lms283gf05.h index fdd1d1d51da5..f237b2d062e9 100644 --- a/include/linux/spi/lms283gf05.h +++ b/include/linux/spi/lms283gf05.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * lms283gf05.h - Platform glue for Samsung LMS283GF05 LCD * * Copyright (C) 2009 Marek Vasut - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _INCLUDE_LINUX_SPI_LMS283GF05_H_ diff --git a/include/linux/spi/spi-fsl-dspi.h b/include/linux/spi/spi-fsl-dspi.h index 74c9bae20bf2..02b250aac7cf 100644 --- a/include/linux/spi/spi-fsl-dspi.h +++ b/include/linux/spi/spi-fsl-dspi.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Freescale DSPI controller driver * * Copyright (c) 2017 Angelo Dureghello - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef SPI_FSL_DSPI_HEADER_H diff --git a/include/linux/spi/tle62x0.h b/include/linux/spi/tle62x0.h index 414c6fddfcf0..5d74b9fffca2 100644 --- a/include/linux/spi/tle62x0.h +++ b/include/linux/spi/tle62x0.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * tle62x0.h - platform glue to Infineon TLE62x0 driver chips * * Copyright 2007 Simtec Electronics * Ben Dooks - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ struct tle62x0_pdata { diff --git a/include/linux/uuid.h b/include/linux/uuid.h index d9c4a6cce3c2..0c631e2a73b6 100644 --- a/include/linux/uuid.h +++ b/include/linux/uuid.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * UUID/GUID definition * * Copyright (C) 2010, 2016 Intel Corp. * Huang Ying - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation; - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_UUID_H_ #define _LINUX_UUID_H_ diff --git a/include/linux/vexpress.h b/include/linux/vexpress.h index f8e76e08ebe4..0e130b5077a5 100644 --- a/include/linux/vexpress.h +++ b/include/linux/vexpress.h @@ -1,12 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. * * Copyright (C) 2012 ARM Limited */ diff --git a/include/linux/wmi.h b/include/linux/wmi.h index 592f81afecbb..fcc9d029f67a 100644 --- a/include/linux/wmi.h +++ b/include/linux/wmi.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * wmi.h - ACPI WMI interface * * Copyright (c) 2015 Andrew Lutomirski - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. */ #ifndef _LINUX_WMI_H -- cgit v1.2.3 From 82c298100a2db7e4241e0fee73d94dc5ee573837 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 09:57:05 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 176 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 44 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Steve Winslow Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170025.980374610@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/enclosure.h | 13 +------------ include/linux/ks8842.h | 14 +------------- include/linux/ks8851_mll.h | 14 +------------- include/linux/pch_dma.h | 14 +------------- include/linux/platform_data/i2c-xiic.h | 14 +------------- include/linux/platform_data/media/timb_radio.h | 14 +------------- include/linux/platform_data/media/timb_video.h | 14 +------------- include/linux/timb_dma.h | 14 +------------- include/linux/timb_gpio.h | 14 +------------- 9 files changed, 9 insertions(+), 116 deletions(-) (limited to 'include/linux') diff --git a/include/linux/enclosure.h b/include/linux/enclosure.h index a4cf57cd0f75..564e96f625ff 100644 --- a/include/linux/enclosure.h +++ b/include/linux/enclosure.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Enclosure Services * @@ -5,18 +6,6 @@ * **----------------------------------------------------------------------------- ** -** This program is free software; you can redistribute it and/or -** modify it under the terms of the GNU General Public License -** version 2 as published by the Free Software Foundation. -** -** This program is distributed in the hope that it will be useful, -** but WITHOUT ANY WARRANTY; without even the implied warranty of -** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -** GNU General Public License for more details. -** -** You should have received a copy of the GNU General Public License -** along with this program; if not, write to the Free Software -** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. ** **----------------------------------------------------------------------------- */ diff --git a/include/linux/ks8842.h b/include/linux/ks8842.h index 14ba4452296e..96ffdf3cbe21 100644 --- a/include/linux/ks8842.h +++ b/include/linux/ks8842.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ks8842.h KS8842 platform data struct definition * Copyright (c) 2010 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _LINUX_KS8842_H diff --git a/include/linux/ks8851_mll.h b/include/linux/ks8851_mll.h index e9ccfb59ed30..57c0a39ed796 100644 --- a/include/linux/ks8851_mll.h +++ b/include/linux/ks8851_mll.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ks8861_mll platform data struct definition * Copyright (c) 2012 BTicino S.p.A. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _LINUX_KS8851_MLL_H diff --git a/include/linux/pch_dma.h b/include/linux/pch_dma.h index fdafe529ef8a..d5a6a4b6b431 100644 --- a/include/linux/pch_dma.h +++ b/include/linux/pch_dma.h @@ -1,18 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2010 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef PCH_DMA_H diff --git a/include/linux/platform_data/i2c-xiic.h b/include/linux/platform_data/i2c-xiic.h index 4f9f2256a97e..2e3683c2398d 100644 --- a/include/linux/platform_data/i2c-xiic.h +++ b/include/linux/platform_data/i2c-xiic.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * i2c-xiic.h * Copyright (c) 2009 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Supports: diff --git a/include/linux/platform_data/media/timb_radio.h b/include/linux/platform_data/media/timb_radio.h index a40a6a348d21..109a0d4a4f07 100644 --- a/include/linux/platform_data/media/timb_radio.h +++ b/include/linux/platform_data/media/timb_radio.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * timb_radio.h Platform struct for the Timberdale radio driver * Copyright (c) 2009 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _TIMB_RADIO_ diff --git a/include/linux/platform_data/media/timb_video.h b/include/linux/platform_data/media/timb_video.h index 70ae43970a49..38764cc09b4f 100644 --- a/include/linux/platform_data/media/timb_video.h +++ b/include/linux/platform_data/media/timb_video.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * timb_video.h Platform struct for the Timberdale video driver * Copyright (c) 2009-2010 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _TIMB_VIDEO_ diff --git a/include/linux/timb_dma.h b/include/linux/timb_dma.h index bb043e970b96..33ad3b0ab8ea 100644 --- a/include/linux/timb_dma.h +++ b/include/linux/timb_dma.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * timb_dma.h timberdale FPGA DMA driver defines * Copyright (c) 2010 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Supports: diff --git a/include/linux/timb_gpio.h b/include/linux/timb_gpio.h index ce456eaae861..3faf5a6bb13e 100644 --- a/include/linux/timb_gpio.h +++ b/include/linux/timb_gpio.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * timb_gpio.h timberdale FPGA GPIO driver, platform data definition * Copyright (c) 2009 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _LINUX_TIMB_GPIO_H -- cgit v1.2.3 From fda8d26e61fc518499ddc78ae74ec1aaa89c4134 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 09:57:06 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177 Based on 1 normalized pattern(s): licensed under the gpl 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 135 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Reviewed-by: Alexios Zavras Reviewed-by: Steve Winslow Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170026.071193225@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/iio/adc/ad_sigma_delta.h | 3 +-- include/linux/iio/buffer-dma.h | 3 +-- include/linux/iio/common/st_sensors.h | 3 +-- include/linux/iio/common/st_sensors_i2c.h | 3 +-- include/linux/iio/common/st_sensors_spi.h | 3 +-- include/linux/iio/dac/ad5504.h | 3 +-- include/linux/iio/dac/ad5791.h | 3 +-- include/linux/iio/frequency/ad9523.h | 3 +-- include/linux/iio/frequency/adf4350.h | 3 +-- include/linux/input/adp5589.h | 3 +-- include/linux/platform_data/ad5449.h | 3 +-- include/linux/platform_data/ad5755.h | 3 +-- include/linux/platform_data/ad5761.h | 3 +-- include/linux/platform_data/ad7266.h | 3 +-- include/linux/platform_data/ad7298.h | 3 +-- include/linux/platform_data/ad7303.h | 3 +-- include/linux/platform_data/ad7793.h | 3 +-- include/linux/platform_data/adau1977.h | 3 +-- include/linux/platform_data/ssm2518.h | 3 +-- include/linux/platform_data/st_sensors_pdata.h | 3 +-- 20 files changed, 20 insertions(+), 40 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iio/adc/ad_sigma_delta.h b/include/linux/iio/adc/ad_sigma_delta.h index 6e9fb1932dde..7716fa0c9fce 100644 --- a/include/linux/iio/adc/ad_sigma_delta.h +++ b/include/linux/iio/adc/ad_sigma_delta.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Support code for Analog Devices Sigma-Delta ADCs * * Copyright 2012 Analog Devices Inc. * Author: Lars-Peter Clausen - * - * Licensed under the GPL-2. */ #ifndef __AD_SIGMA_DELTA_H__ #define __AD_SIGMA_DELTA_H__ diff --git a/include/linux/iio/buffer-dma.h b/include/linux/iio/buffer-dma.h index 67c75372b691..016d8a068353 100644 --- a/include/linux/iio/buffer-dma.h +++ b/include/linux/iio/buffer-dma.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2013-2015 Analog Devices Inc. * Author: Lars-Peter Clausen - * - * Licensed under the GPL-2. */ #ifndef __INDUSTRIALIO_DMA_BUFFER_H__ diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h index 45e9667f0a8c..2948ac99e2da 100644 --- a/include/linux/iio/common/st_sensors.h +++ b/include/linux/iio/common/st_sensors.h @@ -1,11 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * STMicroelectronics sensors library driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca - * - * Licensed under the GPL-2. */ #ifndef ST_SENSORS_H diff --git a/include/linux/iio/common/st_sensors_i2c.h b/include/linux/iio/common/st_sensors_i2c.h index 0a2c25e06d1f..5ada89944698 100644 --- a/include/linux/iio/common/st_sensors_i2c.h +++ b/include/linux/iio/common/st_sensors_i2c.h @@ -1,11 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * STMicroelectronics sensors i2c library driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca - * - * Licensed under the GPL-2. */ #ifndef ST_SENSORS_I2C_H diff --git a/include/linux/iio/common/st_sensors_spi.h b/include/linux/iio/common/st_sensors_spi.h index d964a3563dc6..6020f7167859 100644 --- a/include/linux/iio/common/st_sensors_spi.h +++ b/include/linux/iio/common/st_sensors_spi.h @@ -1,11 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * STMicroelectronics sensors spi library driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca - * - * Licensed under the GPL-2. */ #ifndef ST_SENSORS_SPI_H diff --git a/include/linux/iio/dac/ad5504.h b/include/linux/iio/dac/ad5504.h index 43895376a9ca..9f23c90486ee 100644 --- a/include/linux/iio/dac/ad5504.h +++ b/include/linux/iio/dac/ad5504.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AD5504 SPI DAC driver * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #ifndef SPI_AD5504_H_ diff --git a/include/linux/iio/dac/ad5791.h b/include/linux/iio/dac/ad5791.h index 45ee281c6660..02966553f71e 100644 --- a/include/linux/iio/dac/ad5791.h +++ b/include/linux/iio/dac/ad5791.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AD5791 SPI DAC driver * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #ifndef SPI_AD5791_H_ diff --git a/include/linux/iio/frequency/ad9523.h b/include/linux/iio/frequency/ad9523.h index 621b93c0bcf9..ff22a0ac15f5 100644 --- a/include/linux/iio/frequency/ad9523.h +++ b/include/linux/iio/frequency/ad9523.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AD9523 SPI Low Jitter Clock Generator * * Copyright 2012 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #ifndef IIO_FREQUENCY_AD9523_H_ diff --git a/include/linux/iio/frequency/adf4350.h b/include/linux/iio/frequency/adf4350.h index ffd8c8f90928..ce9490bfeb89 100644 --- a/include/linux/iio/frequency/adf4350.h +++ b/include/linux/iio/frequency/adf4350.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ADF4350/ADF4351 SPI PLL driver * * Copyright 2012-2013 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #ifndef IIO_PLL_ADF4350_H_ diff --git a/include/linux/input/adp5589.h b/include/linux/input/adp5589.h index 1a05eee15e67..c0523af96893 100644 --- a/include/linux/input/adp5589.h +++ b/include/linux/input/adp5589.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Analog Devices ADP5589/ADP5585 I/O Expander and QWERTY Keypad Controller * * Copyright 2010-2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #ifndef _ADP5589_H diff --git a/include/linux/platform_data/ad5449.h b/include/linux/platform_data/ad5449.h index bd712bd4b94e..d687ef5726c2 100644 --- a/include/linux/platform_data/ad5449.h +++ b/include/linux/platform_data/ad5449.h @@ -1,11 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AD5415, AD5426, AD5429, AD5432, AD5439, AD5443, AD5449 Digital to Analog * Converter driver. * * Copyright 2012 Analog Devices Inc. * Author: Lars-Peter Clausen - * - * Licensed under the GPL-2. */ #ifndef __LINUX_PLATFORM_DATA_AD5449_H__ diff --git a/include/linux/platform_data/ad5755.h b/include/linux/platform_data/ad5755.h index a5a1cb751874..e371e08f04bc 100644 --- a/include/linux/platform_data/ad5755.h +++ b/include/linux/platform_data/ad5755.h @@ -1,7 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2012 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #ifndef __LINUX_PLATFORM_DATA_AD5755_H__ #define __LINUX_PLATFORM_DATA_AD5755_H__ diff --git a/include/linux/platform_data/ad5761.h b/include/linux/platform_data/ad5761.h index 7bd8ed7d978e..02bef5177ff5 100644 --- a/include/linux/platform_data/ad5761.h +++ b/include/linux/platform_data/ad5761.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AD5721, AD5721R, AD5761, AD5761R, Voltage Output Digital to Analog Converter * * Copyright 2016 Qtechnology A/S * 2016 Ricardo Ribalda - * - * Licensed under the GPL-2. */ #ifndef __LINUX_PLATFORM_DATA_AD5761_H__ #define __LINUX_PLATFORM_DATA_AD5761_H__ diff --git a/include/linux/platform_data/ad7266.h b/include/linux/platform_data/ad7266.h index eabfdcb26992..7de6c16122df 100644 --- a/include/linux/platform_data/ad7266.h +++ b/include/linux/platform_data/ad7266.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AD7266/65 SPI ADC driver * * Copyright 2012 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #ifndef __IIO_ADC_AD7266_H__ diff --git a/include/linux/platform_data/ad7298.h b/include/linux/platform_data/ad7298.h index fbf8adf1363a..3e0ffe2d5d3d 100644 --- a/include/linux/platform_data/ad7298.h +++ b/include/linux/platform_data/ad7298.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AD7298 SPI ADC driver * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #ifndef __LINUX_PLATFORM_DATA_AD7298_H__ diff --git a/include/linux/platform_data/ad7303.h b/include/linux/platform_data/ad7303.h index de6a7a6b4bbf..c2bd0a13bea1 100644 --- a/include/linux/platform_data/ad7303.h +++ b/include/linux/platform_data/ad7303.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Analog Devices AD7303 DAC driver * * Copyright 2013 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #ifndef __IIO_ADC_AD7303_H__ diff --git a/include/linux/platform_data/ad7793.h b/include/linux/platform_data/ad7793.h index 7ea6751aae6d..576c7f962c4e 100644 --- a/include/linux/platform_data/ad7793.h +++ b/include/linux/platform_data/ad7793.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AD7792/AD7793 SPI ADC driver * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #ifndef __LINUX_PLATFORM_DATA_AD7793_H__ #define __LINUX_PLATFORM_DATA_AD7793_H__ diff --git a/include/linux/platform_data/adau1977.h b/include/linux/platform_data/adau1977.h index bed11d908f92..86667235077a 100644 --- a/include/linux/platform_data/adau1977.h +++ b/include/linux/platform_data/adau1977.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ADAU1977/ADAU1978/ADAU1979 driver * * Copyright 2014 Analog Devices Inc. * Author: Lars-Peter Clausen - * - * Licensed under the GPL-2. */ #ifndef __LINUX_PLATFORM_DATA_ADAU1977_H__ diff --git a/include/linux/platform_data/ssm2518.h b/include/linux/platform_data/ssm2518.h index 9a8e3ea287e3..3f9e632d6f63 100644 --- a/include/linux/platform_data/ssm2518.h +++ b/include/linux/platform_data/ssm2518.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * SSM2518 amplifier audio driver * * Copyright 2013 Analog Devices Inc. * Author: Lars-Peter Clausen - * - * Licensed under the GPL-2. */ #ifndef __LINUX_PLATFORM_DATA_SSM2518_H__ diff --git a/include/linux/platform_data/st_sensors_pdata.h b/include/linux/platform_data/st_sensors_pdata.h index 728193111c2f..30929c22227d 100644 --- a/include/linux/platform_data/st_sensors_pdata.h +++ b/include/linux/platform_data/st_sensors_pdata.h @@ -1,11 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * STMicroelectronics sensors platform-data driver * * Copyright 2013 STMicroelectronics Inc. * * Denis Ciocca - * - * Licensed under the GPL-2. */ #ifndef ST_SENSORS_PDATA_H -- cgit v1.2.3 From 84a14ae8c44fb4828a05f363a09c3261472de00e Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 09:57:07 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 178 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 24 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Steve Winslow Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170026.162703968@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mfd/mcp.h | 5 +---- include/linux/mfd/ucb1x00.h | 5 +---- include/linux/mmc/sh_mmcif.h | 6 +----- include/linux/mtd/pismo.h | 5 +---- 4 files changed, 4 insertions(+), 17 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/mcp.h b/include/linux/mfd/mcp.h index f682953043ba..fd5cafc77e8a 100644 --- a/include/linux/mfd/mcp.h +++ b/include/linux/mfd/mcp.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/drivers/mfd/mcp.h * * Copyright (C) 2001 Russell King, All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. */ #ifndef MCP_H #define MCP_H diff --git a/include/linux/mfd/ucb1x00.h b/include/linux/mfd/ucb1x00.h index 88f90cbf8e6a..43bcf35afe27 100644 --- a/include/linux/mfd/ucb1x00.h +++ b/include/linux/mfd/ucb1x00.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/mfd/ucb1x00.h * * Copyright (C) 2001 Russell King, All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. */ #ifndef UCB1200_H #define UCB1200_H diff --git a/include/linux/mmc/sh_mmcif.h b/include/linux/mmc/sh_mmcif.h index a7baa29484c3..e25533b95d9f 100644 --- a/include/linux/mmc/sh_mmcif.h +++ b/include/linux/mmc/sh_mmcif.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/mmc/sh_mmcif.h * * platform data for eMMC driver * * Copyright (C) 2010 Renesas Solutions Corp. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. - * */ #ifndef LINUX_MMC_SH_MMCIF_H diff --git a/include/linux/mtd/pismo.h b/include/linux/mtd/pismo.h index 8dfb7e1421c5..085b639c9538 100644 --- a/include/linux/mtd/pismo.h +++ b/include/linux/mtd/pismo.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * PISMO memory driver - http://www.pismoworld.org/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. */ #ifndef __LINUX_MTD_PISMO_H #define __LINUX_MTD_PISMO_H -- cgit v1.2.3 From 0b7121833d5bbf96d17f0ca417768e181fcdf451 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 09:57:08 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 179 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 3 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Steve Winslow Reviewed-by: Alexios Zavras Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170026.251475812@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/sm501.h | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sm501.h b/include/linux/sm501.h index 02fde50a79a5..2f3488b2875d 100644 --- a/include/linux/sm501.h +++ b/include/linux/sm501.h @@ -1,21 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* include/linux/sm501.h * * Copyright (c) 2006 Simtec Electronics * Ben Dooks * Vincent Sanders - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ extern int sm501_unit_power(struct device *dev, -- cgit v1.2.3 From f50a7f3d9225dd374455f28138f79ae3074a7a3d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 09:57:18 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191 Based on 1 normalized pattern(s): licensed under gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 99 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Steve Winslow Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.163048684@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mfd/abx500/ab8500-bm.h | 2 +- include/linux/mfd/abx500/ab8500-gpadc.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index c06daf3d490a..903e94c189d8 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -1,8 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright ST-Ericsson 2012. * * Author: Arun Murthy - * Licensed under GPLv2. */ #ifndef _AB8500_BM_H diff --git a/include/linux/mfd/abx500/ab8500-gpadc.h b/include/linux/mfd/abx500/ab8500-gpadc.h index 49ded001049b..836c944abe2e 100644 --- a/include/linux/mfd/abx500/ab8500-gpadc.h +++ b/include/linux/mfd/abx500/ab8500-gpadc.h @@ -1,6 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2010 ST-Ericsson SA - * Licensed under GPLv2. * * Author: Arun R Murthy * Author: Daniel Willerud -- cgit v1.2.3 From 2522fe45a186e6276583e02723b78e1d1987cdd5 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 09:57:20 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 193 Based on 1 normalized pattern(s): this copyrighted material is made available to anyone wishing to use modify copy or redistribute it subject to the terms and conditions of the gnu general public license v 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 45 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Steve Winslow Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.342746075@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/dlm.h | 4 +--- include/linux/dlm_plock.h | 5 +---- include/linux/regset.h | 5 +---- include/linux/tracehook.h | 5 +---- 4 files changed, 4 insertions(+), 15 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dlm.h b/include/linux/dlm.h index d02da2c6fc1a..ff951e9f6f20 100644 --- a/include/linux/dlm.h +++ b/include/linux/dlm.h @@ -1,12 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /****************************************************************************** ******************************************************************************* ** ** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. ** Copyright (C) 2004-2011 Red Hat, Inc. All rights reserved. ** -** This copyrighted material is made available to anyone wishing to use, -** modify, copy, or redistribute it subject to the terms and conditions -** of the GNU General Public License v.2. ** ******************************************************************************* ******************************************************************************/ diff --git a/include/linux/dlm_plock.h b/include/linux/dlm_plock.h index 95ad387a7769..e6d76e8715a6 100644 --- a/include/linux/dlm_plock.h +++ b/include/linux/dlm_plock.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved. - * - * This copyrighted material is made available to anyone wishing to use, - * modify, copy, or redistribute it subject to the terms and conditions - * of the GNU General Public License v.2. */ #ifndef __DLM_PLOCK_DOT_H__ #define __DLM_PLOCK_DOT_H__ diff --git a/include/linux/regset.h b/include/linux/regset.h index a85c1707285c..bf0243779738 100644 --- a/include/linux/regset.h +++ b/include/linux/regset.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * User-mode machine state access * * Copyright (C) 2007 Red Hat, Inc. All rights reserved. * - * This copyrighted material is made available to anyone wishing to use, - * modify, copy, or redistribute it subject to the terms and conditions - * of the GNU General Public License v.2. - * * Red Hat Author: Roland McGrath. */ diff --git a/include/linux/tracehook.h b/include/linux/tracehook.h index df20f8bdbfa3..09d678433fc0 100644 --- a/include/linux/tracehook.h +++ b/include/linux/tracehook.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Tracing hooks * * Copyright (C) 2008-2009 Red Hat, Inc. All rights reserved. * - * This copyrighted material is made available to anyone wishing to use, - * modify, copy, or redistribute it subject to the terms and conditions - * of the GNU General Public License v.2. - * * This file defines hook entry points called by core code where * user tracing/debugging support might need to do something. These * entry points are called tracehook_*(). Each hook declared below -- cgit v1.2.3 From af873fcecef567abf8a3468b06dd4e4aab46da6d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 09:57:21 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 Based on 1 normalized pattern(s): license terms gnu general public license gpl version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 161 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Reviewed-by: Steve Winslow Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.447718015@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/iio/timer/stm32-lptim-trigger.h | 3 +-- include/linux/iio/timer/stm32-timer-trigger.h | 3 +-- include/linux/input/bu21013.h | 2 +- include/linux/mfd/ab3100.h | 3 +-- include/linux/mfd/abx500.h | 2 +- include/linux/mfd/abx500/ab8500-sysctrl.h | 2 +- include/linux/mfd/abx500/ux500_chargalg.h | 2 +- include/linux/mfd/stw481x.h | 3 +-- include/linux/mfd/tps6105x.h | 3 +-- include/linux/pinctrl/consumer.h | 3 +-- include/linux/pinctrl/devinfo.h | 3 +-- include/linux/pinctrl/machine.h | 3 +-- include/linux/pinctrl/pinconf-generic.h | 3 +-- include/linux/pinctrl/pinconf.h | 3 +-- include/linux/pinctrl/pinctrl.h | 3 +-- include/linux/pinctrl/pinmux.h | 3 +-- include/linux/platform_data/arm-ux500-pm.h | 3 +-- include/linux/platform_data/asoc-ux500-msp.h | 2 +- include/linux/platform_data/crypto-ux500.h | 2 +- include/linux/platform_data/dma-coh901318.h | 2 +- include/linux/platform_data/dma-ste-dma40.h | 2 +- include/linux/platform_data/net-cw1200.h | 2 +- include/linux/platform_data/usb-musb-ux500.h | 2 +- include/linux/sys_soc.h | 2 +- 24 files changed, 24 insertions(+), 37 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iio/timer/stm32-lptim-trigger.h b/include/linux/iio/timer/stm32-lptim-trigger.h index 464458d20b16..a34dcf6a6001 100644 --- a/include/linux/iio/timer/stm32-lptim-trigger.h +++ b/include/linux/iio/timer/stm32-lptim-trigger.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) STMicroelectronics 2017 * * Author: Fabrice Gasnier - * - * License terms: GNU General Public License (GPL), version 2 */ #ifndef _STM32_LPTIM_TRIGGER_H_ diff --git a/include/linux/iio/timer/stm32-timer-trigger.h b/include/linux/iio/timer/stm32-timer-trigger.h index cbb7c7ae6c0c..37572e4dc73a 100644 --- a/include/linux/iio/timer/stm32-timer-trigger.h +++ b/include/linux/iio/timer/stm32-timer-trigger.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) STMicroelectronics 2016 * * Author: Benjamin Gaignard - * - * License terms: GNU General Public License (GPL), version 2 */ #ifndef _STM32_TIMER_TRIGGER_H_ diff --git a/include/linux/input/bu21013.h b/include/linux/input/bu21013.h index 6230d76bde5d..7e5b7e978e8a 100644 --- a/include/linux/input/bu21013.h +++ b/include/linux/input/bu21013.h @@ -1,7 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2010 * Author: Naveen Kumar G for ST-Ericsson - * License terms:GNU General Public License (GPL) version 2 */ #ifndef _BU21013_H diff --git a/include/linux/mfd/ab3100.h b/include/linux/mfd/ab3100.h index afd3080bde24..a881d8495186 100644 --- a/include/linux/mfd/ab3100.h +++ b/include/linux/mfd/ab3100.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2007-2009 ST-Ericsson AB - * License terms: GNU General Public License (GPL) version 2 * AB3100 core access functions * Author: Linus Walleij - * */ #include diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index aa09414756db..23040b6f1615 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -1,6 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2007-2009 ST-Ericsson AB - * License terms: GNU General Public License (GPL) version 2 * * ABX500 core access functions. * The abx500 interface is used for the Analog Baseband chips. diff --git a/include/linux/mfd/abx500/ab8500-sysctrl.h b/include/linux/mfd/abx500/ab8500-sysctrl.h index 01024d1aed0e..825f6059d4e3 100644 --- a/include/linux/mfd/abx500/ab8500-sysctrl.h +++ b/include/linux/mfd/abx500/ab8500-sysctrl.h @@ -1,7 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2010 * Author: Mattias Nilsson for ST Ericsson. - * License terms: GNU General Public License (GPL) version 2 */ #ifndef __AB8500_SYSCTRL_H #define __AB8500_SYSCTRL_H diff --git a/include/linux/mfd/abx500/ux500_chargalg.h b/include/linux/mfd/abx500/ux500_chargalg.h index 669894f434f5..9b97d284d0ce 100644 --- a/include/linux/mfd/abx500/ux500_chargalg.h +++ b/include/linux/mfd/abx500/ux500_chargalg.h @@ -1,7 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2012 * Author: Johan Gardsmark for ST-Ericsson. - * License terms: GNU General Public License (GPL), version 2 */ #ifndef _UX500_CHARGALG_H diff --git a/include/linux/mfd/stw481x.h b/include/linux/mfd/stw481x.h index 833074b766bd..5312804666b3 100644 --- a/include/linux/mfd/stw481x.h +++ b/include/linux/mfd/stw481x.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2011 ST-Ericsson SA * Written on behalf of Linaro for ST-Ericsson * * Author: Linus Walleij - * - * License terms: GNU General Public License (GPL) version 2 */ #ifndef MFD_STW481X_H #define MFD_STW481X_H diff --git a/include/linux/mfd/tps6105x.h b/include/linux/mfd/tps6105x.h index 8bc51180800a..b1313411ef09 100644 --- a/include/linux/mfd/tps6105x.h +++ b/include/linux/mfd/tps6105x.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2011 ST-Ericsson SA * Written on behalf of Linaro for ST-Ericsson * * Author: Linus Walleij - * - * License terms: GNU General Public License (GPL) version 2 */ #ifndef MFD_TPS6105X_H #define MFD_TPS6105X_H diff --git a/include/linux/pinctrl/consumer.h b/include/linux/pinctrl/consumer.h index 0412cc9833e9..86720a5a384f 100644 --- a/include/linux/pinctrl/consumer.h +++ b/include/linux/pinctrl/consumer.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Consumer interface the pin control subsystem * @@ -6,8 +7,6 @@ * Based on bits of regulator core, gpio core and clk core * * Author: Linus Walleij - * - * License terms: GNU General Public License (GPL) version 2 */ #ifndef __LINUX_PINCTRL_CONSUMER_H #define __LINUX_PINCTRL_CONSUMER_H diff --git a/include/linux/pinctrl/devinfo.h b/include/linux/pinctrl/devinfo.h index d01a8638bb45..a48ff69acddd 100644 --- a/include/linux/pinctrl/devinfo.h +++ b/include/linux/pinctrl/devinfo.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Per-device information from the pin control system. * This is the stuff that get included into the device @@ -8,8 +9,6 @@ * This interface is used in the core to keep track of pins. * * Author: Linus Walleij - * - * License terms: GNU General Public License (GPL) version 2 */ #ifndef PINCTRL_DEVINFO_H diff --git a/include/linux/pinctrl/machine.h b/include/linux/pinctrl/machine.h index 7fa5d87190c2..ddd1b2773431 100644 --- a/include/linux/pinctrl/machine.h +++ b/include/linux/pinctrl/machine.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Machine interface for the pinctrl subsystem. * @@ -6,8 +7,6 @@ * Based on bits of regulator core, gpio core and clk core * * Author: Linus Walleij - * - * License terms: GNU General Public License (GPL) version 2 */ #ifndef __LINUX_PINCTRL_MACHINE_H #define __LINUX_PINCTRL_MACHINE_H diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h index 6c0680641108..6f260c1d3467 100644 --- a/include/linux/pinctrl/pinconf-generic.h +++ b/include/linux/pinctrl/pinconf-generic.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Interface the generic pinconfig portions of the pinctrl subsystem * @@ -6,8 +7,6 @@ * This interface is used in the core to keep track of pins. * * Author: Linus Walleij - * - * License terms: GNU General Public License (GPL) version 2 */ #ifndef __LINUX_PINCTRL_PINCONF_GENERIC_H #define __LINUX_PINCTRL_PINCONF_GENERIC_H diff --git a/include/linux/pinctrl/pinconf.h b/include/linux/pinctrl/pinconf.h index 93c9dd133e9d..514414a5ad01 100644 --- a/include/linux/pinctrl/pinconf.h +++ b/include/linux/pinctrl/pinconf.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Interface the pinconfig portions of the pinctrl subsystem * @@ -6,8 +7,6 @@ * This interface is used in the core to keep track of pins. * * Author: Linus Walleij - * - * License terms: GNU General Public License (GPL) version 2 */ #ifndef __LINUX_PINCTRL_PINCONF_H #define __LINUX_PINCTRL_PINCONF_H diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h index 8f5dbb84547a..e429e5d92dd6 100644 --- a/include/linux/pinctrl/pinctrl.h +++ b/include/linux/pinctrl/pinctrl.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Interface the pinctrl subsystem * @@ -6,8 +7,6 @@ * This interface is used in the core to keep track of pins. * * Author: Linus Walleij - * - * License terms: GNU General Public License (GPL) version 2 */ #ifndef __LINUX_PINCTRL_PINCTRL_H #define __LINUX_PINCTRL_PINCTRL_H diff --git a/include/linux/pinctrl/pinmux.h b/include/linux/pinctrl/pinmux.h index ace60d775b20..e873ed97d79e 100644 --- a/include/linux/pinctrl/pinmux.h +++ b/include/linux/pinctrl/pinmux.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Interface the pinmux subsystem * @@ -6,8 +7,6 @@ * Based on bits of regulator core, gpio core and clk core * * Author: Linus Walleij - * - * License terms: GNU General Public License (GPL) version 2 */ #ifndef __LINUX_PINCTRL_PINMUX_H #define __LINUX_PINCTRL_PINMUX_H diff --git a/include/linux/platform_data/arm-ux500-pm.h b/include/linux/platform_data/arm-ux500-pm.h index 8dff64b29ec0..9f6f01cfdd6c 100644 --- a/include/linux/platform_data/arm-ux500-pm.h +++ b/include/linux/platform_data/arm-ux500-pm.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2010-2013 * Author: Rickard Andersson for * ST-Ericsson. * Author: Daniel Lezcano for Linaro. - * License terms: GNU General Public License (GPL) version 2 - * */ #ifndef ARM_UX500_PM_H diff --git a/include/linux/platform_data/asoc-ux500-msp.h b/include/linux/platform_data/asoc-ux500-msp.h index 2f34bb98fe2a..b8d0f730dda8 100644 --- a/include/linux/platform_data/asoc-ux500-msp.h +++ b/include/linux/platform_data/asoc-ux500-msp.h @@ -1,8 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2010 * * Author: Rabin Vincent for ST-Ericsson - * License terms: GNU General Public License (GPL), version 2. */ #ifndef __MSP_H diff --git a/include/linux/platform_data/crypto-ux500.h b/include/linux/platform_data/crypto-ux500.h index 94df96d9a336..5d43350e32cc 100644 --- a/include/linux/platform_data/crypto-ux500.h +++ b/include/linux/platform_data/crypto-ux500.h @@ -1,8 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2011 * * Author: Joakim Bech for ST-Ericsson - * License terms: GNU General Public License (GPL) version 2 */ #ifndef _CRYPTO_UX500_H #define _CRYPTO_UX500_H diff --git a/include/linux/platform_data/dma-coh901318.h b/include/linux/platform_data/dma-coh901318.h index c4cb9590d115..4cca529f8d56 100644 --- a/include/linux/platform_data/dma-coh901318.h +++ b/include/linux/platform_data/dma-coh901318.h @@ -1,7 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Platform data for the COH901318 DMA controller * Copyright (C) 2007-2013 ST-Ericsson - * License terms: GNU General Public License (GPL) version 2 */ #ifndef PLAT_COH901318_H diff --git a/include/linux/platform_data/dma-ste-dma40.h b/include/linux/platform_data/dma-ste-dma40.h index 1bb9b1852256..10641633facc 100644 --- a/include/linux/platform_data/dma-ste-dma40.h +++ b/include/linux/platform_data/dma-ste-dma40.h @@ -1,8 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2007-2010 * Author: Per Forlin for ST-Ericsson * Author: Jonas Aaberg for ST-Ericsson - * License terms: GNU General Public License (GPL) version 2 */ diff --git a/include/linux/platform_data/net-cw1200.h b/include/linux/platform_data/net-cw1200.h index c6fbc3ce4ab0..c510734405bb 100644 --- a/include/linux/platform_data/net-cw1200.h +++ b/include/linux/platform_data/net-cw1200.h @@ -1,8 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2011 * * Author: Dmitry Tarnyagin - * License terms: GNU General Public License (GPL) version 2 */ #ifndef CW1200_PLAT_H_INCLUDED diff --git a/include/linux/platform_data/usb-musb-ux500.h b/include/linux/platform_data/usb-musb-ux500.h index dd9c83ac7de0..8909f396febc 100644 --- a/include/linux/platform_data/usb-musb-ux500.h +++ b/include/linux/platform_data/usb-musb-ux500.h @@ -1,8 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2011 * * Author: Mian Yousaf Kaukab - * License terms: GNU General Public License (GPL) version 2 */ #ifndef __ASM_ARCH_USB_H #define __ASM_ARCH_USB_H diff --git a/include/linux/sys_soc.h b/include/linux/sys_soc.h index bed223b70217..b7c70c3e953f 100644 --- a/include/linux/sys_soc.h +++ b/include/linux/sys_soc.h @@ -1,7 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2011 * Author: Lee Jones for ST-Ericsson. - * License terms: GNU General Public License (GPL), version 2 */ #ifndef __SOC_BUS_H #define __SOC_BUS_H -- cgit v1.2.3 From 0376148f303c7e87ff3577dac7d76b93e3a5779a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 09:57:24 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 197 Based on 1 normalized pattern(s): license terms gnu general public license v2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 37 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Steve Winslow Reviewed-by: Alexios Zavras Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.724130665@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/led-lm3530.h | 3 +-- include/linux/mfd/abx500/ab8500.h | 2 +- include/linux/mfd/db8500-prcmu.h | 2 +- include/linux/mfd/dbx500-prcmu.h | 3 +-- include/linux/platform_data/keypad-nomadik-ske.h | 2 +- include/linux/platform_data/leds-lm355x.h | 3 +-- include/linux/platform_data/leds-lm3642.h | 3 +-- include/linux/platform_data/ux500_wdt.h | 3 +-- include/linux/power/ab8500.h | 2 +- include/linux/regulator/ab8500.h | 3 +-- include/linux/regulator/db8500-prcmu.h | 3 +-- 11 files changed, 11 insertions(+), 18 deletions(-) (limited to 'include/linux') diff --git a/include/linux/led-lm3530.h b/include/linux/led-lm3530.h index 4b133479d6ea..811f7ce4e218 100644 --- a/include/linux/led-lm3530.h +++ b/include/linux/led-lm3530.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2011 ST-Ericsson SA. * Copyright (C) 2009 Motorola, Inc. * - * License Terms: GNU General Public License v2 - * * Simple driver for National Semiconductor LM35330 Backlight driver chip * * Author: Shreshtha Kumar SAHU diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index d33c245e75ca..524a7e4702c2 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -1,7 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2010 * - * License Terms: GNU General Public License v2 * Author: Srinidhi Kasagar */ #ifndef MFD_AB8500_H diff --git a/include/linux/mfd/db8500-prcmu.h b/include/linux/mfd/db8500-prcmu.h index 7ba67b55b312..813710aa2cfd 100644 --- a/include/linux/mfd/db8500-prcmu.h +++ b/include/linux/mfd/db8500-prcmu.h @@ -1,8 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) STMicroelectronics 2009 * Copyright (C) ST-Ericsson SA 2010 * - * License Terms: GNU General Public License v2 * Author: Kumar Sanghvi * * PRCMU f/w APIs diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h index 2e2c6a63a065..238401a50d0b 100644 --- a/include/linux/mfd/dbx500-prcmu.h +++ b/include/linux/mfd/dbx500-prcmu.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST Ericsson SA 2011 * - * License Terms: GNU General Public License v2 - * * STE Ux500 PRCMU API */ #ifndef __MACH_PRCMU_H diff --git a/include/linux/platform_data/keypad-nomadik-ske.h b/include/linux/platform_data/keypad-nomadik-ske.h index 31382fbc07dc..7efabbca1dca 100644 --- a/include/linux/platform_data/keypad-nomadik-ske.h +++ b/include/linux/platform_data/keypad-nomadik-ske.h @@ -1,7 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2010 * - * License Terms: GNU General Public License v2 * Author: Naveen Kumar Gaddipati * * ux500 Scroll key and Keypad Encoder (SKE) header diff --git a/include/linux/platform_data/leds-lm355x.h b/include/linux/platform_data/leds-lm355x.h index b88724bb0b46..b1090487b4b0 100644 --- a/include/linux/platform_data/leds-lm355x.h +++ b/include/linux/platform_data/leds-lm355x.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 Texas Instruments * - * License Terms: GNU General Public License v2 - * * Simple driver for Texas Instruments LM355x LED driver chip * * Author: G.Shark Jeong diff --git a/include/linux/platform_data/leds-lm3642.h b/include/linux/platform_data/leds-lm3642.h index 72d6ee6ade57..2490a2fb6549 100644 --- a/include/linux/platform_data/leds-lm3642.h +++ b/include/linux/platform_data/leds-lm3642.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 Texas Instruments * -* License Terms: GNU General Public License v2 -* * Simple driver for Texas Instruments LM3642 LED driver chip * * Author: G.Shark Jeong diff --git a/include/linux/platform_data/ux500_wdt.h b/include/linux/platform_data/ux500_wdt.h index 1689ff4c3bfd..de6a4ad41e76 100644 --- a/include/linux/platform_data/ux500_wdt.h +++ b/include/linux/platform_data/ux500_wdt.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST Ericsson SA 2011 * - * License Terms: GNU General Public License v2 - * * STE Ux500 Watchdog platform data */ #ifndef __UX500_WDT_H diff --git a/include/linux/power/ab8500.h b/include/linux/power/ab8500.h index cdbb6c2a8c51..51976b52f373 100644 --- a/include/linux/power/ab8500.h +++ b/include/linux/power/ab8500.h @@ -1,7 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson 2013 * Author: Hongbo Zhang - * License terms: GNU General Public License v2 */ #ifndef PWR_AB8500_H diff --git a/include/linux/regulator/ab8500.h b/include/linux/regulator/ab8500.h index 6d46f962685d..7cf8f797e13a 100644 --- a/include/linux/regulator/ab8500.h +++ b/include/linux/regulator/ab8500.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2010 * - * License Terms: GNU General Public License v2 - * * Authors: Sundar Iyer for ST-Ericsson * Bengt Jonsson for ST-Ericsson * Daniel Willerud for ST-Ericsson diff --git a/include/linux/regulator/db8500-prcmu.h b/include/linux/regulator/db8500-prcmu.h index 612062313b68..f90df9ee703e 100644 --- a/include/linux/regulator/db8500-prcmu.h +++ b/include/linux/regulator/db8500-prcmu.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2010 * - * License Terms: GNU General Public License v2 - * * Author: Bengt Jonsson for ST-Ericsson * * Interface to power domain regulators on DB8500 -- cgit v1.2.3 From 9952f6918daa4ab5fc81307a9f90e31a4df3b200 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 10:10:04 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 228 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Steve Winslow Reviewed-by: Richard Fontana Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528171438.107155473@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/clk/tegra.h | 13 +------------ include/linux/mfd/altera-a10sr.h | 13 +------------ include/linux/mfd/rc5t583.h | 14 +------------- include/linux/pl320-ipc.h | 12 +----------- include/linux/scpi_protocol.h | 13 +------------ 5 files changed, 5 insertions(+), 60 deletions(-) (limited to 'include/linux') diff --git a/include/linux/clk/tegra.h b/include/linux/clk/tegra.h index afb9edfa5d58..b8aef62cc3f5 100644 --- a/include/linux/clk/tegra.h +++ b/include/linux/clk/tegra.h @@ -1,17 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . */ #ifndef __LINUX_CLK_TEGRA_H_ diff --git a/include/linux/mfd/altera-a10sr.h b/include/linux/mfd/altera-a10sr.h index 45a5e6e7db54..d616da4b3c4c 100644 --- a/include/linux/mfd/altera-a10sr.h +++ b/include/linux/mfd/altera-a10sr.h @@ -1,18 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright Intel Corporation (C) 2014-2016. All Rights Reserved * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see . - * * Declarations for Altera Arria10 MAX5 System Resource Chip * * Adapted from DA9052 diff --git a/include/linux/mfd/rc5t583.h b/include/linux/mfd/rc5t583.h index 8d0a392e0a7f..4f220146cc02 100644 --- a/include/linux/mfd/rc5t583.h +++ b/include/linux/mfd/rc5t583.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Core driver interface to access RICOH_RC5T583 power management chip. * @@ -6,19 +7,6 @@ * * Based on code * Copyright (C) 2011 RICOH COMPANY,LTD - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - * */ #ifndef __LINUX_MFD_RC5T583_H diff --git a/include/linux/pl320-ipc.h b/include/linux/pl320-ipc.h index 5161f63ec1c8..4b29e172eea8 100644 --- a/include/linux/pl320-ipc.h +++ b/include/linux/pl320-ipc.h @@ -1,15 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see . */ int pl320_ipc_transmit(u32 *data); diff --git a/include/linux/scpi_protocol.h b/include/linux/scpi_protocol.h index 327d65663dbf..ecb004711acf 100644 --- a/include/linux/scpi_protocol.h +++ b/include/linux/scpi_protocol.h @@ -1,19 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * SCPI Message Protocol driver header * * Copyright (C) 2014 ARM Ltd. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see . */ #include -- cgit v1.2.3 From 25763b3c864cf517d686661012d184ee47a49b4c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 10:10:09 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 107 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Reviewed-by: Steve Winslow Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528171438.615055994@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/bpf.h | 5 +---- include/linux/bpf_verifier.h | 5 +---- include/linux/cs5535.h | 5 +---- include/linux/hdlc.h | 5 +---- include/linux/platform_data/intel-mid_wdt.h | 5 +---- include/linux/soc/ixp4xx/qmgr.h | 5 +---- 6 files changed, 6 insertions(+), 24 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 4fb3aa2dc975..5df8e9e2a393 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -1,8 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. */ #ifndef _LINUX_BPF_H #define _LINUX_BPF_H 1 diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index 1305ccbd8fe6..519aafabc40c 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -1,8 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. */ #ifndef _LINUX_BPF_VERIFIER_H #define _LINUX_BPF_VERIFIER_H 1 diff --git a/include/linux/cs5535.h b/include/linux/cs5535.h index cfe83239d7f0..2be1120174eb 100644 --- a/include/linux/cs5535.h +++ b/include/linux/cs5535.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AMD CS5535/CS5536 definitions * Copyright (C) 2006 Advanced Micro Devices, Inc. * Copyright (C) 2009 Andres Salomon - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public License - * as published by the Free Software Foundation. */ #ifndef _CS5535_H diff --git a/include/linux/hdlc.h b/include/linux/hdlc.h index 97585d9679f3..cacc4dd27794 100644 --- a/include/linux/hdlc.h +++ b/include/linux/hdlc.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Generic HDLC support routines for Linux * * Copyright (C) 1999-2005 Krzysztof Halasa - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License - * as published by the Free Software Foundation. */ #ifndef __HDLC_H #define __HDLC_H diff --git a/include/linux/platform_data/intel-mid_wdt.h b/include/linux/platform_data/intel-mid_wdt.h index b98253466ace..8dba70b4b020 100644 --- a/include/linux/platform_data/intel-mid_wdt.h +++ b/include/linux/platform_data/intel-mid_wdt.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * intel-mid_wdt: generic Intel MID SCU watchdog driver * * Copyright (C) 2014 Intel Corporation. All rights reserved. * Contact: David Cohen - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General - * Public License as published by the Free Software Foundation. */ #ifndef __INTEL_MID_WDT_H__ diff --git a/include/linux/soc/ixp4xx/qmgr.h b/include/linux/soc/ixp4xx/qmgr.h index bed8ee94fa57..2c0f433a3841 100644 --- a/include/linux/soc/ixp4xx/qmgr.h +++ b/include/linux/soc/ixp4xx/qmgr.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2007 Krzysztof Halasa - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License - * as published by the Free Software Foundation. */ #ifndef IXP4XX_QMGR_H -- cgit v1.2.3 From a63a5fa97e86909c3b1c96d1ed09d91aacd76c8c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 10:10:21 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 218 Based on 1 normalized pattern(s): you may use this code as per gpl version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 5 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Steve Winslow Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528171439.762454146@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/power_supply.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index d9c0c094f8a0..6f348b3ee2e0 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Universal power supply monitor class * @@ -6,8 +7,6 @@ * Copyright © 2003 Ian Molton * * Modified: 2004, Oct Szabolcs Gyurko - * - * You may use this code as per GPL version 2 */ #ifndef __LINUX_POWER_SUPPLY_H__ -- cgit v1.2.3 From 68cf618c62946085d64f0cc237e01cd6d238dbb5 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 10:10:22 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 220 Based on 1 normalized pattern(s): distributed under the gnu gpl license version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Reviewed-by: Steve Winslow Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528171439.854676954@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/idr.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/idr.h b/include/linux/idr.h index 60daf34b625d..ee7abae143d3 100644 --- a/include/linux/idr.h +++ b/include/linux/idr.h @@ -1,9 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/idr.h * * 2002-10-18 written by Jim Houston jim.houston@ccur.com * Copyright (C) 2002 by Concurrent Computer Corporation - * Distributed under the GNU GPL license version 2. * * Small id to pointer translation service avoiding fixed sized * tables. -- cgit v1.2.3 From f0aa4fa4fe1a1b35ddd6222f56c64f68f2d74269 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 28 May 2019 10:10:23 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 221 Based on 1 normalized pattern(s): gpl version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Reviewed-by: Steve Winslow Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528171439.945432253@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/apm-emulation.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/apm-emulation.h b/include/linux/apm-emulation.h index e6d800358dd6..94c036957948 100644 --- a/include/linux/apm-emulation.h +++ b/include/linux/apm-emulation.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* -*- linux-c -*- * * (C) 2003 zecke@handhelds.org * - * GPL version 2 - * * based on arch/arm/kernel/apm.c * factor out the information needed by architectures to provide * apm status -- cgit v1.2.3 From b636fd38dc40113f853337a7d2a6885ad23b8811 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 31 May 2019 10:38:58 -0700 Subject: cgroup: Implement css_task_iter_skip() When a task is moved out of a cset, task iterators pointing to the task are advanced using the normal css_task_iter_advance() call. This is fine but we'll be tracking dying tasks on csets and thus moving tasks from cset->tasks to (to be added) cset->dying_tasks. When we remove a task from cset->tasks, if we advance the iterators, they may move over to the next cset before we had the chance to add the task back on the dying list, which can allow the task to escape iteration. This patch separates out skipping from advancing. Skipping only moves the affected iterators to the next pointer rather than fully advancing it and the following advancing will recognize that the cursor has already been moved forward and do the rest of advancing. This ensures that when a task moves from one list to another in its cset, as long as it moves in the right direction, it's always visible to iteration. This doesn't cause any visible behavior changes. Signed-off-by: Tejun Heo Cc: Oleg Nesterov --- include/linux/cgroup.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index a7e4611e20c8..05ed2a209e74 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -43,6 +43,9 @@ /* walk all threaded css_sets in the domain */ #define CSS_TASK_ITER_THREADED (1U << 1) +/* internal flags */ +#define CSS_TASK_ITER_SKIPPED (1U << 16) + /* a css_task_iter should be treated as an opaque object */ struct css_task_iter { struct cgroup_subsys *ss; -- cgit v1.2.3 From c03cd7738a83b13739f00546166969342c8ff014 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 31 May 2019 10:38:58 -0700 Subject: cgroup: Include dying leaders with live threads in PROCS iterations CSS_TASK_ITER_PROCS currently iterates live group leaders; however, this means that a process with dying leader and live threads will be skipped. IOW, cgroup.procs might be empty while cgroup.threads isn't, which is confusing to say the least. Fix it by making cset track dying tasks and include dying leaders with live threads in PROCS iteration. Signed-off-by: Tejun Heo Reported-and-tested-by: Topi Miettinen Cc: Oleg Nesterov --- include/linux/cgroup-defs.h | 1 + include/linux/cgroup.h | 1 + 2 files changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index 77258d276f93..1615b9c17e02 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -216,6 +216,7 @@ struct css_set { */ struct list_head tasks; struct list_head mg_tasks; + struct list_head dying_tasks; /* all css_task_iters currently walking this cset */ struct list_head task_iters; diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 05ed2a209e74..0297f930a56e 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -60,6 +60,7 @@ struct css_task_iter { struct list_head *task_pos; struct list_head *tasks_head; struct list_head *mg_tasks_head; + struct list_head *dying_tasks_head; struct css_set *cur_cset; struct css_set *cur_dcset; -- cgit v1.2.3 From 7b785645e8f13e17cbce492708cf6e7039d32e46 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Fri, 24 May 2019 10:12:46 -0400 Subject: mm: fix page cache convergence regression Since a28334862993 ("page cache: Finish XArray conversion"), on most major Linux distributions, the page cache doesn't correctly transition when the hot data set is changing, and leaves the new pages thrashing indefinitely instead of kicking out the cold ones. On a freshly booted, freshly ssh'd into virtual machine with 1G RAM running stock Arch Linux: [root@ham ~]# ./reclaimtest.sh + dd of=workingset-a bs=1M count=0 seek=600 + cat workingset-a + cat workingset-a + cat workingset-a + cat workingset-a + cat workingset-a + cat workingset-a + cat workingset-a + cat workingset-a + ./mincore workingset-a 153600/153600 workingset-a + dd of=workingset-b bs=1M count=0 seek=600 + cat workingset-b + cat workingset-b + cat workingset-b + cat workingset-b + ./mincore workingset-a workingset-b 104029/153600 workingset-a 120086/153600 workingset-b + cat workingset-b + cat workingset-b + cat workingset-b + cat workingset-b + ./mincore workingset-a workingset-b 104029/153600 workingset-a 120268/153600 workingset-b workingset-b is a 600M file on a 1G host that is otherwise entirely idle. No matter how often it's being accessed, it won't get cached. While investigating, I noticed that the non-resident information gets aggressively reclaimed - /proc/vmstat::workingset_nodereclaim. This is a problem because a workingset transition like this relies on the non-resident information tracked in the page cache tree of evicted file ranges: when the cache faults are refaults of recently evicted cache, we challenge the existing active set, and that allows a new workingset to establish itself. Tracing the shrinker that maintains this memory revealed that all page cache tree nodes were allocated to the root cgroup. This is a problem, because 1) the shrinker sizes the amount of non-resident information it keeps to the size of the cgroup's other memory and 2) on most major Linux distributions, only kernel threads live in the root cgroup and everything else gets put into services or session groups: [root@ham ~]# cat /proc/self/cgroup 0::/user.slice/user-0.slice/session-c1.scope As a result, we basically maintain no non-resident information for the workloads running on the system, thus breaking the caching algorithm. Looking through the code, I found the culprit in the above-mentioned patch: when switching from the radix tree to xarray, it dropped the __GFP_ACCOUNT flag from the tree node allocations - the flag that makes sure the allocated memory gets charged to and tracked by the cgroup of the calling process - in this case, the one doing the fault. To fix this, allow xarray users to specify per-tree flag that makes xarray allocate nodes using __GFP_ACCOUNT. Then restore the page cache tree annotation to request such cgroup tracking for the cache nodes. With this patch applied, the page cache correctly converges on new workingsets again after just a few iterations: [root@ham ~]# ./reclaimtest.sh + dd of=workingset-a bs=1M count=0 seek=600 + cat workingset-a + cat workingset-a + cat workingset-a + cat workingset-a + cat workingset-a + cat workingset-a + cat workingset-a + cat workingset-a + ./mincore workingset-a 153600/153600 workingset-a + dd of=workingset-b bs=1M count=0 seek=600 + cat workingset-b + ./mincore workingset-a workingset-b 124607/153600 workingset-a 87876/153600 workingset-b + cat workingset-b + ./mincore workingset-a workingset-b 81313/153600 workingset-a 133321/153600 workingset-b + cat workingset-b + ./mincore workingset-a workingset-b 63036/153600 workingset-a 153600/153600 workingset-b Cc: stable@vger.kernel.org # 4.20+ Signed-off-by: Johannes Weiner Reviewed-by: Shakeel Butt Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/xarray.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/xarray.h b/include/linux/xarray.h index 0e01e6129145..5921599b6dc4 100644 --- a/include/linux/xarray.h +++ b/include/linux/xarray.h @@ -265,6 +265,7 @@ enum xa_lock_type { #define XA_FLAGS_TRACK_FREE ((__force gfp_t)4U) #define XA_FLAGS_ZERO_BUSY ((__force gfp_t)8U) #define XA_FLAGS_ALLOC_WRAPPED ((__force gfp_t)16U) +#define XA_FLAGS_ACCOUNT ((__force gfp_t)32U) #define XA_FLAGS_MARK(mark) ((__force gfp_t)((1U << __GFP_BITS_SHIFT) << \ (__force unsigned)(mark))) -- cgit v1.2.3 From e8d67fa5696e2fcaf956dae36d11e6eff5246101 Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Thu, 30 May 2019 00:51:26 +0300 Subject: net: dsa: sja1105: Don't store frame type in skb->cb Due to a confusion I thought that eth_type_trans() was called by the network stack whereas it can actually be called by network drivers to figure out the skb protocol and next packet_type handlers. In light of the above, it is not safe to store the frame type from the DSA tagger's .filter callback (first entry point on RX path), since GRO is yet to be invoked on the received traffic. Hence it is very likely that the skb->cb will actually get overwritten between eth_type_trans() and the actual DSA packet_type handler. Of course, what this patch fixes is the actual overwriting of the SJA1105_SKB_CB(skb)->type field from the GRO layer, which made all frames be seen as SJA1105_FRAME_TYPE_NORMAL (0). Fixes: 227d07a07ef1 ("net: dsa: sja1105: Add support for traffic through standalone ports") Signed-off-by: Vladimir Oltean Signed-off-by: David S. Miller --- include/linux/dsa/sja1105.h | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dsa/sja1105.h b/include/linux/dsa/sja1105.h index 603a02e5a8cb..e46e18c47d41 100644 --- a/include/linux/dsa/sja1105.h +++ b/include/linux/dsa/sja1105.h @@ -20,18 +20,6 @@ #define SJA1105_LINKLOCAL_FILTER_B 0x011B19000000ull #define SJA1105_LINKLOCAL_FILTER_B_MASK 0xFFFFFF000000ull -enum sja1105_frame_type { - SJA1105_FRAME_TYPE_NORMAL = 0, - SJA1105_FRAME_TYPE_LINK_LOCAL, -}; - -struct sja1105_skb_cb { - enum sja1105_frame_type type; -}; - -#define SJA1105_SKB_CB(skb) \ - ((struct sja1105_skb_cb *)DSA_SKB_CB_PRIV(skb)) - struct sja1105_port { struct dsa_port *dp; int mgmt_slot; -- cgit v1.2.3 From 9852ae3fe5293264f01c49f2571ef7688f7823ce Mon Sep 17 00:00:00 2001 From: Chris Down Date: Fri, 31 May 2019 22:30:22 -0700 Subject: mm, memcg: consider subtrees in memory.events memory.stat and other files already consider subtrees in their output, and we should too in order to not present an inconsistent interface. The current situation is fairly confusing, because people interacting with cgroups expect hierarchical behaviour in the vein of memory.stat, cgroup.events, and other files. For example, this causes confusion when debugging reclaim events under low, as currently these always read "0" at non-leaf memcg nodes, which frequently causes people to misdiagnose breach behaviour. The same confusion applies to other counters in this file when debugging issues. Aggregation is done at write time instead of at read-time since these counters aren't hot (unlike memory.stat which is per-page, so it does it at read time), and it makes sense to bundle this with the file notifications. After this patch, events are propagated up the hierarchy: [root@ktst ~]# cat /sys/fs/cgroup/system.slice/memory.events low 0 high 0 max 0 oom 0 oom_kill 0 [root@ktst ~]# systemd-run -p MemoryMax=1 true Running as unit: run-r251162a189fb4562b9dabfdc9b0422f5.service [root@ktst ~]# cat /sys/fs/cgroup/system.slice/memory.events low 0 high 0 max 7 oom 1 oom_kill 1 As this is a change in behaviour, this can be reverted to the old behaviour by mounting with the `memory_localevents' flag set. However, we use the new behaviour by default as there's a lack of evidence that there are any current users of memory.events that would find this change undesirable. akpm: this is a behaviour change, so Cc:stable. THis is so that forthcoming distros which use cgroup v2 are more likely to pick up the revised behaviour. Link: http://lkml.kernel.org/r/20190208224419.GA24772@chrisdown.name Signed-off-by: Chris Down Acked-by: Johannes Weiner Reviewed-by: Shakeel Butt Cc: Michal Hocko Cc: Tejun Heo Cc: Roman Gushchin Cc: Dennis Zhou Cc: Suren Baghdasaryan Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/cgroup-defs.h | 5 +++++ include/linux/memcontrol.h | 10 ++++++++-- 2 files changed, 13 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index 77258d276f93..11e215d7937e 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -89,6 +89,11 @@ enum { * Enable cpuset controller in v1 cgroup to use v2 behavior. */ CGRP_ROOT_CPUSET_V2_MODE = (1 << 4), + + /* + * Enable legacy local memory.events. + */ + CGRP_ROOT_MEMORY_LOCAL_EVENTS = (1 << 5), }; /* cftype->flags */ diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 73fe0a700911..edf9e8f32d70 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -737,8 +737,14 @@ static inline void count_memcg_event_mm(struct mm_struct *mm, static inline void memcg_memory_event(struct mem_cgroup *memcg, enum memcg_memory_event event) { - atomic_long_inc(&memcg->memory_events[event]); - cgroup_file_notify(&memcg->events_file); + do { + atomic_long_inc(&memcg->memory_events[event]); + cgroup_file_notify(&memcg->events_file); + + if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS) + break; + } while ((memcg = parent_mem_cgroup(memcg)) && + !mem_cgroup_is_root(memcg)); } static inline void memcg_memory_event_mm(struct mm_struct *mm, -- cgit v1.2.3 From 3e8589963773a5c23e2f1fe4bcad0e9a90b7f471 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Fri, 31 May 2019 22:30:26 -0700 Subject: memcg: make it work on sparse non-0-node systems We have a single node system with node 0 disabled: Scanning NUMA topology in Northbridge 24 Number of physical nodes 2 Skipping disabled node 0 Node 1 MemBase 0000000000000000 Limit 00000000fbff0000 NODE_DATA(1) allocated [mem 0xfbfda000-0xfbfeffff] This causes crashes in memcg when system boots: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 #PF error: [normal kernel read fault] ... RIP: 0010:list_lru_add+0x94/0x170 ... Call Trace: d_lru_add+0x44/0x50 dput.part.34+0xfc/0x110 __fput+0x108/0x230 task_work_run+0x9f/0xc0 exit_to_usermode_loop+0xf5/0x100 It is reproducible as far as 4.12. I did not try older kernels. You have to have a new enough systemd, e.g. 241 (the reason is unknown -- was not investigated). Cannot be reproduced with systemd 234. The system crashes because the size of lru array is never updated in memcg_update_all_list_lrus and the reads are past the zero-sized array, causing dereferences of random memory. The root cause are list_lru_memcg_aware checks in the list_lru code. The test in list_lru_memcg_aware is broken: it assumes node 0 is always present, but it is not true on some systems as can be seen above. So fix this by avoiding checks on node 0. Remember the memcg-awareness by a bool flag in struct list_lru. Link: http://lkml.kernel.org/r/20190522091940.3615-1-jslaby@suse.cz Fixes: 60d3fd32a7a9 ("list_lru: introduce per-memcg lists") Signed-off-by: Jiri Slaby Acked-by: Michal Hocko Suggested-by: Vladimir Davydov Acked-by: Vladimir Davydov Reviewed-by: Shakeel Butt Cc: Johannes Weiner Cc: Raghavendra K T Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/list_lru.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/list_lru.h b/include/linux/list_lru.h index aa5efd9351eb..d5ceb2839a2d 100644 --- a/include/linux/list_lru.h +++ b/include/linux/list_lru.h @@ -54,6 +54,7 @@ struct list_lru { #ifdef CONFIG_MEMCG_KMEM struct list_head list; int shrinker_id; + bool memcg_aware; #endif }; -- cgit v1.2.3 From 590ba22ba0aa0680a41fb7e51ec5395a4e2c4a85 Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Fri, 31 May 2019 22:30:55 -0700 Subject: include/linux/generic-radix-tree.h: fix kerneldoc comment The DOC comment block section in include/linux/generic-radix-tree.h contained a spurious colon, causing this warning in the documentation build: include/linux/generic-radix-tree.h:1: warning: no structured comments found Remove the colon and make the docs build happy. Link: http://lkml.kernel.org/r/20190524141933.74ae9050@lwn.net Signed-off-by: Jonathan Corbet Reviewed-by: Andrew Morton Cc: Kent Overstreet Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/generic-radix-tree.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/generic-radix-tree.h b/include/linux/generic-radix-tree.h index 3a91130a4fbd..02393c0c98f9 100644 --- a/include/linux/generic-radix-tree.h +++ b/include/linux/generic-radix-tree.h @@ -2,7 +2,7 @@ #define _LINUX_GENERIC_RADIX_TREE_H /** - * DOC: Generic radix trees/sparse arrays: + * DOC: Generic radix trees/sparse arrays * * Very simple and minimalistic, supporting arbitrary size entries up to * PAGE_SIZE. -- cgit v1.2.3 From a61373476127edac8bcc5ee9d68a74dc1b864f53 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 27 May 2019 12:45:18 +0200 Subject: PM: sleep: Add kerneldoc comments to some functions Add kerneldoc comments to pm_suspend_via_firmware(), pm_resume_via_firmware() and pm_suspend_via_s2idle() to explain what they do. Signed-off-by: Rafael J. Wysocki --- include/linux/suspend.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'include/linux') diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 4a2ffd678887..8594001e8be8 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -227,11 +227,42 @@ static inline void pm_set_resume_via_firmware(void) pm_suspend_global_flags |= PM_SUSPEND_FLAG_FW_RESUME; } +/** + * pm_suspend_via_firmware - Check if platform firmware will suspend the system. + * + * To be called during system-wide power management transitions to sleep states + * or during the subsequent system-wide transitions back to the working state. + * + * Return 'true' if the platform firmware is going to be invoked at the end of + * the system-wide power management transition (to a sleep state) in progress in + * order to complete it, or if the platform firmware has been invoked in order + * to complete the last (or preceding) transition of the system to a sleep + * state. + * + * This matters if the caller needs or wants to carry out some special actions + * depending on whether or not control will be passed to the platform firmware + * subsequently (for example, the device may need to be reset before letting the + * platform firmware manipulate it, which is not necessary when the platform + * firmware is not going to be invoked) or when such special actions may have + * been carried out during the preceding transition of the system to a sleep + * state (as they may need to be taken into account). + */ static inline bool pm_suspend_via_firmware(void) { return !!(pm_suspend_global_flags & PM_SUSPEND_FLAG_FW_SUSPEND); } +/** + * pm_resume_via_firmware - Check if platform firmware has woken up the system. + * + * To be called during system-wide power management transitions from sleep + * states. + * + * Return 'true' if the platform firmware has passed control to the kernel at + * the beginning of the system-wide power management transition in progress, so + * the event that woke up the system from sleep has been handled by the platform + * firmware. + */ static inline bool pm_resume_via_firmware(void) { return !!(pm_suspend_global_flags & PM_SUSPEND_FLAG_FW_RESUME); -- cgit v1.2.3 From ec527c318036a65a083ef68d8ba95789d2212246 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Thu, 30 May 2019 00:09:39 +0200 Subject: x86/power: Fix 'nosmt' vs hibernation triple fault during resume As explained in 0cc3cd21657b ("cpu/hotplug: Boot HT siblings at least once") we always, no matter what, have to bring up x86 HT siblings during boot at least once in order to avoid first MCE bringing the system to its knees. That means that whenever 'nosmt' is supplied on the kernel command-line, all the HT siblings are as a result sitting in mwait or cpudile after going through the online-offline cycle at least once. This causes a serious issue though when a kernel, which saw 'nosmt' on its commandline, is going to perform resume from hibernation: if the resume from the hibernated image is successful, cr3 is flipped in order to point to the address space of the kernel that is being resumed, which in turn means that all the HT siblings are all of a sudden mwaiting on address which is no longer valid. That results in triple fault shortly after cr3 is switched, and machine reboots. Fix this by always waking up all the SMT siblings before initiating the 'restore from hibernation' process; this guarantees that all the HT siblings will be properly carried over to the resumed kernel waiting in resume_play_dead(), and acted upon accordingly afterwards, based on the target kernel configuration. Symmetricaly, the resumed kernel has to push the SMT siblings to mwait again in case it has SMT disabled; this means it has to online all the siblings when resuming (so that they come out of hlt) and offline them again to let them reach mwait. Cc: 4.19+ # v4.19+ Debugged-by: Thomas Gleixner Fixes: 0cc3cd21657b ("cpu/hotplug: Boot HT siblings at least once") Signed-off-by: Jiri Kosina Acked-by: Pavel Machek Reviewed-by: Thomas Gleixner Reviewed-by: Josh Poimboeuf Signed-off-by: Rafael J. Wysocki --- include/linux/cpu.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 3813fe45effd..fcb1386bb0d4 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -201,10 +201,14 @@ enum cpuhp_smt_control { extern enum cpuhp_smt_control cpu_smt_control; extern void cpu_smt_disable(bool force); extern void cpu_smt_check_topology(void); +extern int cpuhp_smt_enable(void); +extern int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval); #else # define cpu_smt_control (CPU_SMT_NOT_IMPLEMENTED) static inline void cpu_smt_disable(bool force) { } static inline void cpu_smt_check_topology(void) { } +static inline int cpuhp_smt_enable(void) { return 0; } +static inline int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval) { return 0; } #endif /* -- cgit v1.2.3 From 66be4e66a7f422128748e3c3ef6ee72b20a6197b Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 3 Jun 2019 13:26:20 -0700 Subject: rcu: locking and unlocking need to always be at least barriers Herbert Xu pointed out that commit bb73c52bad36 ("rcu: Don't disable preemption for Tiny and Tree RCU readers") was incorrect in making the preempt_disable/enable() be conditional on CONFIG_PREEMPT_COUNT. If CONFIG_PREEMPT_COUNT isn't enabled, the preemption enable/disable is a no-op, but still is a compiler barrier. And RCU locking still _needs_ that compiler barrier. It is simply fundamentally not true that RCU locking would be a complete no-op: we still need to guarantee (for example) that things that can trap and cause preemption cannot migrate into the RCU locked region. The way we do that is by making it a barrier. See for example commit 386afc91144b ("spinlocks and preemption points need to be at least compiler barriers") from back in 2013 that had similar issues with spinlocks that become no-ops on UP: they must still constrain the compiler from moving other operations into the critical region. Now, it is true that a lot of RCU operations already use READ_ONCE() and WRITE_ONCE() (which in practice likely would never be re-ordered wrt anything remotely interesting), but it is also true that that is not globally the case, and that it's not even necessarily always possible (ie bitfields etc). Reported-by: Herbert Xu Fixes: bb73c52bad36 ("rcu: Don't disable preemption for Tiny and Tree RCU readers") Cc: stable@kernel.org Cc: Boqun Feng Cc: Paul E. McKenney Signed-off-by: Linus Torvalds --- include/linux/rcupdate.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 922bb6848813..b25d20822e75 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -56,14 +56,12 @@ void __rcu_read_unlock(void); static inline void __rcu_read_lock(void) { - if (IS_ENABLED(CONFIG_PREEMPT_COUNT)) - preempt_disable(); + preempt_disable(); } static inline void __rcu_read_unlock(void) { - if (IS_ENABLED(CONFIG_PREEMPT_COUNT)) - preempt_enable(); + preempt_enable(); } static inline int rcu_preempt_depth(void) -- cgit v1.2.3 From f45e350b16f937a25e9acb931371d37fdabac9a5 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:12:34 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 260 Based on 1 normalized pattern(s): distributable under version 2 of the gnu general public license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Reviewed-by: Richard Fontana Reviewed-by: Steve Winslow Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141333.385647094@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/via-gpio.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/via-gpio.h b/include/linux/via-gpio.h index 8281aea3dd6d..ac34668fd442 100644 --- a/include/linux/via-gpio.h +++ b/include/linux/via-gpio.h @@ -1,8 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Support for viafb GPIO ports. * * Copyright 2009 Jonathan Corbet - * Distributable under version 2 of the GNU General Public License. */ #ifndef __VIA_GPIO_H__ -- cgit v1.2.3 From 08dbd0f8ef8d2a02319aec1e6c2aeb084468309e Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:12:41 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 and only version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 94 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141334.043630402@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/input/cyttsp.h | 16 +--------------- include/linux/platform_data/cyttsp4.h | 16 +--------------- 2 files changed, 2 insertions(+), 30 deletions(-) (limited to 'include/linux') diff --git a/include/linux/input/cyttsp.h b/include/linux/input/cyttsp.h index 586c8c95dcb0..118b9af6e01a 100644 --- a/include/linux/input/cyttsp.h +++ b/include/linux/input/cyttsp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Header file for: * Cypress TrueTouch(TM) Standard Product (TTSP) touchscreen drivers. @@ -9,22 +10,7 @@ * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc. * Copyright (C) 2012 Javier Martinez Canillas * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2, and only version 2, as published by the - * Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * * Contact Cypress Semiconductor at www.cypress.com (kev@cypress.com) - * */ #ifndef _CYTTSP_H_ #define _CYTTSP_H_ diff --git a/include/linux/platform_data/cyttsp4.h b/include/linux/platform_data/cyttsp4.h index 6eba54aff1dc..5dc9d2be384b 100644 --- a/include/linux/platform_data/cyttsp4.h +++ b/include/linux/platform_data/cyttsp4.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Header file for: * Cypress TrueTouch(TM) Standard Product (TTSP) touchscreen drivers. @@ -9,22 +10,7 @@ * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc. * Copyright (C) 2012 Javier Martinez Canillas * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2, and only version 2, as published by the - * Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * * Contact Cypress Semiconductor at www.cypress.com (kev@cypress.com) - * */ #ifndef _CYTTSP4_H_ #define _CYTTSP4_H_ -- cgit v1.2.3 From 04672fe6d69835f67ff6ffdbeb16db9fa21c10bb Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:12:42 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 268 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 46 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141334.135501091@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/uwb.h | 16 +--------------- include/linux/uwb/spec.h | 16 +--------------- include/linux/uwb/whci.h | 17 +---------------- include/linux/wimax/debug.h | 23 +---------------------- 4 files changed, 4 insertions(+), 68 deletions(-) (limited to 'include/linux') diff --git a/include/linux/uwb.h b/include/linux/uwb.h index 7dbbee9741b7..6918a61e1ac1 100644 --- a/include/linux/uwb.h +++ b/include/linux/uwb.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Ultra Wide Band * UWB API @@ -5,21 +6,6 @@ * Copyright (C) 2005-2006 Intel Corporation * Inaky Perez-Gonzalez * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * * FIXME: doc: overview of the API, different parts and pointers */ diff --git a/include/linux/uwb/spec.h b/include/linux/uwb/spec.h index 0df24bfcdb38..5f75caf7b4ba 100644 --- a/include/linux/uwb/spec.h +++ b/include/linux/uwb/spec.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Ultra Wide Band * UWB Standard definitions @@ -5,21 +6,6 @@ * Copyright (C) 2005-2006 Intel Corporation * Inaky Perez-Gonzalez * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * * All these definitions are based on the ECMA-368 standard. * * Note all definitions are Little Endian in the wire, and we will diff --git a/include/linux/uwb/whci.h b/include/linux/uwb/whci.h index 915ec23042d4..1a5c2cc2b008 100644 --- a/include/linux/uwb/whci.h +++ b/include/linux/uwb/whci.h @@ -1,25 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Wireless Host Controller Interface for Ultra-Wide-Band and Wireless USB * * Copyright (C) 2005-2006 Intel Corporation * Inaky Perez-Gonzalez * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * - * * References: * [WHCI] Wireless Host Controller Interface Specification for * Certified Wireless Universal Serial Bus, revision 0.95. diff --git a/include/linux/wimax/debug.h b/include/linux/wimax/debug.h index aaf24ba12c4d..7cb63e4ec0ae 100644 --- a/include/linux/wimax/debug.h +++ b/include/linux/wimax/debug.h @@ -1,29 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Linux WiMAX * Collection of tools to manage debug operations. * - * * Copyright (C) 2005-2007 Intel Corporation * Inaky Perez-Gonzalez * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * * Don't #include this file directly, read on! * - * * EXECUTING DEBUGGING ACTIONS OR NOT * * The main thing this framework provides is decission power to take a @@ -43,7 +27,6 @@ * always false at compile time will get the code depending on it * compiled out by optimization. * - * * DEBUG LEVELS * * It is up to the caller to define how much a debugging level is. @@ -52,14 +35,12 @@ * will always be taken). The increasing debug levels are used for * increased verbosity. * - * * USAGE * * Group the code in modules and submodules inside each module [which * in most cases maps to Linux modules and .c files that compose * those]. * - * * For each module, there is: * * - a MODULENAME (single word, legal C identifier) @@ -128,7 +109,6 @@ * NOTE: remember that even if this will show attached to some * particular instance of a device, the settings are *global*. * - * * On each submodule (for example, .c files), the debug infrastructure * should be included like this: * @@ -137,7 +117,6 @@ * * after #including all your include files. * - * * Now you can use the d_*() macros below [d_test(), d_fnstart(), * d_fnend(), d_printf(), d_dump()]. * -- cgit v1.2.3 From c942299924a70b458320846e53b742ba11e985b3 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:12:43 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 269 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 21 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141334.228102212@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/openvswitch.h | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) (limited to 'include/linux') diff --git a/include/linux/openvswitch.h b/include/linux/openvswitch.h index 379affc63e24..3b037bab32b0 100644 --- a/include/linux/openvswitch.h +++ b/include/linux/openvswitch.h @@ -1,19 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2007-2011 Nicira Networks. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA */ #ifndef _LINUX_OPENVSWITCH_H -- cgit v1.2.3 From 9c92ab61914157664a2fbdf926df0eb937838e45 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:17:56 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 Based on 1 normalized pattern(s): this software is licensed under the terms of the gnu general public license version 2 as published by the free software foundation and may be copied distributed and modified under those terms this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 285 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/arm-smccc.h | 11 +---------- include/linux/clk/sunxi-ng.h | 10 +--------- include/linux/cpu_pm.h | 11 +---------- include/linux/dma/qcom_bam_dma.h | 10 +--------- include/linux/extcon-provider.h | 10 +--------- include/linux/extcon.h | 10 +--------- include/linux/iio/common/cros_ec_sensors_core.h | 10 +--------- include/linux/input/auo-pixcir-ts.h | 12 +----------- include/linux/mfd/cros_ec.h | 10 +--------- include/linux/mfd/cros_ec_commands.h | 10 +--------- include/linux/platform_data/invensense_mpu6050.h | 10 +--------- include/linux/platform_data/shtc1.h | 11 +---------- include/linux/platform_data/zforce_ts.h | 10 +--------- include/linux/pstore_ram.h | 11 +---------- include/linux/tee_drv.h | 11 +---------- 15 files changed, 15 insertions(+), 142 deletions(-) (limited to 'include/linux') diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index 18863d56273c..080012a6f025 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2015, Linaro Limited - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef __LINUX_ARM_SMCCC_H #define __LINUX_ARM_SMCCC_H diff --git a/include/linux/clk/sunxi-ng.h b/include/linux/clk/sunxi-ng.h index 990f760f70e5..3cd14acde0a1 100644 --- a/include/linux/clk/sunxi-ng.h +++ b/include/linux/clk/sunxi-ng.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2017 Chen-Yu Tsai. All rights reserved. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_CLK_SUNXI_NG_H_ diff --git a/include/linux/cpu_pm.h b/include/linux/cpu_pm.h index 455b233dd3b1..552b8f9ea05e 100644 --- a/include/linux/cpu_pm.h +++ b/include/linux/cpu_pm.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2011 Google, Inc. * * Author: * Colin Cross - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef _LINUX_CPU_PM_H diff --git a/include/linux/dma/qcom_bam_dma.h b/include/linux/dma/qcom_bam_dma.h index 077d43a358e5..68fc0e643b1b 100644 --- a/include/linux/dma/qcom_bam_dma.h +++ b/include/linux/dma/qcom_bam_dma.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _QCOM_BAM_DMA_H diff --git a/include/linux/extcon-provider.h b/include/linux/extcon-provider.h index 2feca5881fa7..1c143d200caa 100644 --- a/include/linux/extcon-provider.h +++ b/include/linux/extcon-provider.h @@ -1,18 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * External Connector (extcon) framework * - linux/include/linux/extcon-provider.h for extcon provider device driver. * * Copyright (C) 2017 Samsung Electronics * Author: Chanwoo Choi - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_EXTCON_PROVIDER_H__ diff --git a/include/linux/extcon.h b/include/linux/extcon.h index 7f033b1ea568..2bdf643d8593 100644 --- a/include/linux/extcon.h +++ b/include/linux/extcon.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * External Connector (extcon) framework * - linux/include/linux/extcon.h for extcon consumer device driver. @@ -12,15 +13,6 @@ * based on switch class driver * Copyright (C) 2008 Google, Inc. * Author: Mike Lockwood - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_EXTCON_H__ diff --git a/include/linux/iio/common/cros_ec_sensors_core.h b/include/linux/iio/common/cros_ec_sensors_core.h index ce16445411ac..0c636b9fe8d7 100644 --- a/include/linux/iio/common/cros_ec_sensors_core.h +++ b/include/linux/iio/common/cros_ec_sensors_core.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ChromeOS EC sensor hub * * Copyright (C) 2016 Google, Inc - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __CROS_EC_SENSORS_CORE_H diff --git a/include/linux/input/auo-pixcir-ts.h b/include/linux/input/auo-pixcir-ts.h index 5049f21928e4..ed0776997a7a 100644 --- a/include/linux/input/auo-pixcir-ts.h +++ b/include/linux/input/auo-pixcir-ts.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Driver for AUO in-cell touchscreens * @@ -7,17 +8,6 @@ * * Copyright (c) 2008 QUALCOMM Incorporated. * Copyright (c) 2008 QUALCOMM USA, INC. - * - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef __AUO_PIXCIR_TS_H__ diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h index cfa78bb4990f..5ddca44be06d 100644 --- a/include/linux/mfd/cros_ec.h +++ b/include/linux/mfd/cros_ec.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ChromeOS EC multi-function device * * Copyright (C) 2012 Google, Inc - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_MFD_CROS_EC_H diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h index dcec96f01879..114614e20e4d 100644 --- a/include/linux/mfd/cros_ec_commands.h +++ b/include/linux/mfd/cros_ec_commands.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Host communication command constants for ChromeOS EC * * Copyright (C) 2012 Google, Inc * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * The ChromeOS EC multi function device is used to mux all the requests * to the EC device for its multiple features: keyboard controller, * battery charging and regulator control, firmware update. diff --git a/include/linux/platform_data/invensense_mpu6050.h b/include/linux/platform_data/invensense_mpu6050.h index 554b59801aa8..93974f4cfba1 100644 --- a/include/linux/platform_data/invensense_mpu6050.h +++ b/include/linux/platform_data/invensense_mpu6050.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 Invensense, Inc. -* -* This software is licensed under the terms of the GNU General Public -* License version 2, as published by the Free Software Foundation, and -* may be copied, distributed, and modified under those terms. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. */ #ifndef __INV_MPU6050_PLATFORM_H_ diff --git a/include/linux/platform_data/shtc1.h b/include/linux/platform_data/shtc1.h index 7b8c353f7dc8..5ba6f8f9a9a1 100644 --- a/include/linux/platform_data/shtc1.h +++ b/include/linux/platform_data/shtc1.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014 Sensirion AG, Switzerland * Author: Johannes Winkelmann - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef __SHTC1_H_ diff --git a/include/linux/platform_data/zforce_ts.h b/include/linux/platform_data/zforce_ts.h index 7bdece8ef33e..2463a4a856a6 100644 --- a/include/linux/platform_data/zforce_ts.h +++ b/include/linux/platform_data/zforce_ts.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* drivers/input/touchscreen/zforce.c * * Copyright (C) 2012-2013 MundoReader S.L. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_INPUT_ZFORCE_TS_H diff --git a/include/linux/pstore_ram.h b/include/linux/pstore_ram.h index 337971c41980..9cb9b9067298 100644 --- a/include/linux/pstore_ram.h +++ b/include/linux/pstore_ram.h @@ -1,17 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2010 Marco Stornelli * Copyright (C) 2011 Kees Cook * Copyright (C) 2011 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef __LINUX_PSTORE_RAM_H__ diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h index 4a49f80e7f71..7a03f68fb982 100644 --- a/include/linux/tee_drv.h +++ b/include/linux/tee_drv.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2015-2016, Linaro Limited - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef __TEE_DRV_H -- cgit v1.2.3 From 97fb5e8d9b57f10f294303c9a5d1bd033eded6bf Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:17:58 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 and only version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 294 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/iopoll.h | 11 +---------- include/linux/phy/phy-sun4i-usb.h | 10 +--------- include/linux/qcom_scm.h | 10 +--------- include/linux/serdev.h | 10 +--------- include/linux/spmi.h | 10 +--------- include/linux/ssbi.h | 10 +--------- 6 files changed, 6 insertions(+), 55 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iopoll.h b/include/linux/iopoll.h index b1d861caca16..3908353deec6 100644 --- a/include/linux/iopoll.h +++ b/include/linux/iopoll.h @@ -1,15 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2012-2014 The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef _LINUX_IOPOLL_H diff --git a/include/linux/phy/phy-sun4i-usb.h b/include/linux/phy/phy-sun4i-usb.h index 50aed92ea89c..91eb755ee73b 100644 --- a/include/linux/phy/phy-sun4i-usb.h +++ b/include/linux/phy/phy-sun4i-usb.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2015 Hans de Goede - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef PHY_SUN4I_USB_H_ diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h index d0aecc04c54b..3f12cc77fb58 100644 --- a/include/linux/qcom_scm.h +++ b/include/linux/qcom_scm.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright (c) 2010-2015, 2018, The Linux Foundation. All rights reserved. * Copyright (C) 2015 Linaro Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __QCOM_SCM_H #define __QCOM_SCM_H diff --git a/include/linux/serdev.h b/include/linux/serdev.h index 070bf4e92df7..9f14f9c12ec4 100644 --- a/include/linux/serdev.h +++ b/include/linux/serdev.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2016-2017 Linaro Ltd., Rob Herring - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_SERDEV_H #define _LINUX_SERDEV_H diff --git a/include/linux/spmi.h b/include/linux/spmi.h index 1396a255d2a2..394a3f68bad5 100644 --- a/include/linux/spmi.h +++ b/include/linux/spmi.h @@ -1,13 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_SPMI_H #define _LINUX_SPMI_H diff --git a/include/linux/ssbi.h b/include/linux/ssbi.h index 087b08a4d333..61007afba0cc 100644 --- a/include/linux/ssbi.h +++ b/include/linux/ssbi.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright (C) 2010 Google, Inc. * Copyright (c) 2011, Code Aurora Forum. All rights reserved. * Author: Dima Zavin - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_SSBI_H -- cgit v1.2.3 From 8e8e69d67e5fad1a1edf97acebd649a6c8f1febd Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:17:59 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 100 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.918357685@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/can/dev/peak_canfd.h | 10 +--------- include/linux/clock_cooling.h | 10 +--------- include/linux/mfd/si476x-core.h | 11 +---------- include/linux/mfd/si476x-platform.h | 11 +---------- include/linux/mfd/si476x-reports.h | 11 +---------- include/linux/regulator/act8865.h | 10 +--------- include/linux/spi/rspi.h | 10 +--------- include/linux/spi/sh_hspi.h | 10 +--------- 8 files changed, 8 insertions(+), 75 deletions(-) (limited to 'include/linux') diff --git a/include/linux/can/dev/peak_canfd.h b/include/linux/can/dev/peak_canfd.h index 46dceef2cfa6..511a37302fea 100644 --- a/include/linux/can/dev/peak_canfd.h +++ b/include/linux/can/dev/peak_canfd.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * CAN driver for PEAK System micro-CAN based adapters * * Copyright (C) 2003-2011 PEAK System-Technik GmbH * Copyright (C) 2011-2013 Stephane Grosjean - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published - * by the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. */ #ifndef PUCAN_H #define PUCAN_H diff --git a/include/linux/clock_cooling.h b/include/linux/clock_cooling.h index 4d1019d56f7f..b5cebf766e02 100644 --- a/include/linux/clock_cooling.h +++ b/include/linux/clock_cooling.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/clock_cooling.h * @@ -9,15 +10,6 @@ * Highly based on cpu_cooling.c. * Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com) * Copyright (C) 2012 Amit Daniel - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. */ #ifndef __CPU_COOLING_H__ diff --git a/include/linux/mfd/si476x-core.h b/include/linux/mfd/si476x-core.h index 674b45d5a757..4708c2b8512a 100644 --- a/include/linux/mfd/si476x-core.h +++ b/include/linux/mfd/si476x-core.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/media/si476x-core.h -- Common definitions for si476x core * device @@ -6,16 +7,6 @@ * Copyright (C) 2013 Andrey Smirnov * * Author: Andrey Smirnov - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * */ #ifndef SI476X_CORE_H diff --git a/include/linux/mfd/si476x-platform.h b/include/linux/mfd/si476x-platform.h index 88bb93b7a9d5..18363b773d07 100644 --- a/include/linux/mfd/si476x-platform.h +++ b/include/linux/mfd/si476x-platform.h @@ -1,19 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/media/si476x-platform.h -- Platform data specific definitions * * Copyright (C) 2013 Andrey Smirnov * * Author: Andrey Smirnov - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * */ #ifndef __SI476X_PLATFORM_H__ diff --git a/include/linux/mfd/si476x-reports.h b/include/linux/mfd/si476x-reports.h index e0b9455a79c0..93b34184699d 100644 --- a/include/linux/mfd/si476x-reports.h +++ b/include/linux/mfd/si476x-reports.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/media/si476x-platform.h -- Definitions of the data formats * returned by debugfs hooks @@ -5,16 +6,6 @@ * Copyright (C) 2013 Andrey Smirnov * * Author: Andrey Smirnov - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * */ #ifndef __SI476X_REPORTS_H__ diff --git a/include/linux/regulator/act8865.h b/include/linux/regulator/act8865.h index 113d861a1e4c..d25e24f596c3 100644 --- a/include/linux/regulator/act8865.h +++ b/include/linux/regulator/act8865.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * act8865.h -- Voltage regulation for active-semi act88xx PMUs * * Copyright (C) 2013 Atmel Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_REGULATOR_ACT8865_H diff --git a/include/linux/spi/rspi.h b/include/linux/spi/rspi.h index a693188cc08b..dbdfcc7a3db2 100644 --- a/include/linux/spi/rspi.h +++ b/include/linux/spi/rspi.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Renesas SPI driver * * Copyright (C) 2012 Renesas Solutions Corp. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_SPI_RENESAS_SPI_H__ diff --git a/include/linux/spi/sh_hspi.h b/include/linux/spi/sh_hspi.h index aa0d440ab4f0..02f36b2f3ff7 100644 --- a/include/linux/spi/sh_hspi.h +++ b/include/linux/spi/sh_hspi.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2011 Kuninori Morimoto - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef SH_HSPI_H #define SH_HSPI_H -- cgit v1.2.3 From d95236782b8d6535d5a9f3fce15af8e29c195b34 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:18:01 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 287 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license v2 0 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 23 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.115786599@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/edd.h | 11 +---------- include/linux/firmware-map.h | 11 +---------- include/linux/iscsi_boot_sysfs.h | 10 +--------- include/linux/iscsi_ibft.h | 10 +--------- 4 files changed, 4 insertions(+), 38 deletions(-) (limited to 'include/linux') diff --git a/include/linux/edd.h b/include/linux/edd.h index 83d4371ec996..1c16fbcb81c0 100644 --- a/include/linux/edd.h +++ b/include/linux/edd.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/edd.h * Copyright (C) 2002, 2003, 2004 Dell Inc. @@ -16,16 +17,6 @@ * transferred into the edd structure, and in drivers/firmware/edd.c, that * information is used to identify BIOS boot disk. The code in setup.S * is very sensitive to the size of these structures. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License v2.0 as published by - * the Free Software Foundation - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef _LINUX_EDD_H #define _LINUX_EDD_H diff --git a/include/linux/firmware-map.h b/include/linux/firmware-map.h index 71d4fa721db9..3e1077e99002 100644 --- a/include/linux/firmware-map.h +++ b/include/linux/firmware-map.h @@ -1,17 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/firmware-map.h: * Copyright (C) 2008 SUSE LINUX Products GmbH * by Bernhard Walle - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License v2.0 as published by - * the Free Software Foundation - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef _LINUX_FIRMWARE_MAP_H #define _LINUX_FIRMWARE_MAP_H diff --git a/include/linux/iscsi_boot_sysfs.h b/include/linux/iscsi_boot_sysfs.h index 10923d730486..5f244d3f1472 100644 --- a/include/linux/iscsi_boot_sysfs.h +++ b/include/linux/iscsi_boot_sysfs.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Export the iSCSI boot info to userland via sysfs. * * Copyright (C) 2010 Red Hat, Inc. All rights reserved. * Copyright (C) 2010 Mike Christie - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License v2.0 as published by - * the Free Software Foundation - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _ISCSI_BOOT_SYSFS_ #define _ISCSI_BOOT_SYSFS_ diff --git a/include/linux/iscsi_ibft.h b/include/linux/iscsi_ibft.h index 605cc5c333d9..b7b45ca82bea 100644 --- a/include/linux/iscsi_ibft.h +++ b/include/linux/iscsi_ibft.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2007 Red Hat, Inc. * by Peter Jones @@ -7,15 +8,6 @@ * by Konrad Rzeszutek * * This code exposes the iSCSI Boot Format Table to userland via sysfs. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License v2.0 as published by - * the Free Software Foundation - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef ISCSI_IBFT_H -- cgit v1.2.3 From 2025cf9e193de05b0654570dd639acb49ebd3adf Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:18:02 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 263 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/iio/accel/kxcjk_1013.h | 10 +--------- include/linux/intel-svm.h | 10 +--------- include/linux/mfd/rk808.h | 10 +--------- include/linux/phy/tegra/xusb.h | 10 +--------- include/linux/platform_data/gpio-dwapb.h | 10 +--------- include/linux/platform_data/i2c-designware.h | 10 +--------- include/linux/platform_data/x86/clk-pmc-atom.h | 10 +--------- include/linux/platform_data/x86/pmc_atom.h | 11 +---------- include/linux/resource_ext.h | 10 +--------- include/linux/switchtec.h | 11 +---------- 10 files changed, 10 insertions(+), 92 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iio/accel/kxcjk_1013.h b/include/linux/iio/accel/kxcjk_1013.h index fd1d540ea62d..8c3c78bc9f91 100644 --- a/include/linux/iio/accel/kxcjk_1013.h +++ b/include/linux/iio/accel/kxcjk_1013.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * KXCJK-1013 3-axis accelerometer Interface * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef __IIO_KXCJK_1013_H__ diff --git a/include/linux/intel-svm.h b/include/linux/intel-svm.h index e3f76315ca4d..54ffcc6a322e 100644 --- a/include/linux/intel-svm.h +++ b/include/linux/intel-svm.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright © 2015 Intel Corporation. * * Authors: David Woodhouse - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef __INTEL_SVM_H__ diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h index d3156594674c..1d831c7222b9 100644 --- a/include/linux/mfd/rk808.h +++ b/include/linux/mfd/rk808.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Register definitions for Rockchip's RK808/RK818 PMIC * @@ -9,15 +10,6 @@ * Copyright (C) 2016 PHYTEC Messtechnik GmbH * * Author: Wadim Egorov - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef __LINUX_REGULATOR_RK808_H diff --git a/include/linux/phy/tegra/xusb.h b/include/linux/phy/tegra/xusb.h index 8e1a57a78d9f..ee59562c8354 100644 --- a/include/linux/phy/tegra/xusb.h +++ b/include/linux/phy/tegra/xusb.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef PHY_TEGRA_XUSB_H diff --git a/include/linux/platform_data/gpio-dwapb.h b/include/linux/platform_data/gpio-dwapb.h index 419cfacb4b42..3c606c450d05 100644 --- a/include/linux/platform_data/gpio-dwapb.h +++ b/include/linux/platform_data/gpio-dwapb.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright(c) 2014 Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef GPIO_DW_APB_H diff --git a/include/linux/platform_data/i2c-designware.h b/include/linux/platform_data/i2c-designware.h index 7a61fb27c25b..014c4a5a7e13 100644 --- a/include/linux/platform_data/i2c-designware.h +++ b/include/linux/platform_data/i2c-designware.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright(c) 2014 Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef I2C_DESIGNWARE_H diff --git a/include/linux/platform_data/x86/clk-pmc-atom.h b/include/linux/platform_data/x86/clk-pmc-atom.h index 7a37ac27d0fb..2bdcf39b13ed 100644 --- a/include/linux/platform_data/x86/clk-pmc-atom.h +++ b/include/linux/platform_data/x86/clk-pmc-atom.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Intel Atom platform clocks for BayTrail and CherryTrail SoC. * * Copyright (C) 2016, Intel Corporation * Author: Irina Tirdea - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef __PLATFORM_DATA_X86_CLK_PMC_ATOM_H diff --git a/include/linux/platform_data/x86/pmc_atom.h b/include/linux/platform_data/x86/pmc_atom.h index e4905fe69c38..022bcea9edec 100644 --- a/include/linux/platform_data/x86/pmc_atom.h +++ b/include/linux/platform_data/x86/pmc_atom.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Intel Atom SOC Power Management Controller Header File * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * */ #ifndef PMC_ATOM_H diff --git a/include/linux/resource_ext.h b/include/linux/resource_ext.h index e2bf63d881d4..06da59b23b79 100644 --- a/include/linux/resource_ext.h +++ b/include/linux/resource_ext.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2015, Intel Corporation * Author: Jiang Liu - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef _LINUX_RESOURCE_EXT_H #define _LINUX_RESOURCE_EXT_H diff --git a/include/linux/switchtec.h b/include/linux/switchtec.h index 0cfc34ac37fb..e295515bc3f3 100644 --- a/include/linux/switchtec.h +++ b/include/linux/switchtec.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Microsemi Switchtec PCIe Driver * Copyright (c) 2017, Microsemi Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * */ #ifndef _SWITCHTEC_H -- cgit v1.2.3 From 4e43d779e5dc190a20c8677244193bb50d41fca2 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:18:04 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 290 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details the full gnu general public license is included in this distribution in the file called copying extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 39 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.397680977@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mic_bus.h | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mic_bus.h b/include/linux/mic_bus.h index 504d54c71bdb..491156a2359f 100644 --- a/include/linux/mic_bus.h +++ b/include/linux/mic_bus.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Intel MIC Platform Software Stack (MPSS) * * Copyright(c) 2014 Intel Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2, as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". - * * Intel MIC Bus driver. * * This implementation is very similar to the the virtio bus driver -- cgit v1.2.3 From 5b497af42fab12cadc0e29bcb7052cf9963603f5 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:18:09 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 64 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.894819585@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/libnvdimm.h | 10 +--------- include/linux/nd.h | 10 +--------- 2 files changed, 2 insertions(+), 18 deletions(-) (limited to 'include/linux') diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h index feb342d026f2..03d5c3aece9d 100644 --- a/include/linux/libnvdimm.h +++ b/include/linux/libnvdimm.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * libnvdimm - Non-volatile-memory Devices Subsystem * * Copyright(c) 2013-2015 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. */ #ifndef __LIBNVDIMM_H__ #define __LIBNVDIMM_H__ diff --git a/include/linux/nd.h b/include/linux/nd.h index 43c181a6add5..f778f962d1b6 100644 --- a/include/linux/nd.h +++ b/include/linux/nd.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright(c) 2013-2015 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. */ #ifndef __LINUX_ND_H__ #define __LINUX_ND_H__ -- cgit v1.2.3 From a32dd67d8a3038a7b3f2331b1483f4b480f9bf8c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:18:11 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 297 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141902.078500636@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/hidraw.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/hidraw.h b/include/linux/hidraw.h index ddf52612eed8..cd67f4ca5599 100644 --- a/include/linux/hidraw.h +++ b/include/linux/hidraw.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2007 Jiri Kosina */ -/* - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - */ #ifndef _HIDRAW_H #define _HIDRAW_H -- cgit v1.2.3 From 432d4130f5bbd2edb6ac67dbd511287cd6da156a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 07:18:14 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 300 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program see the file copying if not write to the free software foundation 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 3 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141902.366626771@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mfd/lpc_ich.h | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/lpc_ich.h b/include/linux/mfd/lpc_ich.h index fba8fcb54f8c..6ddca2bbb3a8 100644 --- a/include/linux/mfd/lpc_ich.h +++ b/include/linux/mfd/lpc_ich.h @@ -1,21 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/drivers/mfd/lpc_ich.h * * Copyright (c) 2012 Extreme Engineering Solution, Inc. * Author: Aaron Sierra - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License 2 as published - * by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef LPC_ICH_H #define LPC_ICH_H -- cgit v1.2.3 From 5efdfe759aae603496ad31861d800a1ea8508f3e Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:21 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 305 Based on 1 normalized pattern(s): licensed under the gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 6 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Reviewed-by: Armijn Hemel Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000433.961827334@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/uio_driver.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h index a3cd7cb67a69..01081c4726c0 100644 --- a/include/linux/uio_driver.h +++ b/include/linux/uio_driver.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/uio_driver.h * @@ -7,8 +8,6 @@ * Copyright(C) 2006, Greg Kroah-Hartman * * Userspace IO driver. - * - * Licensed under the GPLv2 only. */ #ifndef _UIO_DRIVER_H_ -- cgit v1.2.3 From dcc4086d9e1abaf0c5477eaf14fec5ca903eb57d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:23 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 308 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses the full gnu general public license is included in this distribution in the file called copying extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 12 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000434.160381502@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/avf/virtchnl.h | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) (limited to 'include/linux') diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h index 7605b5919c3a..191621ff7594 100644 --- a/include/linux/avf/virtchnl.h +++ b/include/linux/avf/virtchnl.h @@ -1,23 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /******************************************************************************* * * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver * Copyright(c) 2013 - 2014 Intel Corporation. * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program. If not, see . - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". - * * Contact Information: * e1000-devel Mailing List * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 -- cgit v1.2.3 From f6cc69f1f384f91eda7d7aca81f92f5538b8a50c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:24 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 309 Based on 2 normalized pattern(s): it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 11 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000434.249870634@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/powercap.h | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'include/linux') diff --git a/include/linux/powercap.h b/include/linux/powercap.h index f0a4e6257dcc..4537f57f9e42 100644 --- a/include/linux/powercap.h +++ b/include/linux/powercap.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * powercap.h: Data types and headers for sysfs power capping interface * Copyright (c) 2013, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc. - * */ #ifndef __POWERCAP_H__ -- cgit v1.2.3 From 49833cbeafa48f070199956b95051f71b6a13e10 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:26 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 311 Based on 1 normalized pattern(s): this is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Reviewed-by: Alexios Zavras Reviewed-by: Armijn Hemel Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000434.434198430@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/sudmac.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sudmac.h b/include/linux/sudmac.h index 377b8a5788fa..cccc0a665d26 100644 --- a/include/linux/sudmac.h +++ b/include/linux/sudmac.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Header for the SUDMAC driver * * Copyright (C) 2013 Renesas Solutions Corp. - * - * This is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. */ #ifndef SUDMAC_H #define SUDMAC_H -- cgit v1.2.3 From aecd8454c0fa0f0a16c91bae9b92739b61676151 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:27 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 312 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the version 2 of the gnu general public license as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 3 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Reviewed-by: Kate Stewart Reviewed-by: Armijn Hemel Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000434.524820338@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mfd/as3711.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/as3711.h b/include/linux/mfd/as3711.h index ddd0b953323b..4be16b4d2c8a 100644 --- a/include/linux/mfd/as3711.h +++ b/include/linux/mfd/as3711.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AS3711 PMIC MFC driver header * * Copyright (C) 2012 Renesas Electronics Corporation * Author: Guennadi Liakhovetski, - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the version 2 of the GNU General Public License as - * published by the Free Software Foundation */ #ifndef MFD_AS3711_H -- cgit v1.2.3 From 1237a75addc781baa3a37355e520d1db01a34210 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:29 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 314 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa the full gnu general public license is included in this distribution in the file called copying extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Reviewed-by: Armijn Hemel Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000434.706787045@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/stmmac.h | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) (limited to 'include/linux') diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index 4335bd771ce5..1a0bb622cf10 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -1,24 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /******************************************************************************* Header file for stmmac platform data Copyright (C) 2009 STMicroelectronics Ltd - This program is free software; you can redistribute it and/or modify it - under the terms and conditions of the GNU General Public License, - version 2, as published by the Free Software Foundation. - - This program is distributed in the hope it will be useful, but WITHOUT - ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - more details. - - You should have received a copy of the GNU General Public License along with - this program; if not, write to the Free Software Foundation, Inc., - 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - - The full GNU General Public License is included in this distribution in - the file called "COPYING". Author: Giuseppe Cavallaro *******************************************************************************/ -- cgit v1.2.3 From 3b20eb23724d493eca79f02b1e062bd5432e29d0 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:35 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 320 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 33 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000435.254582722@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/acpi_iort.h | 14 +------------- include/linux/dmar.h | 14 +------------- include/linux/hyperv.h | 15 +-------------- include/linux/intel-iommu.h | 14 +------------- 4 files changed, 4 insertions(+), 53 deletions(-) (limited to 'include/linux') diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h index 723e4dfa1c14..8e7e2ec37f1b 100644 --- a/include/linux/acpi_iort.h +++ b/include/linux/acpi_iort.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2016, Semihalf * Author: Tomasz Nowicki - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 Temple - * Place - Suite 330, Boston, MA 02111-1307 USA. */ #ifndef __ACPI_IORT_H__ diff --git a/include/linux/dmar.h b/include/linux/dmar.h index f8af1d770520..28813c6f44b6 100644 --- a/include/linux/dmar.h +++ b/include/linux/dmar.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2006, Intel Corporation. * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 Temple - * Place - Suite 330, Boston, MA 02111-1307 USA. - * * Copyright (C) Ashok Raj * Copyright (C) Shaohua Li */ diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 8b9a93c99c9b..6256cc34c4a6 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -1,25 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * * Copyright (c) 2011, Microsoft Corporation. * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 Temple - * Place - Suite 330, Boston, MA 02111-1307 USA. - * * Authors: * Haiyang Zhang * Hank Janssen * K. Y. Srinivasan - * */ #ifndef _HYPERV_H diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h index 6925a18a5ca3..6a8dd4af0147 100644 --- a/include/linux/intel-iommu.h +++ b/include/linux/intel-iommu.h @@ -1,22 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright © 2006-2015, Intel Corporation. * * Authors: Ashok Raj * Anil S Keshavamurthy * David Woodhouse - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 Temple - * Place - Suite 330, Boston, MA 02111-1307 USA. */ #ifndef _INTEL_IOMMU_H_ -- cgit v1.2.3 From 685a6bf8485e6319c4dd070c02491f9163c23083 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:36 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 and no later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 33 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000435.345978407@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/vm_sockets.h | 10 +--------- include/linux/vmw_vmci_api.h | 10 +--------- include/linux/vmw_vmci_defs.h | 10 +--------- 3 files changed, 3 insertions(+), 27 deletions(-) (limited to 'include/linux') diff --git a/include/linux/vm_sockets.h b/include/linux/vm_sockets.h index 0805eecba8f7..33f1a2ecd905 100644 --- a/include/linux/vm_sockets.h +++ b/include/linux/vm_sockets.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * VMware vSockets Driver * * Copyright (C) 2007-2013 VMware, Inc. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation version 2 and no later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef _VM_SOCKETS_H diff --git a/include/linux/vmw_vmci_api.h b/include/linux/vmw_vmci_api.h index 63df3a2a8ce5..acd9fafe4fc6 100644 --- a/include/linux/vmw_vmci_api.h +++ b/include/linux/vmw_vmci_api.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * VMware VMCI Driver * * Copyright (C) 2012 VMware, Inc. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation version 2 and no later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. */ #ifndef __VMW_VMCI_API_H__ diff --git a/include/linux/vmw_vmci_defs.h b/include/linux/vmw_vmci_defs.h index 0c06178e4985..77ac9c7b9483 100644 --- a/include/linux/vmw_vmci_defs.h +++ b/include/linux/vmw_vmci_defs.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * VMware VMCI Driver * * Copyright (C) 2012 VMware, Inc. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation version 2 and no later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. */ #ifndef _VMW_VMCI_DEF_H_ -- cgit v1.2.3 From 0b156947b88956cc97015c91a37529073416381b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:39 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 324 Based on 1 normalized pattern(s): this file is provided under the gplv2 license gpl license summary [copyright] [c] [2015] [intel] [deutschland] [gmbh] this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details the full gnu general public license is included in this distribution in the file called copying extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Armijn Hemel Reviewed-by: Alexios Zavras Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000435.636161379@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/devcoredump.h | 17 +---------------- 1 file changed, 1 insertion(+), 16 deletions(-) (limited to 'include/linux') diff --git a/include/linux/devcoredump.h b/include/linux/devcoredump.h index 269521f143ac..c008169ed2c6 100644 --- a/include/linux/devcoredump.h +++ b/include/linux/devcoredump.h @@ -1,21 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* - * This file is provided under the GPLv2 license. - * - * GPL LICENSE SUMMARY - * * Copyright(c) 2015 Intel Deutschland GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * The full GNU General Public License is included in this distribution - * in the file called COPYING. */ #ifndef __DEVCOREDUMP_H #define __DEVCOREDUMP_H -- cgit v1.2.3 From 0fc479b1ad6358d2440faf79a43d422065b77dc0 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:42 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 328 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license v2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see https www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Armijn Hemel Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000435.923873561@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/sbitmap.h | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sbitmap.h b/include/linux/sbitmap.h index 20f3e3f029b9..a986ac12a848 100644 --- a/include/linux/sbitmap.h +++ b/include/linux/sbitmap.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Fast and scalable bitmaps. * * Copyright (C) 2016 Facebook * Copyright (C) 2013-2014 Jens Axboe - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License v2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . */ #ifndef __LINUX_SCALE_BITMAP_H -- cgit v1.2.3 From 4505153954fdb1465d2b178288a9bf646f2a2166 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:47 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 136 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.384967451@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/amd-iommu.h | 14 +------------- include/linux/cper.h | 14 +------------- include/linux/dma-debug.h | 14 +------------- include/linux/input/kxtj9.h | 15 +-------------- include/linux/iommu.h | 14 +------------- include/linux/kmemleak.h | 14 +------------- include/linux/llist.h | 14 +------------- include/linux/mfd/sta2x11-mfd.h | 14 +------------- include/linux/platform_data/eth-netx.h | 14 +------------- include/linux/pstore.h | 14 +------------- include/linux/regulator/tps6507x.h | 14 +------------- include/linux/ti_wilink_st.h | 15 +-------------- 12 files changed, 12 insertions(+), 158 deletions(-) (limited to 'include/linux') diff --git a/include/linux/amd-iommu.h b/include/linux/amd-iommu.h index 09751d349963..4a4d00646040 100644 --- a/include/linux/amd-iommu.h +++ b/include/linux/amd-iommu.h @@ -1,20 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2007-2010 Advanced Micro Devices, Inc. * Author: Joerg Roedel * Leo Duran - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _ASM_X86_AMD_IOMMU_H diff --git a/include/linux/cper.h b/include/linux/cper.h index cc4980bb0f65..4f005d95ce88 100644 --- a/include/linux/cper.h +++ b/include/linux/cper.h @@ -1,21 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * UEFI Common Platform Error Record * * Copyright (C) 2010, Intel Corp. * Author: Huang Ying - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef LINUX_CPER_H diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h index cb422cbe587d..4208f94d93f7 100644 --- a/include/linux/dma-debug.h +++ b/include/linux/dma-debug.h @@ -1,20 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2008 Advanced Micro Devices, Inc. * * Author: Joerg Roedel - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __DMA_DEBUG_H diff --git a/include/linux/input/kxtj9.h b/include/linux/input/kxtj9.h index d415579b56fe..46e231986fde 100644 --- a/include/linux/input/kxtj9.h +++ b/include/linux/input/kxtj9.h @@ -1,20 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2011 Kionix, Inc. * Written by Chris Hudson - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - * 02111-1307, USA */ #ifndef __KXTJ9_H__ diff --git a/include/linux/iommu.h b/include/linux/iommu.h index a815cf6f6f47..e552c3b63f6f 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2007-2008 Advanced Micro Devices, Inc. * Author: Joerg Roedel - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __LINUX_IOMMU_H diff --git a/include/linux/kmemleak.h b/include/linux/kmemleak.h index 5ac416e2d339..34684b2026ab 100644 --- a/include/linux/kmemleak.h +++ b/include/linux/kmemleak.h @@ -1,21 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/kmemleak.h * * Copyright (C) 2008 ARM Limited * Written by Catalin Marinas - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __KMEMLEAK_H diff --git a/include/linux/llist.h b/include/linux/llist.h index 85abc2915e8d..2e9c7215882b 100644 --- a/include/linux/llist.h +++ b/include/linux/llist.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef LLIST_H #define LLIST_H /* @@ -45,19 +46,6 @@ * * Copyright 2010,2011 Intel Corp. * Author: Huang Ying - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation; - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include diff --git a/include/linux/mfd/sta2x11-mfd.h b/include/linux/mfd/sta2x11-mfd.h index 9a855ac11cbf..2001ca5c44a9 100644 --- a/include/linux/mfd/sta2x11-mfd.h +++ b/include/linux/mfd/sta2x11-mfd.h @@ -1,20 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2009-2011 Wind River Systems, Inc. * Copyright (c) 2011 ST Microelectronics (Alessandro Rubini) * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * * The STMicroelectronics ConneXt (STA2X11) chip has several unrelated * functions in one PCI endpoint functions. This driver simply * registers the platform devices in this iomemregion and exports a few diff --git a/include/linux/platform_data/eth-netx.h b/include/linux/platform_data/eth-netx.h index a395159725d5..a3a6322668d8 100644 --- a/include/linux/platform_data/eth-netx.h +++ b/include/linux/platform_data/eth-netx.h @@ -1,18 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2005 Sascha Hauer , Pengutronix - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __ETH_NETX_H diff --git a/include/linux/pstore.h b/include/linux/pstore.h index b146181e8709..e779441e6d26 100644 --- a/include/linux/pstore.h +++ b/include/linux/pstore.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Persistent Storage - pstore.h * @@ -5,19 +6,6 @@ * * This code is the generic layer to export data records from platform * level persistent storage via a file system. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LINUX_PSTORE_H #define _LINUX_PSTORE_H diff --git a/include/linux/regulator/tps6507x.h b/include/linux/regulator/tps6507x.h index 4892f591bab1..58117575de8a 100644 --- a/include/linux/regulator/tps6507x.h +++ b/include/linux/regulator/tps6507x.h @@ -1,20 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * tps6507x.h -- Voltage regulation for the Texas Instruments TPS6507X * * Copyright (C) 2010 Texas Instruments, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef REGULATOR_TPS6507X diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h index f2293028ab9d..eb6cbdf10e50 100644 --- a/include/linux/ti_wilink_st.h +++ b/include/linux/ti_wilink_st.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Shared Transport Header file * To be included by the protocol stack drivers for @@ -6,20 +7,6 @@ * * Copyright (C) 2009-2010 Texas Instruments * Author: Pavan Savoy - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ #ifndef TI_WILINK_ST_H -- cgit v1.2.3 From a61127c2130236168321cc76c5a58e15c00ad154 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:49 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 111 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.567572064@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/async_tx.h | 15 +-------------- include/linux/hid-sensor-hub.h | 15 +-------------- include/linux/hid-sensor-ids.h | 15 +-------------- include/linux/padata.h | 14 +------------- include/linux/tboot.h | 15 +-------------- 5 files changed, 5 insertions(+), 69 deletions(-) (limited to 'include/linux') diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h index 28e3cf1465ab..75e582b8d2d9 100644 --- a/include/linux/async_tx.h +++ b/include/linux/async_tx.h @@ -1,19 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright © 2006, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #ifndef _ASYNC_TX_H_ #define _ASYNC_TX_H_ diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h index dc12f5c4b076..46bcef380446 100644 --- a/include/linux/hid-sensor-hub.h +++ b/include/linux/hid-sensor-hub.h @@ -1,20 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * HID Sensors Driver * Copyright (c) 2012, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #ifndef _HID_SENSORS_HUB_H #define _HID_SENSORS_HUB_H diff --git a/include/linux/hid-sensor-ids.h b/include/linux/hid-sensor-ids.h index 76033e0420a7..d82a97e311d3 100644 --- a/include/linux/hid-sensor-ids.h +++ b/include/linux/hid-sensor-ids.h @@ -1,20 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * HID Sensors Driver * Copyright (c) 2012, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #ifndef _HID_SENSORS_IDS_H #define _HID_SENSORS_IDS_H diff --git a/include/linux/padata.h b/include/linux/padata.h index 5d13d25da2c8..56f09e36f770 100644 --- a/include/linux/padata.h +++ b/include/linux/padata.h @@ -1,21 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * padata.h - header for the padata parallelization interface * * Copyright (C) 2008, 2009 secunet Security Networks AG * Copyright (C) 2008, 2009 Steffen Klassert - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef PADATA_H diff --git a/include/linux/tboot.h b/include/linux/tboot.h index 9a54b331f938..5424bc6feac8 100644 --- a/include/linux/tboot.h +++ b/include/linux/tboot.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * tboot.h: shared data structure with tboot and kernel and functions * used by kernel for runtime support of Intel(R) Trusted * Execution Technology * * Copyright (c) 2006-2009, Intel Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #ifndef _LINUX_TBOOT_H -- cgit v1.2.3 From 2b27bdcc20958d644d04f9f12d683e52b37a5427 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:50 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 246 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.674189849@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/bch.h | 14 +------------- include/linux/hsi/hsi.h | 15 +-------------- include/linux/hsi/ssi_protocol.h | 15 +-------------- include/linux/leds-tca6507.h | 15 +-------------- include/linux/mfd/aat2870.h | 15 +-------------- include/linux/mfd/twl4030-audio.h | 16 +--------------- include/linux/mfd/twl6040.h | 16 +--------------- include/linux/mfd/wl1273-core.h | 15 +-------------- include/linux/phonet.h | 15 +-------------- include/linux/platform_data/apds990x.h | 16 +--------------- include/linux/platform_data/bh1770glc.h | 16 +--------------- include/linux/platform_data/leds-pca963x.h | 15 +-------------- include/linux/platform_data/omap-twl4030.h | 15 +-------------- include/linux/pm2301_charger.h | 15 +-------------- include/linux/wl12xx.h | 16 +--------------- 15 files changed, 15 insertions(+), 214 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bch.h b/include/linux/bch.h index 295b4ef153bb..aa765af85c38 100644 --- a/include/linux/bch.h +++ b/include/linux/bch.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Generic binary BCH encoding/decoding library * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 51 - * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * * Copyright © 2011 Parrot S.A. * * Author: Ivan Djelic diff --git a/include/linux/hsi/hsi.h b/include/linux/hsi/hsi.h index 57402544b53f..6ca92bff02c6 100644 --- a/include/linux/hsi/hsi.h +++ b/include/linux/hsi/hsi.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * HSI core header file. * * Copyright (C) 2010 Nokia Corporation. All rights reserved. * * Contact: Carlos Chinea - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #ifndef __LINUX_HSI_H__ diff --git a/include/linux/hsi/ssi_protocol.h b/include/linux/hsi/ssi_protocol.h index 1433651be0dc..2d6f3cfa7dea 100644 --- a/include/linux/hsi/ssi_protocol.h +++ b/include/linux/hsi/ssi_protocol.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ssip_slave.h * @@ -6,20 +7,6 @@ * Copyright (C) 2010 Nokia Corporation. All rights reserved. * * Contact: Carlos Chinea - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #ifndef __LINUX_SSIP_SLAVE_H__ diff --git a/include/linux/leds-tca6507.h b/include/linux/leds-tca6507.h index dcabf4fa2aef..50d330ed1100 100644 --- a/include/linux/leds-tca6507.h +++ b/include/linux/leds-tca6507.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * TCA6507 LED chip driver. * * Copyright (C) 2011 Neil Brown - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #ifndef __LINUX_TCA6507_H diff --git a/include/linux/mfd/aat2870.h b/include/linux/mfd/aat2870.h index f7316c29bdec..af7267c480ee 100644 --- a/include/linux/mfd/aat2870.h +++ b/include/linux/mfd/aat2870.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/mfd/aat2870.h * * Copyright (c) 2011, NVIDIA Corporation. * Author: Jin Park - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #ifndef __LINUX_MFD_AAT2870_H diff --git a/include/linux/mfd/twl4030-audio.h b/include/linux/mfd/twl4030-audio.h index 3d22b72df076..1c28605dfda8 100644 --- a/include/linux/mfd/twl4030-audio.h +++ b/include/linux/mfd/twl4030-audio.h @@ -1,24 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MFD driver for twl4030 audio submodule * * Author: Peter Ujfalusi * * Copyright: (C) 2009 Nokia Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * */ #ifndef __TWL4030_CODEC_H__ diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h index a2e88761c09f..1fc7450bd8ab 100644 --- a/include/linux/mfd/twl6040.h +++ b/include/linux/mfd/twl6040.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MFD driver for twl6040 * @@ -5,21 +6,6 @@ * Misael Lopez Cruz * * Copyright: (C) 2011 Texas Instruments, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * */ #ifndef __TWL6040_CODEC_H__ diff --git a/include/linux/mfd/wl1273-core.h b/include/linux/mfd/wl1273-core.h index db2f3f454a1b..c28cf76d5c31 100644 --- a/include/linux/mfd/wl1273-core.h +++ b/include/linux/mfd/wl1273-core.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/mfd/wl1273-core.h * @@ -5,20 +6,6 @@ * * Copyright (C) 2010 Nokia Corporation * Author: Matti J. Aaltonen - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #ifndef WL1273_CORE_H diff --git a/include/linux/phonet.h b/include/linux/phonet.h index f691b04fc5ce..bc7d1e529efc 100644 --- a/include/linux/phonet.h +++ b/include/linux/phonet.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /** * file phonet.h * * Phonet sockets kernel interface * * Copyright (C) 2008 Nokia Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #ifndef LINUX_PHONET_H #define LINUX_PHONET_H diff --git a/include/linux/platform_data/apds990x.h b/include/linux/platform_data/apds990x.h index d186fcc5d257..94dfbaa365e1 100644 --- a/include/linux/platform_data/apds990x.h +++ b/include/linux/platform_data/apds990x.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * This file is part of the APDS990x sensor driver. * Chip is combined proximity and ambient light sensor. @@ -5,21 +6,6 @@ * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). * * Contact: Samu Onkalo - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * */ #ifndef __APDS990X_H__ diff --git a/include/linux/platform_data/bh1770glc.h b/include/linux/platform_data/bh1770glc.h index 8b5e2df36c72..cbb613915f0d 100644 --- a/include/linux/platform_data/bh1770glc.h +++ b/include/linux/platform_data/bh1770glc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * This file is part of the ROHM BH1770GLC / OSRAM SFH7770 sensor driver. * Chip is combined proximity and ambient light sensor. @@ -5,21 +6,6 @@ * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). * * Contact: Samu Onkalo - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * */ #ifndef __BH1770_H__ diff --git a/include/linux/platform_data/leds-pca963x.h b/include/linux/platform_data/leds-pca963x.h index 54e845ffb5ed..6091337ce4bf 100644 --- a/include/linux/platform_data/leds-pca963x.h +++ b/include/linux/platform_data/leds-pca963x.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * PCA963X LED chip driver. * * Copyright 2012 bct electronic GmbH * Copyright 2013 Qtechnology A/S - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #ifndef __LINUX_PCA963X_H diff --git a/include/linux/platform_data/omap-twl4030.h b/include/linux/platform_data/omap-twl4030.h index ee60ef79d792..8419c8caf54e 100644 --- a/include/linux/platform_data/omap-twl4030.h +++ b/include/linux/platform_data/omap-twl4030.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /** * omap-twl4030.h - ASoC machine driver for TI SoC based boards with twl4030 * codec, header. @@ -6,20 +7,6 @@ * All rights reserved. * * Author: Peter Ujfalusi - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #ifndef _OMAP_TWL4030_H_ diff --git a/include/linux/pm2301_charger.h b/include/linux/pm2301_charger.h index 85c16defe11a..b8fac96f05aa 100644 --- a/include/linux/pm2301_charger.h +++ b/include/linux/pm2301_charger.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * PM2301 charger driver. * * Copyright (C) 2012 ST Ericsson Corporation * * Contact: Olivier LAUNAY (olivier.launay@stericsson.com - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #ifndef __LINUX_PM2301_H diff --git a/include/linux/wl12xx.h b/include/linux/wl12xx.h index 95704cd4cfab..03d61f1d23ab 100644 --- a/include/linux/wl12xx.h +++ b/include/linux/wl12xx.h @@ -1,24 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * This file is part of wl12xx * * Copyright (C) 2009 Nokia Corporation * * Contact: Luciano Coelho - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * */ #ifndef _LINUX_WL12XX_H -- cgit v1.2.3 From 2b72c9e36c286abc78605e08d2985ee967986b89 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 29 May 2019 16:57:54 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 340 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 15 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000437.052642892@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/pe.h | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pe.h b/include/linux/pe.h index 3482b18a48b5..c86bd3a2f70f 100644 --- a/include/linux/pe.h +++ b/include/linux/pe.h @@ -1,19 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2011 Red Hat, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - * * Author(s): Peter Jones */ #ifndef __LINUX_PE_H -- cgit v1.2.3 From ddc64d0ac97814fcc42ed90a2ea0c69658806c67 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 31 May 2019 01:09:24 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 363 Based on 1 normalized pattern(s): released under terms in gpl version 2 see copying extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 5 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081035.689962394@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/sunrpc/cache.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h index 5a3e95017fc6..c7f38e897174 100644 --- a/include/linux/sunrpc/cache.h +++ b/include/linux/sunrpc/cache.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/sunrpc/cache.h * @@ -5,9 +6,6 @@ * used by sunrpc clients and servers. * * Copyright (C) 2002 Neil Brown - * - * Released under terms in GPL version 2. See COPYING. - * */ #ifndef _LINUX_SUNRPC_CACHE_H_ -- cgit v1.2.3 From 52a6e82ac27288f591c750f201de5c3e6ef24385 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 31 May 2019 01:09:26 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 365 Based on 1 normalized pattern(s): this file is released under the gplv2 see the file copying for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 3 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081035.872590698@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/syscalls.h | 4 +--- include/linux/tracepoint.h | 4 +--- 2 files changed, 2 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index e2870fe1be5b..2bcef4c70183 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -1,11 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * syscalls.h - Linux syscall interfaces (non-arch-specific) * * Copyright (c) 2004 Randy Dunlap * Copyright (c) 2004 Open Source Development Labs - * - * This file is released under the GPLv2. - * See the file COPYING for more details. */ #ifndef _LINUX_SYSCALLS_H diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 86b019aa2839..1fb11daa5c53 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _LINUX_TRACEPOINT_H #define _LINUX_TRACEPOINT_H @@ -9,9 +10,6 @@ * Copyright (C) 2008-2014 Mathieu Desnoyers * * Heavily inspired from the Linux Kernel Markers. - * - * This file is released under the GPLv2. - * See the file COPYING for more details. */ #include -- cgit v1.2.3 From 003cc6434e3fbdc6dc4753ba64047beb2a06a170 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 31 May 2019 01:09:28 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 367 Based on 1 normalized pattern(s): licensed under the gpl version 2 see copying for details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081036.055393719@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/ssb/ssb_driver_chipcommon.h | 3 +-- include/linux/ssb/ssb_driver_extif.h | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ssb/ssb_driver_chipcommon.h b/include/linux/ssb/ssb_driver_chipcommon.h index 6fcfe99bd999..c44335b011be 100644 --- a/include/linux/ssb/ssb_driver_chipcommon.h +++ b/include/linux/ssb/ssb_driver_chipcommon.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef LINUX_SSB_CHIPCO_H_ #define LINUX_SSB_CHIPCO_H_ @@ -9,8 +10,6 @@ * * Copyright 2005, Broadcom Corporation * Copyright 2006, Michael Buesch - * - * Licensed under the GPL version 2. See COPYING for details. */ /** ChipCommon core registers. **/ diff --git a/include/linux/ssb/ssb_driver_extif.h b/include/linux/ssb/ssb_driver_extif.h index a410e841eb91..3f8bc973d67d 100644 --- a/include/linux/ssb/ssb_driver_extif.h +++ b/include/linux/ssb/ssb_driver_extif.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Hardware-specific External Interface I/O core definitions * for the BCM47xx family of SiliconBackplane-based chips. @@ -14,8 +15,6 @@ * * Copyright 2005, Broadcom Corporation * Copyright 2006, Michael Buesch - * - * Licensed under the GPL version 2. See COPYING for details. */ #ifndef LINUX_SSB_EXTIFCORE_H_ #define LINUX_SSB_EXTIFCORE_H_ -- cgit v1.2.3 From a10e763b87134a9a4ca3a38b5c4b533e75ec63a3 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 31 May 2019 01:09:32 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 135 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081036.435762997@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mfd/lp87565.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/lp87565.h b/include/linux/mfd/lp87565.h index d0c91ba65525..e619def115b4 100644 --- a/include/linux/mfd/lp87565.h +++ b/include/linux/mfd/lp87565.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Functions to access LP87565 power management chip. * * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation version 2. */ #ifndef __LINUX_MFD_LP87565_H -- cgit v1.2.3 From 90832ef1c035dab7f5f05fcd8660a3dc0fb2afad Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 31 May 2019 01:09:52 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 394 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license only this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081038.287952587@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/platform_data/lm8323.h | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/lm8323.h b/include/linux/platform_data/lm8323.h index 478d668bc590..311999260614 100644 --- a/include/linux/platform_data/lm8323.h +++ b/include/linux/platform_data/lm8323.h @@ -1,18 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * lm8323.h - Configuration for LM8323 keypad driver. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation (version 2 of the License only). - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __LINUX_LM8323_H -- cgit v1.2.3 From d9df6c32909dbf87e250fec4a72478ab7b56f289 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 31 May 2019 01:09:54 -0700 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 396 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 of the license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081038.470437358@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/irqchip/irq-omap-intc.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/irqchip/irq-omap-intc.h b/include/linux/irqchip/irq-omap-intc.h index f19ccee7749f..216e5adf80ce 100644 --- a/include/linux/irqchip/irq-omap-intc.h +++ b/include/linux/irqchip/irq-omap-intc.h @@ -1,18 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /** * irq-omap-intc.h - INTC Idle Functions * * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com * * Author: Felipe Balbi - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 of - * the License as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __INCLUDE_LINUX_IRQCHIP_IRQ_OMAP_INTC_H -- cgit v1.2.3 From 579d8b5c8d61462fe44831ce79ee76f1d566b0c4 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jun 2019 10:08:36 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 421 Based on 1 normalized pattern(s): this package is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190113.723488978@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/regulator/fan53555.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/regulator/fan53555.h b/include/linux/regulator/fan53555.h index f13880e84d85..ce8df21863f0 100644 --- a/include/linux/regulator/fan53555.h +++ b/include/linux/regulator/fan53555.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * fan53555.h - Fairchild Regulator FAN53555 Driver * * Copyright (C) 2012 Marvell Technology Ltd. * Yunfan Zhang - * - * This package is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __FAN53555_H__ -- cgit v1.2.3 From 75a6faf617d107bdbc74d36ccf89f2280b96ac26 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jun 2019 10:08:37 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 101 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190113.822954939@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mfd/max77620.h | 5 +---- include/linux/platform_data/gpmc-omap.h | 5 +---- 2 files changed, 2 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/max77620.h b/include/linux/mfd/max77620.h index 82407fe85ca2..12ba157cb83f 100644 --- a/include/linux/mfd/max77620.h +++ b/include/linux/mfd/max77620.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Defining registers address and its bit definitions of MAX77620 and MAX20024 * * Copyright (C) 2016 NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. */ #ifndef _MFD_MAX77620_H_ diff --git a/include/linux/platform_data/gpmc-omap.h b/include/linux/platform_data/gpmc-omap.h index 67ccdb0e1606..ef663e570552 100644 --- a/include/linux/platform_data/gpmc-omap.h +++ b/include/linux/platform_data/gpmc-omap.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * OMAP GPMC Platform data * * Copyright (C) 2014 Texas Instruments, Inc. - http://www.ti.com * Roger Quadros - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. */ #ifndef _GPMC_OMAP_H_ -- cgit v1.2.3 From 722d94a3ad0fa4b1030b7b76ea9f8825448e7181 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jun 2019 10:08:39 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 424 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license 2 as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Armijn Hemel Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190114.019014114@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mfd/kempld.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/kempld.h b/include/linux/mfd/kempld.h index 26e0b469e567..643c096b93ac 100644 --- a/include/linux/mfd/kempld.h +++ b/include/linux/mfd/kempld.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Kontron PLD driver definitions * * Copyright (c) 2010-2012 Kontron Europe GmbH * Author: Michael Brunner - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License 2 as published - * by the Free Software Foundation. */ #ifndef _LINUX_MFD_KEMPLD_H_ -- cgit v1.2.3 From 55716d26439f5c4008b0bcb7f17d1f7c0d8fbcfc Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jun 2019 10:08:42 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 Based on 1 normalized pattern(s): this file is released under the gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 68 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190114.292346262@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/iova.h | 4 +--- include/linux/kernfs.h | 3 +-- include/linux/kref.h | 4 +--- include/linux/of_mdio.h | 3 +-- include/linux/of_net.h | 3 +-- include/linux/platform_data/i2c-imx.h | 3 +-- include/linux/platform_device.h | 3 +-- include/linux/pm_clock.h | 3 +-- include/linux/pm_domain.h | 3 +-- include/linux/pm_runtime.h | 3 +-- include/linux/stmp3xxx_rtc_wdt.h | 3 +-- include/linux/syscore_ops.h | 3 +-- include/linux/uwb/umc.h | 3 +-- 13 files changed, 13 insertions(+), 28 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iova.h b/include/linux/iova.h index 28a5128405f8..781b96ac706f 100644 --- a/include/linux/iova.h +++ b/include/linux/iova.h @@ -1,11 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2006, Intel Corporation. * - * This file is released under the GPLv2. - * * Copyright (C) 2006-2008 Intel Corporation * Author: Anil S Keshavamurthy - * */ #ifndef _IOVA_H_ diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index 2bf477f86eb1..936b61bd504e 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -1,7 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * kernfs.h - pseudo filesystem decoupled from vfs locking - * - * This file is released under the GPLv2. */ #ifndef __LINUX_KERNFS_H diff --git a/include/linux/kref.h b/include/linux/kref.h index cb00a0268061..d32e21a2538c 100644 --- a/include/linux/kref.h +++ b/include/linux/kref.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * kref.h - library routines for handling generic reference counted objects * @@ -7,9 +8,6 @@ * based on kobject.h which was: * Copyright (C) 2002-2003 Patrick Mochel * Copyright (C) 2002-2003 Open Source Development Labs - * - * This file is released under the GPLv2. - * */ #ifndef _KREF_H_ diff --git a/include/linux/of_mdio.h b/include/linux/of_mdio.h index f5db93bcd069..99cefe6f5edb 100644 --- a/include/linux/of_mdio.h +++ b/include/linux/of_mdio.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * OF helpers for the MDIO (Ethernet PHY) API * * Copyright (c) 2009 Secret Lab Technologies, Ltd. - * - * This file is released under the GPLv2 */ #ifndef __LINUX_OF_MDIO_H diff --git a/include/linux/of_net.h b/include/linux/of_net.h index 0f0346e6829c..6aeaea1775e6 100644 --- a/include/linux/of_net.h +++ b/include/linux/of_net.h @@ -1,7 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * OF helpers for network devices. - * - * This file is released under the GPLv2 */ #ifndef __LINUX_OF_NET_H diff --git a/include/linux/platform_data/i2c-imx.h b/include/linux/platform_data/i2c-imx.h index 8289d915e615..962bfc3273eb 100644 --- a/include/linux/platform_data/i2c-imx.h +++ b/include/linux/platform_data/i2c-imx.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * i2c.h - i.MX I2C driver header file * * Copyright (c) 2008, Darius Augulis - * - * This file is released under the GPLv2 */ #ifndef __ASM_ARCH_I2C_H_ diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index cc464850b71e..beb25f277889 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * platform_device.h - generic, centralized driver model * * Copyright (c) 2001-2003 Patrick Mochel * - * This file is released under the GPLv2 - * * See Documentation/driver-model/ for more information. */ diff --git a/include/linux/pm_clock.h b/include/linux/pm_clock.h index 09779b0ae720..8ddc7860e131 100644 --- a/include/linux/pm_clock.h +++ b/include/linux/pm_clock.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * pm_clock.h - Definitions and headers related to device clocks. * * Copyright (C) 2011 Rafael J. Wysocki , Renesas Electronics Corp. - * - * This file is released under the GPLv2. */ #ifndef _LINUX_PM_CLOCK_H diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index b21f35f0ee2e..91d9bf497071 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * pm_domain.h - Definitions and headers related to device power domains. * * Copyright (C) 2011 Rafael J. Wysocki , Renesas Electronics Corp. - * - * This file is released under the GPLv2. */ #ifndef _LINUX_PM_DOMAIN_H diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index 9dc6eebf62d2..22af69d237a6 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * pm_runtime.h - Device run-time power management helper functions. * * Copyright (C) 2009 Rafael J. Wysocki - * - * This file is released under the GPLv2. */ #ifndef _LINUX_PM_RUNTIME_H diff --git a/include/linux/stmp3xxx_rtc_wdt.h b/include/linux/stmp3xxx_rtc_wdt.h index 1dd12c96231b..be71a59b777d 100644 --- a/include/linux/stmp3xxx_rtc_wdt.h +++ b/include/linux/stmp3xxx_rtc_wdt.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * stmp3xxx_rtc_wdt.h * * Copyright (C) 2011 Wolfram Sang, Pengutronix e.K. - * - * This file is released under the GPLv2. */ #ifndef __LINUX_STMP3XXX_RTC_WDT_H #define __LINUX_STMP3XXX_RTC_WDT_H diff --git a/include/linux/syscore_ops.h b/include/linux/syscore_ops.h index 27b3b0bc41a9..ae4d48e4c970 100644 --- a/include/linux/syscore_ops.h +++ b/include/linux/syscore_ops.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * syscore_ops.h - System core operations. * * Copyright (C) 2011 Rafael J. Wysocki , Novell Inc. - * - * This file is released under the GPLv2. */ #ifndef _LINUX_SYSCORE_OPS_H diff --git a/include/linux/uwb/umc.h b/include/linux/uwb/umc.h index 02112299a1d3..ddbceb39ad15 100644 --- a/include/linux/uwb/umc.h +++ b/include/linux/uwb/umc.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * UWB Multi-interface Controller support. * * Copyright (C) 2007 Cambridge Silicon Radio Ltd. * - * This file is released under the GPLv2 - * * UMC (UWB Multi-interface Controller) capabilities (e.g., radio * controller, host controller) are presented as devices on the "umc" * bus. -- cgit v1.2.3 From 3e45610181bcc2c68d343a62c1d028890160ef79 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jun 2019 10:08:50 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 436 Based on 1 normalized pattern(s): distributed under the terms of the gnu gpl version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.032570679@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/semaphore.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h index 11c86fbfeb98..6694d0019a68 100644 --- a/include/linux/semaphore.h +++ b/include/linux/semaphore.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2008 Intel Corporation * Author: Matthew Wilcox * - * Distributed under the terms of the GNU GPL, version 2 - * * Please see kernel/locking/semaphore.c for documentation of these functions */ #ifndef __LINUX_SEMAPHORE_H -- cgit v1.2.3 From 82664963ee5f03b5c604f4c593a5e43f26193610 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jun 2019 10:08:51 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 437 Based on 1 normalized pattern(s): this file is licensed under gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 22 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.129548190@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/attribute_container.h | 3 +-- include/linux/raid_class.h | 3 +-- include/linux/transport_class.h | 3 +-- 3 files changed, 3 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/attribute_container.h b/include/linux/attribute_container.h index 896c6892f327..d12bb2153cd6 100644 --- a/include/linux/attribute_container.h +++ b/include/linux/attribute_container.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * attribute_container.h - a generic container for all classes * * Copyright (c) 2005 - James Bottomley - * - * This file is licensed under GPLv2 */ #ifndef _ATTRIBUTE_CONTAINER_H_ diff --git a/include/linux/raid_class.h b/include/linux/raid_class.h index ec8655514283..5cdfcb873a8f 100644 --- a/include/linux/raid_class.h +++ b/include/linux/raid_class.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * raid_class.h - a generic raid visualisation class * * Copyright (c) 2005 - James Bottomley - * - * This file is licensed under GPLv2 */ #include diff --git a/include/linux/transport_class.h b/include/linux/transport_class.h index 11087cdd4ad3..a9c59761927b 100644 --- a/include/linux/transport_class.h +++ b/include/linux/transport_class.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * transport_class.h - a generic container for all transport classes * * Copyright (c) 2005 - James Bottomley - * - * This file is licensed under GPLv2 */ #ifndef _TRANSPORT_CLASS_H_ -- cgit v1.2.3 From 3287e96af0d8b964639f15a6bd1724179db5c2c2 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jun 2019 10:08:54 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440 Based on 1 normalized pattern(s): this software is available under the terms of the gnu general public license gpl version 2 available from the file copying in the main directory of this source tree extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 35 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.411886531@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/qed/fcoe_common.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/qed/fcoe_common.h b/include/linux/qed/fcoe_common.h index 22077c586853..98cfc195abe2 100644 --- a/include/linux/qed/fcoe_common.h +++ b/include/linux/qed/fcoe_common.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* QLogic qed NIC Driver * Copyright (c) 2015 QLogic Corporation - * - * This software is available under the terms of the GNU General Public License - * (GPL) Version 2, available from the file COPYING in the main directory of - * this source tree. */ #ifndef __FCOE_COMMON__ -- cgit v1.2.3 From b886d83c5b621abc84ff9616f14c529be3f6b147 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jun 2019 10:08:55 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 315 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Armijn Hemel Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/async.h | 6 +----- include/linux/digsig.h | 6 +----- include/linux/hwmon.h | 4 +--- include/linux/ima.h | 5 +---- include/linux/integrity.h | 5 +---- include/linux/ipack.h | 5 +---- include/linux/leds-pca9532.h | 6 +----- include/linux/mcb.h | 5 +---- include/linux/platform_data/mmc-esdhc-imx.h | 6 +----- include/linux/platform_data/spi-nuc900.h | 6 +----- include/linux/rodata_test.h | 6 +----- include/linux/tpm.h | 7 +------ 12 files changed, 12 insertions(+), 55 deletions(-) (limited to 'include/linux') diff --git a/include/linux/async.h b/include/linux/async.h index f81d6dbffe68..0a17cd27f348 100644 --- a/include/linux/async.h +++ b/include/linux/async.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * async.h: Asynchronous function calls for boot performance * * (C) Copyright 2009 Intel Corporation * Author: Arjan van de Ven - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. */ #ifndef __ASYNC_H__ #define __ASYNC_H__ diff --git a/include/linux/digsig.h b/include/linux/digsig.h index 6f85a070bb45..594fc66a395a 100644 --- a/include/linux/digsig.h +++ b/include/linux/digsig.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2011 Nokia Corporation * Copyright (C) 2011 Intel Corporation @@ -5,11 +6,6 @@ * Author: * Dmitry Kasatkin * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, version 2 of the License. - * */ #ifndef _DIGSIG_H diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h index 2b949fa501e1..04c36b7a61dd 100644 --- a/include/linux/hwmon.h +++ b/include/linux/hwmon.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* hwmon.h - part of lm_sensors, Linux kernel modules for hardware monitoring @@ -6,9 +7,6 @@ Copyright (C) 2005 Mark M. Hoffman - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; version 2 of the License. */ #ifndef _HWMON_H_ diff --git a/include/linux/ima.h b/include/linux/ima.h index fd9f7cf4cdf5..00036d2f57c3 100644 --- a/include/linux/ima.h +++ b/include/linux/ima.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2008 IBM Corporation * Author: Mimi Zohar - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, version 2 of the License. */ #ifndef _LINUX_IMA_H diff --git a/include/linux/integrity.h b/include/linux/integrity.h index 54c853ec2fd1..2271939c5c31 100644 --- a/include/linux/integrity.h +++ b/include/linux/integrity.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2009 IBM Corporation * Author: Mimi Zohar - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, version 2 of the License. */ #ifndef _LINUX_INTEGRITY_H diff --git a/include/linux/ipack.h b/include/linux/ipack.h index 8bddc3fbdddf..2c6936b8371f 100644 --- a/include/linux/ipack.h +++ b/include/linux/ipack.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Industry-pack bus. * * Copyright (C) 2011-2012 CERN (www.cern.ch) * Author: Samuel Iglesias Gonsalvez - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; version 2 of the License. */ #include diff --git a/include/linux/leds-pca9532.h b/include/linux/leds-pca9532.h index 5e240b2b4d58..f4796d333974 100644 --- a/include/linux/leds-pca9532.h +++ b/include/linux/leds-pca9532.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * pca9532.h - platform data structure for pca9532 led controller * * Copyright (C) 2008 Riku Voipio * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * * Datasheet: http://www.nxp.com/acrobat/datasheets/PCA9532_3.pdf - * */ #ifndef __LINUX_PCA9532_H diff --git a/include/linux/mcb.h b/include/linux/mcb.h index b1a0ad9d23b3..71dd10a3d928 100644 --- a/include/linux/mcb.h +++ b/include/linux/mcb.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MEN Chameleon Bus. * * Copyright (C) 2014 MEN Mikroelektronik GmbH (www.men.de) * Author: Johannes Thumshirn - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; version 2 of the License. */ #ifndef _LINUX_MCB_H #define _LINUX_MCB_H diff --git a/include/linux/platform_data/mmc-esdhc-imx.h b/include/linux/platform_data/mmc-esdhc-imx.h index b606ca4197df..6c006078c8a1 100644 --- a/include/linux/platform_data/mmc-esdhc-imx.h +++ b/include/linux/platform_data/mmc-esdhc-imx.h @@ -1,10 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2010 Wolfram Sang - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. */ #ifndef __ASM_ARCH_IMX_ESDHC_H diff --git a/include/linux/platform_data/spi-nuc900.h b/include/linux/platform_data/spi-nuc900.h index 4b3f46832e19..ca3510877000 100644 --- a/include/linux/platform_data/spi-nuc900.h +++ b/include/linux/platform_data/spi-nuc900.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2009 Nuvoton technology corporation. * * Wan ZongShun - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation;version 2 of the License. - * */ #ifndef __SPI_NUC900_H diff --git a/include/linux/rodata_test.h b/include/linux/rodata_test.h index 84766bcdd01f..635ad4dbd0ae 100644 --- a/include/linux/rodata_test.h +++ b/include/linux/rodata_test.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * rodata_test.h: functional test for mark_rodata_ro function * * (C) Copyright 2008 Intel Corporation * Author: Arjan van de Ven - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. */ #ifndef _RODATA_TEST_H diff --git a/include/linux/tpm.h b/include/linux/tpm.h index 1b5436b213a2..53c0ea9ec9df 100644 --- a/include/linux/tpm.h +++ b/include/linux/tpm.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2004,2007,2008 IBM Corporation * @@ -12,12 +13,6 @@ * * Device driver for TCG/TCPA TPM (trusted platform module). * Specifications at www.trustedcomputinggroup.org - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation, version 2 of the - * License. - * */ #ifndef __LINUX_TPM_H__ #define __LINUX_TPM_H__ -- cgit v1.2.3 From 04dc82e1160ebd9ef0de90874cce1b5a0554deaa Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jun 2019 10:08:59 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445 Based on 1 normalized pattern(s): this program is free software you can distribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 24 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.872212424@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/platform_data/sdhci-pic32.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/sdhci-pic32.h b/include/linux/platform_data/sdhci-pic32.h index 7e0efe64c8c5..8a53fd34daf7 100644 --- a/include/linux/platform_data/sdhci-pic32.h +++ b/include/linux/platform_data/sdhci-pic32.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Purna Chandra Mandal, purna.mandal@microchip.com * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. */ #ifndef __PIC32_SDHCI_PDATA_H__ #define __PIC32_SDHCI_PDATA_H__ -- cgit v1.2.3 From 3c910ecbdda4227abd145967774f92b1a3341493 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jun 2019 10:09:00 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 30 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.962665879@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/firmware/meson/meson_sm.h | 8 +------- include/linux/mfd/rn5t618.h | 8 +------- 2 files changed, 2 insertions(+), 14 deletions(-) (limited to 'include/linux') diff --git a/include/linux/firmware/meson/meson_sm.h b/include/linux/firmware/meson/meson_sm.h index f98c20dd266e..7613bf7c9442 100644 --- a/include/linux/firmware/meson/meson_sm.h +++ b/include/linux/firmware/meson/meson_sm.h @@ -1,13 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2016 Endless Mobile, Inc. * Author: Carlo Caione - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . */ #ifndef _MESON_SM_FW_H_ diff --git a/include/linux/mfd/rn5t618.h b/include/linux/mfd/rn5t618.h index d61bc58aba8a..d62ef48060b5 100644 --- a/include/linux/mfd/rn5t618.h +++ b/include/linux/mfd/rn5t618.h @@ -1,14 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MFD core driver for Ricoh RN5T618 PMIC * * Copyright (C) 2014 Beniamino Galvani - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . */ #ifndef __LINUX_MFD_RN5T618_H -- cgit v1.2.3 From d925da5c7b09a27b7b775647925207a383f6524e Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jun 2019 10:09:04 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 450 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published bythe free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 5 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190116.345887520@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mfd/rt5033-private.h | 5 +---- include/linux/mfd/rt5033.h | 5 +---- 2 files changed, 2 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/rt5033-private.h b/include/linux/mfd/rt5033-private.h index 1b63fc2f42d1..f812105c538c 100644 --- a/include/linux/mfd/rt5033-private.h +++ b/include/linux/mfd/rt5033-private.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MFD core driver for Richtek RT5033 * * Copyright (C) 2014 Samsung Electronics, Co., Ltd. * Author: Beomho Seo - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published bythe Free Software Foundation. */ #ifndef __RT5033_PRIVATE_H__ diff --git a/include/linux/mfd/rt5033.h b/include/linux/mfd/rt5033.h index 6cff5cf458d2..3c23b6220c04 100644 --- a/include/linux/mfd/rt5033.h +++ b/include/linux/mfd/rt5033.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MFD core driver for the RT5033 * * Copyright (C) 2014 Samsung Electronics * Author: Beomho Seo - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published bythe Free Software Foundation. */ #ifndef __RT5033_H__ -- cgit v1.2.3 From 983695fa676568fc0fe5ddd995c7267aabc24632 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Fri, 7 Jun 2019 01:48:57 +0200 Subject: bpf: fix unconnected udp hooks Intention of cgroup bind/connect/sendmsg BPF hooks is to act transparently to applications as also stated in original motivation in 7828f20e3779 ("Merge branch 'bpf-cgroup-bind-connect'"). When recently integrating the latter two hooks into Cilium to enable host based load-balancing with Kubernetes, I ran into the issue that pods couldn't start up as DNS got broken. Kubernetes typically sets up DNS as a service and is thus subject to load-balancing. Upon further debugging, it turns out that the cgroupv2 sendmsg BPF hooks API is currently insufficient and thus not usable as-is for standard applications shipped with most distros. To break down the issue we ran into with a simple example: # cat /etc/resolv.conf nameserver 147.75.207.207 nameserver 147.75.207.208 For the purpose of a simple test, we set up above IPs as service IPs and transparently redirect traffic to a different DNS backend server for that node: # cilium service list ID Frontend Backend 1 147.75.207.207:53 1 => 8.8.8.8:53 2 147.75.207.208:53 1 => 8.8.8.8:53 The attached BPF program is basically selecting one of the backends if the service IP/port matches on the cgroup hook. DNS breaks here, because the hooks are not transparent enough to applications which have built-in msg_name address checks: # nslookup 1.1.1.1 ;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.207#53 ;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.208#53 ;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.207#53 [...] ;; connection timed out; no servers could be reached # dig 1.1.1.1 ;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.207#53 ;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.208#53 ;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.207#53 [...] ; <<>> DiG 9.11.3-1ubuntu1.7-Ubuntu <<>> 1.1.1.1 ;; global options: +cmd ;; connection timed out; no servers could be reached For comparison, if none of the service IPs is used, and we tell nslookup to use 8.8.8.8 directly it works just fine, of course: # nslookup 1.1.1.1 8.8.8.8 1.1.1.1.in-addr.arpa name = one.one.one.one. In order to fix this and thus act more transparent to the application, this needs reverse translation on recvmsg() side. A minimal fix for this API is to add similar recvmsg() hooks behind the BPF cgroups static key such that the program can track state and replace the current sockaddr_in{,6} with the original service IP. From BPF side, this basically tracks the service tuple plus socket cookie in an LRU map where the reverse NAT can then be retrieved via map value as one example. Side-note: the BPF cgroups static key should be converted to a per-hook static key in future. Same example after this fix: # cilium service list ID Frontend Backend 1 147.75.207.207:53 1 => 8.8.8.8:53 2 147.75.207.208:53 1 => 8.8.8.8:53 Lookups work fine now: # nslookup 1.1.1.1 1.1.1.1.in-addr.arpa name = one.one.one.one. Authoritative answers can be found from: # dig 1.1.1.1 ; <<>> DiG 9.11.3-1ubuntu1.7-Ubuntu <<>> 1.1.1.1 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 51550 ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;1.1.1.1. IN A ;; AUTHORITY SECTION: . 23426 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2019052001 1800 900 604800 86400 ;; Query time: 17 msec ;; SERVER: 147.75.207.207#53(147.75.207.207) ;; WHEN: Tue May 21 12:59:38 UTC 2019 ;; MSG SIZE rcvd: 111 And from an actual packet level it shows that we're using the back end server when talking via 147.75.207.20{7,8} front end: # tcpdump -i any udp [...] 12:59:52.698732 IP foo.42011 > google-public-dns-a.google.com.domain: 18803+ PTR? 1.1.1.1.in-addr.arpa. (38) 12:59:52.698735 IP foo.42011 > google-public-dns-a.google.com.domain: 18803+ PTR? 1.1.1.1.in-addr.arpa. (38) 12:59:52.701208 IP google-public-dns-a.google.com.domain > foo.42011: 18803 1/0/0 PTR one.one.one.one. (67) 12:59:52.701208 IP google-public-dns-a.google.com.domain > foo.42011: 18803 1/0/0 PTR one.one.one.one. (67) [...] In order to be flexible and to have same semantics as in sendmsg BPF programs, we only allow return codes in [1,1] range. In the sendmsg case the program is called if msg->msg_name is present which can be the case in both, connected and unconnected UDP. The former only relies on the sockaddr_in{,6} passed via connect(2) if passed msg->msg_name was NULL. Therefore, on recvmsg side, we act in similar way to call into the BPF program whenever a non-NULL msg->msg_name was passed independent of sk->sk_state being TCP_ESTABLISHED or not. Note that for TCP case, the msg->msg_name is ignored in the regular recvmsg path and therefore not relevant. For the case of ip{,v6}_recv_error() paths, picked up via MSG_ERRQUEUE, the hook is not called. This is intentional as it aligns with the same semantics as in case of TCP cgroup BPF hooks right now. This might be better addressed in future through a different bpf_attach_type such that this case can be distinguished from the regular recvmsg paths, for example. Fixes: 1cedee13d25a ("bpf: Hooks for sys_sendmsg") Signed-off-by: Daniel Borkmann Acked-by: Andrey Ignatov Acked-by: Martin KaFai Lau Acked-by: Martynas Pumputis Signed-off-by: Alexei Starovoitov --- include/linux/bpf-cgroup.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bpf-cgroup.h b/include/linux/bpf-cgroup.h index cb3c6b3b89c8..a7f7a98ec39d 100644 --- a/include/linux/bpf-cgroup.h +++ b/include/linux/bpf-cgroup.h @@ -238,6 +238,12 @@ int bpf_percpu_cgroup_storage_update(struct bpf_map *map, void *key, #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) \ BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_UDP6_SENDMSG, t_ctx) +#define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr) \ + BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_UDP4_RECVMSG, NULL) + +#define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr) \ + BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_UDP6_RECVMSG, NULL) + #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) \ ({ \ int __ret = 0; \ @@ -339,6 +345,8 @@ static inline int bpf_percpu_cgroup_storage_update(struct bpf_map *map, #define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr) ({ 0; }) #define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; }) #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; }) +#define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr) ({ 0; }) +#define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr) ({ 0; }) #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) ({ 0; }) #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(type,major,minor,access) ({ 0; }) #define BPF_CGROUP_RUN_PROG_SYSCTL(head,table,write,buf,count,pos,nbuf) ({ 0; }) -- cgit v1.2.3 From 54b7b868e826b294687c439b68ec55fe20cafe5b Mon Sep 17 00:00:00 2001 From: Angelo Ruocco Date: Tue, 21 May 2019 10:01:54 +0200 Subject: cgroup: let a symlink too be created with a cftype file This commit enables a cftype to have a symlink (of any name) that points to the file associated with the cftype. Signed-off-by: Angelo Ruocco Signed-off-by: Paolo Valente Signed-off-by: Jens Axboe --- include/linux/cgroup-defs.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index 11e215d7937e..d71b079bb021 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -106,6 +106,8 @@ enum { CFTYPE_WORLD_WRITABLE = (1 << 4), /* (DON'T USE FOR NEW FILES) S_IWUGO */ CFTYPE_DEBUG = (1 << 5), /* create when cgroup_debug */ + CFTYPE_SYMLINKED = (1 << 6), /* pointed to by symlink too */ + /* internal flags, do not use outside cgroup core proper */ __CFTYPE_ONLY_ON_DFL = (1 << 16), /* only on default hierarchy */ __CFTYPE_NOT_ON_DFL = (1 << 17), /* not on default hierarchy */ @@ -543,6 +545,7 @@ struct cftype { * end of cftype array. */ char name[MAX_CFTYPE_NAME]; + char link_name[MAX_CFTYPE_NAME]; unsigned long private; /* -- cgit v1.2.3 From d93445225cd3c8eb0bf1350c04875576428b45b4 Mon Sep 17 00:00:00 2001 From: Andrey Konovalov Date: Tue, 4 Jun 2019 14:04:47 +0200 Subject: uaccess: add noop untagged_addr definition Architectures that support memory tagging have a need to perform untagging (stripping the tag) in various parts of the kernel. This patch adds an untagged_addr() macro, which is defined as noop for architectures that do not support memory tagging. The oncoming patch series will define it at least for sparc64 and arm64. Acked-by: Catalin Marinas Reviewed-by: Khalid Aziz Signed-off-by: Andrey Konovalov Signed-off-by: Linus Torvalds --- include/linux/mm.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mm.h b/include/linux/mm.h index 0e8834ac32b7..dd0b5f4e1e45 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -99,6 +99,17 @@ extern int mmap_rnd_compat_bits __read_mostly; #include #include +/* + * Architectures that support memory tagging (assigning tags to memory regions, + * embedding these tags into addresses that point to these memory regions, and + * checking that the memory and the pointer tags match on memory accesses) + * redefine this macro to strip tags from pointers. + * It's defined as noop for arcitectures that don't support memory tagging. + */ +#ifndef untagged_addr +#define untagged_addr(addr) (addr) +#endif + #ifndef __pa_symbol #define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0)) #endif -- cgit v1.2.3 From cf8929885de318c0bf73438c9e5dde59d6536f7c Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 10 Jun 2019 03:35:41 -0600 Subject: cgroup/bfq: revert bfq.weight symlink change There's some discussion on how to do this the best, and Tejun prefers that BFQ just create the file itself instead of having cgroups support a symlink feature. Hence revert commit 54b7b868e826 and 19e9da9e86c4 for 5.2, and this can be done properly for 5.3. Signed-off-by: Jens Axboe --- include/linux/cgroup-defs.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index d71b079bb021..11e215d7937e 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -106,8 +106,6 @@ enum { CFTYPE_WORLD_WRITABLE = (1 << 4), /* (DON'T USE FOR NEW FILES) S_IWUGO */ CFTYPE_DEBUG = (1 << 5), /* create when cgroup_debug */ - CFTYPE_SYMLINKED = (1 << 6), /* pointed to by symlink too */ - /* internal flags, do not use outside cgroup core proper */ __CFTYPE_ONLY_ON_DFL = (1 << 16), /* only on default hierarchy */ __CFTYPE_NOT_ON_DFL = (1 << 17), /* not on default hierarchy */ @@ -545,7 +543,6 @@ struct cftype { * end of cftype array. */ char name[MAX_CFTYPE_NAME]; - char link_name[MAX_CFTYPE_NAME]; unsigned long private; /* -- cgit v1.2.3 From 815744d75152078cde5391fc1e3c2d4424323fb6 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Thu, 13 Jun 2019 15:55:46 -0700 Subject: mm: memcontrol: don't batch updates of local VM stats and events The kernel test robot noticed a 26% will-it-scale pagefault regression from commit 42a300353577 ("mm: memcontrol: fix recursive statistics correctness & scalabilty"). This appears to be caused by bouncing the additional cachelines from the new hierarchical statistics counters. We can fix this by getting rid of the batched local counters instead. Originally, there were *only* group-local counters, and they were fully maintained per cpu. A reader of a stats file high up in the cgroup tree would have to walk the entire subtree and collect each level's per-cpu counters to get the recursive view. This was prohibitively expensive, and so we switched to per-cpu batched updates of the local counters during a983b5ebee57 ("mm: memcontrol: fix excessive complexity in memory.stat reporting"), reducing the complexity from nr_subgroups * nr_cpus to nr_subgroups. With growing machines and cgroup trees, the tree walk itself became too expensive for monitoring top-level groups, and this is when the culprit patch added hierarchy counters on each cgroup level. When the per-cpu batch size would be reached, both the local and the hierarchy counters would get batch-updated from the per-cpu delta simultaneously. This makes local and hierarchical counter reads blazingly fast, but it unfortunately makes the write-side too cache line intense. Since local counter reads were never a problem - we only centralized them to accelerate the hierarchy walk - and use of the local counters are becoming rarer due to replacement with hierarchical views (ongoing rework in the page reclaim and workingset code), we can make those local counters unbatched per-cpu counters again. The scheme will then be as such: when a memcg statistic changes, the writer will: - update the local counter (per-cpu) - update the batch counter (per-cpu). If the batch is full: - spill the batch into the group's atomic_t - spill the batch into all ancestors' atomic_ts - empty out the batch counter (per-cpu) when a local memcg counter is read, the reader will: - collect the local counter from all cpus when a hiearchy memcg counter is read, the reader will: - read the atomic_t We might be able to simplify this further and make the recursive counters unbatched per-cpu counters as well (batch upward propagation, but leave per-cpu collection to the readers), but that will require a more in-depth analysis and testing of all the callsites. Deal with the immediate regression for now. Link: http://lkml.kernel.org/r/20190521151647.GB2870@cmpxchg.org Fixes: 42a300353577 ("mm: memcontrol: fix recursive statistics correctness & scalabilty") Signed-off-by: Johannes Weiner Reported-by: kernel test robot Tested-by: kernel test robot Cc: Michal Hocko Cc: Shakeel Butt Cc: Roman Gushchin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index edf9e8f32d70..1dcb763bb610 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -117,9 +117,12 @@ struct memcg_shrinker_map { struct mem_cgroup_per_node { struct lruvec lruvec; + /* Legacy local VM stats */ + struct lruvec_stat __percpu *lruvec_stat_local; + + /* Subtree VM stats (batched updates) */ struct lruvec_stat __percpu *lruvec_stat_cpu; atomic_long_t lruvec_stat[NR_VM_NODE_STAT_ITEMS]; - atomic_long_t lruvec_stat_local[NR_VM_NODE_STAT_ITEMS]; unsigned long lru_zone_size[MAX_NR_ZONES][NR_LRU_LISTS]; @@ -265,17 +268,18 @@ struct mem_cgroup { atomic_t moving_account; struct task_struct *move_lock_task; - /* memory.stat */ + /* Legacy local VM stats and events */ + struct memcg_vmstats_percpu __percpu *vmstats_local; + + /* Subtree VM stats and events (batched updates) */ struct memcg_vmstats_percpu __percpu *vmstats_percpu; MEMCG_PADDING(_pad2_); atomic_long_t vmstats[MEMCG_NR_STAT]; - atomic_long_t vmstats_local[MEMCG_NR_STAT]; - atomic_long_t vmevents[NR_VM_EVENT_ITEMS]; - atomic_long_t vmevents_local[NR_VM_EVENT_ITEMS]; + /* memory.events */ atomic_long_t memory_events[MEMCG_NR_MEMORY_EVENTS]; unsigned long socket_pressure; @@ -567,7 +571,11 @@ static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, int idx) static inline unsigned long memcg_page_state_local(struct mem_cgroup *memcg, int idx) { - long x = atomic_long_read(&memcg->vmstats_local[idx]); + long x = 0; + int cpu; + + for_each_possible_cpu(cpu) + x += per_cpu(memcg->vmstats_local->stat[idx], cpu); #ifdef CONFIG_SMP if (x < 0) x = 0; @@ -641,13 +649,15 @@ static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, enum node_stat_item idx) { struct mem_cgroup_per_node *pn; - long x; + long x = 0; + int cpu; if (mem_cgroup_disabled()) return node_page_state(lruvec_pgdat(lruvec), idx); pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); - x = atomic_long_read(&pn->lruvec_stat_local[idx]); + for_each_possible_cpu(cpu) + x += per_cpu(pn->lruvec_stat_local->count[idx], cpu); #ifdef CONFIG_SMP if (x < 0) x = 0; -- cgit v1.2.3 From 59ea6d06cfa9247b586a695c21f94afa7183af74 Mon Sep 17 00:00:00 2001 From: Andrea Arcangeli Date: Thu, 13 Jun 2019 15:56:11 -0700 Subject: coredump: fix race condition between collapse_huge_page() and core dumping When fixing the race conditions between the coredump and the mmap_sem holders outside the context of the process, we focused on mmget_not_zero()/get_task_mm() callers in 04f5866e41fb70 ("coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping"), but those aren't the only cases where the mmap_sem can be taken outside of the context of the process as Michal Hocko noticed while backporting that commit to older -stable kernels. If mmgrab() is called in the context of the process, but then the mm_count reference is transferred outside the context of the process, that can also be a problem if the mmap_sem has to be taken for writing through that mm_count reference. khugepaged registration calls mmgrab() in the context of the process, but the mmap_sem for writing is taken later in the context of the khugepaged kernel thread. collapse_huge_page() after taking the mmap_sem for writing doesn't modify any vma, so it's not obvious that it could cause a problem to the coredump, but it happens to modify the pmd in a way that breaks an invariant that pmd_trans_huge_lock() relies upon. collapse_huge_page() needs the mmap_sem for writing just to block concurrent page faults that call pmd_trans_huge_lock(). Specifically the invariant that "!pmd_trans_huge()" cannot become a "pmd_trans_huge()" doesn't hold while collapse_huge_page() runs. The coredump will call __get_user_pages() without mmap_sem for reading, which eventually can invoke a lockless page fault which will need a functional pmd_trans_huge_lock(). So collapse_huge_page() needs to use mmget_still_valid() to check it's not running concurrently with the coredump... as long as the coredump can invoke page faults without holding the mmap_sem for reading. This has "Fixes: khugepaged" to facilitate backporting, but in my view it's more a bug in the coredump code that will eventually have to be rewritten to stop invoking page faults without the mmap_sem for reading. So the long term plan is still to drop all mmget_still_valid(). Link: http://lkml.kernel.org/r/20190607161558.32104-1-aarcange@redhat.com Fixes: ba76149f47d8 ("thp: khugepaged") Signed-off-by: Andrea Arcangeli Reported-by: Michal Hocko Acked-by: Michal Hocko Acked-by: Kirill A. Shutemov Cc: Oleg Nesterov Cc: Jann Horn Cc: Hugh Dickins Cc: Mike Rapoport Cc: Mike Kravetz Cc: Peter Xu Cc: Jason Gunthorpe Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sched/mm.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h index a3fda9f024c3..4a7944078cc3 100644 --- a/include/linux/sched/mm.h +++ b/include/linux/sched/mm.h @@ -54,6 +54,10 @@ static inline void mmdrop(struct mm_struct *mm) * followed by taking the mmap_sem for writing before modifying the * vmas or anything the coredump pretends not to change from under it. * + * It also has to be called when mmgrab() is used in the context of + * the process, but then the mm_count refcount is transferred outside + * the context of the process to run down_write() on that pinned mm. + * * NOTE: find_extend_vma() called from GUP context is the only place * that can modify the "mm" (notably the vm_start/end) under mmap_sem * for reading and outside the context of the process, so it is also -- cgit v1.2.3 From 2374b682255184d7ef75fcb507ce5af4995ead32 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 13 Jun 2019 15:56:18 -0700 Subject: drivers/base/devres: introduce devm_release_action() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Patch series "mm/devm_memremap_pages: Fix page release race", v2. Logan audited the devm_memremap_pages() shutdown path and noticed that it was possible to proceed to arch_remove_memory() before all potential page references have been reaped. Introduce a new ->cleanup() callback to do the work of waiting for any straggling page references and then perform the percpu_ref_exit() in devm_memremap_pages_release() context. For p2pdma this involves some deeper reworks to reference count resources on a per-instance basis rather than a per pci-device basis. A modified genalloc api is introduced to convey a driver-private pointer through gen_pool_{alloc,free}() interfaces. Also, a devm_memunmap_pages() api is introduced since p2pdma does not auto-release resources on a setup failure. The dax and pmem changes pass the nvdimm unit tests, and the p2pdma changes should now pass testing with the pci_p2pdma_release() fix. Jrme, how does this look for HMM? This patch (of 6): The devm_add_action() facility allows a resource allocation routine to add custom devm semantics. One such user is devm_memremap_pages(). There is now a need to manually trigger devm_memremap_pages_release(). Introduce devm_release_action() so the release action can be triggered via a new devm_memunmap_pages() api in a follow-on change. Link: http://lkml.kernel.org/r/155727336530.292046.2926860263201336366.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams Reviewed-by: Ira Weiny Reviewed-by: Logan Gunthorpe Cc: Bjorn Helgaas Cc: Christoph Hellwig Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Cc: "Jérôme Glisse" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/device.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/device.h b/include/linux/device.h index e85264fb6616..848fc71c6ba6 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -713,6 +713,7 @@ void __iomem *devm_of_iomap(struct device *dev, /* allows to add/remove a custom action to devres stack */ int devm_add_action(struct device *dev, void (*action)(void *), void *data); void devm_remove_action(struct device *dev, void (*action)(void *), void *data); +void devm_release_action(struct device *dev, void (*action)(void *), void *data); static inline int devm_add_action_or_reset(struct device *dev, void (*action)(void *), void *data) -- cgit v1.2.3 From 2e3f139e8ecebf177fe01299285a56855e93fb84 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 13 Jun 2019 15:56:21 -0700 Subject: mm/devm_memremap_pages: introduce devm_memunmap_pages MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use the new devm_release_action() facility to allow devm_memremap_pages_release() to be manually triggered. Link: http://lkml.kernel.org/r/155727337088.292046.5774214552136776763.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams Reviewed-by: Ira Weiny Reviewed-by: Logan Gunthorpe Cc: Bjorn Helgaas Cc: Christoph Hellwig Cc: Greg Kroah-Hartman Cc: "Jérôme Glisse" Cc: "Rafael J. Wysocki" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memremap.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/memremap.h b/include/linux/memremap.h index f0628660d541..7601ee314c4a 100644 --- a/include/linux/memremap.h +++ b/include/linux/memremap.h @@ -100,6 +100,7 @@ struct dev_pagemap { #ifdef CONFIG_ZONE_DEVICE void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap); +void devm_memunmap_pages(struct device *dev, struct dev_pagemap *pgmap); struct dev_pagemap *get_dev_pagemap(unsigned long pfn, struct dev_pagemap *pgmap); @@ -118,6 +119,11 @@ static inline void *devm_memremap_pages(struct device *dev, return ERR_PTR(-ENXIO); } +static inline void devm_memunmap_pages(struct device *dev, + struct dev_pagemap *pgmap) +{ +} + static inline struct dev_pagemap *get_dev_pagemap(unsigned long pfn, struct dev_pagemap *pgmap) { -- cgit v1.2.3 From 795ee30648c708502da9df637f83c33361d68dcc Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 13 Jun 2019 15:56:27 -0700 Subject: lib/genalloc: introduce chunk owners MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The p2pdma facility enables a provider to publish a pool of dma addresses for a consumer to allocate. A genpool is used internally by p2pdma to collect dma resources, 'chunks', to be handed out to consumers. Whenever a consumer allocates a resource it needs to pin the 'struct dev_pagemap' instance that backs the chunk selected by pci_alloc_p2pmem(). Currently that reference is taken globally on the entire provider device. That sets up a lifetime mismatch whereby the p2pdma core needs to maintain hacks to make sure the percpu_ref is not released twice. This lifetime mismatch also stands in the way of a fix to devm_memremap_pages() whereby devm_memremap_pages_release() must wait for the percpu_ref ->release() callback to complete before it can proceed to teardown pages. So, towards fixing this situation, introduce the ability to store a 'chunk owner' at gen_pool_add() time, and a facility to retrieve the owner at gen_pool_{alloc,free}() time. For p2pdma this will be used to store and recall individual dev_pagemap reference counter instances per-chunk. Link: http://lkml.kernel.org/r/155727338118.292046.13407378933221579644.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams Reviewed-by: Ira Weiny Reviewed-by: Logan Gunthorpe Cc: Bjorn Helgaas Cc: "Jérôme Glisse" Cc: Christoph Hellwig Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/genalloc.h | 55 ++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 49 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h index dd0a452373e7..a337313e064f 100644 --- a/include/linux/genalloc.h +++ b/include/linux/genalloc.h @@ -75,6 +75,7 @@ struct gen_pool_chunk { struct list_head next_chunk; /* next chunk in pool */ atomic_long_t avail; phys_addr_t phys_addr; /* physical starting address of memory chunk */ + void *owner; /* private data to retrieve at alloc time */ unsigned long start_addr; /* start address of memory chunk */ unsigned long end_addr; /* end address of memory chunk (inclusive) */ unsigned long bits[0]; /* bitmap for allocating memory chunk */ @@ -96,8 +97,15 @@ struct genpool_data_fixed { extern struct gen_pool *gen_pool_create(int, int); extern phys_addr_t gen_pool_virt_to_phys(struct gen_pool *pool, unsigned long); -extern int gen_pool_add_virt(struct gen_pool *, unsigned long, phys_addr_t, - size_t, int); +extern int gen_pool_add_owner(struct gen_pool *, unsigned long, phys_addr_t, + size_t, int, void *); + +static inline int gen_pool_add_virt(struct gen_pool *pool, unsigned long addr, + phys_addr_t phys, size_t size, int nid) +{ + return gen_pool_add_owner(pool, addr, phys, size, nid, NULL); +} + /** * gen_pool_add - add a new chunk of special memory to the pool * @pool: pool to add new memory chunk to @@ -116,12 +124,47 @@ static inline int gen_pool_add(struct gen_pool *pool, unsigned long addr, return gen_pool_add_virt(pool, addr, -1, size, nid); } extern void gen_pool_destroy(struct gen_pool *); -extern unsigned long gen_pool_alloc(struct gen_pool *, size_t); -extern unsigned long gen_pool_alloc_algo(struct gen_pool *, size_t, - genpool_algo_t algo, void *data); +unsigned long gen_pool_alloc_algo_owner(struct gen_pool *pool, size_t size, + genpool_algo_t algo, void *data, void **owner); + +static inline unsigned long gen_pool_alloc_owner(struct gen_pool *pool, + size_t size, void **owner) +{ + return gen_pool_alloc_algo_owner(pool, size, pool->algo, pool->data, + owner); +} + +static inline unsigned long gen_pool_alloc_algo(struct gen_pool *pool, + size_t size, genpool_algo_t algo, void *data) +{ + return gen_pool_alloc_algo_owner(pool, size, algo, data, NULL); +} + +/** + * gen_pool_alloc - allocate special memory from the pool + * @pool: pool to allocate from + * @size: number of bytes to allocate from the pool + * + * Allocate the requested number of bytes from the specified pool. + * Uses the pool allocation function (with first-fit algorithm by default). + * Can not be used in NMI handler on architectures without + * NMI-safe cmpxchg implementation. + */ +static inline unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size) +{ + return gen_pool_alloc_algo(pool, size, pool->algo, pool->data); +} + extern void *gen_pool_dma_alloc(struct gen_pool *pool, size_t size, dma_addr_t *dma); -extern void gen_pool_free(struct gen_pool *, unsigned long, size_t); +extern void gen_pool_free_owner(struct gen_pool *pool, unsigned long addr, + size_t size, void **owner); +static inline void gen_pool_free(struct gen_pool *pool, unsigned long addr, + size_t size) +{ + gen_pool_free_owner(pool, addr, size, NULL); +} + extern void gen_pool_for_each_chunk(struct gen_pool *, void (*)(struct gen_pool *, struct gen_pool_chunk *, void *), void *); extern size_t gen_pool_avail(struct gen_pool *); -- cgit v1.2.3 From 50f44ee7248ad2f7984ef081974a6ecd09724b3e Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 13 Jun 2019 15:56:33 -0700 Subject: mm/devm_memremap_pages: fix final page put race MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Logan noticed that devm_memremap_pages_release() kills the percpu_ref drops all the page references that were acquired at init and then immediately proceeds to unplug, arch_remove_memory(), the backing pages for the pagemap. If for some reason device shutdown actually collides with a busy / elevated-ref-count page then arch_remove_memory() should be deferred until after that reference is dropped. As it stands the "wait for last page ref drop" happens *after* devm_memremap_pages_release() returns, which is obviously too late and can lead to crashes. Fix this situation by assigning the responsibility to wait for the percpu_ref to go idle to devm_memremap_pages() with a new ->cleanup() callback. Implement the new cleanup callback for all devm_memremap_pages() users: pmem, devdax, hmm, and p2pdma. Link: http://lkml.kernel.org/r/155727339156.292046.5432007428235387859.stgit@dwillia2-desk3.amr.corp.intel.com Fixes: 41e94a851304 ("add devm_memremap_pages") Signed-off-by: Dan Williams Reported-by: Logan Gunthorpe Reviewed-by: Ira Weiny Reviewed-by: Logan Gunthorpe Cc: Bjorn Helgaas Cc: "Jérôme Glisse" Cc: Christoph Hellwig Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memremap.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/memremap.h b/include/linux/memremap.h index 7601ee314c4a..1732dea030b2 100644 --- a/include/linux/memremap.h +++ b/include/linux/memremap.h @@ -81,6 +81,7 @@ typedef void (*dev_page_free_t)(struct page *page, void *data); * @res: physical address range covered by @ref * @ref: reference count that pins the devm_memremap_pages() mapping * @kill: callback to transition @ref to the dead state + * @cleanup: callback to wait for @ref to be idle and reap it * @dev: host device of the mapping for debug * @data: private data pointer for page_free() * @type: memory type: see MEMORY_* in memory_hotplug.h @@ -92,6 +93,7 @@ struct dev_pagemap { struct resource res; struct percpu_ref *ref; void (*kill)(struct percpu_ref *ref); + void (*cleanup)(struct percpu_ref *ref); struct device *dev; void *data; enum memory_type type; -- cgit v1.2.3 From 4add700968c7761acba88e70a0aa3f44e5ad359d Mon Sep 17 00:00:00 2001 From: Russell King - ARM Linux admin Date: Fri, 14 Jun 2019 11:37:49 +0100 Subject: net: phylink: further mac_config documentation improvements While reviewing the DPAA2 work, it has become apparent that we need better documentation about which members of the phylink link state structure are valid in the mac_config call. Improve this documentation. Signed-off-by: Russell King Signed-off-by: David S. Miller --- include/linux/phylink.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/phylink.h b/include/linux/phylink.h index 6411c624f63a..2d2e55dfea94 100644 --- a/include/linux/phylink.h +++ b/include/linux/phylink.h @@ -123,11 +123,20 @@ int mac_link_state(struct net_device *ndev, * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND. * @state: a pointer to a &struct phylink_link_state. * + * Note - not all members of @state are valid. In particular, + * @state->lp_advertising, @state->link, @state->an_complete are never + * guaranteed to be correct, and so any mac_config() implementation must + * never reference these fields. + * * The action performed depends on the currently selected mode: * * %MLO_AN_FIXED, %MLO_AN_PHY: * Configure the specified @state->speed, @state->duplex and - * @state->pause (%MLO_PAUSE_TX / %MLO_PAUSE_RX) mode. + * @state->pause (%MLO_PAUSE_TX / %MLO_PAUSE_RX) modes over a link + * specified by @state->interface. @state->advertising may be used, + * but is not required. Other members of @state must be ignored. + * + * Valid state members: interface, speed, duplex, pause, advertising. * * %MLO_AN_INBAND: * place the link in an inband negotiation mode (such as 802.3z @@ -150,6 +159,8 @@ int mac_link_state(struct net_device *ndev, * responsible for reading the configuration word and configuring * itself accordingly. * + * Valid state members: interface, an_enabled, pause, advertising. + * * Implementations are expected to update the MAC to reflect the * requested settings - i.o.w., if nothing has changed between two * calls, no action is expected. If only flow control settings have -- cgit v1.2.3 From a8e11e5c5611a9f70470aebeb2c1dd6132f609d7 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 14 Jun 2019 16:22:18 -0700 Subject: sysctl: define proc_do_static_key() Convert proc_dointvec_minmax_bpf_stats() into a more generic helper, since we are going to use jump labels more often. Note that sysctl_bpf_stats_enabled is removed, since it is no longer needed/used. Signed-off-by: Eric Dumazet Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller --- include/linux/bpf.h | 1 - include/linux/sysctl.h | 3 +++ 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 5df8e9e2a393..b92ef9f73e42 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -600,7 +600,6 @@ void bpf_map_area_free(void *base); void bpf_map_init_from_attr(struct bpf_map *map, union bpf_attr *attr); extern int sysctl_unprivileged_bpf_disabled; -extern int sysctl_bpf_stats_enabled; int bpf_map_new_fd(struct bpf_map *map, int flags); int bpf_prog_new_fd(struct bpf_prog *prog); diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index b769ecfcc3bd..aadd310769d0 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -63,6 +63,9 @@ extern int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int, void __user *, size_t *, loff_t *); extern int proc_do_large_bitmap(struct ctl_table *, int, void __user *, size_t *, loff_t *); +extern int proc_do_static_key(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, + loff_t *ppos); /* * Register a set of sysctl names by calling register_sysctl_table -- cgit v1.2.3 From 78f4e932f7760d965fb1569025d1576ab77557c5 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Thu, 13 Jun 2019 15:49:02 +0200 Subject: x86/microcode, cpuhotplug: Add a microcode loader CPU hotplug callback Adric Blake reported the following warning during suspend-resume: Enabling non-boot CPUs ... x86: Booting SMP configuration: smpboot: Booting Node 0 Processor 1 APIC 0x2 unchecked MSR access error: WRMSR to 0x10f (tried to write 0x0000000000000000) \ at rIP: 0xffffffff8d267924 (native_write_msr+0x4/0x20) Call Trace: intel_set_tfa intel_pmu_cpu_starting ? x86_pmu_dead_cpu x86_pmu_starting_cpu cpuhp_invoke_callback ? _raw_spin_lock_irqsave notify_cpu_starting start_secondary secondary_startup_64 microcode: sig=0x806ea, pf=0x80, revision=0x96 microcode: updated to revision 0xb4, date = 2019-04-01 CPU1 is up The MSR in question is MSR_TFA_RTM_FORCE_ABORT and that MSR is emulated by microcode. The log above shows that the microcode loader callback happens after the PMU restoration, leading to the conjecture that because the microcode hasn't been updated yet, that MSR is not present yet, leading to the #GP. Add a microcode loader-specific hotplug vector which comes before the PERF vectors and thus executes earlier and makes sure the MSR is present. Fixes: 400816f60c54 ("perf/x86/intel: Implement support for TSX Force Abort") Reported-by: Adric Blake Signed-off-by: Borislav Petkov Reviewed-by: Thomas Gleixner Cc: Peter Zijlstra Cc: Cc: x86@kernel.org Link: https://bugzilla.kernel.org/show_bug.cgi?id=203637 --- include/linux/cpuhotplug.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index 6a381594608c..5c6062206760 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -101,6 +101,7 @@ enum cpuhp_state { CPUHP_AP_IRQ_BCM2836_STARTING, CPUHP_AP_IRQ_MIPS_GIC_STARTING, CPUHP_AP_ARM_MVEBU_COHERENCY, + CPUHP_AP_MICROCODE_LOADER, CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING, CPUHP_AP_PERF_X86_STARTING, CPUHP_AP_PERF_X86_AMD_IBS_STARTING, -- cgit v1.2.3 From 3b4929f65b0d8249f19a50245cd88ed1a2f78cff Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 17 May 2019 17:17:22 -0700 Subject: tcp: limit payload size of sacked skbs Jonathan Looney reported that TCP can trigger the following crash in tcp_shifted_skb() : BUG_ON(tcp_skb_pcount(skb) < pcount); This can happen if the remote peer has advertized the smallest MSS that linux TCP accepts : 48 An skb can hold 17 fragments, and each fragment can hold 32KB on x86, or 64KB on PowerPC. This means that the 16bit witdh of TCP_SKB_CB(skb)->tcp_gso_segs can overflow. Note that tcp_sendmsg() builds skbs with less than 64KB of payload, so this problem needs SACK to be enabled. SACK blocks allow TCP to coalesce multiple skbs in the retransmit queue, thus filling the 17 fragments to maximal capacity. CVE-2019-11477 -- u16 overflow of TCP_SKB_CB(skb)->tcp_gso_segs Fixes: 832d11c5cd07 ("tcp: Try to restore large SKBs while SACK processing") Signed-off-by: Eric Dumazet Reported-by: Jonathan Looney Acked-by: Neal Cardwell Reviewed-by: Tyler Hicks Cc: Yuchung Cheng Cc: Bruce Curtis Cc: Jonathan Lemon Signed-off-by: David S. Miller --- include/linux/tcp.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 711361af9ce0..9a478a0cd3a2 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -484,4 +484,8 @@ static inline u16 tcp_mss_clamp(const struct tcp_sock *tp, u16 mss) return (user_mss && user_mss < mss) ? user_mss : mss; } + +int tcp_skb_shift(struct sk_buff *to, struct sk_buff *from, int pcount, + int shiftlen); + #endif /* _LINUX_TCP_H */ -- cgit v1.2.3 From ff896738be381efa6e50ba9a3b6cdc94f69ada42 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 17 Jun 2019 11:14:11 +0200 Subject: block: return from __bio_try_merge_page if merging occured in the same page We currently have an input same_page parameter to __bio_try_merge_page to prohibit merging in the same page. The rationale for that is that some callers need to account for every page added to a bio. Instead of letting these callers call twice into the merge code to account for the new vs existing page cases, just turn the paramter into an output one that returns if a merge in the same page occured and let them act accordingly. Signed-off-by: Christoph Hellwig Reviewed-by: Ming Lei Signed-off-by: Jens Axboe --- include/linux/bio.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/bio.h b/include/linux/bio.h index 0f23b5682640..f87abaa898f0 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -423,7 +423,7 @@ extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int); extern int bio_add_pc_page(struct request_queue *, struct bio *, struct page *, unsigned int, unsigned int); bool __bio_try_merge_page(struct bio *bio, struct page *page, - unsigned int len, unsigned int off, bool same_page); + unsigned int len, unsigned int off, bool *same_page); void __bio_add_page(struct bio *bio, struct page *page, unsigned int len, unsigned int off); int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter); -- cgit v1.2.3 From 0a55f4ab9678413a01e740c86e9367ba0c612b36 Mon Sep 17 00:00:00 2001 From: Douglas Anderson Date: Mon, 17 Jun 2019 10:56:50 -0700 Subject: mmc: core: API to temporarily disable retuning for SDIO CRC errors Normally when the MMC core sees an "-EILSEQ" error returned by a host controller then it will trigger a retuning of the card. This is generally a good idea. However, if a command is expected to sometimes cause transfer errors then these transfer errors shouldn't cause a re-tuning. This re-tuning will be a needless waste of time. One example case where a transfer is expected to cause errors is when transitioning between idle (sometimes referred to as "sleep" in Broadcom code) and active state on certain Broadcom WiFi SDIO cards. Specifically if the card was already transitioning between states when the command was sent it could cause an error on the SDIO bus. Let's add an API that the SDIO function drivers can call that will temporarily disable the auto-tuning functionality. Then we can add a call to this in the Broadcom WiFi driver and any other driver that might have similar needs. NOTE: this makes the assumption that the card is already tuned well enough that it's OK to disable the auto-retuning during one of these error-prone situations. Presumably the driver code performing the error-prone transfer knows how to recover / retry from errors. ...and after we can get back to a state where transfers are no longer error-prone then we can enable the auto-retuning again. If we truly find ourselves in a case where the card needs to be retuned sometimes to handle one of these error-prone transfers then we can always try a few transfers first without auto-retuning and then re-try with auto-retuning if the first few fail. Without this change on rk3288-veyron-minnie I periodically see this in the logs of a machine just sitting there idle: dwmmc_rockchip ff0d0000.dwmmc: Successfully tuned phase to XYZ Cc: stable@vger.kernel.org #v4.18+ Signed-off-by: Douglas Anderson Acked-by: Adrian Hunter Acked-by: Kalle Valo Signed-off-by: Ulf Hansson --- include/linux/mmc/host.h | 1 + include/linux/mmc/sdio_func.h | 3 +++ 2 files changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 43d0f0c496f6..ecb7972e2423 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -398,6 +398,7 @@ struct mmc_host { unsigned int retune_now:1; /* do re-tuning at next req */ unsigned int retune_paused:1; /* re-tuning is temporarily disabled */ unsigned int use_blk_mq:1; /* use blk-mq */ + unsigned int retune_crc_disable:1; /* don't trigger retune upon crc */ int rescan_disable; /* disable card detection */ int rescan_entered; /* used with nonremovable devices */ diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h index e9dfdd501cd1..4820e6d09dac 100644 --- a/include/linux/mmc/sdio_func.h +++ b/include/linux/mmc/sdio_func.h @@ -167,4 +167,7 @@ extern void sdio_f0_writeb(struct sdio_func *func, unsigned char b, extern mmc_pm_flag_t sdio_get_host_pm_caps(struct sdio_func *func); extern int sdio_set_host_pm_flags(struct sdio_func *func, mmc_pm_flag_t flags); +extern void sdio_retune_crc_disable(struct sdio_func *func); +extern void sdio_retune_crc_enable(struct sdio_func *func); + #endif /* LINUX_MMC_SDIO_FUNC_H */ -- cgit v1.2.3 From b4c9f938d542d5f88c501744d2d12fad4fd2915f Mon Sep 17 00:00:00 2001 From: Douglas Anderson Date: Mon, 17 Jun 2019 10:56:52 -0700 Subject: mmc: core: Add sdio_retune_hold_now() and sdio_retune_release() We want SDIO drivers to be able to temporarily stop retuning when the driver knows that the SDIO card is not in a state where retuning will work (maybe because the card is asleep). We'll move the relevant functions to a place where drivers can call them. Cc: stable@vger.kernel.org #v4.18+ Signed-off-by: Douglas Anderson Acked-by: Adrian Hunter Acked-by: Kalle Valo Signed-off-by: Ulf Hansson --- include/linux/mmc/sdio_func.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h index 4820e6d09dac..5a177f7a83c3 100644 --- a/include/linux/mmc/sdio_func.h +++ b/include/linux/mmc/sdio_func.h @@ -170,4 +170,7 @@ extern int sdio_set_host_pm_flags(struct sdio_func *func, mmc_pm_flag_t flags); extern void sdio_retune_crc_disable(struct sdio_func *func); extern void sdio_retune_crc_enable(struct sdio_func *func); +extern void sdio_retune_hold_now(struct sdio_func *func); +extern void sdio_retune_release(struct sdio_func *func); + #endif /* LINUX_MMC_SDIO_FUNC_H */ -- cgit v1.2.3 From c285a2f01d692ef48d7243cf1072897bbd237407 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Wed, 19 Jun 2019 13:34:44 +0300 Subject: fanotify: update connector fsid cache on add mark When implementing connector fsid cache, we only initialized the cache when the first mark added to object was added by FAN_REPORT_FID group. We forgot to update conn->fsid when the second mark is added by FAN_REPORT_FID group to an already attached connector without fsid cache. Reported-and-tested-by: syzbot+c277e8e2f46414645508@syzkaller.appspotmail.com Fixes: 77115225acc6 ("fanotify: cache fsid in fsnotify_mark_connector") Signed-off-by: Amir Goldstein Signed-off-by: Jan Kara --- include/linux/fsnotify_backend.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index a9f9dcc1e515..d4844cad2c2b 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -292,7 +292,9 @@ typedef struct fsnotify_mark_connector __rcu *fsnotify_connp_t; */ struct fsnotify_mark_connector { spinlock_t lock; - unsigned int type; /* Type of object [lock] */ + unsigned short type; /* Type of object [lock] */ +#define FSNOTIFY_CONN_FLAG_HAS_FSID 0x01 + unsigned short flags; /* flags [lock] */ __kernel_fsid_t fsid; /* fsid of filesystem containing object */ union { /* Object pointer [lock] */ -- cgit v1.2.3 From 40b0b3f8fb2d8f55d13ceed41593d46689a6b496 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 3 Jun 2019 07:44:46 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230 Based on 2 normalized pattern(s): this source code is licensed under the gnu general public license version 2 see the file copying for more details this source code is licensed under general public license version 2 see extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 52 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204653.449021192@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/crc-itu-t.h | 4 +--- include/linux/crc16.h | 4 +--- include/linux/genalloc.h | 4 +--- include/linux/sha256.h | 4 +--- 4 files changed, 4 insertions(+), 12 deletions(-) (limited to 'include/linux') diff --git a/include/linux/crc-itu-t.h b/include/linux/crc-itu-t.h index a9953c762eee..a4367051e192 100644 --- a/include/linux/crc-itu-t.h +++ b/include/linux/crc-itu-t.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * crc-itu-t.h - CRC ITU-T V.41 routine * @@ -5,9 +6,6 @@ * Width 16 * Poly 0x1021 (x^16 + x^12 + x^15 + 1) * Init 0 - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #ifndef CRC_ITU_T_H diff --git a/include/linux/crc16.h b/include/linux/crc16.h index 9443c084f881..9fa74529b317 100644 --- a/include/linux/crc16.h +++ b/include/linux/crc16.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * crc16.h - CRC-16 routine * @@ -7,9 +8,6 @@ * Init 0 * * Copyright (c) 2005 Ben Gardner - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #ifndef __CRC16_H diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h index a337313e064f..205f62b8d291 100644 --- a/include/linux/genalloc.h +++ b/include/linux/genalloc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Basic general purpose allocator for managing special purpose * memory, for example, memory that is not managed by the regular @@ -21,9 +22,6 @@ * the allocator can NOT be used in NMI handler. So code uses the * allocator in NMI handler should depend on * CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG. - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ diff --git a/include/linux/sha256.h b/include/linux/sha256.h index 244fe01a65fb..26972b9e92db 100644 --- a/include/linux/sha256.h +++ b/include/linux/sha256.h @@ -1,10 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014 Red Hat Inc. * * Author: Vivek Goyal - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #ifndef SHA256_H -- cgit v1.2.3 From caab277b1de0a22b675c4c95fc7b285ec2eb5bf5 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 3 Jun 2019 07:44:50 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 503 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Reviewed-by: Enrico Weigelt Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/apple-gmux.h | 13 +------------ include/linux/dma-buf.h | 13 +------------ include/linux/dma-iommu.h | 13 +------------ include/linux/input/cma3000.h | 13 +------------ include/linux/irqchip/arm-gic-v3.h | 14 +------------- include/linux/irqchip/arm-gic-v4.h | 13 +------------ include/linux/irqchip/chained_irq.h | 13 +------------ include/linux/irqchip/irq-partition-percpu.h | 13 +------------ include/linux/mfd/atmel-hlcdc.h | 13 +------------ include/linux/mfd/sky81452.h | 13 +------------ include/linux/platform_data/dmtimer-omap.h | 13 +------------ include/linux/platform_data/sky81452-backlight.h | 13 +------------ include/linux/rtsx_usb.h | 13 +------------ include/linux/uwb/debug-cmd.h | 13 +------------ 14 files changed, 14 insertions(+), 169 deletions(-) (limited to 'include/linux') diff --git a/include/linux/apple-gmux.h b/include/linux/apple-gmux.h index 714186de8c36..ddb10aa67b14 100644 --- a/include/linux/apple-gmux.h +++ b/include/linux/apple-gmux.h @@ -1,18 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * apple-gmux.h - microcontroller built into dual GPU MacBook Pro & Mac Pro * Copyright (C) 2015 Lukas Wunner - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License (version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see . */ #ifndef LINUX_APPLE_GMUX_H diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h index 58725f890b5b..9b84114f74ce 100644 --- a/include/linux/dma-buf.h +++ b/include/linux/dma-buf.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Header file for dma buffer sharing framework. * @@ -8,18 +9,6 @@ * Arnd Bergmann , Rob Clark and * Daniel Vetter for their support in creation and * refining of this idea. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see . */ #ifndef __DMA_BUF_H__ #define __DMA_BUF_H__ diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h index 476e0c54de2d..37258c8b2063 100644 --- a/include/linux/dma-iommu.h +++ b/include/linux/dma-iommu.h @@ -1,17 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014-2015 ARM Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . */ #ifndef __DMA_IOMMU_H #define __DMA_IOMMU_H diff --git a/include/linux/input/cma3000.h b/include/linux/input/cma3000.h index cbbaac27d311..aaab51fa909f 100644 --- a/include/linux/input/cma3000.h +++ b/include/linux/input/cma3000.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * VTI CMA3000_Dxx Accelerometer driver * * Copyright (C) 2010 Texas Instruments * Author: Hemanth V - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see . */ #ifndef _LINUX_CMA3000_H diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h index c7e3e39224c6..67c4b9806d43 100644 --- a/include/linux/irqchip/arm-gic-v3.h +++ b/include/linux/irqchip/arm-gic-v3.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2013, 2014 ARM Limited, All Rights Reserved. * Author: Marc Zyngier - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . */ #ifndef __LINUX_IRQCHIP_ARM_GIC_V3_H #define __LINUX_IRQCHIP_ARM_GIC_V3_H diff --git a/include/linux/irqchip/arm-gic-v4.h b/include/linux/irqchip/arm-gic-v4.h index fa683ea5c769..e6b155713b47 100644 --- a/include/linux/irqchip/arm-gic-v4.h +++ b/include/linux/irqchip/arm-gic-v4.h @@ -1,18 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2016,2017 ARM Limited, All Rights Reserved. * Author: Marc Zyngier - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . */ #ifndef __LINUX_IRQCHIP_ARM_GIC_V4_H diff --git a/include/linux/irqchip/chained_irq.h b/include/linux/irqchip/chained_irq.h index adf4c30f3af6..dd8b3c476666 100644 --- a/include/linux/irqchip/chained_irq.h +++ b/include/linux/irqchip/chained_irq.h @@ -1,19 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Chained IRQ handlers support. * * Copyright (C) 2011 ARM Ltd. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . */ #ifndef __IRQCHIP_CHAINED_IRQ_H #define __IRQCHIP_CHAINED_IRQ_H diff --git a/include/linux/irqchip/irq-partition-percpu.h b/include/linux/irqchip/irq-partition-percpu.h index 87433a5d1285..a783ddb58444 100644 --- a/include/linux/irqchip/irq-partition-percpu.h +++ b/include/linux/irqchip/irq-partition-percpu.h @@ -1,18 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2016 ARM Limited, All Rights Reserved. * Author: Marc Zyngier - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . */ #include diff --git a/include/linux/mfd/atmel-hlcdc.h b/include/linux/mfd/atmel-hlcdc.h index 1279ab1644b5..a186119a49b5 100644 --- a/include/linux/mfd/atmel-hlcdc.h +++ b/include/linux/mfd/atmel-hlcdc.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014 Free Electrons * Copyright (C) 2014 Atmel * * Author: Boris BREZILLON - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see . */ #ifndef __LINUX_MFD_HLCDC_H diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h index b0925fa3e9ef..d469aa481243 100644 --- a/include/linux/mfd/sky81452.h +++ b/include/linux/mfd/sky81452.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * sky81452.h SKY81452 MFD driver * * Copyright 2014 Skyworks Solutions Inc. * Author : Gyungoh Yoo - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, see . */ #ifndef _SKY81452_H diff --git a/include/linux/platform_data/dmtimer-omap.h b/include/linux/platform_data/dmtimer-omap.h index 757a0f9e26f9..bdaaf537604a 100644 --- a/include/linux/platform_data/dmtimer-omap.h +++ b/include/linux/platform_data/dmtimer-omap.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * DMTIMER platform data for TI OMAP platforms * * Copyright (C) 2012 Texas Instruments * Author: Jon Hunter - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see . */ #ifndef __PLATFORM_DATA_DMTIMER_OMAP_H__ diff --git a/include/linux/platform_data/sky81452-backlight.h b/include/linux/platform_data/sky81452-backlight.h index 1231e9bb00f1..02653d92d84f 100644 --- a/include/linux/platform_data/sky81452-backlight.h +++ b/include/linux/platform_data/sky81452-backlight.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * sky81452.h SKY81452 backlight driver * * Copyright 2014 Skyworks Solutions Inc. * Author : Gyungoh Yoo - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, see . */ #ifndef _SKY81452_BACKLIGHT_H diff --git a/include/linux/rtsx_usb.h b/include/linux/rtsx_usb.h index c446e4fd6b5c..159729cffd8e 100644 --- a/include/linux/rtsx_usb.h +++ b/include/linux/rtsx_usb.h @@ -1,19 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* Driver for Realtek RTS5139 USB card reader * * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, see . - * * Author: * Roger Tseng */ diff --git a/include/linux/uwb/debug-cmd.h b/include/linux/uwb/debug-cmd.h index 8da004e25628..f97db6c3bcc0 100644 --- a/include/linux/uwb/debug-cmd.h +++ b/include/linux/uwb/debug-cmd.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Ultra Wide Band * Debug interface commands * * Copyright (C) 2008 Cambridge Silicon Radio Ltd. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . */ #ifndef __LINUX__UWB__DEBUG_CMD_H__ #define __LINUX__UWB__DEBUG_CMD_H__ -- cgit v1.2.3 From 2504ba9f5970299a33ca7802c60359f849146d78 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 3 Jun 2019 07:44:51 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 235 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 53 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204653.904365654@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/kvm_irqfd.h | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/kvm_irqfd.h b/include/linux/kvm_irqfd.h index 76c2fbc59f35..dc1da020305b 100644 --- a/include/linux/kvm_irqfd.h +++ b/include/linux/kvm_irqfd.h @@ -1,12 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. * * irqfd: Allows an fd to be used to inject an interrupt to the guest * Credit goes to Avi Kivity for the original idea. -- cgit v1.2.3 From e311edbc45de6163a278fd5a8be0dabe2efd9b9b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 3 Jun 2019 07:45:00 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 244 Based on 1 normalized pattern(s): this file is rleased under the gpl v2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Reviewed-by: Enrico Weigelt Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204654.725819457@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/klist.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/klist.h b/include/linux/klist.h index 953f283f8451..b0f238f20dbb 100644 --- a/include/linux/klist.h +++ b/include/linux/klist.h @@ -1,12 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * klist.h - Some generic list helpers, extending struct list_head a bit. * * Implementations are found in lib/klist.c * - * * Copyright (C) 2005 Patrick Mochel - * - * This file is rleased under the GPL v2. */ #ifndef _LINUX_KLIST_H -- cgit v1.2.3 From d82444d2a9d010c08c423bf5c6102d43a14b8739 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 3 Jun 2019 07:45:01 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 245 Based on 1 normalized pattern(s): gpl v2 only extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204654.833758402@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/platform_data/atmel.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/atmel.h b/include/linux/platform_data/atmel.h index cdceb4d4ef9d..99e6069c5fd8 100644 --- a/include/linux/platform_data/atmel.h +++ b/include/linux/platform_data/atmel.h @@ -1,7 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * atmel platform data - * - * GPL v2 Only */ #ifndef __ATMEL_H__ -- cgit v1.2.3 From f85d208658468b1a298f31daddb05a7684969cd4 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 4 Jun 2019 10:10:45 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 451 Based on 1 normalized pattern(s): this file is subject to the terms and conditions of version 2 of the gnu general public license see the file copying in the main directory of the linux distribution for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 5 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081200.872755311@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/cgroup_rdma.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cgroup_rdma.h b/include/linux/cgroup_rdma.h index ef1bae2983f3..80edae03c313 100644 --- a/include/linux/cgroup_rdma.h +++ b/include/linux/cgroup_rdma.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2016 Parav Pandit - * - * This file is subject to the terms and conditions of version 2 of the GNU - * General Public License. See the file COPYING in the main directory of the - * Linux distribution for more details. */ #ifndef _CGROUP_RDMA_H -- cgit v1.2.3 From 1f67b599f8b8f976d2ea1a447c0f5e768a78ae8e Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 4 Jun 2019 10:10:57 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 464 Based on 1 normalized pattern(s): license terms gnu general public license version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 11 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Enrico Weigelt Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081202.373849232@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/mfd/stmpe.h | 2 +- include/linux/mfd/tc3589x.h | 3 +-- 2 files changed, 2 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/stmpe.h b/include/linux/mfd/stmpe.h index 07f55aac9390..87e29d561e22 100644 --- a/include/linux/mfd/stmpe.h +++ b/include/linux/mfd/stmpe.h @@ -1,7 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2010 * - * License Terms: GNU General Public License, version 2 * Author: Rabin Vincent for ST-Ericsson */ diff --git a/include/linux/mfd/tc3589x.h b/include/linux/mfd/tc3589x.h index 468c31a27fcf..bb2b19599761 100644 --- a/include/linux/mfd/tc3589x.h +++ b/include/linux/mfd/tc3589x.h @@ -1,7 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2010 - * - * License Terms: GNU General Public License, version 2 */ #ifndef __LINUX_MFD_TC3589x_H -- cgit v1.2.3 From 6b99076ceda935f3032d023bbab7c1c966c2cbbd Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 4 Jun 2019 10:11:02 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 469 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of mergchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Enrico Weigelt Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081202.997941624@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/fsi-sbefifo.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fsi-sbefifo.h b/include/linux/fsi-sbefifo.h index 13f9ebeaa25e..a9935e806f8e 100644 --- a/include/linux/fsi-sbefifo.h +++ b/include/linux/fsi-sbefifo.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * SBEFIFO FSI Client device driver * * Copyright (C) IBM Corporation 2017 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERGCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef LINUX_FSI_SBEFIFO_H -- cgit v1.2.3 From f361c4dc5e2fb14a4441b08b29520864a74078f6 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 4 Jun 2019 10:11:17 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 484 Based on 1 normalized pattern(s): this source code is licensed under general public license version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 5 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Enrico Weigelt Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081204.871734026@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/netfilter/nf_conntrack_h323_asn1.h | 4 +--- include/linux/netfilter/nf_conntrack_h323_types.h | 3 +-- 2 files changed, 2 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netfilter/nf_conntrack_h323_asn1.h b/include/linux/netfilter/nf_conntrack_h323_asn1.h index 3176a277eed1..91d6275292a5 100644 --- a/include/linux/netfilter/nf_conntrack_h323_asn1.h +++ b/include/linux/netfilter/nf_conntrack_h323_asn1.h @@ -1,12 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /**************************************************************************** * ip_conntrack_h323_asn1.h - BER and PER decoding library for H.323 * conntrack/NAT module. * * Copyright (c) 2006 by Jing Min Zhao * - * This source code is licensed under General Public License version 2. - * - * * This library is based on H.225 version 4, H.235 version 2 and H.245 * version 7. It is extremely optimized to decode only the absolutely * necessary objects in a signal for Linux kernel NAT module use, so don't diff --git a/include/linux/netfilter/nf_conntrack_h323_types.h b/include/linux/netfilter/nf_conntrack_h323_types.h index b0821f45fbe4..7a6871ac8784 100644 --- a/include/linux/netfilter/nf_conntrack_h323_types.h +++ b/include/linux/netfilter/nf_conntrack_h323_types.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* Generated by Jing Min Zhao's ASN.1 parser, May 16 2007 * * Copyright (c) 2006 Jing Min Zhao - * - * This source code is licensed under General Public License version 2. */ typedef struct TransportAddress_ipAddress { /* SEQUENCE */ -- cgit v1.2.3 From 4c3dd9cd769b5d15ea92d443cc23b3d13932cce2 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 4 Jun 2019 10:11:24 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 3 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081205.739216165@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/platform_data/nxp-nci.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/platform_data/nxp-nci.h b/include/linux/platform_data/nxp-nci.h index d6ed28679bb2..97827ad468e2 100644 --- a/include/linux/platform_data/nxp-nci.h +++ b/include/linux/platform_data/nxp-nci.h @@ -1,18 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Generic platform data for the NXP NCI NFC chips. * * Copyright (C) 2014 NXP Semiconductors All rights reserved. * * Authors: Clément Perrochaud - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _NXP_NCI_H_ -- cgit v1.2.3 From aaa7cb268cc4255ffdfbe60e63bf7cf4a6a511f7 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 4 Jun 2019 10:11:28 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 10 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Enrico Weigelt Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.259525894@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/can/rx-offload.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/can/rx-offload.h b/include/linux/can/rx-offload.h index 8268811a697e..9daa1119ea42 100644 --- a/include/linux/can/rx-offload.h +++ b/include/linux/can/rx-offload.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/can/rx-offload.h * * Copyright (c) 2014 David Jander, Protonic Holland * Copyright (c) 2014-2017 Pengutronix, Marc Kleine-Budde - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the version 2 of the GNU General Public License - * as published by the Free Software Foundation - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _CAN_RX_OFFLOAD_H -- cgit v1.2.3 From 20c8ccb1975b8d5639789d1025ad6ada38bd6f48 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 4 Jun 2019 10:11:32 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 Based on 1 normalized pattern(s): this work is licensed under the terms of the gnu gpl version 2 see the copying file in the top level directory extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 35 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Enrico Weigelt Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.797835076@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/kvm_host.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 79fa4426509c..d1ad38a3f048 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef __KVM_HOST_H #define __KVM_HOST_H -/* - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - */ #include #include -- cgit v1.2.3 From d2912cb15bdda8ba4a5dd73396ad62641af2f520 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 4 Jun 2019 10:11:33 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/acpi_dma.h | 5 +---- include/linux/amba/bus.h | 5 +---- include/linux/amba/pl080.h | 5 +---- include/linux/amba/pl08x.h | 5 +---- include/linux/amba/pl093.h | 5 +---- include/linux/c2port.h | 5 +---- include/linux/can/led.h | 5 +---- include/linux/cb710.h | 9 +-------- include/linux/ccp.h | 5 +---- include/linux/clk.h | 5 +---- include/linux/clk/mxs.h | 5 +---- include/linux/clkdev.h | 5 +---- include/linux/cnt32_to_63.h | 5 +---- include/linux/container.h | 5 +---- include/linux/cpu_rmap.h | 5 +---- include/linux/cpufeature.h | 5 +---- include/linux/cpufreq.h | 5 +---- include/linux/devfreq-event.h | 5 +---- include/linux/devfreq.h | 5 +---- include/linux/dm9000.h | 6 +----- include/linux/dma/hsu.h | 5 +---- include/linux/dma/ipu-dma.h | 5 +---- include/linux/dw_apb_timer.h | 5 +---- include/linux/extcon/extcon-adc-jack.h | 6 +----- include/linux/fec.h | 5 +---- include/linux/fsl/bestcomm/gen_bd.h | 8 +------- include/linux/fwnode.h | 5 +---- include/linux/gameport.h | 5 +---- include/linux/i8042.h | 6 +----- include/linux/ieee80211.h | 5 +---- include/linux/iio/buffer.h | 5 +---- include/linux/iio/configfs.h | 5 +---- include/linux/iio/consumer.h | 5 +---- include/linux/iio/driver.h | 5 +---- include/linux/iio/events.h | 5 +---- include/linux/iio/gyro/itg3200.h | 5 +---- include/linux/iio/iio.h | 5 +---- include/linux/iio/machine.h | 5 +---- include/linux/iio/sw_device.h | 5 +---- include/linux/iio/sw_trigger.h | 5 +---- include/linux/iio/sysfs.h | 5 +---- include/linux/iio/trigger.h | 5 +---- include/linux/iio/trigger_consumer.h | 5 +---- include/linux/iio/types.h | 5 +---- include/linux/input-polldev.h | 5 +---- include/linux/input.h | 5 +---- include/linux/input/as5011.h | 5 +---- include/linux/input/mt.h | 5 +---- include/linux/input/navpoint.h | 5 +---- include/linux/input/sparse-keymap.h | 5 +---- include/linux/input/touchscreen.h | 5 +---- include/linux/irqbypass.h | 5 +---- include/linux/irqchip/arm-gic-common.h | 5 +---- include/linux/irqchip/arm-gic.h | 5 +---- include/linux/irqchip/irq-sa11x0.h | 5 +---- include/linux/irqchip/mxs.h | 5 +---- include/linux/led-class-flash.h | 6 +----- include/linux/leds-bd2802.h | 6 +----- include/linux/leds-lp3944.h | 6 +----- include/linux/leds-lp3952.h | 6 +----- include/linux/leds-regulator.h | 6 +----- include/linux/leds.h | 6 +----- include/linux/libps2.h | 5 +---- include/linux/mailbox/brcm-message.h | 5 +---- include/linux/mailbox_client.h | 5 +---- include/linux/mailbox_controller.h | 6 +----- include/linux/max17040_battery.h | 5 +---- include/linux/mdev.h | 5 +---- include/linux/mdio.h | 5 +---- include/linux/mem_encrypt.h | 5 +---- include/linux/memstick.h | 6 +----- include/linux/mfd/88pm80x.h | 5 +---- include/linux/mfd/88pm860x.h | 5 +---- include/linux/mfd/abx500/ab8500-codec.h | 5 +---- include/linux/mfd/ac100.h | 5 +---- include/linux/mfd/arizona/core.h | 5 +---- include/linux/mfd/arizona/pdata.h | 5 +---- include/linux/mfd/arizona/registers.h | 5 +---- include/linux/mfd/asic3.h | 5 +---- include/linux/mfd/axp20x.h | 5 +---- include/linux/mfd/core.h | 6 +----- include/linux/mfd/hi6421-pmic.h | 5 +---- include/linux/mfd/hi655x-pmic.h | 5 +---- include/linux/mfd/lp3943.h | 6 +----- include/linux/mfd/lp8788-isink.h | 6 +----- include/linux/mfd/lp8788.h | 6 +----- include/linux/mfd/max8907.h | 5 +---- include/linux/mfd/max8925.h | 5 +---- include/linux/mfd/mc13783.h | 5 +---- include/linux/mfd/mc13892.h | 5 +---- include/linux/mfd/mc13xxx.h | 5 +---- include/linux/mfd/motorola-cpcap.h | 5 +---- include/linux/mfd/mt6323/core.h | 5 +---- include/linux/mfd/mt6323/registers.h | 5 +---- include/linux/mfd/sun4i-gpadc.h | 5 +---- include/linux/mfd/syscon/imx6q-iomuxc-gpr.h | 5 +---- include/linux/mfd/syscon/imx7-iomuxc-gpr.h | 5 +---- include/linux/mfd/t7l66xb.h | 6 +----- include/linux/mfd/tc6393xb.h | 5 +---- include/linux/mfd/ti-lmu-register.h | 5 +---- include/linux/mfd/ti-lmu.h | 5 +---- include/linux/mm-arch-hooks.h | 5 +---- include/linux/mmc/card.h | 5 +---- include/linux/mmc/core.h | 5 +---- include/linux/mmc/host.h | 5 +---- include/linux/mmc/pm.h | 5 +---- include/linux/mmc/slot-gpio.h | 5 +---- include/linux/mtd/lpc32xx_mlc.h | 5 +---- include/linux/mtd/lpc32xx_slc.h | 5 +---- include/linux/mtd/nand_bch.h | 5 +---- include/linux/mtd/nand_ecc.h | 5 +---- include/linux/mtd/ndfc.h | 6 +----- include/linux/mtd/onenand.h | 5 +---- include/linux/mtd/onenand_regs.h | 5 +---- include/linux/mtd/plat-ram.h | 6 +----- include/linux/mtd/rawnand.h | 5 +---- include/linux/mtd/sharpsl.h | 5 +---- include/linux/mtd/xip.h | 5 +---- include/linux/netfilter/ipset/ip_set.h | 5 +---- include/linux/netfilter/ipset/ip_set_comment.h | 5 +---- include/linux/netfilter/ipset/ip_set_counter.h | 5 +---- include/linux/netfilter/ipset/ip_set_skbinfo.h | 5 +---- include/linux/netfilter/ipset/ip_set_timeout.h | 5 +---- include/linux/omap-dmaengine.h | 5 +---- include/linux/omap-iommu.h | 5 +---- include/linux/pda_power.h | 5 +---- include/linux/perf/arm_pmu.h | 6 +----- include/linux/platform_data/ads7828.h | 5 +---- include/linux/platform_data/asoc-s3c.h | 5 +---- include/linux/platform_data/asoc-s3c24xx_simtec.h | 5 +---- include/linux/platform_data/ata-samsung_cf.h | 5 +---- include/linux/platform_data/bd6107.h | 5 +---- include/linux/platform_data/cpuidle-exynos.h | 5 +---- include/linux/platform_data/dma-hsu.h | 5 +---- include/linux/platform_data/dma-imx.h | 5 +---- include/linux/platform_data/dma-mmp_tdma.h | 6 +----- include/linux/platform_data/emif_plat.h | 5 +---- include/linux/platform_data/fsa9480.h | 5 +---- include/linux/platform_data/gpio-ath79.h | 5 +---- include/linux/platform_data/gpio_backlight.h | 5 +---- include/linux/platform_data/hsmmc-omap.h | 5 +---- include/linux/platform_data/hwmon-s3c.h | 5 +---- include/linux/platform_data/i2c-gpio.h | 5 +---- include/linux/platform_data/i2c-mux-gpio.h | 5 +---- include/linux/platform_data/i2c-pxa.h | 6 +----- include/linux/platform_data/i2c-s3c2410.h | 5 +---- include/linux/platform_data/ina2xx.h | 5 +---- include/linux/platform_data/intel-spi.h | 5 +---- include/linux/platform_data/iommu-omap.h | 5 +---- include/linux/platform_data/irda-sa11x0.h | 5 +---- include/linux/platform_data/keypad-omap.h | 5 +---- include/linux/platform_data/leds-lp55xx.h | 5 +---- include/linux/platform_data/leds-omap.h | 5 +---- include/linux/platform_data/leds-s3c24xx.h | 5 +---- include/linux/platform_data/lm3630a_bl.h | 6 +----- include/linux/platform_data/lm3639_bl.h | 6 +----- include/linux/platform_data/lp855x.h | 6 +----- include/linux/platform_data/lp8727.h | 5 +---- include/linux/platform_data/lp8755.h | 6 +----- include/linux/platform_data/lv5207lp.h | 5 +---- include/linux/platform_data/macb.h | 5 +---- include/linux/platform_data/max197.h | 5 +---- include/linux/platform_data/max6697.h | 5 +---- include/linux/platform_data/media/omap1_camera.h | 5 +---- include/linux/platform_data/mfd-mcp-sa11x0.h | 5 +---- include/linux/platform_data/mmc-omap.h | 5 +---- include/linux/platform_data/mmp_audio.h | 6 +----- include/linux/platform_data/mmp_dma.h | 6 +----- include/linux/platform_data/mtd-nand-omap2.h | 5 +---- include/linux/platform_data/mtd-nand-s3c2410.h | 5 +---- include/linux/platform_data/pxa_sdhci.h | 5 +---- include/linux/platform_data/regulator-haptic.h | 5 +---- include/linux/platform_data/s3c-hsotg.h | 5 +---- include/linux/platform_data/s3c-hsudc.h | 5 +---- include/linux/platform_data/sc18is602.h | 5 +---- include/linux/platform_data/spi-ath79.h | 5 +---- include/linux/platform_data/spi-mt65xx.h | 5 +---- include/linux/platform_data/ti-aemif.h | 5 +---- include/linux/platform_data/touchscreen-s3c2410.h | 5 +---- include/linux/platform_data/txx9/ndfmc.h | 4 +--- include/linux/platform_data/usb-ohci-s3c2410.h | 5 +---- include/linux/platform_data/usb-pxa3xx-ulpi.h | 5 +---- include/linux/platform_data/usb-s3c2410_udc.h | 7 +------ include/linux/platform_data/video-mx3fb.h | 5 +---- include/linux/platform_data/video-pxafb.h | 5 +---- include/linux/platform_data/voltage-omap.h | 5 +---- include/linux/platform_data/x86/clk-lpss.h | 5 +---- include/linux/pm_opp.h | 5 +---- include/linux/power/bq24190_charger.h | 5 +---- include/linux/power/charger-manager.h | 4 +--- include/linux/power/generic-adc-battery.h | 4 +--- include/linux/power/smb347-charger.h | 5 +---- include/linux/ppp-comp.h | 5 +---- include/linux/ppp_defs.h | 5 +---- include/linux/property.h | 5 +---- include/linux/psp-sev.h | 5 +---- include/linux/pxa2xx_ssp.h | 5 +---- include/linux/regmap.h | 5 +---- include/linux/regulator/arizona-ldo1.h | 5 +---- include/linux/regulator/arizona-micsupp.h | 5 +---- include/linux/regulator/consumer.h | 6 +----- include/linux/regulator/driver.h | 5 +---- include/linux/regulator/lp872x.h | 6 +----- include/linux/regulator/machine.h | 5 +---- include/linux/regulator/max8649.h | 5 +---- include/linux/rmi.h | 5 +---- include/linux/rtc/ds1685.h | 5 +---- include/linux/rtc/m48t59.h | 5 +---- include/linux/sched_clock.h | 5 +---- include/linux/serio.h | 5 +---- include/linux/set_memory.h | 5 +---- include/linux/sh_dma.h | 5 +---- include/linux/siox.h | 5 +---- include/linux/sizes.h | 5 +---- include/linux/sm501-regs.h | 5 +---- include/linux/spi/s3c24xx.h | 5 +---- include/linux/sxgbe_platform.h | 5 +---- include/linux/tca6416_keypad.h | 5 +---- include/linux/tifm.h | 6 +----- include/linux/timeriomem-rng.h | 5 +---- include/linux/tracefs.h | 6 +----- include/linux/ucb1400.h | 5 +---- include/linux/vfio.h | 5 +---- include/linux/w1-gpio.h | 5 +---- 224 files changed, 224 insertions(+), 933 deletions(-) (limited to 'include/linux') diff --git a/include/linux/acpi_dma.h b/include/linux/acpi_dma.h index 329436d38e66..72cedb916a9c 100644 --- a/include/linux/acpi_dma.h +++ b/include/linux/acpi_dma.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ACPI helpers for DMA request / controller * @@ -5,10 +6,6 @@ * * Copyright (C) 2013, Intel Corporation * Author: Andy Shevchenko - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_ACPI_DMA_H diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h index f99b74a6e4ca..26f0ecf401ea 100644 --- a/include/linux/amba/bus.h +++ b/include/linux/amba/bus.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/amba/bus.h * @@ -6,10 +7,6 @@ * region or that is derived from a PrimeCell. * * Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef ASMARM_AMBA_H #define ASMARM_AMBA_H diff --git a/include/linux/amba/pl080.h b/include/linux/amba/pl080.h index ab036b6b1804..e192d546639b 100644 --- a/include/linux/amba/pl080.h +++ b/include/linux/amba/pl080.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* include/linux/amba/pl080.h * * Copyright 2008 Openmoko, Inc. @@ -6,10 +7,6 @@ * Ben Dooks * * ARM PrimeCell PL080 DMA controller - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ /* Note, there are some Samsung updates to this controller block which diff --git a/include/linux/amba/pl08x.h b/include/linux/amba/pl08x.h index 79d1bcee738d..3100e0debcdd 100644 --- a/include/linux/amba/pl08x.h +++ b/include/linux/amba/pl08x.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/amba/pl08x.h - ARM PrimeCell DMA Controller driver * * Copyright (C) 2005 ARM Ltd * Copyright (C) 2010 ST-Ericsson SA * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * pl08x information required by platform code * * Please credit ARM.com diff --git a/include/linux/amba/pl093.h b/include/linux/amba/pl093.h index 2983e3671adb..b17166e3b49a 100644 --- a/include/linux/amba/pl093.h +++ b/include/linux/amba/pl093.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* linux/amba/pl093.h * * Copyright (c) 2008 Simtec Electronics @@ -6,10 +7,6 @@ * * AMBA PL093 SSMC (synchronous static memory controller) * See DDI0236.pdf (r0p4) for more details - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #define SMB_BANK(x) ((x) * 0x20) /* each bank control set is 0x20 apart */ diff --git a/include/linux/c2port.h b/include/linux/c2port.h index f2736348ca26..4e93bc63c27a 100644 --- a/include/linux/c2port.h +++ b/include/linux/c2port.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Silicon Labs C2 port Linux support * * Copyright (c) 2007 Rodolfo Giometti * Copyright (c) 2007 Eurotech S.p.A. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation */ #define C2PORT_NAME_LEN 32 diff --git a/include/linux/can/led.h b/include/linux/can/led.h index 2746f7c2f87d..7c3cfd798c56 100644 --- a/include/linux/can/led.h +++ b/include/linux/can/led.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2012, Fabio Baltieri - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _CAN_LED_H diff --git a/include/linux/cb710.h b/include/linux/cb710.h index 8cc10411bab2..60de3fedd3a7 100644 --- a/include/linux/cb710.h +++ b/include/linux/cb710.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * cb710/cb710.h * * Copyright by Michał Mirosław, 2008-2009 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef LINUX_CB710_DRIVER_H #define LINUX_CB710_DRIVER_H @@ -129,10 +126,6 @@ void cb710_dump_regs(struct cb710_chip *chip, unsigned dump); * cb710/sgbuf2.h * * Copyright by Michał Mirosław, 2008-2009 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef LINUX_CB710_SG_H #define LINUX_CB710_SG_H diff --git a/include/linux/ccp.h b/include/linux/ccp.h index 7e9c991c95e0..55cb455cfcb0 100644 --- a/include/linux/ccp.h +++ b/include/linux/ccp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AMD Cryptographic Coprocessor (CCP) driver * @@ -5,10 +6,6 @@ * * Author: Tom Lendacky * Author: Gary R Hook - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __CCP_H__ diff --git a/include/linux/clk.h b/include/linux/clk.h index f689fc58d7be..c8e3325868bd 100644 --- a/include/linux/clk.h +++ b/include/linux/clk.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/clk.h * * Copyright (C) 2004 ARM Limited. * Written by Deep Blue Solutions Limited. * Copyright (C) 2011-2012 Linaro Ltd - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_CLK_H #define __LINUX_CLK_H diff --git a/include/linux/clk/mxs.h b/include/linux/clk/mxs.h index 5138a90e018c..2674e607ffb1 100644 --- a/include/linux/clk/mxs.h +++ b/include/linux/clk/mxs.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2013 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_CLK_MXS_H diff --git a/include/linux/clkdev.h b/include/linux/clkdev.h index ccb32af5848b..fd06b2780a22 100644 --- a/include/linux/clkdev.h +++ b/include/linux/clkdev.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/clkdev.h * * Copyright (C) 2008 Russell King. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Helper for the clk API to assist looking up a struct clk. */ #ifndef __CLKDEV_H diff --git a/include/linux/cnt32_to_63.h b/include/linux/cnt32_to_63.h index aa629bce9033..064428479f2d 100644 --- a/include/linux/cnt32_to_63.h +++ b/include/linux/cnt32_to_63.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Extend a 32-bit counter to 63 bits * * Author: Nicolas Pitre * Created: December 3, 2006 * Copyright: MontaVista Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. */ #ifndef __LINUX_CNT32_TO_63_H__ diff --git a/include/linux/container.h b/include/linux/container.h index 3c03e6fd2035..0cc2ee91905c 100644 --- a/include/linux/container.h +++ b/include/linux/container.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Definitions for container bus type. * * Copyright (C) 2013, Intel Corporation * Author: Rafael J. Wysocki - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include diff --git a/include/linux/cpu_rmap.h b/include/linux/cpu_rmap.h index bdd18caa6c94..02edeafcb2bf 100644 --- a/include/linux/cpu_rmap.h +++ b/include/linux/cpu_rmap.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef __LINUX_CPU_RMAP_H #define __LINUX_CPU_RMAP_H /* * cpu_rmap.c: CPU affinity reverse-map support * Copyright 2011 Solarflare Communications Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. */ #include diff --git a/include/linux/cpufeature.h b/include/linux/cpufeature.h index 84d3c81b5978..6aff540ee9e5 100644 --- a/include/linux/cpufeature.h +++ b/include/linux/cpufeature.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014 Linaro Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_CPUFEATURE_H diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index d01a74fbc4db..32a1733014f5 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/cpufreq.h * * Copyright (C) 2001 Russell King * (C) 2002 - 2003 Dominik Brodowski - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _LINUX_CPUFREQ_H #define _LINUX_CPUFREQ_H diff --git a/include/linux/devfreq-event.h b/include/linux/devfreq-event.h index 4db00b02ca3f..29fc0dd735ae 100644 --- a/include/linux/devfreq-event.h +++ b/include/linux/devfreq-event.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * devfreq-event: a framework to provide raw data and events of devfreq devices * * Copyright (C) 2014 Samsung Electronics * Author: Chanwoo Choi - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_DEVFREQ_EVENT_H__ diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index fbffa74bfc1b..2bae9ed3c783 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * devfreq: Generic Dynamic Voltage and Frequency Scaling (DVFS) Framework * for Non-CPU Devices. * * Copyright (C) 2011 Samsung Electronics * MyungJoo Ham - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_DEVFREQ_H__ diff --git a/include/linux/dm9000.h b/include/linux/dm9000.h index 841925fbfe8a..df0341dbb451 100644 --- a/include/linux/dm9000.h +++ b/include/linux/dm9000.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* include/linux/dm9000.h * * Copyright (c) 2004 Simtec Electronics * Ben Dooks * * Header file for dm9000 platform data - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __DM9000_PLATFORM_DATA diff --git a/include/linux/dma/hsu.h b/include/linux/dma/hsu.h index 197eec63e501..a6b7bc707356 100644 --- a/include/linux/dma/hsu.h +++ b/include/linux/dma/hsu.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Driver for the High Speed UART DMA * * Copyright (C) 2015 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _DMA_HSU_H diff --git a/include/linux/dma/ipu-dma.h b/include/linux/dma/ipu-dma.h index 18031115c668..6969391580d2 100644 --- a/include/linux/dma/ipu-dma.h +++ b/include/linux/dma/ipu-dma.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2008 * Guennadi Liakhovetski, DENX Software Engineering, * * Copyright (C) 2005-2007 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_DMA_IPU_DMA_H diff --git a/include/linux/dw_apb_timer.h b/include/linux/dw_apb_timer.h index 4334106f44c3..14f072edbca5 100644 --- a/include/linux/dw_apb_timer.h +++ b/include/linux/dw_apb_timer.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * (C) Copyright 2009 Intel Corporation * Author: Jacob Pan (jacob.jun.pan@intel.com) * * Shared with ARM platforms, Jamie Iles, Picochip 2011 * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Support for the Synopsys DesignWare APB Timers. */ #ifndef __DW_APB_TIMER_H__ diff --git a/include/linux/extcon/extcon-adc-jack.h b/include/linux/extcon/extcon-adc-jack.h index 2aa32075bca1..19b437e9c080 100644 --- a/include/linux/extcon/extcon-adc-jack.h +++ b/include/linux/extcon/extcon-adc-jack.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/extcon/extcon-adc-jack.h * @@ -5,11 +6,6 @@ * * Copyright (C) 2012 Samsung Electronics * MyungJoo Ham - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef _EXTCON_ADC_JACK_H_ diff --git a/include/linux/fec.h b/include/linux/fec.h index 1454a503622d..9aaf53f07269 100644 --- a/include/linux/fec.h +++ b/include/linux/fec.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* include/linux/fec.h * * Copyright (c) 2009 Orex Computed Radiography @@ -6,10 +7,6 @@ * Copyright (C) 2010 Freescale Semiconductor, Inc. * * Header file for the FEC platform data - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_FEC_H__ #define __LINUX_FEC_H__ diff --git a/include/linux/fsl/bestcomm/gen_bd.h b/include/linux/fsl/bestcomm/gen_bd.h index de47260e69da..aeb312a1cd00 100644 --- a/include/linux/fsl/bestcomm/gen_bd.h +++ b/include/linux/fsl/bestcomm/gen_bd.h @@ -1,16 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Header for Bestcomm General Buffer Descriptor tasks driver * - * * Copyright (C) 2007 Sylvain Munaut * Copyright (C) 2006 AppSpec Computer Technologies Corp. * Jeff Gibbons - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * */ #ifndef __BESTCOMM_GEN_BD_H__ diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index faebf0ca0686..a11c8c56c78b 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * fwnode.h - Firmware device node object handle type definition. * * Copyright (C) 2015, Intel Corporation * Author: Rafael J. Wysocki - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _LINUX_FWNODE_H_ diff --git a/include/linux/gameport.h b/include/linux/gameport.h index bb7de09e8d57..69081d899492 100644 --- a/include/linux/gameport.h +++ b/include/linux/gameport.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 1999-2002 Vojtech Pavlik - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _GAMEPORT_H #define _GAMEPORT_H diff --git a/include/linux/i8042.h b/include/linux/i8042.h index d98780ca9604..0261e2fb3636 100644 --- a/include/linux/i8042.h +++ b/include/linux/i8042.h @@ -1,11 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _LINUX_I8042_H #define _LINUX_I8042_H -/* - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - */ #include diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 61f0a316c6ac..42690007d612 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * IEEE 802.11 defines * @@ -9,10 +10,6 @@ * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH * Copyright (c) 2016 - 2017 Intel Deutschland GmbH * Copyright (c) 2018 - 2019 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef LINUX_IEEE80211_H diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h index 48767c776119..fbba4093f06c 100644 --- a/include/linux/iio/buffer.h +++ b/include/linux/iio/buffer.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* The industrial I/O core - generic buffer interfaces. * * Copyright (c) 2008 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _IIO_BUFFER_GENERIC_H_ diff --git a/include/linux/iio/configfs.h b/include/linux/iio/configfs.h index 93befd67c15c..84cab3f47e80 100644 --- a/include/linux/iio/configfs.h +++ b/include/linux/iio/configfs.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Industrial I/O configfs support * * Copyright (c) 2015 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef __IIO_CONFIGFS #define __IIO_CONFIGFS diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h index b2d34831ed7c..2bde8c912d4d 100644 --- a/include/linux/iio/consumer.h +++ b/include/linux/iio/consumer.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Industrial I/O in kernel consumer interface * * Copyright (c) 2011 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _IIO_INKERN_CONSUMER_H_ #define _IIO_INKERN_CONSUMER_H_ diff --git a/include/linux/iio/driver.h b/include/linux/iio/driver.h index f54a7bcdefe3..36de60a5da7a 100644 --- a/include/linux/iio/driver.h +++ b/include/linux/iio/driver.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Industrial I/O in kernel access map interface. * * Copyright (c) 2011 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _IIO_INKERN_H_ diff --git a/include/linux/iio/events.h b/include/linux/iio/events.h index 8ad87d1c5340..a4558c45a548 100644 --- a/include/linux/iio/events.h +++ b/include/linux/iio/events.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* The industrial I/O - event passing to userspace * * Copyright (c) 2008-2011 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _IIO_EVENTS_H_ #define _IIO_EVENTS_H_ diff --git a/include/linux/iio/gyro/itg3200.h b/include/linux/iio/gyro/itg3200.h index 0a30fddccfb3..a602fe7b84fa 100644 --- a/include/linux/iio/gyro/itg3200.h +++ b/include/linux/iio/gyro/itg3200.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * itg3200.h -- support InvenSense ITG3200 * Digital 3-Axis Gyroscope driver @@ -5,10 +6,6 @@ * Copyright (c) 2011 Christian Strobel * Copyright (c) 2011 Manuel Stahl * Copyright (c) 2012 Thorsten Nowak - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef I2C_ITG3200_H_ diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index bb10c1bee301..8e132cf819e4 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* The industrial I/O core * * Copyright (c) 2008 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _INDUSTRIAL_IO_H_ #define _INDUSTRIAL_IO_H_ diff --git a/include/linux/iio/machine.h b/include/linux/iio/machine.h index 5e1cfa75f652..fe7ccbb81184 100644 --- a/include/linux/iio/machine.h +++ b/include/linux/iio/machine.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Industrial I/O in kernel access map definitions for board files. * * Copyright (c) 2011 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef __LINUX_IIO_MACHINE_H__ diff --git a/include/linux/iio/sw_device.h b/include/linux/iio/sw_device.h index 8642b91a7577..eff1e6b2595c 100644 --- a/include/linux/iio/sw_device.h +++ b/include/linux/iio/sw_device.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Industrial I/O software device interface * * Copyright (c) 2016 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef __IIO_SW_DEVICE diff --git a/include/linux/iio/sw_trigger.h b/include/linux/iio/sw_trigger.h index 0c43738a9e24..47de2443e984 100644 --- a/include/linux/iio/sw_trigger.h +++ b/include/linux/iio/sw_trigger.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Industrial I/O software trigger interface * * Copyright (c) 2015 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef __IIO_SW_TRIGGER diff --git a/include/linux/iio/sysfs.h b/include/linux/iio/sysfs.h index ce9426c507fd..b532c875bc24 100644 --- a/include/linux/iio/sysfs.h +++ b/include/linux/iio/sysfs.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* The industrial I/O core * *Copyright (c) 2008 Jonathan Cameron * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * * General attributes */ diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h index b19b7204ef84..84995e2967ac 100644 --- a/include/linux/iio/trigger.h +++ b/include/linux/iio/trigger.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* The industrial I/O core, trigger handling functions * * Copyright (c) 2008 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include #include diff --git a/include/linux/iio/trigger_consumer.h b/include/linux/iio/trigger_consumer.h index c4f8c7409666..c3c6ba5ec423 100644 --- a/include/linux/iio/trigger_consumer.h +++ b/include/linux/iio/trigger_consumer.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* The industrial I/O core, trigger consumer functions * * Copyright (c) 2008-2011 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef __LINUX_IIO_TRIGGER_CONSUMER_H__ diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h index 6eb3d683ef62..fa824e160f35 100644 --- a/include/linux/iio/types.h +++ b/include/linux/iio/types.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* industrial I/O data types needed both in and out of kernel * * Copyright (c) 2008 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _IIO_TYPES_H_ diff --git a/include/linux/input-polldev.h b/include/linux/input-polldev.h index 2465182670db..14821fd231c0 100644 --- a/include/linux/input-polldev.h +++ b/include/linux/input-polldev.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _INPUT_POLLDEV_H #define _INPUT_POLLDEV_H /* * Copyright (c) 2007 Dmitry Torokhov - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include diff --git a/include/linux/input.h b/include/linux/input.h index 7c7516eb7d76..510e78558c10 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 1999-2002 Vojtech Pavlik - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _INPUT_H #define _INPUT_H diff --git a/include/linux/input/as5011.h b/include/linux/input/as5011.h index 1affd0ddfa9d..5fba52a56cd6 100644 --- a/include/linux/input/as5011.h +++ b/include/linux/input/as5011.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _AS5011_H #define _AS5011_H /* * Copyright (c) 2010, 2011 Fabien Marteau - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ struct as5011_platform_data { diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h index 3f4bf60b0bb5..9e409bb13642 100644 --- a/include/linux/input/mt.h +++ b/include/linux/input/mt.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _INPUT_MT_H #define _INPUT_MT_H @@ -5,10 +6,6 @@ * Input Multitouch Library * * Copyright (c) 2010 Henrik Rydberg - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include diff --git a/include/linux/input/navpoint.h b/include/linux/input/navpoint.h index 45050eb34de3..d464ffb4db52 100644 --- a/include/linux/input/navpoint.h +++ b/include/linux/input/navpoint.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 Paul Parsons - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ struct navpoint_platform_data { diff --git a/include/linux/input/sparse-keymap.h b/include/linux/input/sparse-keymap.h index c7346e33d958..d25d1452dc6e 100644 --- a/include/linux/input/sparse-keymap.h +++ b/include/linux/input/sparse-keymap.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _SPARSE_KEYMAP_H #define _SPARSE_KEYMAP_H /* * Copyright (c) 2009 Dmitry Torokhov - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #define KE_END 0 /* Indicates end of keymap */ diff --git a/include/linux/input/touchscreen.h b/include/linux/input/touchscreen.h index 09d22ccb9e41..fe66e2b58f62 100644 --- a/include/linux/input/touchscreen.h +++ b/include/linux/input/touchscreen.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2014 Sebastian Reichel - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _TOUCHSCREEN_H diff --git a/include/linux/irqbypass.h b/include/linux/irqbypass.h index f0f5d2671509..9bdb2a781841 100644 --- a/include/linux/irqbypass.h +++ b/include/linux/irqbypass.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * IRQ offload/bypass manager * * Copyright (C) 2015 Red Hat, Inc. * Copyright (c) 2015 Linaro Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef IRQBYPASS_H #define IRQBYPASS_H diff --git a/include/linux/irqchip/arm-gic-common.h b/include/linux/irqchip/arm-gic-common.h index 9a1a479a2bf4..626283858563 100644 --- a/include/linux/irqchip/arm-gic-common.h +++ b/include/linux/irqchip/arm-gic-common.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/irqchip/arm-gic-common.h * * Copyright (C) 2016 ARM Limited, All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_IRQCHIP_ARM_GIC_COMMON_H #define __LINUX_IRQCHIP_ARM_GIC_COMMON_H diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h index 0f049b384ccd..316087da1d09 100644 --- a/include/linux/irqchip/arm-gic.h +++ b/include/linux/irqchip/arm-gic.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/irqchip/arm-gic.h * * Copyright (C) 2002 ARM Limited, All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_IRQCHIP_ARM_GIC_H #define __LINUX_IRQCHIP_ARM_GIC_H diff --git a/include/linux/irqchip/irq-sa11x0.h b/include/linux/irqchip/irq-sa11x0.h index 15db6829c1e4..68fd2d73b683 100644 --- a/include/linux/irqchip/irq-sa11x0.h +++ b/include/linux/irqchip/irq-sa11x0.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Generic IRQ handling for the SA11x0. * * Copyright (C) 2015 Dmitry Eremin-Solenikov * Copyright (C) 1999-2001 Nicolas Pitre - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __INCLUDE_LINUX_IRQCHIP_IRQ_SA11x0_H diff --git a/include/linux/irqchip/mxs.h b/include/linux/irqchip/mxs.h index 9039a538a919..4f447e3f0f3a 100644 --- a/include/linux/irqchip/mxs.h +++ b/include/linux/irqchip/mxs.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2013 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_IRQCHIP_MXS_H diff --git a/include/linux/led-class-flash.h b/include/linux/led-class-flash.h index 700efaa9e115..f52713f0a269 100644 --- a/include/linux/led-class-flash.h +++ b/include/linux/led-class-flash.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * LED Flash class interface * * Copyright (C) 2015 Samsung Electronics Co., Ltd. * Author: Jacek Anaszewski - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __LINUX_FLASH_LEDS_H_INCLUDED #define __LINUX_FLASH_LEDS_H_INCLUDED diff --git a/include/linux/leds-bd2802.h b/include/linux/leds-bd2802.h index 42f854a1a199..dd93c8d787b4 100644 --- a/include/linux/leds-bd2802.h +++ b/include/linux/leds-bd2802.h @@ -1,15 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * leds-bd2802.h - RGB LED Driver * * Copyright (C) 2009 Samsung Electronics * Kim Kyuwon * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Datasheet: http://www.rohm.com/products/databook/driver/pdf/bd2802gu-e.pdf - * */ #ifndef _LEDS_BD2802_H_ #define _LEDS_BD2802_H_ diff --git a/include/linux/leds-lp3944.h b/include/linux/leds-lp3944.h index 2618aa9063bc..f681fefff281 100644 --- a/include/linux/leds-lp3944.h +++ b/include/linux/leds-lp3944.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * leds-lp3944.h - platform data structure for lp3944 led controller * * Copyright (C) 2009 Antonio Ospite - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __LINUX_LEDS_LP3944_H diff --git a/include/linux/leds-lp3952.h b/include/linux/leds-lp3952.h index 49b37ed8d456..937ae5f2eac9 100644 --- a/include/linux/leds-lp3952.h +++ b/include/linux/leds-lp3952.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * LED driver for TI lp3952 controller * * Copyright (C) 2016, DAQRI, LLC. * Author: Tony Makkiel - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef LEDS_LP3952_H_ diff --git a/include/linux/leds-regulator.h b/include/linux/leds-regulator.h index e2337a8c90b0..899f816073a1 100644 --- a/include/linux/leds-regulator.h +++ b/include/linux/leds-regulator.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * leds-regulator.h - platform data structure for regulator driven LEDs. * * Copyright (C) 2009 Antonio Ospite - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __LINUX_LEDS_REGULATOR_H diff --git a/include/linux/leds.h b/include/linux/leds.h index 78204650fe2a..9b2bf574a17a 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Driver model for leds and led triggers * * Copyright (C) 2005 John Lenz * Copyright (C) 2005 Richard Purdie - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __LINUX_LEDS_H_INCLUDED #define __LINUX_LEDS_H_INCLUDED diff --git a/include/linux/libps2.h b/include/linux/libps2.h index 5f18fe02ae37..53f7e4d0f4b7 100644 --- a/include/linux/libps2.h +++ b/include/linux/libps2.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _LIBPS2_H #define _LIBPS2_H /* * Copyright (C) 1999-2002 Vojtech Pavlik * Copyright (C) 2004 Dmitry Torokhov - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include diff --git a/include/linux/mailbox/brcm-message.h b/include/linux/mailbox/brcm-message.h index c20b4843fc2d..18da82115476 100644 --- a/include/linux/mailbox/brcm-message.h +++ b/include/linux/mailbox/brcm-message.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2016 Broadcom * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Common header for Broadcom mailbox messages which is shared across * Broadcom SoCs and Broadcom mailbox client drivers. */ diff --git a/include/linux/mailbox_client.h b/include/linux/mailbox_client.h index faa7da3c9c8b..65229a45590f 100644 --- a/include/linux/mailbox_client.h +++ b/include/linux/mailbox_client.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2013-2014 Linaro Ltd. * Author: Jassi Brar - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MAILBOX_CLIENT_H diff --git a/include/linux/mailbox_controller.h b/include/linux/mailbox_controller.h index 4994a438444c..36d6ce673503 100644 --- a/include/linux/mailbox_controller.h +++ b/include/linux/mailbox_controller.h @@ -1,8 +1,4 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef __MAILBOX_CONTROLLER_H #define __MAILBOX_CONTROLLER_H diff --git a/include/linux/max17040_battery.h b/include/linux/max17040_battery.h index ad97b06cf930..593602fc9317 100644 --- a/include/linux/max17040_battery.h +++ b/include/linux/max17040_battery.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2009 Samsung Electronics * Minkyu Kang - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MAX17040_BATTERY_H_ diff --git a/include/linux/mdev.h b/include/linux/mdev.h index 89a52fd5756e..0ce30ca78db0 100644 --- a/include/linux/mdev.h +++ b/include/linux/mdev.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Mediated device definition * * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. * Author: Neo Jia * Kirti Wankhede - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef MDEV_H diff --git a/include/linux/mdio.h b/include/linux/mdio.h index 9dc16d5705a1..e8242ad88c81 100644 --- a/include/linux/mdio.h +++ b/include/linux/mdio.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/mdio.h: definitions for MDIO (clause 45) transceivers * Copyright 2006-2009 Solarflare Communications Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. */ #ifndef __LINUX_MDIO_H__ #define __LINUX_MDIO_H__ diff --git a/include/linux/mem_encrypt.h b/include/linux/mem_encrypt.h index b310a9c18113..470bd53a89df 100644 --- a/include/linux/mem_encrypt.h +++ b/include/linux/mem_encrypt.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AMD Memory Encryption Support * * Copyright (C) 2016 Advanced Micro Devices, Inc. * * Author: Tom Lendacky - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MEM_ENCRYPT_H__ diff --git a/include/linux/memstick.h b/include/linux/memstick.h index 690c35a9d4cc..216a713bef7f 100644 --- a/include/linux/memstick.h +++ b/include/linux/memstick.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Sony MemoryStick support * * Copyright (C) 2007 Alex Dubov - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef _MEMSTICK_H diff --git a/include/linux/mfd/88pm80x.h b/include/linux/mfd/88pm80x.h index c118a7ec94d6..def5df6e74bf 100644 --- a/include/linux/mfd/88pm80x.h +++ b/include/linux/mfd/88pm80x.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Marvell 88PM80x Interface * * Copyright (C) 2012 Marvell International Ltd. * Qiao Zhou - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_MFD_88PM80X_H diff --git a/include/linux/mfd/88pm860x.h b/include/linux/mfd/88pm860x.h index cd97530205c2..473545a2c425 100644 --- a/include/linux/mfd/88pm860x.h +++ b/include/linux/mfd/88pm860x.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Marvell 88PM860x Interface * * Copyright (C) 2009 Marvell International Ltd. * Haojian Zhuang - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_MFD_88PM860X_H diff --git a/include/linux/mfd/abx500/ab8500-codec.h b/include/linux/mfd/abx500/ab8500-codec.h index d7079413def0..c19f505122ac 100644 --- a/include/linux/mfd/abx500/ab8500-codec.h +++ b/include/linux/mfd/abx500/ab8500-codec.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) ST-Ericsson SA 2012 * @@ -5,10 +6,6 @@ * for ST-Ericsson. * * License terms: - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. */ #ifndef AB8500_CORE_CODEC_H diff --git a/include/linux/mfd/ac100.h b/include/linux/mfd/ac100.h index 3c148f196b9f..88005c3a1b2d 100644 --- a/include/linux/mfd/ac100.h +++ b/include/linux/mfd/ac100.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Functions and registers to access AC100 codec / RTC combo IC. * * Copyright (C) 2016 Chen-Yu Tsai * * Chen-Yu Tsai - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_MFD_AC100_H diff --git a/include/linux/mfd/arizona/core.h b/include/linux/mfd/arizona/core.h index b31b3be7f8c9..6d6f96b2b29f 100644 --- a/include/linux/mfd/arizona/core.h +++ b/include/linux/mfd/arizona/core.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Arizona MFD internals * * Copyright 2012 Wolfson Microelectronics plc * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _WM_ARIZONA_CORE_H diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 0013075d4cda..2d13bbea4f3a 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Platform data for Arizona devices * * Copyright 2012 Wolfson Microelectronics. PLC. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _ARIZONA_PDATA_H diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h index 0d06c5d0af93..bb1a2530ae27 100644 --- a/include/linux/mfd/arizona/registers.h +++ b/include/linux/mfd/arizona/registers.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ARIZONA register definitions * * Copyright 2012 Wolfson Microelectronics plc * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _ARIZONA_REGISTERS_H diff --git a/include/linux/mfd/asic3.h b/include/linux/mfd/asic3.h index e1148d037e7b..61e686dbaa74 100644 --- a/include/linux/mfd/asic3.h +++ b/include/linux/mfd/asic3.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/mfd/asic3.h * * Compaq ASIC3 headers. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Copyright 2001 Compaq Computer Corporation. * Copyright 2007-2008 OpenedHand Ltd. */ diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h index a353cd22b388..fd5957c042da 100644 --- a/include/linux/mfd/axp20x.h +++ b/include/linux/mfd/axp20x.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Functions and registers to access AXP20X power management chip. * * Copyright (C) 2013, Carlo Caione - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_MFD_AXP20X_H diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h index 99c0395fe1f9..b43fc5773ad7 100644 --- a/include/linux/mfd/core.h +++ b/include/linux/mfd/core.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * drivers/mfd/mfd-core.h * * core MFD support * Copyright (c) 2006 Ian Molton * Copyright (c) 2007 Dmitry Baryshkov - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef MFD_CORE_H diff --git a/include/linux/mfd/hi6421-pmic.h b/include/linux/mfd/hi6421-pmic.h index 2580c08db7b1..bbc64484c021 100644 --- a/include/linux/mfd/hi6421-pmic.h +++ b/include/linux/mfd/hi6421-pmic.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Header file for device driver Hi6421 PMIC * @@ -7,10 +8,6 @@ * http://www.linaro.org * * Author: Guodong Xu - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __HI6421_PMIC_H diff --git a/include/linux/mfd/hi655x-pmic.h b/include/linux/mfd/hi655x-pmic.h index 62f03c2b1bb0..b06171322178 100644 --- a/include/linux/mfd/hi655x-pmic.h +++ b/include/linux/mfd/hi655x-pmic.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Device driver for regulators in hi655x IC * @@ -6,10 +7,6 @@ * Authors: * Chen Feng * Fei Wang - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __HI655X_PMIC_H diff --git a/include/linux/mfd/lp3943.h b/include/linux/mfd/lp3943.h index 3490db782988..020a339f96e8 100644 --- a/include/linux/mfd/lp3943.h +++ b/include/linux/mfd/lp3943.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * TI/National Semiconductor LP3943 Device * * Copyright 2013 Texas Instruments * * Author: Milo Kim - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __MFD_LP3943_H__ diff --git a/include/linux/mfd/lp8788-isink.h b/include/linux/mfd/lp8788-isink.h index f38262d21ff1..464dc4c937e4 100644 --- a/include/linux/mfd/lp8788-isink.h +++ b/include/linux/mfd/lp8788-isink.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * TI LP8788 MFD - common definitions for current sinks * * Copyright 2012 Texas Instruments * * Author: Milo(Woogyom) Kim - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __ISINK_LP8788_H__ diff --git a/include/linux/mfd/lp8788.h b/include/linux/mfd/lp8788.h index 2010e0de3e34..3d5c480d58ea 100644 --- a/include/linux/mfd/lp8788.h +++ b/include/linux/mfd/lp8788.h @@ -1,14 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * TI LP8788 MFD Device * * Copyright 2012 Texas Instruments * * Author: Milo(Woogyom) Kim - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __MFD_LP8788_H__ diff --git a/include/linux/mfd/max8907.h b/include/linux/mfd/max8907.h index b06f7a6a1e80..4be3c2370e2a 100644 --- a/include/linux/mfd/max8907.h +++ b/include/linux/mfd/max8907.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Functions to access MAX8907 power management chip. * * Copyright (C) 2010 Gyungoh Yoo * Copyright (C) 2012, NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_MFD_MAX8907_H diff --git a/include/linux/mfd/max8925.h b/include/linux/mfd/max8925.h index ce8502e9e7dc..07f9af579fb9 100644 --- a/include/linux/mfd/max8925.h +++ b/include/linux/mfd/max8925.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Maxim8925 Interface * * Copyright (C) 2009 Marvell International Ltd. * Haojian Zhuang - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_MFD_MAX8925_H diff --git a/include/linux/mfd/mc13783.h b/include/linux/mfd/mc13783.h index 4ff6137d8d67..c25b1676741b 100644 --- a/include/linux/mfd/mc13783.h +++ b/include/linux/mfd/mc13783.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2010 Yong Shen * Copyright 2009-2010 Pengutronix * Uwe Kleine-Koenig - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. */ #ifndef __LINUX_MFD_MC13783_H #define __LINUX_MFD_MC13783_H diff --git a/include/linux/mfd/mc13892.h b/include/linux/mfd/mc13892.h index a00f2bec178c..880cd949d12a 100644 --- a/include/linux/mfd/mc13892.h +++ b/include/linux/mfd/mc13892.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2010 Yong Shen - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. */ #ifndef __LINUX_MFD_MC13892_H diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h index 2ad9bdc0a5ec..f372926d5894 100644 --- a/include/linux/mfd/mc13xxx.h +++ b/include/linux/mfd/mc13xxx.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2009-2010 Pengutronix * Uwe Kleine-Koenig - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. */ #ifndef __LINUX_MFD_MC13XXX_H #define __LINUX_MFD_MC13XXX_H diff --git a/include/linux/mfd/motorola-cpcap.h b/include/linux/mfd/motorola-cpcap.h index aefc49cb7ba9..981e5777deb7 100644 --- a/include/linux/mfd/motorola-cpcap.h +++ b/include/linux/mfd/motorola-cpcap.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * The register defines are based on earlier cpcap.h in Motorola Linux kernel * tree. @@ -8,10 +9,6 @@ * to make the defines usable with Linux kernel regmap support * * Copyright (C) 2016 Tony Lindgren - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include diff --git a/include/linux/mfd/mt6323/core.h b/include/linux/mfd/mt6323/core.h index 06d0ec3b1f8f..2becc3443179 100644 --- a/include/linux/mfd/mt6323/core.h +++ b/include/linux/mfd/mt6323/core.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2016 Chen Zhong - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MFD_MT6323_CORE_H__ diff --git a/include/linux/mfd/mt6323/registers.h b/include/linux/mfd/mt6323/registers.h index 160f3c0e2589..4455e57544eb 100644 --- a/include/linux/mfd/mt6323/registers.h +++ b/include/linux/mfd/mt6323/registers.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2016 Chen Zhong - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MFD_MT6323_REGISTERS_H__ diff --git a/include/linux/mfd/sun4i-gpadc.h b/include/linux/mfd/sun4i-gpadc.h index 139872c2e0fe..ea0ccf33a459 100644 --- a/include/linux/mfd/sun4i-gpadc.h +++ b/include/linux/mfd/sun4i-gpadc.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* Header of ADC MFD core driver for sunxi platforms * * Copyright (c) 2016 Quentin Schulz - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. */ #ifndef __SUN4I_GPADC__H__ diff --git a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h index f232c8130d00..d4b5e527a7a3 100644 --- a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h +++ b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_IMX6Q_IOMUXC_GPR_H diff --git a/include/linux/mfd/syscon/imx7-iomuxc-gpr.h b/include/linux/mfd/syscon/imx7-iomuxc-gpr.h index abbd52466573..3d46907bab89 100644 --- a/include/linux/mfd/syscon/imx7-iomuxc-gpr.h +++ b/include/linux/mfd/syscon/imx7-iomuxc-gpr.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2015 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_IMX7_IOMUXC_GPR_H diff --git a/include/linux/mfd/t7l66xb.h b/include/linux/mfd/t7l66xb.h index b4629818aea5..69632c1b07bd 100644 --- a/include/linux/mfd/t7l66xb.h +++ b/include/linux/mfd/t7l66xb.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * This file contains the definitions for the T7L66XB * * (C) Copyright 2005 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef MFD_T7L66XB_H #define MFD_T7L66XB_H diff --git a/include/linux/mfd/tc6393xb.h b/include/linux/mfd/tc6393xb.h index 626e448205c5..fcc8e74f0e8d 100644 --- a/include/linux/mfd/tc6393xb.h +++ b/include/linux/mfd/tc6393xb.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Toshiba TC6393XB SoC support * @@ -8,10 +9,6 @@ * * Based on code written by Sharp/Lineo for 2.4 kernels * Based on locomo.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef MFD_TC6393XB_H diff --git a/include/linux/mfd/ti-lmu-register.h b/include/linux/mfd/ti-lmu-register.h index f09510561a55..222cb14c5b0f 100644 --- a/include/linux/mfd/ti-lmu-register.h +++ b/include/linux/mfd/ti-lmu-register.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * TI LMU (Lighting Management Unit) Device Register Map * * Copyright 2017 Texas Instruments * * Author: Milo Kim - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MFD_TI_LMU_REGISTER_H__ diff --git a/include/linux/mfd/ti-lmu.h b/include/linux/mfd/ti-lmu.h index 7762c1bce55d..7d1e9c24f818 100644 --- a/include/linux/mfd/ti-lmu.h +++ b/include/linux/mfd/ti-lmu.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * TI LMU (Lighting Management Unit) Devices * * Copyright 2017 Texas Instruments * * Author: Milo Kim - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MFD_TI_LMU_H__ diff --git a/include/linux/mm-arch-hooks.h b/include/linux/mm-arch-hooks.h index 4efc3f56e6df..9c4bedc95504 100644 --- a/include/linux/mm-arch-hooks.h +++ b/include/linux/mm-arch-hooks.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Generic mm no-op hooks. * * Copyright (C) 2015, IBM Corporation * Author: Laurent Dufour - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _LINUX_MM_ARCH_HOOKS_H #define _LINUX_MM_ARCH_HOOKS_H diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 19566ab9decb..9b6336ad3266 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/mmc/card.h * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Card driver specific definitions. */ #ifndef LINUX_MMC_CARD_H diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h index 134a6483347a..b7ba8810a3b5 100644 --- a/include/linux/mmc/core.h +++ b/include/linux/mmc/core.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/mmc/core.h - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef LINUX_MMC_CORE_H #define LINUX_MMC_CORE_H diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 43d0f0c496f6..00fe0b3d2039 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/mmc/host.h * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Host driver specific definitions. */ #ifndef LINUX_MMC_HOST_H diff --git a/include/linux/mmc/pm.h b/include/linux/mmc/pm.h index 4a139204c20c..3549f8045784 100644 --- a/include/linux/mmc/pm.h +++ b/include/linux/mmc/pm.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/mmc/pm.h * * Author: Nicolas Pitre * Copyright: (C) 2009 Marvell Technology Group Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef LINUX_MMC_PM_H diff --git a/include/linux/mmc/slot-gpio.h b/include/linux/mmc/slot-gpio.h index 9fd3ce64a885..0de3d7c016cd 100644 --- a/include/linux/mmc/slot-gpio.h +++ b/include/linux/mmc/slot-gpio.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Generic GPIO card-detect helper header * * Copyright (C) 2011, Guennadi Liakhovetski - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef MMC_SLOT_GPIO_H diff --git a/include/linux/mtd/lpc32xx_mlc.h b/include/linux/mtd/lpc32xx_mlc.h index d91b1e35631e..d168c628c0d5 100644 --- a/include/linux/mtd/lpc32xx_mlc.h +++ b/include/linux/mtd/lpc32xx_mlc.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Platform data for LPC32xx SoC MLC NAND controller * * Copyright © 2012 Roland Stigge - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_MTD_LPC32XX_MLC_H diff --git a/include/linux/mtd/lpc32xx_slc.h b/include/linux/mtd/lpc32xx_slc.h index 1169548a1535..cf54a9f80460 100644 --- a/include/linux/mtd/lpc32xx_slc.h +++ b/include/linux/mtd/lpc32xx_slc.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Platform data for LPC32xx SoC SLC NAND controller * * Copyright © 2012 Roland Stigge - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_MTD_LPC32XX_SLC_H diff --git a/include/linux/mtd/nand_bch.h b/include/linux/mtd/nand_bch.h index a8a6909b594e..d5956cc48ba9 100644 --- a/include/linux/mtd/nand_bch.h +++ b/include/linux/mtd/nand_bch.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright © 2011 Ivan Djelic * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * This file is the header for the NAND BCH ECC implementation. */ diff --git a/include/linux/mtd/nand_ecc.h b/include/linux/mtd/nand_ecc.h index 0b3bb156c344..d423916b94f0 100644 --- a/include/linux/mtd/nand_ecc.h +++ b/include/linux/mtd/nand_ecc.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2000-2010 Steven J. Hill * David Woodhouse * Thomas Gleixner * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * This file is the header for the ECC algorithm. */ diff --git a/include/linux/mtd/ndfc.h b/include/linux/mtd/ndfc.h index 357e88b3263a..98f075b86931 100644 --- a/include/linux/mtd/ndfc.h +++ b/include/linux/mtd/ndfc.h @@ -1,13 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2006 Thomas Gleixner * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Info: * Contains defines, datastructures for ndfc nand controller - * */ #ifndef __LINUX_MTD_NDFC_H #define __LINUX_MTD_NDFC_H diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h index bfe9e10fae04..1e517961d0ba 100644 --- a/include/linux/mtd/onenand.h +++ b/include/linux/mtd/onenand.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/mtd/onenand.h * * Copyright © 2005-2009 Samsung Electronics * Kyungmin Park - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_MTD_ONENAND_H diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h index d60130f88eed..2d12a1b18742 100644 --- a/include/linux/mtd/onenand_regs.h +++ b/include/linux/mtd/onenand_regs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/mtd/onenand_regs.h * @@ -5,10 +6,6 @@ * * Copyright (C) 2005-2007 Samsung Electronics * Kyungmin Park - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __ONENAND_REG_H diff --git a/include/linux/mtd/plat-ram.h b/include/linux/mtd/plat-ram.h index 44212d65aa97..09441856d244 100644 --- a/include/linux/mtd/plat-ram.h +++ b/include/linux/mtd/plat-ram.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* linux/include/linux/mtd/plat-ram.h * * (c) 2004 Simtec Electronics @@ -5,11 +6,6 @@ * Ben Dooks * * Generic platform device based RAM map - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __LINUX_MTD_PLATRAM_H diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index dbfffa5bec7b..ac3884a28dea 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright © 2000-2010 David Woodhouse * Steven J. Hill * Thomas Gleixner * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Info: * Contains standard defines and IDs for NAND flash devices * diff --git a/include/linux/mtd/sharpsl.h b/include/linux/mtd/sharpsl.h index e1845fc4afbd..01306ebe266d 100644 --- a/include/linux/mtd/sharpsl.h +++ b/include/linux/mtd/sharpsl.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * SharpSL NAND support * * Copyright (C) 2008 Dmitry Baryshkov - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include diff --git a/include/linux/mtd/xip.h b/include/linux/mtd/xip.h index e373690cce0a..a4e352b1dfe6 100644 --- a/include/linux/mtd/xip.h +++ b/include/linux/mtd/xip.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MTD primitives for XIP support * @@ -7,10 +8,6 @@ * * This XIP support for MTD has been loosely inspired * by an earlier patch authored by David Woodhouse. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_MTD_XIP_H__ diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h index e499d170f12d..f5e03809cdb2 100644 --- a/include/linux/netfilter/ipset/ip_set.h +++ b/include/linux/netfilter/ipset/ip_set.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright (C) 2000-2002 Joakim Axelsson * Patrick Schaaf * Martin Josefsson * Copyright (C) 2003-2013 Jozsef Kadlecsik - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _IP_SET_H #define _IP_SET_H diff --git a/include/linux/netfilter/ipset/ip_set_comment.h b/include/linux/netfilter/ipset/ip_set_comment.h index 70877f8de7e9..0b894d81bbf2 100644 --- a/include/linux/netfilter/ipset/ip_set_comment.h +++ b/include/linux/netfilter/ipset/ip_set_comment.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _IP_SET_COMMENT_H #define _IP_SET_COMMENT_H /* Copyright (C) 2013 Oliver Smith - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifdef __KERNEL__ diff --git a/include/linux/netfilter/ipset/ip_set_counter.h b/include/linux/netfilter/ipset/ip_set_counter.h index 3d33a2c3f39f..5477492c8374 100644 --- a/include/linux/netfilter/ipset/ip_set_counter.h +++ b/include/linux/netfilter/ipset/ip_set_counter.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _IP_SET_COUNTER_H #define _IP_SET_COUNTER_H /* Copyright (C) 2015 Jozsef Kadlecsik - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifdef __KERNEL__ diff --git a/include/linux/netfilter/ipset/ip_set_skbinfo.h b/include/linux/netfilter/ipset/ip_set_skbinfo.h index 29d7ef2bc3fa..aae081e085c6 100644 --- a/include/linux/netfilter/ipset/ip_set_skbinfo.h +++ b/include/linux/netfilter/ipset/ip_set_skbinfo.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _IP_SET_SKBINFO_H #define _IP_SET_SKBINFO_H /* Copyright (C) 2015 Jozsef Kadlecsik - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifdef __KERNEL__ diff --git a/include/linux/netfilter/ipset/ip_set_timeout.h b/include/linux/netfilter/ipset/ip_set_timeout.h index 8ce271e187b6..88926b4c75f0 100644 --- a/include/linux/netfilter/ipset/ip_set_timeout.h +++ b/include/linux/netfilter/ipset/ip_set_timeout.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _IP_SET_TIMEOUT_H #define _IP_SET_TIMEOUT_H /* Copyright (C) 2003-2013 Jozsef Kadlecsik - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifdef __KERNEL__ diff --git a/include/linux/omap-dmaengine.h b/include/linux/omap-dmaengine.h index 8e6906c72e90..b6e42f933c40 100644 --- a/include/linux/omap-dmaengine.h +++ b/include/linux/omap-dmaengine.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * OMAP DMA Engine support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_OMAP_DMAENGINE_H #define __LINUX_OMAP_DMAENGINE_H diff --git a/include/linux/omap-iommu.h b/include/linux/omap-iommu.h index ce1b7c6283ee..153bf25b4df3 100644 --- a/include/linux/omap-iommu.h +++ b/include/linux/omap-iommu.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * omap iommu: simple virtual address space management * * Copyright (C) 2008-2009 Nokia Corporation * * Written by Hiroshi DOYU - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _OMAP_IOMMU_H_ diff --git a/include/linux/pda_power.h b/include/linux/pda_power.h index 2bb62bf296ac..2a69db4b60b7 100644 --- a/include/linux/pda_power.h +++ b/include/linux/pda_power.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Common power driver for PDAs and phones with one or two external * power supplies (AC/USB) connected to main and backup batteries, * and optional builtin charger. * * Copyright © 2007 Anton Vorontsov - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __PDA_POWER_H__ diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h index 4641e850b204..a9b0ee408fbd 100644 --- a/include/linux/perf/arm_pmu.h +++ b/include/linux/perf/arm_pmu.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/arch/arm/include/asm/pmu.h * * Copyright (C) 2009 picoChip Designs Ltd, Jamie Iles - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __ARM_PMU_H__ diff --git a/include/linux/platform_data/ads7828.h b/include/linux/platform_data/ads7828.h index a3370a007702..0fa4186c6171 100644 --- a/include/linux/platform_data/ads7828.h +++ b/include/linux/platform_data/ads7828.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * TI ADS7828 A/D Converter platform data definition * @@ -5,10 +6,6 @@ * Vivien Didelot * * For further information, see the Documentation/hwmon/ads7828.rst file. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _PDATA_ADS7828_H diff --git a/include/linux/platform_data/asoc-s3c.h b/include/linux/platform_data/asoc-s3c.h index 90641a5daaf0..f9c00f839e9f 100644 --- a/include/linux/platform_data/asoc-s3c.h +++ b/include/linux/platform_data/asoc-s3c.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2009 Samsung Electronics Co. Ltd * Author: Jaswinder Singh - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ /* The machine init code calls s3c*_ac97_setup_gpio with diff --git a/include/linux/platform_data/asoc-s3c24xx_simtec.h b/include/linux/platform_data/asoc-s3c24xx_simtec.h index d220e54123aa..1a7efc98d108 100644 --- a/include/linux/platform_data/asoc-s3c24xx_simtec.h +++ b/include/linux/platform_data/asoc-s3c24xx_simtec.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2008 Simtec Electronics * http://armlinux.simtec.co.uk/ * Ben Dooks * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Simtec Audio support. */ diff --git a/include/linux/platform_data/ata-samsung_cf.h b/include/linux/platform_data/ata-samsung_cf.h index 748e71642c4a..fccf969dc4da 100644 --- a/include/linux/platform_data/ata-samsung_cf.h +++ b/include/linux/platform_data/ata-samsung_cf.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2010 Samsung Electronics Co., Ltd. * http://www.samsung.com * * Samsung CF-ATA platform_device info - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __ATA_SAMSUNG_CF_H diff --git a/include/linux/platform_data/bd6107.h b/include/linux/platform_data/bd6107.h index 671d6502d241..3bd019037eb3 100644 --- a/include/linux/platform_data/bd6107.h +++ b/include/linux/platform_data/bd6107.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * bd6107.h - Rohm BD6107 LEDs Driver - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __BD6107_H__ #define __BD6107_H__ diff --git a/include/linux/platform_data/cpuidle-exynos.h b/include/linux/platform_data/cpuidle-exynos.h index bfa40e4c5d5f..075cbf0302a5 100644 --- a/include/linux/platform_data/cpuidle-exynos.h +++ b/include/linux/platform_data/cpuidle-exynos.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2014 Samsung Electronics Co., Ltd. * http://www.samsung.com - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __CPUIDLE_EXYNOS_H diff --git a/include/linux/platform_data/dma-hsu.h b/include/linux/platform_data/dma-hsu.h index 3453fa655502..c65b412b2b33 100644 --- a/include/linux/platform_data/dma-hsu.h +++ b/include/linux/platform_data/dma-hsu.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Driver for the High Speed UART DMA * * Copyright (C) 2015 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _PLATFORM_DATA_DMA_HSU_H diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h index 9daea8d42a10..80f9be858bd0 100644 --- a/include/linux/platform_data/dma-imx.h +++ b/include/linux/platform_data/dma-imx.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __ASM_ARCH_MXC_DMA_H__ diff --git a/include/linux/platform_data/dma-mmp_tdma.h b/include/linux/platform_data/dma-mmp_tdma.h index 422d4504dbac..8bec5484dc86 100644 --- a/include/linux/platform_data/dma-mmp_tdma.h +++ b/include/linux/platform_data/dma-mmp_tdma.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * SRAM Memory Management * * Copyright (c) 2011 Marvell Semiconductors Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __DMA_MMP_TDMA_H diff --git a/include/linux/platform_data/emif_plat.h b/include/linux/platform_data/emif_plat.h index 5c19a2a647c4..b93feef5d586 100644 --- a/include/linux/platform_data/emif_plat.h +++ b/include/linux/platform_data/emif_plat.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Definitions for TI EMIF device platform data * * Copyright (C) 2012 Texas Instruments, Inc. * * Aneesh V - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __EMIF_PLAT_H #define __EMIF_PLAT_H diff --git a/include/linux/platform_data/fsa9480.h b/include/linux/platform_data/fsa9480.h index 72dddcb4bed1..dea8d84448ec 100644 --- a/include/linux/platform_data/fsa9480.h +++ b/include/linux/platform_data/fsa9480.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2010 Samsung Electronics * Minkyu Kang - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _FSA9480_H_ diff --git a/include/linux/platform_data/gpio-ath79.h b/include/linux/platform_data/gpio-ath79.h index 88b0db7bee74..3ea6dd942c27 100644 --- a/include/linux/platform_data/gpio-ath79.h +++ b/include/linux/platform_data/gpio-ath79.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Atheros AR7XXX/AR9XXX GPIO controller platform data * * Copyright (C) 2015 Alban Bedel - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_PLATFORM_DATA_GPIO_ATH79_H diff --git a/include/linux/platform_data/gpio_backlight.h b/include/linux/platform_data/gpio_backlight.h index 683d90453c41..34179d600360 100644 --- a/include/linux/platform_data/gpio_backlight.h +++ b/include/linux/platform_data/gpio_backlight.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * gpio_backlight.h - Simple GPIO-controlled backlight - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __GPIO_BACKLIGHT_H__ #define __GPIO_BACKLIGHT_H__ diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h index 85da11916bd5..e79d238ff18f 100644 --- a/include/linux/platform_data/hsmmc-omap.h +++ b/include/linux/platform_data/hsmmc-omap.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MMC definitions for OMAP2 * * Copyright (C) 2006 Nokia Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ /* diff --git a/include/linux/platform_data/hwmon-s3c.h b/include/linux/platform_data/hwmon-s3c.h index 0e3cce130fe2..1707ad4147df 100644 --- a/include/linux/platform_data/hwmon-s3c.h +++ b/include/linux/platform_data/hwmon-s3c.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2005 Simtec Electronics * Ben Dooks * http://armlinux.simtec.co.uk/ * * S3C - HWMon interface for ADC - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __HWMON_S3C_H__ diff --git a/include/linux/platform_data/i2c-gpio.h b/include/linux/platform_data/i2c-gpio.h index 352c1426fd4d..a907774fd177 100644 --- a/include/linux/platform_data/i2c-gpio.h +++ b/include/linux/platform_data/i2c-gpio.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * i2c-gpio interface to platform code * * Copyright (C) 2007 Atmel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _LINUX_I2C_GPIO_H #define _LINUX_I2C_GPIO_H diff --git a/include/linux/platform_data/i2c-mux-gpio.h b/include/linux/platform_data/i2c-mux-gpio.h index 4406108201fe..9f6ca406505b 100644 --- a/include/linux/platform_data/i2c-mux-gpio.h +++ b/include/linux/platform_data/i2c-mux-gpio.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * i2c-mux-gpio interface to platform code * * Peter Korsgaard - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _LINUX_I2C_MUX_GPIO_H diff --git a/include/linux/platform_data/i2c-pxa.h b/include/linux/platform_data/i2c-pxa.h index 5236f216dfae..cb290092599c 100644 --- a/include/linux/platform_data/i2c-pxa.h +++ b/include/linux/platform_data/i2c-pxa.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * i2c_pxa.h * * Copyright (C) 2002 Intrinsyc Software Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef _I2C_PXA_H_ #define _I2C_PXA_H_ diff --git a/include/linux/platform_data/i2c-s3c2410.h b/include/linux/platform_data/i2c-s3c2410.h index 05af66b840b9..550746715139 100644 --- a/include/linux/platform_data/i2c-s3c2410.h +++ b/include/linux/platform_data/i2c-s3c2410.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2004-2009 Simtec Electronics * Ben Dooks * * S3C - I2C Controller platform_device info - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __I2C_S3C2410_H diff --git a/include/linux/platform_data/ina2xx.h b/include/linux/platform_data/ina2xx.h index dde59fd3590f..2aa5ee9a9050 100644 --- a/include/linux/platform_data/ina2xx.h +++ b/include/linux/platform_data/ina2xx.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Driver for Texas Instruments INA219, INA226 power monitor chips * * Copyright (C) 2012 Lothar Felten * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * For further information, see the Documentation/hwmon/ina2xx.rst file. */ diff --git a/include/linux/platform_data/intel-spi.h b/include/linux/platform_data/intel-spi.h index 942b0c3f8f08..ebb4f332588b 100644 --- a/include/linux/platform_data/intel-spi.h +++ b/include/linux/platform_data/intel-spi.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Intel PCH/PCU SPI flash driver. * * Copyright (C) 2016, Intel Corporation * Author: Mika Westerberg - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef INTEL_SPI_PDATA_H diff --git a/include/linux/platform_data/iommu-omap.h b/include/linux/platform_data/iommu-omap.h index e8b12dbf6170..44d913a7580c 100644 --- a/include/linux/platform_data/iommu-omap.h +++ b/include/linux/platform_data/iommu-omap.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * omap iommu: main structures * * Copyright (C) 2008-2009 Nokia Corporation * * Written by Hiroshi DOYU - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include diff --git a/include/linux/platform_data/irda-sa11x0.h b/include/linux/platform_data/irda-sa11x0.h index 38f77b5e56cf..7db59c917575 100644 --- a/include/linux/platform_data/irda-sa11x0.h +++ b/include/linux/platform_data/irda-sa11x0.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * arch/arm/include/asm/mach/irda.h * * Copyright (C) 2004 Russell King. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __ASM_ARM_MACH_IRDA_H #define __ASM_ARM_MACH_IRDA_H diff --git a/include/linux/platform_data/keypad-omap.h b/include/linux/platform_data/keypad-omap.h index c3a3abae98f0..3e7c64c854f4 100644 --- a/include/linux/platform_data/keypad-omap.h +++ b/include/linux/platform_data/keypad-omap.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2006 Komal Shah - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __KEYPAD_OMAP_H #define __KEYPAD_OMAP_H diff --git a/include/linux/platform_data/leds-lp55xx.h b/include/linux/platform_data/leds-lp55xx.h index 624ff9edad6f..96a787100fda 100644 --- a/include/linux/platform_data/leds-lp55xx.h +++ b/include/linux/platform_data/leds-lp55xx.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * LP55XX Platform Data Header * @@ -5,10 +6,6 @@ * * Author: Milo(Woogyom) Kim * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * * Derived from leds-lp5521.h, leds-lp5523.h */ diff --git a/include/linux/platform_data/leds-omap.h b/include/linux/platform_data/leds-omap.h index 56c9b2a0ada5..dd1a3ec86fe4 100644 --- a/include/linux/platform_data/leds-omap.h +++ b/include/linux/platform_data/leds-omap.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2006 Samsung Electronics * Kyungmin Park - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef ASMARM_ARCH_LED_H #define ASMARM_ARCH_LED_H diff --git a/include/linux/platform_data/leds-s3c24xx.h b/include/linux/platform_data/leds-s3c24xx.h index 441a6f290649..5bbae85811e2 100644 --- a/include/linux/platform_data/leds-s3c24xx.h +++ b/include/linux/platform_data/leds-s3c24xx.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2006 Simtec Electronics * http://armlinux.simtec.co.uk/ * Ben Dooks * * S3C24XX - LEDs GPIO connector - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LEDS_S3C24XX_H diff --git a/include/linux/platform_data/lm3630a_bl.h b/include/linux/platform_data/lm3630a_bl.h index 762e68956f31..530be9318711 100644 --- a/include/linux/platform_data/lm3630a_bl.h +++ b/include/linux/platform_data/lm3630a_bl.h @@ -1,11 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Simple driver for Texas Instruments LM3630A LED Flash driver chip * Copyright (C) 2012 Texas Instruments -* -* This program is free software; you can redistribute it and/or modify -* it under the terms of the GNU General Public License version 2 as -* published by the Free Software Foundation. -* */ #ifndef __LINUX_LM3630A_H diff --git a/include/linux/platform_data/lm3639_bl.h b/include/linux/platform_data/lm3639_bl.h index 5234cd5ed166..341f24051db4 100644 --- a/include/linux/platform_data/lm3639_bl.h +++ b/include/linux/platform_data/lm3639_bl.h @@ -1,11 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Simple driver for Texas Instruments LM3630 LED Flash driver chip * Copyright (C) 2012 Texas Instruments -* -* This program is free software; you can redistribute it and/or modify -* it under the terms of the GNU General Public License version 2 as -* published by the Free Software Foundation. -* */ #ifndef __LINUX_LM3639_H diff --git a/include/linux/platform_data/lp855x.h b/include/linux/platform_data/lp855x.h index 1b2ba24e4e03..ab222dd05bbc 100644 --- a/include/linux/platform_data/lp855x.h +++ b/include/linux/platform_data/lp855x.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * LP855x Backlight Driver * * Copyright (C) 2011 Texas Instruments - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef _LP855X_H diff --git a/include/linux/platform_data/lp8727.h b/include/linux/platform_data/lp8727.h index 47128a50e04e..c701a7b96f0b 100644 --- a/include/linux/platform_data/lp8727.h +++ b/include/linux/platform_data/lp8727.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * LP8727 Micro/Mini USB IC with integrated charger * * Copyright (C) 2011 Texas Instruments * Copyright (C) 2011 National Semiconductor - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _LP8727_H diff --git a/include/linux/platform_data/lp8755.h b/include/linux/platform_data/lp8755.h index a7fd0776c9bf..7bf4221d62dd 100644 --- a/include/linux/platform_data/lp8755.h +++ b/include/linux/platform_data/lp8755.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * LP8755 High Performance Power Management Unit Driver:System Interface Driver * @@ -5,11 +6,6 @@ * * Author: Daniel(Geon Si) Jeong * G.Shark Jeong - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef _LP8755_H diff --git a/include/linux/platform_data/lv5207lp.h b/include/linux/platform_data/lv5207lp.h index 7dc4d9a219a6..c9da8d402750 100644 --- a/include/linux/platform_data/lv5207lp.h +++ b/include/linux/platform_data/lv5207lp.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * lv5207lp.h - Sanyo LV5207LP LEDs Driver - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LV5207LP_H__ #define __LV5207LP_H__ diff --git a/include/linux/platform_data/macb.h b/include/linux/platform_data/macb.h index 2bc51b822956..aa5b5562d6f7 100644 --- a/include/linux/platform_data/macb.h +++ b/include/linux/platform_data/macb.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2004-2006 Atmel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MACB_PDATA_H__ #define __MACB_PDATA_H__ diff --git a/include/linux/platform_data/max197.h b/include/linux/platform_data/max197.h index 2bbd0919bc89..03ef46f9cd65 100644 --- a/include/linux/platform_data/max197.h +++ b/include/linux/platform_data/max197.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Maxim MAX197 A/D Converter Driver * * Copyright (c) 2012 Savoir-faire Linux Inc. * Vivien Didelot * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * For further information, see the Documentation/hwmon/max197.rst file. */ diff --git a/include/linux/platform_data/max6697.h b/include/linux/platform_data/max6697.h index ed9d3b3daf02..6fbb70005541 100644 --- a/include/linux/platform_data/max6697.h +++ b/include/linux/platform_data/max6697.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * max6697.h * Copyright (c) 2012 Guenter Roeck - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef MAX6697_H diff --git a/include/linux/platform_data/media/omap1_camera.h b/include/linux/platform_data/media/omap1_camera.h index 819767cf04d4..386439db68de 100644 --- a/include/linux/platform_data/media/omap1_camera.h +++ b/include/linux/platform_data/media/omap1_camera.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Header for V4L2 SoC Camera driver for OMAP1 Camera Interface * * Copyright (C) 2010, Janusz Krzysztofik - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MEDIA_OMAP1_CAMERA_H_ diff --git a/include/linux/platform_data/mfd-mcp-sa11x0.h b/include/linux/platform_data/mfd-mcp-sa11x0.h index 747cd6baf711..b589e61bbc2e 100644 --- a/include/linux/platform_data/mfd-mcp-sa11x0.h +++ b/include/linux/platform_data/mfd-mcp-sa11x0.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2005 Russell King. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MFD_MCP_SA11X0_H #define __MFD_MCP_SA11X0_H diff --git a/include/linux/platform_data/mmc-omap.h b/include/linux/platform_data/mmc-omap.h index 929469291406..9acf0e87aa9b 100644 --- a/include/linux/platform_data/mmc-omap.h +++ b/include/linux/platform_data/mmc-omap.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MMC definitions for OMAP2 * * Copyright (C) 2006 Nokia Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #define OMAP_MMC_MAX_SLOTS 2 diff --git a/include/linux/platform_data/mmp_audio.h b/include/linux/platform_data/mmp_audio.h index 0f25d165abd6..83428d8ee18d 100644 --- a/include/linux/platform_data/mmp_audio.h +++ b/include/linux/platform_data/mmp_audio.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MMP Platform AUDIO Management * * Copyright (c) 2011 Marvell Semiconductors Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef MMP_AUDIO_H diff --git a/include/linux/platform_data/mmp_dma.h b/include/linux/platform_data/mmp_dma.h index 6397b9c8149a..030241cb9cc1 100644 --- a/include/linux/platform_data/mmp_dma.h +++ b/include/linux/platform_data/mmp_dma.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MMP Platform DMA Management * * Copyright (c) 2011 Marvell Semiconductors Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef MMP_DMA_H diff --git a/include/linux/platform_data/mtd-nand-omap2.h b/include/linux/platform_data/mtd-nand-omap2.h index 619df2431e75..de6ada739121 100644 --- a/include/linux/platform_data/mtd-nand-omap2.h +++ b/include/linux/platform_data/mtd-nand-omap2.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2006 Micron Technology Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _MTD_NAND_OMAP2_H diff --git a/include/linux/platform_data/mtd-nand-s3c2410.h b/include/linux/platform_data/mtd-nand-s3c2410.h index f8c553f92655..deb849bcf0ec 100644 --- a/include/linux/platform_data/mtd-nand-s3c2410.h +++ b/include/linux/platform_data/mtd-nand-s3c2410.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2004 Simtec Electronics * Ben Dooks * * S3C2410 - NAND device controller platform_device info - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MTD_NAND_S3C2410_H diff --git a/include/linux/platform_data/pxa_sdhci.h b/include/linux/platform_data/pxa_sdhci.h index 4977c06d8a86..899457cee425 100644 --- a/include/linux/platform_data/pxa_sdhci.h +++ b/include/linux/platform_data/pxa_sdhci.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/platform_data/pxa_sdhci.h * @@ -5,10 +6,6 @@ * Zhangfei Gao * * PXA Platform - SDHCI platform data definitions - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _PXA_SDHCI_H_ diff --git a/include/linux/platform_data/regulator-haptic.h b/include/linux/platform_data/regulator-haptic.h index 5658e58e0738..4213e1b01316 100644 --- a/include/linux/platform_data/regulator-haptic.h +++ b/include/linux/platform_data/regulator-haptic.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Regulator Haptic Platform Data * * Copyright (c) 2014 Samsung Electronics Co., Ltd. * Author: Jaewon Kim * Author: Hyunhee Kim - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _REGULATOR_HAPTIC_H diff --git a/include/linux/platform_data/s3c-hsotg.h b/include/linux/platform_data/s3c-hsotg.h index 3982586ba6df..004ddaf650cd 100644 --- a/include/linux/platform_data/s3c-hsotg.h +++ b/include/linux/platform_data/s3c-hsotg.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* include/linux/platform_data/s3c-hsotg.h * * Copyright 2008 Openmoko, Inc. @@ -6,10 +7,6 @@ * http://armlinux.simtec.co.uk/ * * S3C USB2.0 High-speed / OtG platform information - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_USB_S3C_HSOTG_H diff --git a/include/linux/platform_data/s3c-hsudc.h b/include/linux/platform_data/s3c-hsudc.h index 6fa109339bf9..4dc9b8760166 100644 --- a/include/linux/platform_data/s3c-hsudc.h +++ b/include/linux/platform_data/s3c-hsudc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * S3C24XX USB 2.0 High-speed USB controller gadget driver * @@ -7,10 +8,6 @@ * The S3C24XX USB 2.0 high-speed USB controller supports upto 9 endpoints. * Each endpoint can be configured as either in or out endpoint. Endpoints * can be configured for Bulk or Interrupt transfer mode. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_USB_S3C_HSUDC_H diff --git a/include/linux/platform_data/sc18is602.h b/include/linux/platform_data/sc18is602.h index 18602cab7799..e066d3b0d6d8 100644 --- a/include/linux/platform_data/sc18is602.h +++ b/include/linux/platform_data/sc18is602.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Platform data for NXP SC18IS602/603 * * Copyright (C) 2012 Guenter Roeck * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * For further information, see the Documentation/spi/spi-sc18is602 file. */ diff --git a/include/linux/platform_data/spi-ath79.h b/include/linux/platform_data/spi-ath79.h index aa71216edf99..81a388ff58cc 100644 --- a/include/linux/platform_data/spi-ath79.h +++ b/include/linux/platform_data/spi-ath79.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Platform data definition for Atheros AR71XX/AR724X/AR913X SPI controller * * Copyright (C) 2008-2010 Gabor Juhos - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. */ #ifndef _ATH79_SPI_PLATFORM_H diff --git a/include/linux/platform_data/spi-mt65xx.h b/include/linux/platform_data/spi-mt65xx.h index ba4e4bb70262..617a75336d56 100644 --- a/include/linux/platform_data/spi-mt65xx.h +++ b/include/linux/platform_data/spi-mt65xx.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * MTK SPI bus driver definitions * * Copyright (c) 2015 MediaTek Inc. * Author: Leilk Liu - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef ____LINUX_PLATFORM_DATA_SPI_MTK_H diff --git a/include/linux/platform_data/ti-aemif.h b/include/linux/platform_data/ti-aemif.h index e6407bafcbf8..77625251df07 100644 --- a/include/linux/platform_data/ti-aemif.h +++ b/include/linux/platform_data/ti-aemif.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * TI DaVinci AEMIF platform glue. * @@ -5,10 +6,6 @@ * * Author: * Bartosz Golaszewski - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __TI_DAVINCI_AEMIF_DATA_H__ diff --git a/include/linux/platform_data/touchscreen-s3c2410.h b/include/linux/platform_data/touchscreen-s3c2410.h index 71eccaa9835d..bf8d3b9d7c6a 100644 --- a/include/linux/platform_data/touchscreen-s3c2410.h +++ b/include/linux/platform_data/touchscreen-s3c2410.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2005 Arnaud Patard - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __TOUCHSCREEN_S3C2410_H diff --git a/include/linux/platform_data/txx9/ndfmc.h b/include/linux/platform_data/txx9/ndfmc.h index fc172627d54e..7aaa4cd34d31 100644 --- a/include/linux/platform_data/txx9/ndfmc.h +++ b/include/linux/platform_data/txx9/ndfmc.h @@ -1,7 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. * * (C) Copyright TOSHIBA CORPORATION 2007 */ diff --git a/include/linux/platform_data/usb-ohci-s3c2410.h b/include/linux/platform_data/usb-ohci-s3c2410.h index cc7554ae6e8b..558a9605be78 100644 --- a/include/linux/platform_data/usb-ohci-s3c2410.h +++ b/include/linux/platform_data/usb-ohci-s3c2410.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* arch/arm/plat-samsung/include/plat/usb-control.h * * Copyright (c) 2004 Simtec Electronics * Ben Dooks * * S3C - USB host port information - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __ASM_ARCH_USBCONTROL_H diff --git a/include/linux/platform_data/usb-pxa3xx-ulpi.h b/include/linux/platform_data/usb-pxa3xx-ulpi.h index 9d82cb65ea56..4d31a5cbdeb1 100644 --- a/include/linux/platform_data/usb-pxa3xx-ulpi.h +++ b/include/linux/platform_data/usb-pxa3xx-ulpi.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * PXA3xx U2D header * * Copyright (C) 2010 CompuLab Ltd. * * Igor Grinberg - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __PXA310_U2D__ #define __PXA310_U2D__ diff --git a/include/linux/platform_data/usb-s3c2410_udc.h b/include/linux/platform_data/usb-s3c2410_udc.h index de8e2288a509..07394819d03b 100644 --- a/include/linux/platform_data/usb-s3c2410_udc.h +++ b/include/linux/platform_data/usb-s3c2410_udc.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* arch/arm/plat-samsung/include/plat/udc.h * * Copyright (c) 2005 Arnaud Patard * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * * Changelog: * 14-Mar-2005 RTP Created file * 02-Aug-2005 RTP File rename diff --git a/include/linux/platform_data/video-mx3fb.h b/include/linux/platform_data/video-mx3fb.h index fdbe60001542..d03dc322a616 100644 --- a/include/linux/platform_data/video-mx3fb.h +++ b/include/linux/platform_data/video-mx3fb.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2008 * Guennadi Liakhovetski, DENX Software Engineering, - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __ASM_ARCH_MX3FB_H__ diff --git a/include/linux/platform_data/video-pxafb.h b/include/linux/platform_data/video-pxafb.h index 07c6c1e153f8..b3d574778326 100644 --- a/include/linux/platform_data/video-pxafb.h +++ b/include/linux/platform_data/video-pxafb.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Support for the xscale frame buffer. * * Author: Jean-Frederic Clere * Created: Sep 22, 2003 * Copyright: jfclere@sinix.net - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include diff --git a/include/linux/platform_data/voltage-omap.h b/include/linux/platform_data/voltage-omap.h index 5be4d5def427..43e8da9fb447 100644 --- a/include/linux/platform_data/voltage-omap.h +++ b/include/linux/platform_data/voltage-omap.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * OMAP Voltage Management Routines * * Copyright (C) 2011, Texas Instruments, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __ARCH_ARM_OMAP_VOLTAGE_H diff --git a/include/linux/platform_data/x86/clk-lpss.h b/include/linux/platform_data/x86/clk-lpss.h index 23901992b9dd..207e1a317800 100644 --- a/include/linux/platform_data/x86/clk-lpss.h +++ b/include/linux/platform_data/x86/clk-lpss.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Intel Low Power Subsystem clocks. * * Copyright (C) 2013, Intel Corporation * Authors: Mika Westerberg * Rafael J. Wysocki - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __CLK_LPSS_H diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index b150fe97ce5a..5f3a1ee9c4c2 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Generic OPP Interface * @@ -5,10 +6,6 @@ * Nishanth Menon * Romit Dasgupta * Kevin Hilman - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_OPP_H__ diff --git a/include/linux/power/bq24190_charger.h b/include/linux/power/bq24190_charger.h index 45ce7f116a91..313e6fbcb7db 100644 --- a/include/linux/power/bq24190_charger.h +++ b/include/linux/power/bq24190_charger.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Platform data for the TI bq24190 battery charger driver. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _BQ24190_CHARGER_H_ diff --git a/include/linux/power/charger-manager.h b/include/linux/power/charger-manager.h index 2ce8d00c20de..ad19e68e1fc3 100644 --- a/include/linux/power/charger-manager.h +++ b/include/linux/power/charger-manager.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2011 Samsung Electronics Co., Ltd. * MyungJoo.Ham @@ -7,9 +8,6 @@ * monitor charging even in the context of suspend-to-RAM with * an interface combining the chargers. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. **/ #ifndef _CHARGER_MANAGER_H diff --git a/include/linux/power/generic-adc-battery.h b/include/linux/power/generic-adc-battery.h index b1ebe08533b6..40f9c7628f7b 100644 --- a/include/linux/power/generic-adc-battery.h +++ b/include/linux/power/generic-adc-battery.h @@ -1,8 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012, Anish Kumar - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef GENERIC_ADC_BATTERY_H diff --git a/include/linux/power/smb347-charger.h b/include/linux/power/smb347-charger.h index b3cb20dab55f..e0b687a4d20c 100644 --- a/include/linux/power/smb347-charger.h +++ b/include/linux/power/smb347-charger.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Summit Microelectronics SMB347 Battery Charger Driver * @@ -5,10 +6,6 @@ * * Authors: Bruce E. Robertson * Mika Westerberg - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef SMB347_CHARGER_H diff --git a/include/linux/ppp-comp.h b/include/linux/ppp-comp.h index 4ea1d377e1ad..9d3ffc8f5ea6 100644 --- a/include/linux/ppp-comp.h +++ b/include/linux/ppp-comp.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ppp-comp.h - Definitions for doing PPP packet compression. * * Copyright 1994-1998 Paul Mackerras. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. */ #ifndef _NET_PPP_COMP_H #define _NET_PPP_COMP_H diff --git a/include/linux/ppp_defs.h b/include/linux/ppp_defs.h index 28aa0237c8c3..9d2b388fae1a 100644 --- a/include/linux/ppp_defs.h +++ b/include/linux/ppp_defs.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ppp_defs.h - PPP definitions. * * Copyright 1994-2000 Paul Mackerras. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. */ #ifndef _PPP_DEFS_H_ #define _PPP_DEFS_H_ diff --git a/include/linux/property.h b/include/linux/property.h index a29369c89e6e..e9caa290cda5 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * property.h - Unified device property interface. * * Copyright (C) 2014, Intel Corporation * Authors: Rafael J. Wysocki * Mika Westerberg - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _LINUX_PROPERTY_H_ diff --git a/include/linux/psp-sev.h b/include/linux/psp-sev.h index 6f89fc8d4b8e..5167bf2bfc75 100644 --- a/include/linux/psp-sev.h +++ b/include/linux/psp-sev.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AMD Secure Encrypted Virtualization (SEV) driver interface * @@ -6,10 +7,6 @@ * Author: Brijesh Singh * * SEV API spec is available at https://developer.amd.com/sev - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __PSP_SEV_H__ diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h index 979087e021f3..a5d1837e4f35 100644 --- a/include/linux/pxa2xx_ssp.h +++ b/include/linux/pxa2xx_ssp.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * pxa2xx_ssp.h * * Copyright (C) 2003 Russell King, All Rights Reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * This driver supports the following PXA CPU/SSP ports:- * * PXA250 SSP diff --git a/include/linux/regmap.h b/include/linux/regmap.h index daeec7dbd65c..d3dea823af8e 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef __LINUX_REGMAP_H #define __LINUX_REGMAP_H @@ -7,10 +8,6 @@ * Copyright 2011 Wolfson Microelectronics plc * * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include diff --git a/include/linux/regulator/arizona-ldo1.h b/include/linux/regulator/arizona-ldo1.h index fe74ab9990e6..1fe2c71fc699 100644 --- a/include/linux/regulator/arizona-ldo1.h +++ b/include/linux/regulator/arizona-ldo1.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Platform data for Arizona LDO1 regulator * * Copyright 2017 Cirrus Logic - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef ARIZONA_LDO1_H diff --git a/include/linux/regulator/arizona-micsupp.h b/include/linux/regulator/arizona-micsupp.h index 616842619c00..cacb866d5bfb 100644 --- a/include/linux/regulator/arizona-micsupp.h +++ b/include/linux/regulator/arizona-micsupp.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Platform data for Arizona micsupp regulator * * Copyright 2017 Cirrus Logic - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef ARIZONA_MICSUPP_H diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index aaf3cee70439..815983419375 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * consumer.h -- SoC Regulator consumer support. * @@ -5,10 +6,6 @@ * * Author: Liam Girdwood * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Regulator Consumer Interface. * * A Power Management Regulator framework for SoC based devices. @@ -29,7 +26,6 @@ * but this drops rapidly to 60% when below 100mA. Regulator r has > 90% * efficiency in IDLE mode at loads < 10mA. Thus regulator r will operate * in normal mode for loads > 10mA and in IDLE mode for load <= 10mA. - * */ #ifndef __LINUX_REGULATOR_CONSUMER_H_ diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 377da2357118..d45ab52c91c9 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * driver.h -- SoC Regulator driver support. * @@ -5,10 +6,6 @@ * * Author: Liam Girdwood * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Regulator Driver Interface. */ diff --git a/include/linux/regulator/lp872x.h b/include/linux/regulator/lp872x.h index 6029279f4eed..d780dbb8b423 100644 --- a/include/linux/regulator/lp872x.h +++ b/include/linux/regulator/lp872x.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2012 Texas Instruments * * Author: Milo(Woogyom) Kim - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __LP872X_REGULATOR_H__ diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h index 1d34a70ffda2..5539efa76d26 100644 --- a/include/linux/regulator/machine.h +++ b/include/linux/regulator/machine.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * machine.h -- SoC Regulator support, machine/board driver API. * @@ -5,10 +6,6 @@ * * Author: Liam Girdwood * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Regulator Machine/Board Interface. */ diff --git a/include/linux/regulator/max8649.h b/include/linux/regulator/max8649.h index 417d14ecd5cb..bc9b9c98c1ad 100644 --- a/include/linux/regulator/max8649.h +++ b/include/linux/regulator/max8649.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Interface of Maxim max8649 * * Copyright (C) 2009-2010 Marvell International Ltd. * Haojian Zhuang - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_REGULATOR_MAX8649_H diff --git a/include/linux/rmi.h b/include/linux/rmi.h index 5ef5c7c412a7..7b22366d0065 100644 --- a/include/linux/rmi.h +++ b/include/linux/rmi.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2011-2016 Synaptics Incorporated * Copyright (c) 2011 Unixphere - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _RMI_H diff --git a/include/linux/rtc/ds1685.h b/include/linux/rtc/ds1685.h index a00b332c505f..43aec568ba7c 100644 --- a/include/linux/rtc/ds1685.h +++ b/include/linux/rtc/ds1685.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Definitions for the registers, addresses, and platform data of the * DS1685/DS1687-series RTC chips. @@ -15,10 +16,6 @@ * DS17x85/DS17x87 3V/5V Real-Time Clocks, 19-5222, Rev 4/10. * DS1689/DS1693 3V/5V Serialized Real-Time Clocks, Rev 112105. * Application Note 90, Using the Multiplex Bus RTC Extended Features. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _LINUX_RTC_DS1685_H_ diff --git a/include/linux/rtc/m48t59.h b/include/linux/rtc/m48t59.h index 6fc961459b4a..9465d5405fe2 100644 --- a/include/linux/rtc/m48t59.h +++ b/include/linux/rtc/m48t59.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/rtc/m48t59.h * @@ -6,10 +7,6 @@ * Copyright (c) 2007 Wind River Systems, Inc. * * Mark Zhan - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _LINUX_RTC_M48T59_H_ diff --git a/include/linux/sched_clock.h b/include/linux/sched_clock.h index abe28d5cb3f4..0bb04a96a6d4 100644 --- a/include/linux/sched_clock.h +++ b/include/linux/sched_clock.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * sched_clock.h: support for extending counters to full 64-bit ns counter - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef LINUX_SCHED_CLOCK #define LINUX_SCHED_CLOCK diff --git a/include/linux/serio.h b/include/linux/serio.h index 138a5efe863a..6c27d413da92 100644 --- a/include/linux/serio.h +++ b/include/linux/serio.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 1999-2002 Vojtech Pavlik -* - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _SERIO_H #define _SERIO_H diff --git a/include/linux/set_memory.h b/include/linux/set_memory.h index b5071497b8cb..86281ac7c305 100644 --- a/include/linux/set_memory.h +++ b/include/linux/set_memory.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2017, Michael Ellerman, IBM Corporation. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation; */ #ifndef _LINUX_SET_MEMORY_H_ #define _LINUX_SET_MEMORY_H_ diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h index 56b97eed28a4..9f79806085f5 100644 --- a/include/linux/sh_dma.h +++ b/include/linux/sh_dma.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Header for the new SH dmaengine driver * * Copyright (C) 2010 Guennadi Liakhovetski - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef SH_DMA_H #define SH_DMA_H diff --git a/include/linux/siox.h b/include/linux/siox.h index d79624e83134..a860cb8c1f9d 100644 --- a/include/linux/siox.h +++ b/include/linux/siox.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2015 Pengutronix, Uwe Kleine-König - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. */ #include diff --git a/include/linux/sizes.h b/include/linux/sizes.h index fbde0bc7e882..1cbb4c4d016e 100644 --- a/include/linux/sizes.h +++ b/include/linux/sizes.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * include/linux/sizes.h - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_SIZES_H__ #define __LINUX_SIZES_H__ diff --git a/include/linux/sm501-regs.h b/include/linux/sm501-regs.h index 67ed2c542831..2c5cb6ccc599 100644 --- a/include/linux/sm501-regs.h +++ b/include/linux/sm501-regs.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* sm501-regs.h * * Copyright 2006 Simtec Electronics * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Silicon Motion SM501 register definitions */ diff --git a/include/linux/spi/s3c24xx.h b/include/linux/spi/s3c24xx.h index ca271c06c591..c91d10b82f08 100644 --- a/include/linux/spi/s3c24xx.h +++ b/include/linux/spi/s3c24xx.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2006 Simtec Electronics * Ben Dooks * * S3C2410 - SPI Controller platform_device info - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_SPI_S3C24XX_H diff --git a/include/linux/sxgbe_platform.h b/include/linux/sxgbe_platform.h index a62442cf0037..267369110584 100644 --- a/include/linux/sxgbe_platform.h +++ b/include/linux/sxgbe_platform.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * 10G controller driver for Samsung EXYNOS SoCs * @@ -5,10 +6,6 @@ * http://www.samsung.com * * Author: Siva Reddy Kallam - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __SXGBE_PLATFORM_H__ #define __SXGBE_PLATFORM_H__ diff --git a/include/linux/tca6416_keypad.h b/include/linux/tca6416_keypad.h index 7bd266f3525c..b0d36a9934cc 100644 --- a/include/linux/tca6416_keypad.h +++ b/include/linux/tca6416_keypad.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * tca6416 keypad platform support * * Copyright (C) 2010 Texas Instruments * * Author: Sriramakrishnan - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _TCA6416_KEYS_H diff --git a/include/linux/tifm.h b/include/linux/tifm.h index 848c0f392541..299cbb8c63bb 100644 --- a/include/linux/tifm.h +++ b/include/linux/tifm.h @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * tifm.h - TI FlashMedia driver * * Copyright (C) 2006 Alex Dubov - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef _TIFM_H diff --git a/include/linux/timeriomem-rng.h b/include/linux/timeriomem-rng.h index 3e00122bcf88..fd4a6e6ec831 100644 --- a/include/linux/timeriomem-rng.h +++ b/include/linux/timeriomem-rng.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/timeriomem-rng.h * * Copyright (c) 2009 Alexander Clouter - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ struct timeriomem_rng_data { diff --git a/include/linux/tracefs.h b/include/linux/tracefs.h index 5b727a17beee..88d279c1b863 100644 --- a/include/linux/tracefs.h +++ b/include/linux/tracefs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * tracefs.h - a pseudo file system for activating tracing * @@ -5,12 +6,7 @@ * * Copyright (C) 2014 Red Hat Inc, author: Steven Rostedt * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * * tracefs is the file system that is used by the tracing infrastructure. - * */ #ifndef _TRACEFS_H_ diff --git a/include/linux/ucb1400.h b/include/linux/ucb1400.h index 2e9ee4d1c676..0968ef458447 100644 --- a/include/linux/ucb1400.h +++ b/include/linux/ucb1400.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Register definitions and functions for: * Philips UCB1400 driver @@ -11,10 +12,6 @@ * If something doesn't work and it worked before spliting, e-mail me, * dont bother Nicolas please ;-) * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * This code is heavily based on ucb1x00-*.c copyrighted by Russell King * covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request. diff --git a/include/linux/vfio.h b/include/linux/vfio.h index 66741ab087c1..e42a711a2800 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * VFIO API definition * * Copyright (C) 2012 Red Hat, Inc. All rights reserved. * Author: Alex Williamson - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef VFIO_H #define VFIO_H diff --git a/include/linux/w1-gpio.h b/include/linux/w1-gpio.h index 78901ecd2f95..3495fd0dc790 100644 --- a/include/linux/w1-gpio.h +++ b/include/linux/w1-gpio.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * w1-gpio interface to platform code * * Copyright (C) 2007 Ville Syrjala - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. */ #ifndef _LINUX_W1_GPIO_H #define _LINUX_W1_GPIO_H -- cgit v1.2.3 From cd93f165c9f15f17944daf00a404b5964cc3cd29 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 4 Jun 2019 10:11:36 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 503 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Reviewed-by: Enrico Weigelt Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081207.308909165@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/kvm_types.h | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) (limited to 'include/linux') diff --git a/include/linux/kvm_types.h b/include/linux/kvm_types.h index 8bf259dae9f6..bde5374ae021 100644 --- a/include/linux/kvm_types.h +++ b/include/linux/kvm_types.h @@ -1,18 +1,4 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - */ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef __KVM_TYPES_H__ #define __KVM_TYPES_H__ -- cgit v1.2.3 From 775c8a3d7187b82e15ebfdae486d8ab32e017b4b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 4 Jun 2019 10:11:37 +0200 Subject: treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504 Based on 1 normalized pattern(s): this file is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 8 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081207.443595178@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/io-mapping.h | 14 +------------- include/linux/io.h | 14 +------------- 2 files changed, 2 insertions(+), 26 deletions(-) (limited to 'include/linux') diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h index 58df02bd93c9..6e125e9b4187 100644 --- a/include/linux/io-mapping.h +++ b/include/linux/io-mapping.h @@ -1,18 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright © 2008 Keith Packard - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef _LINUX_IO_MAPPING_H diff --git a/include/linux/io.h b/include/linux/io.h index 32e30e8fb9db..9876e5801a9d 100644 --- a/include/linux/io.h +++ b/include/linux/io.h @@ -1,18 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2006 PathScale, Inc. All Rights Reserved. - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef _LINUX_IO_H -- cgit v1.2.3 From 191f5c2ed4b6fabacf1f3500242047bd844d0c3a Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Mon, 10 Jun 2019 06:24:04 +0000 Subject: mtd: spi-nor: use 16-bit WRR command when QE is set on spansion flashes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit SPI memory devices from different manufacturers have widely different configurations for Status, Control and Configuration registers. JEDEC 216C defines a new map for these common register bits and their functions, and describes how the individual bits may be accessed for a specific device. For the JEDEC 216B compliant flashes, we can partially deduce Status and Configuration registers functions by inspecting the 16th DWORD of BFPT. Older flashes that don't declare the SFDP tables (SPANSION FL512SAIFG1 311QQ063 A ©11 SPANSION) let the software decide how to interact with these registers. The commit dcb4b22eeaf4 ("spi-nor: s25fl512s supports region locking") uncovered a probe error for s25fl512s, when the Quad Enable bit CR[1] was set to one in the bootloader. When this bit is one, only the Write Status (01h) command with two data byts may be used, the 01h command with one data byte is not recognized and hence the error when trying to clear the block protection bits. Fix the above by using the Write Status (01h) command with two data bytes when the Quad Enable bit is one. Backward compatibility should be fine. The newly introduced spi_nor_spansion_clear_sr_bp() is tightly coupled with the spansion_quad_enable() function. Both assume that the Write Register with 16 bits, together with the Read Configuration Register (35h) instructions are supported. Fixes: dcb4b22eeaf44f91 ("spi-nor: s25fl512s supports region locking") Reported-by: Geert Uytterhoeven Signed-off-by: Tudor Ambarus Tested-by: Jonas Bonn Tested-by: Geert Uytterhoeven Reviewed-by: Vignesh Raghavendra Tested-by: Vignesh Raghavendra Signed-off-by: Miquel Raynal --- include/linux/mtd/spi-nor.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index b3d360b0ee3d..9f57cdfcc93d 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -373,6 +373,8 @@ struct flash_info; * @flash_unlock: [FLASH-SPECIFIC] unlock a region of the SPI NOR * @flash_is_locked: [FLASH-SPECIFIC] check if a region of the SPI NOR is * @quad_enable: [FLASH-SPECIFIC] enables SPI NOR quad mode + * @clear_sr_bp: [FLASH-SPECIFIC] clears the Block Protection Bits from + * the SPI NOR Status Register. * completely locked * @priv: the private data */ @@ -410,6 +412,7 @@ struct spi_nor { int (*flash_unlock)(struct spi_nor *nor, loff_t ofs, uint64_t len); int (*flash_is_locked)(struct spi_nor *nor, loff_t ofs, uint64_t len); int (*quad_enable)(struct spi_nor *nor); + int (*clear_sr_bp)(struct spi_nor *nor); void *priv; }; -- cgit v1.2.3 From e321d02db87af7840da29ef833a2a71fc0eab198 Mon Sep 17 00:00:00 2001 From: Kan Liang Date: Tue, 28 May 2019 15:08:30 -0700 Subject: perf/x86: Disable extended registers for non-supported PMUs The perf fuzzer caused Skylake machine to crash: [ 9680.085831] Call Trace: [ 9680.088301] [ 9680.090363] perf_output_sample_regs+0x43/0xa0 [ 9680.094928] perf_output_sample+0x3aa/0x7a0 [ 9680.099181] perf_event_output_forward+0x53/0x80 [ 9680.103917] __perf_event_overflow+0x52/0xf0 [ 9680.108266] ? perf_trace_run_bpf_submit+0xc0/0xc0 [ 9680.113108] perf_swevent_hrtimer+0xe2/0x150 [ 9680.117475] ? check_preempt_wakeup+0x181/0x230 [ 9680.122091] ? check_preempt_curr+0x62/0x90 [ 9680.126361] ? ttwu_do_wakeup+0x19/0x140 [ 9680.130355] ? try_to_wake_up+0x54/0x460 [ 9680.134366] ? reweight_entity+0x15b/0x1a0 [ 9680.138559] ? __queue_work+0x103/0x3f0 [ 9680.142472] ? update_dl_rq_load_avg+0x1cd/0x270 [ 9680.147194] ? timerqueue_del+0x1e/0x40 [ 9680.151092] ? __remove_hrtimer+0x35/0x70 [ 9680.155191] __hrtimer_run_queues+0x100/0x280 [ 9680.159658] hrtimer_interrupt+0x100/0x220 [ 9680.163835] smp_apic_timer_interrupt+0x6a/0x140 [ 9680.168555] apic_timer_interrupt+0xf/0x20 [ 9680.172756] The XMM registers can only be collected by PEBS hardware events on the platforms with PEBS baseline support, e.g. Icelake, not software/probe events. Add capabilities flag PERF_PMU_CAP_EXTENDED_REGS to indicate the PMU which support extended registers. For X86, the extended registers are XMM registers. Add has_extended_regs() to check if extended registers are applied. The generic code define the mask of extended registers as 0 if arch headers haven't overridden it. Originally-by: Peter Zijlstra (Intel) Reported-by: Vince Weaver Signed-off-by: Kan Liang Signed-off-by: Peter Zijlstra (Intel) Cc: Alexander Shishkin Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Fixes: 878068ea270e ("perf/x86: Support outputting XMM registers") Link: https://lkml.kernel.org/r/1559081314-9714-1-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 1 + include/linux/perf_regs.h | 8 ++++++++ 2 files changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 0ab99c7b652d..2bca72f3028b 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -241,6 +241,7 @@ struct perf_event; #define PERF_PMU_CAP_NO_INTERRUPT 0x01 #define PERF_PMU_CAP_NO_NMI 0x02 #define PERF_PMU_CAP_AUX_NO_SG 0x04 +#define PERF_PMU_CAP_EXTENDED_REGS 0x08 #define PERF_PMU_CAP_EXCLUSIVE 0x10 #define PERF_PMU_CAP_ITRACE 0x20 #define PERF_PMU_CAP_HETEROGENEOUS_CPUS 0x40 diff --git a/include/linux/perf_regs.h b/include/linux/perf_regs.h index 476747456bca..2d12e97d5e7b 100644 --- a/include/linux/perf_regs.h +++ b/include/linux/perf_regs.h @@ -11,6 +11,11 @@ struct perf_regs { #ifdef CONFIG_HAVE_PERF_REGS #include + +#ifndef PERF_REG_EXTENDED_MASK +#define PERF_REG_EXTENDED_MASK 0 +#endif + u64 perf_reg_value(struct pt_regs *regs, int idx); int perf_reg_validate(u64 mask); u64 perf_reg_abi(struct task_struct *task); @@ -18,6 +23,9 @@ void perf_get_regs_user(struct perf_regs *regs_user, struct pt_regs *regs, struct pt_regs *regs_user_copy); #else + +#define PERF_REG_EXTENDED_MASK 0 + static inline u64 perf_reg_value(struct pt_regs *regs, int idx) { return 0; -- cgit v1.2.3 From b12bbdc5dd883f6575f57e529af26cd2c521b320 Mon Sep 17 00:00:00 2001 From: Hyungwoo Yang Date: Wed, 5 Jun 2019 21:52:27 -0700 Subject: HID: intel-ish-hid: fix wrong driver_data usage Currently, in suspend() and resume(), ishtp client drivers are using driver_data to get "struct ishtp_cl_device" object which is set by bus driver. It's wrong since the driver_data should not be owned bus. driver_data should be owned by the corresponding ishtp client driver. Due to this, some ishtp client driver like cros_ec_ishtp which uses its driver_data to transfer its data to its child doesn't work correctly. So this patch removes setting driver_data in bus drier and instead of using driver_data to get "struct ishtp_cl_device", since "struct device" is embedded in "struct ishtp_cl_device", we introduce a helper function that returns "struct ishtp_cl_device" from "struct device". Signed-off-by: Hyungwoo Yang Acked-by: Srinivas Pandruvada Signed-off-by: Jiri Kosina --- include/linux/intel-ish-client-if.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/intel-ish-client-if.h b/include/linux/intel-ish-client-if.h index 16255c2ca2f4..0d6b4bc191c5 100644 --- a/include/linux/intel-ish-client-if.h +++ b/include/linux/intel-ish-client-if.h @@ -103,6 +103,7 @@ void ishtp_put_device(struct ishtp_cl_device *cl_dev); void ishtp_get_device(struct ishtp_cl_device *cl_dev); void ishtp_set_drvdata(struct ishtp_cl_device *cl_device, void *data); void *ishtp_get_drvdata(struct ishtp_cl_device *cl_device); +struct ishtp_cl_device *ishtp_dev_to_cl_device(struct device *dev); int ishtp_register_event_cb(struct ishtp_cl_device *device, void (*read_cb)(struct ishtp_cl_device *)); struct ishtp_fw_client *ishtp_fw_cl_get_client(struct ishtp_device *dev, -- cgit v1.2.3 From 471a739a47aa7d582f0cdf9d392957d04632bae2 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 26 Jun 2019 00:20:23 +0200 Subject: PCI: PM: Avoid skipping bus-level PM on platforms without ACPI There are platforms that do not call pm_set_suspend_via_firmware(), so pm_suspend_via_firmware() returns 'false' on them, but the power states of PCI devices (PCIe ports in particular) are changed as a result of powering down core platform components during system-wide suspend. Thus the pm_suspend_via_firmware() checks in pci_pm_suspend_noirq() and pci_pm_resume_noirq() introduced by commit 3e26c5feed2a ("PCI: PM: Skip devices in D0 for suspend-to- idle") are not sufficient to determine that devices left in D0 during suspend will remain in D0 during resume and so the bus-level power management can be skipped for them. For this reason, introduce a new global suspend flag, PM_SUSPEND_FLAG_NO_PLATFORM, set it for suspend-to-idle only and replace the pm_suspend_via_firmware() checks mentioned above with checks against this flag. Fixes: 3e26c5feed2a ("PCI: PM: Skip devices in D0 for suspend-to-idle") Reported-by: Jon Hunter Tested-by: Jon Hunter Signed-off-by: Rafael J. Wysocki Tested-by: Mika Westerberg Reviewed-by: Mika Westerberg --- include/linux/suspend.h | 26 ++++++++++++++++++++++++-- 1 file changed, 24 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 8594001e8be8..f0d262ad7b78 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -209,8 +209,9 @@ extern int suspend_valid_only_mem(suspend_state_t state); extern unsigned int pm_suspend_global_flags; -#define PM_SUSPEND_FLAG_FW_SUSPEND (1 << 0) -#define PM_SUSPEND_FLAG_FW_RESUME (1 << 1) +#define PM_SUSPEND_FLAG_FW_SUSPEND BIT(0) +#define PM_SUSPEND_FLAG_FW_RESUME BIT(1) +#define PM_SUSPEND_FLAG_NO_PLATFORM BIT(2) static inline void pm_suspend_clear_flags(void) { @@ -227,6 +228,11 @@ static inline void pm_set_resume_via_firmware(void) pm_suspend_global_flags |= PM_SUSPEND_FLAG_FW_RESUME; } +static inline void pm_set_suspend_no_platform(void) +{ + pm_suspend_global_flags |= PM_SUSPEND_FLAG_NO_PLATFORM; +} + /** * pm_suspend_via_firmware - Check if platform firmware will suspend the system. * @@ -268,6 +274,22 @@ static inline bool pm_resume_via_firmware(void) return !!(pm_suspend_global_flags & PM_SUSPEND_FLAG_FW_RESUME); } +/** + * pm_suspend_no_platform - Check if platform may change device power states. + * + * To be called during system-wide power management transitions to sleep states + * or during the subsequent system-wide transitions back to the working state. + * + * Return 'true' if the power states of devices remain under full control of the + * kernel throughout the system-wide suspend and resume cycle in progress (that + * is, if a device is put into a certain power state during suspend, it can be + * expected to remain in that state during resume). + */ +static inline bool pm_suspend_no_platform(void) +{ + return !!(pm_suspend_global_flags & PM_SUSPEND_FLAG_NO_PLATFORM); +} + /* Suspend-to-idle state machnine. */ enum s2idle_states { S2IDLE_STATE_NONE, /* Not suspended/suspending. */ -- cgit v1.2.3 From 36d6cb73d5e60cdb2724c21ccba93c964e6a16f9 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Fri, 28 Jun 2019 12:06:37 -0700 Subject: mm/dev_pfn: exclude MEMORY_DEVICE_PRIVATE while computing virtual address MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The presence of struct page does not guarantee linear mapping for the pfn physical range. Device private memory which is non-coherent is excluded from linear mapping during devm_memremap_pages() though they will still have struct page coverage. Change pfn_t_to_virt() to just check for device private memory before giving out virtual address for a given pfn. pfn_t_to_virt() actually has no callers. Let's fix it for the 5.2 kernel and remove it in 5.3. Link: http://lkml.kernel.org/r/1558089514-25067-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Cc: Dan Williams Cc: Jérôme Glisse Cc: Laurent Dufour Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pfn_t.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/pfn_t.h b/include/linux/pfn_t.h index 7bb77850c65a..3c202a11a79e 100644 --- a/include/linux/pfn_t.h +++ b/include/linux/pfn_t.h @@ -68,7 +68,7 @@ static inline phys_addr_t pfn_t_to_phys(pfn_t pfn) static inline void *pfn_t_to_virt(pfn_t pfn) { - if (pfn_t_has_page(pfn)) + if (pfn_t_has_page(pfn) && !is_device_private_page(pfn_t_to_page(pfn))) return __va(pfn_t_to_phys(pfn)); return NULL; } -- cgit v1.2.3 From 97abc889ee296faf95ca0e978340fb7b942a3e32 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Fri, 28 Jun 2019 12:06:50 -0700 Subject: signal: remove the wrong signal_pending() check in restore_user_sigmask() This is the minimal fix for stable, I'll send cleanups later. Commit 854a6ed56839 ("signal: Add restore_user_sigmask()") introduced the visible change which breaks user-space: a signal temporary unblocked by set_user_sigmask() can be delivered even if the caller returns success or timeout. Change restore_user_sigmask() to accept the additional "interrupted" argument which should be used instead of signal_pending() check, and update the callers. Eric said: : For clarity. I don't think this is required by posix, or fundamentally to : remove the races in select. It is what linux has always done and we have : applications who care so I agree this fix is needed. : : Further in any case where the semantic change that this patch rolls back : (aka where allowing a signal to be delivered and the select like call to : complete) would be advantage we can do as well if not better by using : signalfd. : : Michael is there any chance we can get this guarantee of the linux : implementation of pselect and friends clearly documented. The guarantee : that if the system call completes successfully we are guaranteed that no : signal that is unblocked by using sigmask will be delivered? Link: http://lkml.kernel.org/r/20190604134117.GA29963@redhat.com Fixes: 854a6ed56839a40f6b5d02a2962f48841482eec4 ("signal: Add restore_user_sigmask()") Signed-off-by: Oleg Nesterov Reported-by: Eric Wong Tested-by: Eric Wong Acked-by: "Eric W. Biederman" Acked-by: Arnd Bergmann Acked-by: Deepa Dinamani Cc: Michael Kerrisk Cc: Jens Axboe Cc: Davidlohr Bueso Cc: Jason Baron Cc: Thomas Gleixner Cc: Al Viro Cc: David Laight Cc: [5.0+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/signal.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/signal.h b/include/linux/signal.h index 9702016734b1..78c2bb376954 100644 --- a/include/linux/signal.h +++ b/include/linux/signal.h @@ -276,7 +276,7 @@ extern int sigprocmask(int, sigset_t *, sigset_t *); extern int set_user_sigmask(const sigset_t __user *usigmask, sigset_t *set, sigset_t *oldset, size_t sigsetsize); extern void restore_user_sigmask(const void __user *usigmask, - sigset_t *sigsaved); + sigset_t *sigsaved, bool interrupted); extern void set_current_blocked(sigset_t *); extern void __set_current_blocked(const sigset_t *); extern int show_unhandled_signals; -- cgit v1.2.3 From 8f9fab480c7a87b10bb5440b5555f370272a5d59 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Fri, 28 Jun 2019 12:07:21 -0700 Subject: linux/kernel.h: fix overflow for DIV_ROUND_UP_ULL DIV_ROUND_UP_ULL adds the two arguments and then invokes DIV_ROUND_DOWN_ULL. But on a 32bit system the addition of two 32 bit values can overflow. DIV_ROUND_DOWN_ULL does it correctly and stashes the addition into a unsigned long long so cast the result to unsigned long long here to avoid the overflow condition. [akpm@linux-foundation.org: DIV_ROUND_UP_ULL must be an rval] Link: http://lkml.kernel.org/r/20190625100518.30753-1-vkoul@kernel.org Signed-off-by: Vinod Koul Reviewed-by: Andrew Morton Cc: Bjorn Andersson Cc: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kernel.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 74b1ee9027f5..0c9bc231107f 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -93,7 +93,8 @@ #define DIV_ROUND_DOWN_ULL(ll, d) \ ({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; }) -#define DIV_ROUND_UP_ULL(ll, d) DIV_ROUND_DOWN_ULL((ll) + (d) - 1, (d)) +#define DIV_ROUND_UP_ULL(ll, d) \ + DIV_ROUND_DOWN_ULL((unsigned long long)(ll) + (d) - 1, (d)) #if BITS_PER_LONG == 32 # define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP_ULL(ll, d) -- cgit v1.2.3 From eef778c99c0239ed0a0696ddf22ae3673f28a489 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 4 Jul 2019 15:14:45 -0700 Subject: devres: allow const resource arguments devm_ioremap_resource() does not currently take 'const' arguments, which results in a warning from the first driver trying to do it anyway: drivers/gpio/gpio-amd-fch.c: In function 'amd_fch_gpio_probe': drivers/gpio/gpio-amd-fch.c:171:49: error: passing argument 2 of 'devm_ioremap_resource' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] priv->base = devm_ioremap_resource(&pdev->dev, &amd_fch_gpio_iores); ^~~~~~~~~~~~~~~~~~~ Change the prototype to allow it, as there is no real reason not to. Link: http://lkml.kernel.org/r/20190628150049.1108048-1-arnd@arndb.de Fixes: 9bb2e0452508 ("gpio: amd: Make resource struct const") Signed-off-by: Arnd Bergmann Acked-by: Greg Kroah-Hartman Reviewed-by: Enrico Weigelt Reviewed-by: Andrew Morton Cc: Greg Kroah-Hartman Cc: Linus Walleij Cc: Arnd Bergmann Cc: "Rafael J. Wysocki" Cc: Ulf Hansson Cc: Andy Shevchenko Cc: Heikki Krogerus Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/device.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/device.h b/include/linux/device.h index 848fc71c6ba6..4a295e324ac5 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -704,7 +704,8 @@ extern unsigned long devm_get_free_pages(struct device *dev, gfp_t gfp_mask, unsigned int order); extern void devm_free_pages(struct device *dev, unsigned long addr); -void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res); +void __iomem *devm_ioremap_resource(struct device *dev, + const struct resource *res); void __iomem *devm_of_iomap(struct device *dev, struct device_node *node, int index, -- cgit v1.2.3 From 69bf4b6b54fb7f52b7ea9ce28d4a360cd5ec956d Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 5 Jul 2019 19:55:18 -0700 Subject: Revert "mm: page cache: store only head pages in i_pages" This reverts commit 5fd4ca2d84b249f0858ce28cf637cf25b61a398f. Mikhail Gavrilov reports that it causes the VM_BUG_ON_PAGE() in __delete_from_swap_cache() to trigger: page:ffffd6d34dff0000 refcount:1 mapcount:1 mapping:ffff97812323a689 index:0xfecec363 anon flags: 0x17fffe00080034(uptodate|lru|active|swapbacked) raw: 0017fffe00080034 ffffd6d34c67c508 ffffd6d3504b8d48 ffff97812323a689 raw: 00000000fecec363 0000000000000000 0000000100000000 ffff978433ace000 page dumped because: VM_BUG_ON_PAGE(entry != page) page->mem_cgroup:ffff978433ace000 ------------[ cut here ]------------ kernel BUG at mm/swap_state.c:170! invalid opcode: 0000 [#1] SMP NOPTI CPU: 1 PID: 221 Comm: kswapd0 Not tainted 5.2.0-0.rc2.git0.1.fc31.x86_64 #1 Hardware name: System manufacturer System Product Name/ROG STRIX X470-I GAMING, BIOS 2202 04/11/2019 RIP: 0010:__delete_from_swap_cache+0x20d/0x240 Code: 30 65 48 33 04 25 28 00 00 00 75 4a 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 c7 c6 2f dc 0f 8a 48 89 c7 e8 93 1b fd ff <0f> 0b 48 c7 c6 a8 74 0f 8a e8 85 1b fd ff 0f 0b 48 c7 c6 a8 7d 0f RSP: 0018:ffffa982036e7980 EFLAGS: 00010046 RAX: 0000000000000021 RBX: 0000000000000040 RCX: 0000000000000006 RDX: 0000000000000000 RSI: 0000000000000086 RDI: ffff97843d657900 RBP: 0000000000000001 R08: ffffa982036e7835 R09: 0000000000000535 R10: ffff97845e21a46c R11: ffffa982036e7835 R12: ffff978426387120 R13: 0000000000000000 R14: ffffd6d34dff0040 R15: ffffd6d34dff0000 FS: 0000000000000000(0000) GS:ffff97843d640000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002cba88ef5000 CR3: 000000078a97c000 CR4: 00000000003406e0 Call Trace: delete_from_swap_cache+0x46/0xa0 try_to_free_swap+0xbc/0x110 swap_writepage+0x13/0x70 pageout.isra.0+0x13c/0x350 shrink_page_list+0xc14/0xdf0 shrink_inactive_list+0x1e5/0x3c0 shrink_node_memcg+0x202/0x760 shrink_node+0xe0/0x470 balance_pgdat+0x2d1/0x510 kswapd+0x220/0x420 kthread+0xfb/0x130 ret_from_fork+0x22/0x40 and it's not immediately obvious why it happens. It's too late in the rc cycle to do anything but revert for now. Link: https://lore.kernel.org/lkml/CABXGCsN9mYmBD-4GaaeW_NrDu+FDXLzr_6x+XNxfmFV6QkYCDg@mail.gmail.com/ Reported-and-bisected-by: Mikhail Gavrilov Suggested-by: Jan Kara Cc: Michal Hocko Cc: Vlastimil Babka Cc: Matthew Wilcox Cc: Kirill Shutemov Cc: William Kucharski Cc: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pagemap.h | 13 ------------- 1 file changed, 13 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 9ec3544baee2..fe0b29bf2df7 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -333,19 +333,6 @@ static inline struct page *grab_cache_page_nowait(struct address_space *mapping, mapping_gfp_mask(mapping)); } -static inline struct page *find_subpage(struct page *page, pgoff_t offset) -{ - unsigned long mask; - - if (PageHuge(page)) - return page; - - VM_BUG_ON_PAGE(PageTail(page), page); - - mask = (1UL << compound_order(page)) - 1; - return page + (offset & mask); -} - struct page *find_get_entry(struct address_space *mapping, pgoff_t offset); struct page *find_lock_entry(struct address_space *mapping, pgoff_t offset); unsigned find_get_entries(struct address_space *mapping, pgoff_t start, -- cgit v1.2.3