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2025-06-17gpio: npcm-sgpio: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Link: https://lore.kernel.org/r/20250610-gpiochip-set-rv-gpio-v1-9-3a9a3c1472ff@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-06-17gpio: nomadik: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250610-gpiochip-set-rv-gpio-v1-8-3a9a3c1472ff@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-06-17gpio: msc313: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Reviewed-by: Daniel Palmer <daniel@thingy.jp> Link: https://lore.kernel.org/r/20250610-gpiochip-set-rv-gpio-v1-7-3a9a3c1472ff@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-06-17gpio: mpsse: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Link: https://lore.kernel.org/r/20250610-gpiochip-set-rv-gpio-v1-6-3a9a3c1472ff@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-06-17gpio: mpfs: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Link: https://lore.kernel.org/r/20250610-gpiochip-set-rv-gpio-v1-5-3a9a3c1472ff@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-06-17gpio: mpc5200: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Link: https://lore.kernel.org/r/20250610-gpiochip-set-rv-gpio-v1-4-3a9a3c1472ff@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-06-17gpio: moxtet: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Reviewed-by: Marek Behún <kabel@kernel.org> Link: https://lore.kernel.org/r/20250610-gpiochip-set-rv-gpio-v1-3-3a9a3c1472ff@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-06-17gpio: mm-lantiq: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250610-gpiochip-set-rv-gpio-v1-2-3a9a3c1472ff@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-06-17gpio: mmio: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250610-gpiochip-set-rv-gpio-v1-1-3a9a3c1472ff@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-06-17gpio: pca953x: fix wrong error probe return valueSascha Hauer
The second argument to dev_err_probe() is the error value. Pass the return value of devm_request_threaded_irq() there instead of the irq number. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Fixes: c47f7ff0fe61 ("gpio: pca953x: Utilise dev_err_probe() where it makes sense") Link: https://lore.kernel.org/r/20250616134503.1201138-1-s.hauer@pengutronix.de Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-06-17driver core: Add device_link_test() for testing device link flagsRafael J. Wysocki
To avoid coding mistakes like the one fixed by commit 3860cbe23963 ("PM: sleep: Fix bit masking operation"), introduce device_link_test() for testing device link flags and use it where applicable. No intentional functional impact. Signed-off-by: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/2793309.mvXUDI8C0e@rjwysocki.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-17media: saa7115: Replace open-coded parity calculation with parity8()Kuan-Wei Chiu
Refactor parity calculations to use the standard parity8() helper. This change eliminates redundant implementations. Co-developed-by: Yu-Chun Lin <eleanor15x@gmail.com> Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com> Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: pci: cx18-av-vbi: Replace open-coded parity calculation with parity8()Kuan-Wei Chiu
Refactor parity calculations to use the standard parity8() helper. This change eliminates redundant implementations. Co-developed-by: Yu-Chun Lin <eleanor15x@gmail.com> Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com> Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: media/test_drivers: Replace open-coded parity calculation with parity8()Kuan-Wei Chiu
Refactor parity calculations to use the standard parity8() helper. This change eliminates redundant implementations. Co-developed-by: Yu-Chun Lin <eleanor15x@gmail.com> Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com> Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: raspberrypi: cfe: Fix min_reqbufs_allocationTomi Valkeinen
The driver checks if "vq->max_num_buffers + *nbuffers < 3", but vq->max_num_buffers is (by default) 32, so the check is never true. Nor does the check make sense. The original code in the BSP kernel was "vq->num_buffers + *nbuffers < 3", but got mangled along the way to upstream. The intention was to make sure that at least 3 buffers are allocated. Fix this by removing the bad lines and setting q->min_reqbufs_allocation to three. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: xilinx-vipp: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: c8sectpfe: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: samsung: exynos4-is: Use for_each_available_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: tc358743: Return an appropriate colorspace from tc358743_set_fmtDave Stevenson
When calling tc358743_set_fmt, the code was calling tc358743_get_fmt to choose a valid format. However that sets the colorspace based on information read back from the chip, not the colour format requested. The result was that if you called try or set format for UYVY when the current format was RGB3 then you would get told SRGB, and try RGB3 when current was UYVY and you would get told SMPTE170M. The value programmed in the VI_REP register for the colorspace is always set by this driver, therefore there is no need to read back the value, and never set to REC709. Return the colorspace based on the format set/tried instead. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: tc358743: Check I2C succeeded during probeDave Stevenson
The probe for the TC358743 reads the CHIPID register from the device and compares it to the expected value of 0. If the I2C request fails then that also returns 0, so the driver loads thinking that the device is there. Generally I2C communications are reliable so there is limited need to check the return value on every transfer, therefore only amend the one read during probe to check for I2C errors. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: tc358743: Increase FIFO trigger level to 374Dave Stevenson
The existing fixed value of 16 worked for UYVY 720P60 over 2 lanes at 594MHz, or UYVY 1080P60 over 4 lanes. (RGB888 1080P60 needs 6 lanes at 594MHz). It doesn't allow for lower resolutions to work as the FIFO underflows. 374 is required for 1080P24 or 1080P30 UYVY over 2 lanes @ 972Mbit/s, but >374 means that the FIFO underflows on 1080P50 UYVY over 2 lanes @ 972Mbit/s. Whilst it would be nice to compute it, the required information isn't published by Toshiba. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: tc358743: Add support for 972Mbit/s link freqDave Stevenson
Adds register setups for running the CSI lanes at 972Mbit/s, which allows 1080P50 UYVY down 2 lanes. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17sysfs: treewide: switch back to attribute_group::bin_attrsThomas Weißschuh
The normal bin_attrs field can now handle const pointers. This makes the _new variant unnecessary. Switch all users back. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://lore.kernel.org/r/20250530-sysfs-const-bin_attr-final-v3-4-724bfcf05b99@weissschuh.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-17sysfs: treewide: switch back to bin_attribute::read()/write()Thomas Weißschuh
The bin_attribute argument of bin_attribute::read() is now const. This makes the _new() callbacks unnecessary. Switch all users back. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://lore.kernel.org/r/20250530-sysfs-const-bin_attr-final-v3-3-724bfcf05b99@weissschuh.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-17media: v4l2-jpeg: Remove unused v4l2_jpeg_parse_* wrappersDr. David Alan Gilbert
The functions: v4l2_jpeg_parse_huffman_tables() v4l2_jpeg_parse_quantization_tables() v4l2_jpeg_parse_scan_header() and v4l2_jpeg_parse_frame_header() were added in 2020 by commit 50733b5b9102 ("media: add v4l2 JPEG helpers") but have remained unused. Remove them. They're all just wrappers around an underlying set of helpers, which are all still called via v4l2_jpeg_parse_header(). Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: platform: ti: Remove unused vpdma_update_dma_addrDr. David Alan Gilbert
vpdma_update_dma_addr() was added in 2016 as part of commit 2f88703a0bfd ("[media] media: ti-vpe: vpdma: Add multi-instance and multi-client support") but has remained unused. Remove it. I did see that there was a VIP driver submitted in 2020 that doesn't seem to have got merged which did use this (and a bunch of other unused functions). Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: amphion: Remove unused functionsDr. David Alan Gilbert
The functions: vpu_color_get_default() vpu_color_check_full_range() vpu_color_check_primaries() vpu_color_check_transfers() vpu_color_check_matrix() have been unused since 2022's commit 1925665ef403 ("media: amphion: remove redundant check of colorspace in venc_s_fmt") The (empty) function vpu_mbox_enable_rx() has been unused since it was added in 2022 by the commit 61cbf1c1fa6d ("media: amphion: implement vpu core communication based on mailbox") Remove them. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: exynos4-is: fimc-is: Fully open-code compatible for greppingKrzysztof Kozlowski
It is very useful to find driver implementing compatibles with `git grep compatible`, so driver should not use defines for that string, even if this means string will be effectively duplicated. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: rainshadow-cec: fix TOCTOU race condition in rain_interrupt()Gui-Dong Han
In the interrupt handler rain_interrupt(), the buffer full check on rain->buf_len is performed before acquiring rain->buf_lock. This creates a Time-of-Check to Time-of-Use (TOCTOU) race condition, as rain->buf_len is concurrently accessed and modified in the work handler rain_irq_work_handler() under the same lock. Multiple interrupt invocations can race, with each reading buf_len before it becomes full and then proceeding. This can lead to both interrupts attempting to write to the buffer, incrementing buf_len beyond its capacity (DATA_SIZE) and causing a buffer overflow. Fix this bug by moving the spin_lock() to before the buffer full check. This ensures that the check and the subsequent buffer modification are performed atomically, preventing the race condition. An corresponding spin_unlock() is added to the overflow path to correctly release the lock. This possible bug was found by an experimental static analysis tool developed by our team. Fixes: 0f314f6c2e77 ("[media] rainshadow-cec: new RainShadow Tech HDMI CEC driver") Cc: stable@vger.kernel.org Signed-off-by: Gui-Dong Han <hanguidong02@gmail.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: mgb4: Enumerate only the available timingsMartin Tůma
Enumerate only the available (as given by the sysfs setup - our "EDID replacement") timings, not all theoretically possible. This is the video outputs part of the previous inputs patch that somehow got "lost in translation". Signed-off-by: Martin Tůma <martin.tuma@digiteqautomotive.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: gspca: Add bounds checking to firmware parserDan Carpenter
This sd_init() function reads the firmware. The firmware data holds a series of records and the function reads each record and sends the data to the device. The request_ihex_firmware() function calls ihex_validate_fw() which ensures that the total length of all the records won't read out of bounds of the fw->data[]. However, a potential issue is if there is a single very large record (larger than PAGE_SIZE) and that would result in memory corruption. Generally we trust the firmware, but it's always better to double check. Fixes: 49b61ec9b5af ("[media] gspca: Add new vicam subdriver") Cc: stable@vger.kernel.org Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: cx18: Replace custom implementation of list_entry_is_head()Andy Shevchenko
Besides list_entry_is_past_end() is the same as list_entry_is_head(), it's implemented in the list namespace. Fix both of the issue by replacing the custom version with list_entry_is_head() calls. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: usb: hdpvr: use I2C core to handle only supported messagesWolfram Sang
The HW can only do write-then-read transactions. This is a common limitation, so we can add an adapter quirk flag to let the I2C core enforce the checks instead of open coding them. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: usb: hdpvr: disable zero-length read messagesWolfram Sang
This driver passes the length of an i2c_msg directly to usb_control_msg(). If the message is now a read and of length 0, it violates the USB protocol and a warning will be printed. Enable the I2C_AQ_NO_ZERO_LEN_READ quirk for this adapter thus forbidding 0-length read messages altogether. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: saa7164: Remove unused functionsDr. David Alan Gilbert
saa7164_cmd_signal() last use was removed in 2009 by commit 39e469ab6dee ("V4L/DVB (12940): SAA7164: IRQ / message timeout related change") saa7164_buffer_display() was added in 2010 by commit add3f580a434 ("[media] saa7164: convert buffering structs to be more generic") but is unused. Remove them. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: usbtv: Lock resolution while streamingLudwig Disterhof
When an program is streaming (ffplay) and another program (qv4l2) changes the TV standard from NTSC to PAL, the kernel crashes due to trying to copy to unmapped memory. Changing from NTSC to PAL increases the resolution in the usbtv struct, but the video plane buffer isn't adjusted, so it overflows. Fixes: 0e0fe3958fdd13d ("[media] usbtv: Add support for PAL video source") Cc: stable@vger.kernel.org Signed-off-by: Ludwig Disterhof <ludwig@disterhof.eu> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> [hverkuil: call vb2_is_busy instead of vb2_is_streaming]
2025-06-17media: flexcop-i2c: Constify struct i2c_algorithmChristophe JAILLET
'struct i2c_algorithm' is not modified in this driver. Constifying this structure moves some data to a read-only section, so increase overall security, especially when the structure holds some function pointers. On a x86_64, with allmodconfig, as an example: Before: ====== text data bss dec hex filename 6645 216 16 6877 1add drivers/media/common/b2c2/flexcop-i2c.o After: ===== text data bss dec hex filename 6721 160 16 6897 1af1 drivers/media/common/b2c2/flexcop-i2c.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: v4l2-core: Replace the check for firmware registered I2C devicesAndy Shevchenko
Replace the check for firmware registered I²C devices as the firmware node independently on type should be retrieved via dev_fwnode(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: i2c: max9286: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: i2c: max96717: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: i2c: ds90ub913: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: i2c: ds90ub953: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: solo6x10: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: solo6x10: remove unneeded GPIO direction settersBartosz Golaszewski
GPIO core already handles missing direction_input/output() callbacks. The ones in this driver also effectively return magic numbers which is not optimal either (the number accidentally corresponds with -EPERM which is different from the number GPIOLIB returns and so inconsistent). Just remove them. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: dvb-frontends/cxd2820r: use new GPIO line value setter callbacksBartosz Golaszewski
struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17bus: mhi: host: Make local functions staticManivannan Sadhasivam
These functions were not used outside of the file defining them. So make them static as they should be. Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Link: https://patch.msgid.link/20250617064906.14079-1-mani@kernel.org
2025-06-17net: mana: Allocate MSI-X vectors dynamicallyShradha Gupta
Currently, the MANA driver allocates MSI-X vectors statically based on MANA_MAX_NUM_QUEUES and num_online_cpus() values and in some cases ends up allocating more vectors than it needs. This is because, by this time we do not have a HW channel and do not know how many IRQs should be allocated. To avoid this, we allocate 1 MSI-X vector during the creation of HWC and after getting the value supported by hardware, dynamically add the remaining MSI-X vectors. Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
2025-06-17net: mana: Allow irq_setup() to skip cpus for affinityShradha Gupta
In order to prepare the MANA driver to allocate the MSI-X IRQs dynamically, we need to enhance irq_setup() to allow skipping affinitizing IRQs to the first CPU sibling group. This would be for cases when the number of IRQs is less than or equal to the number of online CPUs. In such cases for dynamically added IRQs the first CPU sibling group would already be affinitized with HWC IRQ. Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
2025-06-17net: mana: explain irq_setup() algorithmYury Norov
Commit 91bfe210e196 ("net: mana: add a function to spread IRQs per CPUs") added the irq_setup() function that distributes IRQs on CPUs according to a tricky heuristic. The corresponding commit message explains the heuristic. Duplicate it in the source code to make available for readers without digging git in history. Also, add more detailed explanation about how the heuristics is implemented. Signed-off-by: Yury Norov <yury.norov@gmail.com> Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
2025-06-17PCI: hv: Allow dynamic MSI-X vector allocationShradha Gupta
Allow dynamic MSI-X vector allocation for pci_hyperv PCI controller by adding support for the flag MSI_FLAG_PCI_MSIX_ALLOC_DYN and using pci_msix_prepare_desc() to prepare the MSI-X descriptors. Feature support added for both x86 and ARM64 Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
generated by cgit v1.2.3 (git 2.25.1) at 2026-05-28 09:10:50 +0000