linux-stable.git/arch/arm, branch v4.4.280

ARM: ensure the signal page contains defined contents

2021-08-04T09:56:45+00:00

commit 9c698bff66ab4914bb3d71da7dc6112519bde23e upstream.

Ensure that the signal page contains our poison instruction to increase
the protection against ROP attacks and also contains well defined
contents.

Acked-by: Will Deacon 
Signed-off-by: Russell King 
Signed-off-by: Nobuhiro Iwamatsu (CIP) 
Signed-off-by: Greg Kroah-Hartman

ARM: dts: versatile: Fix up interrupt controller node names

2021-08-04T09:56:45+00:00

[ Upstream commit 82a1c67554dff610d6be4e1982c425717b3c6a23 ]

Once the new schema interrupt-controller/arm,vic.yaml is added, we get
the below warnings:

        arch/arm/boot/dts/versatile-ab.dt.yaml:
        intc@10140000: $nodename:0: 'intc@10140000' does not match
        '^interrupt-controller(@[0-9a-f,]+)*$'

	arch/arm/boot/dts/versatile-ab.dt.yaml:
	intc@10140000: 'clear-mask' does not match any of the regexes

Fix the node names for the interrupt controller to conform
to the standard node name interrupt-controller@.. Also drop invalid
clear-mask property.

Signed-off-by: Sudeep Holla 
Acked-by: Linus Walleij 
Link: https://lore.kernel.org/r/20210701132118.759454-1-sudeep.holla@arm.com'
Signed-off-by: Arnd Bergmann 
Signed-off-by: Sasha Levin

ARM: imx: pm-imx5: Fix references to imx5_cpu_suspend_info

2021-07-28T07:12:33+00:00

[ Upstream commit 89b759469d525f4d5f9c29cd3b1f490311c67f85 ]

The name of the struct, as defined in arch/arm/mach-imx/pm-imx5.c,
is imx5_cpu_suspend_info.

Signed-off-by: Jonathan Neuschäfer 
Reviewed-by: Fabio Estevam 
Signed-off-by: Shawn Guo 
Signed-off-by: Sasha Levin

ARM: dts: imx6: phyFLEX: Fix UART hardware flow control

2021-07-28T07:12:33+00:00

[ Upstream commit 14cdc1f243d79e0b46be150502b7dba9c5a6bdfd ]

Serial interface uart3 on phyFLEX board is capable of 5-wire connection
including signals RTS and CTS for hardware flow control.

Fix signals UART3_CTS_B and UART3_RTS_B padmux assignments and add
missing property "uart-has-rtscts" to allow serial interface to be
configured and used with the hardware flow control.

Signed-off-by: Primoz Fiser 
Signed-off-by: Shawn Guo 
Signed-off-by: Sasha Levin

ARM: dts: BCM63xx: Fix NAND nodes names

2021-07-28T07:12:33+00:00

[ Upstream commit 75e2f012f6e34b93124d1d86eaa8f27df48e9ea0 ]

This matches nand-controller.yaml requirements.

Signed-off-by: Rafał Miłecki 
Signed-off-by: Florian Fainelli 
Signed-off-by: Sasha Levin

ARM: brcmstb: dts: fix NAND nodes names

2021-07-28T07:12:33+00:00

[ Upstream commit 9a800ce1aada6e0f56b78e4713f4858c8990c1f7 ]

This matches nand-controller.yaml requirements.

Signed-off-by: Rafał Miłecki 
Signed-off-by: Florian Fainelli 
Signed-off-by: Sasha Levin

ARM: dts: exynos: fix PWM LED max brightness on Odroid XU4

2021-07-20T14:22:43+00:00

[ Upstream commit fd2f1717966535b7d0b6fe45cf0d79e94330da5f ]

There is no "max_brightness" property as pointed out by dtschema:

  arch/arm/boot/dts/exynos5422-odroidxu4.dt.yaml: led-controller: led-1: 'max-brightness' is a required property

Fixes: 6658356014cb ("ARM: dts: Add support Odroid XU4 board for exynos5422-odroidxu4")
Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20210505135941.59898-5-krzysztof.kozlowski@canonical.com
Signed-off-by: Sasha Levin

ARM: 9087/1: kprobes: test-thumb: fix for LLVM_IAS=1

2021-07-20T14:22:42+00:00

[ Upstream commit 8b95a7d90ce8160ac5cffd5bace6e2eba01a871e ]

There's a few instructions that GAS infers operands but Clang doesn't;
from what I can tell the Arm ARM doesn't say these are optional.

F5.1.257 TBB, TBH T1 Halfword variant
F5.1.238 STREXD T1 variant
F5.1.84 LDREXD T1 variant

Link: https://github.com/ClangBuiltLinux/linux/issues/1309

Signed-off-by: Nick Desaulniers 
Reviewed-by: Jian Cai 
Signed-off-by: Russell King 
Signed-off-by: Sasha Levin

ARM: dts: at91: sama5d4: fix pinctrl muxing

2021-07-20T14:22:30+00:00

commit 253adffb0e98eaf6da2e7cf73ae68695e21f2f3c upstream.

Fix pinctrl muxing, PD28, PD29 and PD31 can be muxed to peripheral A. It
allows to use SCK0, SCK1 and SPI0_NPCS2 signals.

Signed-off-by: Ludovic Desroches 
Fixes: 679f8d92bb01 ("ARM: at91/dt: sama5d4: add pioD pin mux mask and enable pioD")
Cc: stable@vger.kernel.org # v4.4+
Reviewed-by: Claudiu Beznea 
Signed-off-by: Nicolas Ferre 
Link: https://lore.kernel.org/r/20191025084210.14726-1-ludovic.desroches@microchip.com
Signed-off-by: Greg Kroah-Hartman

arm: kprobes: Allow to handle reentered kprobe on single-stepping

2021-07-11T10:45:27+00:00

commit f3fbd7ec62dec1528fb8044034e2885f2b257941 upstream.

This is arm port of commit 6a5022a56ac3 ("kprobes/x86: Allow to
handle reentered kprobe on single-stepping")

Since the FIQ handlers can interrupt in the single stepping
(or preparing the single stepping, do_debug etc.), we should
consider a kprobe is hit in the NMI handler. Even in that
case, the kprobe is allowed to be reentered as same as the
kprobes hit in kprobe handlers
(KPROBE_HIT_ACTIVE or KPROBE_HIT_SSDONE).

The real issue will happen when a kprobe hit while another
reentered kprobe is processing (KPROBE_REENTER), because
we already consumed a saved-area for the previous kprobe.

Signed-off-by: Masami Hiramatsu 
Signed-off-by: Jon Medhurst 
Fixes: 24ba613c9d6c ("ARM kprobes: core code")
Cc: stable@vger.kernel.org #v2.6.25~v4.11
Signed-off-by: huangshaobo 
Signed-off-by: Greg Kroah-Hartman