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Andrey Konovalov 36c15efc62 UPSTREAM: kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK 
[ Upstream commit d56a9ef84b ]

There's a config option CONFIG_KASAN_STACK that has to be enabled for
KASAN to use stack instrumentation and perform validity checks for
stack variables.

There's no need to unpoison stack when CONFIG_KASAN_STACK is not enabled.
Only call kasan_unpoison_task_stack[_below]() when CONFIG_KASAN_STACK is
enabled.

Note, that CONFIG_KASAN_STACK is an option that is currently always
defined when CONFIG_KASAN is enabled, and therefore has to be tested
with #if instead of #ifdef.

Link: https://lkml.kernel.org/r/d09dd3f8abb388da397fd11598c5edeaa83fe559.1606162397.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 172318110
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Change-Id: I776d0e42a0b7238e1c810838f37d549a07af4582
2021-01-19 21:47:31 -08:00
..
acpi PM: ACPI: PCI: Drop acpi_pm_set_bridge_wakeup() 2020-12-30 11:54:05 +01:00
asm-generic ANDROID: add support for Clang's Control Flow Integrity (CFI) 2021-01-14 16:28:57 +00:00
clocksource
crypto
drm Merge 65b55d4c85 ("Merge tag 'arm-soc-fixes-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc") into android-mainline 2020-11-02 11:04:03 +01:00
dt-bindings Merge 38525c6919 ("Merge tag 'for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply") into android-mainline 2020-10-26 10:16:46 +01:00
keys
kunit kunit: fix display of failed expectations for strings 2020-11-10 13:45:15 -07:00
kvm ARM: 2020-10-23 11:17:56 -07:00
linux UPSTREAM: kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK 2021-01-19 21:47:31 -08:00
math-emu
media Merge 5.10.4 into android12-5.10 2020-12-30 12:47:03 +01:00
memory
misc
net Merge 5.10.8 into android12-5.10 2021-01-19 09:33:21 +01:00
pcmcia
ras
rdma RDMA/core: remove use of dma_virt_ops 2021-01-09 13:46:24 +01:00
scsi scsi: libiscsi: Fix NOP race condition 2020-11-16 22:32:50 -05:00
soc net: mscc: ocelot: fix dropping of unknown IPv4 multicast on Seville 2020-12-05 15:41:34 -08:00
sound Merge 27bba9c532 ("Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi") into android-mainline 2020-11-22 10:00:49 +01:00
target
trace ANDROID: schedutil: add vendor hook for adjusting util to freq calculation 2021-01-19 20:33:51 +00:00
uapi Merge 5.10.7 into android12-5.10 2021-01-13 10:29:42 +01:00
vdso
video gpu: ipu-v3: remove unused functions 2020-10-26 10:42:38 +01:00
xen xen/xenbus: Count pending messages for each watch 2020-12-30 11:54:27 +01:00