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| author | Russell King <rmk+kernel@armlinux.org.uk> | 2020-12-21 11:19:24 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2020-12-21 11:19:24 +0000 |
| commit | 8cc9251737d1883e33fd0a7dafbd4062916c1ca6 (patch) | |
| tree | 6a1901ccbce167330049ce9b2afced122b325c4a /arch/arm/kernel/unwind.c | |
| parent | e64ab473dddaffdfc4bd0b385204f472f2cb00d6 (diff) | |
| parent | 10fce53c0ef8f6e79115c3d9e0d7ea1338c3fa37 (diff) | |
| download | linux-8cc9251737d1883e33fd0a7dafbd4062916c1ca6.tar.gz linux-8cc9251737d1883e33fd0a7dafbd4062916c1ca6.tar.bz2 linux-8cc9251737d1883e33fd0a7dafbd4062916c1ca6.zip | |
Merge branches 'fixes' and 'misc' into for-next
Diffstat (limited to 'arch/arm/kernel/unwind.c')
| -rw-r--r-- | arch/arm/kernel/unwind.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/arm/kernel/unwind.c b/arch/arm/kernel/unwind.c index d2bd0df2318d..59fdf257bf8b 100644 --- a/arch/arm/kernel/unwind.c +++ b/arch/arm/kernel/unwind.c @@ -18,9 +18,6 @@ #warning Your compiler does not have EABI support. #warning ARM unwind is known to compile only with EABI compilers. #warning Change compiler or disable ARM_UNWIND option. -#elif (__GNUC__ == 4 && __GNUC_MINOR__ <= 2) && !defined(__clang__) -#warning Your compiler is too buggy; it is known to not compile ARM unwind support. -#warning Change compiler or disable ARM_UNWIND option. #endif #endif /* __CHECKER__ */ @@ -236,7 +233,11 @@ static int unwind_pop_register(struct unwind_ctrl_block *ctrl, if (*vsp >= (unsigned long *)ctrl->sp_high) return -URC_FAILURE; - ctrl->vrs[reg] = *(*vsp)++; + /* Use READ_ONCE_NOCHECK here to avoid this memory access + * from being tracked by KASAN. + */ + ctrl->vrs[reg] = READ_ONCE_NOCHECK(*(*vsp)); + (*vsp)++; return URC_OK; } |