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| author | Tony Lindgren <tony@atomide.com> | 2021-01-15 12:48:43 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2021-01-15 12:48:43 +0200 |
| commit | 715a1284d89a740b197b3bad5eb20d36a397382f (patch) | |
| tree | 07ad2960ab66e56b3d1e151036262019a18e3df1 /arch/arm/kernel/unwind.c | |
| parent | 181739822cf6f8f4e12b173913af2967a28906c0 (diff) | |
| parent | 06862d789ddde8a99c1e579e934ca17c15a84755 (diff) | |
| download | linux-715a1284d89a740b197b3bad5eb20d36a397382f.tar.gz linux-715a1284d89a740b197b3bad5eb20d36a397382f.tar.bz2 linux-715a1284d89a740b197b3bad5eb20d36a397382f.zip | |
Merge branch 'cpuidle-fix' into fixes
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; } |