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| author | Michael Bestas <mkbestas@lineageos.org> | 2020-11-15 21:52:06 +0200 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2020-11-15 21:52:18 +0200 |
| commit | 6107aa6dc24cc8c196bb18e5b5ec81f8f1a275a8 (patch) | |
| tree | ef508ed8340c5d6b615c713d1569d851964091f2 /include/linux/compiler.h | |
| parent | 298504ed68065a61d0fc1d7969af19ecf2136ac9 (diff) | |
| parent | 34b1d1174c2c7054c01cfa39d274421d80649386 (diff) | |
Merge branch 'android-4.4-p' of https://android.googlesource.com/kernel/common into lineage-17.1-caf-msm8998
This brings LA.UM.8.2.r1-07400-sdm660.0 up to date with
https://android.googlesource.com/kernel/common/ android-4.4-p at commit:
34b1d1174c2c7 UPSTREAM: arm64: kaslr: Fix up the kernel image alignment
Conflicts:
scripts/setlocalversion
Change-Id: Id2981587a6e92eb10cfdc9b6d13cd4bd2abb5670
Diffstat (limited to 'include/linux/compiler.h')
| -rw-r--r-- | include/linux/compiler.h | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index e5d349d65ae9..7cabe0cc8665 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -241,23 +241,21 @@ void __read_once_size(const volatile void *p, void *res, int size) #ifdef CONFIG_KASAN /* - * This function is not 'inline' because __no_sanitize_address confilcts + * We can't declare function 'inline' because __no_sanitize_address confilcts * with inlining. Attempt to inline it may cause a build failure. * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368 * '__maybe_unused' allows us to avoid defined-but-not-used warnings. */ -static __no_sanitize_address __maybe_unused -void __read_once_size_nocheck(const volatile void *p, void *res, int size) -{ - __READ_ONCE_SIZE; -} +# define __no_kasan_or_inline __no_sanitize_address __maybe_unused #else -static __always_inline +# define __no_kasan_or_inline __always_inline +#endif + +static __no_kasan_or_inline void __read_once_size_nocheck(const volatile void *p, void *res, int size) { __READ_ONCE_SIZE; } -#endif static __always_inline void __write_once_size(volatile void *p, void *res, int size) { @@ -294,6 +292,7 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s * with an explicit memory barrier or atomic instruction that provides the * required ordering. */ +#include <linux/kasan-checks.h> #define __READ_ONCE(x, check) \ ({ \ @@ -312,6 +311,13 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s */ #define READ_ONCE_NOCHECK(x) __READ_ONCE(x, 0) +static __no_kasan_or_inline +unsigned long read_word_at_a_time(const void *addr) +{ + kasan_check_read(addr, 1); + return *(unsigned long *)addr; +} + #define WRITE_ONCE(x, val) \ ({ \ union { typeof(x) __val; char __c[1]; } __u = \ |