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| author | Hauke Mehrtens <hauke@hauke-m.de> | 2022-04-03 17:58:16 +0200 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2022-04-10 19:34:26 +0200 |
| commit | ca0cd5748ee9cec5b0ec059415fa418f2e389d98 (patch) | |
| tree | 4ff467b08b52c4ea3a6d2e1004f6f84500534688 | |
| parent | 614bdfc343c007c83e787fc461a35602a4b544f5 (diff) | |
| download | backports-ca0cd5748ee9cec5b0ec059415fa418f2e389d98.tar.gz | |
headers: Add data_race(expr)
This define is just a hint for the compiler that it should ignore the
data race.
It was added to mainline Linux kernel in commit c48981eeb0d5
("include/linux/compiler.h: Introduce data_race(expr) macro") with
kernel 5.8 to provide a hint to the compiler and the reviewer that there
is an intentional data race.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
| -rw-r--r-- | backport/backport-include/linux/compiler.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/backport/backport-include/linux/compiler.h b/backport/backport-include/linux/compiler.h index 51a6ec2c..820e6046 100644 --- a/backport/backport-include/linux/compiler.h +++ b/backport/backport-include/linux/compiler.h @@ -94,4 +94,8 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s #define OPTIMIZER_HIDE_VAR(var) barrier() #endif +#ifndef data_race +#define data_race(expr) (expr) +#endif + #endif /* __BACKPORT_LINUX_COMPILER_H */ |