diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-05-10 11:43:46 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-05-10 11:43:46 -0700 |
| commit | 2a267e7c41aa88215de2b542de797d03d16ecdfd (patch) | |
| tree | b949270835e304c8b60a40cde1b2c2e19c13b33a /include/linux/compiler.h | |
| parent | 0981949da8f7498b96c6e0ae60680865ca283bf1 (diff) | |
| parent | e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd (diff) | |
| download | cachepc-linux-2a267e7c41aa88215de2b542de797d03d16ecdfd.tar.gz cachepc-linux-2a267e7c41aa88215de2b542de797d03d16ecdfd.zip | |
Merge tag 'v5.1' into next
Sync up with mainline to bring in the latest APIs.
Diffstat (limited to 'include/linux/compiler.h')
| -rw-r--r-- | include/linux/compiler.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index fc5004a4b07d..445348facea9 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -161,7 +161,9 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val, #endif #ifndef OPTIMIZER_HIDE_VAR -#define OPTIMIZER_HIDE_VAR(var) barrier() +/* Make the optimizer believe the variable can be manipulated arbitrarily. */ +#define OPTIMIZER_HIDE_VAR(var) \ + __asm__ ("" : "=r" (var) : "0" (var)) #endif /* Not-quite-unique ID. */ |