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| author | James Morris <james.l.morris@oracle.com> | 2014-04-14 11:23:14 +1000 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2014-04-14 11:23:14 +1000 |
| commit | ecd740c6f2f092b90b95fa35f757973589eaaca2 (patch) | |
| tree | ce02b1e18c4fc5729699251460cd8be7604d8401 /include/linux/compiler-gcc.h | |
| parent | f64410ec665479d7b4b77b7519e814253ed0f686 (diff) | |
| parent | 455c6fdbd219161bd09b1165f11699d6d73de11c (diff) | |
Merge commit 'v3.14' into next
Diffstat (limited to 'include/linux/compiler-gcc.h')
| -rw-r--r-- | include/linux/compiler-gcc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index 24545cd90a2..02ae99e8e6d 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -37,6 +37,9 @@ __asm__ ("" : "=r"(__ptr) : "0"(ptr)); \ (typeof(ptr)) (__ptr + (off)); }) +/* Make the optimizer believe the variable can be manipulated arbitrarily. */ +#define OPTIMIZER_HIDE_VAR(var) __asm__ ("" : "=r" (var) : "0" (var)) + #ifdef __CHECKER__ #define __must_be_array(arr) 0 #else |