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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-28 08:13:52 +0100 |
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| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-28 08:13:52 +0100 |
| commit | fdddcfd9c93c6db006004fa5ba7fd9380e721c3f (patch) | |
| tree | 4d029f3bd29be07eac87bcfad3bd7e3012fb9428 /include/linux/compiler.h | |
| parent | f9f7bb9e0a0ca33f65a3deae9ec5e07266908fc5 (diff) | |
| parent | f17b5f06cb92ef2250513a1e154c47b78df07d40 (diff) | |
| download | cachepc-linux-fdddcfd9c93c6db006004fa5ba7fd9380e721c3f.tar.gz cachepc-linux-fdddcfd9c93c6db006004fa5ba7fd9380e721c3f.zip | |
Merge 5.0-rc4 into char-misc-next
We need the char-misc fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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. */ |