diff options
| author | Takashi Iwai <tiwai@suse.de> | 2013-10-19 22:31:14 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-10-19 22:31:14 +0200 |
| commit | 20c87bd40e6c1ff7e31cc5eea4fb37829a57eb58 (patch) | |
| tree | 528c2f113e428e060e185ccab7eab8d8e87c7d36 /include/linux/compiler-gcc4.h | |
| parent | d14df339c72b6efbba4eddd1d1f3f4b173273f74 (diff) | |
| parent | 40f8989695660dee984338861ca9900b8e0b5183 (diff) | |
Merge tag 'asoc-v3.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.12
A number of small, fairly unexciting, fixes for drivers - nothing stand
out.
Diffstat (limited to 'include/linux/compiler-gcc4.h')
| -rw-r--r-- | include/linux/compiler-gcc4.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h index 842de225055..ded429966c1 100644 --- a/include/linux/compiler-gcc4.h +++ b/include/linux/compiler-gcc4.h @@ -65,6 +65,21 @@ #define __visible __attribute__((externally_visible)) #endif +/* + * GCC 'asm goto' miscompiles certain code sequences: + * + * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670 + * + * Work it around via a compiler barrier quirk suggested by Jakub Jelinek. + * Fixed in GCC 4.8.2 and later versions. + * + * (asm goto is automatically volatile - the naming reflects this.) + */ +#if GCC_VERSION <= 40801 +# define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0) +#else +# define asm_volatile_goto(x...) do { asm goto(x); } while (0) +#endif #ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP #if GCC_VERSION >= 40400 |