diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-01-06 09:53:05 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-06 09:53:05 +0100 |
| commit | 3d7a96f5a485b7d06c2379f343d7312af89ec9e2 (patch) | |
| tree | 5f097f68eb0f9fd3fa4a10f38672e300e9127b10 /include/asm-xtensa/bitops.h | |
| parent | 723cbe0775514853c22dc45005af59c360916af1 (diff) | |
| parent | 238c6d54830c624f34ac9cf123ac04aebfca5013 (diff) | |
| download | kernel_samsung_smdk4412-3d7a96f5a485b7d06c2379f343d7312af89ec9e2.zip kernel_samsung_smdk4412-3d7a96f5a485b7d06c2379f343d7312af89ec9e2.tar.gz kernel_samsung_smdk4412-3d7a96f5a485b7d06c2379f343d7312af89ec9e2.tar.bz2 | |
Merge branch 'linus' into tracing/kmemtrace2
Diffstat (limited to 'include/asm-xtensa/bitops.h')
| -rw-r--r-- | include/asm-xtensa/bitops.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-xtensa/bitops.h b/include/asm-xtensa/bitops.h index 23261e8..6c39303 100644 --- a/include/asm-xtensa/bitops.h +++ b/include/asm-xtensa/bitops.h @@ -82,6 +82,16 @@ static inline int fls (unsigned int x) return 32 - __cntlz(x); } +/** + * __fls - find last (most-significant) set bit in a long word + * @word: the word to search + * + * Undefined if no set bit exists, so code should check against 0 first. + */ +static inline unsigned long __fls(unsigned long word) +{ + return 31 - __cntlz(word); +} #else /* Use the generic implementation if we don't have the nsa/nsau instructions. */ @@ -90,6 +100,7 @@ static inline int fls (unsigned int x) # include <asm-generic/bitops/__ffs.h> # include <asm-generic/bitops/ffz.h> # include <asm-generic/bitops/fls.h> +# include <asm-generic/bitops/__fls.h> #endif |