diff options
Diffstat (limited to 'include/asm-generic/bitops/fls64.h')
| -rw-r--r-- | include/asm-generic/bitops/fls64.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-generic/bitops/fls64.h b/include/asm-generic/bitops/fls64.h new file mode 100644 index 000000000000..716c51e0dd4c --- /dev/null +++ b/include/asm-generic/bitops/fls64.h @@ -0,0 +1,12 @@ +#ifndef _ASM_GENERIC_BITOPS_FLS64_H_ +#define _ASM_GENERIC_BITOPS_FLS64_H_ + +static inline int fls64(__u64 x) +{ + __u32 h = x >> 32; + if (h) + return fls(h) + 32; + return fls(x); +} + +#endif /* _ASM_GENERIC_BITOPS_FLS64_H_ */ |