diff options
Diffstat (limited to 'include/asm-generic/bitops/fls.h')
| -rw-r--r-- | include/asm-generic/bitops/fls.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/asm-generic/bitops/fls.h b/include/asm-generic/bitops/fls.h index 0576d1f42f43..8eed3437edb9 100644 --- a/include/asm-generic/bitops/fls.h +++ b/include/asm-generic/bitops/fls.h @@ -1,15 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_GENERIC_BITOPS_FLS_H_ #define _ASM_GENERIC_BITOPS_FLS_H_ /** - * fls - find last (most-significant) bit set + * generic_fls - find last (most-significant) bit set * @x: the word to search * * This is defined the same way as ffs. * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32. */ -static __always_inline int fls(int x) +static __always_inline __attribute_const__ int generic_fls(unsigned int x) { int r = 32; @@ -38,4 +39,8 @@ static __always_inline int fls(int x) return r; } +#ifndef __HAVE_ARCH_FLS +#define fls(x) generic_fls(x) +#endif + #endif /* _ASM_GENERIC_BITOPS_FLS_H_ */ |