| #ifndef _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_ | |
| #define _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_ | |
| /** | |
| * 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) | |
| { | |
| return x ? sizeof(x) * 8 - __builtin_clz(x) : 0; | |
| } | |
| #endif |