| Catalin Marinas | 048fa2d | 2012-09-12 22:00:53 +0100 | [diff] [blame] | 1 | #ifndef _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_ |
| 2 | #define _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_ | ||||
| 3 | |||||
| 4 | /** | ||||
| 5 | * __ffs - find first bit in word. | ||||
| 6 | * @word: The word to search | ||||
| 7 | * | ||||
| 8 | * Undefined if no bit exists, so code should check against 0 first. | ||||
| 9 | */ | ||||
| 10 | static __always_inline unsigned long __ffs(unsigned long word) | ||||
| 11 | { | ||||
| 12 | return __builtin_ctzl(word); | ||||
| 13 | } | ||||
| 14 | |||||
| 15 | #endif | ||||