#ifndef _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_#define _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_/** * __ffs - find first bit in word. * @word: The word to search * * Undefined if no bit exists, so code should check against 0 first. */static __always_inline unsigned long__ffs(unsigned long word){return__builtin_ctzl(word);}#endif