LXR linux/include/asm-generic/bitops/builtin-ffs.h

   1#ifndef _ASM_GENERIC_BITOPS_BUILTIN_FFS_H_
   2#define _ASM_GENERIC_BITOPS_BUILTIN_FFS_H_
   3
   4/**
   5 * ffs - find first bit set
   6 * @x: the word to search
   7 *
   8 * This is defined the same way as
   9 * the libc and compiler builtin ffs routines, therefore
  10 * differs in spirit from the above ffz (man ffs).
  11 */
  12static __always_inline int ffs(int x)
  13{
  14        return __builtin_ffs(x);
  15}
  16
  17#endif
  18