#ifndef _ASM_GENERIC_BITOPS_FFZ_H_
  #define _ASM_GENERIC_BITOPS_FFZ_H_
  
  /*
   * ffz - find first zero in word.
   * @word: The word to search
   *
   * Undefined if no zero exists, so code should check against ~0UL first.
   */
  #define ffz(x)  __ffs(~(x))
  
  #endif /* _ASM_GENERIC_BITOPS_FFZ_H_ */