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       1                 :            : /* SPDX-License-Identifier: GPL-2.0 */
       2                 :            : #ifndef _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_
       3                 :            : #define _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_
       4                 :            : 
       5                 :            : /**
       6                 :            :  * fls - find last (most-significant) bit set
       7                 :            :  * @x: the word to search
       8                 :            :  *
       9                 :            :  * This is defined the same way as ffs.
      10                 :            :  * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
      11                 :            :  */
      12                 :            : static __always_inline int fls(unsigned int x)
      13                 :            : {
      14   [ +  +  +  +  :  162794595 :         return x ? sizeof(x) * 8 - __builtin_clz(x) : 0;
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      15                 :            : }
      16                 :            : 
      17                 :            : #endif