root/arch/arm/include/asm/bitrev.h

INCLUDED FROM

DEFINITIONS

1. __arch_bitrev32
2. __arch_bitrev16
3. __arch_bitrev8

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_BITREV_H
   3 #define __ASM_BITREV_H
   4 
   5 static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
   6 {
   7         __asm__ ("rbit %0, %1" : "=r" (x) : "r" (x));
   8         return x;
   9 }
  10 
  11 static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x)
  12 {
  13         return __arch_bitrev32((u32)x) >> 16;
  14 }
  15 
  16 static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
  17 {
  18         return __arch_bitrev32((u32)x) >> 24;
  19 }
  20 
  21 #endif