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bitrev.h « asm « include « arm64 « arch - github.com/torvalds/linux.git - Unnamed repository; edit this file 'description' to name the repository.
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_BITREV_H
#define __ASM_BITREV_H
static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
{
	__asm__ ("rbit %w0, %w1" : "=r" (x) : "r" (x));
	return x;
}

static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x)
{
	return __arch_bitrev32((u32)x) >> 16;
}

static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
{
	return __arch_bitrev32((u32)x) >> 24;
}

#endif