Commit 17fcc4bd authored by Xi Ruoyao's avatar Xi Ruoyao Committed by Huacai Chen
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LoongArch: Simplify __arch_bitrev32() implementation 



LoongArch has the bitrev.w instruction to reverse bits in a 32-bit
integer, thus there's no need to reverse the bytes and use bitrev.4b.

Signed-off-by: default avatarXi Ruoyao <xry111@xry111.site>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent 10eda1c5

arch/loongarch/include/asm/bitrev.h

+1 −1
Original line number Diff line number Diff line
@@ -11,7 +11,7 @@ static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x) 
{

	u32 ret;



	asm("bitrev.4b	%0, %1" : "=r"(ret) : "r"(__swab32(x)));

	asm("bitrev.w	%0, %1" : "=r"(ret) : "r"(x));

	return ret;

}