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| author | Xi Ruoyao <xry111@xry111.site> | 2025-12-06 10:39:39 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2025-12-06 10:39:39 +0800 |
| commit | 17fcc4bd7edcd74bae286754ac3a377c9886b3fd (patch) | |
| tree | 517ff5a88369ae15b892dac264e710ea789f47af | |
| parent | 10eda1c51cbbd7f3f9f1f481b6725105aca4982a (diff) | |
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: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
| -rw-r--r-- | arch/loongarch/include/asm/bitrev.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/loongarch/include/asm/bitrev.h b/arch/loongarch/include/asm/bitrev.h index 46f275b9cdf7..757738ea38d7 100644 --- a/arch/loongarch/include/asm/bitrev.h +++ b/arch/loongarch/include/asm/bitrev.h @@ -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; } |