Re: [PATCH v2] LoongArch/crypto: Clean up useless assignment operations

From: Herbert Xu
Date: Fri Mar 08 2024 - 05:19:22 EST


WangYuli <wangyuli@xxxxxxxxxxxxx> wrote:
> The LoongArch CRC32 hw acceleration is based on
> arch/mips/crypto/crc32-mips.c. While the MIPS code supports both
> MIPS32 and MIPS64, LA32 lacks the CRC instruction. As a result,
> "line len -= sizeof(u32)" is unnecessary.
>
> Removing it can make context code style more unified and improve
> code readability.
>
> Suggested-by: Guan Wentao <guanwentao@xxxxxxxxxxxxx>
> Signed-off-by: WangYuli <wangyuli@xxxxxxxxxxxxx>
> ---
> arch/loongarch/crypto/crc32-loongarch.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/arch/loongarch/crypto/crc32-loongarch.c b/arch/loongarch/crypto/crc32-loongarch.c
> index a49e507af38c..3eebea3a7b47 100644
> --- a/arch/loongarch/crypto/crc32-loongarch.c
> +++ b/arch/loongarch/crypto/crc32-loongarch.c
> @@ -44,7 +44,6 @@ static u32 crc32_loongarch_hw(u32 crc_, const u8 *p, unsigned int len)
>
> CRC32(crc, value, w);
> p += sizeof(u32);
> - len -= sizeof(u32);
> }

This makes no sense whatsoever. Please review this patch carefully
before you resubmit.

Thanks,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt