linux-kernel - Re: [PATCH] loongarch/crypto: Clean up useless assignment operations

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CAAhV-H4CXW5Lkn1=hMnMbcY3MO2eoos8bSr3Z5jY_piAbpP+5A@mail.gmail.com>
Date: Thu, 29 Feb 2024 11:05:22 +0800
From: Huacai Chen <chenhuacai@...nel.org>
To: WangYuli <wangyuli@...ontech.com>
Cc: herbert@...dor.apana.org.au, davem@...emloft.net, kernel@...0n.name, 
	linux-crypto@...r.kernel.org, loongarch@...ts.linux.dev, 
	linux-kernel@...r.kernel.org, Guan Wentao <guanwentao@...ontech.com>
Subject: Re: [PATCH] loongarch/crypto: Clean up useless assignment operations

Hi, Yuli,

The code is fine to me, please change loongarch to LoongArch in the
subject, and update your commit message with Xuerui's review in V2.

Huacai

On Mon, Feb 26, 2024 at 4:04 PM WangYuli <wangyuli@...ontech.com> wrote:
>
> Both crc32 and crc32c hw accelerated funcs will calculate the
> remaining len. Those codes are derived from
> arch/mips/crypto/crc32-mips.c and "len -= sizeof(u32)" is not
> necessary for 64-bit CPUs.
>
> Removing it can make context code style more unified and improve
> code readability.
>
> Suggested-by: Guan Wentao <guanwentao@...ontech.com>
> Signed-off-by: WangYuli <wangyuli@...ontech.com>
> ---
>  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);
>         }
>
>         if (len & sizeof(u16)) {
> @@ -80,7 +79,6 @@ static u32 crc32c_loongarch_hw(u32 crc_, const u8 *p, unsigned int len)
>
>                 CRC32C(crc, value, w);
>                 p += sizeof(u32);
> -               len -= sizeof(u32);
>         }
>
>         if (len & sizeof(u16)) {
> --
> 2.33.1
>