linux-kernel - Re: [PATCH] powerpc: Reduce csum

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Message-Id: <165261052038.1047019.18164887384692464073.b4-ty@ellerman.id.au>
Date:   Sun, 15 May 2022 20:28:40 +1000
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Christophe Leroy <christophe.leroy@...roup.eu>,
        Michael Ellerman <mpe@...erman.id.au>,
        Paul Mackerras <paulus@...ba.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] powerpc: Reduce csum_add() complexity for PPC64

On Sat, 12 Feb 2022 08:36:17 +0100, Christophe Leroy wrote:
> PPC64 does everything in C, gcc is able to skip calculation
> when one of the operands in zero.
> 
> Move the constant folding in PPC32 part.
> 
> This helps GCC and reduces ppc64_defconfig by 170 bytes.
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc: Reduce csum_add() complexity for PPC64
      https://git.kernel.org/powerpc/c/f206fdd9d41bf7deb96219b8ca3499a5abd79b83

cheers