linux-kernel - Re: [PATCH] powerpc/bitops: Force inlining of fls()

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Message-Id: <164708098783.827774.9289683232577719958.b4-ty@ellerman.id.au>
Date:   Sat, 12 Mar 2022 21:29:47 +1100
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/bitops: Force inlining of fls()

On Fri, 11 Feb 2022 09:51:32 +0100, Christophe Leroy wrote:
> Building a kernel with CONFIG_CC_OPTIMISE_FOR_SIZE leads to
> the following functions being copied several times in vmlinux:
> 
> 	31 times __ilog2_u32()
> 	34 times fls()
> 
> Disassembly follows:
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/bitops: Force inlining of fls()
      https://git.kernel.org/powerpc/c/0b0057cc4193c7cd9c0829a440e4901b29ce4ff8

cheers