linux-kernel - Re: [PATCH 01/11] powerpc: remove dead ifdefs in <asm/checksum.h>

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Date:   Fri, 15 Feb 2019 09:17:43 +0100
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Christoph Hellwig <hch@....de>
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-xtensa@...ux-xtensa.org, linux-s390@...r.kernel.org,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 01/11] powerpc: remove dead ifdefs in <asm/checksum.h>



Le 14/02/2019 à 18:05, Christoph Hellwig a écrit :
> On Thu, Feb 14, 2019 at 09:26:19AM +0100, Christophe Leroy wrote:
>> Could you also remove the 'config GENERIC_CSUM' item in
>> arch/powerpc/Kconfig ?
> 
> All the separate declarations go away later in this series.
> 

I saw, but the purpose of the later patch is to replace arch defined 
GENERIC_CSUM by a common one that arches select. For the powerpc you are 
not in that case as the powerpc does not select GENERIC_CSUM.

So I really believe that all stale bits of remaining GENERIC_CSUM in 
powerpc should go away as a single dedicated patch, as a fix of commit 
d4fde568a34a ("powerpc/64: Use optimized checksum routines on 
little-endian")

Regarding the #ifdef __KERNEL__ , I think we should do a wide cleanup in 
arch/powerpc/include/asm, not only asm/checksum.h

Christophe