linux-kernel - Re: [v2] powerpc/32: Move the old 6xx -mcpu logic before the TARGET

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Message-Id: <43MLSV0PQYz9sNJ@ozlabs.org>
Date:   Sat, 22 Dec 2018 20:54:33 +1100 (AEDT)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Mathieu Malaterre <malat@...ian.org>
Cc:     Mathieu Malaterre <malat@...ian.org>, linux-kernel@...r.kernel.org,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [v2] powerpc/32: Move the old 6xx -mcpu logic before the TARGET_CPU logic

On Wed, 2018-12-05 at 17:53:55 UTC, Mathieu Malaterre wrote:
> The code:
> 
>   ifdef CONFIG_6xx
>   KBUILD_CFLAGS          += -mcpu=powerpc
>   endif
> 
> was added in 2006 in commit f48b8296b315 ("[PATCH] powerpc32: Set cpu
> explicitly in kernel compiles"). This change was acceptable since the
> TARGET_CPU logic was 64-bit only.
> 
> Since commit 0e00a8c9fd92 ("powerpc: Allow CPU selection
> also on PPC32") this logic is no longer acceptable after the TARGET_CPU
> specific. It currently appends -mcpu=powerpc at the end of the command
> line, after any TARGET_CPU specific:
> 
>   gcc -Wp,-MD,init/.do_mounts.o.d ...
>     -mcpu=powerpc -mbig-endian -m32 ...
>     -mcpu=e300c2 ...
>     -mcpu=powerpc ...
>     ../init/do_mounts.c
> 
> Cc: Christophe Leroy <christophe.leroy@....fr>
> Fixes: 0e00a8c9fd92 ("powerpc: Allow CPU selection also on PPC32")
> Suggested-by: Michael Ellerman <mpe@...erman.id.au>
> Link: https://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/msg142315.html
> Signed-off-by: Mathieu Malaterre <malat@...ian.org>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/ebd1d3b74f8542a8f3bb80b453692d

cheers