linux-kernel - Re: [PATCH 1/2] kbuild: Add "Section mismatch" warning whitelist for powerpc

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Date:	Tue, 15 May 2007 05:47:34 +0530
From:	"Satyam Sharma" <satyam.sharma@...il.com>
To:	"Kumar Gala" <galak@...nel.crashing.org>
Cc:	"Sam Ravnborg" <sam@...nborg.org>, "Li Yang" <leoli@...escale.com>,
	Linus <torvalds@...ux-foundation.org>,
	"Andrew Morton" <akpm@...l.org>,
	"Linux Kernel" <linux-kernel@...r.kernel.org>,
	linuxppc-dev@...abs.org
Subject: Re: [PATCH 1/2] kbuild: Add "Section mismatch" warning whitelist for powerpc

Hi,

On 5/14/07, Kumar Gala <galak@...nel.crashing.org> wrote:
>
> On May 14, 2007, at 6:06 AM, Sam Ravnborg wrote:
>
> > On Mon, May 14, 2007 at 06:53:32PM +0800, Li Yang wrote:
> >> This patch fixes the following "Section mismatch" warnings when
> >> build powerpc platforms.
> >>
> >> -------------
> >> WARNING: arch/powerpc/mm/built-in.o - Section mismatch: reference to
> >> .init.text:early_get_page from .text between
> >> 'pte_alloc_one_kernel' (at
> >> offset 0xc68) and 'pte_alloc_one'
> >> WARNING: mm/built-in.o - Section mismatch: reference to
> >> .init.text:set_up_list3s from .text between
> >> 'kmem_cache_create' (at offset
> >> 0x20300) and 'cache_reap'
> >> -------------
>
> This warnings should be handled by __init_refok instead.

Actually, once __init_refok comes in, would we need any other
whitelisting mechanism at all? I think the exception patterns in
secref_whitelist() and those two other whitelisting functions
(init_section_ref_ok and exit_section_ref_ok) could all be
subsumed and made redundant if / when __init_refok is used
in the actual sources.

Satyam
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