linux-kernel - Re: 3.8-rc1 build failure with MIPS/SPARSEMEM

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Date:	Mon, 14 Jan 2013 14:03:39 -0800
From:	David Daney <ddaney.cavm@...il.com>
To:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-mips@...ux-mips.org, Aaro Koskinen <aaro.koskinen@....fi>
Subject: Re: 3.8-rc1 build failure with MIPS/SPARSEMEM

On 01/14/2013 07:16 AM, Kirill A. Shutemov wrote:
> On Sun, Dec 30, 2012 at 12:38:50PM +0200, Kirill A. Shutemov wrote:
>> On Thu, Dec 27, 2012 at 02:16:07PM +0200, Aaro Koskinen wrote:
>>> Hi,
>>>
>>> On Wed, Dec 26, 2012 at 02:34:35AM +0200, Kirill A. Shutemov wrote:
>>>> On MIPS if SPARSEMEM is enabled we've got this:
>>>>
>>>> In file included from /home/kas/git/public/linux/arch/mips/include/asm/pgtable.h:552,
>>>>                   from include/linux/mm.h:44,
>>>>                   from arch/mips/kernel/asm-offsets.c:14:
>>>> include/asm-generic/pgtable.h: In function ‘my_zero_pfn’:
>>>> include/asm-generic/pgtable.h:466: error: implicit declaration of function ‘page_to_section’
>>>> In file included from arch/mips/kernel/asm-offsets.c:14:
>>>> include/linux/mm.h: At top level:
>>>> include/linux/mm.h:738: error: conflicting types for ‘page_to_section’
>>>> include/asm-generic/pgtable.h:466: note: previous implicit declaration of ‘page_to_section’ was here
>>>>
>>>> Due header files inter-dependencies, the only way I see to fix it is
>>>> convert my_zero_pfn() for __HAVE_COLOR_ZERO_PAGE to macros.
>>>>
>>>> Signed-off-by: Kirill A. Shutemov <kirill@...temov.name>
>>>
>>> Thanks, this works.
>>>
>>> Tested-by: Aaro Koskinen <aaro.koskinen@....fi>
>>
>> Andrew, could you take the patch?

I found the same problem and arrived at an equivalent solution.

Acked-by: David Daney <david.daney@...ium.com>

>
> ping?
>

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