linux-kernel - Re: [PATCH] arch: m32r: include: asm: add "dma-mapping-common.h"

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Date:	Thu, 27 Jun 2013 17:40:33 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	Hirokazu Takata <takata@...ux-m32r.org>,
	"dhowells@...hat.com" <dhowells@...hat.com>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	"sfr@...b.auug.org.au" <sfr@...b.auug.org.au>,
	Rusty Russell <rusty@...tcorp.com.au>,
	linux-m32r@...linux-m32r.org, linux-m32r-ja@...linux-m32r.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux-Arch <linux-arch@...r.kernel.org>
Subject: Re: [PATCH] arch: m32r: include: asm: add "dma-mapping-common.h"

On 06/27/2013 05:27 PM, Chen Gang wrote:
> On 06/27/2013 04:30 PM, Arnd Bergmann wrote:
>> > On Thursday 27 June 2013 12:50:59 Chen Gang wrote:
>>> >> Need add generic "dma-mapping-common.h", or compiling may fail.
>>> >>
>>> >> The related error (with allmodconfig):
>>> >>
>>> >>     CC [M]  net/irda/irlan/irlan_eth.o
>>> >>   drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_mmap’:
>>> >>   drivers/media/v4l2-core/videobuf2-dma-contig.c:202:2: error: implicit declaration of function ‘dma_mmap_coherent’ [-Werror=implicit-function-declaration]
>>> >>   drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_get_base_sgt’:
>>> >>   drivers/media/v4l2-core/videobuf2-dma-contig.c:385:2: error: implicit declaration of function ‘dma_get_sgtable’ [-Werror=implicit-function-declaration]
>>> >>
>>> >>
>>> >> Signed-off-by: Chen Gang <gang.chen@...anux.com>
>> > 
>> > m32r does not provide the "common" version of the dma mapping API, so this
>> > is certainly wrong.
>> > 

Oh, sorry, the reply below is incorrect, I will check it, again, thanks.

> But m32r really has pci.h, and also can cause this issue.


-- 
Chen Gang
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