From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752854Ab3F0J2q (ORCPT ); Thu, 27 Jun 2013 05:28:46 -0400 Received: from intranet.asianux.com ([58.214.24.6]:46674 "EHLO intranet.asianux.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752200Ab3F0J2p (ORCPT ); Thu, 27 Jun 2013 05:28:45 -0400 X-Spam-Score: -100.9 Message-ID: <51CC0598.2080409@asianux.com> Date: Thu, 27 Jun 2013 17:27:52 +0800 From: Chen Gang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 MIME-Version: 1.0 To: Arnd Bergmann CC: Hirokazu Takata , "dhowells@redhat.com" , Paul McKenney , "sfr@canb.auug.org.au" , Rusty Russell , linux-m32r@ml.linux-m32r.org, linux-m32r-ja@ml.linux-m32r.org, "linux-kernel@vger.kernel.org" , Linux-Arch Subject: Re: [PATCH] arch: m32r: include: asm: add "dma-mapping-common.h" References: <51CBC4B3.807@asianux.com> <2831217.RWPZkclVnp@wuerfel> In-Reply-To: <2831217.RWPZkclVnp@wuerfel> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 > > m32r does not provide the "common" version of the dma mapping API, so this > is certainly wrong. > But m32r really has pci.h, and also can cause this issue. Thanks. -- Chen Gang