From patchwork Fri Nov 23 21:37:22 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shuah Khan X-Patchwork-Id: 201409 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 691552C0352 for ; Sat, 24 Nov 2012 08:37:29 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756583Ab2KWVh2 (ORCPT ); Fri, 23 Nov 2012 16:37:28 -0500 Received: from g6t0184.atlanta.hp.com ([15.193.32.61]:40743 "EHLO g6t0184.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756410Ab2KWVh1 (ORCPT ); Fri, 23 Nov 2012 16:37:27 -0500 Received: from g5t0030.atlanta.hp.com (g5t0030.atlanta.hp.com [16.228.8.142]) by g6t0184.atlanta.hp.com (Postfix) with ESMTP id BA80FC2BA; Fri, 23 Nov 2012 21:37:26 +0000 (UTC) Received: from [10.152.0.6] (swa01cs005-da01.atlanta.hp.com [16.114.29.155]) by g5t0030.atlanta.hp.com (Postfix) with ESMTP id 2649E14289; Fri, 23 Nov 2012 21:37:23 +0000 (UTC) Message-ID: <1353706642.5270.104.camel@lorien2> Subject: [PATCH 8/9] sparc: dma_debug: add debug_dma_mapping_error support From: Shuah Khan Reply-To: shuah.khan@hp.com To: Joerg Roedel , a-jacquiot@ti.com, fenghua.yu@intel.com, catalin.marinas@arm.com, lethal@linux-sh.org, benh@kernel.crashing.org, ralf@linux-mips.org, tony.luck@intel.com, davem@davemloft.net, m.szyprowski@samsung.com, msalter@redhat.com, monstr@monstr.eu, Ming Lei Cc: linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-ia64@vger.kernel.org, linux-mips@linux-mips.org, linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, microblaze-uclinux@itee.uq.edu.au, shuahkhan@gmail.com, LKML Date: Fri, 23 Nov 2012 14:37:22 -0700 Organization: ISS-Linux X-Mailer: Evolution 3.2.3-0ubuntu6 Mime-Version: 1.0 Sender: sparclinux-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: sparclinux@vger.kernel.org Add dma-debug interface debug_dma_mapping_error() to debug drivers that fail to check dma mapping errors on addresses returned by dma_map_single() and dma_map_page() interfaces. Signed-off-by: Shuah Khan Acked-by: David S. Miller --- arch/sparc/include/asm/dma-mapping.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h index 8493fd3..05fe53f 100644 --- a/arch/sparc/include/asm/dma-mapping.h +++ b/arch/sparc/include/asm/dma-mapping.h @@ -59,6 +59,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size, static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { + debug_dma_mapping_error(dev, dma_addr); return (dma_addr == DMA_ERROR_CODE); }