From patchwork Fri Nov 23 21:31:09 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shuah Khan X-Patchwork-Id: 201400 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 934E22C0374 for ; Sat, 24 Nov 2012 08:31:44 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756477Ab2KWVb2 (ORCPT ); Fri, 23 Nov 2012 16:31:28 -0500 Received: from g6t0184.atlanta.hp.com ([15.193.32.61]:38955 "EHLO g6t0184.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756461Ab2KWVb1 (ORCPT ); Fri, 23 Nov 2012 16:31:27 -0500 Received: from g5t0029.atlanta.hp.com (g5t0029.atlanta.hp.com [16.228.8.141]) by g6t0184.atlanta.hp.com (Postfix) with ESMTP id 179B5C1AA; Fri, 23 Nov 2012 21:31:24 +0000 (UTC) Received: from [10.152.0.6] (swa01cs005-da01.atlanta.hp.com [16.114.29.155]) by g5t0029.atlanta.hp.com (Postfix) with ESMTP id 1A7102027B; Fri, 23 Nov 2012 21:31:10 +0000 (UTC) Message-ID: <1353706269.5270.96.camel@lorien2> Subject: [PATCH 1/9] ARM64: 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 14:31:09 -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: Catalin Marinas --- arch/arm64/include/asm/dma-mapping.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index 538f4b4..9947768 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -50,6 +50,7 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr) static inline int dma_mapping_error(struct device *dev, dma_addr_t dev_addr) { struct dma_map_ops *ops = get_dma_ops(dev); + debug_dma_mapping_error(dev, dev_addr); return ops->mapping_error(dev, dev_addr); }