From patchwork Fri Oct 26 16:08:25 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shuah Khan X-Patchwork-Id: 194531 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from ozlabs.org (localhost [IPv6:::1]) by ozlabs.org (Postfix) with ESMTP id C6C332C00BF for ; Sat, 27 Oct 2012 03:19:23 +1100 (EST) X-Greylist: delayed 610 seconds by postgrey-1.34 at bilbo; Sat, 27 Oct 2012 03:18:43 EST Received: from g5t0008.atlanta.hp.com (g5t0008.atlanta.hp.com [15.192.0.45]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "smtp.hp.com", Issuer "VeriSign Class 3 Secure Server CA - G3" (not verified)) by ozlabs.org (Postfix) with ESMTPS id C0E8F2C0097 for ; Sat, 27 Oct 2012 03:18:43 +1100 (EST) Received: from g5t0030.atlanta.hp.com (g5t0030.atlanta.hp.com [16.228.8.142]) by g5t0008.atlanta.hp.com (Postfix) with ESMTP id 20E24241C2; Fri, 26 Oct 2012 16:08:30 +0000 (UTC) Received: from [10.152.0.198] (openvpn.lnx.usa.hp.com [16.125.113.33]) by g5t0030.atlanta.hp.com (Postfix) with ESMTP id 21114140E4; Fri, 26 Oct 2012 16:08:26 +0000 (UTC) Message-ID: <1351267705.4013.18.camel@lorien2> Subject: [PATCH RFT RESEND linux-next] powerpc: dma-mapping: support debug_dma_mapping_error From: Shuah Khan To: benh@kernel.crashing.org, kyungmin.park@samsung.com, paulus@samba.org, m.szyprowski@samsung.com, david@gibson.dropbear.id.au, arnd@arndb.de, andrzej.p@samsung.com Date: Fri, 26 Oct 2012 10:08:25 -0600 In-Reply-To: <1351210584.6851.21.camel@lorien2> References: <1351210584.6851.21.camel@lorien2> Organization: ISS-Linux X-Mailer: Evolution 3.2.3-0ubuntu6 Mime-Version: 1.0 Cc: linuxppc-dev@lists.ozlabs.org, LKML , shuahkhan@gmail.com X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: shuah.khan@hp.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Add support for debug_dma_mapping_error() call to avoid warning from debug_dma_unmap() interface when it checks for mapping error checked status. Without this patch, device driver failed to check map error warning is generated. Signed-off-by: Shuah Khan --- arch/powerpc/include/asm/dma-mapping.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 7816087..e27e9ad 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -172,6 +172,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { struct dma_map_ops *dma_ops = get_dma_ops(dev); + debug_dma_mapping_error(dev, dma_addr); if (dma_ops->mapping_error) return dma_ops->mapping_error(dev, dma_addr);