From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3wk9hb0w5fzDqLB for ; Fri, 9 Jun 2017 02:23:26 +1000 (AEST) Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v58GJBTR021810 for ; Thu, 8 Jun 2017 12:23:23 -0400 Received: from e06smtp15.uk.ibm.com (e06smtp15.uk.ibm.com [195.75.94.111]) by mx0a-001b2d01.pphosted.com with ESMTP id 2ay8hkcq85-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Thu, 08 Jun 2017 12:23:23 -0400 Received: from localhost by e06smtp15.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 8 Jun 2017 17:23:19 +0100 Date: Thu, 8 Jun 2017 18:23:11 +0200 From: Gerald Schaefer To: Christoph Hellwig Cc: x86@kernel.org, linux-arm-kernel@lists.infradead.org, xen-devel@lists.xenproject.org, linux-c6x-dev@linux-c6x.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@linux-mips.org, openrisc@lists.librecores.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, dmaengine@vger.kernel.org, linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, iommu@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 19/44] s390: implement ->mapping_error In-Reply-To: <20170608132609.32662-20-hch@lst.de> References: <20170608132609.32662-1-hch@lst.de> <20170608132609.32662-20-hch@lst.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Message-Id: <20170608182311.05cced9e@thinkpad> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, 8 Jun 2017 15:25:44 +0200 Christoph Hellwig wrote: > s390 can also use noop_dma_ops, and while that currently does not return > errors it will so in the future. Implementing the mapping_error method > is the proper way to have per-ops error conditions. > > Signed-off-by: Christoph Hellwig Acked-by: Gerald Schaefer