Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752319AbdFHQX2 (ORCPT ); Thu, 8 Jun 2017 12:23:28 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:42003 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752057AbdFHQXX (ORCPT ); Thu, 8 Jun 2017 12:23:23 -0400 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> Organization: IBM Deutschland Research & Development GmbH / Vorsitzende des Aufsichtsrats: Martina Koederitz / Geschaeftsfuehrung: Dirk Wittkopp / Sitz der Gesellschaft: Boeblingen / Registergericht: Amtsgericht Stuttgart, HRB 243294 X-Mailer: Claws Mail 3.9.0 (GTK+ 2.24.23; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 17060816-0020-0000-0000-000003836630 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17060816-0021-0000-0000-000041FEF14B Message-Id: <20170608182311.05cced9e@thinkpad> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-06-08_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1703280000 definitions=main-1706080286 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 384 Lines: 10 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