From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B5AA8C433E6 for ; Wed, 2 Sep 2020 01:22:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 700E020707 for ; Wed, 2 Sep 2020 01:22:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="eQ9q1Uyy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726312AbgIBBWy (ORCPT ); Tue, 1 Sep 2020 21:22:54 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:54016 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726140AbgIBBWx (ORCPT ); Tue, 1 Sep 2020 21:22:53 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0821J9a3061241; Wed, 2 Sep 2020 01:22:49 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=to : cc : subject : from : message-id : references : date : in-reply-to : mime-version : content-type; s=corp-2020-01-29; bh=d2A/fakPT8AvXHlc10w6SP/dKYZddFmLCUQoXWCKYhI=; b=eQ9q1UyyTxQIdRzS77ffkMWeqgouJabgfmTIGV5vaP/zCJRUU1GoPK+CjzKs7sTByp5o r7Ck+duKpX1obYuAO5ErMDhDwVzx04DQvEDm2EAujm0vXMtWus5zE5wxPv/xXS8tY6RO QKpSjz7hqQ1zdCtvjI9DQAq9jhJWWtLndrqxylsr6SQwt37X2/Ldp3/Z/+CnJX3OOusB +HkMo+USjJ641ha7ehYIZL2iVKsSGh04UbuLV5TO46tO1a3FM5skGsoKccnCYRd8oxQF k0wNSThLH8cT5yvUU7XbEc3JAjwMNkNHqJdpWyh01frAR21+smtK0MgnJ5gAb6igB2OV TQ== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by userp2130.oracle.com with ESMTP id 337eeqyndu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 02 Sep 2020 01:22:49 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0821Kb2Z095669; Wed, 2 Sep 2020 01:22:48 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserp3020.oracle.com with ESMTP id 3380x51ts1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 02 Sep 2020 01:22:48 +0000 Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 0821Mkc3025912; Wed, 2 Sep 2020 01:22:47 GMT Received: from ca-mkp.ca.oracle.com (/10.159.214.123) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 01 Sep 2020 18:22:46 -0700 To: Alex Dewar Cc: GR-QLogic-Storage-Upstream@marvell.com, jejb@linux.ibm.com, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, martin.petersen@oracle.com, njavali@marvell.com Subject: Re: [PATCH v2] scsi: Don't call memset after dma_alloc_coherent() From: "Martin K. Petersen" Organization: Oracle Corporation Message-ID: References: <20200820185149.932178-1-alex.dewar90@gmail.com> <20200820234952.317313-1-alex.dewar90@gmail.com> Date: Tue, 01 Sep 2020 21:22:44 -0400 In-Reply-To: <20200820234952.317313-1-alex.dewar90@gmail.com> (Alex Dewar's message of "Fri, 21 Aug 2020 00:49:52 +0100") MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9731 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 spamscore=0 phishscore=0 mlxlogscore=810 adultscore=0 suspectscore=1 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009020009 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9731 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 clxscore=1015 priorityscore=1501 lowpriorityscore=0 malwarescore=0 adultscore=0 spamscore=0 mlxscore=0 phishscore=0 impostorscore=0 mlxlogscore=830 bulkscore=0 suspectscore=1 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009020009 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Alex, > dma_alloc_coherent() already zeroes memory, so the extra call to > memset() is unnecessary. One patch per driver, please. Thanks! -- Martin K. Petersen Oracle Linux Engineering