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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_SANE_1 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 BB7B3C10F14 for ; Tue, 15 Oct 2019 14:48:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8C7BC20640 for ; Tue, 15 Oct 2019 14:48:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="i7vBn9gz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732748AbfJOOsg (ORCPT ); Tue, 15 Oct 2019 10:48:36 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:59558 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726523AbfJOOsg (ORCPT ); Tue, 15 Oct 2019 10:48:36 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x9FEiRWZ111813; Tue, 15 Oct 2019 14:47:32 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=corp-2019-08-05; bh=iBvQZB/ymL6R4KRMnoHxP7zNs7BB23dad97HHnYj9Is=; b=i7vBn9gzT8bsjv+0cdVDWD0gW4NWPuLALe/5yuh88vTXF02dUNtVtoGvjcGwRVB2tNa+ KP5tYV8fHga7gcnyhpEoVWusYR81SH3RqgRflolM0P3OHhN4cxnAOrMhdEL36GNxlmG7 hkZ2qodf3g9HhYkhcNpchMmWp1Xlbae0X9cWTgECfOE4TyMpceUYcjmHllaul8rnyb6b 6hbnCWKR+ak4d7/RTi2IWwpTqccsw4HUl9LnBaCsvhj1bzPOOi8Ro7Q7JVV8eBTxwqu9 lHcBa6YHlGe1vlMdIs0H9vv03vJLtYrrQMHKhpuAU6Anthxu4fZRHjQzn75ky4QM7u+D Ug== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by userp2120.oracle.com with ESMTP id 2vk7fr8eeb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 15 Oct 2019 14:47:31 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x9FEhnQw102633; Tue, 15 Oct 2019 14:47:31 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserp3030.oracle.com with ESMTP id 2vnf7rbfm0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 15 Oct 2019 14:47:31 +0000 Received: from abhmp0007.oracle.com (abhmp0007.oracle.com [141.146.116.13]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x9FElTeS030428; Tue, 15 Oct 2019 14:47:29 GMT Received: from kadam (/41.57.98.10) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 15 Oct 2019 14:47:28 +0000 Date: Tue, 15 Oct 2019 17:47:20 +0300 From: Dan Carpenter To: Alexander Gordeev Cc: devel@driverdev.osuosl.org, Michael Chen , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 1/2] dmaengine: avalon: Intel Avalon-MM DMA Interface for PCIe Message-ID: <20191015144202.GI4774@kadam> References: <3ed3c016b7fbe69e36023e7ee09c53acac8a064c.1570558807.git.a.gordeev.box@gmail.com> <20191009121441.GM25098@kadam> <20191009145811.GA3823@AlexGordeev-DPT-VI0092> <20191009185323.GG13286@kadam> <20191010085144.GA14197@AlexGordeev-DPT-VI0092> <20191010113034.GN13286@kadam> <20191015112449.GA28852@AlexGordeev-DPT-VI0092> <20191015131955.GH4774@kadam> <20191015143129.GA32565@AlexGordeev-DPT-VI0092> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191015143129.GA32565@AlexGordeev-DPT-VI0092> User-Agent: Mutt/1.9.4 (2018-02-28) X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9411 signatures=668684 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=908 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910150132 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9411 signatures=668684 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910150132 Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org Ah that's fine then. And since wr_flags[hw->d2h_last_id] is just true/false then it doesn't matter if it races. regards, dan carpenter