Received: by 2002:a05:6358:c692:b0:131:369:b2a3 with SMTP id fe18csp2692670rwb; Sat, 29 Jul 2023 11:49:01 -0700 (PDT) X-Google-Smtp-Source: APBJJlGRhNf6MYl4kPvjmQEviHSxLgoApgV+BETAopDBCk7vDvkL7b+1RVQnAOagywcKbum9Midb X-Received: by 2002:a05:6300:8003:b0:13b:9d80:673d with SMTP id an3-20020a056300800300b0013b9d80673dmr5354468pzc.48.1690656541188; Sat, 29 Jul 2023 11:49:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690656541; cv=none; d=google.com; s=arc-20160816; b=saRsS3CXfRTtfculBKzomQJRBBHi6x754h+kGNk69UKZ3ffqL+m7S3xH772KY/+8L3 K7FOy9JxFIffjIolBnFTp+qRCwIdyb/sjeQgn1hsNSGpV41BIb1U425m+sElRpKHhvmH HUtNRTMO1uZgd3pYekE3vycIE9WtyVIQEilZosNpF5Ug21aRfhiZhYLMAG+jVN+1Uo8j 4Y1wk5WiUMPmTnX5CJbBX6ErnDYbV9UKLU1k41GrXgGmsMEvKvVXHWBTXHULJ+M2hWKp QqXKsov0tDMQouj+jK8l+VNnS556JM/r2N1DJ5f4CmiVXsCE92duon8bsGF6PFFT3bei PvPQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:subject:message-id:date:from:in-reply-to :references:mime-version:dkim-signature; bh=W/D7UZ40/zf+BKHR7Fn0OH/OzzIWuG5A8dT87agr1pY=; fh=tcUByLzjw4k51GMx5l1tkHdoEguXmDhSfc2CrPU73ko=; b=DwetJ7YKyxId6Pk6k+PQdaoh0yWTzdmKWyQ9Ei5QuZ2udjxRK99xnXl9/shPivXPQx 6cWX1OC5aXe0rUMvib8AI+JytMpu2C73s6FoElcUKL/12TEyrO1Z3QcVpcQJgfPehE6l MedbJu1/Ydk67tJMkBwILA2JXpF9Y5GRNPVssSHlxXn0FtNn6ZcZv1iGRKryEF2SwSKx LbWnXbj6oxqKtZvY7YfAC+UjGCMHNbaOcfg2BpCxn/lTWXhiU6F6dSVPlBN7p2KHMPQH uQMKNceIFDAsRcolegh1jigs4lL7cWt9CNOua8iFancagr/3kromZe7KNz5/6fFa2RvZ NTFw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20221208 header.b=MxpgEadQ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id 127-20020a630285000000b0055798b90375si1168489pgc.709.2023.07.29.11.48.49; Sat, 29 Jul 2023 11:49:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20221208 header.b=MxpgEadQ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229730AbjG2SB7 (ORCPT + 99 others); Sat, 29 Jul 2023 14:01:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229450AbjG2SB4 (ORCPT ); Sat, 29 Jul 2023 14:01:56 -0400 Received: from mail-wm1-x332.google.com (mail-wm1-x332.google.com [IPv6:2a00:1450:4864:20::332]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DC955FF; Sat, 29 Jul 2023 11:01:51 -0700 (PDT) Received: by mail-wm1-x332.google.com with SMTP id 5b1f17b1804b1-3fbc77e76abso30760315e9.1; Sat, 29 Jul 2023 11:01:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1690653710; x=1691258510; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=W/D7UZ40/zf+BKHR7Fn0OH/OzzIWuG5A8dT87agr1pY=; b=MxpgEadQIA0f/tBYTFLSTBX5dyAfBleoJzitmLXO+UK3Fve4oD6NLsxfecgA2+7Qhb jbnVW07sUAibn6J4ZItdpt3p9qgPnydXwnJLRwO9Of9PNpwK49BD+R4hjmhuUggcpU9H Nqgquoyb9cKos8RkqpD6WTpZ4jbeB5ZN5rmxc4zcUKYdEQRmEFcBQO8L2StoFphpKRPO DiXX2hYdXciKP1n6UuNFti6jNk+M5aUHLW/1pz56WMvwJYsjFUW9rMKVMfOV88TB9yf2 u4JDjyJAzsRX6k3K4cUWi4dd1PqT78AuZU6lWMlNldaq3dCwbpzW9uvreIikRyID5e4H 4TGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690653710; x=1691258510; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=W/D7UZ40/zf+BKHR7Fn0OH/OzzIWuG5A8dT87agr1pY=; b=HL3Aj0IvH6MelNUpuQmRCpu0EcJEaNhnxpqYxhCXhQ1pFMFALHbzb/7KCiK7NMIZ89 z12NdfZ9C64CIXZUff/n5UB8vSQZS3jelik//8anZLpxzGE9ag+NDcuk/SSJhMmVWTTU 2UgkZmd9rv9IsQVxX3xzc+10BASHtQozt2iu98FZXsDDv4vWunACfa41qLBGe8HcHxul IDTMPZOvrs51oqiY1MD3GH6zUltj+ObKydPhk8TYq6WZxEMay3SVDuwAuuOPrAP7Re4Z MeXnw7Y1vlPoz6bNl4j2+IYGVBo6BbnnYltXfGz09sHNU1uG62un4dJsHlE0fsF5p60b R9JQ== X-Gm-Message-State: ABy/qLapLo1Y02n0AlasWvjf/hW6MkemwCYnBr3g9CwHfI/z5ScQWkGQ 4/QiClgEwtrKvr1E5vHp+5Hmx0zuJkSvTHKJrArr3IMmsEqCRF8m X-Received: by 2002:a05:600c:2194:b0:3fd:d763:4499 with SMTP id e20-20020a05600c219400b003fdd7634499mr3883452wme.36.1690653710109; Sat, 29 Jul 2023 11:01:50 -0700 (PDT) MIME-Version: 1.0 References: <20230726104827.60382-1-dg573847474@gmail.com> <9378e69f-2bd4-9d8d-c736-b8799f6ebecc@deltatee.com> <0e4caa6c-d5bd-61e7-2ef6-300973cd2db6@deltatee.com> In-Reply-To: From: Chengfeng Ye Date: Sun, 30 Jul 2023 02:01:39 +0800 Message-ID: Subject: Re: [PATCH] dmaengine: plx_dma: Fix potential deadlock on &plxdev->ring_lock To: Logan Gunthorpe Cc: Christophe JAILLET , vkoul@kernel.org, Yunbo Yu , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Yes, I think you can just send a revert patch explaining the reasoning > further in a commit message. v2 patch is just sent to address the problem. Best Regards, Chengfeng