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[2620:137:e000::3:6]) by mx.google.com with ESMTPS id ik29-20020a170902ab1d00b001d044978d7esi1135934plb.598.2023.12.07.05.39.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Dec 2023 05:39:54 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) client-ip=2620:137:e000::3:6; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=dVcvCfp8; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by pete.vger.email (Postfix) with ESMTP id C81C18026C28; Thu, 7 Dec 2023 05:39:52 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at pete.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1442008AbjLGNji (ORCPT + 99 others); Thu, 7 Dec 2023 08:39:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46192 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1441907AbjLGNjh (ORCPT ); Thu, 7 Dec 2023 08:39:37 -0500 Received: from mail-wm1-x330.google.com (mail-wm1-x330.google.com [IPv6:2a00:1450:4864:20::330]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B4B4CD54; Thu, 7 Dec 2023 05:39:43 -0800 (PST) Received: by mail-wm1-x330.google.com with SMTP id 5b1f17b1804b1-40c0a11a914so10026395e9.2; Thu, 07 Dec 2023 05:39:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1701956382; x=1702561182; darn=vger.kernel.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=WNlERt5vaxD3qhwXwd+Dclsfyu3fQGlJIAQtAXUS3yA=; b=dVcvCfp8RNdBNp97w0xJ92fCnjKdhkvYdwHdwVepg8khlsn6togyOu5052BQYvGg3d cJr7EXSay3+nqvqU0rVfyVHWym/ggIS2sHbeVcdQO/+aWUxlU6TKRC19SAJiIMzqffHQ m4JaLXreQNPGkg2YZxhRSwPVnvP435YlclS7rBRAV+JnB1n6m8YiZ3CRNhHtsiTp7kqP 4/lbFRR3OfvrQMfSaK15RTSxgIUDVCGalN9sk0IYhqnTJ6huY3sgBp5JydQ9qEr/sSkZ kAHZhg53myBXZsVi31y4zVdg8Zu70HEx9M0nfd4YsREcyvPDbwkBLqvaoVSaiXfKFE6Z 5tsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701956382; x=1702561182; 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=WNlERt5vaxD3qhwXwd+Dclsfyu3fQGlJIAQtAXUS3yA=; b=ZaJ6ghnsP2kK7zC93gnnaTGx1wdNC6oNO2W9BqvnzyjfDwO0jveyvGyegscjUbWHtd UbMNW5cRbFvwyLeOPPIaOCOuIamBuCFx5pEgKelfQzCl14fKmXEJDlhEuRMHvWK5sW2y GrX4E1TVLRAfC/efAXs1f1Rsdv4RyWK5+CMn8JWlyG32hVp5yumhDUGebiv1CKkdpHVA wfqM0wsJ6032szydhqMGjZWyb692gaAUE94n9qeX0yFVZ8d1cNkZiEf+tfFOSgUboN1P h/JWBbwVmSNkJtBnRu7UM8+j1IFeWutLRWVyM5kc702lX1j5ANq5OB436LKGFve23oWy JVmA== X-Gm-Message-State: AOJu0YxtE9MlWC6VpFcOpYJfKvExFeLFomze09Ub8VUXSUPjk5rHti/J RbXKcvPtWhWlXVl980swrNNxwHpuV8ca6DjoPFcfCQwv X-Received: by 2002:a1c:7c08:0:b0:40b:5e59:b7a2 with SMTP id x8-20020a1c7c08000000b0040b5e59b7a2mr1669821wmc.127.1701956381852; Thu, 07 Dec 2023 05:39:41 -0800 (PST) MIME-Version: 1.0 References: <20231207133452.14726-1-dg573847474@gmail.com> In-Reply-To: <20231207133452.14726-1-dg573847474@gmail.com> From: Chengfeng Ye Date: Thu, 7 Dec 2023 21:39:30 +0800 Message-ID: Subject: Re: [PATCH v2] dmaengine: pch_dma: Fix potential deadlock on &pd_chan->lock To: vkoul@kernel.org, allen.lkml@gmail.com, arnd@arndb.de, christophe.jaillet@wanadoo.fr Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on pete.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (pete.vger.email [0.0.0.0]); Thu, 07 Dec 2023 05:39:52 -0800 (PST) Dear maintainers, The patch is to fix several potential deadlocks that I found several months ago, and they are found by static analysis tool. Thanks much for your effort in reviewing! Regards, Chengfeng