Received: by 2002:a05:6a10:1a4d:0:0:0:0 with SMTP id nk13csp140403pxb; Mon, 31 Jan 2022 17:35:27 -0800 (PST) X-Google-Smtp-Source: ABdhPJxAO8FHa/dgZxdWzYL0+A8boLj4MqjiCOScm2Q1clY1uy3sq9S4ik82XDrPhggY7zI0m4V3 X-Received: by 2002:a17:907:7e9a:: with SMTP id qb26mr19990326ejc.559.1643679327365; Mon, 31 Jan 2022 17:35:27 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1643679327; cv=none; d=google.com; s=arc-20160816; b=YwR0zrZjEgHWkLM00OmBn5+31O1F0BboV+aV1Z2MybIp4pE/yj2p+upTE4CHlVnqnw jbqubGLPJbtCjg9nCqj4WSI+cnZoe07jkwn5mHJ8b5P0efJORUYVj7W+JHnPyBXuNPU1 GOm2WvOTd/HQsw3iS8MjkfTe4pLKTHqCBhGbmLM2flretypqtPA7yTdnPK4GxBb75Ylb kWLptehHrXmeapxjhUzaiGSxFd1W1BnQ9MgYI0v2Hua/Al1kfYpdkPm3yKkTTDuUleTx kk1lcKMY8bvik10g9rP6F0oOvUux5qyPUq5dWZmrM4aLLafMvsry+ZX2GEaD1lZHEX4q 3u0Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=OSBvj0fYAPDxar2QeMW30Fq+Xc4ALjxSr0qoG3i2Fpo=; b=Lpvk4DNY4JfT3r5Zr5gEuY74vhw3t152DbPfgjs89PGPrZIaA2cyZDdPnG1JXt1wOc S0QxJFrX/0pf1jyyCQKQ5Wj0v2LDLlg85voiRvNujwZb3mQADxMACMzsq2S9vd3jgaxk jG/jn3BqNt6I0tTzmRE13ZDK9e2xuV17TbrWxu65kQMLPzWSWKsDOJicUDk4mza3+f0G ywzY5TF9GLrWIK/jqtnsx9SGXwK9Hx+jy92X/QP/R72VjhFQqGOqa86rqE43OssYz/12 MVMSYirp2WJInbfBntR2zfUoWAQswYDZ/bznmq5aRHblG8EJz0zK22eFWmJXiBLjMVa/ 4ybg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b="cLKoK/qP"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id jg24si10392541ejc.380.2022.01.31.17.35.02; Mon, 31 Jan 2022 17:35:27 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b="cLKoK/qP"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241726AbiA2J5w (ORCPT + 99 others); Sat, 29 Jan 2022 04:57:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49790 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242507AbiA2J5s (ORCPT ); Sat, 29 Jan 2022 04:57:48 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2591FC061714; Sat, 29 Jan 2022 01:57:48 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id B6AB3B81053; Sat, 29 Jan 2022 09:57:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4CEB3C340E5; Sat, 29 Jan 2022 09:57:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643450265; bh=+/w0lj0M85M3FUPm3gEbcFJs4MkikbYYvFx9h0qpSMY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=cLKoK/qPyYdNQhfjsOldKx9jzuXCFLRDibjjIzzuuo0mTf3aqydeyBJ7hTpbtx3t7 J8wJX0V6vYqK65FgZ9MxQpREPkdf+HTr7ER8wKSC7ftdGy95qioFpp3W/DCltC6u1R bEiLjk0zkDlrqfMckNhkiBv4SFHKD6hBSorTrx8c= Date: Sat, 29 Jan 2022 10:57:41 +0100 From: Greg KH To: Jia-Ju Bai Cc: jirislaby@kernel.org, linux-serial@vger.kernel.org, linux-kernel Subject: Re: [BUG] tty: serial: possible deadlock in uart_remove_one_port() and uart_hangup() Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 29, 2022 at 05:34:05PM +0800, Jia-Ju Bai wrote: > Hello, > > My static analysis tool reports a possible deadlock in the tty driver in > Linux 5.10: 5.10 was released over a year ago and over 100 thousand changes ago. Please redo your check on 5.16 at the oldest. thanks, greg k-h