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,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 B0EF9C433E1 for ; Fri, 14 Aug 2020 01:39:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8B5DB20771 for ; Fri, 14 Aug 2020 01:39:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="gRaW7s6n" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726597AbgHNBjv (ORCPT ); Thu, 13 Aug 2020 21:39:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726546AbgHNBju (ORCPT ); Thu, 13 Aug 2020 21:39:50 -0400 Received: from mail-pl1-x642.google.com (mail-pl1-x642.google.com [IPv6:2607:f8b0:4864:20::642]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EA416C061757; Thu, 13 Aug 2020 18:39:50 -0700 (PDT) Received: by mail-pl1-x642.google.com with SMTP id r4so3475846pls.2; Thu, 13 Aug 2020 18:39:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=ucwMhSrbSIS+geFiJPFbLh/10bUBQsiRpXGuHS0d2Ek=; b=gRaW7s6nWoOflNE02kTZswBl5Fv3jtAsfVWJyLQyFIq29U7UbYOV3oUUY5EbK6y/hX snUTTWEJ3BTy9lhmwyrvckJClhEO55aCN3uOod3x1PWoE+xhtdPe++S7zrWiofhP9B29 RYRoB9fPhT7Kz+HD22Mllss/9YYVwWq5Ko/2Almanz74VKxbEdVwkaahWWu45snG78wm IkdnkcAOSEMDMGJYwy7GI6HmIkRfchrKw2KZW5Y9DVhl19vNqMduyoDPn0rt+pgNNDdc p5sA7UtO4miy3p/rWwYEnyubHaeXTMeeiOMujqiTiRDjsvVK1N4S+2f05QcGcQOPhVC1 bAgg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=ucwMhSrbSIS+geFiJPFbLh/10bUBQsiRpXGuHS0d2Ek=; b=Lb04Ezv1+clx6DNkhjLUHowOj4K0OVFu4N6Xh9Hv3rWbuu5t6xsaoD0z2MPSm0EuiD ILmSKvLzxmu3hqicj07JB+gDMBDfzFNRu3UQ9OFsP0uFuECxu8/mNmz362vYU4AImF2x PKN6zbdvWk431mLuoCmcL2Ka7ISxfdk9Pngrkhw7VyEJOwL0VlHf2dO+tJtxtySYqoKx /4qRaroDJ6cFVaJBEd1h2SQpnUT8pUvCCL9RAo4XWas+5DDxmwR/ovCXRIDsXS8gOYTz GwWsdE7w1broc6+0tNGAr8yf92boulkqOfSBtgO9rVZL1hIuTGhQjk+HRozFuR9lf6Xb nAaA== X-Gm-Message-State: AOAM533vwta1Lu/eYTobGW4hPfCSj8d3LJc8O8Ghk23HETghQM6AGQ6/ 8XqdkAzLj63S5si8MMW5nAc= X-Google-Smtp-Source: ABdhPJxHemgMxApjKK6EZW0+jIi/iIgDCvbWbdKO+NVvljwfhmqcOFUjD5pxlm5zMpX00z1i5pOjWg== X-Received: by 2002:a17:902:aa4c:: with SMTP id c12mr403702plr.237.1597369190464; Thu, 13 Aug 2020 18:39:50 -0700 (PDT) Received: from localhost ([2409:10:2e40:5100:6e29:95ff:fe2d:8f34]) by smtp.gmail.com with ESMTPSA id fv21sm6202032pjb.16.2020.08.13.18.39.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Aug 2020 18:39:49 -0700 (PDT) Date: Fri, 14 Aug 2020 10:39:48 +0900 From: Sergey Senozhatsky To: Andy Shevchenko Cc: Guenter Roeck , Greg KH , Sergey Senozhatsky , Petr Mladek , Steven Rostedt , linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Tony Lindgren , Sergey Senozhatsky , John Ogness , kurt@linutronix.de, Raul Rangel , "S, Shirish" Subject: Re: Recursive/circular locking in serial8250_console_write/serial8250_do_startup Message-ID: <20200814013948.GA356684@jagdpanzerIV.localdomain> References: <20200812154813.GA46894@roeck-us.net> <20200813050629.GA95559@roeck-us.net> <20200813115948.GA3854926@kroah.com> <20200813142022.GY1891694@smile.fi.intel.com> <20200813180013.GZ1891694@smile.fi.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200813180013.GZ1891694@smile.fi.intel.com> Sender: linux-serial-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org Hi Andy, On (20/08/13 21:00), Andy Shevchenko wrote: > That's basically what Sergey (IIRC) proposed in [1]. > (You missed enable_irq() part in above) > > I guess we may try it. Sergey, can you submit a formal patch? OK, let me try. -ss