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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham 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 63ED1C43381 for ; Thu, 28 Mar 2019 13:42:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 234E221773 for ; Thu, 28 Mar 2019 13:42:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="pho//aGj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726259AbfC1NmI (ORCPT ); Thu, 28 Mar 2019 09:42:08 -0400 Received: from mail.skyhub.de ([5.9.137.197]:59384 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725875AbfC1NmI (ORCPT ); Thu, 28 Mar 2019 09:42:08 -0400 Received: from zn.tnic (p200300EC2F098000329C23FFFEA6A903.dip0.t-ipconnect.de [IPv6:2003:ec:2f09:8000:329c:23ff:fea6:a903]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 223991EC0943; Thu, 28 Mar 2019 14:42:07 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1553780527; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=BCV89As6f38JjXMDSWxAPgEYrUhl/T3KAL+vJk3Wb9I=; b=pho//aGj+gq72h420xWOpcTzI8EBlmnVOCb7JVF83Dz+jpHN8Ho3AClQxlpYjfOljKYxW8 kzvOyzgtv95F0tuNaXYxbAlm0F0YIhEExpJyUsDBPJtCb0OMU6GuTygw+YRD2qsN95mxC7 OgzjKJvZGrrU9alyrR59JqScVpBW3lo= Date: Thu, 28 Mar 2019 14:42:13 +0100 From: Borislav Petkov To: Andy Shevchenko Cc: "H. Peter Anvin" , x86@kernel.org, Thomas Gleixner , Ingo Molnar , linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 7/7] x86/boot: Support nocfg parameter for earlyprintk Message-ID: <20190328134213.GJ22720@zn.tnic> References: <20190319184325.72807-1-andriy.shevchenko@linux.intel.com> <20190319184325.72807-8-andriy.shevchenko@linux.intel.com> <20190328130317.GG22720@zn.tnic> <20190328132153.GZ9224@smile.fi.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190328132153.GZ9224@smile.fi.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 28, 2019 at 03:21:53PM +0200, Andy Shevchenko wrote: > If the connection to the target is done via serial interface and > firmware and / or bootloader already did necessary configuration. Again: how is the user supposed to know that? When a user sees "nocfg"'s documentation, how is the user supposed to decide whether she needs to supply nocfg or not? Which exact setups will need to supply nocfg on the cmdline? -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.