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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_NEOMUTT 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 F3C38C004D2 for ; Tue, 2 Oct 2018 15:44:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C653B2082A for ; Tue, 2 Oct 2018 15:44:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C653B2082A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727815AbeJBW2N (ORCPT ); Tue, 2 Oct 2018 18:28:13 -0400 Received: from mga06.intel.com ([134.134.136.31]:49231 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726184AbeJBW2N (ORCPT ); Tue, 2 Oct 2018 18:28:13 -0400 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Oct 2018 08:44:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,332,1534834800"; d="scan'208";a="267836891" Received: from shbuild888.sh.intel.com (HELO localhost) ([10.239.146.239]) by fmsmga005.fm.intel.com with ESMTP; 02 Oct 2018 08:44:11 -0700 Date: Tue, 2 Oct 2018 23:49:40 +0800 From: Feng Tang To: Thomas Gleixner Cc: Borislav Petkov , Ingo Molnar , H Peter Anvin , Peter Zijlstra , "Stuart R . Anderson" , alan@linux.intel.com, x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] x86/earlyprintk: Add a force option for pciserial device Message-ID: <20181002154940.efuri5nq3hj3cys2@shbuild888> References: <20181001123916.GC7269@zn.tnic> <20181001141810.fbo3amfqnr5243mc@shbuild888> <20181001203004.GG7269@zn.tnic> <20181002091627.3vm6ow4y7me2uju3@shbuild888> <20181002094852.3bw2loje4zjriqe7@shbuild888> <20181002121046.lsqqnqfu42bazbfx@shbuild888> <20181002153110.qyttitbdzhtatlev@shbuild888> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 02, 2018 at 05:41:39PM +0200, Thomas Gleixner wrote: > On Tue, 2 Oct 2018, Feng Tang wrote: > > One idea is to change the new format to > > earlyprintk=pciserial[,force],bus:device.function[,baudrate] > > Then we can use what Boris has suggested: > > !strncmp(s, "force,", 6) > > Works for me. Thanks, will send a v3. - Feng