Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754128AbbEZNU3 (ORCPT ); Tue, 26 May 2015 09:20:29 -0400 Received: from mail-oi0-f47.google.com ([209.85.218.47]:33151 "EHLO mail-oi0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754098AbbEZNUD (ORCPT ); Tue, 26 May 2015 09:20:03 -0400 MIME-Version: 1.0 In-Reply-To: <20150526131717.GB18076@nazgul.tnic> References: <1432645607-29343-1-git-send-email-kuleshovmail@gmail.com> <20150526131717.GB18076@nazgul.tnic> Date: Tue, 26 May 2015 19:20:02 +0600 Message-ID: Subject: Re: [PATCH v8 0/3] x86/earlyprintk: setup serial earlyprintk as early as possible From: Alexander Kuleshov To: Borislav Petkov Cc: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Andy Shevchenko , LKML , Greg Kroah-Hartman , Mark Rustad , Yinghai Lu Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1020 Lines: 22 2015-05-26 19:17 GMT+06:00 Borislav Petkov : > On Tue, May 26, 2015 at 07:06:47PM +0600, Alexander Kuleshov wrote: >> The early_printk function is usable only after the setup_early_printk will >> be executed. We pass 'earlyprintk' through the kernel command line. So, it >> means that earlyprintk will be usable only after the 'parse_early_param' >> will be executed. We have usable earlyprintk only during early boot, kernel >> decompression and after call of the 'parse_early_param'. This patchset makes >> serial earlyprintk usable before the call of the 'parse_early_param'. > > ... and? > > Why do we need it usable before parse_early_param()? Use case? > To be able to use early_printk and serial console between kernel decompression and parse_eary_param. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/