Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755336AbYAVNrg (ORCPT ); Tue, 22 Jan 2008 08:47:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751134AbYAVNr1 (ORCPT ); Tue, 22 Jan 2008 08:47:27 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:53930 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751110AbYAVNr0 (ORCPT ); Tue, 22 Jan 2008 08:47:26 -0500 Date: Tue, 22 Jan 2008 14:47:00 +0100 From: Ingo Molnar To: Ian Campbell Cc: linux-kernel@vger.kernel.org, "Eric W. Biederman" , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Andi Kleen , Mika =?iso-8859-1?Q?Penttil=E4?= Subject: Re: [PATCH] x86_32: Remove unnecessary use of %ebx as the boot cpu flag Message-ID: <20080122134700.GG7304@elte.hu> References: <1200953721-3815-2-git-send-email-ijc@hellion.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1200953721-3815-2-git-send-email-ijc@hellion.org.uk> User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 853 Lines: 21 * Ian Campbell wrote: > Currently in head_32.S there are two ways we test to see if we are the > boot cpu. By looking at %ebx and by looking at the static variable > ready. When changing things around I have found that it gets tricky > to preserve %ebx. So this patch just switches head.S over to the more > reliable test of always using ready. > > Hopefully later we can kill these tests entirely. FYI, i've applied this patch and your next patch to x86.git. (still waiting with the third patch, until your discussion of this topic with Peter settles down.) Thanks, Ingo -- 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/