Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751379AbWH1TYy (ORCPT ); Mon, 28 Aug 2006 15:24:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751368AbWH1TYy (ORCPT ); Mon, 28 Aug 2006 15:24:54 -0400 Received: from wx-out-0506.google.com ([66.249.82.227]:25250 "EHLO wx-out-0506.google.com") by vger.kernel.org with ESMTP id S1751379AbWH1TYx (ORCPT ); Mon, 28 Aug 2006 15:24:53 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=TnIbZeNAFbLiwsC+PD8teIp5t2Zxy64Hlv3OyPE0uH69VyCEL4oA4PdN9y+RP3jz7t9A8hwJaY+1ax1tfkD7wuL4OvnBfQIbOBKZM4EH2hNQ9cS/Z2TkCQF6qqDGn6YAWt0VLWxAj4sYGDiS/jCV/AbDd6GlLsaZPcUWtyQaHMk= Message-ID: <9e0cf0bf0608281224r28a6af47tc689757488e93c5a@mail.gmail.com> Date: Mon, 28 Aug 2006 22:24:51 +0300 From: "Alon Bar-Lev" To: "Matt Domsch" Subject: Re: [PATCH] THE LINUX/I386 BOOT PROTOCOL - Breaking the 256 limit (ping) Cc: "H. Peter Anvin" , "Andi Kleen" , "Andrew Morton" , linux-kernel@vger.kernel.org, johninsd@san.rr.com In-Reply-To: <20060828184637.GD13464@lists.us.dell.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <445B5524.2090001@gmail.com> <44F1F356.5030105@zytor.com> <200608272254.13871.ak@suse.de> <44F21122.3030505@zytor.com> <44F286E8.1000100@gmail.com> <44F2902B.5050304@gmail.com> <44F29BCD.3080408@zytor.com> <9e0cf0bf0608280519y7a9afcb9od29494b9cacb8852@mail.gmail.com> <44F335C8.7020108@zytor.com> <20060828184637.GD13464@lists.us.dell.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 787 Lines: 17 On 8/28/06, Matt Domsch wrote: > No reason. I was just trying to be careful, not leaving data in the > upper bits of those registers going uninitialized. If we know they're > not being used ever, then it's not a problem. But I don't think > that's the source of the command line size concern, is it? Since the cmd_line_ptr is 32bit, we can load the lower 16bits into si, ignoring the upper 16bits, or we can use esi for all references. I think using esi for all references is cleaner... Best Regards, Alon Bar-Lev. - 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/