From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753040Ab1G3WYx (ORCPT ); Sat, 30 Jul 2011 18:24:53 -0400 Received: from terminus.zytor.com ([198.137.202.10]:37773 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752552Ab1G3WYr (ORCPT ); Sat, 30 Jul 2011 18:24:47 -0400 Message-ID: <4E3483DA.8080305@zytor.com> Date: Sat, 30 Jul 2011 15:21:14 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:5.0) Gecko/20110707 Thunderbird/5.0 MIME-Version: 1.0 To: David Woodhouse CC: Arnaud Lacombe , Michal Marek , "Ted Ts'o" , Ingo Molnar , x86@kernel.org, linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org Subject: Re: [PATCH v3] x86, kconfig: Default to ARCH=x86 to avoid overriding CONFIG_64BIT References: <1306707270.2029.377.camel@i7.infradead.org> <20110530105809.GA20133@elte.hu> <1A4DB87D-9B32-44C0-B7C9-47A003CABD96@mit.edu> <20110530195545.GG2890@dhcp-172-31-194-241.cam.corp.google.com> <1306795186.2029.459.camel@i7.infradead.org> <1306856937.27477.3.camel@i7.infradead.org> <4E0495F4.7080300@suse.cz> <1311986969.20983.52.camel@i7.infradead.org> <4E34548F.9040909@zytor.com> <1312059539.22074.16.camel@i7.infradead.o! rg> <4E347FC4.60600@zytor.com> <1312064244.22074.21.camel@i7.infradead.org> In-Reply-To: <1312064244.22074.21.camel@i7.infradead.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/30/2011 03:17 PM, David Woodhouse wrote: > On Sat, 2011-07-30 at 15:03 -0700, H. Peter Anvin wrote: >> It isn't meaningless for exactly that reason. For example, >> "make ARCH=x86 USERARCH=i386" and "make ARCH=x86 USERARCH=x86_64" both >> make sense. Similarly, "make ARCH=um USERARCH=i386" is different from >> "make ARCH=um USERARCH=x86_64". > > In that case it's redundant with CONFIG_64BIT, isn't it? Yes, but some architectures have more than one ABI for a particular bitness. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.