From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759143AbYDBRhP (ORCPT ); Wed, 2 Apr 2008 13:37:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756072AbYDBRhA (ORCPT ); Wed, 2 Apr 2008 13:37:00 -0400 Received: from relay2.sgi.com ([192.48.171.30]:41462 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754750AbYDBRg7 (ORCPT ); Wed, 2 Apr 2008 13:36:59 -0400 Date: Wed, 2 Apr 2008 12:36:55 -0500 From: Paul Jackson To: "H. Peter Anvin" Cc: ying.huang@intel.com, andi@firstfloor.org, mingo@redhat.com, tglx@linutronix.de, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/4] x86_64 boot -v2: Add linked list of struct setup_data Message-Id: <20080402123655.2e316352.pj@sgi.com> In-Reply-To: <47F3B6B6.9010802@zytor.com> References: <1206672584.13404.25.camel@caritas-dev.intel.com> <20080329233155.ee909a04.pj@sgi.com> <1206924877.21451.6.camel@caritas-dev.intel.com> <20080402023947.d4d43f7d.pj@sgi.com> <47F3B6B6.9010802@zytor.com> Organization: SGI X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.12.0; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org hpa wrote: > It is usually handy to have an ID to use as ignore, or not present, and > for that to be zero. Sometimes handy - if needed for specific reasons. But many enumerations (enum or #define constants) in the kernel have no such NONE/ignore/not-present value. What's the use here? I see no use for it. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.940.382.4214