From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 11 May 2001 06:39:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 11 May 2001 06:39:43 -0400 Received: from 13dyn241.delft.casema.net ([212.64.76.241]:54793 "EHLO abraracourcix.bitwizard.nl") by vger.kernel.org with ESMTP id ; Fri, 11 May 2001 06:39:38 -0400 Message-Id: <200105111039.MAA18522@cave.bitwizard.nl> Subject: Re: Source code compatibility in Stable series???? In-Reply-To: <20010511123257.A6023@gruyere.muc.suse.de> from Andi Kleen at "May 11, 2001 12:32:57 pm" To: Andi Kleen Date: Fri, 11 May 2001 12:39:29 +0200 (MEST) CC: Petr Vandrovec , Rogier Wolff , linux-kernel@vger.kernel.org, davem@redhat.com From: R.E.Wolff@BitWizard.nl (Rogier Wolff) X-Mailer: ELM [version 2.4ME+ PL60 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andi Kleen wrote: > On Fri, May 11, 2001 at 12:21:59PM +0000, Petr Vandrovec wrote: > > When I was updating VMware's vmnet, I decided to use > > > > #ifdef skb_shinfo > > Yes I forgot that RedHat already shipped it :-( > > > This gives you maximal backward compatibility, as all public zerocopy > > patches contain this macro. Only thing is that Dave has to remember > > that when he turns skb_shinfo into inline function, an identity #define have > > to be added. > > No such guarantee for binary only software ;) Right. I therefore refuse to maintain binary modules for my clients. This usually convinces them to release source code. But it's always been said that source code compatiblity would be maintained. I'm a bit pissed that people just go about changing public source-level interfaces. Roger. -- ** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2137555 ** *-- BitWizard writes Linux device drivers for any device you may have! --* * There are old pilots, and there are bold pilots. * There are also old, bald pilots.