Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757698Ab3GZIBk (ORCPT ); Fri, 26 Jul 2013 04:01:40 -0400 Received: from mail-we0-f176.google.com ([74.125.82.176]:54663 "EHLO mail-we0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752919Ab3GZIBf (ORCPT ); Fri, 26 Jul 2013 04:01:35 -0400 Date: Fri, 26 Jul 2013 10:01:15 +0200 From: Richard Cochran To: Jason Gunthorpe Cc: Mark Rutland , "devicetree@vger.kernel.org" , "ksummit-2013-discuss@lists.linuxfoundation.org" , Russell King - ARM Linux , Samuel Ortiz , Pawel Moll , Stephen Warren , Catalin Marinas , Domenico Andreoli , "rob.herring@calxeda.com" , "linux-kernel@vger.kernel.org" , Olof Johansson , Dave P Martin , "linux-arm-kernel@lists.infradead.org" , Ian Campbell Subject: Re: DT bindings as ABI [was: Do we have people interested in device tree janitoring / cleanup?] Message-ID: <20130726080115.GA5436@netboy> References: <20130725175702.GC22291@e106331-lin.cambridge.arm.com> <51F168FC.9070906@wwwdotorg.org> <20130725182920.GA24955@e106331-lin.cambridge.arm.com> <20130725184834.GA8296@netboy> <20130725213753.GC17616@obsidianresearch.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130725213753.GC17616@obsidianresearch.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 713 Lines: 20 On Thu, Jul 25, 2013 at 03:37:53PM -0600, Jason Gunthorpe wrote: > > We use DT has a kernel configuration input. Our environment is > designed to guarantee 100% that the kernel and DT match exactly. DT > very deliberately isn't an ABI boundary in our systems. Think about what you just said. The DT describes the *hardware* not the kernel. Why should you ever need to update your DT at all? (Hint: the answer is, because the DT system is broken.) Thanks, Richard -- 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/