Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933126AbbDISNF (ORCPT ); Thu, 9 Apr 2015 14:13:05 -0400 Received: from lb1-smtp-cloud3.xs4all.net ([194.109.24.22]:35780 "EHLO lb1-smtp-cloud3.xs4all.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932833AbbDISND (ORCPT ); Thu, 9 Apr 2015 14:13:03 -0400 Message-ID: <1428603178.13881.20.camel@x220> Subject: Re: drm/msm/mdp5: undefined CONFIG_MSM_BUS_SCALING From: Paul Bolle To: Greg KH Cc: Rob Clark , Valentin Rothberg , Hai Li , "dri-devel@lists.freedesktop.org" , Linux Kernel Mailing List , David Airlie , rupran@einserver.de, stefan.hengelein@fau.de Date: Thu, 09 Apr 2015 20:12:58 +0200 In-Reply-To: <20150409170707.GA7742@kroah.com> References: <20150409112240.GA4748@station.rsr.lip6.fr> <20150409142024.GA3040@kroah.com> <20150409170707.GA7742@kroah.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4 (3.10.4-4.fc20) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1471 Lines: 30 On Thu, 2015-04-09 at 19:07 +0200, Greg KH wrote: > I really don't understand. Why is this code in the kernel tree if it > can't be built? How does anyone use this? By taking it and copying it > where? If it can't be built, and no one can update it, and of course > not run it, why is it here? What good is this code doing sitting here? The Erlangen bot (courtesy of Valentin, Stefan, and Andreas) has taken over what I've been doing for quite some time, but doing it much more thoroughly. And my experience tells me that the reports they'll send in will trigger more discussions like this one. A lesson I learned from my daily checks for Kconfig oddities is that people go to great lengths defending unbuildable code. (Do a web search for ATHEROS_AR231X to find a discussion that dragged on for over three years!) Personally I stopped caring after someone insisted on having a file in the tree that was in no way connected to the build system: not a single line in any of the Makefiles pointed at it. So, as far as I'm concerned, if people can't point at a patch pending, somehow, somewhere, that would make their code buildable one might as well delete the code. I really think it's as simple as that. Paul Bolle -- 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/