Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756711Ab0GNNVM (ORCPT ); Wed, 14 Jul 2010 09:21:12 -0400 Received: from faui40.informatik.uni-erlangen.de ([131.188.34.40]:45153 "EHLO faui40.informatik.uni-erlangen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754734Ab0GNNVK (ORCPT ); Wed, 14 Jul 2010 09:21:10 -0400 Date: Wed, 14 Jul 2010 15:21:06 +0200 From: Christian Dietrich To: Mauro Carvalho Chehab , Patrick Boettcher , Olivier Grenie , =?iso-8859-1?Q?M=E1rton_N=E9meth?= , Tejun Heo , Muralidharan Karicheri , Vaibhav Hiremath , Julia Lawall , Jonathan Corbet , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: vamos-dev@i4.informatik.uni-erlangen.de Subject: [PATCH 0/4] Removing dead code Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1918 Lines: 49 Hi all! As part of the VAMOS[0] research project at the University of Erlangen we are looking at multiple integrity errors in linux' configuration system. I've been running a check on the drivers/media sourcetree for config Items not defined in Kconfig and found 4 such cases. Sourcecode blocks depending on these Items are not reachable from a vanilla kernel -- dead code. I've seen such dead blocks made on purpose e.g. while integrating new features into the kernel but generally they're just useless. There were also CONFIG_ options set within a source file. This created code blocks which were always selected and compiled. Each of the patches in this patchset removes on such dead config Item, I'd be glad if you consider applying them. I've been doing deeper analysis of such issues before and can do so again but I'm not so sure they were fastly usefull. I build the patches against a vanilla kernel in order to try if the kernel compiles with this patches Please keep me informed of this patch getting confirmed / merged so we can keep track of it. Regards Christian Dietrich [0] http://vamos1.informatik.uni-erlangen.de/ Christian Dietrich (4): drivers/media/dvb: Remove dead Configs drivers/media/dvb: Remove undead configs drivers/media/video: Remove dead CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE drivers/media/video: Remove dead CONFIG_OLPC_X0_1 drivers/media/dvb/frontends/dib0090.c | 126 --------------------------------- drivers/media/video/omap/omap_vout.c | 8 -- drivers/media/video/ov7670.c | 37 ---------- 3 files changed, 0 insertions(+), 171 deletions(-) -- 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/