Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757555Ab0G2P2o (ORCPT ); Thu, 29 Jul 2010 11:28:44 -0400 Received: from faui40.informatik.uni-erlangen.de ([131.188.34.40]:40012 "EHLO faui40.informatik.uni-erlangen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753848Ab0G2P2n (ORCPT ); Thu, 29 Jul 2010 11:28:43 -0400 Date: Thu, 29 Jul 2010 17:28:40 +0200 From: Christoph Egger To: Jeff Dike , Andrew Morton , Christoph Hellwig , user-mode-linux-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Cc: vamos-dev@i4.informatik.uni-erlangen.de Subject: [PATCH 0/3] 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: 2015 Lines: 50 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 arch/um sourcetree for config Items not defined in Kconfig and found 10 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. 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. As reported earlier today the build currently fails for plain um but adding this patchset doesn't change the failing in any way. That was a i386 build. Please keep me informed of this patch getting confirmed / merged so we can keep track of it. Regards Christoph Egger [0] http://vamos1.informatik.uni-erlangen.de/ Christoph Egger (3): Removing dead PROC_MM Removing conditionalizing containing exactly the same code Removing dead copy&paste code arch/um/kernel/ptrace.c | 21 --------------------- arch/um/sys-i386/asm/archparam.h | 4 ---- arch/um/sys-i386/shared/sysdep/system.h | 11 +---------- arch/um/sys-ppc/misc.S | 6 ------ arch/um/sys-ppc/shared/sysdep/ptrace.h | 5 +---- arch/um/sys-x86_64/shared/sysdep/system.h | 10 +--------- 6 files changed, 3 insertions(+), 54 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/