From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754864Ab0F1Nk3 (ORCPT ); Mon, 28 Jun 2010 09:40:29 -0400 Received: from faui40.informatik.uni-erlangen.de ([131.188.34.40]:54237 "EHLO faui40.informatik.uni-erlangen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754825Ab0F1Nk2 (ORCPT ); Mon, 28 Jun 2010 09:40:28 -0400 Date: Mon, 28 Jun 2010 15:40:26 +0200 From: Christoph Egger To: Tony Luck , Fenghua Yu , linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] 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 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/ia64 sourcetree for config Items not defined in Kconfig and found 2 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. 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 (2): Removing dead CONFIG_PARAVIRT_GUEST_ASM_CLOBBER_CHECK Removing dead CONFIG_IOMMU_DEBUG arch/ia64/include/asm/native/inst.h | 96 ++++++++-------------------------- arch/ia64/kernel/pci-dma.c | 4 -- 2 files changed, 23 insertions(+), 77 deletions(-)