From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753375AbcGTBMX (ORCPT ); Tue, 19 Jul 2016 21:12:23 -0400 Received: from mga09.intel.com ([134.134.136.24]:23836 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752495AbcGTBMU (ORCPT ); Tue, 19 Jul 2016 21:12:20 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.28,391,1464678000"; d="scan'208";a="849577280" Date: Wed, 20 Jul 2016 09:12:16 +0800 From: Fengguang Wu To: Jann Horn , kbuild-all@01.org, James Morris , linux-kernel@vger.kernel.org Subject: Re: [kbuild-all] security/yama/yama_lsm.o: warning: objtool: report_access()+0x210: function has unreachable instruction Message-ID: <20160720011216.GO17027@wfg-t540p.sh.intel.com> References: <201607192204.fvKwcnpe%fengguang.wu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <201607192204.fvKwcnpe%fengguang.wu@intel.com> User-Agent: Mutt/1.6.0 (2016-04-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Jann, Sorry please ignore this one -- it looks like false warning from old gcc 4.4 and 4.6 -- we just enabled old compiler tests triggered 10k these warnings.. Thanks, Fengguang On Tue, Jul 19, 2016 at 10:20:05PM +0800, kbuild test robot wrote: >tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >head: 47ef4ad2684d380dd6d596140fb79395115c3950 >commit: dca6b4149181baaa363b9a7ce7c550840bb3bc83 Yama: fix double-spinlock and user access in atomic context >date: 8 weeks ago >config: x86_64-randconfig-s2-07191718 (attached as .config) >compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 >reproduce: > git checkout dca6b4149181baaa363b9a7ce7c550840bb3bc83 > # save the attached .config to linux build tree > make ARCH=x86_64 > >All warnings (new ones prefixed by >>): > >>> security/yama/yama_lsm.o: warning: objtool: report_access()+0x210: function has unreachable instruction > >--- >0-DAY kernel test infrastructure Open Source Technology Center >https://lists.01.org/pipermail/kbuild-all Intel Corporation >_______________________________________________ >kbuild-all mailing list >kbuild-all@lists.01.org >https://lists.01.org/mailman/listinfo/kbuild-all