From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5A30768 for ; Sun, 5 Dec 2021 04:27:21 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10188"; a="235897221" X-IronPort-AV: E=Sophos;i="5.87,288,1631602800"; d="scan'208";a="235897221" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Dec 2021 20:27:20 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,288,1631602800"; d="scan'208";a="478758992" Received: from lkp-server02.sh.intel.com (HELO 9e1e9f9b3bcb) ([10.239.97.151]) by orsmga002.jf.intel.com with ESMTP; 04 Dec 2021 20:27:19 -0800 Received: from kbuild by 9e1e9f9b3bcb with local (Exim 4.92) (envelope-from ) id 1mtj7O-000JnT-Ue; Sun, 05 Dec 2021 04:27:18 +0000 Date: Sun, 5 Dec 2021 12:26:23 +0800 From: kernel test robot Cc: kbuild-all@lists.01.org, llvm@lists.linux.dev Subject: net/mptcp/protocol.o: warning: objtool: mptcp_sendmsg_frag()+0x346: unreachable instruction Message-ID: <202112051224.XEFXJ6iN-lkp@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) CC: linux-kernel@vger.kernel.org TO: Paolo Abeni CC: Mat Martineau Hi Paolo, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 79a72162048e42a677bc7336a9f5d86fc3ff9558 commit: ff5a0b421cb23bf6b2898939ffef5b683045d9d3 mptcp: faster active backup recovery date: 4 months ago config: x86_64-randconfig-a015-20211205 (https://download.01.org/0day-ci/archive/20211205/202112051224.XEFXJ6iN-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 5f1d1854eb1450d352663ee732235893c5782237) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff5a0b421cb23bf6b2898939ffef5b683045d9d3 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout ff5a0b421cb23bf6b2898939ffef5b683045d9d3 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash net/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> net/mptcp/protocol.o: warning: objtool: mptcp_sendmsg_frag()+0x346: unreachable instruction --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org