From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) (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 BE8E92C9D for ; Sat, 4 Dec 2021 16:50:03 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10187"; a="234642692" X-IronPort-AV: E=Sophos;i="5.87,287,1631602800"; d="scan'208";a="234642692" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Dec 2021 08:49:56 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,287,1631602800"; d="scan'208";a="541930900" Received: from lkp-server02.sh.intel.com (HELO 9e1e9f9b3bcb) ([10.239.97.151]) by orsmga001.jf.intel.com with ESMTP; 04 Dec 2021 08:49:55 -0800 Received: from kbuild by 9e1e9f9b3bcb with local (Exim 4.92) (envelope-from ) id 1mtYEV-000JDJ-2a; Sat, 04 Dec 2021 16:49:55 +0000 Date: Sun, 5 Dec 2021 00:49:37 +0800 From: kernel test robot Cc: kbuild-all@lists.01.org, llvm@lists.linux.dev Subject: drivers/vfio/vfio.o: warning: objtool: vfio_iommu_group_notifier()+0x49f: unreachable instruction Message-ID: <202112050000.Ugi0KRlZ-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: Christoph Hellwig CC: Alex Williamson CC: Jason Gunthorpe CC: Kevin Tian tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 12119cfa1052d512a92524e90ebee85029a918f8 commit: 3af917713230c8a6c3431e60601f0c7ad72eceb6 vfio: refactor noiommu group creation date: 9 weeks ago config: x86_64-randconfig-a001-20211204 (https://download.01.org/0day-ci/archive/20211205/202112050000.Ugi0KRlZ-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=3af917713230c8a6c3431e60601f0c7ad72eceb6 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 3af917713230c8a6c3431e60601f0c7ad72eceb6 # 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 drivers/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/vfio/vfio.o: warning: objtool: vfio_iommu_group_notifier()+0x49f: unreachable instruction --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org