From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) (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 F2FC02CA0 for ; Tue, 7 Dec 2021 10:00:53 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10190"; a="237486834" X-IronPort-AV: E=Sophos;i="5.87,293,1631602800"; d="scan'208";a="237486834" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Dec 2021 02:00:53 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,293,1631602800"; d="scan'208";a="600065858" Received: from lkp-server02.sh.intel.com (HELO 9e1e9f9b3bcb) ([10.239.97.151]) by FMSMGA003.fm.intel.com with ESMTP; 07 Dec 2021 02:00:52 -0800 Received: from kbuild by 9e1e9f9b3bcb with local (Exim 4.92) (envelope-from ) id 1muXHH-000MQq-HJ; Tue, 07 Dec 2021 10:00:51 +0000 Date: Tue, 7 Dec 2021 18:00:13 +0800 From: kernel test robot Cc: kbuild-all@lists.01.org, llvm@lists.linux.dev Subject: arch/x86/kernel/alternative.o: warning: objtool: apply_retpolines()+0x35: unreachable instruction Message-ID: <202112071705.8kYsBmuj-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: Peter Zijlstra CC: Borislav Petkov Hi Peter, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: cd8c917a56f20f48748dd43d9ae3caff51d5b987 commit: 7508500900814d14e2e085cdc4e28142721abbdf x86/alternative: Implement .retpoline_sites support date: 6 weeks ago config: x86_64-randconfig-r035-20211128 (https://download.01.org/0day-ci/archive/20211207/202112071705.8kYsBmuj-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 5c64d8ef8cc0c0ed3e0f2ae693d99e7f70f20a84) 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=7508500900814d14e2e085cdc4e28142721abbdf git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 7508500900814d14e2e085cdc4e28142721abbdf # 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 arch/x86/ block// crypto// drivers/ fs// kernel// mm// net/ sound/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> arch/x86/kernel/alternative.o: warning: objtool: apply_retpolines()+0x35: unreachable instruction --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org