From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) (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 B71BA2C9C for ; Thu, 16 Dec 2021 13:55:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1639662905; x=1671198905; h=date:from:cc:subject:message-id:mime-version; bh=Sv/e5v020HBbb6BrzwhcJ6KK3Xm4TniN5p/0e53WUh4=; b=LkarfNIObFWzuNZlPBgxZTzMPDe2Rrrxje8bWgG3dxF3dFwJygUHQdks R3FE21+H2EBd9gWzE+JZK4CUsGcirQ8//k1mUC9VhS+rjsJltsJ73RrcA 81FkCv26CQ654PIXdDZHK3jJiZFRdGZ+jjRUTVmQA5L5h5drV5T/ESWGP Gu48nrPjFftDxC/MUh9in227GMtQ6BDUVcrh3VAoeVTQi8tifoO0WuHg2 XjX3aHLG3f7FLehuEFHtTUYMgm1+uI6d8t6wEhY+Tiv8Wh/3tg7VsL9Qy hlLPGQyKGlEYfT9ZxYihSYAgc01rGaSdMYmWp9XOcyLfzvGCiKq7dKetS g==; X-IronPort-AV: E=McAfee;i="6200,9189,10199"; a="300271382" X-IronPort-AV: E=Sophos;i="5.88,211,1635231600"; d="scan'208";a="300271382" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Dec 2021 05:55:05 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,211,1635231600"; d="scan'208";a="466074514" Received: from lkp-server02.sh.intel.com (HELO 9f38c0981d9f) ([10.239.97.151]) by orsmga006.jf.intel.com with ESMTP; 16 Dec 2021 05:55:04 -0800 Received: from kbuild by 9f38c0981d9f with local (Exim 4.92) (envelope-from ) id 1mxrDr-0003FS-MW; Thu, 16 Dec 2021 13:55:03 +0000 Date: Thu, 16 Dec 2021 21:54:51 +0800 From: kernel test robot Cc: kbuild-all@lists.01.org, llvm@lists.linux.dev Subject: kernel/sched/deadline.o: warning: objtool: enqueue_task_dl()+0x15ec: unreachable instruction Message-ID: <202112162124.NgjglZjY-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: Yafang Shao CC: Peter Zijlstra tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2b14864acbaaf03d9c01982e243a84632524c3ac commit: b5eb4a5f6521d58d5564b8746701bd67a92a2b11 sched/dl: Support schedstats for deadline sched class date: 2 months ago config: x86_64-randconfig-a011-20211216 (https://download.01.org/0day-ci/archive/20211216/202112162124.NgjglZjY-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dd245bab9fbb364faa1581e4f92ba3119a872fba) 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=b5eb4a5f6521d58d5564b8746701bd67a92a2b11 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout b5eb4a5f6521d58d5564b8746701bd67a92a2b11 # 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/media/ kernel/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> kernel/sched/deadline.o: warning: objtool: enqueue_task_dl()+0x15ec: unreachable instruction --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org