From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) (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 8AA182C80 for ; Fri, 10 Dec 2021 10:14:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1639131251; x=1670667251; h=date:from:cc:subject:message-id:mime-version; bh=Vs79zxkkBLzczziAhRnjlUEXXeJCa8cLw/v+L/XWxIQ=; b=YMpTM3BUJGo7574AXs9Z7eOjdy8vL7RF71Z4lg51fpGpyLMxTuPdsF8j hGM4EotuBfnUfHX0Xd6SFkgfcet0xuhWKtvCMBM/epxpViUNdDyJ/Sm3W Vv9MyE2qJ15y/8ApseSxDfUAstZ7yPMUzr6xqaL3RSqoXuvlgETJ+Pb0J NpC76tNeFxGlLqhDjkA0sFe8DGpiw/S8RFp+Iy2kFf51vdzd/P+nqW1Ze ENCa9xMZVzBDHNjOVMHXFG5xBnHtF8mG8LR/CV/g25/JNGpQVqqngsQwv 7ri/qBAC8BzYANLZGMeqyHiowBns+4vooG6oHJPmOMEm2ngDp5qgpWebQ w==; X-IronPort-AV: E=McAfee;i="6200,9189,10193"; a="238122844" X-IronPort-AV: E=Sophos;i="5.88,195,1635231600"; d="scan'208";a="238122844" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Dec 2021 02:14:02 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,195,1635231600"; d="scan'208";a="503873867" Received: from lkp-server02.sh.intel.com (HELO 9e1e9f9b3bcb) ([10.239.97.151]) by orsmga007.jf.intel.com with ESMTP; 10 Dec 2021 02:14:01 -0800 Received: from kbuild by 9e1e9f9b3bcb with local (Exim 4.92) (envelope-from ) id 1mvcue-000336-F6; Fri, 10 Dec 2021 10:14:00 +0000 Date: Fri, 10 Dec 2021 18:13:47 +0800 From: kernel test robot Cc: kbuild-all@lists.01.org, llvm@lists.linux.dev Subject: [linux-next:master 2637/5842] drivers/auxdisplay/charlcd.o: warning: objtool: charlcd_register()+0x2d4: unreachable instruction Message-ID: <202112101807.jvagJ8rt-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 Memory Management List TO: Luiz Sampaio CC: Miguel Ojeda tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 4eee8d0b64ecc3231040fa68ba750317ffca5c52 commit: 4daa9ff89ef27be43c15995412d6aee393a78200 [2637/5842] auxdisplay: charlcd: checking for pointer reference before dereferencing config: x86_64-randconfig-a015-20211205 (https://download.01.org/0day-ci/archive/20211210/202112101807.jvagJ8rt-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/next/linux-next.git/commit/?id=4daa9ff89ef27be43c15995412d6aee393a78200 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 4daa9ff89ef27be43c15995412d6aee393a78200 # 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 crypto// drivers/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/auxdisplay/charlcd.o: warning: objtool: charlcd_register()+0x2d4: unreachable instruction --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org