[kbuild-all] fs/proc/proc_sysctl.o: warning: objtool: do_sysctl_args()+0xe5: unreachable instruction

CC: linux-kernel(a)vger.kernel.org TO: Vlastimil Babka <vbabka(a)suse.cz&gt; CC: Andrew Morton <akpm(a)linux-foundation.org&gt; CC: Linux Memory Management List <linux-mm(a)kvack.org&gt; CC: Luis Chamberlain <mcgrof(a)kernel.org&gt; CC: Masami Hiramatsu <mhiramat(a)kernel.org&gt; tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 5e857ce6eae7ca21b2055cca4885545e29228fe2 commit: 3db978d480e2843979a2b56f2f7da726f2b295b2 kernel/sysctl: support setting sysctl parameters from kernel command line date: 10 days ago config: x86_64-randconfig-r015-20200618 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 487ca07fcc75d52755c9fe2ee05bcb3b6eeeec44) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git checkout 3db978d480e2843979a2b56f2f7da726f2b295b2 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org