[kbuild-all] [tip:x86/seves 63/75] arch/x86/kernel/sev-es.o: warning: objtool: ist_exc_vmm_communication()+0x12: unreachable instruction

CC: linux-kernel(a)vger.kernel.org CC: x86(a)kernel.org TO: Joerg Roedel <jroedel(a)suse.de&gt; CC: Borislav Petkov <bp(a)suse.de&gt; tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/seves head: e6eb15c9ba3165698488ae5c34920eea20eaa38e commit: cb1ad3ecea959593400dfac4f027dbc005e62c39 [63/75] x86/sev-es: Handle #DB Events config: x86_64-randconfig-r001-20200913 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project b2c32c90bab09a6e2c1f370429db26017a182143) 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 cb1ad3ecea959593400dfac4f027dbc005e62c39 # 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 >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org