tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-5.4 head: b24ca39180f94e05ffdb3647ca2386841aa7fad7 commit: 7c4008d765d3aa7336da1b907601b366a59ee94f [1/8] powerpc/sstep: Fix load-store and update emulation config: powerpc-randconfig-r021-20210317 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 6db3ab2903f42712f44000afb5aa467efbd25f35) 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 powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/c... git remote add sashal-linux-stable https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git git fetch --no-tags sashal-linux-stable queue-5.4 git checkout 7c4008d765d3aa7336da1b907601b366a59ee94f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): goto unknown_opcode; ^ 1 error generated. vim +/unknown_opcode +2659 arch/powerpc/lib/sstep.c 2652 2653 } 2654 2655 if (OP_IS_LOAD_STORE(op->type) && (op->type & UPDATE)) { 2656 switch (GETTYPE(op->type)) { 2657 case LOAD: 2658 if (ra == rd) 2660 fallthrough; 2661 case STORE: 2662 case LOAD_FP: 2663 case STORE_FP: 2664 if (ra == 0) 2665 goto unknown_opcode; 2666 } 2667 } 2668 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org