tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 794c7931a2428a656551f2179e6a093233a6e0aa commit: cbc06f051c524dcfe52ef0d1f30647828e226d30 powerpc/xive: Do not skip CPU-less nodes when creating the IPIs date: 5 days ago config: powerpc-randconfig-r015-20210816 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 44d0a99a12ec7ead4d2f5ef649ba05b40f6d463d) 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-powerpc64le-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout cbc06f051c524dcfe52ef0d1f30647828e226d30 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash 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 <<): The function xive_setup_cpu_ipi() references the function __init xive_request_ipi(). This is often because xive_setup_cpu_ipi lacks a __init annotation or the annotation of xive_request_ipi is wrong. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org