tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 50b8b1d699ac313c0a07a3c185ffb23aecab8abb commit: 8de000cf0265eaa4f63aff9f2c7a3876d2dda9b6 [9171/13745] iommu/mediatek-v1: Allow building as module config: arm-allmodconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 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/commi... 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 8de000cf0265eaa4f63aff9f2c7a3876d2dda9b6 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the linux-next/master HEAD 50b8b1d699ac313c0a07a3c185ffb23aecab8abb builds fine. It may have been fixed somewhere. All errors (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