reproduce (this is a W=1 build):
        git remote add drm-xe https://gitlab.freedesktop.org/drm/xe/kernel.git
        git fetch --no-tags drm-xe drm-xe-next-fixes
        git checkout 5e905ec67214444362b81345ef8fde63e58425b6

        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash