reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux.git/commit/?id=17047a3326a961f01a2e6de8a6fa0a7ac74ebbb4
        git remote add mripard https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux.git
        git fetch --no-tags mripard drm/tidss/field-api
        git checkout 17047a3326a961f01a2e6de8a6fa0a7ac74ebbb4
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash dtbs_check