reproduce (this is a W=1 build):
        git remote add drm-misc https://gitlab.freedesktop.org/drm/misc/kernel.git
        git fetch drm-misc drm-misc-next
        git checkout drm-misc/drm-misc-next
        b4 shazam https://lore.kernel.org/r/20260326100248.1171828-3-wenst@chromium.org

        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        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=$HOME/0day COMPILER=clang-19 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-19 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/gpu/drm/adp/ drivers/gpu/drm/renesas/rcar-du/