reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://github.com/tobetter/linux/commit/d5f4cb5822810fb9310d976216330c988e94848d
        git remote add tobetter https://github.com/tobetter/linux
        git fetch --no-tags tobetter odroid-5.15.y
        git checkout d5f4cb5822810fb9310d976216330c988e94848d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/gpu/drm/exynos/ drivers/media/i2c/ drivers/staging/fbtft/