reproduce (this is a W=1 build):
        git checkout ae2d20002576d2893ecaff25db3d7ef9190ac0b6
        b4 shazam https://lore.kernel.org/r/20250919-rda8810pl-mmc-v1-8-d4f08a05ba4d@mainlining.org
        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=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/dma/ drivers/mmc/host/