reproduce (this is a W=1 build):
        git checkout v7.0
        b4 shazam https://lore.kernel.org/r/1775629564-11267-1-git-send-email-shawn.lin@rock-chips.com

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/mmc/host/