reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/commit/?id=3baa931df8381661c94796a782d473e44391c0dc
        git remote add driver-core https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git
        git fetch --no-tags driver-core debugfs_cleanup
        git checkout 3baa931df8381661c94796a782d473e44391c0dc
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/platform/x86/amd/