reproduce (this is a W=1 build):
        # https://github.com/shenki/linux/commit/5214fc6577c9205367510a3e0e6b80200bf47fe7
        git remote add shenki https://github.com/shenki/linux
        git fetch --no-tags shenki aspeed-6.9-rebase
        git checkout 5214fc6577c9205367510a3e0e6b80200bf47fe7
        # 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/