reproduce (this is a W=1 build):
        # https://github.com/bjackman/linux/commit/d8e2f01eaf621d38b5358709e26136c4bc69d25c
        git remote add bjackman https://github.com/bjackman/linux
        git fetch --no-tags bjackman asi/next
        git checkout d8e2f01eaf621d38b5358709e26136c4bc69d25c

        # 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 prepare