reproduce (this is a W=1 build):
        # https://github.com/davidhildenbrand/linux/commit/754bcc13125987809bf134f12b7d8db0bf74934c
        git remote add davidhildenbrand https://github.com/davidhildenbrand/linux
        git fetch --no-tags davidhildenbrand balloon
        git checkout 754bcc13125987809bf134f12b7d8db0bf74934c

        # 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/misc/