reproduce (this is a W=1 build):
        # https://github.com/gestionlin/linux/commit/585c4413fc2f6385d74132e13b42cba3e4123eee
        git remote add linyunsheng https://github.com/gestionlin/linux.git
        git fetch --no-tags linyunsheng net-next-pp-inflight-fix
        git checkout 585c4413fc2f6385d74132e13b42cba3e4123eee
        # 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