On Tue, 28 Mar 2023 17:28:47 +0800 Xuan Zhuo wrote: > +/* SPDX-License-Identifier: GPL-2.0 */ > + > +#ifndef __VIRTNET_VIRTIO_H__ > +#define __VIRTNET_VIRTIO_H__ > + > +int virtnet_register_virtio_driver(void); > +void virtnet_unregister_virtio_driver(void); > +#endif nit: this header needs to be added in the previous patch, otherwise there is a transient build warning there.