virtnet_xdp_handler
ret = virtnet_xdp_handler(prog, xdp, dev, xdp_xmit, stats);
ret = virtnet_xdp_handler(prog, xdp, dev, xdp_xmit,
act = virtnet_xdp_handler(xdp_prog, &xdp, dev, xdp_xmit, stats);
act = virtnet_xdp_handler(xdp_prog, &xdp, dev, xdp_xmit, stats);
static int virtnet_xdp_handler(struct bpf_prog *xdp_prog, struct xdp_buff *xdp,