static u32 netif_receive_generic_xdp(struct sk_buff *skb,
				     struct xdp_buff *xdp,
				     struct bpf_prog *xdp_prog)
static u32 netif_receive_generic_xdp(struct sk_buff **pskb,
				     struct xdp_buff *xdp,
				     struct bpf_prog *xdp_prog)