
__be16 skb_network_protocol(struct sk_buff *skb, int *depth)
{
	__be16 type = skb->protocol;

	/* Tunnel gso handlers can set protocol to ethernet. */
	if (type == htons(ETH_P_TEB)) {
		struct ethhdr *eth;

		if (unlikely(!pskb_may_pull(skb, sizeof(struct ethhdr))))
			return 0;

		eth = (struct ethhdr *)skb->data;
		type = eth->h_proto;
	}

	return __vlan_get_protocol(skb, type, depth);
Unknown