inner_skb        4338 include/linux/skbuff.h static inline int skb_tnl_header_len(const struct sk_buff *inner_skb)
inner_skb        4340 include/linux/skbuff.h 	return (skb_mac_header(inner_skb) - inner_skb->head) -
inner_skb        4341 include/linux/skbuff.h 		SKB_GSO_CB(inner_skb)->mac_offset;