95 struct ip_tunnel {  struct
96 	struct ip_tunnel __rcu	*next;  argument
111 	struct ip_tunnel_dst __percpu *dst_cache;  argument
113 	struct ip_tunnel_parm parms;  argument
116 	struct ip_tunnel_encap encap;  argument
122 	struct ip_tunnel_6rd_parm ip6rd;  argument
124 	struct ip_tunnel_prl_entry __rcu *prl;	/* potential router list */  argument
125 	unsigned int		prl_count;	/* # of entries in PRL */
126 	int			ip_tnl_net_id;
127 	struct gro_cells	gro_cells;
128 	bool			collect_md;