xfrm_af2proto      44 net/ipv4/xfrm4_mode_tunnel.c 	top_iph->protocol = xfrm_af2proto(skb->dst->ops->family);
xfrm_af2proto      48 net/ipv6/xfrm6_mode_tunnel.c 	top_iph->nexthdr = xfrm_af2proto(skb->dst->ops->family);
xfrm_af2proto     203 net/xfrm/xfrm_output.c 				xfrm_af2proto(skb->dst->ops->family));