95 					   struct sk_buff *skb, u32 mtu);
223 	.mtu			=	ip6_mtu,
237 	unsigned int mtu = dst_metric_raw(dst, RTAX_MTU);  in ip6_blackhole_mtu()  local
239 	return mtu ? : dst->dev->mtu;  in ip6_blackhole_mtu()
243 					 struct sk_buff *skb, u32 mtu)  in ip6_rt_blackhole_update_pmtu()  argument
256 	.mtu			=	ip6_blackhole_mtu,
1325 static void rt6_do_update_pmtu(struct rt6_info *rt, u32 mtu)  in rt6_do_update_pmtu()  argument
1330 	rt->rt6i_pmtu = mtu;  in rt6_do_update_pmtu()
1341 				 const struct ipv6hdr *iph, u32 mtu)  in __ip6_rt_update_pmtu()  argument
1349 	mtu = max_t(u32, mtu, IPV6_MIN_MTU);  in __ip6_rt_update_pmtu()
1350 	if (mtu >= dst_mtu(dst))  in __ip6_rt_update_pmtu()
1354 		rt6_do_update_pmtu(rt6, mtu);  in __ip6_rt_update_pmtu()
1370 			rt6_do_update_pmtu(nrt6, mtu);  in __ip6_rt_update_pmtu()
1383 			       struct sk_buff *skb, u32 mtu)  in ip6_rt_update_pmtu()  argument
1385 	__ip6_rt_update_pmtu(dst, sk, skb ? ipv6_hdr(skb) : NULL, mtu);  in ip6_rt_update_pmtu()
1388 void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu,  in ip6_update_pmtu()  argument
1404 		__ip6_rt_update_pmtu(dst, NULL, iph, ntohl(mtu));  in ip6_update_pmtu()
1409 void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu)  in ip6_sk_update_pmtu()  argument
1411 	ip6_update_pmtu(skb, sock_net(sk), mtu,  in ip6_sk_update_pmtu()
1542 	unsigned int mtu = dst_mtu(dst);  in ip6_default_advmss()  local
1545 	mtu -= sizeof(struct ipv6hdr) + sizeof(struct tcphdr);  in ip6_default_advmss()
1547 	if (mtu < net->ipv6.sysctl.ip6_rt_min_advmss)  in ip6_default_advmss()
1548 		mtu = net->ipv6.sysctl.ip6_rt_min_advmss;  in ip6_default_advmss()
1556 	if (mtu > IPV6_MAXPLEN - sizeof(struct tcphdr))  in ip6_default_advmss()
1557 		mtu = IPV6_MAXPLEN;  in ip6_default_advmss()
1558 	return mtu;  in ip6_default_advmss()
1564 	unsigned int mtu = rt->rt6i_pmtu;  in ip6_mtu()  local
1567 	if (mtu)  in ip6_mtu()
1570 	mtu = dst_metric_raw(dst, RTAX_MTU);  in ip6_mtu()
1571 	if (mtu)  in ip6_mtu()
1574 	mtu = IPV6_MIN_MTU;  in ip6_mtu()
1579 		mtu = idev->cnf.mtu6;  in ip6_mtu()
1583 	return min_t(unsigned int, mtu, IP6_MAX_MTU);  in ip6_mtu()
2632 	unsigned int mtu;  member
2672 			if (rt->rt6i_pmtu && rt->rt6i_pmtu > arg->mtu)  in rt6_mtu_change_route()
2673 				rt->rt6i_pmtu = arg->mtu;  in rt6_mtu_change_route()
2674 		} else if (dst_mtu(&rt->dst) >= arg->mtu ||  in rt6_mtu_change_route()
2675 			   (dst_mtu(&rt->dst) < arg->mtu &&  in rt6_mtu_change_route()
2677 			dst_metric_set(&rt->dst, RTAX_MTU, arg->mtu);  in rt6_mtu_change_route()
2683 void rt6_mtu_change(struct net_device *dev, unsigned int mtu)  in rt6_mtu_change()  argument
2687 		.mtu = mtu,  in rt6_mtu_change()