92 					   struct sk_buff *skb, u32 mtu);
201 	.mtu			=	ip6_mtu,
215 	unsigned int mtu = dst_metric_raw(dst, RTAX_MTU);  in ip6_blackhole_mtu()  local
217 	return mtu ? : dst->dev->mtu;  in ip6_blackhole_mtu()
221 					 struct sk_buff *skb, u32 mtu)  in ip6_rt_blackhole_update_pmtu()  argument
240 	.mtu			=	ip6_blackhole_mtu,
1150 			       struct sk_buff *skb, u32 mtu)  in ip6_rt_update_pmtu()  argument
1155 	if (mtu < dst_mtu(dst) && rt6->rt6i_dst.plen == 128) {  in ip6_rt_update_pmtu()
1159 		if (mtu < IPV6_MIN_MTU)  in ip6_rt_update_pmtu()
1160 			mtu = IPV6_MIN_MTU;  in ip6_rt_update_pmtu()
1162 		dst_metric_set(dst, RTAX_MTU, mtu);  in ip6_rt_update_pmtu()
1167 void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu,  in ip6_update_pmtu()  argument
1183 		ip6_rt_update_pmtu(dst, NULL, skb, ntohl(mtu));  in ip6_update_pmtu()
1188 void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu)  in ip6_sk_update_pmtu()  argument
1190 	ip6_update_pmtu(skb, sock_net(sk), mtu,  in ip6_sk_update_pmtu()
1321 	unsigned int mtu = dst_mtu(dst);  in ip6_default_advmss()  local
1324 	mtu -= sizeof(struct ipv6hdr) + sizeof(struct tcphdr);  in ip6_default_advmss()
1326 	if (mtu < net->ipv6.sysctl.ip6_rt_min_advmss)  in ip6_default_advmss()
1327 		mtu = net->ipv6.sysctl.ip6_rt_min_advmss;  in ip6_default_advmss()
1335 	if (mtu > IPV6_MAXPLEN - sizeof(struct tcphdr))  in ip6_default_advmss()
1336 		mtu = IPV6_MAXPLEN;  in ip6_default_advmss()
1337 	return mtu;  in ip6_default_advmss()
1343 	unsigned int mtu = dst_metric_raw(dst, RTAX_MTU);  in ip6_mtu()  local
1345 	if (mtu)  in ip6_mtu()
1348 	mtu = IPV6_MIN_MTU;  in ip6_mtu()
1353 		mtu = idev->cnf.mtu6;  in ip6_mtu()
1357 	return min_t(unsigned int, mtu, IP6_MAX_MTU);  in ip6_mtu()
2364 	unsigned int mtu;  member
2398 	    (dst_mtu(&rt->dst) >= arg->mtu ||  in rt6_mtu_change_route()
2399 	     (dst_mtu(&rt->dst) < arg->mtu &&  in rt6_mtu_change_route()
2401 		dst_metric_set(&rt->dst, RTAX_MTU, arg->mtu);  in rt6_mtu_change_route()
2406 void rt6_mtu_change(struct net_device *dev, unsigned int mtu)  in rt6_mtu_change()  argument
2410 		.mtu = mtu,  in rt6_mtu_change()