99 					   struct sk_buff *skb, u32 mtu,
248 	.mtu			=	ip6_mtu,
263 	unsigned int mtu = dst_metric_raw(dst, RTAX_MTU);  in ip6_blackhole_mtu()  local
265 	return mtu ? : dst->dev->mtu;  in ip6_blackhole_mtu()
269 					 struct sk_buff *skb, u32 mtu,  in ip6_rt_blackhole_update_pmtu()  argument
283 	.mtu			=	ip6_blackhole_mtu,
1597 	unsigned int mtu;  in fib6_mtu()  local
1600 		mtu = res->f6i->fib6_pmtu;  in fib6_mtu()
1607 		mtu = idev->cnf.mtu6;  in fib6_mtu()
1611 	mtu = min_t(unsigned int, mtu, IP6_MAX_MTU);  in fib6_mtu()
1613 	return mtu - lwtunnel_headroom(nh->fib_nh_lws, mtu);  in fib6_mtu()
2007 					 struct rt6_info *rt, int mtu)  in rt6_mtu_change_route_allowed()  argument
2019 	if (dst_mtu(&rt->dst) >= mtu)  in rt6_mtu_change_route_allowed()
2029 				       const struct fib6_nh *nh, int mtu)  in rt6_exceptions_update_pmtu()  argument
2048 			    rt6_mtu_change_route_allowed(idev, entry, mtu))  in rt6_exceptions_update_pmtu()
2049 				dst_metric_set(&entry->dst, RTAX_MTU, mtu);  in rt6_exceptions_update_pmtu()
2723 static void rt6_do_update_pmtu(struct rt6_info *rt, u32 mtu)  in rt6_do_update_pmtu()  argument
2727 	dst_metric_set(&rt->dst, RTAX_MTU, mtu);  in rt6_do_update_pmtu()
2739 				 const struct ipv6hdr *iph, u32 mtu,  in __ip6_rt_update_pmtu()  argument
2764 	mtu = max_t(u32, mtu, IPV6_MIN_MTU);  in __ip6_rt_update_pmtu()
2765 	if (mtu >= dst_mtu(dst))  in __ip6_rt_update_pmtu()
2769 		rt6_do_update_pmtu(rt6, mtu);  in __ip6_rt_update_pmtu()
2807 			rt6_do_update_pmtu(nrt6, mtu);  in __ip6_rt_update_pmtu()
2817 			       struct sk_buff *skb, u32 mtu,  in ip6_rt_update_pmtu()  argument
2820 	__ip6_rt_update_pmtu(dst, sk, skb ? ipv6_hdr(skb) : NULL, mtu,  in ip6_rt_update_pmtu()
2824 void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu,  in ip6_update_pmtu()  argument
2840 		__ip6_rt_update_pmtu(dst, NULL, iph, ntohl(mtu), true);  in ip6_update_pmtu()
2845 void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu)  in ip6_sk_update_pmtu()  argument
2853 	ip6_update_pmtu(skb, sock_net(sk), mtu, oif, sk->sk_mark, sk->sk_uid);  in ip6_sk_update_pmtu()
3088 	unsigned int mtu = dst_mtu(dst);  in ip6_default_advmss()  local
3091 	mtu -= sizeof(struct ipv6hdr) + sizeof(struct tcphdr);  in ip6_default_advmss()
3093 	if (mtu < net->ipv6.sysctl.ip6_rt_min_advmss)  in ip6_default_advmss()
3094 		mtu = net->ipv6.sysctl.ip6_rt_min_advmss;  in ip6_default_advmss()
3102 	if (mtu > IPV6_MAXPLEN - sizeof(struct tcphdr))  in ip6_default_advmss()
3103 		mtu = IPV6_MAXPLEN;  in ip6_default_advmss()
3104 	return mtu;  in ip6_default_advmss()
3110 	unsigned int mtu;  in ip6_mtu()  local
3112 	mtu = dst_metric_raw(dst, RTAX_MTU);  in ip6_mtu()
3113 	if (mtu)  in ip6_mtu()
3116 	mtu = IPV6_MIN_MTU;  in ip6_mtu()
3121 		mtu = idev->cnf.mtu6;  in ip6_mtu()
3125 	mtu = min_t(unsigned int, mtu, IP6_MAX_MTU);  in ip6_mtu()
3127 	return mtu - lwtunnel_headroom(dst->lwtstate, mtu);  in ip6_mtu()
3146 	u32 mtu = 0;  in ip6_mtu_from_fib6()  local
3149 		mtu = f6i->fib6_pmtu;  in ip6_mtu_from_fib6()
3150 		if (mtu)  in ip6_mtu_from_fib6()
3156 		mtu = dst_metric_raw(&rt->dst, RTAX_MTU);  in ip6_mtu_from_fib6()
3160 		mtu = IPV6_MIN_MTU;  in ip6_mtu_from_fib6()
3162 		if (idev && idev->cnf.mtu6 > mtu)  in ip6_mtu_from_fib6()
3163 			mtu = idev->cnf.mtu6;  in ip6_mtu_from_fib6()
3166 	mtu = min_t(unsigned int, mtu, IP6_MAX_MTU);  in ip6_mtu_from_fib6()
3168 	return mtu - lwtunnel_headroom(nh->fib_nh_lws, mtu);  in ip6_mtu_from_fib6()
4781 	unsigned int mtu;  member
4797 		u32 mtu = f6i->fib6_pmtu;  in fib6_nh_mtu_change()  local
4799 		if (mtu >= arg->mtu ||  in fib6_nh_mtu_change()
4800 		    (mtu < arg->mtu && mtu == idev->cnf.mtu6))  in fib6_nh_mtu_change()
4801 			fib6_metric_set(f6i, RTAX_MTU, arg->mtu);  in fib6_nh_mtu_change()
4804 		rt6_exceptions_update_pmtu(idev, nh, arg->mtu);  in fib6_nh_mtu_change()
4839 void rt6_mtu_change(struct net_device *dev, unsigned int mtu)  in rt6_mtu_change()  argument
4843 		.mtu = mtu,  in rt6_mtu_change()