Lines Matching defs:mtu
184 void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu, int oif,
186 void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu);
202 void rt6_mtu_change(struct net_device *dev, unsigned int mtu);
267 unsigned int mtu;
273 mtu = READ_ONCE(skb_dst(skb)->dev->mtu);
274 mtu -= lwtunnel_headroom(skb_dst(skb)->lwtstate, mtu);
276 mtu = dst_mtu(skb_dst(skb));
278 return mtu;
321 unsigned int mtu;
324 mtu = dst_metric_raw(dst, RTAX_MTU);
325 if (mtu)
329 mtu = IPV6_MIN_MTU;
333 mtu = idev->cnf.mtu6;
337 return mtu - lwtunnel_headroom(dst->lwtstate, mtu);