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ip6_tunnel dont update the mtu on the route.
The ip6_tunnel device did not unset the flag, IFF_XMIT_DST_RELEASE. This will make the dev layer to release the dst before calling the tunnel. The tunnel will not update any mtu/pmtu info, since it does not have a dst on the skb. Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1371,6 +1371,7 @@ static void ip6_tnl_dev_setup(struct net_device *dev)
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dev->flags |= IFF_NOARP;
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dev->addr_len = sizeof(struct in6_addr);
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dev->features |= NETIF_F_NETNS_LOCAL;
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dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
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}
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