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Subject[PATCH AUTOSEL for 4.14 037/110] ip6_gre: remove the incorrect mtu limit for ipgre tap
Date
From: Xin Long <lucien.xin@gmail.com>

[ Upstream commit 2c52129a7d74d017320804c6928de770815c5f4a ]

The same fix as the patch "ip_gre: remove the incorrect mtu limit for
ipgre tap" is also needed for ip6_gre.

Fixes: 61e84623ace3 ("net: centralize net_device min/max MTU checking")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
net/ipv6/ip6_gre.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 5b4870caf268..e8ab306794d8 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1335,6 +1335,7 @@ static void ip6gre_tap_setup(struct net_device *dev)

ether_setup(dev);

+ dev->max_mtu = 0;
dev->netdev_ops = &ip6gre_tap_netdev_ops;
dev->needs_free_netdev = true;
dev->priv_destructor = ip6gre_dev_free;
--
2.11.0
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