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ip6erspan: remove the incorrect mtu limit for ip6erspan

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ip6erspan driver calls ether_setup(), after commit 61e84623ac
("net: centralize net_device min/max MTU checking"), the range
of mtu is [min_mtu, max_mtu], which is [68, 1500] by default.

It causes the dev mtu of the erspan device to not be greater
than 1500, this limit value is not correct for ip6erspan tap
device.

Fixes: 61e84623ac ("net: centralize net_device min/max MTU checking")
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Acked-by: William Tu <u9012063@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
This commit is contained in:
Haishuang Yan 2019-10-08 17:56:03 +08:00 committed by Jakub Kicinski
parent a17fd2cf2d
commit 4123f637a5
1 changed files with 1 additions and 0 deletions
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1
net/ipv6/ip6_gre.c
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@ -2192,6 +2192,7 @@ static void ip6erspan_tap_setup(struct net_device *dev)
{
ether_setup(dev);
dev->max_mtu = 0;
dev->netdev_ops = &ip6erspan_netdev_ops;
dev->needs_free_netdev = true;
dev->priv_destructor = ip6gre_dev_free;