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Commit ce577668 authored by Chen Haiquan's avatar Chen Haiquan Committed by David S. Miller
Browse files

vxlan: Accept user specified MTU value when create new vxlan link 



When create a new vxlan link, example:
  ip link add vtap mtu 1440 type vxlan vni 1 dev eth0

The argument "mtu" has no effect, because it is not set to conf->mtu. The
default value is used in vxlan_dev_configure function.

This problem was introduced by commit 0dfbdf41 (vxlan: Factor out device
configuration).

Fixes: 0dfbdf41 (vxlan: Factor out device configuration)
Signed-off-by: default avatarChen Haiquan <oc@yunify.com>
Acked-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bcf91bdb

drivers/net/vxlan.c

+3 −0
Original line number Diff line number Diff line
@@ -3086,6 +3086,9 @@ static int vxlan_newlink(struct net *src_net, struct net_device *dev, 
	if (data[IFLA_VXLAN_REMCSUM_NOPARTIAL])

		conf.flags |= VXLAN_F_REMCSUM_NOPARTIAL;



	if (tb[IFLA_MTU])

		conf.mtu = nla_get_u32(tb[IFLA_MTU]);



	err = vxlan_dev_configure(src_net, dev, &conf);

	switch (err) {

	case -ENODEV: