From 721976e93e5d8963d0c937ee236489968bfcfb81 Mon Sep 17 00:00:00 2001 From: Chen Haiquan Date: Fri, 27 May 2016 10:49:11 +0800 Subject: [PATCH] vxlan: Accept user specified MTU value when create new vxlan link [ Upstream commit ce577668a426c6a9e2470a09dcd07fbd6e45272a ] 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 0dfbdf4102b9 (vxlan: Factor out device configuration). Fixes: 0dfbdf4102b9 (vxlan: Factor out device configuration) Signed-off-by: Chen Haiquan Acked-by: Cong Wang Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/vxlan.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 0496f1a8a57d..0b24f51718be 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -2985,6 +2985,9 @@ 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: -- 2.34.1