From: Chen Haiquan <oc@yunify.com>
To: unlisted-recipients:; (no To-header on input)
Cc: netdev@vger.kernel.org, Chen Haiquan <oc@yunify.com>
Subject: [PATCH] vxlan: Accept user specified MTU value when create new vxlan link
Date: Fri, 27 May 2016 10:49:11 +0800 [thread overview]
Message-ID: <1464317351-22316-1-git-send-email-oc@yunify.com> (raw)
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 <oc@yunify.com>
---
drivers/net/vxlan.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 8ff30c3..f999db2 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -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:
--
2.7.4
next reply other threads:[~2016-05-27 2:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-27 2:49 Chen Haiquan [this message]
2016-05-27 16:09 ` [PATCH] vxlan: Accept user specified MTU value when create new vxlan link Cong Wang
2016-05-28 15:22 ` oc
2016-05-31 3:27 ` Cong Wang
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