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openvswitch: Don't insert empty OVS_VPORT_ATTR_OPTIONS attribute

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The port specific options are currently unused resulting in an
empty OVS_VPORT_ATTR_OPTIONS nested attribute being inserted
into every OVS_VPORT_CMD_GET message.

Don't insert OVS_VPORT_ATTR_OPTIONS if no options are present.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jesse Gross <jesse@nicira.com>
This commit is contained in:
Thomas Graf 2013-04-03 00:30:43 +02:00 committed by Jesse Gross
parent 22e3880a76
commit 5d9633523f
1 changed files with 8 additions and 6 deletions
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14
net/openvswitch/vport.c
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@ -301,17 +301,19 @@ void ovs_vport_get_stats(struct vport *vport, struct ovs_vport_stats *stats)
int ovs_vport_get_options(const struct vport *vport, struct sk_buff *skb)
{
struct nlattr *nla;
int err;
if (!vport->ops->get_options)
return 0;
nla = nla_nest_start(skb, OVS_VPORT_ATTR_OPTIONS);
if (!nla)
return -EMSGSIZE;
if (vport->ops->get_options) {
int err = vport->ops->get_options(vport, skb);
if (err) {
nla_nest_cancel(skb, nla);
return err;
}
err = vport->ops->get_options(vport, skb);
if (err) {
nla_nest_cancel(skb, nla);
return err;
}
nla_nest_end(skb, nla);