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authorJiri Pirko <jiri@resnulli.us>2012-10-14 04:30:56 +0000
committerDavid S. Miller <davem@davemloft.net>2012-10-16 14:41:46 -0400
commit55462cf30ad9768fff6a6d36db21879146a39bdf (patch)
treef306def961d7f9ca6cc835c5133c592973f91a0c /net
parent73b7656ce4e09eb137ee6f845a9e11a7f132df1c (diff)
downloadvexpress-lsk-55462cf30ad9768fff6a6d36db21879146a39bdf.tar.gz
vlan: fix bond/team enslave of vlan challenged slave/port
In vlan_uses_dev() check for number of vlan devs rather than existence of vlan_info. The reason is that vlan id 0 is there without appropriate vlan dev on it by default which prevented from enslaving vlan challenged dev. Reported-by: Jon Stanley <jstanley@rmrf.net> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/8021q/vlan_core.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index fbbf1fa0094..65e06abe023 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -366,6 +366,13 @@ EXPORT_SYMBOL(vlan_vids_del_by_dev);
bool vlan_uses_dev(const struct net_device *dev)
{
- return rtnl_dereference(dev->vlan_info) ? true : false;
+ struct vlan_info *vlan_info;
+
+ ASSERT_RTNL();
+
+ vlan_info = rtnl_dereference(dev->vlan_info);
+ if (!vlan_info)
+ return false;
+ return vlan_info->grp.nr_vlan_devs ? true : false;
}
EXPORT_SYMBOL(vlan_uses_dev);