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Diffstat (limited to 'net/8021q/vlan_core.c')
-rw-r--r--net/8021q/vlan_core.c25
1 files changed, 14 insertions, 11 deletions
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 65e06abe023f..f3b6f515eba6 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -60,21 +60,25 @@ bool vlan_do_receive(struct sk_buff **skbp)
return true;
}
-/* Must be invoked with rcu_read_lock or with RTNL. */
-struct net_device *__vlan_find_dev_deep(struct net_device *real_dev,
+/* Must be invoked with rcu_read_lock. */
+struct net_device *__vlan_find_dev_deep(struct net_device *dev,
u16 vlan_id)
{
- struct vlan_info *vlan_info = rcu_dereference_rtnl(real_dev->vlan_info);
+ struct vlan_info *vlan_info = rcu_dereference(dev->vlan_info);
if (vlan_info) {
return vlan_group_get_device(&vlan_info->grp, vlan_id);
} else {
/*
- * Bonding slaves do not have grp assigned to themselves.
- * Grp is assigned to bonding master instead.
+ * Lower devices of master uppers (bonding, team) do not have
+ * grp assigned to themselves. Grp is assigned to upper device
+ * instead.
*/
- if (netif_is_bond_slave(real_dev))
- return __vlan_find_dev_deep(real_dev->master, vlan_id);
+ struct net_device *upper_dev;
+
+ upper_dev = netdev_master_upper_dev_get_rcu(dev);
+ if (upper_dev)
+ return __vlan_find_dev_deep(upper_dev, vlan_id);
}
return NULL;
@@ -140,6 +144,7 @@ err_free:
kfree_skb(skb);
return NULL;
}
+EXPORT_SYMBOL(vlan_untag);
/*
@@ -220,8 +225,7 @@ static int __vlan_vid_add(struct vlan_info *vlan_info, unsigned short vid,
if (!vid_info)
return -ENOMEM;
- if ((dev->features & NETIF_F_HW_VLAN_FILTER) &&
- ops->ndo_vlan_rx_add_vid) {
+ if (dev->features & NETIF_F_HW_VLAN_FILTER) {
err = ops->ndo_vlan_rx_add_vid(dev, vid);
if (err) {
kfree(vid_info);
@@ -278,8 +282,7 @@ static void __vlan_vid_del(struct vlan_info *vlan_info,
unsigned short vid = vid_info->vid;
int err;
- if ((dev->features & NETIF_F_HW_VLAN_FILTER) &&
- ops->ndo_vlan_rx_kill_vid) {
+ if (dev->features & NETIF_F_HW_VLAN_FILTER) {
err = ops->ndo_vlan_rx_kill_vid(dev, vid);
if (err) {
pr_warn("failed to kill vid %d for device %s\n",