summaryrefslogtreecommitdiff
path: root/net/8021q
diff options
context:
space:
mode:
Diffstat (limited to 'net/8021q')
-rw-r--r--net/8021q/vlan_core.c9
-rw-r--r--net/8021q/vlan_dev.c7
2 files changed, 14 insertions, 2 deletions
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 8a15eaa..6ee48aa 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -9,7 +9,7 @@ bool vlan_do_receive(struct sk_buff **skbp)
{
struct sk_buff *skb = *skbp;
__be16 vlan_proto = skb->vlan_proto;
- u16 vlan_id = skb->vlan_tci & VLAN_VID_MASK;
+ u16 vlan_id = vlan_tx_tag_get_id(skb);
struct net_device *vlan_dev;
struct vlan_pcpu_stats *rx_stats;
@@ -91,7 +91,12 @@ EXPORT_SYMBOL(__vlan_find_dev_deep);
struct net_device *vlan_dev_real_dev(const struct net_device *dev)
{
- return vlan_dev_priv(dev)->real_dev;
+ struct net_device *ret = vlan_dev_priv(dev)->real_dev;
+
+ while (is_vlan_dev(ret))
+ ret = vlan_dev_priv(ret)->real_dev;
+
+ return ret;
}
EXPORT_SYMBOL(vlan_dev_real_dev);
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 3a8c8fd..1cd3d2a 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -73,6 +73,8 @@ vlan_dev_get_egress_qos_mask(struct net_device *dev, struct sk_buff *skb)
{
struct vlan_priority_tci_mapping *mp;
+ smp_rmb(); /* coupled with smp_wmb() in vlan_dev_set_egress_priority() */
+
mp = vlan_dev_priv(dev)->egress_priority_map[(skb->priority & 0xF)];
while (mp) {
if (mp->priority == skb->priority) {
@@ -249,6 +251,11 @@ int vlan_dev_set_egress_priority(const struct net_device *dev,
np->next = mp;
np->priority = skb_prio;
np->vlan_qos = vlan_qos;
+ /* Before inserting this element in hash table, make sure all its fields
+ * are committed to memory.
+ * coupled with smp_rmb() in vlan_dev_get_egress_qos_mask()
+ */
+ smp_wmb();
vlan->egress_priority_map[skb_prio & 0xF] = np;
if (vlan_qos)
vlan->nr_egress_mappings++;