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Diffstat (limited to 'net')
-rw-r--r--net/bridge/br_fdb.c10
-rw-r--r--net/bridge/br_private.h6
-rw-r--r--net/bridge/br_vlan.c19
3 files changed, 34 insertions, 1 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 96ab1d1748d0..b4005f5b28f4 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -114,12 +114,20 @@ void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr)
if (op != p &&
ether_addr_equal(op->dev->dev_addr,
f->addr.addr) &&
- nbp_vlan_find(op, vid)) {
+ (!vid || nbp_vlan_find(op, vid))) {
f->dst = op;
goto skip_delete;
}
}
+ /* maybe bridge device has same hw addr? */
+ if (ether_addr_equal(br->dev->dev_addr,
+ f->addr.addr) &&
+ (!vid || br_vlan_find(br, vid))) {
+ f->dst = NULL;
+ goto skip_delete;
+ }
+
/* delete old one */
fdb_delete(br, f);
skip_delete:
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 939a59e15036..f91e1d9c8e92 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -585,6 +585,7 @@ struct sk_buff *br_handle_vlan(struct net_bridge *br,
int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags);
int br_vlan_delete(struct net_bridge *br, u16 vid);
void br_vlan_flush(struct net_bridge *br);
+bool br_vlan_find(struct net_bridge *br, u16 vid);
int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val);
int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags);
int nbp_vlan_delete(struct net_bridge_port *port, u16 vid);
@@ -666,6 +667,11 @@ static inline void br_vlan_flush(struct net_bridge *br)
{
}
+static inline bool br_vlan_find(struct net_bridge *br, u16 vid)
+{
+ return false;
+}
+
static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags)
{
return -EOPNOTSUPP;
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 4ca4d0a0151c..233ec1c6e9db 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -295,6 +295,25 @@ void br_vlan_flush(struct net_bridge *br)
__vlan_flush(pv);
}
+bool br_vlan_find(struct net_bridge *br, u16 vid)
+{
+ struct net_port_vlans *pv;
+ bool found = false;
+
+ rcu_read_lock();
+ pv = rcu_dereference(br->vlan_info);
+
+ if (!pv)
+ goto out;
+
+ if (test_bit(vid, pv->vlan_bitmap))
+ found = true;
+
+out:
+ rcu_read_unlock();
+ return found;
+}
+
int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val)
{
if (!rtnl_trylock())