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-rw-r--r--net/bridge/br_if.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 9b46d2dc4c22..41f0a696a65f 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -650,7 +650,16 @@ int br_add_if(struct net_bridge *br, struct net_device *dev,
if (br_fdb_insert(br, p, dev->dev_addr, 0))
netdev_err(dev, "failed insert local address bridge forwarding table\n");
- err = nbp_vlan_init(p);
+ if (br->dev->addr_assign_type != NET_ADDR_SET) {
+ /* Ask for permission to use this MAC address now, even if we
+ * don't end up choosing it below.
+ */
+ err = dev_pre_changeaddr_notify(br->dev, dev->dev_addr, extack);
+ if (err)
+ goto err7;
+ }
+
+ err = nbp_vlan_init(p, extack);
if (err) {
netdev_err(dev, "failed to initialize vlan filtering on this port\n");
goto err7;
@@ -741,3 +750,15 @@ void br_port_flags_change(struct net_bridge_port *p, unsigned long mask)
if (mask & BR_NEIGH_SUPPRESS)
br_recalculate_neigh_suppress_enabled(br);
}
+
+bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag)
+{
+ struct net_bridge_port *p;
+
+ p = br_port_get_rtnl_rcu(dev);
+ if (!p)
+ return false;
+
+ return p->flags & flag;
+}
+EXPORT_SYMBOL_GPL(br_port_flag_is_set);