1 files changed, 4 insertions, 0 deletions

diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 6845a258408..f3a2e29be40 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -428,6 +428,10 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
         spin_lock_bh(&br->lock);
         br_stp_recalculate_bridge_id(br);
         br_features_recompute(br);
+
+        if ((dev->flags & IFF_UP) && netif_carrier_ok(dev) &&
+            (br->dev->flags & IFF_UP))
+                br_stp_enable_port(p);
         spin_unlock_bh(&br->lock);
 
         dev_set_mtu(br->dev, br_min_mtu(br));