--- zzzz-none-000/linux-4.1.38/net/bridge/br_ioctl.c	2017-01-18 18:48:06.000000000 +0000
+++ bcm63-7582-715/linux-4.1.38/net/bridge/br_ioctl.c	2020-11-25 10:06:48.000000000 +0000
@@ -102,6 +102,11 @@
 	else
 		ret = br_del_if(br, dev);
 
+#if defined(CONFIG_BCM_KF_BRIDGE_PORT_ISOLATION)
+	rcu_read_lock();
+	br_dev_notify_if_change(&br->dev->name[0]);
+	rcu_read_unlock();
+#endif
 	return ret;
 }
 
@@ -343,6 +348,7 @@
 
 		return br_del_bridge(net, buf);
 	}
+
 	}
 
 	return -EOPNOTSUPP;