--- zzzz-none-000/linux-4.9.279/net/bridge/br.c	2021-08-08 06:38:54.000000000 +0000
+++ puma7-arm-6591-750/linux-4.9.279/net/bridge/br.c	2023-02-08 10:58:16.000000000 +0000
@@ -11,6 +11,11 @@
  *	2 of the License, or (at your option) any later version.
  */
 
+/*
+ * Includes Intel Corporation's changes/modifications dated: 2017.
+ * Changed/modified portions - Copyright (c) 2017, Intel Corporation.
+ */
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
@@ -23,6 +28,10 @@
 
 #include "br_private.h"
 
+#ifdef CONFIG_TI_UNMANAGED_BRIDGE
+extern int ti_unmanaged_bridge_handler (struct net_device *dev, unsigned long event);
+#endif /* CONFIG_TI_UNMANAGED_BRIDGE */
+
 /*
  * Handle changes in state of network devices enslaved to a bridge.
  *
@@ -37,6 +46,15 @@
 	bool changed_addr;
 	int err;
 
+#ifdef CONFIG_TI_UNMANAGED_BRIDGE
+    /* Pass control to the unmanaged bridge handler. */
+    if (ti_unmanaged_bridge_handler(dev, event) == 0)
+    {
+        /* The event has been handled by the unmanaged bridge handler. */  
+        return NOTIFY_DONE;
+    }
+#endif /* CONFIG_TI_UNMANAGED_BRIDGE */
+
 	/* register of bridge completed, add sysfs entries */
 	if ((dev->priv_flags & IFF_EBRIDGE) && event == NETDEV_REGISTER) {
 		br_sysfs_addbr(dev);