rocker: add missing init_net check in FIB notifier

Take only FIB events that are happening in init_net into account. No other
namespaces are supported.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/rocker/rocker_main.c

@@ -2189,6 +2189,9 @@ static int rocker_router_fib_event(struct notifier_block *nb,
 	struct rocker_fib_event_work *fib_work;
 	struct fib_notifier_info *info = ptr;
 
+	if (!net_eq(info->net, &init_net))
+		return NOTIFY_DONE;
+
 	if (info->family != AF_INET)
 		return NOTIFY_DONE;