interface: do not update runtime data if input node is not set

Type: improvement
Change-Id: Id81d1ac23505a74d3bc6f5d7eddca2be20d39f45
Signed-off-by: Damjan Marion <damarion@cisco.com>

src/vnet/interface/runtime.c

@@ -72,6 +72,9 @@ vnet_hw_if_update_runtime_data (vnet_main_t *vnm, u32 hw_if_index)
   clib_bitmap_t *pending_int = 0;
   int last_int = -1;
 
+  if (node_index == 0)
+    return;
+
   log_debug ("update node '%U' triggered by interface %v",
 	     format_vlib_node_name, vm, node_index, hi->name);