vppinfra: change vlib_register_node so it takes format string for node name

This allows specifying both c string and vector for node name
and removes need for crafting temporary string.

Type: improvement
Change-Id: I0b016cd70aeda0f68eb6f9171c5152f303be7369
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 5 insertions, 13 deletions

diff --git a/src/vnet/interface.c b/src/vnet/interface.c
index 412c6755ea8..c44f2647ddf 100644
--- a/src/vnet/interface.c
+++ b/src/vnet/interface.c
@@ -874,7 +874,6 @@ vnet_register_interface (vnet_main_t * vnm,
   vnet_feature_config_main_t *fcm;
   vnet_config_main_t *cm;
   u32 hw_index, i;
-  char *tx_node_name = NULL, *output_node_name = NULL;
   vlib_node_t *if_out_node =
     vlib_get_node (vm, vnet_interface_output_node.index);
 
@@ -926,9 +925,6 @@ vnet_register_interface (vnet_main_t * vnm,
   if (dev_class->tx_function == 0 && dev_class->tx_fn_registrations == 0)
     goto no_output_nodes;	/* No output/tx nodes to create */
 
-  tx_node_name = (char *) format (0, "%v-tx", hw->name);
-  output_node_name = (char *) format (0, "%v-output", hw->name);
-
   /* If we have previously deleted interface nodes, re-use them. */
   if (vec_len (im->deleted_hw_interface_nodes) > 0)
     {
@@ -941,8 +937,8 @@ vnet_register_interface (vnet_main_t * vnm,
       hw->tx_node_index = hn->tx_node_index;
       hw->output_node_index = hn->output_node_index;
 
-      vlib_node_rename (vm, hw->tx_node_index, "%v", tx_node_name);
-      vlib_node_rename (vm, hw->output_node_index, "%v", output_node_name);
+      vlib_node_rename (vm, hw->tx_node_index, "%v-tx", hw->name);
+      vlib_node_rename (vm, hw->output_node_index, "%v-output", hw->name);
 
       foreach_vlib_main ()
 	{
@@ -1016,7 +1012,6 @@ vnet_register_interface (vnet_main_t * vnm,
       r.vector_size = sizeof (u32);
 
       r.flags = VLIB_NODE_FLAG_IS_OUTPUT;
-      r.name = tx_node_name;
       if (dev_class->tx_fn_registrations)
 	{
 	  r.function = 0;
@@ -1025,14 +1020,13 @@ vnet_register_interface (vnet_main_t * vnm,
       else
 	r.function = dev_class->tx_function;
 
-      hw->tx_node_index = vlib_register_node (vm, &r);
+      hw->tx_node_index = vlib_register_node (vm, &r, "%v-tx", hw->name);
 
       vlib_node_add_named_next_with_slot (vm, hw->tx_node_index,
 					  "error-drop",
 					  VNET_INTERFACE_TX_NEXT_DROP);
 
       r.flags = 0;
-      r.name = output_node_name;
       r.format_trace = format_vnet_interface_output_trace;
       if (if_out_node->node_fn_registrations)
 	{
@@ -1052,7 +1046,8 @@ vnet_register_interface (vnet_main_t * vnm,
 	r.n_errors = ARRAY_LEN (e);
 	r.error_strings = e;
       }
-      hw->output_node_index = vlib_register_node (vm, &r);
+      hw->output_node_index =
+	vlib_register_node (vm, &r, "%v-output", hw->name);
 
       vlib_node_add_named_next_with_slot (vm, hw->output_node_index,
 					  "error-drop",
@@ -1095,9 +1090,6 @@ no_output_nodes:
 				      VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
   vnet_hw_interface_set_flags_helper (vnm, hw_index, /* flags */ 0,
 				      VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
-  vec_free (tx_node_name);
-  vec_free (output_node_name);
-
   return hw_index;
 }