Remove "do_nothing"

The do_nothing function in mi-main.c is used as a splay tree
key-deleting function; but NULL serves the same purpose and is used
elsewhere in gdb.  This patch removes the unneeded function.

ChangeLog
2017-10-09  Tom Tromey  <tom@tromey.com>

	* mi/mi-main.c (do_nothing): Remove.
	(list_available_thread_groups): Update.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index f1fd73c..ce21e25 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2017-10-09  Tom Tromey  <tom@tromey.com>
+
+       * mi/mi-main.c (do_nothing): Remove.
+       (list_available_thread_groups): Update.
+
 2017-10-09  Pedro Alves  <palves@redhat.com>
 
        * infrun.c (handle_inferior_event_1) <TARGET_WAITKIND_EXECD>: Skip

diff --git a/gdb/mi/mi-main.c b/gdb/mi/mi-main.c
index 289445f..98fff4f 100644 (file)
--- a/gdb/mi/mi-main.c
+++ b/gdb/mi/mi-main.c
@@ -702,11 +702,6 @@ output_cores (struct ui_out *uiout, const char *field_name, const char *xcores)
 }
 
 static void
-do_nothing (splay_tree_key k)
-{
-}
-
-static void
 free_vector_of_osdata_items (splay_tree_value xvalue)
 {
   VEC (osdata_item_s) *value = (VEC (osdata_item_s) *) xvalue;
@@ -756,7 +751,7 @@ list_available_thread_groups (const std::set<int> &ids, int recurse)
 
       make_cleanup_osdata_free (threads);
       tree = splay_tree_new (splay_tree_int_comparator,
-                            do_nothing,
+                            NULL,
                             free_vector_of_osdata_items);
       make_cleanup (free_splay_tree, tree);