kconfig: rename menu_get_parent_menu() to menu_get_menu_or_parent_menu()

The current menu_get_parent_menu() does not always return the parent
menu; if the given argument is itself a menu, it returns that menu.

Rename this function to better reflect this behavior.

Signed-off-by: Masahiro Yamada <[e-mail]>
Acked-by: Randy Dunlap <[e-mail]>
Tested-by: Randy Dunlap <[e-mail]>

scripts/kconfig/conf.c

···
 		default:
 			if (!conf_cnt++)
 				printf("*\n* Restart config...\n*\n");
-			rootEntry = menu_get_parent_menu(menu);
+			rootEntry = menu_get_menu_or_parent_menu(menu);
 			conf(rootEntry);
 			break;
 		}

scripts/kconfig/lkc.h

···
 bool menu_is_visible(struct menu *menu);
 bool menu_has_prompt(const struct menu *menu);
 const char *menu_get_prompt(const struct menu *menu);
-struct menu *menu_get_parent_menu(struct menu *menu);
+struct menu *menu_get_menu_or_parent_menu(struct menu *menu);
 int get_jump_key_char(void);
 struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head);
 void menu_get_ext_help(struct menu *menu, struct gstr *help);

scripts/kconfig/menu.c

···
 	return NULL;
 }
 
-struct menu *menu_get_parent_menu(struct menu *menu)
+/**
+ * menu_get_menu_or_parent_menu - return the parent menu or the menu itself
+ * @menu: pointer to the menu
+ * return: the parent menu. If the given argument is already a menu, return
+ *         itself.
+ */
+struct menu *menu_get_menu_or_parent_menu(struct menu *menu)
 {
 	enum prop_type type;
 

scripts/kconfig/qconf.cc

···
 	oldroot = rootEntry;
 	if (rootEntry == &rootmenu)
 		return;
-	setRootMenu(menu_get_parent_menu(rootEntry->parent));
+	setRootMenu(menu_get_menu_or_parent_menu(rootEntry->parent));
 
 	QTreeWidgetItemIterator it(this);
 	while (*it) {
···
 	switch (configList->mode) {
 	case singleMode:
 		list = configList;
-		parent = menu_get_parent_menu(menu);
+		parent = menu_get_menu_or_parent_menu(menu);
 		if (!parent)
 			return;
 		list->setRootMenu(parent);
···
 			configList->clearSelection();
 			list = configList;
 		} else {
-			parent = menu_get_parent_menu(menu->parent);
+			parent = menu_get_menu_or_parent_menu(menu->parent);
 			if (!parent)
 				return;