+/* remove repeated entry from the info list */
+static void cleanup_infolist(CommandLineParameterInfoList *head)
+{
+ CommandLineParameterInfoList *pre_entry, *cur, *del_entry;
+
+ cur = head;
+ while (cur->next) {
+ pre_entry = head;
+ while (pre_entry != cur->next) {
+ if (!strcmp(pre_entry->value->name, cur->next->value->name)) {
+ del_entry = cur->next;
+ cur->next = cur->next->next;
+ g_free(del_entry);
+ break;
+ }
+ pre_entry = pre_entry->next;
+ }
+ cur = cur->next;
+ }
+}
+
+/* merge the description items of two parameter infolists */
+static void connect_infolist(CommandLineParameterInfoList *head,
+ CommandLineParameterInfoList *new)
+{
+ CommandLineParameterInfoList *cur;
+
+ cur = head;
+ while (cur->next) {
+ cur = cur->next;
+ }
+ cur->next = new;
+}
+
+/* access all the local QemuOptsLists for drive option */
+static CommandLineParameterInfoList *get_drive_infolist(void)
+{
+ CommandLineParameterInfoList *head = NULL, *cur;
+ int i;
+
+ for (i = 0; drive_config_groups[i] != NULL; i++) {
+ if (!head) {
+ head = query_option_descs(drive_config_groups[i]->desc);
+ } else {
+ cur = query_option_descs(drive_config_groups[i]->desc);
+ connect_infolist(head, cur);
+ }
+ }
+ cleanup_infolist(head);
+
+ return head;
+}
+