448                                struct list_head *a, struct list_head *b)  in merge()  argument
454         if (cmp(priv, a, b) <= 0) {  in merge()
455             *tail = a;  in merge()
456             tail = &a->next;  in merge()
457             a = a->next;  in merge()
458             if (!a) {  in merge()
467                 *tail = a;  in merge()
483                         struct list_head *a, struct list_head *b)  in merge_final()  argument
490         if (cmp(priv, a, b) <= 0) {  in merge_final()
491             tail->next = a;  in merge_final()
492             a->prev = tail;  in merge_final()
493             tail = a;  in merge_final()
494             a = a->next;  in merge_final()
495             if (!a)  in merge_final()
503                 b = a;  in merge_final()
569             struct list_head *a = *tail, *b = a->prev;  in list_sort()  local
571             a = merge(priv, cmp, b, a);  in list_sort()
573             a->prev = b->prev;  in list_sort()
574             *tail = a;  in list_sort()