16 	struct dl_list *next;  member
24 	list->next = list;  in dl_list_init()
30 	item->next = list->next;  in dl_list_add()
32 	list->next->prev = item;  in dl_list_add()
33 	list->next = item;  in dl_list_add()
43 	item->next->prev = item->prev;  in dl_list_del()
44 	item->prev->next = item->next;  in dl_list_del()
45 	item->next = NULL;  in dl_list_del()
51 	return list->next == list;  in dl_list_empty()
58 	for (item = list->next; item != list; item = item->next)  in dl_list_len()
72 	 dl_list_entry((list)->next, type, member))
79 	for (item = dl_list_entry((list)->next, type, member); \
81 	     item = dl_list_entry(item->member.next, type, member))
84 	for (item = dl_list_entry((list)->next, type, member), \
85 		     n = dl_list_entry(item->member.next, type, member); \
87 	     item = n, n = dl_list_entry(n->member.next, type, member))