5 struct list_item *prev, *next;
13 #define container_of(_ptr, _type, _member) ({ \
14 const typeof( ((_type *)0)->_member ) *__mptr = (_ptr); \
15 (_type *)( (char *)__mptr - offsetof(_type,_member) );})
19 #define offsetof(_type, _member) ((size_t) &((_type *)0)->_member)
22 #define list_for_each(_list, _pos) \
23 for (_pos = (_list)->head.next; _pos != ((_list)->head); _pos = _pos->next)
25 #define list_entry(_ptr, _type, _member, _list) \
26 (&container_of(_ptr, _type, _member)->_member == &((_list)->head) \
28 : container_of(_ptr, _type, _member))
30 #define list_prev_entry(_list, _pos, _member) \
31 list_entry(_pos->_member.prev, typeof(*_pos), _member, _list)
33 #define list_next_entry(_list, _pos, _member) \
34 list_entry(_pos->_member.next, typeof(*_pos), _member, _list)
36 #define list_for_each_entry(_list, _pos, _member) \
37 for (_pos = list_entry((_list)->head.next, typeof(*_pos), _member, _list); \
38 _pos; _pos = list_next_entry(_list, _pos, _member))
40 #define list_for_each_entry_continue(_list, _pos, _member) \
41 for (; _pos; _pos = list_next_entry(_list, _pos, _member))
43 #define list_for_each_entry_safe(_list, _pos, _tmp, _member) \
44 for (_pos = container_of((_list)->head.next, typeof(*_pos), _member), \
45 _tmp = container_of(_pos->_member.next, typeof(*_pos), \
47 &_pos->_member != &(_list)->head; \
49 _tmp = container_of(_tmp->_member.next, typeof(*_pos), _member))
51 #define DEFINE_LIST(_list) struct list _list = { \
53 .next = &_list.head, \
58 #define STATIC_LIST(_list) static DEFINE_LIST(_list)
60 void list_init(struct list *list);
61 void list_insert_before(struct list_item *next, struct list_item *item);
62 void list_insert_after(struct list_item *prev, struct list_item *item);
63 void list_remove(struct list_item *item);
65 static inline void list_add(struct list *list, struct list_item *item)
67 list_insert_after(&list->head, item);
69 static inline void list_add_tail(struct list *list, struct list_item *item)
71 list_insert_before(&list->head, item);