9 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)  argument
12  * container_of - cast a member of a structure out to the containing structure
13  * @ptr:        the pointer to the member.
15  * @member:     the name of the member within the struct.
18 #define container_of(ptr, type, member) ({                      \  argument
19 	const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
20 	(type *)( (char *)__mptr - offsetof(type,member) );})
37  * @member:	the name of the list_head within the struct.
39 #define list_entry(ptr, type, member) \  argument
40 	container_of(ptr, type, member)
46  * @member:	the name of the list_head within the struct.
48 #define list_for_each_entry(pos, head, member)				\  argument
49 	for (pos = list_entry((head)->next, typeof(*pos), member);	\
50 	     &pos->member != (head); 	\
51 	     pos = list_entry(pos->member.next, typeof(*pos), member))
58  * @member:	the name of the list_head within the struct.
60 #define list_for_each_entry_safe(pos, n, head, member)			\  argument
61 	for (pos = list_entry((head)->next, typeof(*pos), member),	\
62 		n = list_entry(pos->member.next, typeof(*pos), member);	\
63 	     &pos->member != (head);					\
64 	     pos = n, n = list_entry(n->member.next, typeof(*n), member))