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#ifndef _LIST_H
#define _LIST_H
struct list_item {
struct list_item *prev, *next;
};
struct list {
struct list_item head;
};
#ifndef container_of
#define container_of(ptr, type, member) ({ \
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
#endif
#ifndef offsetof
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
#endif
#define list_for_each(list, pos) \
for (pos = (list)->head.next; pos != ((list)->head); pos = pos->next)
#define list_entry(ptr, type, member) \
container_of(ptr, type, member)
#define list_for_each_entry(list, pos, member) \
for (pos = list_entry((list)->head.next, typeof(*pos), member); \
&pos->member != &(list)->head; \
pos = list_entry(pos->member.next, typeof(*pos), member))
void list_init(struct list *list);
void list_add(struct list *list, struct list_item *item);
void list_remove(struct list_item *item);
#endif /* _LIST_H */
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