/* SPDX-License-Identifier: GPL-2.0 */struct list {	struct list *next, *prev;}; static inline voidlist_init(struct list *list){	list->next = list;	list->prev = list;} static inline intlist_empty(struct list *list){	return list->next == list;} static inline voidlist_insert(struct list *link, struct list *new_link){	new_link->prev		= link->prev;	new_link->next		= link;	new_link->prev->next	= new_link;	new_link->next->prev	= new_link;} static inline voidlist_append(struct list *list, struct list *new_link){	list_insert((struct list *)list, new_link);} static inline voidlist_prepend(struct list *list, struct list *new_link){	list_insert(list->next, new_link);} static inline voidlist_remove(struct list *link){	link->prev->next = link->next;	link->next->prev = link->prev;} #define list_entry(link, type, member) \	((type *)((char *)(link)-(unsigned long)(&((type *)0)->member))) #define list_head(list, type, member)		\	list_entry((list)->next, type, member) #define list_tail(list, type, member)		\	list_entry((list)->prev, type, member) #define list_next(elm, member)					\	list_entry((elm)->member.next, typeof(*elm), member) #define list_for_each_entry(pos, list, member)			\	for (pos = list_head(list, typeof(*pos), member);	\	     &pos->member != (list);				\	     pos = list_next(pos, member))