diff options
Diffstat (limited to 'include/list.h')
| -rw-r--r-- | include/list.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/list.h b/include/list.h index 75d29212..857921e3 100644 --- a/include/list.h +++ b/include/list.h @@ -33,6 +33,17 @@ static inline void init_list_head(struct list_head *list) list->prev = list; } +/** + * list_is_first -- tests whether @list is the first entry in list @head + * @list: the entry to test + * @head: the head of the list + */ +static inline int list_is_first(const struct list_head *list, + const struct list_head *head) +{ + return list->prev == head; +} + /* * Insert a new entry between two known consecutive entries. * @@ -337,6 +348,13 @@ static inline void list_splice_tail_init(struct list_head *list, #define list_first_entry(ptr, type, member) \ list_entry((ptr)->next, type, member) +/** + * list_next_entry - get the next element in list + * @pos: the type * to cursor + * @member: the name of the list_head within the struct. + */ +#define list_next_entry(pos, member) \ + list_entry((pos)->member.next, typeof(*(pos)), member) /** * list_for_each_entry - iterate over list of given type |