diff options
| author | Simon Glass <sjg@chromium.org> | 2016-10-05 20:42:12 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2016-10-11 11:55:33 +0800 |
| commit | 5023bd7a804e09d0bf4937d8fecb5d85af6dba3c (patch) | |
| tree | 4529a8c3d0d97c9348918f303fdefc841688e6e2 /include/linux | |
| parent | b91c6a1209e7da1a7f989d9ac35d0d8be0b7b710 (diff) | |
list: Add list_last_entry() to find the last entry
We have list_first_entry() but in some cases it is useful to find the last
item added to the list. Add a macro for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/list.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/list.h b/include/linux/list.h index b78851c3d7..5b8d1df5df 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -338,6 +338,17 @@ static inline void list_splice_tail_init(struct list_head *list, list_entry((ptr)->next, type, member) /** + * list_last_entry - get the last element from a list + * @ptr: the list head to take the element from. + * @type: the type of the struct this is embedded in. + * @member: the name of the list_struct within the struct. + * + * Note, that list is expected to be not empty. + */ +#define list_last_entry(ptr, type, member) \ + list_entry((ptr)->prev, type, member) + +/** * list_for_each - iterate over a list * @pos: the &struct list_head to use as a loop cursor. * @head: the head for your list. |