From c809b3b641b34125aa6345b0849c7a491bd18c96 Mon Sep 17 00:00:00 2001 From: Sughosh Ganu Date: Tue, 30 Jul 2024 16:41:28 +0530 Subject: [PATCH] linux: list: add a function to count list nodes Add a function to count the nodes of a list. Taken from linux 6.11-rc1 tag commit 8400291e289e. Signed-off-by: Sughosh Ganu Reviewed-by: Simon Glass Reviewed-by: Heinrich Schuchardt Reviewed-by: Ilias Apalodimas --- include/linux/list.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/include/linux/list.h b/include/linux/list.h index 6910721c00..0f9d939b05 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -547,6 +547,21 @@ static inline void list_splice_tail_init(struct list_head *list, &pos->member != (head); \ pos = n, n = list_entry(n->member.prev, typeof(*n), member)) +/** + * list_count_nodes - count nodes in the list + * @head: the head for your list. + */ +static inline size_t list_count_nodes(struct list_head *head) +{ + struct list_head *pos; + size_t count = 0; + + list_for_each(pos, head) + count++; + + return count; +} + /* * Double linked lists with a single pointer list head. * Mostly useful for hash tables where the two pointer list head is -- 2.39.5