Add list_is_first() to check whether @list is the first entry in list @head
Signed-off-by: Swapnil Sapkal <swapnil.sapkal@xxxxxxx>
---
tools/include/linux/list.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/tools/include/linux/list.h b/tools/include/linux/list.h
index a4dfb6a7cc6a..a692ff7aed5c 100644
--- a/tools/include/linux/list.h
+++ b/tools/include/linux/list.h
@@ -169,6 +169,16 @@ static inline void list_move_tail(struct list_head *list,
list_add_tail(list, head);
}
+/**
+ * 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;
+}
+
/**
* list_is_last - tests whether @list is the last entry in list @head
* @list: the entry to test
--
2.43.0
