list: introduce list_last_entry_or_null()

index ef95941..3337249 100644
@@ -384,6 +384,17 @@ static inline void list_splice_tail_init(struct list_head *list,
 	(!list_empty(ptr) ? list_first_entry(ptr, type, member) : NULL)
 
 /**
+ * list_last_entry_or_null - 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 if the list is empty, it returns NULL.
+ */
+#define list_last_entry_or_null(ptr, type, member) \
+	(!list_empty(ptr) ? list_last_entry(ptr, type, member) : NULL)
+
+/**
  * list_next_entry - get the next element in list
  * @pos:	the type * to cursor
  * @member:	the name of the list_struct within the struct.