2003-08-18 21:29:48

by Perez-Gonzalez, Inaky

[permalink] [raw]
Subject: [2.{4,5} TRIVIAL PATCH] Change list_emtpy() to take a const pointer


Hi Rusty, list

Didn't know what was the best place to submit this one, I
guessed trivial.

Just change the definition of list_empty() to take a const
pointer. I have some upper layers of code that do all the
const/non-const thing and list_empty() breaks it without
this.

--- linux/include/linux/list.h
+++ linux/include/linux/list.h
@@ -203,7 +203,7 @@
* list_empty - tests whether a list is empty
* @head: the list to test.
*/
-static inline int list_empty(struct list_head *head)
+static inline int list_empty(const struct list_head *head)
{
return head->next == head;
}