diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index c08585ad996be4..2b4c20ab5bbe17 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -2085,7 +2085,7 @@ static void cpuset_bind(struct cgroup_subsys_state *root_css)
  * which could have been changed by cpuset just after it inherits the
  * state from the parent and before it sits on the cgroup's task list.
  */
-void cpuset_fork(struct task_struct *task)
+static void cpuset_fork(struct task_struct *task)
 {
 	if (task_css_is_root(task, cpuset_cgrp_id))
 		return;