diff --git a/kernel/cgroup_freezer.c b/kernel/cgroup_freezer.c
index fc0646b..f86e939 100644
--- a/kernel/cgroup_freezer.c
+++ b/kernel/cgroup_freezer.c
@@ -128,8 +128,7 @@
  *    task->alloc_lock (inside __thaw_task(), prevents race with refrigerator())
  *     sighand->siglock
  */
-static struct cgroup_subsys_state *freezer_create(struct cgroup_subsys *ss,
-						  struct cgroup *cgroup)
+static struct cgroup_subsys_state *freezer_create(struct cgroup *cgroup)
 {
 	struct freezer *freezer;
 
@@ -142,8 +141,7 @@
 	return &freezer->css;
 }
 
-static void freezer_destroy(struct cgroup_subsys *ss,
-			    struct cgroup *cgroup)
+static void freezer_destroy(struct cgroup *cgroup)
 {
 	struct freezer *freezer = cgroup_freezer(cgroup);
 
@@ -164,8 +162,7 @@
  * a write to that file racing against an attach, and hence the
  * can_attach() result will remain valid until the attach completes.
  */
-static int freezer_can_attach(struct cgroup_subsys *ss,
-			      struct cgroup *new_cgroup,
+static int freezer_can_attach(struct cgroup *new_cgroup,
 			      struct cgroup_taskset *tset)
 {
 	struct freezer *freezer;
@@ -185,7 +182,7 @@
 	return 0;
 }
 
-static void freezer_fork(struct cgroup_subsys *ss, struct task_struct *task)
+static void freezer_fork(struct task_struct *task)
 {
 	struct freezer *freezer;