1 files changed, 0 insertions, 1 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index d35d2b6ddbfb..aefe45d79f53 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -320,7 +320,6 @@ extern signed long schedule_timeout_killable(signed long timeout);
 extern signed long schedule_timeout_uninterruptible(signed long timeout);
 asmlinkage void schedule(void);
 extern void schedule_preempt_disabled(void);
-extern int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner);
 
 struct nsproxy;
 struct user_namespace;