[PATCH 4.9 10/43] rtmutex: Remove unused argument from rt_mutex_proxy_unlock()

[Greg Kroah-Hartman]

From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

[ Upstream commit 2156ac1934166d6deb6cd0f6ffc4c1076ec63697 ]
Nothing uses the argument. Remove it as preparation to use
pi_state_update_owner().

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 kernel/futex.c                  |    2 +-
 kernel/locking/rtmutex.c        |    3 +--
 kernel/locking/rtmutex_common.h |    3 +--
 3 files changed, 3 insertions(+), 5 deletions(-)

--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -883,7 +883,7 @@ static void put_pi_state(struct futex_pi
 		list_del_init(&pi_state->list);
 		raw_spin_unlock_irq(&pi_state->owner->pi_lock);
 
-		rt_mutex_proxy_unlock(&pi_state->pi_mutex, pi_state->owner);
+		rt_mutex_proxy_unlock(&pi_state->pi_mutex);
 	}
 
 	if (current->pi_state_cache)
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1696,8 +1696,7 @@ void rt_mutex_init_proxy_locked(struct r
  * No locking. Caller has to do serializing itself
  * Special API call for PI-futex support
  */
-void rt_mutex_proxy_unlock(struct rt_mutex *lock,
-			   struct task_struct *proxy_owner)
+void rt_mutex_proxy_unlock(struct rt_mutex *lock)
 {
 	debug_rt_mutex_proxy_unlock(lock);
 	rt_mutex_set_owner(lock, NULL);
--- a/kernel/locking/rtmutex_common.h
+++ b/kernel/locking/rtmutex_common.h
@@ -102,8 +102,7 @@ enum rtmutex_chainwalk {
 extern struct task_struct *rt_mutex_next_owner(struct rt_mutex *lock);
 extern void rt_mutex_init_proxy_locked(struct rt_mutex *lock,
 				       struct task_struct *proxy_owner);
-extern void rt_mutex_proxy_unlock(struct rt_mutex *lock,
-				  struct task_struct *proxy_owner);
+extern void rt_mutex_proxy_unlock(struct rt_mutex *lock);
 extern int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
 				     struct rt_mutex_waiter *waiter,
 				     struct task_struct *task);