[PATCH 1/3] cpuidle : remove unused ref count function

[Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>]

These two functions are never used.

Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
---
 drivers/cpuidle/driver.c |   29 +----------------------------
 include/linux/cpuidle.h  |    4 ----
 2 files changed, 1 insertions(+), 32 deletions(-)

diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index 58bf3b1..40cd3f3 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -16,7 +16,6 @@
 
 static struct cpuidle_driver *cpuidle_curr_driver;
 DEFINE_SPINLOCK(cpuidle_driver_lock);
-int cpuidle_driver_refcount;
 
 static void __cpuidle_register_driver(struct cpuidle_driver *drv)
 {
@@ -90,34 +89,8 @@ void cpuidle_unregister_driver(struct cpuidle_driver *drv)
 	}
 
 	spin_lock(&cpuidle_driver_lock);
-
-	if (!WARN_ON(cpuidle_driver_refcount > 0))
-		cpuidle_curr_driver = NULL;
-
+	cpuidle_curr_driver = NULL;
 	spin_unlock(&cpuidle_driver_lock);
 }
 
 EXPORT_SYMBOL_GPL(cpuidle_unregister_driver);
-
-struct cpuidle_driver *cpuidle_driver_ref(void)
-{
-	struct cpuidle_driver *drv;
-
-	spin_lock(&cpuidle_driver_lock);
-
-	drv = cpuidle_curr_driver;
-	cpuidle_driver_refcount++;
-
-	spin_unlock(&cpuidle_driver_lock);
-	return drv;
-}
-
-void cpuidle_driver_unref(void)
-{
-	spin_lock(&cpuidle_driver_lock);
-
-	if (!WARN_ON(cpuidle_driver_refcount <= 0))
-		cpuidle_driver_refcount--;
-
-	spin_unlock(&cpuidle_driver_lock);
-}
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 279b1ea..5abf62b 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -145,8 +145,6 @@ extern void disable_cpuidle(void);
 extern int cpuidle_idle_call(void);
 extern int cpuidle_register_driver(struct cpuidle_driver *drv);
 extern struct cpuidle_driver *cpuidle_get_driver(void);
-extern struct cpuidle_driver *cpuidle_driver_ref(void);
-extern void cpuidle_driver_unref(void);
 extern void cpuidle_unregister_driver(struct cpuidle_driver *drv);
 extern int cpuidle_register_device(struct cpuidle_device *dev);
 extern void cpuidle_unregister_device(struct cpuidle_device *dev);
@@ -169,8 +167,6 @@ static inline int cpuidle_idle_call(void) { return -ENODEV; }
 static inline int cpuidle_register_driver(struct cpuidle_driver *drv)
 {return -ENODEV; }
 static inline struct cpuidle_driver *cpuidle_get_driver(void) {return NULL; }
-static inline struct cpuidle_driver *cpuidle_driver_ref(void) {return NULL; }
-static inline void cpuidle_driver_unref(void) {}
 static inline void cpuidle_unregister_driver(struct cpuidle_driver *drv) { }
 static inline int cpuidle_register_device(struct cpuidle_device *dev)
 {return -ENODEV; }
-- 
1.7.5.4

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