PM / sleep: Make suspend-to-idle-specific code depend on CONFIG_SUSPEND
Since idle_should_freeze() is defined to always return 'false'
for CONFIG_SUSPEND unset, all of the code depending on it in
cpuidle_idle_call() is not necessary in that case.
Make that code depend on CONFIG_SUSPEND too to avoid building it
when it is not going to be used.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 9c5e892..13ee266 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -151,10 +151,6 @@
extern int cpuidle_enable_device(struct cpuidle_device *dev);
extern void cpuidle_disable_device(struct cpuidle_device *dev);
extern int cpuidle_play_dead(void);
-extern int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
- struct cpuidle_device *dev);
-extern int cpuidle_enter_freeze(struct cpuidle_driver *drv,
- struct cpuidle_device *dev);
extern struct cpuidle_driver *cpuidle_get_cpu_driver(struct cpuidle_device *dev);
#else
@@ -190,14 +186,22 @@
{return -ENODEV; }
static inline void cpuidle_disable_device(struct cpuidle_device *dev) { }
static inline int cpuidle_play_dead(void) {return -ENODEV; }
+static inline struct cpuidle_driver *cpuidle_get_cpu_driver(
+ struct cpuidle_device *dev) {return NULL; }
+#endif
+
+#if defined(CONFIG_CPU_IDLE) && defined(CONFIG_SUSPEND)
+extern int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
+ struct cpuidle_device *dev);
+extern int cpuidle_enter_freeze(struct cpuidle_driver *drv,
+ struct cpuidle_device *dev);
+#else
static inline int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
struct cpuidle_device *dev)
{return -ENODEV; }
static inline int cpuidle_enter_freeze(struct cpuidle_driver *drv,
struct cpuidle_device *dev)
{return -ENODEV; }
-static inline struct cpuidle_driver *cpuidle_get_cpu_driver(
- struct cpuidle_device *dev) {return NULL; }
#endif
#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED