PM: Create PM workqueue if runtime PM is not configured too

The PM workqueue is going to be used by ACPI PM notify handlers
regardless of whether or not runtime PM is configured, so move
it out of #ifdef CONFIG_PM_RUNTIME.

Do that in three places in the ACPI device PM code.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 43fd6716f66207bc824b94f1fdbfb44bc37d3534..367f49b9a1c93e5f48ede4b0b97d09ce4f73ce3e 100644 (file)
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -24,11 +24,20 @@
 #define RPM_AUTO               0x08    /* Use autosuspend_delay */
 
 #ifdef CONFIG_PM
+extern struct workqueue_struct *pm_wq;
+
+static inline bool queue_pm_work(struct work_struct *work)
+{
+       return queue_work(pm_wq, work);
+}
+
 extern int pm_generic_runtime_suspend(struct device *dev);
 extern int pm_generic_runtime_resume(struct device *dev);
 extern int pm_runtime_force_suspend(struct device *dev);
 extern int pm_runtime_force_resume(struct device *dev);
 #else
+static inline bool queue_pm_work(struct work_struct *work) { return false; }
+
 static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; }
 static inline int pm_generic_runtime_resume(struct device *dev) { return 0; }
 static inline int pm_runtime_force_suspend(struct device *dev) { return 0; }
@@ -37,8 +46,6 @@ static inline int pm_runtime_force_resume(struct device *dev) { return 0; }
 
 #ifdef CONFIG_PM_RUNTIME
 
-extern struct workqueue_struct *pm_wq;
-
 extern int __pm_runtime_idle(struct device *dev, int rpmflags);
 extern int __pm_runtime_suspend(struct device *dev, int rpmflags);
 extern int __pm_runtime_resume(struct device *dev, int rpmflags);

diff --git a/kernel/power/main.c b/kernel/power/main.c
index 8e90f330f1398277d1b41b0e94c99e71759e2665..a18efed75fa7ea75083f523132ad0c5ab338d1e6 100644 (file)
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -615,7 +615,6 @@ static struct attribute_group attr_group = {
        .attrs = g,
 };
 
-#ifdef CONFIG_PM_RUNTIME
 struct workqueue_struct *pm_wq;
 EXPORT_SYMBOL_GPL(pm_wq);
 
@@ -625,9 +624,6 @@ static int __init pm_start_workqueue(void)
 
        return pm_wq ? 0 : -ENOMEM;
 }
-#else
-static inline int pm_start_workqueue(void) { return 0; }
-#endif
 
 static int __init pm_init(void)
 {