From 28cb5ef16e578bbca0a562b09f12c8c98ca92720 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 23 Jul 2014 01:00:36 +0200 Subject: [PATCH] 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 --- include/linux/pm_runtime.h | 11 +++++++++-- kernel/power/main.c | 4 ---- 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index 43fd6716f662..367f49b9a1c9 100644 --- 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 8e90f330f139..a18efed75fa7 100644 --- 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) { -- 2.20.1