PM: Drop pm_flags that is not necessary

The variable pm_flags is used to prevent APM from being enabled
along with ACPI, which would lead to problems.  However, acpi_init()
is always called before apm_init() and after acpi_init() has
returned, it is known whether or not ACPI will be used.  Namely, if
acpi_disabled is not set after acpi_init() has returned, this means
that ACPI is enabled.  Thus, it is sufficient to check acpi_disabled
in apm_init() to prevent APM from being enabled in parallel with
ACPI.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Len Brown <len.brown@intel.com>

2 files changed, 0 insertions, 15 deletions

diff --git a/include/linux/pm.h b/include/linux/pm.h
index 9279175a4557..1f79c98f1e56 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -565,15 +565,6 @@ enum dpm_order {
         DPM_ORDER_DEV_LAST,
 };
 
-/*
- * Global Power Management flags
- * Used to keep APM and ACPI from both being active
- */
-extern unsigned int     pm_flags;
-
-#define PM_APM  1
-#define PM_ACPI 2
-
 extern int pm_generic_suspend(struct device *dev);
 extern int pm_generic_resume(struct device *dev);
 extern int pm_generic_freeze(struct device *dev);
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 5e364db8a56a..5a89e3612875 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -272,9 +272,6 @@ extern int unregister_pm_notifier(struct notifier_block *nb);
         register_pm_notifier(&fn##_nb);                 \
 }
 
-extern bool pm_apm_enabled(void);
-extern void pm_set_acpi_flag(void);
-
 /* drivers/base/power/wakeup.c */
 extern bool events_check_enabled;
 
@@ -295,9 +292,6 @@ static inline int unregister_pm_notifier(struct notifier_block *nb)
 
 #define pm_notifier(fn, pri)    do { (void)(fn); } while (0)
 
-static inline bool pm_apm_enabled(void) { return false; }
-static inline void pm_set_acpi_flag(void) {}
-
 static inline bool pm_wakeup_pending(void) { return false; }
 #endif /* !CONFIG_PM_SLEEP */