[1/5] ACPI / PM: Move references to pm_flags into sleep.c

Commit Message

Rafael Wysocki Feb. 9, 2011, 12:37 a.m. UTC

None

Patch

Index: linux-2.6/drivers/acpi/bus.c
===================================================================
--- linux-2.6.orig/drivers/acpi/bus.c
+++ linux-2.6/drivers/acpi/bus.c
@@ -40,6 +40,7 @@ 
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 #include <linux/dmi.h>
+#include <linux/suspend.h>
 
 #include "internal.h"
 
@@ -1025,13 +1026,13 @@  static int __init acpi_init(void)
 
 	if (!result) {
 		pci_mmcfg_late_init();
-		if (!(pm_flags & PM_APM))
-			pm_flags |= PM_ACPI;
-		else {
+		if (pm_apm_enabled()) {
 			printk(KERN_INFO PREFIX
 			       "APM is already active, exiting\n");
 			disable_acpi();
 			result = -ENODEV;
+		} else {
+			pm_set_acpi_flag();
 		}
 	} else
 		disable_acpi();
Index: linux-2.6/drivers/acpi/Kconfig
===================================================================
--- linux-2.6.orig/drivers/acpi/Kconfig
+++ linux-2.6/drivers/acpi/Kconfig
@@ -7,7 +7,6 @@  menuconfig ACPI
 	depends on !IA64_HP_SIM
 	depends on IA64 || X86
 	depends on PCI
-	depends on PM
 	select PNP
 	default y
 	help
Index: linux-2.6/include/linux/suspend.h
===================================================================
--- linux-2.6.orig/include/linux/suspend.h
+++ linux-2.6/include/linux/suspend.h
@@ -272,6 +272,9 @@  extern int unregister_pm_notifier(struct
 	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;
 
@@ -292,6 +295,9 @@  static inline int unregister_pm_notifier
 
 #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 */
 
Index: linux-2.6/kernel/power/main.c
===================================================================
--- linux-2.6.orig/kernel/power/main.c
+++ linux-2.6/kernel/power/main.c
@@ -17,10 +17,20 @@ 
 
 DEFINE_MUTEX(pm_mutex);
 
+#ifdef CONFIG_PM_SLEEP
+
 unsigned int pm_flags;
 EXPORT_SYMBOL(pm_flags);
 
-#ifdef CONFIG_PM_SLEEP
+bool pm_apm_enabled(void)
+{
+	return !!(pm_flags & PM_APM);
+}
+
+void pm_set_acpi_flag(void)
+{
+	pm_flags |= PM_ACPI;
+}
 
 /* Routines for PM-transition notifications */