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authorDavid Rientjes <rientjes@google.com>2012-11-10 22:48:33 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2012-11-15 00:15:19 +0100
commit99926a8cd36b6088448fec41aed4a3b5b05b3679 (patch)
tree465af9d65753fa9fdf75c37522d51958c57acec4 /include/acpi
parente5cc8ef31267317f3e177415c84e3f3602e5bfc9 (diff)
ACPI / PM: Fix build problem related to acpi_target_system_state()
Commit b87b49cd0efd ("ACPI / PM: Move device PM functions related to sleep states") declared acpi_target_system_state() for CONFIG_PM_SLEEP whereas it is only defined for CONFIG_ACPI_SLEEP, resulting in the following link error: drivers/built-in.o: In function `acpi_pm_device_sleep_wake': drivers/acpi/device_pm.c:342: undefined reference to `acpi_target_system_state' drivers/built-in.o: In function `acpi_dev_suspend_late': drivers/acpi/device_pm.c:501: undefined reference to `acpi_target_system_state' drivers/built-in.o: In function `acpi_pm_device_sleep_state': drivers/acpi/device_pm.c:221: undefined reference to `acpi_target_system_state' Define it only for CONFIG_ACPI_SLEEP and fallback to a dummy definition for other configs. [rjw: The problem only occurs for exotic .configs in which HIBERNATE_CALLBACKS is selected by XEN_SAVE_RESTORE and neither SUSPEND nor HIBERNATION is set.] Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/acpi_bus.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index bf8709a1844d..80155fda517f 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -470,11 +470,9 @@ static inline int acpi_pm_device_run_wake(struct device *dev, bool enable)
#endif
#ifdef CONFIG_PM_SLEEP
-u32 acpi_target_system_state(void);
int __acpi_device_sleep_wake(struct acpi_device *, u32, bool);
int acpi_pm_device_sleep_wake(struct device *, bool);
#else
-static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; }
static inline int __acpi_device_sleep_wake(struct acpi_device *adev,
u32 target_state, bool enable)
{
@@ -486,6 +484,12 @@ static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
}
#endif
+#ifdef CONFIG_ACPI_SLEEP
+u32 acpi_target_system_state(void);
+#else
+static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; }
+#endif
+
static inline bool acpi_device_power_manageable(struct acpi_device *adev)
{
return adev->flags.power_manageable;