/*--------------------------------------------------------------------------
Suspend/Resume
-------------------------------------------------------------------------- */
+#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
extern int acpi_sleep_init(void);
+#else
+static inline int acpi_sleep_init(void) { return -ENXIO; }
+#endif
#ifdef CONFIG_ACPI_SLEEP
int acpi_sleep_proc_init(void);