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-rw-r--r--drivers/acpi/internal.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 66229ffa909b..75924ea69071 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -198,8 +198,10 @@ void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
Suspend/Resume
-------------------------------------------------------------------------- */
#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
+extern bool acpi_s2idle_wakeup(void);
extern int acpi_sleep_init(void);
#else
+static inline bool acpi_s2idle_wakeup(void) { return false; }
static inline int acpi_sleep_init(void) { return -ENXIO; }
#endif