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