1 files changed, 1 insertions, 0 deletions

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 0c21ea3bb672..071daf8db600 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -259,6 +259,7 @@ struct acpi_device_perf {
 /* Wakeup Management */
 struct acpi_device_wakeup_flags {
         u8 valid:1;             /* Can successfully enable wakeup? */
+        u8 prepared:1;          /* Has the wake-up capability been enabled? */
         u8 run_wake:1;          /* Run-Wake GPE devices */
 };