If CONFIG_ACPI_SLEEP is unset, the compiler complains that pwr_btn_event_pending is defined but not used. To silence the warning, move the definition of pwr_btn_event_pending under an appropriate #ifdef. Reported-by: Paul E. McKenney <paul.mckenney@xxxxxxxxxx> Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx> --- drivers/acpi/sleep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux/drivers/acpi/sleep.c =================================================================== --- linux.orig/drivers/acpi/sleep.c +++ linux/drivers/acpi/sleep.c @@ -57,7 +57,6 @@ MODULE_PARM_DESC(gts, "Enable evaluation MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".); static u8 sleep_states[ACPI_S_STATE_COUNT]; -static bool pwr_btn_event_pending; static void acpi_sleep_tts_switch(u32 acpi_state) { @@ -110,6 +109,7 @@ static int acpi_sleep_prepare(u32 acpi_s #ifdef CONFIG_ACPI_SLEEP static u32 acpi_target_sleep_state = ACPI_STATE_S0; +static bool pwr_btn_event_pending; /* * The ACPI specification wants us to save NVS memory regions during hibernation -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html