[PATCH] ACPI: fix build warning in processor_idle.c

[Anirudh Rayabharam]

GCC shows the following warning during build:

drivers/acpi/processor_idle.c: In function ‘acpi_idle_play_dead’:
drivers/acpi/processor_idle.c:542:15: warning: extra tokens at end
of #ifdef directive

Fix by replacing "ifdef" with "if".

Signed-off-by: Anirudh Rayabharam <mail@xxxxxxxxxxxxx>
---
 drivers/acpi/processor_idle.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 19fb28a8005b..0925b1477230 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -539,7 +539,7 @@ static int acpi_idle_play_dead(struct cpuidle_device *dev, int index)
 		} else
 			return -ENODEV;
 
-#ifdef defined(CONFIG_X86) && defined(CONFIG_HOTPLUG_CPU)
+#if defined(CONFIG_X86) && defined(CONFIG_HOTPLUG_CPU)
 		/* If NMI wants to wake up CPU0, start CPU0. */
 		if (wakeup_cpu0())
 			start_cpu0();
-- 
2.26.2