arm64: address -Wmissing-prototype warnings

[PATCH 07/15] arm64: cpuidle: fix #ifdef for acpi functions

Posted by Arnd Bergmann 2 years, 8 months ago

From: Arnd Bergmann <arnd@arndb.de>

The acpi_processor_ffh_lpi_* functions are defined whenever CONFIG_ACPI
is enabled, but only called and declared when CONFIG_ACPI_PROCESSOR_IDLE
is also enabled. Without that, a W=1 build triggers missing-prototope
warnings, so the #ifdef needs to be adapted:

arch/arm64/kernel/cpuidle.c:60:5: error: no previous prototype for 'acpi_processor_ffh_lpi_probe' [-Werror=missing-prototypes]
arch/arm64/kernel/cpuidle.c:65:15: error: no previous prototype for 'acpi_processor_ffh_lpi_enter' [-Werror=missing-prototypes]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm64/kernel/cpuidle.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/cpuidle.c b/arch/arm64/kernel/cpuidle.c
index 42e19fff40ee..d1f68599c29f 100644
--- a/arch/arm64/kernel/cpuidle.c
+++ b/arch/arm64/kernel/cpuidle.c
@@ -13,7 +13,7 @@
 #include <linux/of_device.h>
 #include <linux/psci.h>
 
-#ifdef CONFIG_ACPI
+#ifdef CONFIG_ACPI_PROCESSOR_IDLE
 
 #include <acpi/processor.h>
 
-- 
2.39.2