[PATCH] perf: arm_cspmu: Fix build failure on x86_64

[Besar Wicaksono]

Building on x86_64 allmodconfig failed:
  | drivers/perf/arm_cspmu/arm_cspmu.c:1114:29: error: implicit
  |    declaration of function 'get_acpi_id_for_cpu'

get_acpi_id_for_cpu is a helper function from ARM64.
Fix by adding ARM64 dependency.

Signed-off-by: Besar Wicaksono <bwicaksono@xxxxxxxxxx>
---
 drivers/perf/arm_cspmu/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/perf/arm_cspmu/Kconfig b/drivers/perf/arm_cspmu/Kconfig
index 058223bef661..0b316fe69a45 100644
--- a/drivers/perf/arm_cspmu/Kconfig
+++ b/drivers/perf/arm_cspmu/Kconfig
@@ -4,7 +4,7 @@
 
 config ARM_CORESIGHT_PMU_ARCH_SYSTEM_PMU
 	tristate "ARM Coresight Architecture PMU"
-	depends on ACPI
+	depends on ARM64 && ACPI
 	depends on ACPI_APMT || COMPILE_TEST
 	help
 	  Provides support for performance monitoring unit (PMU) devices

base-commit: 9500fc6e9e6077616c0dea0f7eb33138be94ed0c
-- 
2.17.1