[v5,1/4] arm64: Declare ACPI parking protocol CPU operation if needed
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Message ID 20200318230145.72097-2-gshan@redhat.com
State New
Headers show
Series
  • arm64: Dereference CPU operations indirectly
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Commit Message

Gavin Shan March 18, 2020, 11:01 p.m. UTC
It's obvious we needn't declare the corresponding CPU operation when
CONFIG_ARM64_ACPI_PARKING_PROTOCOL is disabled, even it doesn't cause
any compiling warnings.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
---
 arch/arm64/kernel/cpu_ops.c | 2 ++
 1 file changed, 2 insertions(+)

Patch
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diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c
index 7e07072757af..2082cfb1be86 100644
--- a/arch/arm64/kernel/cpu_ops.c
+++ b/arch/arm64/kernel/cpu_ops.c
@@ -15,7 +15,9 @@ 
 #include <asm/smp_plat.h>
 
 extern const struct cpu_operations smp_spin_table_ops;
+#ifdef CONFIG_ARM64_ACPI_PARKING_PROTOCOL
 extern const struct cpu_operations acpi_parking_protocol_ops;
+#endif
 extern const struct cpu_operations cpu_psci_ops;
 
 const struct cpu_operations *cpu_ops[NR_CPUS] __ro_after_init;