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Upgrade to 4.4.50-rt62
[kvmfornfv.git] / kernel / arch / x86 / kernel / acpi / boot.c
diff --git a/kernel/arch/x86/kernel/acpi/boot.c b/kernel/arch/x86/kernel/acpi/boot.c
index e759076..a29fc4f 100644 (file)
--- a/kernel/arch/x86/kernel/acpi/boot.c
+++ b/kernel/arch/x86/kernel/acpi/boot.c
@@ -87,7 +87,9 @@ static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
  *             ->ioapic_mutex
  *                     ->ioapic_lock
  */
+#ifdef CONFIG_X86_IO_APIC
 static DEFINE_MUTEX(acpi_ioapic_lock);
+#endif
 
 /* --------------------------------------------------------------------------
                               Boot-time Configuration