1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index 6fae733e9194..3ffd925655e0 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -21,11 +21,13 @@ early_param("x2apic_phys", set_x2apic_phys_mode);
 
 static bool x2apic_fadt_phys(void)
 {
+#ifdef CONFIG_ACPI
         if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) &&
                 (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) {
                 printk(KERN_DEBUG "System requires x2apic physical mode\n");
                 return true;
         }
+#endif
         return false;
 }