APIC_SYMMETRIC_IO 1393 arch/x86/kernel/apic/apic.c return APIC_SYMMETRIC_IO; APIC_SYMMETRIC_IO 1471 arch/x86/kernel/apic/apic.c case APIC_SYMMETRIC_IO: APIC_SYMMETRIC_IO 1362 arch/x86/kernel/smpboot.c case APIC_SYMMETRIC_IO: