IO_APIC_IRQ       147 arch/x86/include/asm/io_apic.h #define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1 << (x)) & io_apic_irqs))
IO_APIC_IRQ       201 arch/x86/include/asm/io_apic.h #define IO_APIC_IRQ(x)		0