MAX_PLUS_SHARED_IRQS  101 arch/x86/kernel/io_apic_32.c #define PIN_MAP_SIZE (MAX_PLUS_SHARED_IRQS + NR_IRQS)
MAX_PLUS_SHARED_IRQS  133 arch/x86/kernel/io_apic_64.c #define PIN_MAP_SIZE (MAX_PLUS_SHARED_IRQS + NR_IRQS)