LAST_IRQ           27 arch/um/include/asm/irq.h #define LAST_IRQ (VECTOR_IRQ_SPACE + VECTOR_BASE_IRQ - 1)
LAST_IRQ           31 arch/um/include/asm/irq.h #define LAST_IRQ VIRTIO_IRQ
LAST_IRQ           61 include/linux/irqchip/irq-bcm2836.h #define LAST_IRQ		LOCAL_IRQ_PMU_FAST