FIRST_EXTERNAL_VECTOR  188 arch/x86/include/asm/hw_irq.h extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
FIRST_EXTERNAL_VECTOR   47 arch/x86/include/asm/irq_vectors.h #define IRQ_MOVE_CLEANUP_VECTOR		FIRST_EXTERNAL_VECTOR
FIRST_EXTERNAL_VECTOR   58 arch/x86/include/asm/irq_vectors.h #define IRQ0_VECTOR			((FIRST_EXTERNAL_VECTOR + 16) & ~15)