LEGAL_IRQ
#define LEGAL_IRQ(x) ((x) >= 0 && (x) < ICU_LEN && (x) != 2)
#define LEGAL_IRQ(x) ((x) >= 0 && (x) < ICU_LEN && (x) != 2)
#define LEGAL_IRQ(x) ((x) >= 0 && (x) < ICU_LEN && (x) != 2)
#define LEGAL_IRQ(x) ((x) >= 0 && (x) < ICU_LEN && (x) != 2)
#define LEGAL_IRQ(x) ((x) >= 0 && (x) < NUM_LEGACY_IRQS && (x) != 2)