IRQEXT_CMC 74 arch/s390/kernel/irq.c {.irq = IRQEXT_CMC, .name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"}, IRQEXT_CMC 47 arch/s390/kernel/perf_cpum_cf_common.c inc_irq_stat(IRQEXT_CMC);