request_nmi
ret = request_nmi(irq, &agdi_interrupt_handler_nmi, irq_flags,
err = request_nmi(irq, handler, irq_flags, "arm-pmu", armpmu);
ret = request_nmi(priv->irq, &a64fx_diag_handler_nmi, irq_flags,
request_nmi(unsigned int irq, irq_handler_t handler, unsigned long flags,