irq_subclass_unregister
void irq_subclass_unregister(enum irq_subclass subclass);
EXPORT_SYMBOL(irq_subclass_unregister);
irq_subclass_unregister(IRQ_SUBCLASS_MEASUREMENT_ALERT);
irq_subclass_unregister(IRQ_SUBCLASS_MEASUREMENT_ALERT);
irq_subclass_unregister(IRQ_SUBCLASS_WARNING_TRACK);
irq_subclass_unregister(IRQ_SUBCLASS_SERVICE_SIGNAL);
irq_subclass_unregister(IRQ_SUBCLASS_SERVICE_SIGNAL);
irq_subclass_unregister(IRQ_SUBCLASS_SERVICE_SIGNAL);