irq_subclass      111 arch/s390/include/asm/irq.h void irq_subclass_register(enum irq_subclass subclass);
irq_subclass      112 arch/s390/include/asm/irq.h void irq_subclass_unregister(enum irq_subclass subclass);
irq_subclass      317 arch/s390/kernel/irq.c void irq_subclass_register(enum irq_subclass subclass)
irq_subclass      327 arch/s390/kernel/irq.c void irq_subclass_unregister(enum irq_subclass subclass)