IRQ_NOTHREAD
IRQ_PER_CPU | IRQ_NESTED_THREAD | IRQ_NOTHREAD | IRQ_PER_CPU_DEVID | \
irq_modify_status(irq, 0, IRQ_NOTHREAD);
irq_modify_status(irq, IRQ_NOTHREAD, 0);
IRQ_NOAUTOEN | IRQ_PER_CPU | IRQ_NOTHREAD |
___P(IRQ_NOTHREAD);
_IRQ_NOTHREAD = IRQ_NOTHREAD,