ioapic_set_alloc_attr
extern void ioapic_set_alloc_attr(struct irq_alloc_info *info,
ioapic_set_alloc_attr(&info, node, trigger, polarity);
ioapic_set_alloc_attr(&info, NUMA_NO_NODE, 0, 0);
ioapic_set_alloc_attr(&tmp, NUMA_NO_NODE, it->is_level, it->active_low);
ioapic_set_alloc_attr(&info, dev_to_node(&dev->dev), 1, polarity_low);
ioapic_set_alloc_attr(&info, cpu_to_node(0), 1, 0);