On 12:50 Thu 09 Apr , yanhua wrote: ... > +static struct irqaction irq5 = { > + .handler = timer_interrupt, > + .flags = IRQF_DISABLED | IRQF_NOBALANCING, > + .mask = CPU_MASK_NONE, The mask field of irqaction has already been removed. http://repo.or.cz/w/linux-2.6/linux-loongson.git?a=commit;h=9fb4061c577711830a173bc2b152000af788e3c6 Zhang, Le