static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs);
static struct irqaction timer_irqaction = {
.handler = timer_interrupt,
static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs);
static struct irqaction timer_irqaction = {
.handler = timer_interrupt,