smc_interrupt
retval = request_irq(dev->irq, smc_interrupt, 0, DRV_NAME, dev);
static irqreturn_t smc_interrupt(int irq, void *);
smc_interrupt(dev->irq, dev);
static irqreturn_t smc_interrupt(int irq, void *dev_id);
i = pcmcia_request_irq(link, smc_interrupt);
smc_interrupt(dev->irq, dev);
retval = request_irq(dev->irq, smc_interrupt, irq_flags, dev->name, dev);