desc->handle(irq, desc, regs); 
desc_handle_irq(irq, desc, regs); 
imx_gpio_handler(unsigned int mask, unsigned int irq,                 struct irqdesc *desc, struct pt_regs *regs){	desc = irq_desc + irq;	while (mask) {		if (mask & 1) {			DEBUG_IRQ("handling irq %d\n", irq);			desc->handle(irq, desc, regs);		}		irq++;		desc++;		mask >>= 1;	}}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/664399e1fbdceb18da9c9c5534dedd62327c63e8/irq.c/clean/arch/arm/mach-imx/irq.c