[PATCHv2 02/10] ARM: vic: MULTI_IRQ_HANDLER handler

[Nicolas Pitre]

On Thu, 3 Nov 2011, Russell King - ARM Linux wrote:

> 	stat = readl_relaxed(vic->base + VIC_IRQ_STATUS);
> 	while (stat) {
> 		while (stat) {
> 			irq = ffs(stat) - 1;
> 			stat &= ~(1 << irq);
> 			handle_irq(irq);
> 		}
> 		stat = readl_relaxed(vic->base + VIC_IRQ_STATUS);
> 	}

The inner loop could be a do { } while() construct to avoid evaluating 
stat twice on each outer loop itteration.  Maybe gcc is smart enough to 
notice though, maybe not.


Nicolas