[PATCHv2 02/10] ARM: vic: MULTI_IRQ_HANDLER handler
From: Nicolas Pitre <hidden>
Date: 2011-11-03 13:49:55
Also in:
linux-devicetree
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