[PATCH] GIC: Dont disable INT in ack callback

[Rabin Vincent]

On Thu, Jul 22, 2010 at 03:57:30PM -0700, Jeff Ohlstein wrote:
> Unless gic_ack_irq is called from __do_IRQ, interrupt should not
> be disabled in the ack function. Disabling the interrupt causes
> handle_edge_irq to never enable it again.

The GIC doesn't use handle_edge_irq.

Anyway, this change is correct since gic_ack_irq is currently doing a
maskack, when it should be just an ack.  However, since
GENERIC_HARDIRQS_NO__DO_IRQ is always true on ARM, I don't see a need to
add the ifndef.