arm/arm64: GICv2 driver does not have irq_disable implemented

[Thomas Gleixner]

On Fri, 9 Oct 2015, Duc Dang wrote:
> Hi Thomas, Marc, Jason and All,
> 
> In APM ARM64 X-Gene Enet controller driver, we use disable_irq_nosync to
> disable interrupt before calling __napi_schedule to schedule packet handler
> to process the Tx/Rx packets.

Which is wrong to begin with. Disable the interrupt at the device
level not at the interrupt line level.
 
Thanks,

	tglx