Re: Design of interrupt controller driver

[Thomas Gleixner]

On Tue, 6 Jun 2017, Mason wrote:
> On 06/06/2017 09:39, Thomas Gleixner wrote:
> What about disable_irq(virq);
> That function /is/ exported API, and eventually calls mask_irq.
> 
> disable_irq -> __disable_irq_nosync -> __disable_irq -> irq_disable -> 
> mask_irq

What you can call from an ISR is disable_irq_nosync(). disable_irq() will
deadlock.

Thanks,

        tglx