On Mon, Aug 06, 2012 at 03:27:19PM +0100, Stefano Stabellini wrote:
> Reset the IRQ_NOAUTOEN and IRQ_NOREQUEST flags that are enabled by
> default on ARM. If IRQ_NOAUTOEN is set, __setup_irq doesn't call
> irq_startup, that is responsible for calling irq_unmask at startup time.
> As a result event channels remain masked.

Acked by me.
> 
> Signed-off-by: Stefano Stabellini <stefano.stabell...@eu.citrix.com>
> ---
>  drivers/xen/events.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/xen/events.c b/drivers/xen/events.c
> index 5ecb596..8ffb7b7 100644
> --- a/drivers/xen/events.c
> +++ b/drivers/xen/events.c
> @@ -836,6 +836,7 @@ int bind_evtchn_to_irq(unsigned int evtchn)
>               struct irq_info *info = info_for_irq(irq);
>               WARN_ON(info == NULL || info->type != IRQT_EVTCHN);
>       }
> +     irq_clear_status_flags(irq, IRQ_NOREQUEST|IRQ_NOAUTOEN);
>  
>  out:
>       mutex_unlock(&irq_mapping_update_lock);
> -- 
> 1.7.2.5

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