[Xen-devel] [PATCH v4 16/24] xen: clear IRQ_NOAUTOEN and IRQ_NOREQUEST

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

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.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 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


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel