[PATCH v2 16/23] xen: clear IRQ_NOAUTOEN and IRQ_NOREQUEST

Stefano Stabellini
2012-08-06T14:56:07Z

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@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