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Message-Id: <1367264377-7107-1-git-send-email-julien.grall@linaro.org>
Date: Mon, 29 Apr 2013 20:39:37 +0100
From: Julien Grall <julien.grall@...aro.org>
To: xen-devel@...ts.xensource.com, linux-kernel@...r.kernel.org
Cc: konrad.wilk@...cle.com, Stefano.Stabellini@...citrix.com,
patches@...aro.org, Julien Grall <julien.grall@...aro.org>
Subject: [PATCH] xen: clear IRQ_NOAUTOEN and IRQ_NOREQUEST when a VIRQ is bound
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.
The clear is already made in bind_evtchn_to_irq with commit a8636c0 but was
missing in bind_virq_to_irq.
Signed-off-by: Julien Grall <julien.grall@...aro.org>
---
drivers/xen/events.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index d8cc812..b0ad226 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -994,6 +994,7 @@ int bind_virq_to_irq(unsigned int virq, unsigned int cpu)
WARN_ON(info == NULL || info->type != IRQT_VIRQ);
}
+ irq_clear_status_flags(irq, IRQ_NOREQUEST|IRQ_NOAUTOEN);
out:
mutex_unlock(&irq_mapping_update_lock);
--
1.7.10.4
--
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