[3.16.y-ckt stable] Patch "xen/events: Set irq_info->evtchn before binding the channel to CPU in __startup_pirq()" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    xen/events: Set irq_info->evtchn before binding the channel to CPU in __startup_pirq()

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt12.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 0fe31198659369915373e610507ff37c20feee62 Mon Sep 17 00:00:00 2001
From: Boris Ostrovsky <boris.ostrovsky at oracle.com>
Date: Wed, 29 Apr 2015 17:10:15 -0400
Subject: xen/events: Set irq_info->evtchn before binding the channel to CPU in
 __startup_pirq()

commit 16e6bd5970c88a2ac018b84a5f1dd5c2ff1fdf2c upstream.

.. because bind_evtchn_to_cpu(evtchn, cpu) will map evtchn to
'info' and pass 'info' down to xen_evtchn_port_bind_to_cpu().

Signed-off-by: Boris Ostrovsky <boris.ostrovsky at oracle.com>
Tested-by: Annie Li <annie.li at oracle.com>
Signed-off-by: David Vrabel <david.vrabel at citrix.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/xen/events/events_base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 04766f61fc96..31ac2eec06e4 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -529,8 +529,8 @@ static unsigned int __startup_pirq(unsigned int irq)
 	if (rc)
 		goto err;

-	bind_evtchn_to_cpu(evtchn, 0);
 	info->evtchn = evtchn;
+	bind_evtchn_to_cpu(evtchn, 0);

 	rc = xen_evtchn_port_setup(info);
 	if (rc)