From 82cfd6f4fd28374185dda1e2dea428c8a5925da0 Mon Sep 17 00:00:00 2001
From: Ian Campbell <ian.campbell@citrix.com>
Date: Fri, 6 Feb 2009 19:20:31 -0800
Subject: [PATCH] --- yaml --- r: 145833 b: refs/heads/master c:
 d4c045364d3107603187f21a56ec231e74d26441 h: refs/heads/master i:   145831:
 8b66fecbb36182ec0e39754a39806a87c7c4b7f6 v: v3

---
 [refs]                     | 2 +-
 trunk/drivers/xen/events.c | 6 ++++++
 trunk/include/xen/events.h | 3 +++
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 0275a3a5b26a..c5a75ec078f7 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6d02c42698f99eccb290ac53d4f10ca883b9f90c
+refs/heads/master: d4c045364d3107603187f21a56ec231e74d26441
diff --git a/trunk/drivers/xen/events.c b/trunk/drivers/xen/events.c
index 30963af5dba0..1cd2a0e15ae8 100644
--- a/trunk/drivers/xen/events.c
+++ b/trunk/drivers/xen/events.c
@@ -151,6 +151,12 @@ static unsigned int evtchn_from_irq(unsigned irq)
 	return info_for_irq(irq)->evtchn;
 }
 
+unsigned irq_from_evtchn(unsigned int evtchn)
+{
+	return evtchn_to_irq[evtchn];
+}
+EXPORT_SYMBOL_GPL(irq_from_evtchn);
+
 static enum ipi_vector ipi_from_irq(unsigned irq)
 {
 	struct irq_info *info = info_for_irq(irq);
diff --git a/trunk/include/xen/events.h b/trunk/include/xen/events.h
index 0d5f1adc0363..e68d59a90ca8 100644
--- a/trunk/include/xen/events.h
+++ b/trunk/include/xen/events.h
@@ -53,4 +53,7 @@ bool xen_test_irq_pending(int irq);
    irq will be disabled so it won't deliver an interrupt. */
 void xen_poll_irq(int irq);
 
+/* Determine the IRQ which is bound to an event channel */
+unsigned irq_from_evtchn(unsigned int evtchn);
+
 #endif	/* _XEN_EVENTS_H */