xen/evtchn: add missing static

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/xen/evtchn.c b/drivers/xen/evtchn.c
index 68119f6324d4..f3594ec2ee33 100644
--- a/drivers/xen/evtchn.c
+++ b/drivers/xen/evtchn.c
@@ -99,7 +99,7 @@ static inline void set_port_enabled(unsigned port, bool enabled)
                 port_user[port] &= ~1;
 }
 
-irqreturn_t evtchn_interrupt(int irq, void *data)
+static irqreturn_t evtchn_interrupt(int irq, void *data)
 {
         unsigned int port = (unsigned long)data;
         struct per_user_data *u;