xen/evtchn: support more than 4096 ports

Remove the check during unbind for NR_EVENT_CHANNELS as this limits
support to less than 4096 ports.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/xen/evtchn.c b/drivers/xen/evtchn.c
index 5de2063e16d3..00f40f051d95 100644
--- a/drivers/xen/evtchn.c
+++ b/drivers/xen/evtchn.c
@@ -417,7 +417,7 @@ static long evtchn_ioctl(struct file *file,
                         break;
 
                 rc = -EINVAL;
-                if (unbind.port >= NR_EVENT_CHANNELS)
+                if (unbind.port >= xen_evtchn_nr_channels())
                         break;
 
                 rc = -ENOTCONN;