xen: flag pvcalls-front to be not essential for system boot

The Xen pvcalls device is not essential for booting. Set the respective
flag.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20211022064800.14978-5-jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c
index 7984645..3c9ae15 100644 (file)
--- a/drivers/xen/pvcalls-front.c
+++ b/drivers/xen/pvcalls-front.c
@@ -1275,6 +1275,7 @@ static struct xenbus_driver pvcalls_front_driver = {
        .probe = pvcalls_front_probe,
        .remove = pvcalls_front_remove,
        .otherend_changed = pvcalls_front_changed,
+       .not_essential = true,
 };
 
 static int __init pvcalls_frontend_init(void)