xen: flag hvc_xen to be not essential for system boot

The Xen pv console driver is not essential for boot. 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/20211022064800.14978-4-jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index f0bf01e..71e0dd2 100644 (file)
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -522,6 +522,7 @@ static struct xenbus_driver xencons_driver = {
        .remove = xencons_remove,
        .resume = xencons_resume,
        .otherend_changed = xencons_backend_changed,
+       .not_essential = true,
 };
 #endif /* CONFIG_HVC_XEN_FRONTEND */