xen: flag xen_drm_front to be not essential for system boot

Similar to the virtual frame buffer (vfb) the pv display driver is not
essential for booting the system. Set the respective flag.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20211022064800.14978-3-jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 9f14d99c763c2b359b47b78dc9c76787b5ba97ab..bc7605324db39535938cc44ac1e15503d516f60c 100644 (file)
--- a/drivers/gpu/drm/xen/xen_drm_front.c
+++ b/drivers/gpu/drm/xen/xen_drm_front.c
@@ -773,6 +773,7 @@ static struct xenbus_driver xen_driver = {
        .probe = xen_drv_probe,
        .remove = xen_drv_remove,
        .otherend_changed = displback_changed,
+       .not_essential = true,
 };
 
 static int __init xen_drv_init(void)