[PATCH AUTOSEL 5.15 49/68] xen: flag xen_drm_front to be not essential for system boot

[Sasha Levin <sashal@xxxxxxxxxx>]

From: Juergen Gross <jgross@xxxxxxxx>

[ Upstream commit 1c669938c31b6e2a0d5149c3c6257ca9df6cb100 ]

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@xxxxxxxx>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20211022064800.14978-3-jgross@xxxxxxxx
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/gpu/drm/xen/xen_drm_front.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/xen/xen_drm_front.c 
b/drivers/gpu/drm/xen/xen_drm_front.c
index 9f14d99c763c2..bc7605324db39 100644
--- 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)
-- 
2.33.0