We added crtc_id to the atomic ioctl, but forgot to add it for vblank
and page flip events. Commit bd386e518056 ("drm: Reorganize
drm_pending_event to support future event types [v2]") added it to
the vblank event, but page flip event was still missing.

Correct this and add a test for making sure we always set crtc_id correctly.

Fixes: bd386e518056 ("drm: Reorganize drm_pending_event to support future event 
types [v2]")
Fixes: 5db06a8a98f5 ("drm: Pass CRTC ID in userspace vblank events")
Cc: Daniel Stone <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Gustavo Padovan <[email protected]>
Cc: Sean Paul <[email protected]>
Cc: [email protected]
Cc: <[email protected]> # v4.12+

Signed-off-by: Maarten Lankhorst <[email protected]>
---
 drivers/gpu/drm/drm_plane.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index 19404e34cd59..37a93cdffb4a 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -1030,6 +1030,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
                e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
                e->event.base.length = sizeof(e->event);
                e->event.vbl.user_data = page_flip->user_data;
+               e->event.vbl.crtc_id = crtc->base.id;
                ret = drm_event_reserve_init(dev, file_priv, &e->base, 
&e->event.base);
                if (ret) {
                        kfree(e);
-- 
2.15.0

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