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(parent: 6d84576) | patch
drm: require a non_NULL drm_crtc.primary
authorSimon Ser <contact@emersion.fr>
Fri, 11 Dec 2020 18:46:33 +0000 (19:46 +0100)
committerSimon Ser <contact@emersion.fr>
Tue, 15 Dec 2020 15:46:55 +0000 (16:46 +0100)
commit2200736a0c4d3f3195410c1fa95aae579a107d28
tree9c0058e5a8e08e1aa053ba661f93d224d04873f1tree | snapshot
parent6d84576fb2e723630499b9d56bc7c7eabadd6f94commit | diff
drm: require a non_NULL drm_crtc.primary

If a CRTC is missing a legacy primary plane pointer, a lot of things
will be broken for user-space: fbdev stops working and the entire legacy
uAPI stops working.

Require all drivers to populate drm_crtc.primary to prevent these
issues. Warn if it's NULL.

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201211184634.74534-3-contact@emersion.fr
drivers/gpu/drm/drm_mode_config.c diff | blob | history
drivers/gpu/drm/drm_plane.c diff | blob | history
Domain: System / Kernel;