drm/atomic-helper: WARN if legacy plane fb pointers are bogus when committing duplica...
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Thu, 22 Mar 2018 15:22:54 +0000 (17:22 +0200)
committerVille Syrjälä <ville.syrjala@linux.intel.com>
Thu, 29 Mar 2018 16:14:21 +0000 (19:14 +0300)
commit5e78d01fa1a7f1794dfc44a6eb77bfec7a8d590d
tree9e32966256f485f602ec45b2ad79c054de2a5e2f
parent7e7de761af2e4760cc5ad2968c37c2814317ede6
drm/atomic-helper: WARN if legacy plane fb pointers are bogus when committing duplicated state

drm_atomic_helper_commit_duplicated_state() should only be called
resume/reset/load_detect paths where plane->old_fb should always be
NULL and plane->fb should be equal to the new_plane_state->fb.
Assert that is indeed the case.

Cc: martin.peres@free.fr
Cc: chris@chris-wilson.co.uk
Cc: Dave Airlie <airlied@gmail.com> (v1)
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180322152313.6561-5-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
drivers/gpu/drm/drm_atomic_helper.c