Hi folks,
I'm new to DRM and trying to understand the warning in
drivers/gpu/drm/drm_vblank.c during drm_vblank_cleanup().
WARN_ON(READ_ONCE(vblank->enabled) &&
drm_core_check_feature(dev, DRIVER_MODESET));
Is the drm driver responsible for making sure that !(vblank->enabled) in
the .unbind operation, or is this something related to userspace? What
does the warning signify? Git history did not help here at all.
Regards,
Ahsan.
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