Re: [PATCH v3 1/2] drm/mediatek: Fix iommu fault by swapping FBs after updating plane state

[Alexandre Mergnat]

On 10/07/2023 11:32, Jason-JH.Lin wrote:
> According to the comment in drm_atomic_helper_async_commit(),
> we should make sure FBs have been swapped, so that cleanups in the
> new_state performs a cleanup in the old FB.
>
> So we should move swapping FBs after calling mtk_plane_update_new_state(),
> to avoid using the old FB which could be freed.

Reviewed-by: Alexandre Mergnat <amergnat@xxxxxxxxxxxx>

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Regards,
Alexandre