Re: [PATCH 1/4] drm: Remove slot checks in dp mst topology during commit

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Reviewed-by: Lyude Paul <lyude@xxxxxxxxxx>

On Wed, 2021-10-20 at 10:16 -0400, Bhawanpreet Lakha wrote:
> This code path is used during commit, and we dont expect things to fail
> during the commit stage, so remove this.
> 
> Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@xxxxxxx>
> ---
>  drivers/gpu/drm/drm_dp_mst_topology.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index ad0795afc21c..5ab3b3a46e89 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4332,10 +4332,6 @@ static int drm_dp_init_vcpi(struct
> drm_dp_mst_topology_mgr *mgr,
>  {
>         int ret;
>  
> -       /* max. time slots - one slot for MTP header */
> -       if (slots > 63)
> -               return -ENOSPC;
> -
>         vcpi->pbn = pbn;
>         vcpi->aligned_pbn = slots * mgr->pbn_div;
>         vcpi->num_slots = slots;
> @@ -4538,7 +4534,7 @@ bool drm_dp_mst_allocate_vcpi(struct
> drm_dp_mst_topology_mgr *mgr,
>  
>         ret = drm_dp_init_vcpi(mgr, &port->vcpi, pbn, slots);
>         if (ret) {
> -               drm_dbg_kms(mgr->dev, "failed to init vcpi slots=%d max=63
> ret=%d\n",
> +               drm_dbg_kms(mgr->dev, "failed to init vcpi slots=%d
> ret=%d\n",
>                             DIV_ROUND_UP(pbn, mgr->pbn_div), ret);
>                 drm_dp_mst_topology_put_port(port);
>                 goto out;

-- 
Cheers,
 Lyude Paul (she/her)
 Software Engineer at Red Hat




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