Re: [PATCH v5 08/20] drm/dp_mst: Stop releasing VCPI when removing ports from topology

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On Tue, Jan 08, 2019 at 07:35:05PM -0500, Lyude Paul wrote:
> This has never actually worked, and isn't needed anyway: the driver's
> always going to try to deallocate VCPI when it tears down the display
> that the VCPI belongs to.
> 
> Signed-off-by: Lyude Paul <lyude@xxxxxxxxxx>
> Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
> Cc: Daniel Vetter <daniel@xxxxxxxx>
> Cc: David Airlie <airlied@xxxxxxxxxx>
> Cc: Jerry Zuo <Jerry.Zuo@xxxxxxx>
> Cc: Juston Li <juston.li@xxxxxxxxx>

Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>

> ---
>  drivers/gpu/drm/drm_dp_mst_topology.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index bafc85f08606..8088527a7aea 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -1176,8 +1176,6 @@ static void drm_dp_destroy_port(struct kref *kref)
>  	struct drm_dp_mst_topology_mgr *mgr = port->mgr;
>  
>  	if (!port->input) {
> -		port->vcpi.num_slots = 0;
> -
>  		kfree(port->cached_edid);
>  
>  		/*
> @@ -3496,12 +3494,6 @@ static void drm_dp_destroy_connector_work(struct work_struct *work)
>  		drm_dp_port_teardown_pdt(port, port->pdt);
>  		port->pdt = DP_PEER_DEVICE_NONE;
>  
> -		if (!port->input && port->vcpi.vcpi > 0) {
> -			drm_dp_mst_reset_vcpi_slots(mgr, port);
> -			drm_dp_update_payload_part1(mgr);
> -			drm_dp_mst_put_payload_id(mgr, port->vcpi.vcpi);
> -		}
> -
>  		drm_dp_mst_put_port_malloc(port);
>  		send_hotplug = true;
>  	}
> -- 
> 2.20.1
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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