linux-kernel - Re: [PATCH v2 18/27] drm/dp_mst: Remove lies in {up,down}_rep

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Date:   Wed, 25 Sep 2019 15:32:11 -0400
From:   Sean Paul <sean@...rly.run>
To:     Lyude Paul <lyude@...hat.com>
Cc:     dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        amd-gfx@...ts.freedesktop.org, Juston Li <juston.li@...el.com>,
        Imre Deak <imre.deak@...el.com>,
        Ville Syrjälä 
        <ville.syrjala@...ux.intel.com>, Harry Wentland <hwentlan@....com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 18/27] drm/dp_mst: Remove lies in {up,down}_rep_recv
 documentation

On Tue, Sep 03, 2019 at 04:45:56PM -0400, Lyude Paul wrote:
> These are most certainly accessed from far more than the mgr work. In
> fact, up_req_recv is -only- ever accessed from outside the mgr work.
> 
> Cc: Juston Li <juston.li@...el.com>
> Cc: Imre Deak <imre.deak@...el.com>
> Cc: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> Cc: Harry Wentland <hwentlan@....com>
> Cc: Daniel Vetter <daniel.vetter@...ll.ch>
> Signed-off-by: Lyude Paul <lyude@...hat.com>

Reviewed-by: Sean Paul <sean@...rly.run>

> ---
>  include/drm/drm_dp_mst_helper.h | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
> index f253ee43e9d9..8ba2a01324bb 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -489,15 +489,11 @@ struct drm_dp_mst_topology_mgr {
>  	int conn_base_id;
>  
>  	/**
> -	 * @down_rep_recv: Message receiver state for down replies. This and
> -	 * @up_req_recv are only ever access from the work item, which is
> -	 * serialised.
> +	 * @down_rep_recv: Message receiver state for down replies.
>  	 */
>  	struct drm_dp_sideband_msg_rx down_rep_recv;
>  	/**
> -	 * @up_req_recv: Message receiver state for up requests. This and
> -	 * @down_rep_recv are only ever access from the work item, which is
> -	 * serialised.
> +	 * @up_req_recv: Message receiver state for up requests.
>  	 */
>  	struct drm_dp_sideband_msg_rx up_req_recv;
>  
> -- 
> 2.21.0
> 

-- 
Sean Paul, Software Engineer, Google / Chromium OS