linux-kernel - [RFC v2 05/18] drm/display/dp_mst: Fix confusing docs for drm_dp_atomic_release_time

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Date:   Mon,  8 Aug 2022 19:51:50 -0400
From:   Lyude Paul <lyude@...hat.com>
To:     dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        amd-gfx@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org
Cc:     Wayne Lin <Wayne.Lin@....com>,
        Ville Syrjälä 
        <ville.syrjala@...ux.intel.com>, Fangzhi Zuo <Jerry.Zuo@....com>,
        Jani Nikula <jani.nikula@...el.com>,
        Imre Deak <imre.deak@...el.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Bhawanpreet Lakha <Bhawanpreet.Lakha@....com>,
        linux-kernel@...r.kernel.org (open list)
Subject: [RFC v2 05/18] drm/display/dp_mst: Fix confusing docs for drm_dp_atomic_release_time_slots()

For some reason we mention returning 0 if "slots have been added back to
drm_dp_mst_topology_state->avail_slots". This is totally misleading,
avail_slots is simply for figuring out the total number of slots available
in total on the topology and has no relation to the current payload
allocations.

So, let's get rid of that comment.

Signed-off-by: Lyude Paul <lyude@...hat.com>
Cc: Wayne Lin <Wayne.Lin@....com>
Cc: Ville Syrjälä <ville.syrjala@...ux.intel.com>
Cc: Fangzhi Zuo <Jerry.Zuo@....com>
Cc: Jani Nikula <jani.nikula@...el.com>
Cc: Imre Deak <imre.deak@...el.com>
Cc: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: Sean Paul <sean@...rly.run>
Acked-by: Jani Nikula <jani.nikula@...el.com>
---
 drivers/gpu/drm/display/drm_dp_mst_topology.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c
index fad80ab2b9db..8a2ddfde594a 100644
--- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
@@ -4456,8 +4456,7 @@ EXPORT_SYMBOL(drm_dp_atomic_find_time_slots);
  * drm_dp_mst_atomic_check()
  *
  * Returns:
- * 0 if all slots for this port were added back to
- * &drm_dp_mst_topology_state.avail_slots or negative error code
+ * 0 on success, negative error code otherwise
  */
 int drm_dp_atomic_release_time_slots(struct drm_atomic_state *state,
 				     struct drm_dp_mst_topology_mgr *mgr,
-- 
2.37.1