[PATCH 3.19.y-ckt 043/102] drm/dp-mst: Remove debug WARN_ON

Kamal Mostafa kamal at canonical.com
Tue Sep 22 17:51:39 UTC 2015


3.19.8-ckt7 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Daniel Vetter <daniel.vetter at ffwll.ch>

commit 42639ba554655c280ae6cb72df0522b1201f2961 upstream.

Apparently been in there since forever and fairly easy to hit when
hotplugging really fast. I can do that since my mst hub has a manual
button to flick the hpd line for reprobing. The resulting WARNING spam
isn't pretty.

Cc: Dave Airlie <airlied at gmail.com>
Reviewed-by: Thierry Reding <treding at nvidia.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2 at gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 30308ab..8239563 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1290,7 +1290,6 @@ retry:
 				goto retry;
 			}
 			DRM_DEBUG_KMS("failed to dpcd write %d %d\n", tosend, ret);
-			WARN(1, "fail\n");
 
 			return -EIO;
 		}
-- 
1.9.1





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