diff mbox series

[v4,14/31] media: entity: Add debug information in graph walk route check

Message ID 20190328200608.9463-15-jacopo+renesas@jmondi.org (mailing list archive)
State New
Delegated to: Kieran Bingham
Headers show
Series v4l: add support for multiplexed streams | expand

Commit Message

Jacopo Mondi March 28, 2019, 8:05 p.m. UTC 
From: Sakari Ailus <sakari.ailus@linux.intel.com>

Add debug printout in graph walk route check.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
---
 drivers/media/media-entity.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index 290083c445eb..d4fd2d337ea6 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -359,6 +359,9 @@  static void media_graph_walk_iter(struct media_graph *graph)
 	 */
 	if (!media_entity_has_route(pad->entity, pad->index, local->index)) {
 		link_top(graph) = link_top(graph)->next;
+		dev_dbg(pad->graph_obj.mdev->dev,
+			"walk: skipping \"%s\":%u -> %u (no route)\n",
+			pad->entity->name, pad->index, local->index);
 		return;
 	}