diff mbox series

[v10,17/38] media: entity: Skip link validation for pads to which there is no route

Message ID 20211130141536.891878-18-tomi.valkeinen@ideasonboard.com
State New
Headers show
Series v4l: subdev internal routing and streams | expand

Commit Message

Tomi Valkeinen Nov. 30, 2021, 2:15 p.m. UTC 
From: Sakari Ailus <sakari.ailus@linux.intel.com>

Links are validated along the pipeline which is about to start streaming.
Not all the pads in entities that are traversed along that pipeline are
part of the pipeline, however. Skip the link validation for such pads.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 drivers/media/mc/mc-entity.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/mc/mc-entity.c b/drivers/media/mc/mc-entity.c
index 58cdc9c6b342..e963850b32df 100644
--- a/drivers/media/mc/mc-entity.c
+++ b/drivers/media/mc/mc-entity.c
@@ -489,6 +489,11 @@  __must_check int __media_pipeline_start(struct media_pad *pad,
 				link->sink->entity == entity ?
 				link->sink : link->source;
 
+			/* Ignore pads to which there is no route. */
+			if (!media_entity_has_route(entity, pad->index,
+						    other_pad->index))
+				continue;
+
 			/* Mark that a pad is connected by a link. */
 			bitmap_clear(has_no_links, other_pad->index, 1);