[media] v4l: vsp1: Replace container_of() with dedicated macro

Add a macro to cast from a struct media_entity to a struct vsp1_entity
to replace the manual implementations.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/media/platform/vsp1/vsp1_entity.c b/drivers/media/platform/vsp1/vsp1_entity.c
index 6a96ea77de69..f60d7926d53f 100644
--- a/drivers/media/platform/vsp1/vsp1_entity.c
+++ b/drivers/media/platform/vsp1/vsp1_entity.c
@@ -22,6 +22,12 @@
 #include "vsp1_dl.h"
 #include "vsp1_entity.h"
 
+static inline struct vsp1_entity *
+media_entity_to_vsp1_entity(struct media_entity *entity)
+{
+        return container_of(entity, struct vsp1_entity, subdev.entity);
+}
+
 void vsp1_entity_route_setup(struct vsp1_entity *source,
                              struct vsp1_dl_list *dl)
 {
@@ -30,7 +36,7 @@ void vsp1_entity_route_setup(struct vsp1_entity *source,
         if (source->route->reg == 0)
                 return;
 
-        sink = container_of(source->sink, struct vsp1_entity, subdev.entity);
+        sink = media_entity_to_vsp1_entity(source->sink);
         vsp1_dl_list_write(dl, source->route->reg,
                            sink->route->inputs[source->sink_pad]);
 }
@@ -252,7 +258,7 @@ int vsp1_entity_link_setup(struct media_entity *entity,
         if (!(local->flags & MEDIA_PAD_FL_SOURCE))
                 return 0;
 
-        source = container_of(local->entity, struct vsp1_entity, subdev.entity);
+        source = media_entity_to_vsp1_entity(local->entity);
 
         if (!source->route)
                 return 0;