media: mc: entity: Merge media_entity_enum_init and __media_entity_enum_init

The media_entity_enum_init() function is a wrapper around
__media_entity_enum_init() that turns a media_device pointer argument
into the maximum entity ID in the corresponding media graph.
__media_entity_enum_init() is never used outside of
media_entity_enum_init(), so the two functions can be merged together.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/mc/mc-entity.c

@@ -59,10 +59,12 @@ static inline const char *link_type_name(struct media_link *link)
 	}
 }
 
-__must_check int __media_entity_enum_init(struct media_entity_enum *ent_enum,
-					  int idx_max)
+__must_check int media_entity_enum_init(struct media_entity_enum *ent_enum,
+					struct media_device *mdev)
 {
-	idx_max = ALIGN(idx_max, BITS_PER_LONG);
+	int idx_max;
+
+	idx_max = ALIGN(mdev->entity_internal_idx_max + 1, BITS_PER_LONG);
 	ent_enum->bmap = bitmap_zalloc(idx_max, GFP_KERNEL);
 	if (!ent_enum->bmap)
 		return -ENOMEM;
@@ -71,7 +73,7 @@ __must_check int __media_entity_enum_init(struct media_entity_enum *ent_enum,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(__media_entity_enum_init);
+EXPORT_SYMBOL_GPL(media_entity_enum_init);
 
 void media_entity_enum_cleanup(struct media_entity_enum *ent_enum)
 {

include/media/media-device.h

@@ -191,21 +191,6 @@ struct usb_device;
 #define MEDIA_DEV_NOTIFY_PRE_LINK_CH	0
 #define MEDIA_DEV_NOTIFY_POST_LINK_CH	1
 
-/**
- * media_entity_enum_init - Initialise an entity enumeration
- *
- * @ent_enum: Entity enumeration to be initialised
- * @mdev: The related media device
- *
- * Return: zero on success or a negative error code.
- */
-static inline __must_check int media_entity_enum_init(
-	struct media_entity_enum *ent_enum, struct media_device *mdev)
-{
-	return __media_entity_enum_init(ent_enum,
-					mdev->entity_internal_idx_max + 1);
-}
-
 /**
  * media_device_init() - Initializes a media device element
  *

include/media/media-entity.h

@@ -439,15 +439,15 @@ static inline bool is_media_entity_v4l2_subdev(struct media_entity *entity)
 }
 
 /**
- * __media_entity_enum_init - Initialise an entity enumeration
+ * media_entity_enum_init - Initialise an entity enumeration
  *
  * @ent_enum: Entity enumeration to be initialised
- * @idx_max: Maximum number of entities in the enumeration
+ * @mdev: The related media device
  *
- * Return: Returns zero on success or a negative error code.
+ * Return: zero on success or a negative error code.
  */
-__must_check int __media_entity_enum_init(struct media_entity_enum *ent_enum,
-					  int idx_max);
+__must_check int media_entity_enum_init(struct media_entity_enum *ent_enum,
+					struct media_device *mdev);
 
 /**
  * media_entity_enum_cleanup - Release resources of an entity enumeration