greybus: camera: Use pointer for gb camera module ops

No need to duplicate module ops on every registration.

NOTE: Change should be along merged with:
"msm: camera: Change gb_camera_module ops to pointer"
Signed-off-by: Gjorgji Rosikopulos <grosikopulos@mm-sol.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/camera.c

@@ -498,23 +498,30 @@ static int gb_camera_op_capture(void *priv, u32 request_id,
 		unsigned int streams, unsigned int num_frames,
 		size_t settings_size, const void *settings)
 {
-	return gb_camera_capture(priv, request_id, streams, num_frames,
+	struct gb_camera *gcam = priv;
+
+	return gb_camera_capture(gcam, request_id, streams, num_frames,
 				 settings_size, settings);
 }
 
 static int gb_camera_op_flush(void *priv, u32 *request_id)
 {
-	return gb_camera_flush(priv, request_id);
+	struct gb_camera *gcam = priv;
+
+	return gb_camera_flush(gcam, request_id);
 }
 
+static const struct gb_camera_ops gb_cam_ops = {
+	.capabilities = gb_camera_op_capabilities,
+	.configure_streams = gb_camera_op_configure_streams,
+	.capture = gb_camera_op_capture,
+	.flush = gb_camera_op_flush,
+};
+
 static int gb_camera_register_intf_ops(struct gb_camera *gcam)
 {
 	gcam->module.priv = gcam;
-	gcam->module.ops.capabilities = gb_camera_op_capabilities;
-	gcam->module.ops.configure_streams = gb_camera_op_configure_streams;
-	gcam->module.ops.capture = gb_camera_op_capture;
-	gcam->module.ops.flush = gb_camera_op_flush;
-
+	gcam->module.ops = &gb_cam_ops;
 	return gb_camera_register(&gcam->module);
 }
 

drivers/staging/greybus/gb-camera.h

@@ -36,14 +36,14 @@ struct gb_camera_ops {
 
 struct gb_camera_module {
 	void *priv;
-	struct gb_camera_ops ops;
+	const struct gb_camera_ops *ops;
 
 	struct list_head list; /* Global list */
 };
 
 #define gb_camera_call(f, op, args...)      \
-	((!(f) ? -ENODEV : ((f)->ops.op) ?  \
-	(f)->ops.op((f)->priv, ##args) : -ENOIOCTLCMD))
+	(!(f) ? -ENODEV : (((f)->ops->op) ?  \
+	(f)->ops->op((f)->priv, ##args) : -ENOIOCTLCMD))
 
 int gb_camera_register(struct gb_camera_module *module);
 int gb_camera_unregister(struct gb_camera_module *module);