greybus: get rid of greybus_gbuf_finished()

All greybus_gbuf_finished() does is call the gbuf's complete method.
Currently, greybus_gbuf_finished() is only ever called in one place,
and that place can call the complete method directly instead.  That
allows us to eliminate greybus_gbuf_finished().
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/staging/greybus/gbuf.c

@@ -128,13 +128,6 @@ void greybus_cport_in(struct greybus_host_device *hd, u16 cport_id,
 }
 EXPORT_SYMBOL_GPL(greybus_cport_in);
 
-/* Can be called in interrupt context, do the work and get out of here */
-void greybus_gbuf_finished(struct gbuf *gbuf)
-{
-	gbuf->complete(gbuf);
-}
-EXPORT_SYMBOL_GPL(greybus_gbuf_finished);
-
 int gb_gbuf_init(void)
 {
 	gbuf_head_cache = kmem_cache_create("gbuf_head_cache",

drivers/staging/greybus/greybus.h

@@ -191,7 +191,6 @@ struct greybus_host_device *greybus_create_hd(struct greybus_host_driver *hd,
 void greybus_remove_hd(struct greybus_host_device *hd);
 void greybus_cport_in(struct greybus_host_device *hd, u16 cport_id,
 			u8 *data, size_t length);
-void greybus_gbuf_finished(struct gbuf *gbuf);
 
 struct gbuf *greybus_alloc_gbuf(struct gb_operation *operation,
 				gbuf_complete_t complete, unsigned int size,

drivers/staging/greybus/operation.c

@@ -207,6 +207,7 @@ static void gb_operation_request_handle(struct gb_operation *operation)
 static void gb_operation_recv_work(struct work_struct *recv_work)
 {
 	struct gb_operation *operation;
+	struct gbuf *gbuf;
 	bool incoming_request;
 
 	operation = container_of(recv_work, struct gb_operation, recv_work);
@@ -217,9 +218,10 @@ static void gb_operation_recv_work(struct work_struct *recv_work)
 
 	/* We're finished with the buffer we read into */
 	if (incoming_request)
-		greybus_gbuf_finished(operation->request);
+		gbuf = operation->request;
 	else
-		greybus_gbuf_finished(operation->response);
+		gbuf = operation->response;
+	gbuf->complete(gbuf);
 }
 
 /*