greybus: operation: clean up request handler

Clean up the incoming request handler somewhat by passing a properly
aligned header and dropping the now redundant id and type parameters.

Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

diff --git a/drivers/staging/greybus/operation.c b/drivers/staging/greybus/operation.c
index b9692b7..0123109 100644 (file)
--- a/drivers/staging/greybus/operation.c
+++ b/drivers/staging/greybus/operation.c
@@ -889,12 +889,17 @@ EXPORT_SYMBOL_GPL(greybus_message_sent);
  * data into the request buffer and handle the rest via workqueue.
  */
 static void gb_connection_recv_request(struct gb_connection *connection,
-                                      u16 operation_id, u8 type,
-                                      void *data, size_t size)
+                               const struct gb_operation_msg_hdr *header,
+                               void *data, size_t size)
 {
        struct gb_operation *operation;
+       u16 operation_id;
+       u8 type;
        int ret;
 
+       operation_id = le16_to_cpu(header->operation_id);
+       type = header->type;
+
        operation = gb_operation_create_incoming(connection, operation_id,
                                                type, data, size);
        if (!operation) {
@@ -1002,7 +1007,6 @@ void gb_connection_recv(struct gb_connection *connection,
        struct gb_operation_msg_hdr header;
        struct device *dev = &connection->hd->dev;
        size_t msg_size;
-       u16 operation_id;
 
        if (connection->state == GB_CONNECTION_STATE_DISABLED ||
                        gb_connection_is_offloaded(connection)) {
@@ -1029,13 +1033,13 @@ void gb_connection_recv(struct gb_connection *connection,
                return;         /* XXX Should still complete operation */
        }
 
-       operation_id = le16_to_cpu(header.operation_id);
-       if (header.type & GB_MESSAGE_TYPE_RESPONSE)
+       if (header.type & GB_MESSAGE_TYPE_RESPONSE) {
                gb_connection_recv_response(connection, &header, data,
                                                msg_size);
-       else
-               gb_connection_recv_request(connection, operation_id,
-                                               header.type, data, msg_size);
+       } else {
+               gb_connection_recv_request(connection, &header, data,
+                                               msg_size);
+       }
 }
 
 /*