serial: max310x: Use uart_xmit_advance()

Take advantage of the new uart_xmit_advance() helper.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221019091151.6692-22-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index fbf6e2b3161c5a30287b8454bb1c057349f42516..4eb24e3407f803970bf0aa85cdf6c49a0438091f 100644 (file)
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -787,10 +787,7 @@ static void max310x_handle_tx(struct uart_port *port)
                } else {
                        max310x_batch_write(port, xmit->buf + xmit->tail, to_send);
                }
-
-               /* Add data to send */
-               port->icount.tx += to_send;
-               xmit->tail = (xmit->tail + to_send) & (UART_XMIT_SIZE - 1);
+               uart_xmit_advance(port, to_send);
        }
 
        if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)