[PATCH 38/44] serial: sunsu: Use uart_xmit_advance()

[Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>]

Take advantage of the new uart_xmit_advance() helper.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
---
 drivers/tty/serial/sunsu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/sunsu.c b/drivers/tty/serial/sunsu.c
index 9ea7e567540d..fed052a0b931 100644
--- a/drivers/tty/serial/sunsu.c
+++ b/drivers/tty/serial/sunsu.c
@@ -417,8 +417,7 @@ static void transmit_chars(struct uart_sunsu_port *up)
 	count = up->port.fifosize;
 	do {
 		serial_out(up, UART_TX, xmit->buf[xmit->tail]);
-		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-		up->port.icount.tx++;
+		uart_xmit_advance(&up->port, 1);
 		if (uart_circ_empty(xmit))
 			break;
 	} while (--count > 0);
-- 
2.30.2