[PATCH 01/44] serial: dz: Use uart_xmit_advance()

[Ilpo Järvinen]

Take advantage of the new uart_xmit_advance() helper.

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

diff --git a/drivers/tty/serial/dz.c b/drivers/tty/serial/dz.c
index 829b452daee9..6b7ed7f2f3ca 100644
--- a/drivers/tty/serial/dz.c
+++ b/drivers/tty/serial/dz.c
@@ -279,9 +279,8 @@ static inline void dz_transmit_chars(struct dz_mux *mux)
 	 * so we go one char at a time) :-<
 	 */
 	tmp = xmit->buf[xmit->tail];
-	xmit->tail = (xmit->tail + 1) & (DZ_XMIT_SIZE - 1);
 	dz_out(dport, DZ_TDR, tmp);
-	dport->port.icount.tx++;
+	uart_xmit_advance(&dport->port, 1);
 
 	if (uart_circ_chars_pending(xmit) < DZ_WAKEUP_CHARS)
 		uart_write_wakeup(&dport->port);
-- 
2.30.2