[PATCH 37/44] serial: sunsab: 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/sunsab.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c
index 99608b2a2b74..94db67f21abf 100644
--- a/drivers/tty/serial/sunsab.c
+++ b/drivers/tty/serial/sunsab.c
@@ -266,8 +266,7 @@ static void transmit_chars(struct uart_sunsab_port *up,
 	for (i = 0; i < up->port.fifosize; i++) {
 		writeb(xmit->buf[xmit->tail],
 		       &up->regs->w.xfifo[i]);
-		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;
 	}
@@ -453,8 +452,7 @@ static void sunsab_start_tx(struct uart_port *port)
 	for (i = 0; i < up->port.fifosize; i++) {
 		writeb(xmit->buf[xmit->tail],
 		       &up->regs->w.xfifo[i]);
-		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;
 	}
-- 
2.30.2