linux-kernel - [PATCH 18/44] serial: ip22zilog: Use uart_xmit

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Date:   Wed, 19 Oct 2022 12:11:25 +0300
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     linux-serial@...r.kernel.org, Greg KH <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>, linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 18/44] serial: ip22zilog: Use uart_xmit_advance()

Take advantage of the new uart_xmit_advance() helper.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 drivers/tty/serial/ip22zilog.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/ip22zilog.c b/drivers/tty/serial/ip22zilog.c
index dd0a8915ce4f..b1f27e168135 100644
--- a/drivers/tty/serial/ip22zilog.c
+++ b/drivers/tty/serial/ip22zilog.c
@@ -409,8 +409,7 @@ static void ip22zilog_transmit_chars(struct uart_ip22zilog_port *up,
 	ZSDELAY();
 	ZS_WSYNC(channel);
 
-	xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-	up->port.icount.tx++;
+	uart_xmit_advance(&up->port, 1);
 
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
 		uart_write_wakeup(&up->port);
@@ -609,8 +608,7 @@ static void ip22zilog_start_tx(struct uart_port *port)
 		ZSDELAY();
 		ZS_WSYNC(channel);
 
-		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-		port->icount.tx++;
+		uart_xmit_advance(port, 1);
 
 		if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
 			uart_write_wakeup(&up->port);
-- 
2.30.2