linux-kernel - [PATCH 26/44] serial: pmac_zilog: Use uart_xmit

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Message-Id: <20221019091151.6692-27-ilpo.jarvinen@linux.intel.com>
Date:   Wed, 19 Oct 2022 12:11:33 +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>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 26/44] serial: pmac_zilog: 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/pmac_zilog.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index fe2e4ec423f7..13668ffdb1e7 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -410,8 +410,7 @@ static void pmz_transmit_chars(struct uart_pmac_port *uap)
 	write_zsdata(uap, xmit->buf[xmit->tail]);
 	zssync(uap);
 
-	xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-	uap->port.icount.tx++;
+	uart_xmit_advance(&uap->port, 1);
 
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
 		uart_write_wakeup(&uap->port);
@@ -627,8 +626,7 @@ static void pmz_start_tx(struct uart_port *port)
 			return;
 		write_zsdata(uap, xmit->buf[xmit->tail]);
 		zssync(uap);
-		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(&uap->port);
-- 
2.30.2