linux-kernel - [PATCH 08/44] serial: pl011: Use uart_xmit

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Date:   Wed, 19 Oct 2022 12:11:15 +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>,
        Russell King <linux@...linux.org.uk>,
        linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 08/44] serial: pl011: 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/amba-pl011.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 5cdced39eafd..6d8552506091 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -677,8 +677,7 @@ static int pl011_dma_tx_refill(struct uart_amba_port *uap)
 	 * Now we know that DMA will fire, so advance the ring buffer
 	 * with the stuff we just dispatched.
 	 */
-	xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);
-	uap->port.icount.tx += count;
+	uart_xmit_advance(&uap->port, count);
 
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
 		uart_write_wakeup(&uap->port);
-- 
2.30.2