From: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Date: Wed, 19 Oct 2022 09:11:14 +0000 (+0300)
Subject: serial: 8250: Use uart_xmit_advance()
X-Git-Tag: v6.2-rc1~68^2~81
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=051ef7c8d81ff25b843afb661776e0a77a4f9374;p=thirdparty%2Flinux.git

serial: 8250: Use uart_xmit_advance()

Take advantage of the new uart_xmit_advance() helper.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221019091151.6692-8-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index fe8662cd94024..b94e60e753265 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1842,8 +1842,7 @@ void serial8250_tx_chars(struct uart_8250_port *up)
 			 */
 			serial_in(up, UART_SCR);
 		}
-		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-		port->icount.tx++;
+		uart_xmit_advance(port, 1);
 		if (uart_circ_empty(xmit))
 			break;
 		if ((up->capabilities & UART_CAP_HFIFO) &&