serial: sccnxp: Use uart_xmit_advance()

Take advantage of the new uart_xmit_advance() helper.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221019091151.6692-31-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index dd98509f52e5a866e175f87de8b1723d0b1eafb2..7df6878226340d263528e06eea0b925f79abaf4e 100644 (file)
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -468,8 +468,7 @@ static void sccnxp_handle_tx(struct uart_port *port)
                        break;
 
                sccnxp_port_write(port, SCCNXP_THR_REG, xmit->buf[xmit->tail]);
-               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)