serial: ucc_uart: 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/20221019091151.6692-43-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 82cf14dd3d433f83a5b07c66b076622614cc4f68..b09b6496ee3ebe881d1d8603d26148ef82baf782 100644 (file)
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -372,8 +372,7 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port)
                p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
                while (count < qe_port->tx_fifosize) {
                        *p++ = xmit->buf[xmit->tail];
-                       xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-                       port->icount.tx++;
+                       uart_xmit_advance(port, 1);
                        count++;
                        if (xmit->head == xmit->tail)
                                break;