serial: cpm_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/20221019091151.6692-14-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index b4369ed45ae2d101db021e5adca4710d62ba2b51..5565f302cb2126907436a093f912a1e010efb5dc 100644 (file)
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -684,8 +684,7 @@ static int cpm_uart_tx_pump(struct uart_port *port)
                p = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo);
                while (count < pinfo->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;