serial: linflexuart: 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/20221019091151.6692-16-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/fsl_linflexuart.c b/drivers/tty/serial/fsl_linflexuart.c
index 84e8153e54200f388520344b9ef55e8435af4cf6..6fc21b6684e6fe879bc075813af4af061d35008c 100644 (file)
--- a/drivers/tty/serial/fsl_linflexuart.c
+++ b/drivers/tty/serial/fsl_linflexuart.c
@@ -178,8 +178,7 @@ static inline void linflex_transmit_buffer(struct uart_port *sport)
 
        while (!uart_circ_empty(xmit)) {
                linflex_put_char(sport, xmit->buf[xmit->tail]);
-               xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-               sport->icount.tx++;
+               uart_xmit_advance(sport, 1);
        }
 
        if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)