serial: sunhv: 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/20221019091151.6692-36-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/sunhv.c b/drivers/tty/serial/sunhv.c
index 1938ba5e98c0eee0bed60379b59c83ea76fce577..16c746a632587ec2f08484be24ef42fc81eaeeac 100644 (file)
--- a/drivers/tty/serial/sunhv.c
+++ b/drivers/tty/serial/sunhv.c
@@ -47,8 +47,7 @@ static void transmit_chars_putchar(struct uart_port *port, struct circ_buf *xmit
                if (status != HV_EOK)
                        break;
 
-               xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-               port->icount.tx++;
+               uart_xmit_advance(port, 1);
        }
 }
 
@@ -63,8 +62,7 @@ static void transmit_chars_write(struct uart_port *port, struct circ_buf *xmit)
                status = sun4v_con_write(ra, len, &sent);
                if (status != HV_EOK)
                        break;
-               xmit->tail = (xmit->tail + sent) & (UART_XMIT_SIZE - 1);
-               port->icount.tx += sent;
+               uart_xmit_advance(port, sent);
        }
 }