linux-kernel - Re: [PATCH 19/44] serial: liteuart: Use uart_xmit

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Date:   Wed, 19 Oct 2022 10:59:45 -0400
From:   "Gabriel L. Somlo" <gsomlo@...il.com>
To:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Cc:     linux-serial@...r.kernel.org, Greg KH <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Karol Gugala <kgugala@...micro.com>,
        Mateusz Holenko <mholenko@...micro.com>,
        Joel Stanley <joel@....id.au>, linux-kernel@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: [PATCH 19/44] serial: liteuart: Use uart_xmit_advance()

On Wed, Oct 19, 2022 at 12:11:26PM +0300, Ilpo Järvinen wrote:
> Take advantage of the new uart_xmit_advance() helper.
> 
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
> ---
>  drivers/tty/serial/liteuart.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/tty/serial/liteuart.c b/drivers/tty/serial/liteuart.c
> index 4c0604325ee9..062812fe1b09 100644
> --- a/drivers/tty/serial/liteuart.c
> +++ b/drivers/tty/serial/liteuart.c
> @@ -136,8 +136,7 @@ static void liteuart_start_tx(struct uart_port *port)
>  	} else if (!uart_circ_empty(xmit)) {
>  		while (xmit->head != xmit->tail) {
>  			ch = xmit->buf[xmit->tail];
> -			xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
> -			port->icount.tx++;
> +			uart_xmit_advance(port, 1);

Acked-by: Gabriel Somlo <gsomlo@...il.com>

Thanks,
--Gabriel

>  			liteuart_putchar(port, ch);
>  		}
>  	}
> -- 
> 2.30.2
>