linux-kernel - Re: [PATCH v3 5/5] usb: serial: implement CMSPAR for F81232

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Date:	Wed, 28 Jan 2015 15:31:07 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Peter Hung <hpeter@...il.com>, johan@...nel.org
CC:	gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, tom_tsai@...tek.com.tw,
	peter_hong@...tek.com.tw,
	Peter Hung <hpeter+linux_kernel@...il.com>
Subject: Re: [PATCH v3 5/5] usb: serial: implement CMSPAR for F81232

Hello.

On 1/28/2015 8:58 AM, Peter Hung wrote:

> This patch implement CMSPAR in set_termios,
> and fix some warnning from checkpatch.pl

     Please don't try to do 2 unrelated things in one patch.

> Signed-off-by: Peter Hung <hpeter+linux_kernel@...il.com>
> ---
>   drivers/usb/serial/f81232.c | 21 +++++++++++++++------
>   1 file changed, 15 insertions(+), 6 deletions(-)

> diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
> index 11a236b..79592d6 100644
> --- a/drivers/usb/serial/f81232.c
> +++ b/drivers/usb/serial/f81232.c
[...]
> @@ -361,12 +361,21 @@ static void f81232_set_termios(struct tty_struct *tty,
>
>
>   	if (cflag & PARENB) {
> -		if (cflag & PARODD)
> -			new_lcr |= UART_LCR_PARITY; /* odd */
> -		else
> -			new_lcr |= SERIAL_EVEN_PARITY; /* even */
> +		if (cflag & CMSPAR) {
> +			if (cflag & PARODD)
> +				new_lcr |= (UART_LCR_PARITY | UART_LCR_SPAR);
> +			else
> +				new_lcr |= (SERIAL_EVEN_PARITY
> +							| UART_LCR_SPAR);
> +		} else {
> +			if (cflag & PARODD)
> +				new_lcr |= UART_LCR_PARITY; /* odd */
> +			else
> +				new_lcr |= SERIAL_EVEN_PARITY; /* even */
> +		}
>   	}
>
> +

    Not needed at all.

>   	if (cflag & CSTOPB)
>   		new_lcr |= UART_LCR_STOP;
>   	else
> @@ -445,7 +454,7 @@ static int f81232_open(struct tty_struct *tty, struct usb_serial_port *port)
>
>   	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
>   	if (result) {
> -		dev_err(&port->dev, "failed submitting interrupt urb, error %d\n",
> +		dev_err(&port->dev, "failed submitting urb, error %d\n",

    What are you fixing here?

WBR, Sergei

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