Re: [PATCH 10/10] staging: r8188eu: set pipe only once

[Michael Straube]

On 8/21/21 6:48 PM, Martin Kaiser wrote:
> Set the pipe for reading or writing in usbctrl_vendorreq only once.
> There's no need to set it again for every retry.
>
> This patch is an adaptation of commit 889ed8b5e374 ("staging: rtl8188eu:
> set pipe only once") for the new r8188eu driver.
>
> Signed-off-by: Martin Kaiser <martin@xxxxxxxxx>
> ---
>   drivers/staging/r8188eu/hal/usb_ops_linux.c | 15 ++++++++-------
>   1 file changed, 8 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/staging/r8188eu/hal/usb_ops_linux.c b/drivers/staging/r8188eu/hal/usb_ops_linux.c
> index 5408383ccec3..5a55ee38d7b8 100644
> --- a/drivers/staging/r8188eu/hal/usb_ops_linux.c
> +++ b/drivers/staging/r8188eu/hal/usb_ops_linux.c
> @@ -40,15 +40,16 @@ static int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u16 value, void *pdata,
>   		goto release_mutex;
>   	}
>   
> -	while (++vendorreq_times <= MAX_USBCTRL_VENDORREQ_TIMES) {
> -		memset(pIo_buf, 0, len);
> +	if (requesttype == REALTEK_USB_VENQT_READ)
> +		pipe = usb_rcvctrlpipe(udev, 0);/* read_in */
> +	else
> +		pipe = usb_sndctrlpipe(udev, 0);/* write_out */
>   
> -		if (requesttype == REALTEK_USB_VENQT_READ) {
> -			pipe = usb_rcvctrlpipe(udev, 0);/* read_in */
> -		} else {
> -			pipe = usb_sndctrlpipe(udev, 0);/* write_out */
> +	while (++vendorreq_times <= MAX_USBCTRL_VENDORREQ_TIMES) {
> +		if (requesttype == REALTEK_USB_VENQT_READ)
> +			memset(pIo_buf, 0, len);
> +		else
>   			memcpy(pIo_buf, pdata, len);
> -		}
>   
>   		status = usb_control_msg(udev, pipe, REALTEK_USB_VENQT_CMD_REQ,
>   					 requesttype, value, REALTEK_USB_VENQT_CMD_IDX,

Looks good to me.

Acked-by: Michael Straube <straube.linux@xxxxxxxxx>

Thanks,
Michael