Re: [PATCH v1 16/29] usb: dwc2: gadget: kill requests after disabling ep

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Hi,

On 12/21/2014 05:15 PM, Mian Yousaf Kaukab wrote:
> kill_all_requests() can flush the fifo. Call it after disabling the
> endpoint. Moreover, remove even the current IN request so that next
> IN request after s3c_hsotg_ep_enable can be properly handled.
> 
> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@xxxxxxxxx>
> ---
>  drivers/usb/dwc2/gadget.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
> index 031f7edc..4ccf59b 100644
> --- a/drivers/usb/dwc2/gadget.c
> +++ b/drivers/usb/dwc2/gadget.c
> @@ -2612,8 +2612,6 @@ static int s3c_hsotg_ep_disable(struct usb_ep *ep)
>  	epctrl_reg = dir_in ? DIEPCTL(index) : DOEPCTL(index);
>  
>  	spin_lock_irqsave(&hsotg->lock, flags);
> -	/* terminate all requests with shutdown */
> -	kill_all_requests(hsotg, hs_ep, -ESHUTDOWN, false);
>  
>  	hsotg->fifo_map &= ~(1<<hs_ep->fifo_index);
>  	hs_ep->fifo_index = 0;
> @@ -2630,6 +2628,9 @@ static int s3c_hsotg_ep_disable(struct usb_ep *ep)
>  	/* disable endpoint interrupts */
>  	s3c_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 0);
>  
> +	/* terminate all requests with shutdown */
> +	kill_all_requests(hsotg, hs_ep, -ESHUTDOWN, true);
> +
>  	spin_unlock_irqrestore(&hsotg->lock, flags);
>  	return 0;
>  }
> 

After this change function kill_all_requests() is always called with
second parameter = 'true', so we don't need to have this parameter anymore.

I have already sent patch making that change:
https://lkml.org/lkml/2014/12/16/135

Best regards,
Robert Baldyga
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