Re: [PATCH] usb: dwc3: gadget: Remove incomplete check

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Felipe,

Felipe Balbi wrote:
> Hi,
>
> Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx> writes:
>> We only care to resume transfer for SG because the request maybe
>> partially completed. dwc3_gadget_ep_request_completed() doesn't check
>> that of a request, at least not fully.
>>
>> 1) It doesn't account for OUT direction.
>> 2) It doesn't account for isoc. For isoc, a request maybe completed with
>> partial data.
> I would rather fix the function for these cases instead of removing it
> completely. While at that, also move the req->num_pending_sgs check
> inside dwc3_gadget_ep_request_completed()
>

If we want to keep this function, the only thing this function does is 
to check req->num_pending_sgs. We'd only resume the request because 
there are pending TRBs from SG not completed yet. If all the TRBs of a 
request are completed, regardless if all the data are received/sent, we 
don't queue them again. Do you still want to have this function?

BR,
Thinh




[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux