[v2,1/2] usb: dwc3: gadget: Set maxpacket size for ep0 IN

[Felipe Balbi <balbi@kernel.org>]

Hi,

Thinh Nguyen <Thinh.Nguyen@synopsys.com> writes:
> Hi,
>
> On 1/11/2018 12:16 AM, Felipe Balbi wrote:
>> 
>> Hi,
>> 
>> Thinh Nguyen <Thinh.Nguyen@synopsys.com> writes:
>>> There are 2 control endpoint structures for DWC3. However, the driver
>>> only updates the OUT direction control endpoint structure during
>>> ConnectDone event. DWC3 driver needs to update the endpoint max packet
>>> size for control IN endpoint as well. If the max packet size is not
>>> properly set, then the driver will incorrectly calculate the data
>>> transfer size and fail to send ZLP for HS/FS 3-stage control read
>>> transfer.
>>>
>>> The fix is simply to update the max packet size for the ep0 IN direction
>>> during ConnectDone event.
>>>
>>> Cc: stable@vger.kernel.org
>>> Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
>> 
>> missing Fixes tag
>
> This bug has been there since the beginning. There's no particular 
> commit that it fixes.

yes there is; the very first one ;-)