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.

BR, Thinh