On Mon, Apr 10, 2017 at 05:15:13PM +0300, Felipe Balbi wrote:
> From: Janusz Dziedzic <januszx.dziedzic@xxxxxxxxx>
>
> commit de288e36fe33f7e06fa272bc8e2f85aa386d99aa upstream.
>
> In the case of bounced ep0 requests, we must delay DMA operation until
> after ->complete() otherwise we might overwrite contents of req->buf.
>
> This caused problems with RNDIS gadget.
>
> Cc: <stable@xxxxxxxxxxxxxxx>
> Fixes: d62145929992 ("usb: dwc3: gadget: always unmap EP0 requests")
> Signed-off-by: Janusz Dziedzic <januszx.dziedzic@xxxxxxxxx>
> Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
> ---
>
> Note that this commit needs to be backported to all kernels where
> d62145929992 was backported.
This patch only applied to 4.10-stable. It should go also to at least
4.4 and 4.9-stable, but it does not apply. Can you provide a backport
for those kernels as well?
thanks,
greg k-h