Re: [PATCH] usb: dwc3: gadget: delay unmap of bounced requests

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On Mon, Apr 10, 2017 at 04:48:41PM +0300, Felipe Balbi wrote:
> From: Janusz Dziedzic <januszx.dziedzic@xxxxxxxxx>
> 
> commit d62145929992f331fdde924d5963ab49588ccc7d 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.

How can you backport this patch to everywhere it was backported to
already?  :)

I think one of the git commit ids is wrong here...

thanks,

greg k-h



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