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Re: [Qemu-devel] [PATCH] usb: xhci: break loop after ctrl transfer compl
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From: |
Gerd Hoffmann |
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Subject: |
Re: [Qemu-devel] [PATCH] usb: xhci: break loop after ctrl transfer complete |
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Date: |
Mon, 13 Feb 2017 14:28:12 +0100 |
On Mo, 2017-02-13 at 13:25 +0530, P J P wrote:
> From: Prasad J Pandit <address@hidden>
>
> xHCI controller emulator loops through the transfer ring to
> transfer control/data between host memory and device endpoints.
> It continues to do so after processing 'Status Stage' TD which
> is the last descriptor in control transfer.
That is perfectly fine. The guest is allowed to queue up multiple
requests.
> Add break to avoid
> infinite loop.
It's not that simple.
https://patchwork.ozlabs.org/patch/724484/
cheers,
Gerd