Re: [PATCH v2 2/3] usb: xhci-mtk: fix a short packet issue of gen1 isoc-in transfer

[Greg Kroah-Hartman]

On Fri, Dec 15, 2023 at 03:34:30PM +0800, Chunfeng Yun wrote:
> For Gen1 isoc-in transfer, host still send out unexpected ACK after device
> finish the burst with a short packet, this will cause an exception on the
> connected device, such as, a usb 4k camera.
> It can be fixed by setting rxfifo depth less than 3, prefer to use 2 here,
> the side-effect is that may cause performance drop about 10%, including
> bulk transfer.
> 
> Fixes: 926d60ae64a6 ("usb: xhci-mtk: modify the SOF/ITP interval for mt8195")
> Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
> ---
> v2:
> use 'rx-fifo-depth' property;
> add header file 'linux/bitfield.h' to avoid building error on some ARCH;
> ---


Hi,

This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
a patch that has triggered this response.  He used to manually respond
to these common problems, but in order to save his sanity (he kept
writing the same thing over and over, yet to different people), I was
created.  Hopefully you will not take offence and will fix the problem
in your patch and resubmit it so that it can be accepted into the Linux
kernel tree.

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