Bug#996672: Sv: Bug#996672: SV: Bug#996672: linux-image-5.10.0-9-amd64: ite_cir floods syslog with receive overflow warning messages

[Salvatore Bonaccorso <carnil@debian.org>]

Control: tags -1 + upstream confirmed

Hi,

On Sat, Oct 23, 2021 at 10:50:43AM +0000, Björn Wiberg wrote:
> Hello again Salvatore!
> 
> I’ve been in touch with Sean Young regarding ite_cir and the
> ITE87080, and it appears that the problem might be caused by cheap
> hardware, exhibiting the problem of not recovering from a receive
> overflow unless reading out the FIFO buffer.
> 
> This was introduced in
> https://github.com/torvalds/linux/commit/28c7afb07ccfc0a939bb06ac1e7afe669901c65a#diff-469248a6db13b2310197808cca4dd41a36cc818a57fe15da07700e200c5d31c2
> where the buffer readout was skipped, and they will probably be
> pushing a fix
> (https://git.linuxtv.org/media_stage.git/commit/?id=fdc881783099c6343921ff017450831c8766d12a)
> upstream in due time.
> 
> Most probably, this will fix the issue for both NUC6s and NUC7s as
> well as newer versions.
> They all appear to be using ITE CIR transceivers (models ITE8704,
> ITE8708 and ITE8713 are listed in INF files inside Intel’s driver
> downloads for Windows).
> 
> So, I’ll just wait for now. 😊
> 
> Thanks again for your help!

Thanks for following up with the results. So this seems the same as in
https://bugs.debian.org/996672#27 . I can look if I can cherry-pick
this as well in the next upload.

Regards,
Salvatore