bizarre network problem on kernel 6.6.4

[Kalle Valo]

Fourhundred Thecat <400thecat at ik.me> writes:

>>>> But I tried checking out linux kernel git repository, switched to tag
>>>> 6.6. and looked inside drivers/net/wireless/ath/ath11k trying to spot
>>>> any change. But git log shows last change on 2023-08-30, whereas kernel
>>>> 6.6.4 was released few days ago
>>>
>>> I assume you were looking at Torvalds' tree only. The release 6.6.4
>>> means that you are using a stable release which are in linux-stable
>>> tree, the gentoo doc above should help more.
>> 
>> FWIW it seems that the only changes to ath11k have been trivial:
>> 
>> % git log --oneline v6.6.1..v6.6.4 -- drivers/net/wireless/ath/ath11k/
>> e83246ecd3b1 wifi: ath11k: fix gtk offload status event locking
>> 69cede2a5a5f wifi: ath11k: fix htt pktlog locking
>> 21ebb0aba580 wifi: ath11k: fix dfs radar event locking
>> c5b914528e55 wifi: ath11k: fix temperature event locking
>> 2d88afdac295 wifi: ath11k: fix Tx power value during active CAC
>> d412d0ef300f wifi: ath11k: fix boot failure with one MSI vector
>> % git remote -v
>> origin  git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
>> (fetch)
>> origin  git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
>> (push)
>> 
>> Suggest you follow the instructions at the following link and create a
>> kernel bug report:
>> https://wireless.wiki.kernel.org/en/users/drivers/ath11k/bugreport
>> 
>> Meanwhile I'll build and load 6.6.4 on my laptop.
>
> I have just tried new kernel 6.6.5 and everything works fine !!!
>
> so whatever was the cause, seems to have been fixed between 6.6.4 and 6.6.5
>
> any idea what was the issue?

Heh, for once something which is easy to answer :) The only change in
6.6.5 was this commit:

Revert "wifi: cfg80211: fix CQM for non-range use"

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.6.y&id=9099d0682462e8664c8cbbe8989de65e50f62b17

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