[PATCH 61/76] wifi: nl80211: add EML/MLD capabilities to per-iftype capabilities

[Wen Gong]

On 8/11/2023 5:27 PM, Johannes Berg wrote:
> On Fri, 2023-08-11 at 17:24 +0800, Wen Gong wrote:
>
[...]
> OK, at least that answers the question what you'd want to do with it :)
>
>> For dynamic link change, it is another new topic, so I have not good advise
>> for that.😁
> But everyone's looking at that?
I see there hare some patches in mac80211/cfg80211 for dynamic link 
removal such as
"wifi: mac80211: Support link removal using Reconfiguration ML element". 
For link
removal, it does not effect the EML issue I said. Only link add 
operation without (re)assoc
(35.3.6 ML reconfiguration of IEEE P802.11be™/D3.2 disallow (re)assoc 
for link add)
will impact the EML issue I said. But I did not see dynamic link add 
patch now. Will
you also do the patches for dynamic link add without (re)assoc?
>
> Honestly I'm not even sure - and you might know better - what the EML
> capabilities matter for if you never enable EML.
>
> So almost feels like if you never send the EML OMN frame (thanks for the
> name!) the AP wouldn't really care, and that's something you could do
> very easily without changing it, i.e. you pretend that your 2.4 GHz
> actually has EML, you just never enable it in case 2.4 GHz is active?
Your advise maybe feasible. Then no change is needed in nl80211 here for 
the EML.
> johannes