linux-kernel - Re: [PATCH wireless-next 0/3] Allow non-MLD sta to roam between MLD AP links

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Message-ID: <4d50e8de5750cd6b915f209b9d3ab26f34efda99.camel@sipsolutions.net>
Date: Tue, 08 Jul 2025 11:00:26 +0200
From: Johannes Berg <johannes@...solutions.net>
To: Remi Pommarel <repk@...plefau.lt>, linux-wireless@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH wireless-next 0/3] Allow non-MLD sta to roam between MLD
 AP links

On Fri, 2025-06-27 at 22:46 +0200, Remi Pommarel wrote:
> 
> To fix that, the first patch of this serie does not report management
> frames with a link id (link id == -1) and let hostapd do the freq to
> link conversion to respond. This relies on the fact that hostapd knows
> how to do this freq to link conversion which is needed anyway for the
> first pre-association scan. We can also do this conversion in mac80211
> instead if it is deem preferrable.

You should probably send patches as RFC if you have things like that.

> This serie along with the mentionned hostapd patch allowes a non-MLD
> STA to successfully roam between several MLD AP links with hwsim.

Maybe so, but does anything _else_ MLO related still work? Surely it
cannot, given you just unconditionally made it no longer have a link ID
... And indeed most of the EHT hwsim tests no longer pass, and even
crash the kernel.

Since you clearly were running hwsim tests, please run the existing ones
too :)

Also, I suspect that https://lore.kernel.org/linux-
wireless/20250630084119.3583593-1-quic_sarishar@...cinc.com/ might go
some way towards fixing this as well?

johannes