Re: [PATCH wireless-next v2 00/16] wifi: Add Seamless Mobility Domain (SMD) AP support

[Johannes Berg <johannes@sipsolutions.net>]

On Thu, 2026-09-24 at 08:10 +0530, Pooventhiran G wrote:
> IEEE P802.11bn introduces the Seamless Mobility Domain (SMD) - a mobility
> domain uniquely identified by the SMD identifier MAC address - where
> a non-AP MLD that is associated to the SMD Management Entity (SMD-ME) can
> transition from its current AP MLD to a non-colocated target AP MLD
> without requiring reassociation via SMD BSS Transition (ST) procedure.
> 
> This series implements the nl80211, cfg80211, and mac80211 support for
> SMD BSS Transition in AP mode. Along with a summary of the ST procedure,
> the design of this series and patch structure are presented below.

OK I'm wondering ... more things:

   1. How is this supposed to update the DS correctly? mac80211 normally
      does this via cfg80211_send_layer2_update() and I don't think
      you're changing that, but then it's the wrong place?
      
   2. In the kernel here the state is the per-AP MLD state of the STA,
      not the SMD-ME state, so 4a isn't _really_ "AUTHORIZED", is it?
      Ties in with 1. though, I guess.
      
   3. I commented a few minutes ago about handling of 4a in rx.c, but
      now I'm beginning to think we also need to handle 4b/4c
      explicitly.
      
   4. Adding a station in 4a should have _something_ about powersave, at
      the very least some documentation that it must be done by drivers
      (and then perhaps also hwsim changes)?


johannes