Re: [PATCH wireless-next v2 11/16] wifi: cfg80211/mac80211: Handle UHR Link Reconfiguration frame

[Johannes Berg]

On Thu, 2026-09-24 at 08:10 +0530, Pooventhiran G wrote:
> A UHR Link Reconfiguration Request frame (ST Preparation or Execution)
> triggers SMD BSS Transition on the current AP MLD. Userspace needs
> reporting of the STA's dynamic context along with such frames so that
> the same can be transported to the target AP MLD for setting up the STA
> TX and RX queues.
> 
> Reserve a field in ieee80211_rx_status that enables drivers to attach
> the STA's dynamic context to the corresponding frame. Since the maximum
> possible context can grow too big, attach the pointer to the context to
> the frame. Add handling for UHR ST Preparation and Execution Request
> frames so that the associated context is propagated through cfg80211 and
> nl80211 for userspace reporting.
> 
> Signed-off-by: Pooventhiran G <pooventhiran.g@xxxxxxxxxxxxxxxx>
> ---
>  include/linux/ieee80211-uhr.h | 59 ++++++++++++++++++++++++++
>  include/net/cfg80211.h        | 13 ++++++
>  include/net/mac80211.h        | 10 ++++-
>  net/mac80211/ieee80211_i.h    |  2 +
>  net/mac80211/rx.c             | 96 +++++++++++++++++++++++++++++--------------

This change is big due to argument refactoring - better do that
separately.

Also, I think better to combine the whole series a bit differently with
cfg80211 APIs more isolated and then mac80211 implementation(s)

One thing I'm missing completely - which is why I was looking for the
rx.c changes - is handling of 4a substate frame limitations?

johannes