[PATCH v2 0/4] Add AP power save support

[Johannes Berg]

On Mon, 2023-03-20 at 22:13 +0530, Maharaja Kennadyrajan wrote:
> AP power save feature is enabled when the driver and hardware
> supports. If the driver suppots this feature then driver will
> advertise this flag SUPPORTS_AP_PS to enable the AP power save
> in mac80211.
> 
> AP goes into the power save mode, if no stations are connected
> and it will come out of power save as and when any of the station
> associate to it. Also, during the power save tx chain mask is
> reduced to 1x1 until the any station connects with more than
> 1x1 chain mask.
> 

All of that seems entirely transparent, similar to how mac80211 today
reduces bandwidth of the AP interface (min_def in a chandef) - what's
the point of doing all this infrastructure to make it configurable then?
Why not always have it, and perhaps make some debugfs to turn it off for
debugging/experiments?

johannes