Re: [RFC] mac80211: clean up frame receive handling

quoted

I think in theory all eapol frames are sent to the PAE group address,
but I have no idea which of the checks would be more efficient. It seems
that the first could be optimised a lot because it's constant too...

They are not.. PAE group address is used for all EAPOL frames in
non-shared media LANs (e.g., wired Ethernet switch), but IEEE 802.11
uses the specific MAC address of the PAE since it is a shared media LAN
(i.e., the frames are between the unicast MAC address of the non-AP
STA/Supplicant and AP/Authenticator). 

If that's how it's specified, ok, but I think it's not strictly
necessary because the AP is addressed already by the BSSID, no?

If we end up having to drop the
PAE group addressed EAPOL frames in mac80211 anyway due to Linux
bridging code not doing this,

No, we don't. We have to drop "unicast to somebody else". Group
addressed frames are dropped just fine.

johannes