How to get 802.11r (Fast Transition) working on Qualcomms fork of OpenWRT 15.05. In this case on a Gl-inet router
Unfortunately just setting the 4 lines as detailed in this reddit post almost works, however hostapd fails to start due to the auto generated r0kh strings having incorrect formatting. The sypmtom was that the network would appear as open and devices would fail to connect.
As far as I can tell at the time of writing, this r0khs are unecessary with WPA2-PSK forms of authentication if ft_psk_generate_local=1 is enabled in hostapd. So I commented out lines 688 - 690 of /lib/wifi/hostapd.sh