Hi all,

if you are seeing after boot of RPi3 a lot of messages *cfg80211: Calling CRDA to update world regulatory domain* followed then by a message *cfg80211: Exceeded CRDA call max attempts. Not calling CRDA* you might want to get rid of this warning message (as I wanted).

All you have to do is to install crda package (and dependencies like iw) which provides a database of frequency bands to be used for WiFi transmissions in certain countries/regions.

So just "yum install crda" and then "reboot". You should not see warnings anymore.

Maybe this will help somebody.

Jan