On Fri, 2017-09-08 at 10:43 +0200, Richard Schütz wrote: > > Hmm, I guess technically you're correct, since 11b added what's now > > Clause 16 (was Clause 18 at the time), and that has all of them > > mandatory? But perhaps this was actually intended for Clause 15 > > compatibility? > > Compatibility in what way? Well, realistically there are only three users of this information: * ieee80211_mandatory_rates(), used for supported station rates if we don't know anything better in IBSS (and OCB) and for basic rates in mesh; * basic rates in IBSS (__cfg80211_join_ibss); * duration calculation in ieee80211_duration, but that's just a fallback So I guess it's now pretty unlikely that anyone would have a pre-11b device, so it would make sense to actually make this change. johannes
