On Tue, 2017-02-14 at 14:07 +0100, Arend Van Spriel wrote: > > No. But there was a size limit on how much older userspace could > > process before we did the splitting. > > I see. So basically adding stuff to (split_start == 0) is not wanted.
Correct. > Just trying to get a clear requirement/rule here. Do we (still) know > the exact size limit? No, I don't remember. It's pretty ancient versions of iw/wpa_s that weren't able to deal with it. There was also interaction with the allocations in the dump function in nl80211 code itself, but we made those pretty big already and userspace limits came into play iirc. johannes
