> From: Johannes Berg [mailto:johannes@xxxxxxxxxxxxxxxx] > Sent: vrijdag 28 oktober 2011 10:01 > > On Fri, 2011-10-28 at 00:48 -0700, Arend Van Spriel wrote: > > > Sent: donderdag 27 oktober 2011 21:33 > > > From: Johannes Berg <johannes.berg@xxxxxxxxx> > > > > > > For probe responses it can be useful to not wait for ACK > > > to save airtime, so allow userspace to request not waiting > > > with a new nl80211 flag. > > > > > > Since mac80211 needs to be updated for the new function > > > prototype anyway implement it right away -- it's just a > > > few lines of code. > > > I would expect this to affect the duration field in the > > 802.11 header to indicate the shorter use of the medium. > > Going through your patch I am not sure this is done. > > Hmmm. You're right, but that's something we already need to fix in many > cases -- as the duration field is overwritten by most hardware these > days, we haven't always maintained it very well. If the station still does the ACK we should not touch the duration field in this case (see my reply to Helmut). > Your driver seems to be the exception to this -- maybe you can look > into > fixing up the duration calculations? Also for 11n which isn't taken > into > account at all today. > > johannes > I will see whether we can contribute to mac80211 for this. But there are only two of us working on this and there are some more items on our todo list. When we will address it we sure will take 11n into account. Gr. AvS ��.n��������+%������w��{.n�����{���zW����ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
