On Thu, 2011-09-29 at 11:27 +0200, Helmut Schaa wrote: > Allow injected unicast frames to be sent without having to wait > for an ACK. > > Signed-off-by: Helmut Schaa <helmut.schaa@xxxxxxxxxxxxxx> > --- > > Just in case you're interested in what's the intended purpose of this: > > Some clients are staying on scanned channels for a very short period of > time. hostapd sends out probe responses for each configured BSSID. Under > some circumstances I can see that the client already left the channel > while some probe responses are still sent out and thus retried. This > consumes quite some airtime. Commercial wireless APs (Aruba for example) > seem to disable retries for probe responses to mitigate such issues. Makes sense, but I wonder if we really should continue using radiotap :-) Maybe mgmt-tx in nl80211 would be appropriate. > @@ -1257,7 +1265,7 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, > tx->flags |= IEEE80211_TX_UNICAST; > if (unlikely(local->wifi_wme_noack_test)) > info->flags |= IEEE80211_TX_CTL_NO_ACK; > - else > + else if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) > info->flags &= ~IEEE80211_TX_CTL_NO_ACK; ?? johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
