On Wed, 2009-05-13 at 00:13 +0200, Gábor Stefanik wrote: > On Tue, May 12, 2009 at 10:05 PM, Johannes Berg > <johannes@xxxxxxxxxxxxxxxx> wrote: > > There's this internal wifi_wme_noack_test variable that > > we use to set the QoS control if set. For one, it is > > unlikely that it is set. Secondly, if set it needs to > > influence the IEEE80211_TX_CTL_NO_ACK TX control flag, > > and finally we should also be able to set it at all, so > > make it available in debugfs. > > > > Signed-off-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx> > > --- > > net/mac80211/debugfs.c | 38 ++++++++++++++++++++++++++++++++++++++ > > net/mac80211/ieee80211_i.h | 1 + > > net/mac80211/tx.c | 5 ++++- > > net/mac80211/wme.c | 2 +- > > 4 files changed, 44 insertions(+), 2 deletions(-) > > > > --- wireless-testing.orig/net/mac80211/tx.c 2009-05-12 21:44:01.000000000 +0200 > > +++ wireless-testing/net/mac80211/tx.c 2009-05-12 22:03:26.000000000 +0200 > > @@ -1087,7 +1087,10 @@ __ieee80211_tx_prepare(struct ieee80211_ > > info->flags |= IEEE80211_TX_CTL_NO_ACK; > > } else { > > tx->flags |= IEEE80211_TX_UNICAST; > > - info->flags &= ~IEEE80211_TX_CTL_NO_ACK; > > + if (unlikely(local->wifi_wme_noack_test)) > > + info->flags |= IEEE80211_TX_CTL_NO_ACK; > > + else > > + info->flags &= ~IEEE80211_TX_CTL_NO_ACK; > > } > > While you are at it, why not clean up this code completely? Because I'm lazy. > IMHO the > unset-bit operations are useless, given that both TX_UNICAST and > TX_CTL_NO_ACK are initialized to zero at the beginning of > __ieee80211_tx_prepare. Probably. But it works, why change it :) > This also makes it possible to set > TX_CTL_NO_ACK in a TX handler, which is IMO much nicer (not to mention > that it significantly simplifies the work needed to support Radiotap's > TX flags once they land). That seems to serve only you ;) > (BTW should we implement the already-stable parts of TX flags now, or > is it a better idea to wait till it is final?) Wait until it's final please. johannes
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