Doru <gucea.doru@xxxxxxxxx> writes: > From: Doru Gucea <gucea.doru@xxxxxxxxx> > > Each time we receive a beacon we need to adjust the hardware > timers for next DTIM and next TBTT. > > Before this commit, the Power Save behaviour was incorrect. > The scenario was: > - STA receives a beacon from AP with TIM unset; > - mac80211 layers puts the chip to sleep; > - chip is woken up by mac80211's software timer reponsible for > beacon miss after 7 * beacon_interval period. > > Normally the chip should sleep at most DTIM period. This commit > configures hardware timers for waking up the chip correctly. > > More details on the wiki: > https://github.com/doru91/linux-stable/wiki/Single-Interface-Power-Save > > Signed-off-by: Doru Gucea <gucea.doru@xxxxxxxxx> > --- > drivers/net/wireless/ath/ath9k/htc_drv_main.c | 4 ++++ > net/mac80211/mlme.c | 6 ++++++ > 2 files changed, 10 insertions(+) [...] > --- a/net/mac80211/mlme.c > +++ b/net/mac80211/mlme.c > @@ -3536,6 +3536,12 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, > sdata->vif.bss_conf.sync_dtim_count = 0; > } > > + /* trigger hardware timers adjustment > + * this needs to be done before beacon filtering > + */ > + changed |= BSS_CHANGED_BEACON_INFO; > + ieee80211_bss_info_change_notify(sdata, changed); You shouldn't mix driver and mac80211 changes in the same patch, I suspect Johannes didn't even notice this change because of that. Create a new patchset with two patches, one for ath9k and another for mac80211. -- Kalle Valo
