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ath9k: Remove unnecessary tbtt assignment

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The next_tbtt variable in the scheduler is needed only
for GO/AP mode operation and is always read from the
NEXT_TBTT_TIMER in the HW. There is no need to store
the timestamp for received beacons.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan
2014-09-15 11:25:50 +05:30
committed by John W. Linville
parent 4214852ea1
commit a2b2860150
3 changed files with 5 additions and 6 deletions
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5
drivers/net/wireless/ath/ath9k/channel.c
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@@ -396,7 +396,6 @@ void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
break;
}
/*
* Clear the extend_absence flag if it had been
* set during the previous beacon transmission,
@@ -416,6 +415,7 @@ void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
avp->noa_duration = 0;
sc->sched.extend_absence = true;
}
/* Prevent wrap-around issues */
if (avp->noa_duration && tsf_time - avp->noa_start > BIT(30))
avp->noa_duration = 0;
@@ -606,10 +606,9 @@ void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
ath_chanctx_event(sc, NULL, ev);
}
void ath_chanctx_beacon_recv_ev(struct ath_softc *sc, u32 ts,
void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
enum ath_chanctx_event ev)
{
sc->sched.next_tbtt = ts;
ath_chanctx_event(sc, NULL, ev);
}