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ath9k: Fix offchannel duration calculation

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Currently, different units are used for handling
sc->offchannel.duration. In scan mode, it contains jiffies and in RoC
mode, milliseconds is used. This causes confusion since in
ath_chanctx_switch(), TU_TO_USEC is used to determine the offchannel
duration, resulting in incorrect values. Fix this by using jiffies in
both modes.

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 2014-09-05 08:03:13 +05:30 committed by John W. Linville
parent bd81533dbd
commit bb628eb9f0
1 changed files with 5 additions and 4 deletions
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9
drivers/net/wireless/ath/ath9k/channel.c
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@ -601,7 +601,7 @@ static void ath_chanctx_switch(struct ath_softc *sc, struct ath_chanctx *ctx,
if (sc->next_chan == &sc->offchannel.chan) {
sc->sched.offchannel_duration =
TU_TO_USEC(sc->offchannel.duration) +
jiffies_to_usecs(sc->offchannel.duration) +
sc->sched.channel_switch_time;
if (chandef) {
@ -688,7 +688,8 @@ void ath_offchannel_next(struct ath_softc *sc)
} else if (sc->offchannel.roc_vif) {
vif = sc->offchannel.roc_vif;
sc->offchannel.chan.txpower = vif->bss_conf.txpower;
sc->offchannel.duration = sc->offchannel.roc_duration;
sc->offchannel.duration =
msecs_to_jiffies(sc->offchannel.roc_duration);
sc->offchannel.state = ATH_OFFCHANNEL_ROC_START;
ath_chanctx_offchan_switch(sc, sc->offchannel.roc_chan);
} else {
@ -959,8 +960,8 @@ static void ath_offchannel_channel_change(struct ath_softc *sc)
break;
sc->offchannel.state = ATH_OFFCHANNEL_ROC_WAIT;
mod_timer(&sc->offchannel.timer, jiffies +
msecs_to_jiffies(sc->offchannel.duration));
mod_timer(&sc->offchannel.timer,
jiffies + sc->offchannel.duration);
ieee80211_ready_on_channel(sc->hw);
break;
case ATH_OFFCHANNEL_ROC_DONE: