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path: root/drivers/net/wireless/ath/ath9k/beacon.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/beacon.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/beacon.c21
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index d4d8ceced89..0174cdb65a8 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -496,7 +496,7 @@ static void ath_beacon_config_ap(struct ath_softc *sc,
u32 nexttbtt, intval;
/* NB: the beacon interval is kept internally in TU's */
- intval = TU_TO_USEC(conf->beacon_interval & ATH9K_BEACON_PERIOD);
+ intval = TU_TO_USEC(conf->beacon_interval);
intval /= ATH_BCBUF; /* for staggered beacons */
nexttbtt = intval;
@@ -543,7 +543,7 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
}
memset(&bs, 0, sizeof(bs));
- intval = conf->beacon_interval & ATH9K_BEACON_PERIOD;
+ intval = conf->beacon_interval;
/*
* Setup dtim and cfp parameters according to
@@ -652,22 +652,13 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
- u32 tsf, delta, intval, nexttbtt;
+ u32 tsf, intval, nexttbtt;
ath9k_reset_beacon_status(sc);
- tsf = ath9k_hw_gettsf32(ah) + TU_TO_USEC(FUDGE);
- intval = TU_TO_USEC(conf->beacon_interval & ATH9K_BEACON_PERIOD);
-
- if (!sc->beacon.bc_tstamp)
- nexttbtt = tsf + intval;
- else {
- if (tsf > sc->beacon.bc_tstamp)
- delta = (tsf - sc->beacon.bc_tstamp);
- else
- delta = (tsf + 1 + (~0U - sc->beacon.bc_tstamp));
- nexttbtt = tsf + intval - (delta % intval);
- }
+ intval = TU_TO_USEC(conf->beacon_interval);
+ tsf = roundup(ath9k_hw_gettsf32(ah) + TU_TO_USEC(FUDGE), intval);
+ nexttbtt = tsf + intval;
ath_dbg(common, ATH_DBG_BEACON,
"IBSS nexttbtt %u intval %u (%u)\n",