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openwrt-xburst/package/mac80211/patches/570-ath9k_fix_adhoc_beacons.patch

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--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -351,9 +351,7 @@ void ath_beacon_tasklet(unsigned long da
struct ath_buf *bf = NULL;
struct ieee80211_vif *vif;
int slot;
- u32 bfaddr, bc = 0, tsftu;
- u64 tsf;
- u16 intval;
+ u32 bfaddr, bc = 0;
/*
* Check if the previous beacon has gone out. If
@@ -388,17 +386,27 @@ void ath_beacon_tasklet(unsigned long da
* on the tsf to safeguard against missing an swba.
*/
- intval = cur_conf->beacon_interval ? : ATH_DEFAULT_BINTVAL;
- tsf = ath9k_hw_gettsf64(ah);
- tsf += TU_TO_USEC(ah->config.sw_beacon_response_time);
- tsftu = TSF_TO_TU((tsf * ATH_BCBUF) >>32, tsf * ATH_BCBUF);
- slot = (tsftu % (intval * ATH_BCBUF)) / intval;
- vif = sc->beacon.bslot[slot];
+ if (ah->opmode == NL80211_IFTYPE_AP) {
+ u16 intval;
+ u32 tsftu;
+ u64 tsf;
+
+ intval = cur_conf->beacon_interval ? : ATH_DEFAULT_BINTVAL;
+ tsf = ath9k_hw_gettsf64(ah);
+ tsf += TU_TO_USEC(ah->config.sw_beacon_response_time);
+ tsftu = TSF_TO_TU((tsf * ATH_BCBUF) >>32, tsf * ATH_BCBUF);
+ slot = (tsftu % (intval * ATH_BCBUF)) / intval;
+ vif = sc->beacon.bslot[slot];
+
+ ath_dbg(common, ATH_DBG_BEACON,
+ "slot %d [tsf %llu tsftu %u intval %u] vif %p\n",
+ slot, tsf, tsftu / ATH_BCBUF, intval, vif);
+ } else {
+ slot = 0;
+ vif = sc->beacon.bslot[slot];
+ }
- ath_dbg(common, ATH_DBG_BEACON,
- "slot %d [tsf %llu tsftu %u intval %u] vif %p\n",
- slot, tsf, tsftu / ATH_BCBUF, intval, vif);
bfaddr = 0;
if (vif) {