cfg80211: move TSF into IEs
While technically the TSF isn't an IE, it can be
necessary to distinguish between the TSF from a
beacon and a probe response, in particular in
order to know the next DTIM TBTT, as not all APs
are spec compliant wrt. TSF==0 being a DTIM TBTT
and thus the DTIM count needs to be taken into
account as well.
To allow this, move the TSF into the IE struct
so it can be known whence it came.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 40ce00c..51eca5a 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3667,6 +3667,7 @@
bool have_higher_than_11mbit;
int min_rate = INT_MAX, min_rate_index = -1;
struct ieee80211_supported_band *sband;
+ const struct cfg80211_bss_ies *ies;
sband = local->hw.wiphy->bands[cbss->channel->band];
@@ -3710,7 +3711,10 @@
/* set timing information */
sdata->vif.bss_conf.beacon_int = cbss->beacon_interval;
- sdata->vif.bss_conf.sync_tsf = cbss->tsf;
+ rcu_read_lock();
+ ies = rcu_dereference(cbss->ies);
+ sdata->vif.bss_conf.sync_tsf = ies->tsf;
+ rcu_read_unlock();
sdata->vif.bss_conf.sync_device_ts = bss->device_ts;
/* tell driver about BSSID, basic rates and timing */