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mac80211: reject software RSSI CQM with beacon filtering

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When beacon filtering is enabled the mac80211 software implementation
for RSSI CQM cannot work as beacons will not be available. Rather than
accepting such a configuration without proper effect, reject it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2015-08-28 10:44:20 +02:00
parent 52a45f38ca
commit ef9be10c8c
1 changed files with 4 additions and 0 deletions
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4
net/mac80211/cfg.c
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@ -2468,6 +2468,10 @@ static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
rssi_hyst == bss_conf->cqm_rssi_hyst)
return 0;
if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
!(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
return -EOPNOTSUPP;
bss_conf->cqm_rssi_thold = rssi_thold;
bss_conf->cqm_rssi_hyst = rssi_hyst;