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mac80211: reject software RSSI CQM with beacon filtering 

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) rssi_hyst == bss_conf->cqm_rssi_hyst)
return 0; 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_thold = rssi_thold;
bss_conf->cqm_rssi_hyst = rssi_hyst; bss_conf->cqm_rssi_hyst = rssi_hyst;