iwlwifi: mvm: Avoid signal based decisions if ave beacon RSSI is 0

If for some reason statistics notification received from the firmware
reports 0 in average beacon RSSI value, then skip it and avoid signal
based decisions.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index 78ec7db64ba5..d6314ddf57b5 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -478,6 +478,11 @@ static void iwl_mvm_stat_iterator(void *_data, u8 *mac,
         if (vif->type != NL80211_IFTYPE_STATION)
                 return;
 
+        if (sig == 0) {
+                IWL_DEBUG_RX(mvm, "RSSI is 0 - skip signal based decision\n");
+                return;
+        }
+
         mvmvif->bf_data.ave_beacon_signal = sig;
 
         /* BT Coex */