From 8ec6d97871f37e4743678ea4a455bd59580aa0f4 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 28 Aug 2015 10:52:53 +0200
Subject: [PATCH] mac80211: fix driver RSSI event calculations
The ifmgd->ave_beacon_signal value cannot be taken as is for
comparisons, it must be divided by since it's represented
like that for better accuracy of the EWMA calculations. This
would lead to invalid driver RSSI events. Fix the used value.
Fixes: 615f7b9bb1f8 ("mac80211: add driver RSSI threshold events")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
net/mac80211/mlme.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index ce01cd3c82247..79cfc2b35ef0c 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3380,7 +3380,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
if (ifmgd->rssi_min_thold != ifmgd->rssi_max_thold &&
ifmgd->count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) {
- int sig = ifmgd->ave_beacon_signal;
+ int sig = ifmgd->ave_beacon_signal / 16;
int last_sig = ifmgd->last_ave_beacon_signal;
struct ieee80211_event event = {
.type = RSSI_EVENT,
--
2.30.2