[PATCH] wifi: ath11k: modify the calculation of the average signal strength in station mode

[Lingbo Kong]

Currently, the calculation of the average signal strength in station mode
is incorrect.

This is because before calculating the average signal strength, ath11k need
to determine whether the hardware and firmware support db2dbm, if the
hardware and firmware support db2dbm, do not need to add noise floor,
otherwise, need to add noise floor.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Lingbo Kong <quic_lingbok at quicinc.com>
---
 drivers/net/wireless/ath/ath11k/mac.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index a6a37d67a50a..1f9cf7a42ba8 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -8976,8 +8976,11 @@ static void ath11k_mac_op_sta_statistics(struct ieee80211_hw *hw,
 		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
 	}
 
-	sinfo->signal_avg = ewma_avg_rssi_read(&arsta->avg_rssi) +
-		ATH11K_DEFAULT_NOISE_FLOOR;
+	sinfo->signal_avg = ewma_avg_rssi_read(&arsta->avg_rssi);
+
+	if (!db2dbm)
+		sinfo->signal_avg += ATH11K_DEFAULT_NOISE_FLOOR;
+
 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
 }
 

base-commit: 7a5ed5a3801e9b6cf7bafbb0a05c70cef620b22a
-- 
2.34.1