From 4f1a5a4b62c5335aafd5830866320c8918103a3a Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 29 Sep 2010 17:15:28 +0200
Subject: [PATCH] ath9k: do not return default noise floor values via survey
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/ath/ath9k/main.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index a13387882636..fcba402d5a1e 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2004,15 +2004,17 @@ static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
struct ath_wiphy *aphy = hw->priv;
struct ath_softc *sc = aphy->sc;
struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_conf *conf = &hw->conf;
if (idx != 0)
return -ENOENT;
survey->channel = conf->channel;
- survey->filled = SURVEY_INFO_NOISE_DBM;
- survey->noise = common->ani.noise_floor;
+ survey->filled = 0;
+ if (ah->curchan && ah->curchan->noisefloor) {
+ survey->filled |= SURVEY_INFO_NOISE_DBM;
+ survey->noise = ah->curchan->noisefloor;
+ }
return 0;
}