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authorFelix Fietkau <nbd@openwrt.org>2010-09-29 19:15:28 +0400
committerJohn W. Linville <linville@tuxdriver.com>2010-10-05 21:35:22 +0400
commit4f1a5a4b62c5335aafd5830866320c8918103a3a (patch)
tree0a48a03e76b90a75ce380de8ab1508f78c855429 /drivers
parentd9891c7804f27c5b0ea9eb51f42bf473b24338a0 (diff)
downloadlinux-4f1a5a4b62c5335aafd5830866320c8918103a3a.tar.xz
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c8
1 files 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;
}