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authorDaniel Drake <dsd@laptop.org>2012-03-14 22:34:33 +0000
committerJohn W. Linville <linville@tuxdriver.com>2012-03-15 13:46:50 -0400
commit377526578f2c343ea281a918b18ece1fca65005c (patch)
treef7968ebd2156f6471fafee8ee6c7c5e6b76383a3 /drivers/net/wireless/libertas
parent783b732ac61dd6c653cc2367f389a6234db8cc16 (diff)
downloadblackbird-op-linux-377526578f2c343ea281a918b18ece1fca65005c.tar.gz
blackbird-op-linux-377526578f2c343ea281a918b18ece1fca65005c.zip
libertas: remove dump_survey implementation
libertas provides a dump_survey implementation based on reading of a RSSI value. However, this RSSI value is calculated based on the last received beacon from the associated AP - it is not a good way of surveying a channel in general, and even causes an error if the card is not associated to a network. As this is not appropriate as a survey, remove it. This fixes an issue where something in userspace is repeatedly calling site-survey during boot, resulting in many repeated errors as the RSSI value cannot be read before associating. Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/libertas')
-rw-r--r--drivers/net/wireless/libertas/cfg.c37
1 files changed, 0 insertions, 37 deletions
diff --git a/drivers/net/wireless/libertas/cfg.c b/drivers/net/wireless/libertas/cfg.c
index a7cd311cb1b7..3fa1ecebadfd 100644
--- a/drivers/net/wireless/libertas/cfg.c
+++ b/drivers/net/wireless/libertas/cfg.c
@@ -1631,42 +1631,6 @@ static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
/*
- * "Site survey", here just current channel and noise level
- */
-
-static int lbs_get_survey(struct wiphy *wiphy, struct net_device *dev,
- int idx, struct survey_info *survey)
-{
- struct lbs_private *priv = wiphy_priv(wiphy);
- s8 signal, noise;
- int ret;
-
- if (dev == priv->mesh_dev)
- return -EOPNOTSUPP;
-
- if (idx != 0)
- ret = -ENOENT;
-
- lbs_deb_enter(LBS_DEB_CFG80211);
-
- survey->channel = ieee80211_get_channel(wiphy,
- ieee80211_channel_to_frequency(priv->channel,
- IEEE80211_BAND_2GHZ));
-
- ret = lbs_get_rssi(priv, &signal, &noise);
- if (ret == 0) {
- survey->filled = SURVEY_INFO_NOISE_DBM;
- survey->noise = noise;
- }
-
- lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
- return ret;
-}
-
-
-
-
-/*
* Change interface
*/
@@ -2068,7 +2032,6 @@ static struct cfg80211_ops lbs_cfg80211_ops = {
.del_key = lbs_cfg_del_key,
.set_default_key = lbs_cfg_set_default_key,
.get_station = lbs_cfg_get_station,
- .dump_survey = lbs_get_survey,
.change_virtual_intf = lbs_change_intf,
.join_ibss = lbs_join_ibss,
.leave_ibss = lbs_leave_ibss,
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