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@xxxxxxxxxx>
---
drivers/net/wireless/libertas/cfg.c | 34 ----------------------------------
1 files changed, 0 insertions(+), 34 deletions(-)
diff --git a/drivers/net/wireless/libertas/cfg.c b/drivers/net/wireless/libertas/cfg.c
index b456a53..8ea15d3 100644
--- a/drivers/net/wireless/libertas/cfg.c
+++ b/drivers/net/wireless/libertas/cfg.c
@@ -1593,39 +1593,6 @@ 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 (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
*/
@@ -2024,7 +1991,6 @@ 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,
--
1.7.7.6
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
