diff options
| author |   Daniel Drake <dsd@laptop.org> | 2012-03-14 22:34:33 +0000 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2012-03-15 13:46:50 -0400 |
| commit | 377526578f2c343ea281a918b18ece1fca65005c (patch) | |
| tree | f7968ebd2156f6471fafee8ee6c7c5e6b76383a3 /drivers/net/wireless/libertas/cfg.c | |
| parent | ath9k_hw: remove unused initvals (diff) | |
| download | linux-dev-377526578f2c343ea281a918b18ece1fca65005c.tar.xz linux-dev-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/cfg.c')
| -rw-r--r-- | drivers/net/wireless/libertas/cfg.c | 37 |
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, |