From: Yoni Divinsky <yoni.divinsky@xxxxxx>
The get survey op expects the low level driver to report
the noise level for a a given channel.
The noise calculated in wlcore is (rssi-snr/2), but since
the snr reported by the FW is a derivative from the rssi
this calculation is useless, and should not be reported
to the user space.
Reporting incorrect noise, results in the wpa_supplicant
miscalculating the roaming candidate priority, thus causing
a situation where an AP with a lower rssi level would be
chosen over a better AP.
Signed-off-by: Yoni Divinsky <yoni.divinsky@xxxxxx>
Signed-off-by: Luciano Coelho <coelho@xxxxxx>
---
drivers/net/wireless/ti/wlcore/main.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 3279a94..a7c5e32 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -4108,16 +4108,13 @@ out:
static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
struct survey_info *survey)
{
- struct wl1271 *wl = hw->priv;
struct ieee80211_conf *conf = &hw->conf;
if (idx != 0)
return -ENOENT;
survey->channel = conf->channel;
- survey->filled = SURVEY_INFO_NOISE_DBM;
- survey->noise = wl->noise;
-
+ survey->filled = 0;
return 0;
}
--
1.7.10
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