[PATCH] libertas: WE quality fixes

[Dan Williams]

Set IW_QUAL_DBM on updated quality values, and use real noise value to
calculate quality (fixes /proc/net/wireless display too).

Signed-off-by: Dan Williams <dcbw at redhat.com>

diff --git a/drivers/net/wireless/libertas/wlan_wext.c b/drivers/net/wireless/libertas/wlan_wext.c
index fbe370d..e03e57a 100644
--- a/drivers/net/wireless/libertas/wlan_wext.c
+++ b/drivers/net/wireless/libertas/wlan_wext.c
@@ -2108,7 +2108,7 @@ static struct iw_statistics *wlan_get_wi
 	PRINTM(INFO, "Signal Level = %#x\n", priv->wstats.qual.level);
 	PRINTM(INFO, "Noise = %#x\n", priv->wstats.qual.noise);
 
-	rssi = priv->wstats.qual.level - MRVDRV_NF_DEFAULT_SCAN_VALUE;
+	rssi = priv->wstats.qual.level - priv->wstats.qual.noise;
 	if (rssi < 15)
 		rssi_qual = rssi * POOR / 10;
 	else if (rssi < 20)
@@ -2152,7 +2152,7 @@ static struct iw_statistics *wlan_get_wi
 
 	/* Calculate quality */
 	priv->wstats.qual.qual = max(quality, (u32)100);
-	priv->wstats.qual.updated = IW_QUAL_ALL_UPDATED;
+	priv->wstats.qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
 	stats_valid = 1;
 
 out: