[7/7] mac80211: Ensure power-level set properly for scanning.

Commit Message

Ben Greear Feb. 7, 2011, 9:44 p.m. UTC

None

Patch

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 86562ce..e7eb2cf 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -199,7 +199,8 @@  int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 		changed |= IEEE80211_CONF_CHANGE_SMPS;
 	}
 
-	if (scan_chan)
+	if ((local->scanning & SCAN_SW_SCANNING) ||
+	    (local->scanning & SCAN_HW_SCANNING))
 		power = chan->max_power;
 	else
 		power = local->power_constr_level ?
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 1f277c9..ab8d2c6 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -307,11 +307,15 @@  static void __ieee80211_scan_completed_finish(struct ieee80211_hw *hw,
 	mutex_lock(&local->mtx);
 	on_oper_chan = ieee80211_cfg_on_oper_channel(local);
 
+	WARN_ON(local->scanning & (SCAN_SW_SCANNING | SCAN_HW_SCANNING));
+
 	if (was_hw_scan || !on_oper_chan) {
 		if (WARN_ON(local->scan_channel))
 			local->scan_channel = NULL;
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
-	}
+	} else
+		/* Set power back to normal operating levels. */
+		ieee80211_hw_config(local, 0);
 
 	if (!was_hw_scan) {
 		bool on_oper_chan2;
@@ -434,6 +438,9 @@  static int ieee80211_start_sw_scan(struct ieee80211_local *local)
 
 	ieee80211_configure_filter(local);
 
+	/* We need to set power level at maximum rate for scanning. */
+	ieee80211_hw_config(local, 0);
+
 	ieee80211_queue_delayed_work(&local->hw,
 				     &local->scan_work,
 				     IEEE80211_CHANNEL_TIME);