3 files changed, 45 insertions, 12 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index f049ebc4a6aa..51419444834f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -217,7 +217,14 @@ static void iwl6000g2b_send_bt_config(struct iwl_priv *priv)
 	BUILD_BUG_ON(sizeof(iwl6000g2b_def_3w_lookup) !=
 			sizeof(bt_cmd.bt3_lookup_table));
 
-	if (!bt_coex_active) {
+	/*
+	 * Configure BT coex mode to "no coexistence" when the
+	 * user disabled BT coexistence, we have no interface
+	 * (might be in monitor mode), or the interface is in
+	 * IBSS mode (no proper uCode support for coex then).
+	 */
+	if (!bt_coex_active || !priv->vif ||
+	    priv->iw_mode == NL80211_IFTYPE_ADHOC) {
 		bt_cmd.flags = 0;
 	} else {
 		bt_cmd.flags = IWL6000G2B_BT_FLAG_CHANNEL_INHIBITION |
@@ -426,18 +433,23 @@ static void iwl6000g2b_bt_coex_profile_notif(struct iwl_priv *priv,
 			coex->uart_msg[3], coex->uart_msg[4], coex->uart_msg[5],
 			coex->uart_msg[6], coex->uart_msg[7]);
 
-	if (coex->bt_traffic_load != priv->bt_traffic_load) {
-		priv->bt_traffic_load = coex->bt_traffic_load;
+	priv->notif_bt_traffic_load = coex->bt_traffic_load;
 
-		queue_work(priv->workqueue, &priv->bt_traffic_change_work);
-	}
+	if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
+		if (coex->bt_traffic_load != priv->bt_traffic_load) {
+			priv->bt_traffic_load = coex->bt_traffic_load;
 
-	/* FIXME: add defines for this check */
-	priv->bt_sco_active = coex->uart_msg[3] & 1;
-	if (priv->bt_sco_active)
-		sco_cmd.flags |= IWL6000G2B_BT_SCO_ACTIVE;
-	iwl_send_cmd_pdu_async(priv, REPLY_BT_COEX_SCO,
-			       sizeof(sco_cmd), &sco_cmd, NULL);
+			queue_work(priv->workqueue,
+				   &priv->bt_traffic_change_work);
+		}
+
+		/* FIXME: add defines for this check */
+		priv->bt_sco_active = coex->uart_msg[3] & 1;
+		if (priv->bt_sco_active)
+			sco_cmd.flags |= IWL6000G2B_BT_SCO_ACTIVE;
+		iwl_send_cmd_pdu_async(priv, REPLY_BT_COEX_SCO,
+				       sizeof(sco_cmd), &sco_cmd, NULL);
+	}
 }
 
 void iwl6000g2b_rx_handler_setup(struct iwl_priv *priv)
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 4beddade7423..1921307a23b8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1872,6 +1872,16 @@ int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	if (err)
 		goto out_err;
 
+	if (priv->cfg->advanced_bt_coexist &&
+	    vif->type == NL80211_IFTYPE_ADHOC) {
+		/*
+		 * pretend to have high BT traffic as long as we
+		 * are operating in IBSS mode, as this will cause
+		 * the rate scaling etc. to behave as intended.
+		 */
+		priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
+	}
+
 	goto out;
 
  out_err:
@@ -1909,6 +1919,17 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 		}
 		memset(priv->bssid, 0, ETH_ALEN);
 	}
+
+	/*
+	 * When removing the IBSS interface, overwrite the
+	 * BT traffic load with the stored one from the last
+	 * notification, if any. If this is a device that
+	 * doesn't implement this, this has no effect since
+	 * both values are the same and zero.
+	 */
+	if (vif->type == NL80211_IFTYPE_ADHOC)
+		priv->bt_traffic_load = priv->notif_bt_traffic_load;
+
 	mutex_unlock(&priv->mutex);
 
 	if (scan_completed)
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 5d327b44533b..815ba0af94ce 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1362,7 +1362,7 @@ struct iwl_priv {
 #endif
 	};
 
-	u8 bt_traffic_load;
+	u8 bt_traffic_load, notif_bt_traffic_load;
 	bool bt_sco_active;
 	struct work_struct bt_traffic_change_work;