1 files changed, 8 insertions, 22 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 95ecf4eadf5f..72ae63f0072d 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -1271,12 +1271,15 @@ struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path
 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(tx->dev);
+	unsigned long flags;
 	if (test_and_clear_bit(IPOIB_FLAG_INITIALIZED, &tx->flags)) {
+		spin_lock_irqsave(&priv->lock, flags);
 		list_move(&tx->list, &priv->cm.reap_list);
 		queue_work(ipoib_workqueue, &priv->cm.reap_task);
 		ipoib_dbg(priv, "Reap connection for gid %pI6\n",
 			  tx->neigh->daddr + 4);
 		tx->neigh = NULL;
+		spin_unlock_irqrestore(&priv->lock, flags);
 	}
 }
 
@@ -1449,36 +1452,19 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
 	struct net_device *dev = to_net_dev(d);
-	struct ipoib_dev_priv *priv = netdev_priv(dev);
+	int ret;
 
 	if (!rtnl_trylock())
 		return restart_syscall();
 
-	/* flush paths if we switch modes so that connections are restarted */
-	if (IPOIB_CM_SUPPORTED(dev->dev_addr) && !strcmp(buf, "connected\n")) {
-		set_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
-		ipoib_warn(priv, "enabling connected mode "
-			   "will cause multicast packet drops\n");
-		netdev_update_features(dev);
-		rtnl_unlock();
-		priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM;
-
-		ipoib_flush_paths(dev);
-		return count;
-	}
+	ret = ipoib_set_mode(dev, buf);
 
-	if (!strcmp(buf, "datagram\n")) {
-		clear_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
-		netdev_update_features(dev);
-		dev_set_mtu(dev, min(priv->mcast_mtu, dev->mtu));
-		rtnl_unlock();
-		ipoib_flush_paths(dev);
+	rtnl_unlock();
 
+	if (!ret)
 		return count;
-	}
-	rtnl_unlock();
 
-	return -EINVAL;
+	return ret;
 }
 
 static DEVICE_ATTR(mode, S_IWUSR | S_IRUGO, show_mode, set_mode);