net/vhost: fix TSO feature default disablement

[ upstream commit 6d70462 ]

By default, TSO feature should be disabled because it requires
application's support to be functional as mentioned in the
documentation.

However, if "tso" devarg was not specified, the feature did
not get disabled.

This patch fixes this issue, so that TSO is disabled, even if
"tso=0" is not passed as devarg.

Fixes: e289400 ("net/vhost: support TSO disabling")

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>

drivers/net/vhost/rte_eth_vhost.c

@@ -1654,11 +1654,11 @@ rte_pmd_vhost_probe(struct rte_vdev_device *dev)
 				&open_int, &tso);
 		if (ret < 0)
 			goto out_free;
+	}
 
-		if (tso == 0) {
-			disable_flags |= (1ULL << VIRTIO_NET_F_HOST_TSO4);
-			disable_flags |= (1ULL << VIRTIO_NET_F_HOST_TSO6);
-		}
+	if (tso == 0) {
+		disable_flags |= (1ULL << VIRTIO_NET_F_HOST_TSO4);
+		disable_flags |= (1ULL << VIRTIO_NET_F_HOST_TSO6);
 	}
 
 	if (rte_kvargs_count(kvlist, ETH_VHOST_LINEAR_BUF) == 1) {