netdev-vport: Properly initialize tnl_port_config structure to 0.

Otherwise the configuration starts out indeterminate and tends to be
rejected by the kernel.

Bug #4195.

diff --git a/lib/netdev-vport.c b/lib/netdev-vport.c
index f0de376a44b7988edab16f14f30d78de6cbe9848..f101b938c172edf5fc6a01c6b5d13153f8cb2335 100644 (file)
--- a/lib/netdev-vport.c
+++ b/lib/netdev-vport.c
@@ -438,6 +438,7 @@ parse_tunnel_config(const struct netdev_dev *dev, const struct shash *args,
     bool ipsec_ip_set = false;
     bool ipsec_mech_set = false;
 
+    memset(&config, 0, sizeof config);
     config.flags |= TNL_F_PMTUD;
     config.flags |= TNL_F_HDR_CACHE;