openvswitch: Add missing case OVS_TUNNEL_KEY_ATTR_PAD

[ Upstream commit 8f3dbfd79ed9ef9770305a7cc4e13dfd31ad2cd0 ]

Added a case for OVS_TUNNEL_KEY_ATTR_PAD to the switch statement
in ip_tun_from_nlattr in order to prevent the default case
returning an error.

Fixes: b46f6ded906e ("libnl: nla_put_be64(): align on a 64-bit area")
Signed-off-by: Kris Murphy <kriskend@linux.vnet.ibm.com>
Acked-by: Joe Stringer <joe@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index 677d7cc93017..07925418c2a5 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -649,6 +649,8 @@ static int ip_tun_from_nlattr(const struct nlattr *attr,
                         tun_flags |= TUNNEL_VXLAN_OPT;
                         opts_type = type;
                         break;
+                case OVS_TUNNEL_KEY_ATTR_PAD:
+                        break;
                 default:
                         OVS_NLERR(log, "Unknown IP tunnel attribute %d",
                                   type);