#include <linux/if.h>
#include <linux/if_vlan.h>
#include <linux/jhash.h>
+#include <linux/kconfig.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/mutex.h>
static const struct vport_ops *vport_ops_list[] = {
&ovs_netdev_vport_ops,
&ovs_internal_vport_ops,
+#if IS_ENABLED(CONFIG_NET_IPGRE_DEMUX)
&ovs_gre_vport_ops,
&ovs_gre64_vport_ops,
+#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
&ovs_vxlan_vport_ops,
&ovs_lisp_vport_ops,