VXLAN_GBP_DONT_LEARN
md->gbp |= VXLAN_GBP_DONT_LEARN;
#define VXLAN_GBP_MASK (VXLAN_GBP_DONT_LEARN | VXLAN_GBP_POLICY_APPLIED | \
if (md->gbp & VXLAN_GBP_DONT_LEARN)