lwtunnel_cmp_encap
!lwtunnel_cmp_encap(nha->fib_nh_lws, nhb->fib_nh_lws);
int lwtunnel_cmp_encap(struct lwtunnel_state *a, struct lwtunnel_state *b);
EXPORT_SYMBOL_GPL(lwtunnel_cmp_encap);
lwtunnel_cmp_encap(nh->fib_nh_lws, onh->fib_nh_lws) ||
result = lwtunnel_cmp_encap(lwtstate, nh->fib_nh_lws);