func (pl *NodeAffinity) PreScore(ctx context.Context, cycleState *framework.CycleState, pod *v1.Pod, nodes []*framework.NodeInfo) *framework.Status {
	if len(nodes) == 0 {
		return nil
	}
	preferredNodeAffinity, err := getPodPreferredNodeAffinity(pod)
	if err != nil {
		return framework.AsStatus(err)
	}
	if preferredNodeAffinity == nil && pl.addedPrefSchedTerms == nil {
		// NodeAffinity Score has nothing to do with the Pod.