diff --git a/daemon/fw/unsolicited-data-policy.cpp b/daemon/fw/unsolicited-data-policy.cpp
index 8cf59d9..b29b827 100644
--- a/daemon/fw/unsolicited-data-policy.cpp
+++ b/daemon/fw/unsolicited-data-policy.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2014-2016,  Regents of the University of California,
+/*
+ * Copyright (c) 2014-2022,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -24,6 +24,7 @@
  */
 
 #include "unsolicited-data-policy.hpp"
+
 #include <boost/range/adaptor/map.hpp>
 #include <boost/range/algorithm/copy.hpp>
 
@@ -70,7 +71,7 @@
 NFD_REGISTER_UNSOLICITED_DATA_POLICY(DropAllUnsolicitedDataPolicy);
 
 UnsolicitedDataDecision
-DropAllUnsolicitedDataPolicy::decide(const Face& inFace, const Data& data) const
+DropAllUnsolicitedDataPolicy::decide(const Face&, const Data&) const
 {
   return UnsolicitedDataDecision::DROP;
 }
@@ -79,7 +80,7 @@
 NFD_REGISTER_UNSOLICITED_DATA_POLICY(AdmitLocalUnsolicitedDataPolicy);
 
 UnsolicitedDataDecision
-AdmitLocalUnsolicitedDataPolicy::decide(const Face& inFace, const Data& data) const
+AdmitLocalUnsolicitedDataPolicy::decide(const Face& inFace, const Data&) const
 {
   if (inFace.getScope() == ndn::nfd::FACE_SCOPE_LOCAL) {
     return UnsolicitedDataDecision::CACHE;
@@ -91,7 +92,7 @@
 NFD_REGISTER_UNSOLICITED_DATA_POLICY(AdmitNetworkUnsolicitedDataPolicy);
 
 UnsolicitedDataDecision
-AdmitNetworkUnsolicitedDataPolicy::decide(const Face& inFace, const Data& data) const
+AdmitNetworkUnsolicitedDataPolicy::decide(const Face& inFace, const Data&) const
 {
   if (inFace.getScope() == ndn::nfd::FACE_SCOPE_NON_LOCAL) {
     return UnsolicitedDataDecision::CACHE;
@@ -103,7 +104,7 @@
 NFD_REGISTER_UNSOLICITED_DATA_POLICY(AdmitAllUnsolicitedDataPolicy);
 
 UnsolicitedDataDecision
-AdmitAllUnsolicitedDataPolicy::decide(const Face& inFace, const Data& data) const
+AdmitAllUnsolicitedDataPolicy::decide(const Face&, const Data&) const
 {
   return UnsolicitedDataDecision::CACHE;
 }