diff --git a/cmd/kube-proxy/app/init_others.go b/cmd/kube-proxy/app/init_linux.go
similarity index 94%
rename from cmd/kube-proxy/app/init_others.go
rename to cmd/kube-proxy/app/init_linux.go
index cee69f1a0eb2d..7e0ff787fe1d0 100644
--- a/cmd/kube-proxy/app/init_others.go
+++ b/cmd/kube-proxy/app/init_linux.go
@@ -1,5 +1,5 @@
-//go:build !windows
-// +build !windows
+//go:build linux
+// +build linux
 
 /*
 Copyright 2018 The Kubernetes Authors.
diff --git a/cmd/kube-proxy/app/server_others.go b/cmd/kube-proxy/app/server_linux.go
similarity index 99%
rename from cmd/kube-proxy/app/server_others.go
rename to cmd/kube-proxy/app/server_linux.go
index 9d90ca92fa523..b91adaf5154f5 100644
--- a/cmd/kube-proxy/app/server_others.go
+++ b/cmd/kube-proxy/app/server_linux.go
@@ -1,5 +1,5 @@
-//go:build !windows
-// +build !windows
+//go:build linux
+// +build linux
 
 /*
 Copyright 2014 The Kubernetes Authors.
diff --git a/cmd/kube-proxy/app/server_others_test.go b/cmd/kube-proxy/app/server_linux_test.go
similarity index 99%
rename from cmd/kube-proxy/app/server_others_test.go
rename to cmd/kube-proxy/app/server_linux_test.go
index 959e2972b0189..ec47c5d6c48ac 100644
--- a/cmd/kube-proxy/app/server_others_test.go
+++ b/cmd/kube-proxy/app/server_linux_test.go
@@ -1,5 +1,5 @@
-//go:build !windows
-// +build !windows
+//go:build linux
+// +build linux
 
 /*
 Copyright 2018 The Kubernetes Authors.
diff --git a/pkg/proxy/conntrack/cleanup.go b/pkg/proxy/conntrack/cleanup.go
index 4d25ff2f861aa..f99ab89770a84 100644
--- a/pkg/proxy/conntrack/cleanup.go
+++ b/pkg/proxy/conntrack/cleanup.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2023 The Kubernetes Authors.
 
diff --git a/pkg/proxy/conntrack/conntrack.go b/pkg/proxy/conntrack/conntrack.go
index 450ca1dda3a38..3a1925b867570 100644
--- a/pkg/proxy/conntrack/conntrack.go
+++ b/pkg/proxy/conntrack/conntrack.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/pkg/proxy/conntrack/conntrack_test.go b/pkg/proxy/conntrack/conntrack_test.go
index 18a7aab4e7bb0..a4b17ca5b0755 100644
--- a/pkg/proxy/conntrack/conntrack_test.go
+++ b/pkg/proxy/conntrack/conntrack_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/proxy/iptables/number_generated_rules_test.go b/pkg/proxy/iptables/number_generated_rules_test.go
index e160d5407f155..959b3f165cbe0 100644
--- a/pkg/proxy/iptables/number_generated_rules_test.go
+++ b/pkg/proxy/iptables/number_generated_rules_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2022 The Kubernetes Authors.
 
diff --git a/pkg/proxy/iptables/proxier.go b/pkg/proxy/iptables/proxier.go
index 2736226e65b0e..ffaa2ed88f1cb 100644
--- a/pkg/proxy/iptables/proxier.go
+++ b/pkg/proxy/iptables/proxier.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/proxy/iptables/proxier_test.go b/pkg/proxy/iptables/proxier_test.go
index e0d5e236fcfb5..32ab725fd4de1 100644
--- a/pkg/proxy/iptables/proxier_test.go
+++ b/pkg/proxy/iptables/proxier_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/graceful_termination.go b/pkg/proxy/ipvs/graceful_termination.go
index 5c873af52306a..45eaebb5158f6 100644
--- a/pkg/proxy/ipvs/graceful_termination.go
+++ b/pkg/proxy/ipvs/graceful_termination.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/graceful_termination_test.go b/pkg/proxy/ipvs/graceful_termination_test.go
index f3b5ba971c1c7..9d04894731f93 100644
--- a/pkg/proxy/ipvs/graceful_termination_test.go
+++ b/pkg/proxy/ipvs/graceful_termination_test.go
@@ -1,5 +1,5 @@
-//go:build !windows
-// +build !windows
+//go:build linux
+// +build linux
 
 /*
 Copyright 2019 The Kubernetes Authors.
diff --git a/pkg/proxy/ipvs/ipset.go b/pkg/proxy/ipvs/ipset.go
index 5147c112c4f00..056f80ca03dd8 100644
--- a/pkg/proxy/ipvs/ipset.go
+++ b/pkg/proxy/ipvs/ipset.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/ipset/ipset.go b/pkg/proxy/ipvs/ipset/ipset.go
index f6532dc090efa..2957340d937fa 100644
--- a/pkg/proxy/ipvs/ipset/ipset.go
+++ b/pkg/proxy/ipvs/ipset/ipset.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/ipset/ipset_test.go b/pkg/proxy/ipvs/ipset/ipset_test.go
index 8f45227abf291..130bc4ca876d7 100644
--- a/pkg/proxy/ipvs/ipset/ipset_test.go
+++ b/pkg/proxy/ipvs/ipset/ipset_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/ipset/testing/fake.go b/pkg/proxy/ipvs/ipset/testing/fake.go
index a94c709de7994..84377a832ee1a 100644
--- a/pkg/proxy/ipvs/ipset/testing/fake.go
+++ b/pkg/proxy/ipvs/ipset/testing/fake.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/ipset/testing/fake_test.go b/pkg/proxy/ipvs/ipset/testing/fake_test.go
index 0d07dfa9e0f68..a77215ae6a7b8 100644
--- a/pkg/proxy/ipvs/ipset/testing/fake_test.go
+++ b/pkg/proxy/ipvs/ipset/testing/fake_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/ipset/types.go b/pkg/proxy/ipvs/ipset/types.go
index 11f98d712c454..45632d278943f 100644
--- a/pkg/proxy/ipvs/ipset/types.go
+++ b/pkg/proxy/ipvs/ipset/types.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/ipset_test.go b/pkg/proxy/ipvs/ipset_test.go
index dafde0b480867..6f5842f2e9631 100644
--- a/pkg/proxy/ipvs/ipset_test.go
+++ b/pkg/proxy/ipvs/ipset_test.go
@@ -1,5 +1,5 @@
-//go:build !windows
-// +build !windows
+//go:build linux
+// +build linux
 
 /*
 Copyright 2017 The Kubernetes Authors.
diff --git a/pkg/proxy/ipvs/netlink_unsupported.go b/pkg/proxy/ipvs/netlink_unsupported.go
deleted file mode 100644
index 1cb38d3fb8f08..0000000000000
--- a/pkg/proxy/ipvs/netlink_unsupported.go
+++ /dev/null
@@ -1,82 +0,0 @@
-//go:build !linux
-// +build !linux
-
-/*
-Copyright 2017 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package ipvs
-
-import (
-	"fmt"
-	"net"
-
-	"k8s.io/apimachinery/pkg/util/sets"
-)
-
-// The type must match the one in proxier_test.go
-type netlinkHandle struct {
-	isIPv6 bool
-}
-
-// NewNetLinkHandle will create an EmptyHandle
-func NewNetLinkHandle(ipv6 bool) NetLinkHandle {
-	return &netlinkHandle{}
-}
-
-// EnsureAddressBind checks if address is bound to the interface and, if not, binds it. If the address is already bound, return true.
-func (h *netlinkHandle) EnsureAddressBind(address, devName string) (exist bool, err error) {
-	return false, fmt.Errorf("netlink not supported for this platform")
-}
-
-// UnbindAddress unbind address from the interface
-func (h *netlinkHandle) UnbindAddress(address, devName string) error {
-	return fmt.Errorf("netlink not supported for this platform")
-}
-
-// EnsureDummyDevice is part of interface
-func (h *netlinkHandle) EnsureDummyDevice(devName string) (bool, error) {
-	return false, fmt.Errorf("netlink is not supported in this platform")
-}
-
-// DeleteDummyDevice is part of interface.
-func (h *netlinkHandle) DeleteDummyDevice(devName string) error {
-	return fmt.Errorf("netlink is not supported in this platform")
-}
-
-// ListBindAddress is part of interface.
-func (h *netlinkHandle) ListBindAddress(devName string) ([]string, error) {
-	return nil, fmt.Errorf("netlink is not supported in this platform")
-}
-
-// GetAllLocalAddresses is part of interface.
-func (h *netlinkHandle) GetAllLocalAddresses() (sets.Set[string], error) {
-	return nil, fmt.Errorf("netlink is not supported in this platform")
-}
-
-// GetLocalAddresses is part of interface.
-func (h *netlinkHandle) GetLocalAddresses(dev string) (sets.Set[string], error) {
-	return nil, fmt.Errorf("netlink is not supported in this platform")
-}
-
-// GetAllLocalAddressesExcept is part of interface.
-func (h *netlinkHandle) GetAllLocalAddressesExcept(dev string) (sets.Set[string], error) {
-	return nil, fmt.Errorf("netlink is not supported in this platform")
-}
-
-// Must match the one in proxier_test.go
-func (h *netlinkHandle) isValidForSet(ip net.IP) bool {
-	return false
-}
diff --git a/pkg/proxy/ipvs/proxier.go b/pkg/proxy/ipvs/proxier.go
index d1594707f3511..f3f5f8813fabf 100644
--- a/pkg/proxy/ipvs/proxier.go
+++ b/pkg/proxy/ipvs/proxier.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
@@ -489,10 +492,8 @@ func NewDualStackProxier(
 	initOnly bool,
 ) (proxy.Provider, error) {
 
-	safeIpset := newSafeIpset(ipset)
-
 	// Create an ipv4 instance of the single-stack proxier
-	ipv4Proxier, err := NewProxier(v1.IPv4Protocol, ipt[0], ipvs, safeIpset, sysctl,
+	ipv4Proxier, err := NewProxier(v1.IPv4Protocol, ipt[0], ipvs, ipset, sysctl,
 		exec, syncPeriod, minSyncPeriod, filterCIDRs(false, excludeCIDRs), strictARP,
 		tcpTimeout, tcpFinTimeout, udpTimeout, masqueradeAll, masqueradeBit,
 		localDetectors[0], hostname, nodeIPs[v1.IPv4Protocol], recorder,
@@ -501,7 +502,7 @@ func NewDualStackProxier(
 		return nil, fmt.Errorf("unable to create ipv4 proxier: %v", err)
 	}
 
-	ipv6Proxier, err := NewProxier(v1.IPv6Protocol, ipt[1], ipvs, safeIpset, sysctl,
+	ipv6Proxier, err := NewProxier(v1.IPv6Protocol, ipt[1], ipvs, ipset, sysctl,
 		exec, syncPeriod, minSyncPeriod, filterCIDRs(true, excludeCIDRs), strictARP,
 		tcpTimeout, tcpFinTimeout, udpTimeout, masqueradeAll, masqueradeBit,
 		localDetectors[1], hostname, nodeIPs[v1.IPv6Protocol], recorder,
diff --git a/pkg/proxy/ipvs/proxier_test.go b/pkg/proxy/ipvs/proxier_test.go
index eebd10256ea63..360fc051782aa 100644
--- a/pkg/proxy/ipvs/proxier_test.go
+++ b/pkg/proxy/ipvs/proxier_test.go
@@ -1,5 +1,5 @@
-//go:build !windows
-// +build !windows
+//go:build linux
+// +build linux
 
 /*
 Copyright 2017 The Kubernetes Authors.
diff --git a/pkg/proxy/ipvs/safe_ipset.go b/pkg/proxy/ipvs/safe_ipset.go
deleted file mode 100644
index 1dbad0eb5cd8f..0000000000000
--- a/pkg/proxy/ipvs/safe_ipset.go
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
-Copyright 2019 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package ipvs
-
-import (
-	"sync"
-
-	"k8s.io/kubernetes/pkg/proxy/ipvs/ipset"
-)
-
-type safeIpset struct {
-	ipset ipset.Interface
-	mu    sync.Mutex
-}
-
-func newSafeIpset(ipset ipset.Interface) ipset.Interface {
-	return &safeIpset{
-		ipset: ipset,
-	}
-}
-
-// FlushSet deletes all entries from a named set.
-func (s *safeIpset) FlushSet(set string) error {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.ipset.FlushSet(set)
-}
-
-// DestroySet deletes a named set.
-func (s *safeIpset) DestroySet(set string) error {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.ipset.DestroySet(set)
-}
-
-// DestroyAllSets deletes all sets.
-func (s *safeIpset) DestroyAllSets() error {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.ipset.DestroyAllSets()
-}
-
-// CreateSet creates a new set.  It will ignore error when the set already exists if ignoreExistErr=true.
-func (s *safeIpset) CreateSet(set *ipset.IPSet, ignoreExistErr bool) error {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.ipset.CreateSet(set, ignoreExistErr)
-}
-
-// AddEntry adds a new entry to the named set.  It will ignore error when the entry already exists if ignoreExistErr=true.
-func (s *safeIpset) AddEntry(entry string, set *ipset.IPSet, ignoreExistErr bool) error {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.ipset.AddEntry(entry, set, ignoreExistErr)
-}
-
-// DelEntry deletes one entry from the named set
-func (s *safeIpset) DelEntry(entry string, set string) error {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.ipset.DelEntry(entry, set)
-}
-
-// Test test if an entry exists in the named set
-func (s *safeIpset) TestEntry(entry string, set string) (bool, error) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.ipset.TestEntry(entry, set)
-}
-
-// ListEntries lists all the entries from a named set
-func (s *safeIpset) ListEntries(set string) ([]string, error) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.ipset.ListEntries(set)
-}
-
-// ListSets list all set names from kernel
-func (s *safeIpset) ListSets() ([]string, error) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.ipset.ListSets()
-}
-
-// GetVersion returns the "X.Y" version string for ipset.
-func (s *safeIpset) GetVersion() (string, error) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.ipset.GetVersion()
-}
diff --git a/pkg/proxy/ipvs/testing/fake.go b/pkg/proxy/ipvs/testing/fake.go
index b0cdce8abd1f3..cd5958ccd5301 100644
--- a/pkg/proxy/ipvs/testing/fake.go
+++ b/pkg/proxy/ipvs/testing/fake.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/testing/fake_test.go b/pkg/proxy/ipvs/testing/fake_test.go
index bba5503f386ae..227facceb0c9e 100644
--- a/pkg/proxy/ipvs/testing/fake_test.go
+++ b/pkg/proxy/ipvs/testing/fake_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/testing/util.go b/pkg/proxy/ipvs/testing/util.go
index cd3bb7ebf0fd5..599532e1d8933 100644
--- a/pkg/proxy/ipvs/testing/util.go
+++ b/pkg/proxy/ipvs/testing/util.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/util/ipvs.go b/pkg/proxy/ipvs/util/ipvs.go
index c9b2ff4b33244..ac8853c440691 100644
--- a/pkg/proxy/ipvs/util/ipvs.go
+++ b/pkg/proxy/ipvs/util/ipvs.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/util/ipvs_test.go b/pkg/proxy/ipvs/util/ipvs_test.go
index 8aaedb1afd01c..7cf3b25d61569 100644
--- a/pkg/proxy/ipvs/util/ipvs_test.go
+++ b/pkg/proxy/ipvs/util/ipvs_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/util/ipvs_unsupported.go b/pkg/proxy/ipvs/util/ipvs_unsupported.go
deleted file mode 100644
index 74d821561d98a..0000000000000
--- a/pkg/proxy/ipvs/util/ipvs_unsupported.go
+++ /dev/null
@@ -1,79 +0,0 @@
-//go:build !linux
-// +build !linux
-
-/*
-Copyright 2017 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package ipvs
-
-import (
-	"fmt"
-	"time"
-)
-
-// New returns a dummy Interface for unsupported platform.
-func New() Interface {
-	return &runner{}
-}
-
-type runner struct {
-}
-
-func (runner *runner) Flush() error {
-	return fmt.Errorf("IPVS not supported for this platform")
-}
-
-func (runner *runner) AddVirtualServer(*VirtualServer) error {
-	return fmt.Errorf("IPVS not supported for this platform")
-}
-
-func (runner *runner) UpdateVirtualServer(*VirtualServer) error {
-	return fmt.Errorf("IPVS not supported for this platform")
-}
-
-func (runner *runner) DeleteVirtualServer(*VirtualServer) error {
-	return fmt.Errorf("IPVS not supported for this platform")
-}
-
-func (runner *runner) GetVirtualServer(*VirtualServer) (*VirtualServer, error) {
-	return nil, fmt.Errorf("IPVS not supported for this platform")
-}
-
-func (runner *runner) GetVirtualServers() ([]*VirtualServer, error) {
-	return nil, fmt.Errorf("IPVS not supported for this platform")
-}
-
-func (runner *runner) AddRealServer(*VirtualServer, *RealServer) error {
-	return fmt.Errorf("IPVS not supported for this platform")
-}
-
-func (runner *runner) GetRealServers(*VirtualServer) ([]*RealServer, error) {
-	return nil, fmt.Errorf("IPVS not supported for this platform")
-}
-
-func (runner *runner) DeleteRealServer(*VirtualServer, *RealServer) error {
-	return fmt.Errorf("IPVS not supported for this platform")
-}
-
-func (runner *runner) UpdateRealServer(*VirtualServer, *RealServer) error {
-	return fmt.Errorf("IPVS not supported for this platform")
-}
-
-func (runner *runner) ConfigureTimeouts(time.Duration, time.Duration, time.Duration) error {
-	return fmt.Errorf("IPVS not supported for this platform")
-}
-
-var _ = Interface(&runner{})
diff --git a/pkg/proxy/ipvs/util/testing/fake.go b/pkg/proxy/ipvs/util/testing/fake.go
index dc80cf38eec29..2d946517d0485 100644
--- a/pkg/proxy/ipvs/util/testing/fake.go
+++ b/pkg/proxy/ipvs/util/testing/fake.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/ipvs/util/testing/fake_test.go b/pkg/proxy/ipvs/util/testing/fake_test.go
index ec48e17784b3e..69aac3b1c85e2 100644
--- a/pkg/proxy/ipvs/util/testing/fake_test.go
+++ b/pkg/proxy/ipvs/util/testing/fake_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/proxy/nftables/helpers_test.go b/pkg/proxy/nftables/helpers_test.go
index b5286b952a35d..05c51caa82239 100644
--- a/pkg/proxy/nftables/helpers_test.go
+++ b/pkg/proxy/nftables/helpers_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/proxy/nftables/proxier.go b/pkg/proxy/nftables/proxier.go
index 57374f5ce20ad..1ebba16672474 100644
--- a/pkg/proxy/nftables/proxier.go
+++ b/pkg/proxy/nftables/proxier.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/proxy/nftables/proxier_test.go b/pkg/proxy/nftables/proxier_test.go
index c5ea7db876003..10f8c11f9e086 100644
--- a/pkg/proxy/nftables/proxier_test.go
+++ b/pkg/proxy/nftables/proxier_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/util/iptables/iptables.go b/pkg/util/iptables/iptables.go
index 8533a1ca624e4..c6c64e45f73a1 100644
--- a/pkg/util/iptables/iptables.go
+++ b/pkg/util/iptables/iptables.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2014 The Kubernetes Authors.
 
diff --git a/pkg/util/iptables/iptables_unsupported.go b/pkg/util/iptables/iptables_unsupported.go
deleted file mode 100644
index 0c7c5ee3e6516..0000000000000
--- a/pkg/util/iptables/iptables_unsupported.go
+++ /dev/null
@@ -1,33 +0,0 @@
-//go:build !linux
-// +build !linux
-
-/*
-Copyright 2017 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package iptables
-
-import (
-	"fmt"
-	"os"
-)
-
-func grabIptablesLocks(lock14filePath, lock16filePath string) (iptablesLocker, error) {
-	return nil, fmt.Errorf("iptables unsupported on this platform")
-}
-
-func grabIptablesFileLock(f *os.File) error {
-	return fmt.Errorf("iptables unsupported on this platform")
-}
diff --git a/pkg/util/iptables/save_restore.go b/pkg/util/iptables/save_restore.go
index d61de34c16a79..d507adde73789 100644
--- a/pkg/util/iptables/save_restore.go
+++ b/pkg/util/iptables/save_restore.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2014 The Kubernetes Authors.
 
diff --git a/pkg/util/iptables/save_restore_test.go b/pkg/util/iptables/save_restore_test.go
index 1030f6194c5db..26da4bb3e1cff 100644
--- a/pkg/util/iptables/save_restore_test.go
+++ b/pkg/util/iptables/save_restore_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2018 The Kubernetes Authors.
 
diff --git a/pkg/util/iptables/testing/fake.go b/pkg/util/iptables/testing/fake.go
index 10c91b3021ecd..6152113dd15a3 100644
--- a/pkg/util/iptables/testing/fake.go
+++ b/pkg/util/iptables/testing/fake.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/util/iptables/testing/fake_test.go b/pkg/util/iptables/testing/fake_test.go
index a20917c036da5..b2edaa5954927 100644
--- a/pkg/util/iptables/testing/fake_test.go
+++ b/pkg/util/iptables/testing/fake_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2022 The Kubernetes Authors.
 
diff --git a/pkg/util/iptables/testing/parse.go b/pkg/util/iptables/testing/parse.go
index c46adfafac09a..d7957e8c76029 100644
--- a/pkg/util/iptables/testing/parse.go
+++ b/pkg/util/iptables/testing/parse.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2022 The Kubernetes Authors.
 
diff --git a/pkg/util/iptables/testing/parse_test.go b/pkg/util/iptables/testing/parse_test.go
index c439ef61fcdac..848b27e4021b9 100644
--- a/pkg/util/iptables/testing/parse_test.go
+++ b/pkg/util/iptables/testing/parse_test.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 /*
 Copyright 2022 The Kubernetes Authors.