Hide neighbor table kind from NetworkEndpoint

The network endpoint should not need to have logic to handle different
kinds of neighbor tables. Network endpoints can let the NIC know about
differnt neighbor discovery messages and let the NIC decide which table
to update.

This allows us to remove the LinkAddressCache interface.

PiperOrigin-RevId: 354812584

2 files changed, 3 insertions, 3 deletions

diff --git a/pkg/tcpip/network/ipv4/ipv4.go b/pkg/tcpip/network/ipv4/ipv4.go
index 04c6a6708..e146844c2 100644
--- a/pkg/tcpip/network/ipv4/ipv4.go
+++ b/pkg/tcpip/network/ipv4/ipv4.go
@@ -105,7 +105,7 @@ func (e *endpoint) HandleLinkResolutionFailure(pkt *stack.PacketBuffer) {
 }
 
 // NewEndpoint creates a new ipv4 endpoint.
-func (p *protocol) NewEndpoint(nic stack.NetworkInterface, _ stack.LinkAddressCache, _ stack.NUDHandler, dispatcher stack.TransportDispatcher) stack.NetworkEndpoint {
+func (p *protocol) NewEndpoint(nic stack.NetworkInterface, dispatcher stack.TransportDispatcher) stack.NetworkEndpoint {
 	e := &endpoint{
 		nic:        nic,
 		dispatcher: dispatcher,
diff --git a/pkg/tcpip/network/ipv4/stats_test.go b/pkg/tcpip/network/ipv4/stats_test.go
index b28e7dcde..fbbc6e69c 100644
--- a/pkg/tcpip/network/ipv4/stats_test.go
+++ b/pkg/tcpip/network/ipv4/stats_test.go
@@ -50,7 +50,7 @@ func TestClearEndpointFromProtocolOnClose(t *testing.T) {
 	})
 	proto := s.NetworkProtocolInstance(ProtocolNumber).(*protocol)
 	nic := testInterface{nicID: 1}
-	ep := proto.NewEndpoint(&nic, nil, nil, nil).(*endpoint)
+	ep := proto.NewEndpoint(&nic, nil).(*endpoint)
 	var nicIDs []tcpip.NICID
 
 	proto.mu.Lock()
@@ -82,7 +82,7 @@ func TestMultiCounterStatsInitialization(t *testing.T) {
 	})
 	proto := s.NetworkProtocolInstance(ProtocolNumber).(*protocol)
 	var nic testInterface
-	ep := proto.NewEndpoint(&nic, nil, nil, nil).(*endpoint)
+	ep := proto.NewEndpoint(&nic, nil).(*endpoint)
 	// At this point, the Stack's stats and the NetworkEndpoint's stats are
 	// expected to be bound by a MultiCounterStat.
 	refStack := s.Stats()