Mark structs as savable in netstack.

PiperOrigin-RevId: 661475603

pkg/tcpip/link/veth/veth.go

@@ -25,10 +25,11 @@ import (
 var _ stack.LinkEndpoint = (*Endpoint)(nil)
 var _ stack.GSOEndpoint = (*Endpoint)(nil)
 
+// +stateify savable
 type veth struct {
-	mu           sync.RWMutex
+	mu           sync.RWMutex `state:"nosave"`
 	closed       bool
-	backlogQueue chan vethPacket
+	backlogQueue chan vethPacket `state:"nosave"`
 	mtu          uint32
 	endpoints    [2]Endpoint
 }
@@ -80,7 +81,7 @@ type Endpoint struct {
 	// +checklocks:mu
 	linkAddr tcpip.LinkAddress
 	// +checklocks:mu
-	onCloseAction func()
+	onCloseAction func() `state:"nosave"`
 }
 
 // NewPair creates a new veth pair.

pkg/tcpip/stack/nic.go

@@ -103,7 +103,7 @@ func makeNICStats(global tcpip.NICStats) sharedStats {
 
 // +stateify savable
 type packetEndpointList struct {
-	mu packetEndpointListRWMutex
+	mu packetEndpointListRWMutex `state:"nosave"`
 
 	// eps is protected by mu, but the contained PacketEndpoint values are not.
 	//