reduce parameters for func JoinOptionPriority

Signed-off-by: fanjiyun <fan.jiyun@zte.com.cn>

libnetwork/endpoint.go

@@ -1055,7 +1055,7 @@ func CreateOptionLoadBalancer() EndpointOption {
 
 // JoinOptionPriority function returns an option setter for priority option to
 // be passed to the endpoint.Join() method.
-func JoinOptionPriority(ep Endpoint, prio int) EndpointOption {
+func JoinOptionPriority(prio int) EndpointOption {
 	return func(ep *endpoint) {
 		// ep lock already acquired
 		c := ep.network.getController()

libnetwork/endpoint_test.go

@@ -51,7 +51,7 @@ fe90::2	somehost.example.com somehost
 		t.Fatal(err)
 	}
 
-	if err := ep1.Join(sbx, JoinOptionPriority(ep1, 1)); err != nil {
+	if err := ep1.Join(sbx, JoinOptionPriority(1)); err != nil {
 		t.Fatal(err)
 	}
 

libnetwork/sandbox_test.go

@@ -110,15 +110,15 @@ func TestSandboxAddMultiPrio(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	if err := ep1.Join(sbx, JoinOptionPriority(ep1, 1)); err != nil {
+	if err := ep1.Join(sbx, JoinOptionPriority(1)); err != nil {
 		t.Fatal(err)
 	}
 
-	if err := ep2.Join(sbx, JoinOptionPriority(ep2, 2)); err != nil {
+	if err := ep2.Join(sbx, JoinOptionPriority(2)); err != nil {
 		t.Fatal(err)
 	}
 
-	if err := ep3.Join(sbx, JoinOptionPriority(ep3, 3)); err != nil {
+	if err := ep3.Join(sbx, JoinOptionPriority(3)); err != nil {
 		t.Fatal(err)
 	}
 
@@ -145,7 +145,7 @@ func TestSandboxAddMultiPrio(t *testing.T) {
 	}
 
 	// Re-add ep3 back
-	if err := ep3.Join(sbx, JoinOptionPriority(ep3, 3)); err != nil {
+	if err := ep3.Join(sbx, JoinOptionPriority(3)); err != nil {
 		t.Fatal(err)
 	}