Remove use of networkPrivateData from netcf driver

The shared netcf driver is stateful and inside the daemon so
there is no need to use the networkPrivateData field to get the
driver handle. Just access the global driver handle directly.

src/interface/interface_backend_netcf.c

@@ -63,16 +63,16 @@ virNetcfDriverStateOnceInit(void)
 
 VIR_ONCE_GLOBAL_INIT(virNetcfDriverState)
 
-static virNetcfDriverStatePtr driverState;
+static virNetcfDriverStatePtr driver;
 
 
 static void
 virNetcfDriverStateDispose(void *obj)
 {
-    virNetcfDriverStatePtr driver = obj;
+    virNetcfDriverStatePtr _driver = obj;
 
-    if (driver->netcf)
-        ncf_close(driver->netcf);
+    if (_driver->netcf)
+        ncf_close(_driver->netcf);
 }
 
 
@@ -84,15 +84,15 @@ netcfStateInitialize(bool privileged ATTRIBUTE_UNUSED,
     if (virNetcfDriverStateInitialize() < 0)
         return -1;
 
-    if (!(driverState = virObjectLockableNew(virNetcfDriverStateClass)))
+    if (!(driver = virObjectLockableNew(virNetcfDriverStateClass)))
         return -1;
 
     /* open netcf */
-    if (ncf_init(&driverState->netcf, NULL) != 0) {
+    if (ncf_init(&driver->netcf, NULL) != 0) {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                        _("failed to initialize netcf"));
-        virObjectUnref(driverState);
-        driverState = NULL;
+        virObjectUnref(driver);
+        driver = NULL;
         return -1;
     }
     return 0;
@@ -102,16 +102,16 @@ netcfStateInitialize(bool privileged ATTRIBUTE_UNUSED,
 static int
 netcfStateCleanup(void)
 {
-    if (!driverState)
+    if (!driver)
         return -1;
 
-    if (virObjectUnref(driverState)) {
+    if (virObjectUnref(driver)) {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                        _("Attempt to close netcf state driver "
                          "with open connections"));
         return -1;
     }
-    driverState = NULL;
+    driver = NULL;
     return 0;
 }
 
@@ -121,12 +121,12 @@ netcfStateReload(void)
 {
     int ret = -1;
 
-    if (!driverState)
+    if (!driver)
         return 0;
 
-    virObjectLock(driverState);
-    ncf_close(driverState->netcf);
-    if (ncf_init(&driverState->netcf, NULL) != 0) {
+    virObjectLock(driver);
+    ncf_close(driver->netcf);
+    if (ncf_init(&driver->netcf, NULL) != 0) {
         /* this isn't a good situation, because we can't shut down the
          * driver as there may still be connections to it. If we set
          * the netcf handle to NULL, any subsequent calls to netcf
@@ -135,13 +135,13 @@ netcfStateReload(void)
          */
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                        _("failed to re-init netcf"));
-        driverState->netcf = NULL;
+        driver->netcf = NULL;
         goto cleanup;
     }
 
     ret = 0;
  cleanup:
-    virObjectUnlock(driverState);
+    virObjectUnlock(driver);
 
     return ret;
 }
@@ -245,10 +245,10 @@ netcfInterfaceObjIsActive(struct netcf_if *iface,
     int ret = -1;
     unsigned int flags = 0;
 
-    virObjectRef(driverState);
+    virObjectRef(driver);
     if (ncf_if_status(iface, &flags) < 0) {
         const char *errmsg, *details;
-        int errcode = ncf_error(driverState->netcf, &errmsg, &details);
+        int errcode = ncf_error(driver->netcf, &errmsg, &details);
         virReportError(netcf_to_vir_err(errcode),
                        _("failed to get status of interface %s: %s%s%s"),
                        ncf_if_name(iface), errmsg, details ? " - " : "",
@@ -260,33 +260,26 @@ netcfInterfaceObjIsActive(struct netcf_if *iface,
     ret = 0;
 
  cleanup:
-    virObjectUnref(driverState);
+    virObjectUnref(driver);
     return ret;
 }
 
 static virDrvOpenStatus
-netcfInterfaceOpen(virConnectPtr conn,
+netcfInterfaceOpen(virConnectPtr conn ATTRIBUTE_UNUSED,
                    virConnectAuthPtr auth ATTRIBUTE_UNUSED,
                    unsigned int flags)
 {
     virCheckFlags(VIR_CONNECT_RO, VIR_DRV_OPEN_ERROR);
 
-    if (!driverState)
+    if (!driver)
         return VIR_DRV_OPEN_ERROR;
 
-    virObjectRef(driverState);
-    conn->interfacePrivateData = driverState;
     return VIR_DRV_OPEN_SUCCESS;
 }
 
 static int
-netcfInterfaceClose(virConnectPtr conn)
+netcfInterfaceClose(virConnectPtr conn ATTRIBUTE_UNUSED)
 {
-
-    if (conn->interfacePrivateData != NULL) {
-        virObjectUnref(conn->interfacePrivateData);
-        conn->interfacePrivateData = NULL;
-    }
     return 0;
 }
 
@@ -294,7 +287,6 @@ static int netcfConnectNumOfInterfacesImpl(virConnectPtr conn,
                                            int status,
                                            virInterfaceObjListFilter filter)
 {
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
     int count;
     int want = 0;
     int ret = -1;
@@ -388,7 +380,6 @@ static int netcfConnectListInterfacesImpl(virConnectPtr conn,
                                           char **const names, int nnames,
                                           virInterfaceObjListFilter filter)
 {
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
     int count = 0;
     int want = 0;
     int ret = -1;
@@ -487,7 +478,6 @@ static int netcfConnectListInterfacesImpl(virConnectPtr conn,
 static int netcfConnectNumOfInterfaces(virConnectPtr conn)
 {
     int count;
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
 
     if (virConnectNumOfInterfacesEnsureACL(conn) < 0)
         return -1;
@@ -502,7 +492,6 @@ static int netcfConnectNumOfInterfaces(virConnectPtr conn)
 
 static int netcfConnectListInterfaces(virConnectPtr conn, char **const names, int nnames)
 {
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
     int count;
 
     if (virConnectListInterfacesEnsureACL(conn) < 0)
@@ -521,7 +510,6 @@ static int netcfConnectListInterfaces(virConnectPtr conn, char **const names, in
 static int netcfConnectNumOfDefinedInterfaces(virConnectPtr conn)
 {
     int count;
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
 
     if (virConnectNumOfDefinedInterfacesEnsureACL(conn) < 0)
         return -1;
@@ -536,7 +524,6 @@ static int netcfConnectNumOfDefinedInterfaces(virConnectPtr conn)
 
 static int netcfConnectListDefinedInterfaces(virConnectPtr conn, char **const names, int nnames)
 {
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
     int count;
 
     if (virConnectListDefinedInterfacesEnsureACL(conn) < 0)
@@ -558,7 +545,6 @@ netcfConnectListAllInterfaces(virConnectPtr conn,
                               virInterfacePtr **ifaces,
                               unsigned int flags)
 {
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
     int count;
     size_t i;
     struct netcf_if *iface = NULL;
@@ -704,7 +690,6 @@ netcfConnectListAllInterfaces(virConnectPtr conn,
 static virInterfacePtr netcfInterfaceLookupByName(virConnectPtr conn,
                                                   const char *name)
 {
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
     struct netcf_if *iface;
     virInterfacePtr ret = NULL;
     virInterfaceDefPtr def = NULL;
@@ -744,7 +729,6 @@ static virInterfacePtr netcfInterfaceLookupByName(virConnectPtr conn,
 static virInterfacePtr netcfInterfaceLookupByMACString(virConnectPtr conn,
                                                        const char *macstr)
 {
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
     struct netcf_if *iface;
     int niface;
     virInterfacePtr ret = NULL;
@@ -793,7 +777,6 @@ static virInterfacePtr netcfInterfaceLookupByMACString(virConnectPtr conn,
 static char *netcfInterfaceGetXMLDesc(virInterfacePtr ifinfo,
                                       unsigned int flags)
 {
-    virNetcfDriverStatePtr driver = ifinfo->conn->interfacePrivateData;
     struct netcf_if *iface = NULL;
     char *xmlstr = NULL;
     virInterfaceDefPtr ifacedef = NULL;
@@ -855,7 +838,6 @@ static virInterfacePtr netcfInterfaceDefineXML(virConnectPtr conn,
                                                const char *xml,
                                                unsigned int flags)
 {
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
     struct netcf_if *iface = NULL;
     char *xmlstr = NULL;
     virInterfaceDefPtr ifacedef = NULL;
@@ -903,7 +885,6 @@ static virInterfacePtr netcfInterfaceDefineXML(virConnectPtr conn,
 
 static int netcfInterfaceUndefine(virInterfacePtr ifinfo)
 {
-    virNetcfDriverStatePtr driver = ifinfo->conn->interfacePrivateData;
     struct netcf_if *iface = NULL;
     virInterfaceDefPtr def = NULL;
     int ret = -1;
@@ -944,7 +925,6 @@ static int netcfInterfaceUndefine(virInterfacePtr ifinfo)
 static int netcfInterfaceCreate(virInterfacePtr ifinfo,
                                 unsigned int flags)
 {
-    virNetcfDriverStatePtr driver = ifinfo->conn->interfacePrivateData;
     struct netcf_if *iface = NULL;
     virInterfaceDefPtr def = NULL;
     int ret = -1;
@@ -997,7 +977,6 @@ static int netcfInterfaceCreate(virInterfacePtr ifinfo,
 static int netcfInterfaceDestroy(virInterfacePtr ifinfo,
                                  unsigned int flags)
 {
-    virNetcfDriverStatePtr driver = ifinfo->conn->interfacePrivateData;
     struct netcf_if *iface = NULL;
     virInterfaceDefPtr def = NULL;
     int ret = -1;
@@ -1049,7 +1028,6 @@ static int netcfInterfaceDestroy(virInterfacePtr ifinfo,
 
 static int netcfInterfaceIsActive(virInterfacePtr ifinfo)
 {
-    virNetcfDriverStatePtr driver = ifinfo->conn->interfacePrivateData;
     struct netcf_if *iface = NULL;
     virInterfaceDefPtr def = NULL;
     int ret = -1;
@@ -1084,7 +1062,6 @@ static int netcfInterfaceIsActive(virInterfacePtr ifinfo)
 #ifdef HAVE_NETCF_TRANSACTIONS
 static int netcfInterfaceChangeBegin(virConnectPtr conn, unsigned int flags)
 {
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
     int ret;
 
     virCheckFlags(0, -1); /* currently flags must be 0 */
@@ -1110,7 +1087,6 @@ static int netcfInterfaceChangeBegin(virConnectPtr conn, unsigned int flags)
 
 static int netcfInterfaceChangeCommit(virConnectPtr conn, unsigned int flags)
 {
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
     int ret;
 
     virCheckFlags(0, -1); /* currently flags must be 0 */
@@ -1136,7 +1112,6 @@ static int netcfInterfaceChangeCommit(virConnectPtr conn, unsigned int flags)
 
 static int netcfInterfaceChangeRollback(virConnectPtr conn, unsigned int flags)
 {
-    virNetcfDriverStatePtr driver = conn->interfacePrivateData;
     int ret;
 
     virCheckFlags(0, -1); /* currently flags must be 0 */