qemu: Clean up old leftovers in qemuMonitorDrivePivot

There are two leftover unused variables. Remove them and clean up the
fallout of the change.

src/qemu/qemu_driver.c

@@ -16044,7 +16044,6 @@ qemuDomainBlockPivot(virConnectPtr conn,
     int ret = -1, rc;
     qemuDomainObjPrivatePtr priv = vm->privateData;
     virDomainBlockJobInfo info;
-    const char *format = NULL;
     bool resume = false;
     virStorageSourcePtr oldsrc = NULL;
     virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
@@ -16056,8 +16055,6 @@ qemuDomainBlockPivot(virConnectPtr conn,
         goto cleanup;
     }
 
-    format = virStorageFileFormatTypeToString(disk->mirror->format);
-
     /* Probe the status, if needed.  */
     if (!disk->mirrorState) {
         qemuDomainObjEnterMonitor(driver, vm);
@@ -16141,7 +16138,7 @@ qemuDomainBlockPivot(virConnectPtr conn,
      * overall return value.  */
     disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_PIVOT;
     qemuDomainObjEnterMonitor(driver, vm);
-    ret = qemuMonitorDrivePivot(priv->mon, device, disk->mirror->path, format);
+    ret = qemuMonitorDrivePivot(priv->mon, device);
     if (qemuDomainObjExitMonitor(driver, vm) < 0) {
         ret = -1;
         goto cleanup;

src/qemu/qemu_monitor.c

@@ -3492,23 +3492,20 @@ qemuMonitorDiskNameLookup(qemuMonitorPtr mon,
 }
 
 
-/* Use the block-job-complete monitor command to pivot a block copy
- * job.  */
+/* Use the block-job-complete monitor command to pivot a block copy job.  */
 int
-qemuMonitorDrivePivot(qemuMonitorPtr mon, const char *device,
-                      const char *file, const char *format)
+qemuMonitorDrivePivot(qemuMonitorPtr mon,
+                      const char *device)
 {
-    int ret = -1;
-
-    VIR_DEBUG("mon=%p, device=%s, file=%s, format=%s",
-              mon, device, file, NULLSTR(format));
+    VIR_DEBUG("mon=%p, device=%s", mon, device);
 
-    if (mon->json)
-        ret = qemuMonitorJSONDrivePivot(mon, device, file, format);
-    else
+    if (!mon->json) {
         virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                        _("drive pivot requires JSON monitor"));
-    return ret;
+        return -1;
+    }
+
+    return qemuMonitorJSONDrivePivot(mon, device);
 }
 
 int qemuMonitorArbitraryCommand(qemuMonitorPtr mon,

src/qemu/qemu_monitor.h

@@ -721,10 +721,8 @@ int qemuMonitorDriveMirror(qemuMonitorPtr mon,
                            unsigned int flags)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
 int qemuMonitorDrivePivot(qemuMonitorPtr mon,
-                          const char *device,
-                          const char *file,
-                          const char *format)
-    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
+                          const char *device)
+    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 
 int qemuMonitorBlockCommit(qemuMonitorPtr mon,
                            const char *device,

src/qemu/qemu_monitor_json.c

@@ -3859,9 +3859,8 @@ qemuMonitorJSONBlockCommit(qemuMonitorPtr mon, const char *device,
 }
 
 int
-qemuMonitorJSONDrivePivot(qemuMonitorPtr mon, const char *device,
-                          const char *file ATTRIBUTE_UNUSED,
-                          const char *format ATTRIBUTE_UNUSED)
+qemuMonitorJSONDrivePivot(qemuMonitorPtr mon,
+                          const char *device)
 {
     int ret;
     virJSONValuePtr cmd;

src/qemu/qemu_monitor_json.h

@@ -264,9 +264,7 @@ int qemuMonitorJSONDriveMirror(qemuMonitorPtr mon,
                                unsigned int flags)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
 int qemuMonitorJSONDrivePivot(qemuMonitorPtr mon,
-                              const char *device,
-                              const char *file,
-                              const char *format)
+                              const char *device)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 
 int qemuMonitorJSONBlockCommit(qemuMonitorPtr mon,

tests/qemumonitorjsontest.c

@@ -1186,7 +1186,7 @@ GEN_TEST_FUNC(qemuMonitorJSONSetDrivePassphrase, "vda", "secret_passhprase")
 GEN_TEST_FUNC(qemuMonitorJSONDriveMirror, "vdb", "/foo/bar", NULL, 1024, 0, 0,
               VIR_DOMAIN_BLOCK_REBASE_SHALLOW | VIR_DOMAIN_BLOCK_REBASE_REUSE_EXT)
 GEN_TEST_FUNC(qemuMonitorJSONBlockCommit, "vdb", "/foo/bar1", "/foo/bar2", NULL, 1024)
-GEN_TEST_FUNC(qemuMonitorJSONDrivePivot, "vdb", NULL, NULL)
+GEN_TEST_FUNC(qemuMonitorJSONDrivePivot, "vdb")
 GEN_TEST_FUNC(qemuMonitorJSONScreendump, "/foo/bar")
 GEN_TEST_FUNC(qemuMonitorJSONOpenGraphics, "spice", "spicefd", false)
 GEN_TEST_FUNC(qemuMonitorJSONNBDServerStart, "localhost", 12345)