[libvirt] [PATCH v3 07/30] virHostdevReAttachPCIDevices: Separate out function body

[Michal Privoznik]

In near future we will have a list of PCI devices we want to
re-attach to the host (held in virPCIDeviceListPtr) but we don't
have virDomainHostdevDefPtr. That's okay because
virHostdevReAttachPCIDevices() works with virPCIDeviceListPtr
mostly anyway. And in very few places where it needs
virDomainHostdevDefPtr are not interesting for our case.

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
ACKed-by: Peter Krempa <pkrempa at redhat.com>
---
 src/util/virhostdev.c | 58 +++++++++++++++++++++++++++----------------
 1 file changed, 37 insertions(+), 21 deletions(-)

diff --git a/src/util/virhostdev.c b/src/util/virhostdev.c
index b8e6e2bc36..94a0185597 100644
--- a/src/util/virhostdev.c
+++ b/src/util/virhostdev.c
@@ -1002,30 +1002,17 @@ virHostdevPreparePCIDevices(virHostdevManagerPtr mgr,
 }
 
 
-/* @oldStateDir:
- * For upgrade purpose: see virHostdevRestoreNetConfig
- */
-void
-virHostdevReAttachPCIDevices(virHostdevManagerPtr mgr,
-                             const char *drv_name,
-                             const char *dom_name,
-                             virDomainHostdevDefPtr *hostdevs,
-                             int nhostdevs,
-                             const char *oldStateDir)
+static void
+virHostdevReAttachPCIDevicesImpl(virHostdevManagerPtr mgr,
+                                 const char *drv_name,
+                                 const char *dom_name,
+                                 virPCIDeviceListPtr pcidevs,
+                                 virDomainHostdevDefPtr *hostdevs,
+                                 int nhostdevs,
+                                 const char *oldStateDir)
 {
-    g_autoptr(virPCIDeviceList) pcidevs = NULL;
     size_t i;
 
-    if (!nhostdevs)
-        return;
-
-    if (!(pcidevs = virHostdevGetPCIHostDeviceList(hostdevs, nhostdevs))) {
-        VIR_ERROR(_("Failed to allocate PCI device list: %s"),
-                  virGetLastErrorMessage());
-        virResetLastError();
-        return;
-    }
-
     virObjectLock(mgr->activePCIHostdevs);
     virObjectLock(mgr->inactivePCIHostdevs);
 
@@ -1121,6 +1108,35 @@ virHostdevReAttachPCIDevices(virHostdevManagerPtr mgr,
     virObjectUnlock(mgr->inactivePCIHostdevs);
 }
 
+
+/* @oldStateDir:
+ * For upgrade purpose: see virHostdevRestoreNetConfig
+ */
+void
+virHostdevReAttachPCIDevices(virHostdevManagerPtr mgr,
+                             const char *drv_name,
+                             const char *dom_name,
+                             virDomainHostdevDefPtr *hostdevs,
+                             int nhostdevs,
+                             const char *oldStateDir)
+{
+    g_autoptr(virPCIDeviceList) pcidevs = NULL;
+
+    if (!nhostdevs)
+        return;
+
+    if (!(pcidevs = virHostdevGetPCIHostDeviceList(hostdevs, nhostdevs))) {
+        VIR_ERROR(_("Failed to allocate PCI device list: %s"),
+                  virGetLastErrorMessage());
+        virResetLastError();
+        return;
+    }
+
+    virHostdevReAttachPCIDevicesImpl(mgr, drv_name, dom_name, pcidevs,
+                                     hostdevs, nhostdevs, oldStateDir);
+}
+
+
 int
 virHostdevUpdateActivePCIDevices(virHostdevManagerPtr mgr,
                                  virDomainHostdevDefPtr *hostdevs,
-- 
2.23.0