virhostdev.c: add virHostdevIsPCIDevice() helper

Add a helper to quickly determine if a hostdev is a PCI device,
instead of doing a tedious 'if' check with hostdev mode and
subsys type.

Reviewed-by: Laine Stump <laine@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>

src/hypervisor/virhostdev.c

@@ -347,12 +347,18 @@ virHostdevNetDevice(virDomainHostdevDefPtr hostdev,
 }
 
 
+bool
+virHostdevIsPCIDevice(const virDomainHostdevDef *hostdev)
+{
+    return hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
+        hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI;
+}
+
+
 static bool
 virHostdevIsPCINetDevice(const virDomainHostdevDef *hostdev)
 {
-    return hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
+    return virHostdevIsPCIDevice(hostdev) && hostdev->parentnet != NULL;
-        hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI &&
-        hostdev->parentnet != NULL;
 }
 
 

src/hypervisor/virhostdev.h

@@ -233,3 +233,5 @@ virHostdevUpdateActiveNVMeDevices(virHostdevManagerPtr hostdev_mgr,
                                   const char *dom_name,
                                   virDomainDiskDefPtr *disks,
                                   size_t ndisks);
+
+bool virHostdevIsPCIDevice(const virDomainHostdevDef *hostdev);

src/libvirt_private.syms

@@ -1526,6 +1526,7 @@ virCloseCallbacksUnset;
 
 # hypervisor/virhostdev.h
 virHostdevFindUSBDevice;
+virHostdevIsPCIDevice;
 virHostdevManagerGetDefault;
 virHostdevPCINodeDeviceDetach;
 virHostdevPCINodeDeviceReAttach;