mark virDomainVirtioSerialAddrSetAddController as static.

This function is no longer used outside domain_addr.c

src/conf/domain_addr.c

@@ -825,7 +825,7 @@ virDomainVirtioSerialAddrFindController(virDomainVirtioSerialAddrSetPtr addrs,
  * Adds virtio serial ports of the existing controller
  * to the address set.
  */
-int
+static int
 virDomainVirtioSerialAddrSetAddController(virDomainVirtioSerialAddrSetPtr addrs,
                                           virDomainControllerDefPtr cont)
 {

src/conf/domain_addr.h

@@ -206,10 +206,6 @@ typedef virDomainVirtioSerialAddrSet *virDomainVirtioSerialAddrSetPtr;
 virDomainVirtioSerialAddrSetPtr
 virDomainVirtioSerialAddrSetCreate(void);
 int
-virDomainVirtioSerialAddrSetAddController(virDomainVirtioSerialAddrSetPtr addrs,
-                                          virDomainControllerDefPtr cont)
-    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
-int
 virDomainVirtioSerialAddrSetAddControllers(virDomainVirtioSerialAddrSetPtr addrs,
                                            virDomainDefPtr def)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);

src/libvirt_private.syms

@@ -111,7 +111,6 @@ virDomainVirtioSerialAddrAutoAssign;
 virDomainVirtioSerialAddrIsComplete;
 virDomainVirtioSerialAddrRelease;
 virDomainVirtioSerialAddrReserve;
-virDomainVirtioSerialAddrSetAddController;
 virDomainVirtioSerialAddrSetAddControllers;
 virDomainVirtioSerialAddrSetCreate;
 virDomainVirtioSerialAddrSetFree;