This will be used in specific graphics types that are using listen
elements.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
---
 src/conf/domain_conf.c | 67 ++++++++++++++++++++++++------------------
 1 file changed, 39 insertions(+), 28 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 81068570a0..d39b885101 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -26328,6 +26328,44 @@ virDomainGraphicsListenDefFormat(virBuffer *buf,
 }
 
 
+static void
+virDomainGraphicsDefFormatListnes(virBuffer *childBuf,
+                                  virDomainGraphicsDef *def,
+                                  unsigned int flags)
+{
+    size_t i;
+
+    for (i = 0; i < def->nListens; i++) {
+        if (flags & VIR_DOMAIN_DEF_FORMAT_MIGRATABLE) {
+            /* If the listen is based on config options from qemu.conf we need
+             * to skip it.  It's up to user to properly configure both hosts for
+             * migration. */
+            if (def->listens[i].fromConfig)
+                continue;
+
+            /* If the socket is provided by user in the XML we need to skip this
+             * listen type to support migration back to old libvirt since old
+             * libvirt supports specifying socket path inside graphics element
+             * as 'socket' attribute.  Auto-generated socket is a new feature
+             * thus we can generate it in the migrateble XML. */
+            if (def->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC &&
+                def->listens[i].type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET &&
+                def->listens[i].socket &&
+                !def->listens[i].autoGenerated)
+                continue;
+
+            /* The new listen type none is in the migratable XML represented as
+             * port=0 and autoport=no because old libvirt support this
+             * configuration for spice. */
+            if (def->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE &&
+                def->listens[i].type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE)
+                continue;
+        }
+        virDomainGraphicsListenDefFormat(childBuf, &def->listens[i], flags);
+    }
+}
+
+
 /**
  * virDomainGraphicsListenDefFormatAddr:
  * @buf: buffer where the output XML is written
@@ -26643,34 +26681,7 @@ virDomainGraphicsDefFormat(virBuffer *buf,
         break;
     }
 
-    for (i = 0; i < def->nListens; i++) {
-        if (flags & VIR_DOMAIN_DEF_FORMAT_MIGRATABLE) {
-            /* If the listen is based on config options from qemu.conf we need
-             * to skip it.  It's up to user to properly configure both hosts for
-             * migration. */
-            if (def->listens[i].fromConfig)
-                continue;
-
-            /* If the socket is provided by user in the XML we need to skip this
-             * listen type to support migration back to old libvirt since old
-             * libvirt supports specifying socket path inside graphics element
-             * as 'socket' attribute.  Auto-generated socket is a new feature
-             * thus we can generate it in the migrateble XML. */
-            if (def->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC &&
-                def->listens[i].type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET &&
-                def->listens[i].socket &&
-                !def->listens[i].autoGenerated)
-                continue;
-
-            /* The new listen type none is in the migratable XML represented as
-             * port=0 and autoport=no because old libvirt support this
-             * configuration for spice. */
-            if (def->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE &&
-                def->listens[i].type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE)
-                continue;
-        }
-        virDomainGraphicsListenDefFormat(&childBuf, &def->listens[i], flags);
-    }
+    virDomainGraphicsDefFormatListnes(&childBuf, def, flags);
 
     if (def->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE) {
         g_auto(virBuffer) spiceBuf = VIR_BUFFER_INITIALIZER;
-- 
2.48.1