File 24459-libxl-vifname.patch of Package xen

# HG changeset patch
# User Wei Liu <wei.liu2@citrix.com>
# Date 1325783613 0
# Node ID caf9753d4cc100183eeda26d00c8c38f14215651
# Parent  19ac027a3c311159dc0f3696d6e571314f0bf0c3
libxl: write vifname in xenstore if set.

Simple fix to enable user to specify vif names.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>

Index: xen-4.1.2-testing/tools/libxl/libxl.c
===================================================================
--- xen-4.1.2-testing.orig/tools/libxl/libxl.c
+++ xen-4.1.2-testing/tools/libxl/libxl.c
@@ -1233,6 +1233,12 @@ int libxl_device_nic_add(libxl_ctx *ctx,
     flexarray_append(back, libxl__sprintf(&gc, "%02x:%02x:%02x:%02x:%02x:%02x",
                                                  nic->mac[0], nic->mac[1], nic->mac[2],
                                                  nic->mac[3], nic->mac[4], nic->mac[5]));
+
+    if (nic->ifname) {
+        flexarray_append(back, "vifname");
+        flexarray_append(back, nic->ifname);
+    }
+
     if (nic->ip) {
         flexarray_append(back, "ip");
         flexarray_append(back, libxl__strdup(&gc, nic->ip));