On 4/4/19 9:54 AM, Daniel P. Berrangé wrote:
The actual network def was updated to save the bridge name back
in 1.2.11:

   commit a3609121799d44898a3e0d0bf92b755e55e7b418
   Author: Laine Stump <la...@laine.org>
   Date:   Fri Nov 21 12:20:37 2014 -0500

     network: save bridge name in ActualNetDef when actualType==network too

The chance that someone is running libvirt < 1.2.11 and wants
todo a live upgrade to 5.3.0 without a host reboot is essentially
zero. We can thus reasonably drop the back compat code now.

Signed-off-by: Daniel P. Berrangé <berra...@redhat.com>


Reviewed-by: Laine Stump <la...@laine.org>


---
  src/network/bridge_driver.c | 11 -----------
  1 file changed, 11 deletions(-)

diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
index 6f88adf3b7..0c65c48b1a 100644
--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
@@ -4812,17 +4812,6 @@ networkNotifyActualDevice(virNetworkPtr net,
          goto error;
      }
- /* if we're restarting libvirtd after an upgrade from a version
-     * that didn't save bridge name in actualNetDef for
-     * actualType==network, we need to copy it in so that it will be
-     * available in all cases
-     */
-    if (actualType == VIR_DOMAIN_NET_TYPE_NETWORK &&
-        !iface->data.network.actual->data.bridge.brname &&
-        (VIR_STRDUP(iface->data.network.actual->data.bridge.brname,
-                    netdef->bridge) < 0))
-            goto error;
-
      /* see if we're connected to the correct bridge */
      if (netdef->bridge) {
          bool useOVS = false;


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