[libvirt PATCH] conf: match by network alias only if aliases are assigned

[Ján Tomko]

Commit 114e3b423210d316b3326816fd2c33335b1167fe added matching by
aliases for interfaces with same MAC address.
( https://bugzilla.redhat.com/show_bug.cgi?id=1926190 )

However, unless the domain is using user aliases (prefixed ua-),
there are no aliases in the persistent definition.

Only match by MAC/PCI/other addresses in that case, to fix update-device
with --persistent flag (AFFECT_LIVE | AFFECT_CONFIG).

https://bugzilla.redhat.com/show_bug.cgi?id=2024098

Fixes: 114e3b423210d316b3326816fd2c33335b1167fe
Signed-off-by: Ján Tomko <jtomko at redhat.com>
---
 src/conf/domain_conf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index da0c64b460..0d7489094b 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -15763,8 +15763,8 @@ virDomainNetFindIdx(virDomainDef *def, virDomainNetDef *net)
                                             &net->info.addr.ccw))
             continue;
 
-        if (net->info.alias &&
-            STRNEQ_NULLABLE(def->nets[i]->info.alias, net->info.alias)) {
+        if (net->info.alias && def->nets[i]->info.alias &&
+            STRNEQ(def->nets[i]->info.alias, net->info.alias)) {
             continue;
         }
 
-- 
2.31.1