networkd: Do not send requests to create netdevs if they exists. (#6973)

If the netdev already exists we should not send requests to
kernel to create them.

fixes #5448

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index bad984ef9306efe2336a318115325efdc592e183..dd6bed55159374b32e9f19640a333b4b3a9e6514 100644 (file)
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -2289,6 +2289,11 @@ static int link_enter_join_netdev(Link *link) {
 
         HASHMAP_FOREACH(netdev, link->network->stacked_netdevs, i) {
 
+                if (netdev->ifindex > 0) {
+                        link_joined(link);
+                        continue;
+                }
+
                 log_struct(LOG_DEBUG,
                            LOG_LINK_INTERFACE(link),
                            LOG_NETDEV_INTERFACE(netdev),