networkd: link - only save original MTU when necessary

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 8960b60ab1aa93e3bb0d68529a606bd15ce76399..6e0139c97db90e2c1a20da078db95d6c60eefcf9 100644 (file)
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -828,9 +828,11 @@ int link_update(Link *link, sd_rtnl_message *m) {
         }
 
         while (sd_rtnl_message_read(m, &type, &data) > 0) {
-                if (type == IFLA_MTU && link->network->dhcp_mtu && !link->original_mtu) {
+                if (type == IFLA_MTU && link->network->dhcp &&
+                    link->network->dhcp_mtu && !link->original_mtu) {
                         link->original_mtu = *(uint16_t *) data;
-                        log_debug_link(link, "saved original MTU: %" PRIu16, link->original_mtu);
+                        log_debug_link(link, "saved original MTU: %" PRIu16,
+                                       link->original_mtu);
                 }
         }