link_address_drop_handler  250 src/network/networkd-dhcp4.c                        address_drop(address, link, &link_address_drop_handler);
link_address_drop_handler   57 src/network/networkd-ipv4ll.c         address_drop(address, link, &link_address_drop_handler);
link_address_drop_handler  103 src/network/networkd-link.h int link_address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);