sd_ipv4ll_attach_event  231 src/network/networkd-ipv4ll.c         r = sd_ipv4ll_attach_event(link->ipv4ll, NULL, 0);
sd_ipv4ll_attach_event   41 src/systemd/sd-ipv4ll.h int sd_ipv4ll_attach_event(sd_ipv4ll *ll, sd_event *event, int priority);