link_set_hostname  274 src/network/networkd-dhcp4.c                         r = link_set_hostname(link, "");
link_set_hostname  491 src/network/networkd-dhcp4.c                         r = link_set_hostname(link, hostname);
link_set_hostname  119 src/network/networkd-link.h int link_set_hostname(Link *link, const char *hostname);