rtadvd_add_timer
rai->timer = rtadvd_add_timer(ra_timeout,
tmp->timer = rtadvd_add_timer(ra_timeout, ra_timer_update,
tmp->timer_sol = rtadvd_add_timer(ra_timeout_sol, NULL, tmp, NULL);
prefix->timer = rtadvd_add_timer(prefix_timeout, NULL, prefix, NULL);
rai->timer = rtadvd_add_timer(ra_timeout, ra_timer_update, rai, rai);
rai->timer_sol = rtadvd_add_timer(ra_timeout_sol, NULL, rai, NULL);
struct rtadvd_timer *rtadvd_add_timer(struct rtadvd_timer *(*) (void *),