HN_REGISTER
case HN_REGISTER:
case HN_REGISTER:
callback(HN_REGISTER, arg,
hfi->hfi_family.hf_name, NULL, he->he_name, HN_REGISTER);
callback(HN_REGISTER, arg,
hook_event_notify_run(hei, hfi, event, h->h_name, HN_REGISTER);
callback(HN_REGISTER, arg, buffer, NULL,
hook_stack_notify_run(hks, hf->hf_name, HN_REGISTER);