This was found during smoketesting as thoase started to repeadingly fail in the last weeks
```
out: DEBUG - ======================================================================
out: DEBUG - FAIL: test_wireless_security_station_address (__main__.WirelessInterfaceTest.test_wireless_security_station_address)
out: DEBUG - ----------------------------------------------------------------------
out: DEBUG - Traceback (most recent call last):
out: DEBUG - File "/usr/libexec/vyos/tests/smoke/cli/test_interfaces_wireless.py", line 534, in test_wireless_security_station_address
out: DEBUG - self.assertTrue(process_named_running('hostapd'))
out: DEBUG - AssertionError: None is not true
out: DEBUG -
out: DEBUG - ----------------------------------------------------------------------
out: DEBUG - Ran 31 tests in 219.465s
```
Digging into this revealed that this is NOT related to the smoketest coding but to hostapd/systemd instead.
With a configured WIFI interface and calling `sudo systemctl reload-or-restart hostapd@wlan1` multiple times in a short period caused systemd to report: `Jul 18 16:15:32 systemd[1]: hostapd@wlan1.service: Deactivated successfully.`
According to the internal systemd logic used in our version this is explained by:
```
/* If there's a stop job queued before we enter the DEAD state, we shouldn't act on Restart=, in order to not
* undo what has already been enqueued. */
if (unit_stop_pending(UNIT(s)))
allow_restart = false;
if (s->result == SERVICE_SUCCESS)
s->result = f;
if (s->result == SERVICE_SUCCESS) {
unit_log_success(UNIT(s));
end_state = SERVICE_DEAD;`
```
Where `unit_log_success()` generates the log message in question.
## Solution
Improve the restart login in the wireless interface script and an upgrade to hostapd solved the issue.
The Wireless smoketests ran continously for 10 hours without an issue.