further fixes per review

Author: d-a-v

src/lmic/lmic.c

@@ -3081,7 +3081,7 @@ int LMIC_getNetworkTimeReference(lmic_time_reference_t *pReference) {
         return 1;
     }
 #else
-    (void)pReference;
+    LMIC_API_PARAMETER(pReference);
 #endif // LMIC_ENABLE_DeviceTimeReq
     return 0;
 }

src/lmic/lmic_compliance.c

@@ -658,7 +658,8 @@ void acSetTimer(ostime_t delay) {
     os_setTimedCallback(&LMIC_Compliance.timerJob, os_getTime() + delay, timerExpiredCb);
 }
 
-static void timerExpiredCb(__attribute__((unused)) osjob_t *j) {
+static void timerExpiredCb(osjob_t *j) {
+    LMIC_API_PARAMETER(j);
     LMIC_Compliance.eventflags |= LMIC_COMPLIANCE_EVENT_TIMER_EXPIRED;
     fsmEval();
 }
@@ -733,7 +734,9 @@ static void acSendUplink(void) {
     }
 }
 
-static void sendUplinkCompleteCb(__attribute__((unused)) void *pUserData, __attribute__((unused)) int fSuccess) {
+static void sendUplinkCompleteCb(void *pUserData, int fSuccess) {
+    LMIC_API_PARAMETER(pUserData);
+    LMIC_API_PARAMETER(fSuccess);
     LMIC_Compliance.eventflags |= LMIC_COMPLIANCE_EVENT_UPLINK_COMPLETE;
     LMIC_COMPLIANCE_PRINTF("%s(%s)\n", __func__, LMICcompliance_txSuccessToString(fSuccess));
     fsmEvalDeferred();