-extern S16 rlcUlActvTsk (Pst *, Buffer *);
-extern S16 rlcUlActvInit (Ent, Inst, Region, Reason);
-extern S16 rlcDlActvTsk (Pst *, Buffer *);
-extern S16 rlcDlActvInit (Ent, Inst, Region, Reason);
-extern S16 rgActvTsk (Pst *, Buffer *);
-extern S16 rgActvInit (Ent, Inst, Region, Reason);
+extern uint8_t rlcUlActvTsk (Pst *, Buffer *);
+extern uint8_t rlcUlActvInit (Ent, Inst, Region, Reason);
+extern uint8_t rlcDlActvTsk (Pst *, Buffer *);
+extern uint8_t rlcDlActvInit (Ent, Inst, Region, Reason);
+extern uint8_t rgActvTsk (Pst *, Buffer *);
+extern uint8_t rgActvInit (Ent, Inst, Region, Reason);