diff --git a/drivers/infiniband/sw/rxe/rxe_req.c b/drivers/infiniband/sw/rxe/rxe_req.c
index 1c1eae0ef8c2..63db49144f62 100644
--- a/drivers/infiniband/sw/rxe/rxe_req.c
+++ b/drivers/infiniband/sw/rxe/rxe_req.c
@@ -664,7 +664,8 @@ int rxe_requester(void *arg)
 	}
 
 	if (unlikely(qp_type(qp) == IB_QPT_RC &&
-		     qp->req.psn > (qp->comp.psn + RXE_MAX_UNACKED_PSNS))) {
+		psn_compare(qp->req.psn, (qp->comp.psn +
+				RXE_MAX_UNACKED_PSNS)) > 0)) {
 		qp->req.wait_psn = 1;
 		goto exit;
 	}