diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index e761ddd09aed..c43512752b8a 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -2414,6 +2414,7 @@ static int cma_iw_listen(struct rdma_id_private *id_priv, int backlog)
 		return PTR_ERR(id);
 
 	id->tos = id_priv->tos;
+	id->tos_set = id_priv->tos_set;
 	id_priv->cm_id.iw = id;
 
 	memcpy(&id_priv->cm_id.iw->local_addr, cma_src_addr(id_priv),
@@ -3843,6 +3844,7 @@ static int cma_connect_iw(struct rdma_id_private *id_priv,
 		return PTR_ERR(cm_id);
 
 	cm_id->tos = id_priv->tos;
+	cm_id->tos_set = id_priv->tos_set;
 	id_priv->cm_id.iw = cm_id;
 
 	memcpy(&cm_id->local_addr, cma_src_addr(id_priv),
diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h
index 48512abd3162..0e1f02815643 100644
--- a/include/rdma/iw_cm.h
+++ b/include/rdma/iw_cm.h
@@ -94,7 +94,8 @@ struct iw_cm_id {
 	void (*add_ref)(struct iw_cm_id *);
 	void (*rem_ref)(struct iw_cm_id *);
 	u8  tos;
-	bool mapped;
+	bool tos_set:1;
+	bool mapped:1;
 };
 
 struct iw_cm_conn_param {