4 files changed, 15 insertions, 22 deletions

diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 499a425a3379..ced615b5ea09 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -2676,6 +2676,9 @@ static int pass_establish(struct c4iw_dev *dev, struct sk_buff *skb)
 	u16 tcp_opt = ntohs(req->tcp_opt);
 
 	ep = get_ep_from_tid(dev, tid);
+	if (!ep)
+		return 0;
+
 	pr_debug("ep %p tid %u\n", ep, ep->hwtid);
 	ep->snd_seq = be32_to_cpu(req->snd_isn);
 	ep->rcv_seq = be32_to_cpu(req->rcv_isn);
@@ -4144,6 +4147,10 @@ static int rx_pkt(struct c4iw_dev *dev, struct sk_buff *skb)
 
 	if (neigh->dev->flags & IFF_LOOPBACK) {
 		pdev = ip_dev_find(&init_net, iph->daddr);
+		if (!pdev) {
+			pr_err("%s - failed to find device!\n", __func__);
+			goto free_dst;
+		}
 		e = cxgb4_l2t_get(dev->rdev.lldi.l2t, neigh,
 				    pdev, 0);
 		pi = (struct port_info *)netdev_priv(pdev);
diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c
index c7e8d7b3baa1..7e2835dcbc1c 100644
--- a/drivers/infiniband/hw/cxgb4/cq.c
+++ b/drivers/infiniband/hw/cxgb4/cq.c
@@ -767,7 +767,7 @@ static int __c4iw_poll_cq_one(struct c4iw_cq *chp, struct c4iw_qp *qhp,
 		goto out;
 
 	wc->wr_id = cookie;
-	wc->qp = qhp ? &qhp->ibqp : NULL;
+	wc->qp = &qhp->ibqp;
 	wc->vendor_err = CQE_STATUS(&cqe);
 	wc->wc_flags = 0;
 
diff --git a/drivers/infiniband/hw/cxgb4/restrack.c b/drivers/infiniband/hw/cxgb4/restrack.c
index ff645b955a08..fd22c85d35f4 100644
--- a/drivers/infiniband/hw/cxgb4/restrack.c
+++ b/drivers/infiniband/hw/cxgb4/restrack.c
@@ -238,7 +238,7 @@ int c4iw_fill_res_cm_id_entry(struct sk_buff *msg,
 	if (rdma_nl_put_driver_u64_hex(msg, "history", epcp->history))
 		goto err_cancel_table;
 
-	if (epcp->state == LISTEN) {
+	if (listen_ep) {
 		if (rdma_nl_put_driver_u32(msg, "stid", listen_ep->stid))
 			goto err_cancel_table;
 		if (rdma_nl_put_driver_u32(msg, "backlog", listen_ep->backlog))
diff --git a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
index a2f5e29ef226..1f79537fc8d1 100644
--- a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
+++ b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
@@ -122,9 +122,7 @@ struct fw_ri_dsgl {
 	__be16	nsge;
 	__be32	len0;
 	__be64	addr0;
-#ifndef C99_NOT_SUPPORTED
 	struct fw_ri_dsge_pair sge[];
-#endif
 };
 
 struct fw_ri_sge {
@@ -138,9 +136,7 @@ struct fw_ri_isgl {
 	__u8	r1;
 	__be16	nsge;
 	__be32	r2;
-#ifndef C99_NOT_SUPPORTED
 	struct fw_ri_sge sge[];
-#endif
 };
 
 struct fw_ri_immd {
@@ -148,9 +144,7 @@ struct fw_ri_immd {
 	__u8	r1;
 	__be16	r2;
 	__be32	immdlen;
-#ifndef C99_NOT_SUPPORTED
 	__u8	data[];
-#endif
 };
 
 struct fw_ri_tpte {
@@ -320,9 +314,7 @@ struct fw_ri_res_wr {
 	__be32 op_nres;
 	__be32 len16_pkd;
 	__u64  cookie;
-#ifndef C99_NOT_SUPPORTED
 	struct fw_ri_res res[];
-#endif
 };
 
 #define FW_RI_RES_WR_NRES_S	0
@@ -562,12 +554,10 @@ struct fw_ri_rdma_write_wr {
 	__be32 plen;
 	__be32 stag_sink;
 	__be64 to_sink;
-#ifndef C99_NOT_SUPPORTED
 	union {
-		struct fw_ri_immd immd_src[0];
-		struct fw_ri_isgl isgl_src[0];
+		DECLARE_FLEX_ARRAY(struct fw_ri_immd, immd_src);
+		DECLARE_FLEX_ARRAY(struct fw_ri_isgl, isgl_src);
 	} u;
-#endif
 };
 
 struct fw_ri_send_wr {
@@ -581,12 +571,10 @@ struct fw_ri_send_wr {
 	__be32 plen;
 	__be32 r3;
 	__be64 r4;
-#ifndef C99_NOT_SUPPORTED
 	union {
-		struct fw_ri_immd immd_src[0];
-		struct fw_ri_isgl isgl_src[0];
+		DECLARE_FLEX_ARRAY(struct fw_ri_immd, immd_src);
+		DECLARE_FLEX_ARRAY(struct fw_ri_isgl, isgl_src);
 	} u;
-#endif
 };
 
 #define FW_RI_SEND_WR_SENDOP_S		0
@@ -618,12 +606,10 @@ struct fw_ri_rdma_write_cmpl_wr {
 		struct fw_ri_isgl isgl_src;
 	} u_cmpl;
 	__be64 r3;
-#ifndef C99_NOT_SUPPORTED
 	union fw_ri_write {
-		struct fw_ri_immd immd_src[0];
-		struct fw_ri_isgl isgl_src[0];
+		DECLARE_FLEX_ARRAY(struct fw_ri_immd, immd_src);
+		DECLARE_FLEX_ARRAY(struct fw_ri_isgl, isgl_src);
 	} u;
-#endif
 };
 
 struct fw_ri_rdma_read_wr {