RDMA/cma: Constify path record, ib_cm_event, listen_id pointers

Constify several pointers such as path_rec, ib_cm_event and listen_id
pointers in several functions.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

3 files changed, 17 insertions, 11 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 8ef50e46157c..518313a1b0c9 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -78,7 +78,7 @@ static struct ib_send_wr ipoib_cm_rx_drain_wr = {
 };
 
 static int ipoib_cm_tx_handler(struct ib_cm_id *cm_id,
-			       struct ib_cm_event *event);
+			       const struct ib_cm_event *event);
 
 static void ipoib_cm_dma_unmap_rx(struct ipoib_dev_priv *priv, int frags,
 				  u64 mapping[IPOIB_CM_RX_SG])
@@ -418,7 +418,8 @@ err_free_1:
 }
 
 static int ipoib_cm_send_rep(struct net_device *dev, struct ib_cm_id *cm_id,
-			     struct ib_qp *qp, struct ib_cm_req_event_param *req,
+			     struct ib_qp *qp,
+			     const struct ib_cm_req_event_param *req,
 			     unsigned int psn)
 {
 	struct ipoib_dev_priv *priv = ipoib_priv(dev);
@@ -438,7 +439,8 @@ static int ipoib_cm_send_rep(struct net_device *dev, struct ib_cm_id *cm_id,
 	return ib_send_cm_rep(cm_id, &rep);
 }
 
-static int ipoib_cm_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
+static int ipoib_cm_req_handler(struct ib_cm_id *cm_id,
+				const struct ib_cm_event *event)
 {
 	struct net_device *dev = cm_id->context;
 	struct ipoib_dev_priv *priv = ipoib_priv(dev);
@@ -500,7 +502,7 @@ err_qp:
 }
 
 static int ipoib_cm_rx_handler(struct ib_cm_id *cm_id,
-			       struct ib_cm_event *event)
+			       const struct ib_cm_event *event)
 {
 	struct ipoib_cm_rx *p;
 	struct ipoib_dev_priv *priv;
@@ -978,7 +980,8 @@ void ipoib_cm_dev_stop(struct net_device *dev)
 	cancel_delayed_work(&priv->cm.stale_task);
 }
 
-static int ipoib_cm_rep_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
+static int ipoib_cm_rep_handler(struct ib_cm_id *cm_id,
+				const struct ib_cm_event *event)
 {
 	struct ipoib_cm_tx *p = cm_id->context;
 	struct ipoib_dev_priv *priv = ipoib_priv(p->dev);
@@ -1244,7 +1247,7 @@ timeout:
 }
 
 static int ipoib_cm_tx_handler(struct ib_cm_id *cm_id,
-			       struct ib_cm_event *event)
+			       const struct ib_cm_event *event)
 {
 	struct ipoib_cm_tx *tx = cm_id->context;
 	struct ipoib_dev_priv *priv = ipoib_priv(tx->dev);
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index f5ec21d1f4dc..444d16520506 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -142,7 +142,8 @@ static void srp_remove_one(struct ib_device *device, void *client_data);
 static void srp_recv_done(struct ib_cq *cq, struct ib_wc *wc);
 static void srp_handle_qp_err(struct ib_cq *cq, struct ib_wc *wc,
 		const char *opname);
-static int srp_ib_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event);
+static int srp_ib_cm_handler(struct ib_cm_id *cm_id,
+			     const struct ib_cm_event *event);
 static int srp_rdma_cm_handler(struct rdma_cm_id *cm_id,
 			       struct rdma_cm_event *event);
 
@@ -2553,7 +2554,7 @@ error:
 }
 
 static void srp_ib_cm_rej_handler(struct ib_cm_id *cm_id,
-				  struct ib_cm_event *event,
+				  const struct ib_cm_event *event,
 				  struct srp_rdma_ch *ch)
 {
 	struct srp_target_port *target = ch->target;
@@ -2638,7 +2639,8 @@ static void srp_ib_cm_rej_handler(struct ib_cm_id *cm_id,
 	}
 }
 
-static int srp_ib_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
+static int srp_ib_cm_handler(struct ib_cm_id *cm_id,
+			     const struct ib_cm_event *event)
 {
 	struct srp_rdma_ch *ch = cm_id->context;
 	struct srp_target_port *target = ch->target;
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 7d9972add65f..d73e14699aa9 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -2401,7 +2401,7 @@ out:
 }
 
 static int srpt_ib_cm_req_recv(struct ib_cm_id *cm_id,
-			       struct ib_cm_req_event_param *param,
+			       const struct ib_cm_req_event_param *param,
 			       void *private_data)
 {
 	char sguid[40];
@@ -2513,7 +2513,8 @@ static void srpt_cm_rtu_recv(struct srpt_rdma_ch *ch)
  * a non-zero value in any other case will trigger a race with the
  * ib_destroy_cm_id() call in srpt_release_channel().
  */
-static int srpt_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
+static int srpt_cm_handler(struct ib_cm_id *cm_id,
+			   const struct ib_cm_event *event)
 {
 	struct srpt_rdma_ch *ch = cm_id->context;
 	int ret;