@@ -85,6 +85,8 @@ EXPORT_SYMBOL(ibcm_reject_msg);
struct cm_id_private;
static void cm_add_one(struct ib_device *device);
static void cm_remove_one(struct ib_device *device, void *client_data);
+static int cm_send_sidr_rep_locked(struct cm_id_private *cm_id_priv,
+ struct ib_cm_sidr_rep_param *param);
static int cm_send_dreq_locked(struct cm_id_private *cm_id_priv,
const void *private_data, u8 private_data_len);
static int cm_send_drep_locked(struct cm_id_private *cm_id_priv,
@@ -834,16 +836,6 @@ static struct cm_id_private * cm_insert_remote_sidr(struct cm_id_private
return NULL;
}
-static void cm_reject_sidr_req(struct cm_id_private *cm_id_priv,
- enum ib_cm_sidr_status status)
-{
- struct ib_cm_sidr_rep_param param;
-
- memset(¶m, 0, sizeof param);
- param.status = status;
- ib_send_cm_sidr_rep(&cm_id_priv->id, ¶m);
-}
-
static struct cm_id_private *cm_alloc_id_priv(struct ib_device *device,
ib_cm_handler cm_handler,
void *context)
@@ -1062,8 +1054,10 @@ static void cm_destroy_id(struct ib_cm_id *cm_id, int err)
spin_unlock_irq(&cm_id_priv->lock);
break;
case IB_CM_SIDR_REQ_RCVD:
+ cm_send_sidr_rep_locked(cm_id_priv,
+ &(struct ib_cm_sidr_rep_param){
+ .status = IB_SIDR_REJECT });
spin_unlock_irq(&cm_id_priv->lock);
- cm_reject_sidr_req(cm_id_priv, IB_SIDR_REJECT);
break;
case IB_CM_REQ_SENT:
case IB_CM_MRA_REQ_RCVD:
@@ -3667,7 +3661,9 @@ static int cm_sidr_req_handler(struct cm_work *work)
cm_id_priv->id.service_id);
if (!listen_cm_id_priv) {
spin_unlock_irq(&cm.lock);
- cm_reject_sidr_req(cm_id_priv, IB_SIDR_UNSUPPORTED);
+ ib_send_cm_sidr_rep(&cm_id_priv->id,
+ &(struct ib_cm_sidr_rep_param){
+ .status = IB_SIDR_UNSUPPORTED });
goto out; /* No match. */
}
refcount_inc(&listen_cm_id_priv->refcount);
@@ -3725,50 +3721,52 @@ static void cm_format_sidr_rep(struct cm_sidr_rep_msg *sidr_rep_msg,
param->private_data, param->private_data_len);
}
-int ib_send_cm_sidr_rep(struct ib_cm_id *cm_id,
- struct ib_cm_sidr_rep_param *param)
+static int cm_send_sidr_rep_locked(struct cm_id_private *cm_id_priv,
+ struct ib_cm_sidr_rep_param *param)
{
- struct cm_id_private *cm_id_priv;
struct ib_mad_send_buf *msg;
- unsigned long flags;
int ret;
+ lockdep_assert_held(&cm_id_priv->lock);
+
if ((param->info && param->info_length > IB_CM_SIDR_REP_INFO_LENGTH) ||
(param->private_data &&
param->private_data_len > IB_CM_SIDR_REP_PRIVATE_DATA_SIZE))
return -EINVAL;
- cm_id_priv = container_of(cm_id, struct cm_id_private, id);
- spin_lock_irqsave(&cm_id_priv->lock, flags);
- if (cm_id->state != IB_CM_SIDR_REQ_RCVD) {
- ret = -EINVAL;
- goto error;
- }
+ if (cm_id_priv->id.state != IB_CM_SIDR_REQ_RCVD)
+ return -EINVAL;
ret = cm_alloc_msg(cm_id_priv, &msg);
if (ret)
- goto error;
+ return ret;
cm_format_sidr_rep((struct cm_sidr_rep_msg *) msg->mad, cm_id_priv,
param);
ret = ib_post_send_mad(msg, NULL);
if (ret) {
- spin_unlock_irqrestore(&cm_id_priv->lock, flags);
cm_free_msg(msg);
return ret;
}
- cm_id->state = IB_CM_IDLE;
- spin_unlock_irqrestore(&cm_id_priv->lock, flags);
-
- spin_lock_irqsave(&cm.lock, flags);
+ cm_id_priv->id.state = IB_CM_IDLE;
if (!RB_EMPTY_NODE(&cm_id_priv->sidr_id_node)) {
rb_erase(&cm_id_priv->sidr_id_node, &cm.remote_sidr_table);
RB_CLEAR_NODE(&cm_id_priv->sidr_id_node);
}
- spin_unlock_irqrestore(&cm.lock, flags);
return 0;
+}
-error: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
+int ib_send_cm_sidr_rep(struct ib_cm_id *cm_id,
+ struct ib_cm_sidr_rep_param *param)
+{
+ struct cm_id_private *cm_id_priv =
+ container_of(cm_id, struct cm_id_private, id);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&cm_id_priv->lock, flags);
+ ret = cm_send_sidr_rep_locked(cm_id_priv, param);
+ spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
EXPORT_SYMBOL(ib_send_cm_sidr_rep);