infiniband: fix ulp/iser/iser_initiator.c kernel-doc warnings

Add kernel-doc notation for missing function parameters:

../drivers/infiniband/ulp/iser/iser_initiator.c:365: warning: Function parameter or member 'conn' not described in 'iser_send_command'
../drivers/infiniband/ulp/iser/iser_initiator.c:365: warning: Function parameter or member 'task' not described in 'iser_send_command'
../drivers/infiniband/ulp/iser/iser_initiator.c:437: warning: Function parameter or member 'conn' not described in 'iser_send_data_out'
../drivers/infiniband/ulp/iser/iser_initiator.c:437: warning: Function parameter or member 'task' not described in 'iser_send_data_out'
../drivers/infiniband/ulp/iser/iser_initiator.c:437: warning: Function parameter or member 'hdr' not described in 'iser_send_data_out'

Link: https://lore.kernel.org/r/20191010035240.132033937@gmail.com
Signed-off-by: Randy Dunlap <rd.dunlab@gmail.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/ulp/iser/iser_initiator.c

@@ -358,6 +358,8 @@ static inline bool iser_signal_comp(u8 sig_count)
 
 /**
  * iser_send_command - send command PDU
+ * @conn: link to matching iscsi connection
+ * @task: SCSI command task
  */
 int iser_send_command(struct iscsi_conn *conn,
 		      struct iscsi_task *task)
@@ -429,6 +431,9 @@ int iser_send_command(struct iscsi_conn *conn,
 
 /**
  * iser_send_data_out - send data out PDU
+ * @conn: link to matching iscsi connection
+ * @task: SCSI command task
+ * @hdr: pointer to the LLD's iSCSI message header
  */
 int iser_send_data_out(struct iscsi_conn *conn,
 		       struct iscsi_task *task,