[SCSI] iscsi: remove session/conn_data_size from iscsi_transport

This removes the session and conn data_size fields from the iscsi_transport.
Just pass in the value like with host allocation. This patch also makes
it so the LLD iscsi_conn data is allocated with the iscsi_cls_conn.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 10 insertions, 5 deletions

diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 73c37c04ca66..784a935fad4a 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1867,7 +1867,8 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
                 cmds_max = ISCSI_DEF_XMIT_CMDS_MAX;
         }
 
-        cls_session = iscsi_alloc_session(shost, iscsit);
+        cls_session = iscsi_alloc_session(shost, iscsit,
+                                          sizeof(struct iscsi_session));
         if (!cls_session)
                 return NULL;
         session = cls_session->dd_data;
@@ -1968,22 +1969,26 @@ EXPORT_SYMBOL_GPL(iscsi_session_teardown);
 /**
  * iscsi_conn_setup - create iscsi_cls_conn and iscsi_conn
  * @cls_session: iscsi_cls_session
+ * @dd_size: private driver data size
  * @conn_idx: cid
- **/
+ */
 struct iscsi_cls_conn *
-iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx)
+iscsi_conn_setup(struct iscsi_cls_session *cls_session, int dd_size,
+                 uint32_t conn_idx)
 {
         struct iscsi_session *session = cls_session->dd_data;
         struct iscsi_conn *conn;
         struct iscsi_cls_conn *cls_conn;
         char *data;
 
-        cls_conn = iscsi_create_conn(cls_session, conn_idx);
+        cls_conn = iscsi_create_conn(cls_session, sizeof(*conn) + dd_size,
+                                     conn_idx);
         if (!cls_conn)
                 return NULL;
         conn = cls_conn->dd_data;
-        memset(conn, 0, sizeof(*conn));
+        memset(conn, 0, sizeof(*conn) + dd_size);
 
+        conn->dd_data = cls_conn->dd_data + sizeof(*conn);
         conn->session = session;
         conn->cls_conn = cls_conn;
         conn->c_stage = ISCSI_CONN_INITIAL_STAGE;