switch(conn->in.opcode) {
                case ISCSI_OP_LOGIN_RSP:
                case ISCSI_OP_TEXT_RSP:
-               case ISCSI_OP_LOGOUT_RSP: 
+               case ISCSI_OP_LOGOUT_RSP:
                        rc = iscsi_check_assign_cmdsn(session,
                                                 (struct iscsi_nopin*)hdr);
                        if (rc)
                        }
                        spin_unlock(&session->lock);
                        break;
-               case ISCSI_OP_NOOP_IN: 
+               case ISCSI_OP_NOOP_IN:
                        if (hdr->ttt != ISCSI_RESERVED_TAG) {
                                rc = ISCSI_ERR_PROTO;
                                break;
                        }
-                       rc = iscsi_check_assign_cmdsn(session, 
+                       rc = iscsi_check_assign_cmdsn(session,
                                                (struct iscsi_nopin*)hdr);
                        if (rc)
                                break;
                                if (!rc && hdr->ttt != ISCSI_RESERVED_TAG)
                                        rc = iscsi_recv_pdu(iscsi_handle(conn),
                                                            hdr, NULL, 0);
-                       } else 
+                       } else
                                rc = ISCSI_ERR_PROTO;
                        break;
                case ISCSI_OP_REJECT:
                                      sc->request_bufflen, ctask->data_offset);
                if (rc == -EAGAIN)
                        return rc;
-               if (conn->datadgst_en) 
+               if (conn->datadgst_en)
                        iscsi_recv_digest_update(conn, sc->request_buffer, i);
                rc = 0;
                goto done;
                conn->in.hdr = &conn->hdr;
                conn->senselen = (conn->data[0] << 8) | conn->data[1];
                rc = iscsi_cmd_rsp(conn, conn->in.ctask);
-               if (!rc && conn->datadgst_en) 
+               if (!rc && conn->datadgst_en)
                        iscsi_recv_digest_update(conn, conn->data,
                                                 conn->in.datalen);
        }
                rc = iscsi_recv_pdu(iscsi_handle(conn), conn->in.hdr,
                                    conn->data, conn->in.datalen);
 
-               if (!rc && conn->datadgst_en && 
+               if (!rc && conn->datadgst_en &&
                        conn->in.opcode != ISCSI_OP_LOGIN_RSP)
                        iscsi_recv_digest_update(conn, conn->data,
                                                conn->in.datalen);
                zero_data(ctask->hdr.dlength);
        }
 
-       iscsi_buf_init_virt(&ctask->headbuf, (char*)&ctask->hdr, 
+       iscsi_buf_init_virt(&ctask->headbuf, (char*)&ctask->hdr,
                            sizeof(struct iscsi_hdr));
        conn->scsicmd_pdus_cnt++;
 }
 handle_xmstate_r_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 {
        ctask->xmstate &= ~XMSTATE_R_HDR;
-       if (conn->hdrdgst_en) 
+       if (conn->hdrdgst_en)
                iscsi_hdr_digest(conn, &ctask->headbuf, (u8*)ctask->hdrext);
        if (!iscsi_sendhdr(conn, &ctask->headbuf, 0)) {
                BUG_ON(ctask->xmstate != XMSTATE_IDLE);
 handle_xmstate_w_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 {
        ctask->xmstate &= ~XMSTATE_W_HDR;
-       if (conn->hdrdgst_en) 
+       if (conn->hdrdgst_en)
                iscsi_hdr_digest(conn, &ctask->headbuf, (u8*)ctask->hdrext);
        if (iscsi_sendhdr(conn, &ctask->headbuf, ctask->imm_count)) {
                ctask->xmstate |= XMSTATE_W_HDR;
 solicit_head_again:
                r2t = ctask->r2t;
                if (conn->hdrdgst_en)
-                       iscsi_hdr_digest(conn, &r2t->headbuf, 
+                       iscsi_hdr_digest(conn, &r2t->headbuf,
                                        (u8*)r2t->dtask->hdrext);
                if (iscsi_sendhdr(conn, &r2t->headbuf, r2t->data_count)) {
                        ctask->xmstate &= ~XMSTATE_SOL_DATA;