* @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
  * @smid_task: smid assigned to the task
  * @timeout: timeout in seconds
- * @serial_number: the serial_number from scmd
  * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
  * Context: user
  *
 int
 mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint channel,
     uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
-       unsigned long serial_number, enum mutex_type m_type)
+       enum mutex_type m_type)
 {
        Mpi2SCSITaskManagementRequest_t *mpi_request;
        Mpi2SCSITaskManagementReply_t *mpi_reply;
        handle = sas_device_priv_data->sas_target->handle;
        r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
            scmd->device->id, scmd->device->lun,
-           MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
-           scmd->serial_number, TM_MUTEX_ON);
+           MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, TM_MUTEX_ON);
 
  out:
        sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
 
        r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
            scmd->device->id, scmd->device->lun,
-           MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, 0,
-           TM_MUTEX_ON);
+           MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, TM_MUTEX_ON);
 
  out:
        sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
 
        r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
            scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
-           30, 0, TM_MUTEX_ON);
+           30, TM_MUTEX_ON);
 
  out:
        starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
 
                spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
                r = mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
-                   MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, 0,
+                   MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30,
                    TM_MUTEX_OFF);
                if (r == FAILED) {
                        sdev_printk(KERN_WARNING, sdev,
 
                r = mpt2sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
                    sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
-                   scmd->serial_number, TM_MUTEX_OFF);
+                   TM_MUTEX_OFF);
                if (r == FAILED) {
                        sdev_printk(KERN_WARNING, sdev,
                            "mpt2sas_scsih_issue_tm: ABORT_TASK: FAILED : "