int            mptscsih_resume(struct pci_dev *pdev);
 #endif
 
-#define SNS_LEN(scp)   sizeof((scp)->sense_buffer)
+#define SNS_LEN(scp)   SCSI_SENSE_BUFFERSIZE
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**
 
         */
        if (cmd->result)
                memcpy(cmd->sense_buffer, &msg->body[3],
-                      min(sizeof(cmd->sense_buffer), (size_t) 40));
+                      min(SCSI_SENSE_BUFFERSIZE, 40));
 
        /* only output error code if AdapterStatus is not HBA_SUCCESS */
        if ((error >> 8) & 0xff)
 
                        scsi_print_sense("53c700", SCp);
 
 #endif
-                       dma_unmap_single(hostdata->dev, slot->dma_handle, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
+                       dma_unmap_single(hostdata->dev, slot->dma_handle,
+                                        SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
                        /* restore the old result if the request sense was
                         * successful */
                        if (result == 0)
                                cmnd[1] = (SCp->device->lun & 0x7) << 5;
                                cmnd[2] = 0;
                                cmnd[3] = 0;
-                               cmnd[4] = sizeof(SCp->sense_buffer);
+                               cmnd[4] = SCSI_SENSE_BUFFERSIZE;
                                cmnd[5] = 0;
                                /* Here's a quiet hack: the
                                 * REQUEST_SENSE command is six bytes,
                                SCp->cmd_len = 6; /* command length for
                                                   * REQUEST_SENSE */
                                slot->pCmd = dma_map_single(hostdata->dev, cmnd, MAX_COMMAND_SIZE, DMA_TO_DEVICE);
-                               slot->dma_handle = dma_map_single(hostdata->dev, SCp->sense_buffer, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
-                               slot->SG[0].ins = bS_to_host(SCRIPT_MOVE_DATA_IN | sizeof(SCp->sense_buffer));
+                               slot->dma_handle = dma_map_single(hostdata->dev, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
+                               slot->SG[0].ins = bS_to_host(SCRIPT_MOVE_DATA_IN | SCSI_SENSE_BUFFERSIZE);
                                slot->SG[0].pAddr = bS_to_host(slot->dma_handle);
                                slot->SG[1].ins = bS_to_host(SCRIPT_RETURN);
                                slot->SG[1].pAddr = 0;
                                slot->resume_offset = hostdata->pScript;
                                dma_cache_sync(hostdata->dev, slot->SG, sizeof(slot->SG[0])*2, DMA_TO_DEVICE);
-                               dma_cache_sync(hostdata->dev, SCp->sense_buffer, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
+                               dma_cache_sync(hostdata->dev, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
 
                                /* queue the command for reissue */
                                slot->state = NCR_700_SLOT_QUEUED;
 
                }
        }
        memcpy(CCB->CDB, CDB, CDB_Length);
-       CCB->SenseDataLength = sizeof(Command->sense_buffer);
+       CCB->SenseDataLength = SCSI_SENSE_BUFFERSIZE;
        CCB->SenseDataPointer = pci_map_single(HostAdapter->PCI_Device, Command->sense_buffer, CCB->SenseDataLength, PCI_DMA_FROMDEVICE);
        CCB->Command = Command;
        Command->scsi_done = CompletionRoutine;
 
                            ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
                            0, 0);
                memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
-                 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(cmd->sense_buffer))
-                   ? sizeof(cmd->sense_buffer)
+                 (sizeof(dev->fsa_dev[cid].sense_data) > SCSI_SENSE_BUFFERSIZE)
+                   ? SCSI_SENSE_BUFFERSIZE
                    : sizeof(dev->fsa_dev[cid].sense_data));
                cmd->scsi_done(cmd);
                return 1;
                                    ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
                                    0, 0);
                memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
-                 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
-                   ? sizeof(scsicmd->sense_buffer)
+                 (sizeof(dev->fsa_dev[cid].sense_data) > SCSI_SENSE_BUFFERSIZE)
+                   ? SCSI_SENSE_BUFFERSIZE
                    : sizeof(dev->fsa_dev[cid].sense_data));
        }
        aac_fib_complete(fibptr);
                                    ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
                                    0, 0);
                memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
-                 min(sizeof(dev->fsa_dev[cid].sense_data),
-                         sizeof(cmd->sense_buffer)));
+                      min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
+                            SCSI_SENSE_BUFFERSIZE));
        }
 
        aac_fib_complete(fibptr);
                            SENCODE_INVALID_COMMAND,
                            ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
                memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
-                 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
-                   ? sizeof(scsicmd->sense_buffer)
+                 (sizeof(dev->fsa_dev[cid].sense_data) > SCSI_SENSE_BUFFERSIZE)
+                   ? SCSI_SENSE_BUFFERSIZE
                    : sizeof(dev->fsa_dev[cid].sense_data));
                scsicmd->scsi_done(scsicmd);
                return 0;
                                memcpy(scsicmd->sense_buffer,
                                  &dev->fsa_dev[cid].sense_data,
                                  (sizeof(dev->fsa_dev[cid].sense_data) >
-                                   sizeof(scsicmd->sense_buffer))
-                                      ? sizeof(scsicmd->sense_buffer)
+                                   SCSI_SENSE_BUFFERSIZE)
+                                      ? SCSI_SENSE_BUFFERSIZE
                                       : sizeof(dev->fsa_dev[cid].sense_data));
                        }
                        scsicmd->scsi_done(scsicmd);
                                ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
                                ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
                        memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
-                         (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
-                           ? sizeof(scsicmd->sense_buffer)
+                         (sizeof(dev->fsa_dev[cid].sense_data) > SCSI_SENSE_BUFFERSIZE)
+                           ? SCSI_SENSE_BUFFERSIZE
                            : sizeof(dev->fsa_dev[cid].sense_data));
                        scsicmd->scsi_done(scsicmd);
                        return 0;
                int len;
                printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
                len = (le32_to_cpu(srbreply->sense_data_size) > 
-                               sizeof(scsicmd->sense_buffer)) ?
-                               sizeof(scsicmd->sense_buffer) : 
+                               SCSI_SENSE_BUFFERSIZE) ?
+                               SCSI_SENSE_BUFFERSIZE :
                                le32_to_cpu(srbreply->sense_data_size);
                scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
                memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
                int len;
                scsicmd->result |= SAM_STAT_CHECK_CONDITION;
                len = (le32_to_cpu(srbreply->sense_data_size) > 
-                               sizeof(scsicmd->sense_buffer)) ?
-                               sizeof(scsicmd->sense_buffer) :
+                               SCSI_SENSE_BUFFERSIZE) ?
+                               SCSI_SENSE_BUFFERSIZE :
                                le32_to_cpu(srbreply->sense_data_size);
 #ifdef AAC_DETAILED_STATUS_INFO
                printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
 
                        if (scsiqp->scsi_status == SAM_STAT_CHECK_CONDITION) {
                                ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n");
                                ASC_DBG_PRT_SENSE(2, scp->sense_buffer,
-                                                 sizeof(scp->sense_buffer));
+                                                 SCSI_SENSE_BUFFERSIZE);
                                /*
                                 * Note: The 'status_byte()' macro used by
                                 * target drivers defined in scsi.h shifts the
        BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var);
 
        dma_unmap_single(boardp->dev, scp->SCp.dma_handle,
-                       sizeof(scp->sense_buffer), DMA_FROM_DEVICE);
+                        SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
        /*
         * 'qdonep' contains the command's ending status.
         */
                        if (qdonep->d3.scsi_stat == SAM_STAT_CHECK_CONDITION) {
                                ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n");
                                ASC_DBG_PRT_SENSE(2, scp->sense_buffer,
-                                                 sizeof(scp->sense_buffer));
+                                                 SCSI_SENSE_BUFFERSIZE);
                                /*
                                 * Note: The 'status_byte()' macro used by
                                 * target drivers defined in scsi.h shifts the
 {
        struct asc_board *board = shost_priv(scp->device->host);
        scp->SCp.dma_handle = dma_map_single(board->dev, scp->sense_buffer,
-                               sizeof(scp->sense_buffer), DMA_FROM_DEVICE);
+                                            SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
        dma_cache_sync(board->dev, scp->sense_buffer,
-                               sizeof(scp->sense_buffer), DMA_FROM_DEVICE);
+                      SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
        return cpu_to_le32(scp->SCp.dma_handle);
 }
 
        asc_scsi_q->q2.target_ix =
            ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun);
        asc_scsi_q->q1.sense_addr = advansys_get_sense_buffer_dma(scp);
-       asc_scsi_q->q1.sense_len = sizeof(scp->sense_buffer);
+       asc_scsi_q->q1.sense_len = SCSI_SENSE_BUFFERSIZE;
 
        /*
         * If there are any outstanding requests for the current target,
        scsiqp->target_lun = scp->device->lun;
 
        scsiqp->sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0]));
-       scsiqp->sense_len = sizeof(scp->sense_buffer);
+       scsiqp->sense_len = SCSI_SENSE_BUFFERSIZE;
 
        /* Build ADV_SCSI_REQ_Q */
 
 
                   we will still have it in the cdb when we come back */
                if (ccb[mbo].tarstat == 2)
                        memcpy(SCtmp->sense_buffer, &ccb[mbo].cdb[ccb[mbo].cdblen],
-                              sizeof(SCtmp->sense_buffer));
+                              SCSI_SENSE_BUFFERSIZE);
 
 
                /* is there mail :-) */
 #if 0
                /* scsi_request_sense() provides a buffer of size 256,
                   so there is no reason to expect equality */
-               if (bufflen != sizeof(SCpnt->sense_buffer))
+               if (bufflen != SCSI_SENSE_BUFFERSIZE)
                        printk(KERN_CRIT "aha1542: Wrong buffer length supplied "
                               "for request sense (%d)\n", bufflen);
 #endif
 
                           cdb when we come back */
                        if ( (adapstat & G2INTST_MASK) == G2INTST_CCBERROR ) {
                                memcpy(SCtmp->sense_buffer, ecbptr->sense, 
-                                      sizeof(SCtmp->sense_buffer));
+                                      SCSI_SENSE_BUFFERSIZE);
                                errstatus = aha1740_makecode(ecbptr->sense,ecbptr->status);
                        } else
                                errstatus = 0;
 
                        if (scb->flags & SCB_SENSE) {
                                sense_size = min(sizeof(struct scsi_sense_data)
                                               - ahd_get_sense_residual(scb),
-                                                (u_long)sizeof(cmd->sense_buffer));
+                                                (u_long)SCSI_SENSE_BUFFERSIZE);
                                sense_offset = 0;
                        } else {
                                /*
                                    scb->sense_data;
                                sense_size = min_t(size_t,
                                                scsi_4btoul(siu->sense_length),
-                                               sizeof(cmd->sense_buffer));
+                                               SCSI_SENSE_BUFFERSIZE);
                                sense_offset = SIU_SENSE_OFFSET(siu);
                        }
 
-                       memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+                       memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
                        memcpy(cmd->sense_buffer,
                               ahd_get_sense_buf(ahd, scb)
                               + sense_offset, sense_size);
 
 
                        sense_size = min(sizeof(struct scsi_sense_data)
                                       - ahc_get_sense_residual(scb),
-                                        (u_long)sizeof(cmd->sense_buffer));
+                                        (u_long)SCSI_SENSE_BUFFERSIZE);
                        memcpy(cmd->sense_buffer,
                               ahc_get_sense_buf(ahc, scb), sense_size);
-                       if (sense_size < sizeof(cmd->sense_buffer))
+                       if (sense_size < SCSI_SENSE_BUFFERSIZE)
                                memset(&cmd->sense_buffer[sense_size], 0,
-                                      sizeof(cmd->sense_buffer) - sense_size);
+                                      SCSI_SENSE_BUFFERSIZE - sense_size);
                        cmd->result |= (DRIVER_SENSE << 24);
 #ifdef AHC_DEBUG
                        if (ahc_debug & AHC_SHOW_SENSE) {
 
   {
     pci_unmap_single(p->pdev,
                      le32_to_cpu(scb->sg_list[0].address),
-                     sizeof(cmd->sense_buffer),
+                     SCSI_SENSE_BUFFERSIZE,
                      PCI_DMA_FROMDEVICE);
   }
   if (scb->flags & SCB_RECOVERY_SCB)
                        sizeof(generic_sense));
 
                 scb->sense_cmd[1] = (cmd->device->lun << 5);
-                scb->sense_cmd[4] = sizeof(cmd->sense_buffer);
+                scb->sense_cmd[4] = SCSI_SENSE_BUFFERSIZE;
 
                 scb->sg_list[0].length = 
-                  cpu_to_le32(sizeof(cmd->sense_buffer));
+                  cpu_to_le32(SCSI_SENSE_BUFFERSIZE);
                scb->sg_list[0].address =
                         cpu_to_le32(pci_map_single(p->pdev, cmd->sense_buffer,
-                                                   sizeof(cmd->sense_buffer),
+                                                   SCSI_SENSE_BUFFERSIZE,
                                                    PCI_DMA_FROMDEVICE));
 
                 /*
                 hscb->residual_data_count[2] = 0;
 
                 scb->sg_count = hscb->SG_segment_count = 1;
-                scb->sg_length = sizeof(cmd->sense_buffer);
+                scb->sg_length = SCSI_SENSE_BUFFERSIZE;
                 scb->tag_action = 0;
                 scb->flags |= SCB_SENSE;
                 /*
 
        pcmd->result = DID_OK << 16;
        if (sensebuffer) {
                int sense_data_length =
-                       sizeof(struct SENSE_DATA) < sizeof(pcmd->sense_buffer)
-                       ? sizeof(struct SENSE_DATA) : sizeof(pcmd->sense_buffer);
-               memset(sensebuffer, 0, sizeof(pcmd->sense_buffer));
+                       sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE
+                       ? sizeof(struct SENSE_DATA) : SCSI_SENSE_BUFFERSIZE;
+               memset(sensebuffer, 0, SCSI_SENSE_BUFFERSIZE);
                memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length);
                sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
                sensebuffer->Valid = 1;
 
                DC395x_write8(acb, TRM_S1040_SCSI_FIFO, (dcb->target_lun << 5));
                DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
                DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
-               DC395x_write8(acb, TRM_S1040_SCSI_FIFO,
-                             sizeof(srb->cmd->sense_buffer));
+               DC395x_write8(acb, TRM_S1040_SCSI_FIFO, SCSI_SENSE_BUFFERSIZE);
                DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
        } else {
                ptr = (u8 *)srb->cmd->cmnd;
                DC395x_write8(acb, TRM_S1040_SCSI_FIFO, (dcb->target_lun << 5));
                DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
                DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
-               DC395x_write8(acb, TRM_S1040_SCSI_FIFO,
-                             sizeof(srb->cmd->sense_buffer));
+               DC395x_write8(acb, TRM_S1040_SCSI_FIFO, SCSI_SENSE_BUFFERSIZE);
                DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
        }
        srb->state |= SRB_COMMAND;
        srb->target_status = 0;
 
        /* KG: Can this prevent crap sense data ? */
-       memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+       memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 
        /* Save some data */
        srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].address =
            srb->segment_x[0].length;
        srb->xferred = srb->total_xfer_length;
        /* srb->segment_x : a one entry of S/G list table */
-       srb->total_xfer_length = sizeof(cmd->sense_buffer);
-       srb->segment_x[0].length = sizeof(cmd->sense_buffer);
+       srb->total_xfer_length = SCSI_SENSE_BUFFERSIZE;
+       srb->segment_x[0].length = SCSI_SENSE_BUFFERSIZE;
        /* Map sense buffer */
        srb->segment_x[0].address =
            pci_map_single(acb->dev, cmd->sense_buffer,
-                          sizeof(cmd->sense_buffer), PCI_DMA_FROMDEVICE);
+                          SCSI_SENSE_BUFFERSIZE, PCI_DMA_FROMDEVICE);
        dprintkdbg(DBG_SG, "request_sense: map buffer %p->%08x(%05x)\n",
               cmd->sense_buffer, srb->segment_x[0].address,
-              sizeof(cmd->sense_buffer));
+              SCSI_SENSE_BUFFERSIZE);
        srb->sg_count = 1;
        srb->sg_index = 0;
 
 
 
                // copy over the request sense data if it was a check
                // condition status
-               if(dev_status == 0x02 /*CHECK_CONDITION*/) {
-                       u32 len = sizeof(cmd->sense_buffer);
-                       len = (len > 40) ?  40 : len;
+               if (dev_status == 0x02 /*CHECK_CONDITION*/) {
+                       u32 len = min(SCSI_SENSE_BUFFERSIZE, 40);
                        // Copy over the sense data
                        memcpy_fromio(cmd->sense_buffer, (reply+28) , len);
                        if(cmd->sense_buffer[0] == 0x70 /* class 7 */ && 
 
        if (SCpnt->sense_buffer)
                cpp->sense_addr =
                    H2DEV(pci_map_single(ha->pdev, SCpnt->sense_buffer,
-                          sizeof SCpnt->sense_buffer, PCI_DMA_FROMDEVICE));
+                          SCSI_SENSE_BUFFERSIZE, PCI_DMA_FROMDEVICE));
 
-       cpp->sense_len = sizeof SCpnt->sense_buffer;
+       cpp->sense_len = SCSI_SENSE_BUFFERSIZE;
 
        count = scsi_dma_map(SCpnt);
        BUG_ON(count < 0);
 
                        scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
                scp->result = SAM_STAT_CHECK_CONDITION;
                memcpy(&scp->sense_buffer, &req->sg_list,
-                               min_t(size_t, sizeof(scp->sense_buffer),
+                               min_t(size_t, SCSI_SENSE_BUFFERSIZE,
                                        le32_to_cpu(req->dataxfer_length)));
                break;
 
 
                                            (IPS_DCDB_TABLE_TAPE *) & scb->dcdb;
                                        memcpy(scb->scsi_cmd->sense_buffer,
                                               tapeDCDB->sense_info,
-                                              sizeof (scb->scsi_cmd->
-                                                      sense_buffer));
+                                              SCSI_SENSE_BUFFERSIZE);
                                } else {
                                        memcpy(scb->scsi_cmd->sense_buffer,
                                               scb->dcdb.sense_info,
-                                              sizeof (scb->scsi_cmd->
-                                                      sense_buffer));
+                                              SCSI_SENSE_BUFFERSIZE);
                                }
                                device_error = 2;       /* check condition */
                        }
 
                **      Copy back sense data to caller's buffer.
                */
                memcpy(cmd->sense_buffer, cp->sense_buf,
-                      min(sizeof(cmd->sense_buffer), sizeof(cp->sense_buf)));
+                      min_t(size_t, SCSI_SENSE_BUFFERSIZE,
+                            sizeof(cp->sense_buf)));
 
                if (DEBUG_FLAGS & (DEBUG_RESULT|DEBUG_TINY)) {
                        u_char * p = (u_char*) & cmd->sense_buffer;
 
 #define        CMD_CDBLEN(Cmnd)        Cmnd->cmd_len
 #define        CMD_CDBP(Cmnd)          Cmnd->cmnd
 #define        CMD_SNSP(Cmnd)          Cmnd->sense_buffer
-#define        CMD_SNSLEN(Cmnd)        sizeof(Cmnd->sense_buffer)
+#define        CMD_SNSLEN(Cmnd)        SCSI_SENSE_BUFFERSIZE
 #define        CMD_RESULT(Cmnd)        Cmnd->result
 #define        CMD_HANDLE(Cmnd)        Cmnd->host_scribble
 #define CMD_REQUEST(Cmnd)      Cmnd->request->cmd
                        } else
                                sense_sz = 0;
                        memset(cmd->sense_buffer + sense_sz, 0,
-                              sizeof(cmd->sense_buffer) - sense_sz);
+                              SCSI_SENSE_BUFFERSIZE - sense_sz);
 
                        dprintk(2, "qla1280_status_entry: Check "
                                "condition Sense data, b %i, t %i, "
 
                        break;
 
                /* Copy Sense Data into sense buffer. */
-               memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));
+               memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 
                if (!(scsi_status & SS_SENSE_LEN_VALID))
                        break;
 
-               if (sense_len >= sizeof(cp->sense_buffer))
-                       sense_len = sizeof(cp->sense_buffer);
+               if (sense_len >= SCSI_SENSE_BUFFERSIZE)
+                       sense_len = SCSI_SENSE_BUFFERSIZE;
 
                CMD_ACTUAL_SNSLEN(cp) = sense_len;
                sp->request_sense_length = sense_len;
                                break;
 
                        /* Copy Sense Data into sense buffer */
-                       memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));
+                       memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 
                        if (!(scsi_status & SS_SENSE_LEN_VALID))
                                break;
 
-                       if (sense_len >= sizeof(cp->sense_buffer))
-                               sense_len = sizeof(cp->sense_buffer);
+                       if (sense_len >= SCSI_SENSE_BUFFERSIZE)
+                               sense_len = SCSI_SENSE_BUFFERSIZE;
 
                        CMD_ACTUAL_SNSLEN(cp) = sense_len;
                        sp->request_sense_length = sense_len;
 
                        break;
 
                /* Copy Sense Data into sense buffer. */
-               memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+               memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 
                sensebytecnt = le16_to_cpu(sts_entry->senseDataByteCnt);
                if (sensebytecnt == 0)
                        break;
 
                memcpy(cmd->sense_buffer, sts_entry->senseData,
-                      min(sensebytecnt,
-                          (uint16_t) sizeof(cmd->sense_buffer)));
+                      min_t(uint16_t, sensebytecnt, SCSI_SENSE_BUFFERSIZE));
 
                DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, "
                              "ASC/ASCQ = %02x/%02x\n", ha->host_no,
                                break;
 
                        /* Copy Sense Data into sense buffer. */
-                       memset(cmd->sense_buffer, 0,
-                              sizeof(cmd->sense_buffer));
+                       memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 
                        sensebytecnt =
                                le16_to_cpu(sts_entry->senseDataByteCnt);
                                break;
 
                        memcpy(cmd->sense_buffer, sts_entry->senseData,
-                              min(sensebytecnt,
-                                  (uint16_t) sizeof(cmd->sense_buffer)));
+                              min_t(uint16_t, sensebytecnt, SCSI_SENSE_BUFFERSIZE));
 
                        DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, "
                                      "ASC/ASCQ = %02x/%02x\n", ha->host_no,
 
 
                if (sts->state_flags & SF_GOT_SENSE)
                        memcpy(Cmnd->sense_buffer, sts->req_sense_data,
-                              sizeof(Cmnd->sense_buffer));
+                              SCSI_SENSE_BUFFERSIZE);
 
                if (sts->hdr.entry_type == ENTRY_STATUS)
                        Cmnd->result =
 
 
        if (sense_bytes) {
                scmd->request_bufflen = min_t(unsigned,
-                                      sizeof(scmd->sense_buffer), sense_bytes);
+                                      SCSI_SENSE_BUFFERSIZE, sense_bytes);
                sg_init_one(&ses->sense_sgl, scmd->sense_buffer,
                                                       scmd->request_bufflen);
                scmd->request_buffer = &ses->sense_sgl;
         * Zero the sense buffer.  The scsi spec mandates that any
         * untransferred sense data should be interpreted as being zero.
         */
-       memset(scmd->sense_buffer, 0, sizeof(scmd->sense_buffer));
+       memset(scmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 }
 EXPORT_SYMBOL(scsi_eh_prep_cmnd);
 
                                 struct scsi_sense_hdr *sshdr)
 {
        return scsi_normalize_sense(cmd->sense_buffer,
-                       sizeof(cmd->sense_buffer), sshdr);
+                       SCSI_SENSE_BUFFERSIZE, sshdr);
 }
 EXPORT_SYMBOL(scsi_command_normalize_sense);
 
 
 {
        cmd->serial_number = 0;
        cmd->resid = 0;
-       memset(cmd->sense_buffer, 0, sizeof cmd->sense_buffer);
+       memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
        if (cmd->cmd_len == 0)
                cmd->cmd_len = COMMAND_SIZE(cmd->cmnd[0]);
 }
 
                        /*
                         *  Bounce back the sense data to user.
                         */
-                       memset(&cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+                       memset(&cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
                        memcpy(cmd->sense_buffer, cp->sns_bbuf,
-                             min(sizeof(cmd->sense_buffer),
-                                 (size_t)SYM_SNS_BBUF_LEN));
+                              min(SCSI_SENSE_BUFFERSIZE, SYM_SNS_BBUF_LEN));
 #if 0
                        /*
                         *  If the device reports a UNIT ATTENTION condition 
 
 
        /* Map sense buffer */
        if (pSRB->SRBFlag & AUTO_REQSENSE) {
-               pSRB->pSegmentList      = dc390_sg_build_single(&pSRB->Segmentx, pcmd->sense_buffer, sizeof(pcmd->sense_buffer));
+               pSRB->pSegmentList      = dc390_sg_build_single(&pSRB->Segmentx, pcmd->sense_buffer, SCSI_SENSE_BUFFERSIZE);
                pSRB->SGcount           = pci_map_sg(pdev, pSRB->pSegmentList, 1,
                                                     DMA_FROM_DEVICE);
                cmdp->saved_dma_handle  = sg_dma_address(pSRB->pSegmentList);
            DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5);
            DC390_write8 (ScsiFifo, 0);
            DC390_write8 (ScsiFifo, 0);
-           DC390_write8 (ScsiFifo, sizeof(scmd->sense_buffer));
+           DC390_write8 (ScsiFifo, SCSI_SENSE_BUFFERSIZE);
            DC390_write8 (ScsiFifo, 0);
            DEBUG1(printk (KERN_DEBUG "DC390: AutoReqSense !\n"));
          }
        DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5);
        DC390_write8 (ScsiFifo, 0);
        DC390_write8 (ScsiFifo, 0);
-       DC390_write8 (ScsiFifo, sizeof(pSRB->pcmd->sense_buffer));
+       DC390_write8 (ScsiFifo, SCSI_SENSE_BUFFERSIZE);
        DC390_write8 (ScsiFifo, 0);
        DEBUG0(printk(KERN_DEBUG "DC390: AutoReqSense (CmndPhase)!\n"));
     }
 
 
    if (SCpnt->sense_buffer)
       cpp->sense_addr = H2DEV(pci_map_single(HD(j)->pdev, SCpnt->sense_buffer,
-                           sizeof SCpnt->sense_buffer, PCI_DMA_FROMDEVICE));
+                           SCSI_SENSE_BUFFERSIZE, PCI_DMA_FROMDEVICE));
 
-   cpp->sense_len = sizeof SCpnt->sense_buffer;
+   cpp->sense_len = SCSI_SENSE_BUFFERSIZE;
 
    if (scsi_bufflen(SCpnt)) {
           count = scsi_dma_map(SCpnt);
 
     }
     my_mscp->command_link = 0;         /*???*/
     my_mscp->scsi_command_link_id = 0; /*???*/
-    my_mscp->length_of_sense_byte = sizeof SCpnt->sense_buffer;
+    my_mscp->length_of_sense_byte = SCSI_SENSE_BUFFERSIZE;
     my_mscp->length_of_scsi_cdbs = SCpnt->cmd_len;
     memcpy(my_mscp->scsi_cdbs, SCpnt->cmnd, my_mscp->length_of_scsi_cdbs);
     my_mscp->adapter_status = 0;