Merge branch '5.14/scsi-result' into 5.14/scsi-staging

Include Hannes' SCSI command result rework in the staging branch.

[mkp: remove DRIVER_SENSE from mpi3mr]

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

84 files changed, 916 insertions, 1084 deletions

diff --git a/Documentation/scsi/scsi_mid_low_api.rst b/Documentation/scsi/scsi_mid_low_api.rst
index 096ffe9cae0e..63ddea2b9640 100644
--- a/Documentation/scsi/scsi_mid_low_api.rst
+++ b/Documentation/scsi/scsi_mid_low_api.rst
@@ -1172,10 +1172,9 @@ Members of interest:
                    of 0 implies a successfully completed command (and all
                    data (if any) has been transferred to or from the SCSI
                    target device). 'result' is a 32 bit unsigned integer that
-                   can be viewed as 4 related bytes. The SCSI status value is
-                   in the LSB. See include/scsi/scsi.h status_byte(),
-                   msg_byte(), host_byte() and driver_byte() macros and
-                   related constants.
+                   can be viewed as 2 related bytes. The SCSI status value is
+                   in the LSB. See include/scsi/scsi.h status_byte() and
+                   host_byte() macros and related constants.
     sense_buffer
 		 - an array (maximum size: SCSI_SENSE_BUFFERSIZE bytes) that
                    should be written when the SCSI status (LSB of 'result')
diff --git a/block/bsg-lib.c b/block/bsg-lib.c
index 330fede77271..cf1811261722 100644
--- a/block/bsg-lib.c
+++ b/block/bsg-lib.c
@@ -84,7 +84,7 @@ static int bsg_transport_complete_rq(struct request *rq, struct sg_io_v4 *hdr)
 	 */
 	hdr->device_status = job->result & 0xff;
 	hdr->transport_status = host_byte(job->result);
-	hdr->driver_status = driver_byte(job->result);
+	hdr->driver_status = 0;
 	hdr->info = 0;
 	if (hdr->device_status || hdr->transport_status || hdr->driver_status)
 		hdr->info |= SG_INFO_CHECK;
diff --git a/block/bsg.c b/block/bsg.c
index bd10922d5cbb..33e3f82ed03a 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -96,7 +96,9 @@ static int bsg_scsi_complete_rq(struct request *rq, struct sg_io_v4 *hdr)
 	 */
 	hdr->device_status = sreq->result & 0xff;
 	hdr->transport_status = host_byte(sreq->result);
-	hdr->driver_status = driver_byte(sreq->result);
+	hdr->driver_status = 0;
+	if (scsi_status_is_check_condition(sreq->result))
+		hdr->driver_status = DRIVER_SENSE;
 	hdr->info = 0;
 	if (hdr->device_status || hdr->transport_status || hdr->driver_status)
 		hdr->info |= SG_INFO_CHECK;
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 1b3fe99b83a6..fa6df11b8bdd 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -254,9 +254,11 @@ static int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr,
 	 */
 	hdr->status = req->result & 0xff;
 	hdr->masked_status = status_byte(req->result);
-	hdr->msg_status = msg_byte(req->result);
+	hdr->msg_status = COMMAND_COMPLETE;
 	hdr->host_status = host_byte(req->result);
-	hdr->driver_status = driver_byte(req->result);
+	hdr->driver_status = 0;
+	if (scsi_status_is_check_condition(hdr->status))
+		hdr->driver_status = DRIVER_SENSE;
 	hdr->info = 0;
 	if (hdr->masked_status || hdr->host_status || hdr->driver_status)
 		hdr->info |= SG_INFO_CHECK;
@@ -484,9 +486,10 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
 		break;
 	}
 
-	if (bytes && blk_rq_map_kern(q, rq, buffer, bytes, GFP_NOIO)) {
-		err = DRIVER_ERROR << 24;
-		goto error;
+	if (bytes) {
+		err = blk_rq_map_kern(q, rq, buffer, bytes, GFP_NOIO);
+		if (err)
+			goto error;
 	}
 
 	blk_execute_rq(disk, rq, 0);
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index fd8b6febbf70..b9588c52815d 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -196,9 +196,7 @@ void ata_scsi_set_sense(struct ata_device *dev, struct scsi_cmnd *cmd,
 	if (!cmd)
 		return;
 
-	cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
-
-	scsi_build_sense_buffer(d_sense, cmd->sense_buffer, sk, asc, ascq);
+	scsi_build_sense(cmd, d_sense, sk, asc, ascq);
 }
 
 void ata_scsi_set_sense_information(struct ata_device *dev,
@@ -409,13 +407,16 @@ int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg)
 	cmd_result = scsi_execute(scsidev, scsi_cmd, data_dir, argbuf, argsize,
 				  sensebuf, &sshdr, (10*HZ), 5, 0, 0, NULL);
 
-	if (driver_byte(cmd_result) == DRIVER_SENSE) {/* sense data available */
+	if (cmd_result < 0) {
+		rc = cmd_result;
+		goto error;
+	}
+	if (scsi_sense_valid(&sshdr)) {/* sense data available */
 		u8 *desc = sensebuf + 8;
-		cmd_result &= ~(0xFF<<24); /* DRIVER_SENSE is not an error */
 
 		/* If we set cc then ATA pass-through will cause a
 		 * check condition even if no error. Filter that. */
-		if (cmd_result & SAM_STAT_CHECK_CONDITION) {
+		if (scsi_status_is_check_condition(cmd_result)) {
 			if (sshdr.sense_key == RECOVERED_ERROR &&
 			    sshdr.asc == 0 && sshdr.ascq == 0x1d)
 				cmd_result &= ~SAM_STAT_CHECK_CONDITION;
@@ -490,9 +491,12 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg)
 	cmd_result = scsi_execute(scsidev, scsi_cmd, DMA_NONE, NULL, 0,
 				sensebuf, &sshdr, (10*HZ), 5, 0, 0, NULL);
 
-	if (driver_byte(cmd_result) == DRIVER_SENSE) {/* sense data available */
+	if (cmd_result < 0) {
+		rc = cmd_result;
+		goto error;
+	}
+	if (scsi_sense_valid(&sshdr)) {/* sense data available */
 		u8 *desc = sensebuf + 8;
-		cmd_result &= ~(0xFF<<24); /* DRIVER_SENSE is not an error */
 
 		/* If we set cc then ATA pass-through will cause a
 		 * check condition even if no error. Filter that. */
@@ -638,7 +642,7 @@ static struct ata_queued_cmd *ata_scsi_qc_new(struct ata_device *dev,
 		if (cmd->request->rq_flags & RQF_QUIET)
 			qc->flags |= ATA_QCFLAG_QUIET;
 	} else {
-		cmd->result = (DID_OK << 16) | (QUEUE_FULL << 1);
+		cmd->result = (DID_OK << 16) | SAM_STAT_TASK_SET_FULL;
 		cmd->scsi_done(cmd);
 	}
 
@@ -858,8 +862,6 @@ static void ata_gen_passthru_sense(struct ata_queued_cmd *qc)
 
 	memset(sb, 0, SCSI_SENSE_BUFFERSIZE);
 
-	cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
-
 	/*
 	 * Use ata_to_sense_error() to map status register bits
 	 * onto sense key, asc & ascq.
@@ -874,8 +876,7 @@ static void ata_gen_passthru_sense(struct ata_queued_cmd *qc)
 		 * ATA PASS-THROUGH INFORMATION AVAILABLE
 		 * Always in descriptor format sense.
 		 */
-		scsi_build_sense_buffer(1, cmd->sense_buffer,
-					RECOVERED_ERROR, 0, 0x1D);
+		scsi_build_sense(cmd, 1, RECOVERED_ERROR, 0, 0x1D);
 	}
 
 	if ((cmd->sense_buffer[0] & 0x7f) >= 0x72) {
@@ -957,8 +958,6 @@ static void ata_gen_ata_sense(struct ata_queued_cmd *qc)
 
 	memset(sb, 0, SCSI_SENSE_BUFFERSIZE);
 
-	cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
-
 	if (ata_dev_disabled(dev)) {
 		/* Device disabled after error recovery */
 		/* LOGICAL UNIT NOT READY, HARD RESET REQUIRED */
@@ -4196,7 +4195,6 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
 
 	case REQUEST_SENSE:
 		ata_scsi_set_sense(dev, cmd, 0, 0, 0);
-		cmd->result = (DRIVER_SENSE << 24);
 		break;
 
 	/* if we reach this, then writeback caching is disabled,
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 31f8aa2c40ed..62d9b70f7c63 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2232,7 +2232,7 @@ static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd)
 		 * to reduce queue depth temporarily.
 		 */
 		scmnd->result = len == -ENOMEM ?
-			DID_OK << 16 | QUEUE_FULL << 1 : DID_ERROR << 16;
+			DID_OK << 16 | SAM_STAT_TASK_SET_FULL : DID_ERROR << 16;
 		goto err_iu;
 	}
 
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index d58bf79892f2..9da9b2b2a580 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -856,10 +856,7 @@ void zfcp_scsi_set_prot(struct zfcp_adapter *adapter)
  */
 void zfcp_scsi_dif_sense_error(struct scsi_cmnd *scmd, int ascq)
 {
-	scsi_build_sense_buffer(1, scmd->sense_buffer,
-				ILLEGAL_REQUEST, 0x10, ascq);
-	set_driver_byte(scmd, DRIVER_SENSE);
-	scmd->result |= SAM_STAT_CHECK_CONDITION;
+	scsi_build_sense(scmd, 1, ILLEGAL_REQUEST, 0x10, ascq);
 	set_host_byte(scmd, DID_SOFT_ERROR);
 }
 
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 2b4b629a6e96..e41cc354cc8a 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -1338,7 +1338,7 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance)
 				/* If error, command failed */
 				if (error == 1) {
 					/* Ask for a host reset */
-					cmd->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
+					cmd->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION;
 				}
 
 				/* Report residual bytes for single sgl */
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index a7292883b72b..4ee485ab2714 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -429,7 +429,7 @@ static int tw_decode_sense(TW_Device_Extension *tw_dev, int request_id, int fill
 					/* Additional sense code qualifier */
 					tw_dev->srb[request_id]->sense_buffer[13] = tw_sense_table[i][3];
 
-					tw_dev->srb[request_id]->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
+					tw_dev->srb[request_id]->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION;
 					return TW_ISR_DONT_RESULT; /* Special case for isr to not over-write result */
 				}
 			}
@@ -1977,7 +1977,7 @@ static int tw_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_c
 		printk(KERN_NOTICE "3w-xxxx: scsi%d: Unknown scsi opcode: 0x%x\n", tw_dev->host->host_no, *command);
 		tw_dev->state[request_id] = TW_S_COMPLETED;
 		tw_state_request_finish(tw_dev, request_id);
-		scsi_build_sense_buffer(1, SCpnt->sense_buffer, ILLEGAL_REQUEST, 0x20, 0);
+		scsi_build_sense(SCpnt, 1, ILLEGAL_REQUEST, 0x20, 0);
 		done(SCpnt);
 		retval = 0;
 	}
@@ -2159,7 +2159,7 @@ static irqreturn_t tw_interrupt(int irq, void *dev_instance)
 				/* If error, command failed */
 				if (error == 1) {
 					/* Ask for a host reset */
-					tw_dev->srb[request_id]->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
+					tw_dev->srb[request_id]->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION;
 				}
 
 				/* Now complete the io */
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 77ccb96e5ed4..1c6b4e672687 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -978,10 +978,10 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
 		if (NCR_700_get_tag_neg_state(SCp->device) == NCR_700_DURING_TAG_NEGOTIATION)
 			NCR_700_set_tag_neg_state(SCp->device,
 						  NCR_700_FINISHED_TAG_NEGOTIATION);
-			
+
 		/* check for contingent allegiance conditions */
-		if (hostdata->status[0] >> 1 == CHECK_CONDITION ||
-		    hostdata->status[0] >> 1 == COMMAND_TERMINATED) {
+		if (hostdata->status[0] == SAM_STAT_CHECK_CONDITION ||
+		    hostdata->status[0] == SAM_STAT_COMMAND_TERMINATED) {
 			struct NCR_700_command_slot *slot =
 				(struct NCR_700_command_slot *)SCp->host_scribble;
 			if(slot->flags == NCR_700_FLAG_AUTOSENSE) {
diff --git a/drivers/scsi/FlashPoint.c b/drivers/scsi/FlashPoint.c
index 2e25ef67825a..90253208a72f 100644
--- a/drivers/scsi/FlashPoint.c
+++ b/drivers/scsi/FlashPoint.c
@@ -304,40 +304,12 @@ typedef struct SCCBscam_info {
 
 } SCCBSCAM_INFO;
 
-#define  SCSI_REQUEST_SENSE      0x03
-#define  SCSI_READ               0x08
-#define  SCSI_WRITE              0x0A
-#define  SCSI_START_STOP_UNIT    0x1B
-#define  SCSI_READ_EXTENDED      0x28
-#define  SCSI_WRITE_EXTENDED     0x2A
-#define  SCSI_WRITE_AND_VERIFY   0x2E
-
-#define  SSGOOD                  0x00
-#define  SSCHECK                 0x02
-#define  SSQ_FULL                0x28
-
-#define  SMCMD_COMP              0x00
-#define  SMEXT                   0x01
-#define  SMSAVE_DATA_PTR         0x02
-#define  SMREST_DATA_PTR         0x03
-#define  SMDISC                  0x04
-#define  SMABORT                 0x06
-#define  SMREJECT                0x07
-#define  SMNO_OP                 0x08
-#define  SMPARITY                0x09
-#define  SMDEV_RESET             0x0C
-#define	SMABORT_TAG					0x0D
-#define	SMINIT_RECOVERY			0x0F
-#define	SMREL_RECOVERY				0x10
 
 #define  SMIDENT                 0x80
 #define  DISC_PRIV               0x40
 
-#define  SMSYNC                  0x01
-#define  SMWDTR                  0x03
 #define  SM8BIT                  0x00
 #define  SM16BIT                 0x01
-#define  SMIGNORWR               0x23	/* Ignore Wide Residue */
 
 #define  SIX_BYTE_CMD            0x06
 #define  TWELVE_BYTE_CMD         0x0C
@@ -1660,7 +1632,7 @@ static int FlashPoint_AbortCCB(void *pCurrCard, struct sccb *p_Sccb)
 						p_Sccb->Sccb_scsistat =
 						    ABORT_ST;
 						p_Sccb->Sccb_scsimsg =
-						    SMABORT_TAG;
+						    ABORT_TASK;
 
 						if (((struct sccb_card *)
 						     pCurrCard)->currentSCCB ==
@@ -1812,7 +1784,7 @@ static int FlashPoint_HandleInterrupt(void *pcard)
 				FPT_phaseChkFifo(ioport, thisCard);
 
 			if (RD_HARPOON(ioport + hp_gp_reg_1) ==
-					SMSAVE_DATA_PTR) {
+					SAVE_POINTERS) {
 
 				WR_HARPOON(ioport + hp_gp_reg_1, 0x00);
 				currSCCB->Sccb_XferState |= F_NO_DATA_YET;
@@ -1865,7 +1837,7 @@ static int FlashPoint_HandleInterrupt(void *pcard)
 					FPT_phaseChkFifo(ioport, thisCard);
 
 				if (RD_HARPOON(ioport + hp_gp_reg_1) ==
-				    SMSAVE_DATA_PTR) {
+				    SAVE_POINTERS) {
 					WR_HARPOON(ioport + hp_gp_reg_1, 0x00);
 					currSCCB->Sccb_XferState |=
 					    F_NO_DATA_YET;
@@ -2258,7 +2230,7 @@ static unsigned char FPT_sfm(u32 port, struct sccb *pCurrSCCB)
 		WR_HARPOON(port + hp_fiforead, 0);
 		WR_HARPOON(port + hp_fifowrite, 0);
 		if (pCurrSCCB != NULL) {
-			pCurrSCCB->Sccb_scsimsg = SMPARITY;
+			pCurrSCCB->Sccb_scsimsg = MSG_PARITY_ERROR;
 		}
 		message = 0x00;
 		do {
@@ -2411,7 +2383,7 @@ static void FPT_ssel(u32 port, unsigned char p_card)
 
 		WRW_HARPOON((port + ID_MSG_STRT + 2), BRH_OP + ALWAYS + NP);
 
-		currSCCB->Sccb_scsimsg = SMDEV_RESET;
+		currSCCB->Sccb_scsimsg = TARGET_RESET;
 
 		WR_HARPOON(port + hp_autostart_3, (SELECT + SELCHK_STRT));
 		auto_loaded = 1;
@@ -2758,9 +2730,9 @@ static void FPT_sres(u32 port, unsigned char p_card,
 		if (message == 0) {
 			msgRetryCount++;
 			if (msgRetryCount == 1) {
-				FPT_SendMsg(port, SMPARITY);
+				FPT_SendMsg(port, MSG_PARITY_ERROR);
 			} else {
-				FPT_SendMsg(port, SMDEV_RESET);
+				FPT_SendMsg(port, TARGET_RESET);
 
 				FPT_sssyncv(port, our_target, NARROW_SCSI,
 					    currTar_Info);
@@ -2860,8 +2832,8 @@ static void FPT_SendMsg(u32 port, unsigned char message)
 
 		WR_HARPOON(port + hp_portctrl_0, 0x00);
 
-		if ((message == SMABORT) || (message == SMDEV_RESET) ||
-		    (message == SMABORT_TAG)) {
+		if ((message == ABORT_TASK_SET) || (message == TARGET_RESET) ||
+		    (message == ABORT_TASK)) {
 			while (!
 			       (RDW_HARPOON((port + hp_intstat)) &
 				(BUS_FREE | PHASE))) {
@@ -2893,7 +2865,7 @@ static void FPT_sdecm(unsigned char message, u32 port, unsigned char p_card)
 
 	currTar_Info = &FPT_sccbMgrTbl[p_card][currSCCB->TargID];
 
-	if (message == SMREST_DATA_PTR) {
+	if (message == RESTORE_POINTERS) {
 		if (!(currSCCB->Sccb_XferState & F_NO_DATA_YET)) {
 			currSCCB->Sccb_ATC = currSCCB->Sccb_savedATC;
 
@@ -2905,7 +2877,7 @@ static void FPT_sdecm(unsigned char message, u32 port, unsigned char p_card)
 			   (AUTO_IMMED + DISCONNECT_START));
 	}
 
-	else if (message == SMCMD_COMP) {
+	else if (message == COMMAND_COMPLETE) {
 
 		if (currSCCB->Sccb_scsistat == SELECT_Q_ST) {
 			currTar_Info->TarStatus &=
@@ -2917,15 +2889,16 @@ static void FPT_sdecm(unsigned char message, u32 port, unsigned char p_card)
 
 	}
 
-	else if ((message == SMNO_OP) || (message >= SMIDENT)
-		 || (message == SMINIT_RECOVERY) || (message == SMREL_RECOVERY)) {
+	else if ((message == NOP) || (message >= IDENTIFY_BASE) ||
+		 (message == INITIATE_RECOVERY) ||
+		 (message == RELEASE_RECOVERY)) {
 
 		ACCEPT_MSG(port);
 		WR_HARPOON(port + hp_autostart_1,
 			   (AUTO_IMMED + DISCONNECT_START));
 	}
 
-	else if (message == SMREJECT) {
+	else if (message == MESSAGE_REJECT) {
 
 		if ((currSCCB->Sccb_scsistat == SELECT_SN_ST) ||
 		    (currSCCB->Sccb_scsistat == SELECT_WN_ST) ||
@@ -3026,19 +2999,19 @@ static void FPT_sdecm(unsigned char message, u32 port, unsigned char p_card)
 		}
 	}
 
-	else if (message == SMEXT) {
+	else if (message == EXTENDED_MESSAGE) {
 
 		ACCEPT_MSG(port);
 		FPT_shandem(port, p_card, currSCCB);
 	}
 
-	else if (message == SMIGNORWR) {
+	else if (message == IGNORE_WIDE_RESIDUE) {
 
 		ACCEPT_MSG(port);	/* ACK the RESIDUE MSG */
 
 		message = FPT_sfm(port, currSCCB);
 
-		if (currSCCB->Sccb_scsimsg != SMPARITY)
+		if (currSCCB->Sccb_scsimsg != MSG_PARITY_ERROR)
 			ACCEPT_MSG(port);
 		WR_HARPOON(port + hp_autostart_1,
 			   (AUTO_IMMED + DISCONNECT_START));
@@ -3047,7 +3020,7 @@ static void FPT_sdecm(unsigned char message, u32 port, unsigned char p_card)
 	else {
 
 		currSCCB->HostStatus = SCCB_PHASE_SEQUENCE_FAIL;
-		currSCCB->Sccb_scsimsg = SMREJECT;
+		currSCCB->Sccb_scsimsg = MESSAGE_REJECT;
 
 		ACCEPT_MSG_ATN(port);
 		WR_HARPOON(port + hp_autostart_1,
@@ -3073,7 +3046,7 @@ static void FPT_shandem(u32 port, unsigned char p_card, struct sccb *pCurrSCCB)
 		message = FPT_sfm(port, pCurrSCCB);
 		if (message) {
 
-			if (message == SMSYNC) {
+			if (message == EXTENDED_SDTR) {
 
 				if (length == 0x03) {
 
@@ -3081,10 +3054,10 @@ static void FPT_shandem(u32 port, unsigned char p_card, struct sccb *pCurrSCCB)
 					FPT_stsyncn(port, p_card);
 				} else {
 
-					pCurrSCCB->Sccb_scsimsg = SMREJECT;
+					pCurrSCCB->Sccb_scsimsg = MESSAGE_REJECT;
 					ACCEPT_MSG_ATN(port);
 				}
-			} else if (message == SMWDTR) {
+			} else if (message == EXTENDED_WDTR) {
 
 				if (length == 0x02) {
 
@@ -3092,7 +3065,7 @@ static void FPT_shandem(u32 port, unsigned char p_card, struct sccb *pCurrSCCB)
 					FPT_stwidn(port, p_card);
 				} else {
 
-					pCurrSCCB->Sccb_scsimsg = SMREJECT;
+					pCurrSCCB->Sccb_scsimsg = MESSAGE_REJECT;
 					ACCEPT_MSG_ATN(port);
 
 					WR_HARPOON(port + hp_autostart_1,
@@ -3101,20 +3074,20 @@ static void FPT_shandem(u32 port, unsigned char p_card, struct sccb *pCurrSCCB)
 				}
 			} else {
 
-				pCurrSCCB->Sccb_scsimsg = SMREJECT;
+				pCurrSCCB->Sccb_scsimsg = MESSAGE_REJECT;
 				ACCEPT_MSG_ATN(port);
 
 				WR_HARPOON(port + hp_autostart_1,
 					   (AUTO_IMMED + DISCONNECT_START));
 			}
 		} else {
-			if (pCurrSCCB->Sccb_scsimsg != SMPARITY)
+			if (pCurrSCCB->Sccb_scsimsg != MSG_PARITY_ERROR)
 				ACCEPT_MSG(port);
 			WR_HARPOON(port + hp_autostart_1,
 				   (AUTO_IMMED + DISCONNECT_START));
 		}
 	} else {
-		if (pCurrSCCB->Sccb_scsimsg == SMPARITY)
+		if (pCurrSCCB->Sccb_scsimsg == MSG_PARITY_ERROR)
 			WR_HARPOON(port + hp_autostart_1,
 				   (AUTO_IMMED + DISCONNECT_START));
 	}
@@ -3148,10 +3121,10 @@ static unsigned char FPT_sisyncn(u32 port, unsigned char p_card,
 		WRW_HARPOON((port + ID_MSG_STRT + 2), BRH_OP + ALWAYS + CMDPZ);
 
 		WRW_HARPOON((port + SYNC_MSGS + 0),
-			    (MPM_OP + AMSG_OUT + SMEXT));
+			    (MPM_OP + AMSG_OUT + EXTENDED_MESSAGE));
 		WRW_HARPOON((port + SYNC_MSGS + 2), (MPM_OP + AMSG_OUT + 0x03));
 		WRW_HARPOON((port + SYNC_MSGS + 4),
-			    (MPM_OP + AMSG_OUT + SMSYNC));
+			    (MPM_OP + AMSG_OUT + EXTENDED_SDTR));
 
 		if ((currTar_Info->TarEEValue & EE_SYNC_MASK) == EE_SYNC_20MB)
 
@@ -3221,7 +3194,7 @@ static void FPT_stsyncn(u32 port, unsigned char p_card)
 
 	sync_msg = FPT_sfm(port, currSCCB);
 
-	if ((sync_msg == 0x00) && (currSCCB->Sccb_scsimsg == SMPARITY)) {
+	if ((sync_msg == 0x00) && (currSCCB->Sccb_scsimsg == MSG_PARITY_ERROR)) {
 		WR_HARPOON(port + hp_autostart_1,
 			   (AUTO_IMMED + DISCONNECT_START));
 		return;
@@ -3231,7 +3204,7 @@ static void FPT_stsyncn(u32 port, unsigned char p_card)
 
 	offset = FPT_sfm(port, currSCCB);
 
-	if ((offset == 0x00) && (currSCCB->Sccb_scsimsg == SMPARITY)) {
+	if ((offset == 0x00) && (currSCCB->Sccb_scsimsg == MSG_PARITY_ERROR)) {
 		WR_HARPOON(port + hp_autostart_1,
 			   (AUTO_IMMED + DISCONNECT_START));
 		return;
@@ -3343,9 +3316,11 @@ static void FPT_sisyncr(u32 port, unsigned char sync_pulse,
 			unsigned char offset)
 {
 	ARAM_ACCESS(port);
-	WRW_HARPOON((port + SYNC_MSGS + 0), (MPM_OP + AMSG_OUT + SMEXT));
+	WRW_HARPOON((port + SYNC_MSGS + 0),
+		    (MPM_OP + AMSG_OUT + EXTENDED_MESSAGE));
 	WRW_HARPOON((port + SYNC_MSGS + 2), (MPM_OP + AMSG_OUT + 0x03));
-	WRW_HARPOON((port + SYNC_MSGS + 4), (MPM_OP + AMSG_OUT + SMSYNC));
+	WRW_HARPOON((port + SYNC_MSGS + 4),
+		    (MPM_OP + AMSG_OUT + EXTENDED_SDTR));
 	WRW_HARPOON((port + SYNC_MSGS + 6), (MPM_OP + AMSG_OUT + sync_pulse));
 	WRW_HARPOON((port + SYNC_MSGS + 8), (RAT_OP));
 	WRW_HARPOON((port + SYNC_MSGS + 10), (MPM_OP + AMSG_OUT + offset));
@@ -3388,10 +3363,10 @@ static unsigned char FPT_siwidn(u32 port, unsigned char p_card)
 		WRW_HARPOON((port + ID_MSG_STRT + 2), BRH_OP + ALWAYS + CMDPZ);
 
 		WRW_HARPOON((port + SYNC_MSGS + 0),
-			    (MPM_OP + AMSG_OUT + SMEXT));
+			    (MPM_OP + AMSG_OUT + EXTENDED_MESSAGE));
 		WRW_HARPOON((port + SYNC_MSGS + 2), (MPM_OP + AMSG_OUT + 0x02));
 		WRW_HARPOON((port + SYNC_MSGS + 4),
-			    (MPM_OP + AMSG_OUT + SMWDTR));
+			    (MPM_OP + AMSG_OUT + EXTENDED_WDTR));
 		WRW_HARPOON((port + SYNC_MSGS + 6), (RAT_OP));
 		WRW_HARPOON((port + SYNC_MSGS + 8),
 			    (MPM_OP + AMSG_OUT + SM16BIT));
@@ -3436,7 +3411,7 @@ static void FPT_stwidn(u32 port, unsigned char p_card)
 
 	width = FPT_sfm(port, currSCCB);
 
-	if ((width == 0x00) && (currSCCB->Sccb_scsimsg == SMPARITY)) {
+	if ((width == 0x00) && (currSCCB->Sccb_scsimsg == MSG_PARITY_ERROR)) {
 		WR_HARPOON(port + hp_autostart_1,
 			   (AUTO_IMMED + DISCONNECT_START));
 		return;
@@ -3499,9 +3474,11 @@ static void FPT_stwidn(u32 port, unsigned char p_card)
 static void FPT_siwidr(u32 port, unsigned char width)
 {
 	ARAM_ACCESS(port);
-	WRW_HARPOON((port + SYNC_MSGS + 0), (MPM_OP + AMSG_OUT + SMEXT));
+	WRW_HARPOON((port + SYNC_MSGS + 0),
+		    (MPM_OP + AMSG_OUT + EXTENDED_MESSAGE));
 	WRW_HARPOON((port + SYNC_MSGS + 2), (MPM_OP + AMSG_OUT + 0x02));
-	WRW_HARPOON((port + SYNC_MSGS + 4), (MPM_OP + AMSG_OUT + SMWDTR));
+	WRW_HARPOON((port + SYNC_MSGS + 4),
+		    (MPM_OP + AMSG_OUT + EXTENDED_WDTR));
 	WRW_HARPOON((port + SYNC_MSGS + 6), (RAT_OP));
 	WRW_HARPOON((port + SYNC_MSGS + 8), (MPM_OP + AMSG_OUT + width));
 	WRW_HARPOON((port + SYNC_MSGS + 10), (BRH_OP + ALWAYS + NP));
@@ -3682,7 +3659,7 @@ static void FPT_ssenss(struct sccb_card *pCurrCard)
 	}
 
 	currSCCB->CdbLength = SIX_BYTE_CMD;
-	currSCCB->Cdb[0] = SCSI_REQUEST_SENSE;
+	currSCCB->Cdb[0] = REQUEST_SENSE;
 	currSCCB->Cdb[1] = currSCCB->Cdb[1] & (unsigned char)0xE0;	/*Keep LUN. */
 	currSCCB->Cdb[2] = 0x00;
 	currSCCB->Cdb[3] = 0x00;
@@ -3939,13 +3916,9 @@ static void FPT_sinits(struct sccb *p_sccb, unsigned char p_card)
 */
 	if ((currTar_Info->TarStatus & TAR_ALLOW_DISC) ||
 	    (currTar_Info->TarStatus & TAG_Q_TRYING)) {
-		p_sccb->Sccb_idmsg =
-		    (unsigned char)(SMIDENT | DISC_PRIV) | p_sccb->Lun;
-	}
-
-	else {
-
-		p_sccb->Sccb_idmsg = (unsigned char)SMIDENT | p_sccb->Lun;
+		p_sccb->Sccb_idmsg = IDENTIFY(true, p_sccb->Lun);
+	} else {
+		p_sccb->Sccb_idmsg = IDENTIFY(false, p_sccb->Lun);
 	}
 
 	p_sccb->HostStatus = 0x00;
@@ -3962,7 +3935,7 @@ static void FPT_sinits(struct sccb *p_sccb, unsigned char p_card)
  */
 	p_sccb->Sccb_scsistat = BUS_FREE_ST;
 	p_sccb->SccbStatus = SCCB_IN_PROCESS;
-	p_sccb->Sccb_scsimsg = SMNO_OP;
+	p_sccb->Sccb_scsimsg = NOP;
 
 }
 
@@ -4167,7 +4140,7 @@ static void FPT_phaseMsgOut(u32 port, unsigned char p_card)
 		message = currSCCB->Sccb_scsimsg;
 		scsiID = currSCCB->TargID;
 
-		if (message == SMDEV_RESET) {
+		if (message == TARGET_RESET) {
 
 			currTar_Info = &FPT_sccbMgrTbl[p_card][scsiID];
 			currTar_Info->TarSyncCtrl = 0;
@@ -4203,7 +4176,7 @@ static void FPT_phaseMsgOut(u32 port, unsigned char p_card)
 
 		else if (currSCCB->Sccb_scsistat < COMMAND_ST) {
 
-			if (message == SMNO_OP) {
+			if (message == NOP) {
 				currSCCB->Sccb_MGRFlags |= F_DEV_SELECTED;
 
 				FPT_ssel(port, p_card);
@@ -4211,13 +4184,13 @@ static void FPT_phaseMsgOut(u32 port, unsigned char p_card)
 			}
 		} else {
 
-			if (message == SMABORT)
+			if (message == ABORT_TASK_SET)
 
 				FPT_queueFlushSccb(p_card, SCCB_COMPLETE);
 		}
 
 	} else {
-		message = SMABORT;
+		message = ABORT_TASK_SET;
 	}
 
 	WRW_HARPOON((port + hp_intstat), (BUS_FREE | PHASE | XFER_CNT_0));
@@ -4232,8 +4205,8 @@ static void FPT_phaseMsgOut(u32 port, unsigned char p_card)
 
 	WR_HARPOON(port + hp_portctrl_0, 0x00);
 
-	if ((message == SMABORT) || (message == SMDEV_RESET) ||
-	    (message == SMABORT_TAG)) {
+	if ((message == ABORT_TASK_SET) || (message == TARGET_RESET) ||
+	    (message == ABORT_TASK)) {
 
 		while (!(RDW_HARPOON((port + hp_intstat)) & (BUS_FREE | PHASE))) {
 		}
@@ -4275,8 +4248,8 @@ static void FPT_phaseMsgOut(u32 port, unsigned char p_card)
 
 	else {
 
-		if (message == SMPARITY) {
-			currSCCB->Sccb_scsimsg = SMNO_OP;
+		if (message == MSG_PARITY_ERROR) {
+			currSCCB->Sccb_scsimsg = NOP;
 			WR_HARPOON(port + hp_autostart_1,
 				   (AUTO_IMMED + DISCONNECT_START));
 		} else {
@@ -4306,7 +4279,7 @@ static void FPT_phaseMsgIn(u32 port, unsigned char p_card)
 	}
 
 	message = RD_HARPOON(port + hp_scsidata_0);
-	if ((message == SMDISC) || (message == SMSAVE_DATA_PTR)) {
+	if ((message == DISCONNECT) || (message == SAVE_POINTERS)) {
 
 		WR_HARPOON(port + hp_autostart_1,
 			   (AUTO_IMMED + END_DATA_START));
@@ -4321,7 +4294,7 @@ static void FPT_phaseMsgIn(u32 port, unsigned char p_card)
 			FPT_sdecm(message, port, p_card);
 
 		} else {
-			if (currSCCB->Sccb_scsimsg != SMPARITY)
+			if (currSCCB->Sccb_scsimsg != MSG_PARITY_ERROR)
 				ACCEPT_MSG(port);
 			WR_HARPOON(port + hp_autostart_1,
 				   (AUTO_IMMED + DISCONNECT_START));
@@ -4351,7 +4324,7 @@ static void FPT_phaseIllegal(u32 port, unsigned char p_card)
 
 		currSCCB->HostStatus = SCCB_PHASE_SEQUENCE_FAIL;
 		currSCCB->Sccb_scsistat = ABORT_ST;
-		currSCCB->Sccb_scsimsg = SMABORT;
+		currSCCB->Sccb_scsimsg = ABORT_TASK_SET;
 	}
 
 	ACCEPT_MSG_ATN(port);
@@ -4650,9 +4623,9 @@ static void FPT_autoCmdCmplt(u32 p_port, unsigned char p_card)
 
 	FPT_sccbMgrTbl[p_card][currSCCB->TargID].TarLUN_CA = 0;
 
-	if (status_byte != SSGOOD) {
+	if (status_byte != SAM_STAT_GOOD) {
 
-		if (status_byte == SSQ_FULL) {
+		if (status_byte == SAM_STAT_TASK_SET_FULL) {
 
 			if (((FPT_BL_Card[p_card].globalFlags & F_CONLUN_IO) &&
 			     ((FPT_sccbMgrTbl[p_card][currSCCB->TargID].
@@ -4784,7 +4757,7 @@ static void FPT_autoCmdCmplt(u32 p_port, unsigned char p_card)
 
 		}
 
-		if (status_byte == SSCHECK) {
+		if (status_byte == SAM_STAT_CHECK_CONDITION) {
 			if (FPT_BL_Card[p_card].globalFlags & F_DO_RENEGO) {
 				if (FPT_sccbMgrTbl[p_card][currSCCB->TargID].
 				    TarEEValue & EE_SYNC_MASK) {
@@ -4806,7 +4779,7 @@ static void FPT_autoCmdCmplt(u32 p_port, unsigned char p_card)
 			currSCCB->SccbStatus = SCCB_ERROR;
 			currSCCB->TargetStatus = status_byte;
 
-			if (status_byte == SSCHECK) {
+			if (status_byte == SAM_STAT_CHECK_CONDITION) {
 
 				FPT_sccbMgrTbl[p_card][currSCCB->TargID].
 				    TarLUN_CA = 1;
@@ -6868,14 +6841,14 @@ static void FPT_queueCmdComplete(struct sccb_card *pCurrCard,
 		if ((p_sccb->
 		     ControlByte & (SCCB_DATA_XFER_OUT | SCCB_DATA_XFER_IN))
 		    && (p_sccb->HostStatus == SCCB_COMPLETE)
-		    && (p_sccb->TargetStatus != SSCHECK))
-
-			if ((SCSIcmd == SCSI_READ) ||
-			    (SCSIcmd == SCSI_WRITE) ||
-			    (SCSIcmd == SCSI_READ_EXTENDED) ||
-			    (SCSIcmd == SCSI_WRITE_EXTENDED) ||
-			    (SCSIcmd == SCSI_WRITE_AND_VERIFY) ||
-			    (SCSIcmd == SCSI_START_STOP_UNIT) ||
+		    && (p_sccb->TargetStatus != SAM_STAT_CHECK_CONDITION))
+
+			if ((SCSIcmd == READ_6) ||
+			    (SCSIcmd == WRITE_6) ||
+			    (SCSIcmd == READ_10) ||
+			    (SCSIcmd == WRITE_10) ||
+			    (SCSIcmd == WRITE_VERIFY) ||
+			    (SCSIcmd == START_STOP) ||
 			    (pCurrCard->globalFlags & F_NO_FILTER)
 			    )
 				p_sccb->HostStatus = SCCB_DATA_UNDER_RUN;
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index 2ddbcaa667d1..8aa964cd54df 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -538,11 +538,11 @@ static void complete_cmd(struct Scsi_Host *instance,
 
 	if (hostdata->sensing == cmd) {
 		/* Autosense processing ends here */
-		if (status_byte(cmd->result) != GOOD) {
+		if (get_status_byte(cmd) != SAM_STAT_GOOD) {
 			scsi_eh_restore_cmnd(cmd, &hostdata->ses);
 		} else {
 			scsi_eh_restore_cmnd(cmd, &hostdata->ses);
-			set_driver_byte(cmd, DRIVER_SENSE);
+			set_status_byte(cmd, SAM_STAT_CHECK_CONDITION);
 		}
 		hostdata->sensing = NULL;
 	}
@@ -1815,6 +1815,8 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
 
 				switch (tmp) {
 				case ABORT:
+					set_host_byte(cmd, DID_ABORT);
+					/* fallthrough */
 				case COMMAND_COMPLETE:
 					/* Accept message by clearing ACK */
 					sink = 1;
@@ -1826,9 +1828,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
 					hostdata->connected = NULL;
 					hostdata->busy[scmd_id(cmd)] &= ~(1 << cmd->device->lun);
 
-					cmd->result &= ~0xffff;
-					cmd->result |= cmd->SCp.Status;
-					cmd->result |= cmd->SCp.Message << 8;
+					set_status_byte(cmd, cmd->SCp.Status);
 
 					set_resid_from_SCp(cmd);
 
diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index 800052f10699..f3377e2ef5fb 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -5964,7 +5964,6 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp)
 				ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n");
 				ASC_DBG_PRT_SENSE(2, scp->sense_buffer,
 						  SCSI_SENSE_BUFFERSIZE);
-				set_driver_byte(scp, DRIVER_SENSE);
 			}
 			break;
 
@@ -6715,7 +6714,6 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep)
 				ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n");
 				ASC_DBG_PRT_SENSE(2, scp->sense_buffer,
 						  SCSI_SENSE_BUFFERSIZE);
-				set_driver_byte(scp, DRIVER_SENSE);
 			}
 			break;
 
@@ -6730,14 +6728,12 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep)
 	case QD_ABORTED_BY_HOST:
 		ASC_DBG(1, "QD_ABORTED_BY_HOST\n");
 		set_status_byte(scp, qdonep->d3.scsi_stat);
-		set_msg_byte(scp, qdonep->d3.scsi_msg);
 		set_host_byte(scp, DID_ABORT);
 		break;
 
 	default:
 		ASC_DBG(1, "done_stat 0x%x\n", qdonep->d3.done_stat);
 		set_status_byte(scp, qdonep->d3.scsi_stat);
-		set_msg_byte(scp, qdonep->d3.scsi_msg);
 		set_host_byte(scp, DID_ERROR);
 		break;
 	}
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index d8e19afa7a14..b13b5c85f3de 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -619,7 +619,8 @@ static struct {
 static irqreturn_t intr(int irq, void *dev_id);
 static void reset_ports(struct Scsi_Host *shpnt);
 static void aha152x_error(struct Scsi_Host *shpnt, char *msg);
-static void done(struct Scsi_Host *shpnt, int error);
+static void done(struct Scsi_Host *shpnt, unsigned char status_byte,
+		 unsigned char host_byte);
 
 /* diagnostics */
 static void show_command(struct scsi_cmnd * ptr);
@@ -1271,7 +1272,8 @@ static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev
  *  Internal done function
  *
  */
-static void done(struct Scsi_Host *shpnt, int error)
+static void done(struct Scsi_Host *shpnt, unsigned char status_byte,
+		 unsigned char host_byte)
 {
 	if (CURRENT_SC) {
 		if(DONE_SC)
@@ -1281,7 +1283,8 @@ static void done(struct Scsi_Host *shpnt, int error)
 
 		DONE_SC = CURRENT_SC;
 		CURRENT_SC = NULL;
-		DONE_SC->result = error;
+		set_status_byte(DONE_SC, status_byte);
+		set_host_byte(DONE_SC, host_byte);
 	} else
 		printk(KERN_ERR "aha152x: done() called outside of command\n");
 }
@@ -1376,13 +1379,13 @@ static void busfree_run(struct Scsi_Host *shpnt)
 
 		if(CURRENT_SC->SCp.phase & completed) {
 			/* target sent COMMAND COMPLETE */
-			done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16));
+			done(shpnt, CURRENT_SC->SCp.Status, DID_OK);
 
 		} else if(CURRENT_SC->SCp.phase & aborted) {
-			done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_ABORT << 16));
+			done(shpnt, CURRENT_SC->SCp.Status, DID_ABORT);
 
 		} else if(CURRENT_SC->SCp.phase & resetted) {
-			done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_RESET << 16));
+			done(shpnt, CURRENT_SC->SCp.Status, DID_RESET);
 
 		} else if(CURRENT_SC->SCp.phase & disconnected) {
 			/* target sent DISCONNECT */
@@ -1394,7 +1397,7 @@ static void busfree_run(struct Scsi_Host *shpnt)
 			CURRENT_SC = NULL;
 
 		} else {
-			done(shpnt, DID_ERROR << 16);
+			done(shpnt, SAM_STAT_GOOD, DID_ERROR);
 		}
 #if defined(AHA152X_STAT)
 	} else {
@@ -1515,7 +1518,7 @@ static void seldo_run(struct Scsi_Host *shpnt)
 	if (TESTLO(SSTAT0, SELDO)) {
 		scmd_printk(KERN_ERR, CURRENT_SC,
 			    "aha152x: passing bus free condition\n");
-		done(shpnt, DID_NO_CONNECT << 16);
+		done(shpnt, SAM_STAT_GOOD, DID_NO_CONNECT);
 		return;
 	}
 
@@ -1552,12 +1555,12 @@ static void selto_run(struct Scsi_Host *shpnt)
 	CURRENT_SC->SCp.phase &= ~selecting;
 
 	if (CURRENT_SC->SCp.phase & aborted)
-		done(shpnt, DID_ABORT << 16);
+		done(shpnt, SAM_STAT_GOOD, DID_ABORT);
 	else if (TESTLO(SSTAT0, SELINGO))
-		done(shpnt, DID_BUS_BUSY << 16);
+		done(shpnt, SAM_STAT_GOOD, DID_BUS_BUSY);
 	else
 		/* ARBITRATION won, but SELECTION failed */
-		done(shpnt, DID_NO_CONNECT << 16);
+		done(shpnt, SAM_STAT_GOOD, DID_NO_CONNECT);
 }
 
 /*
@@ -1891,7 +1894,7 @@ static void cmd_init(struct Scsi_Host *shpnt)
 	if (CURRENT_SC->SCp.sent_command) {
 		scmd_printk(KERN_ERR, CURRENT_SC,
 			    "command already sent\n");
-		done(shpnt, DID_ERROR << 16);
+		done(shpnt, SAM_STAT_GOOD, DID_ERROR);
 		return;
 	}
 
@@ -2231,7 +2234,7 @@ static int update_state(struct Scsi_Host *shpnt)
 static void parerr_run(struct Scsi_Host *shpnt)
 {
 	scmd_printk(KERN_ERR, CURRENT_SC, "parity error\n");
-	done(shpnt, DID_PARITY << 16);
+	done(shpnt, SAM_STAT_GOOD, DID_PARITY);
 }
 
 /*
@@ -2254,7 +2257,7 @@ static void rsti_run(struct Scsi_Host *shpnt)
 			kfree(ptr->host_scribble);
 			ptr->host_scribble=NULL;
 
-			ptr->result =  DID_RESET << 16;
+			set_host_byte(ptr, DID_RESET);
 			ptr->scsi_done(ptr);
 		}
 
@@ -2262,7 +2265,7 @@ static void rsti_run(struct Scsi_Host *shpnt)
 	}
 
 	if(CURRENT_SC && !CURRENT_SC->device->soft_reset)
-		done(shpnt, DID_RESET << 16 );
+		done(shpnt, SAM_STAT_GOOD, DID_RESET);
 }
 
 
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 4f7102f8eeb0..92ea24a075b8 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -1928,7 +1928,7 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd,
 			memcpy(cmd->sense_buffer,
 			       ahd_get_sense_buf(ahd, scb)
 			       + sense_offset, sense_size);
-			cmd->result |= (DRIVER_SENSE << 24);
+			set_status_byte(cmd, SAM_STAT_CHECK_CONDITION);
 
 #ifdef AHD_DEBUG
 			if (ahd_debug & AHD_SHOW_SENSE) {
@@ -2018,6 +2018,7 @@ ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd)
 	int new_status = DID_OK;
 	int do_fallback = 0;
 	int scsi_status;
+	struct scsi_sense_data *sense;
 
 	/*
 	 * Map CAM error codes into Linux Error codes.  We
@@ -2041,18 +2042,12 @@ ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd)
 		switch(scsi_status) {
 		case SAM_STAT_COMMAND_TERMINATED:
 		case SAM_STAT_CHECK_CONDITION:
-			if ((cmd->result >> 24) != DRIVER_SENSE) {
+			sense = (struct scsi_sense_data *)
+				cmd->sense_buffer;
+			if (sense->extra_len >= 5 &&
+			    (sense->add_sense_code == 0x47
+			     || sense->add_sense_code == 0x48))
 				do_fallback = 1;
-			} else {
-				struct scsi_sense_data *sense;
-				
-				sense = (struct scsi_sense_data *)
-					cmd->sense_buffer;
-				if (sense->extra_len >= 5 &&
-				    (sense->add_sense_code == 0x47
-				     || sense->add_sense_code == 0x48))
-					do_fallback = 1;
-			}
 			break;
 		default:
 			break;
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index d33f5a00bf0b..8b3d472aa3cc 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -1838,7 +1838,6 @@ ahc_linux_handle_scsi_status(struct ahc_softc *ahc,
 			if (sense_size < SCSI_SENSE_BUFFERSIZE)
 				memset(&cmd->sense_buffer[sense_size], 0,
 				       SCSI_SENSE_BUFFERSIZE - sense_size);
-			cmd->result |= (DRIVER_SENSE << 24);
 #ifdef AHC_DEBUG
 			if (ahc_debug & AHC_SHOW_SENSE) {
 				int i;
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 42e494a7106c..e5149c9fd4e6 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -1326,7 +1326,7 @@ static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
 
 	struct scsi_cmnd *pcmd = ccb->pcmd;
 	struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
-	pcmd->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
+	pcmd->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION;
 	if (sensebuffer) {
 		int sense_data_length =
 			sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE
@@ -1335,7 +1335,6 @@ static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
 		memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length);
 		sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
 		sensebuffer->Valid = 1;
-		pcmd->result |= (DRIVER_SENSE << 24);
 	}
 }
 
@@ -3254,7 +3253,7 @@ static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd,
 	if (!ccb)
 		return SCSI_MLQUEUE_HOST_BUSY;
 	if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) {
-		cmd->result = (DID_ERROR << 16) | (RESERVATION_CONFLICT << 1);
+		cmd->result = (DID_ERROR << 16) | SAM_STAT_RESERVATION_CONFLICT;
 		cmd->scsi_done(cmd);
 		return 0;
 	}
diff --git a/drivers/scsi/arm/acornscsi.c b/drivers/scsi/arm/acornscsi.c
index 248a5bfad153..84fc7a0c6ff4 100644
--- a/drivers/scsi/arm/acornscsi.c
+++ b/drivers/scsi/arm/acornscsi.c
@@ -794,7 +794,10 @@ static void acornscsi_done(AS_Host *host, struct scsi_cmnd **SCpntp,
 
 	acornscsi_dma_cleanup(host);
 
-	SCpnt->result = result << 16 | host->scsi.SCp.Message << 8 | host->scsi.SCp.Status;
+	set_host_byte(SCpnt, result);
+	if (result == DID_OK)
+		scsi_msg_to_host_byte(SCpnt, host->scsi.SCp.Message);
+	set_status_byte(SCpnt, host->scsi.SCp.Status);
 
 	/*
 	 * In theory, this should not happen.  In practice, it seems to.
@@ -833,12 +836,12 @@ static void acornscsi_done(AS_Host *host, struct scsi_cmnd **SCpntp,
 			xfer_warn = 0;
 
 		if (xfer_warn) {
-		    switch (status_byte(SCpnt->result)) {
-		    case CHECK_CONDITION:
-		    case COMMAND_TERMINATED:
-		    case BUSY:
-		    case QUEUE_FULL:
-		    case RESERVATION_CONFLICT:
+		    switch (get_status_byte(SCpnt)) {
+		    case SAM_STAT_CHECK_CONDITION:
+		    case SAM_STAT_COMMAND_TERMINATED:
+		    case SAM_STAT_BUSY:
+		    case SAM_STAT_TASK_SET_FULL:
+		    case SAM_STAT_RESERVATION_CONFLICT:
 			break;
 
 		    default:
@@ -2470,7 +2473,7 @@ static int acornscsi_queuecmd_lck(struct scsi_cmnd *SCpnt,
     if (acornscsi_cmdtype(SCpnt->cmnd[0]) == CMD_WRITE && (NO_WRITE & (1 << SCpnt->device->id))) {
 	printk(KERN_CRIT "scsi%d.%c: WRITE attempted with NO_WRITE flag set\n",
 	    host->host->host_no, '0' + SCpnt->device->id);
-	SCpnt->result = DID_NO_CONNECT << 16;
+	set_host_byte(SCpnt, DID_NO_CONNECT);
 	done(SCpnt);
 	return 0;
     }
@@ -2492,7 +2495,7 @@ static int acornscsi_queuecmd_lck(struct scsi_cmnd *SCpnt,
 	unsigned long flags;
 
 	if (!queue_add_cmd_ordered(&host->queues.issue, SCpnt)) {
-	    SCpnt->result = DID_ERROR << 16;
+		set_host_byte(SCpnt, DID_ERROR);
 	    done(SCpnt);
 	    return 0;
 	}
@@ -2506,31 +2509,6 @@ static int acornscsi_queuecmd_lck(struct scsi_cmnd *SCpnt,
 
 DEF_SCSI_QCMD(acornscsi_queuecmd)
 
-/*
- * Prototype: void acornscsi_reportstatus(struct scsi_cmnd **SCpntp1, struct scsi_cmnd **SCpntp2, int result)
- * Purpose  : pass a result to *SCpntp1, and check if *SCpntp1 = *SCpntp2
- * Params   : SCpntp1 - pointer to command to return
- *	      SCpntp2 - pointer to command to check
- *	      result  - result to pass back to mid-level done function
- * Returns  : *SCpntp2 = NULL if *SCpntp1 is the same command structure as *SCpntp2.
- */
-static inline void acornscsi_reportstatus(struct scsi_cmnd **SCpntp1,
-					  struct scsi_cmnd **SCpntp2,
-					  int result)
-{
-	struct scsi_cmnd *SCpnt = *SCpntp1;
-
-    if (SCpnt) {
-	*SCpntp1 = NULL;
-
-	SCpnt->result = result;
-	SCpnt->scsi_done(SCpnt);
-    }
-
-    if (SCpnt == *SCpntp2)
-	*SCpntp2 = NULL;
-}
-
 enum res_abort { res_not_running, res_success, res_success_clear, res_snooze };
 
 /*
diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c
index 9402cdce7cc5..30ed3d23635a 100644
--- a/drivers/scsi/arm/fas216.c
+++ b/drivers/scsi/arm/fas216.c
@@ -2042,8 +2042,10 @@ fas216_std_done(FAS216_Info *info, struct scsi_cmnd *SCpnt, unsigned int result)
 {
 	info->stats.fins += 1;
 
-	SCpnt->result = result << 16 | info->scsi.SCp.Message << 8 |
-			info->scsi.SCp.Status;
+	set_host_byte(SCpnt, result);
+	if (result == DID_OK)
+		scsi_msg_to_host_byte(SCpnt, info->scsi.SCp.Message);
+	set_status_byte(SCpnt, info->scsi.SCp.Status);
 
 	fas216_log_command(info, LOG_CONNECT, SCpnt,
 		"command complete, result=0x%08x", SCpnt->result);
@@ -2051,23 +2053,22 @@ fas216_std_done(FAS216_Info *info, struct scsi_cmnd *SCpnt, unsigned int result)
 	/*
 	 * If the driver detected an error, we're all done.
 	 */
-	if (host_byte(SCpnt->result) != DID_OK ||
-	    msg_byte(SCpnt->result) != COMMAND_COMPLETE)
+	if (get_host_byte(SCpnt) != DID_OK)
 		goto done;
 
 	/*
 	 * If the command returned CHECK_CONDITION or COMMAND_TERMINATED
 	 * status, request the sense information.
 	 */
-	if (status_byte(SCpnt->result) == CHECK_CONDITION ||
-	    status_byte(SCpnt->result) == COMMAND_TERMINATED)
+	if (get_status_byte(SCpnt) == SAM_STAT_CHECK_CONDITION ||
+	    get_status_byte(SCpnt) == SAM_STAT_COMMAND_TERMINATED)
 		goto request_sense;
 
 	/*
 	 * If the command did not complete with GOOD status,
 	 * we are all done here.
 	 */
-	if (status_byte(SCpnt->result) != GOOD)
+	if (get_status_byte(SCpnt) != SAM_STAT_GOOD)
 		goto done;
 
 	/*
diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index 9b89c26ccfdb..fc7197abfcdf 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -198,8 +198,9 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd, int cmd_len,
 	result = scsi_execute_req(ch->device, cmd, direction, buffer,
 				  buflength, &sshdr, timeout * HZ,
 				  MAX_RETRIES, NULL);
-
-	if (driver_byte(result) == DRIVER_SENSE) {
+	if (result < 0)
+		return result;
+	if (scsi_sense_valid(&sshdr)) {
 		if (debug)
 			scsi_print_sense_hdr(ch->device, ch->name, &sshdr);
 		errno = ch_find_errno(&sshdr);
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index 84d73f57292b..41bcfed08260 100644
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -406,10 +406,6 @@ static const char * const hostbyte_table[]={
 "DID_TRANSPORT_DISRUPTED", "DID_TRANSPORT_FAILFAST", "DID_TARGET_FAILURE",
 "DID_NEXUS_FAILURE", "DID_ALLOC_FAILURE", "DID_MEDIUM_ERROR" };
 
-static const char * const driverbyte_table[]={
-"DRIVER_OK", "DRIVER_BUSY", "DRIVER_SOFT",  "DRIVER_MEDIA", "DRIVER_ERROR",
-"DRIVER_INVALID", "DRIVER_TIMEOUT", "DRIVER_HARD", "DRIVER_SENSE"};
-
 const char *scsi_hostbyte_string(int result)
 {
 	const char *hb_string = NULL;
@@ -421,17 +417,6 @@ const char *scsi_hostbyte_string(int result)
 }
 EXPORT_SYMBOL(scsi_hostbyte_string);
 
-const char *scsi_driverbyte_string(int result)
-{
-	const char *db_string = NULL;
-	int db = driver_byte(result);
-
-	if (db < ARRAY_SIZE(driverbyte_table))
-		db_string = driverbyte_table[db];
-	return db_string;
-}
-EXPORT_SYMBOL(scsi_driverbyte_string);
-
 #define scsi_mlreturn_name(result)	{ result, #result }
 static const struct value_name_pair scsi_mlreturn_arr[] = {
 	scsi_mlreturn_name(NEEDS_RETRY),
diff --git a/drivers/scsi/cxlflash/superpipe.c b/drivers/scsi/cxlflash/superpipe.c
index ee11ec340654..df0ebabbf387 100644
--- a/drivers/scsi/cxlflash/superpipe.c
+++ b/drivers/scsi/cxlflash/superpipe.c
@@ -369,8 +369,7 @@ retry:
 		goto out;
 	}
 
-	if (driver_byte(result) == DRIVER_SENSE) {
-		result &= ~(0xFF<<24); /* DRIVER_SENSE is not an error */
+	if (result > 0 && scsi_sense_valid(&sshdr)) {
 		if (result & SAM_STAT_CHECK_CONDITION) {
 			switch (sshdr.sense_key) {
 			case NO_SENSE:
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index be87d5a7583d..24c7cefb0b78 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -160,22 +160,6 @@
 #define DC395x_write16(acb,address,value)	outw((value), acb->io_port_base + (address))
 #define DC395x_write32(acb,address,value)	outl((value), acb->io_port_base + (address))
 
-/* cmd->result */
-#define RES_TARGET		0x000000FF	/* Target State */
-#define RES_TARGET_LNX  STATUS_MASK	/* Only official ... */
-#define RES_ENDMSG		0x0000FF00	/* End Message */
-#define RES_DID			0x00FF0000	/* DID_ codes */
-#define RES_DRV			0xFF000000	/* DRIVER_ codes */
-
-#define MK_RES(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt))
-#define MK_RES_LNX(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt)<<1)
-
-#define SET_RES_TARGET(who,tgt) { who &= ~RES_TARGET; who |= (int)(tgt); }
-#define SET_RES_TARGET_LNX(who,tgt) { who &= ~RES_TARGET_LNX; who |= (int)(tgt) << 1; }
-#define SET_RES_MSG(who,msg) { who &= ~RES_ENDMSG; who |= (int)(msg) << 8; }
-#define SET_RES_DID(who,did) { who &= ~RES_DID; who |= (int)(did) << 16; }
-#define SET_RES_DRV(who,drv) { who &= ~RES_DRV; who |= (int)(drv) << 24; }
-
 #define TAG_NONE 255
 
 /*
@@ -986,7 +970,7 @@ static int dc395x_queue_command_lck(struct scsi_cmnd *cmd, void (*done)(struct s
 		cmd, cmd->device->id, (u8)cmd->device->lun, cmd->cmnd[0]);
 
 	/* Assume BAD_TARGET; will be cleared later */
-	cmd->result = DID_BAD_TARGET << 16;
+	set_host_byte(cmd, DID_BAD_TARGET);
 
 	/* ignore invalid targets */
 	if (cmd->device->id >= acb->scsi_host->max_id ||
@@ -1013,7 +997,8 @@ static int dc395x_queue_command_lck(struct scsi_cmnd *cmd, void (*done)(struct s
 
 	/* set callback and clear result in the command */
 	cmd->scsi_done = done;
-	cmd->result = 0;
+	set_host_byte(cmd, DID_OK);
+	set_status_byte(cmd, SAM_STAT_GOOD);
 
 	srb = list_first_entry_or_null(&acb->srb_free_list,
 			struct ScsiReqBlk, list);
@@ -1250,7 +1235,7 @@ static int dc395x_eh_abort(struct scsi_cmnd *cmd)
 		free_tag(dcb, srb);
 		list_add_tail(&srb->list, &acb->srb_free_list);
 		dprintkl(KERN_DEBUG, "eh_abort: Command was waiting\n");
-		cmd->result = DID_ABORT << 16;
+		set_host_byte(cmd, DID_ABORT);
 		return SUCCESS;
 	}
 	srb = find_cmd(cmd, &dcb->srb_going_list);
@@ -3178,6 +3163,8 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 		   srb, scsi_sg_count(cmd), srb->sg_index, srb->sg_count,
 		   scsi_sgtalbe(cmd));
 	status = srb->target_status;
+	set_host_byte(cmd, DID_OK);
+	set_status_byte(cmd, SAM_STAT_GOOD);
 	if (srb->flag & AUTO_REQSENSE) {
 		dprintkdbg(DBG_0, "srb_done: AUTO_REQSENSE1\n");
 		pci_unmap_srb_sense(acb, srb);
@@ -3186,7 +3173,7 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 		 */
 		srb->flag &= ~AUTO_REQSENSE;
 		srb->adapter_status = 0;
-		srb->target_status = CHECK_CONDITION << 1;
+		srb->target_status = SAM_STAT_CHECK_CONDITION;
 		if (debug_enabled(DBG_1)) {
 			switch (cmd->sense_buffer[2] & 0x0f) {
 			case NOT_READY:
@@ -3233,22 +3220,13 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 					*((unsigned int *)(cmd->sense_buffer + 3)));
 		}
 
-		if (status == (CHECK_CONDITION << 1)) {
-			cmd->result = DID_BAD_TARGET << 16;
+		if (status == SAM_STAT_CHECK_CONDITION) {
+			set_host_byte(cmd, DID_BAD_TARGET);
 			goto ckc_e;
 		}
 		dprintkdbg(DBG_0, "srb_done: AUTO_REQSENSE2\n");
 
-		if (srb->total_xfer_length
-		    && srb->total_xfer_length >= cmd->underflow)
-			cmd->result =
-			    MK_RES_LNX(DRIVER_SENSE, DID_OK,
-				       srb->end_message, CHECK_CONDITION);
-		/*SET_RES_DID(cmd->result,DID_OK) */
-		else
-			cmd->result =
-			    MK_RES_LNX(DRIVER_SENSE, DID_OK,
-				       srb->end_message, CHECK_CONDITION);
+		set_status_byte(cmd, SAM_STAT_CHECK_CONDITION);
 
 		goto ckc_e;
 	}
@@ -3258,10 +3236,10 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 		/*
 		 * target status..........................
 		 */
-		if (status >> 1 == CHECK_CONDITION) {
+		if (status == SAM_STAT_CHECK_CONDITION) {
 			request_sense(acb, dcb, srb);
 			return;
-		} else if (status >> 1 == QUEUE_FULL) {
+		} else if (status == SAM_STAT_TASK_SET_FULL) {
 			tempcnt = (u8)list_size(&dcb->srb_going_list);
 			dprintkl(KERN_INFO, "QUEUE_FULL for dev <%02i-%i> with %i cmnds\n",
 			     dcb->target_id, dcb->target_lun, tempcnt);
@@ -3277,13 +3255,11 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 		} else if (status == SCSI_STAT_SEL_TIMEOUT) {
 			srb->adapter_status = H_SEL_TIMEOUT;
 			srb->target_status = 0;
-			cmd->result = DID_NO_CONNECT << 16;
+			set_host_byte(cmd, DID_NO_CONNECT);
 		} else {
 			srb->adapter_status = 0;
-			SET_RES_DID(cmd->result, DID_ERROR);
-			SET_RES_MSG(cmd->result, srb->end_message);
-			SET_RES_TARGET(cmd->result, status);
-
+			set_host_byte(cmd, DID_ERROR);
+			set_status_byte(cmd, status);
 		}
 	} else {
 		/*
@@ -3292,16 +3268,13 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 		status = srb->adapter_status;
 		if (status & H_OVER_UNDER_RUN) {
 			srb->target_status = 0;
-			SET_RES_DID(cmd->result, DID_OK);
-			SET_RES_MSG(cmd->result, srb->end_message);
+			scsi_msg_to_host_byte(cmd, srb->end_message);
 		} else if (srb->status & PARITY_ERROR) {
-			SET_RES_DID(cmd->result, DID_PARITY);
-			SET_RES_MSG(cmd->result, srb->end_message);
+			set_host_byte(cmd, DID_PARITY);
 		} else {	/* No error */
 
 			srb->adapter_status = 0;
 			srb->target_status = 0;
-			SET_RES_DID(cmd->result, DID_OK);
 		}
 	}
 
@@ -3322,15 +3295,15 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 		base = scsi_kmap_atomic_sg(sg, scsi_sg_count(cmd), &offset, &len);
 		ptr = (struct ScsiInqData *)(base + offset);
 
-		if (!ckc_only && (cmd->result & RES_DID) == 0
+		if (!ckc_only && get_host_byte(cmd) == DID_OK
 		    && cmd->cmnd[2] == 0 && scsi_bufflen(cmd) >= 8
 		    && dir != DMA_NONE && ptr && (ptr->Vers & 0x07) >= 2)
 			dcb->inquiry7 = ptr->Flags;
 
 	/*if( srb->cmd->cmnd[0] == INQUIRY && */
 	/*  (host_byte(cmd->result) == DID_OK || status_byte(cmd->result) & CHECK_CONDITION) ) */
-		if ((cmd->result == (DID_OK << 16) ||
-		     status_byte(cmd->result) == CHECK_CONDITION)) {
+		if ((get_host_byte(cmd) == DID_OK) ||
+		    (get_status_byte(cmd) == SAM_STAT_CHECK_CONDITION)) {
 			if (!dcb->init_tcq_flag) {
 				add_dev(acb, dcb, ptr);
 				dcb->init_tcq_flag = 1;
@@ -3357,7 +3330,7 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 	if (srb != acb->tmp_srb) {
 		/* Add to free list */
 		dprintkdbg(DBG_0, "srb_done: (0x%p) done result=0x%08x\n",
-			cmd, cmd->result);
+			   cmd, cmd->result);
 		list_move_tail(&srb->list, &acb->srb_free_list);
 	} else {
 		dprintkl(KERN_ERR, "srb_done: ERROR! Completed cmd with tmp_srb\n");
@@ -3381,16 +3354,14 @@ static void doing_srb_done(struct AdapterCtlBlk *acb, u8 did_flag,
 		struct scsi_cmnd *p;
 
 		list_for_each_entry_safe(srb, tmp, &dcb->srb_going_list, list) {
-			int result;
-
 			p = srb->cmd;
-			result = MK_RES(0, did_flag, 0, 0);
 			printk("G:%p(%02i-%i) ", p,
 			       p->device->id, (u8)p->device->lun);
 			list_del(&srb->list);
 			free_tag(dcb, srb);
 			list_add_tail(&srb->list, &acb->srb_free_list);
-			p->result = result;
+			set_host_byte(p, did_flag);
+			set_status_byte(p, SAM_STAT_GOOD);
 			pci_unmap_srb_sense(acb, srb);
 			pci_unmap_srb(acb, srb);
 			if (force) {
@@ -3411,14 +3382,13 @@ static void doing_srb_done(struct AdapterCtlBlk *acb, u8 did_flag,
 
 		/* Waiting queue */
 		list_for_each_entry_safe(srb, tmp, &dcb->srb_waiting_list, list) {
-			int result;
 			p = srb->cmd;
 
-			result = MK_RES(0, did_flag, 0, 0);
 			printk("W:%p<%02i-%i>", p, p->device->id,
 			       (u8)p->device->lun);
 			list_move_tail(&srb->list, &acb->srb_free_list);
-			p->result = result;
+			set_host_byte(p, did_flag);
+			set_status_byte(p, SAM_STAT_GOOD);
 			pci_unmap_srb_sense(acb, srb);
 			pci_unmap_srb(acb, srb);
 			if (force) {
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 03b7f255644f..7baee18ebd03 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -563,12 +563,12 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
 			kfree(buff);
 			return SCSI_DH_OK;
 		}
-		if (!scsi_sense_valid(&sense_hdr)) {
+		if (retval < 0 || !scsi_sense_valid(&sense_hdr)) {
 			sdev_printk(KERN_INFO, sdev,
 				    "%s: rtpg failed, result %d\n",
 				    ALUA_DH_NAME, retval);
 			kfree(buff);
-			if (driver_byte(retval) == DRIVER_ERROR)
+			if (retval < 0)
 				return SCSI_DH_DEV_TEMP_BUSY;
 			if (host_byte(retval) == DID_NO_CONNECT)
 				return SCSI_DH_RES_TEMP_UNAVAIL;
@@ -794,11 +794,11 @@ static unsigned alua_stpg(struct scsi_device *sdev, struct alua_port_group *pg)
 	retval = submit_stpg(sdev, pg->group_id, &sense_hdr);
 
 	if (retval) {
-		if (!scsi_sense_valid(&sense_hdr)) {
+		if (retval < 0 || !scsi_sense_valid(&sense_hdr)) {
 			sdev_printk(KERN_INFO, sdev,
 				    "%s: stpg failed, result %d",
 				    ALUA_DH_NAME, retval);
-			if (driver_byte(retval) == DRIVER_ERROR)
+			if (retval < 0)
 				return SCSI_DH_DEV_TEMP_BUSY;
 		} else {
 			sdev_printk(KERN_INFO, sdev, "%s: stpg failed\n",
diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c
index 45ec9f16c085..647f82898b6e 100644
--- a/drivers/scsi/esas2r/esas2r_main.c
+++ b/drivers/scsi/esas2r/esas2r_main.c
@@ -1525,7 +1525,7 @@ void esas2r_complete_request_cb(struct esas2r_adapter *a,
 
 		rq->cmd->result =
 			((esas2r_req_status_to_error(rq->req_stat) << 16)
-			 | (rq->func_rsp.scsi_rsp.scsi_stat & STATUS_MASK));
+			 | rq->func_rsp.scsi_rsp.scsi_stat);
 
 		if (rq->req_stat == RS_UNDERRUN)
 			scsi_set_resid(rq->cmd,
diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c
index 342535ac0570..9a8c037a2f21 100644
--- a/drivers/scsi/esp_scsi.c
+++ b/drivers/scsi/esp_scsi.c
@@ -922,9 +922,7 @@ static void esp_cmd_is_done(struct esp *esp, struct esp_cmd_entry *ent,
 		 * saw originally.  Also, report that we are providing
 		 * the sense data.
 		 */
-		cmd->result = ((DRIVER_SENSE << 24) |
-			       (DID_OK << 16) |
-			       (SAM_STAT_CHECK_CONDITION << 0));
+		cmd->result = SAM_STAT_CHECK_CONDITION;
 
 		ent->flags &= ~ESP_CMD_FLAG_AUTOSENSE;
 		if (esp_debug & ESP_DEBUG_AUTOSENSE) {
diff --git a/drivers/scsi/fdomain.c b/drivers/scsi/fdomain.c
index 772bdc93930a..eda2be534aa7 100644
--- a/drivers/scsi/fdomain.c
+++ b/drivers/scsi/fdomain.c
@@ -202,11 +202,10 @@ static int fdomain_select(struct Scsi_Host *sh, int target)
 	return 1;
 }
 
-static void fdomain_finish_cmd(struct fdomain *fd, int result)
+static void fdomain_finish_cmd(struct fdomain *fd)
 {
 	outb(0, fd->base + REG_ICTL);
 	fdomain_make_bus_idle(fd);
-	fd->cur_cmd->result = result;
 	fd->cur_cmd->scsi_done(fd->cur_cmd);
 	fd->cur_cmd = NULL;
 }
@@ -273,7 +272,8 @@ static void fdomain_work(struct work_struct *work)
 	if (cmd->SCp.phase & in_arbitration) {
 		status = inb(fd->base + REG_ASTAT);
 		if (!(status & ASTAT_ARB)) {
-			fdomain_finish_cmd(fd, DID_BUS_BUSY << 16);
+			set_host_byte(cmd, DID_BUS_BUSY);
+			fdomain_finish_cmd(fd);
 			goto out;
 		}
 		cmd->SCp.phase = in_selection;
@@ -290,7 +290,8 @@ static void fdomain_work(struct work_struct *work)
 		if (!(status & BSTAT_BSY)) {
 			/* Try again, for slow devices */
 			if (fdomain_select(cmd->device->host, scmd_id(cmd))) {
-				fdomain_finish_cmd(fd, DID_NO_CONNECT << 16);
+				set_host_byte(cmd, DID_NO_CONNECT);
+				fdomain_finish_cmd(fd);
 				goto out;
 			}
 			/* Stop arbitration and enable parity */
@@ -333,7 +334,7 @@ static void fdomain_work(struct work_struct *work)
 			break;
 		case BSTAT_MSG | BSTAT_CMD | BSTAT_IO:	/* MESSAGE IN */
 			cmd->SCp.Message = inb(fd->base + REG_SCSI_DATA);
-			if (!cmd->SCp.Message)
+			if (cmd->SCp.Message == COMMAND_COMPLETE)
 				++done;
 			break;
 		}
@@ -359,9 +360,10 @@ static void fdomain_work(struct work_struct *work)
 		fdomain_read_data(cmd);
 
 	if (done) {
-		fdomain_finish_cmd(fd, (cmd->SCp.Status & 0xff) |
-				   ((cmd->SCp.Message & 0xff) << 8) |
-				   (DID_OK << 16));
+		set_status_byte(cmd, cmd->SCp.Status);
+		set_host_byte(cmd, DID_OK);
+		scsi_msg_to_host_byte(cmd, cmd->SCp.Message);
+		fdomain_finish_cmd(fd);
 	} else {
 		if (cmd->SCp.phase & disconnect) {
 			outb(ICTL_FIFO | ICTL_SEL | ICTL_REQ | FIFO_COUNT,
@@ -439,10 +441,10 @@ static int fdomain_abort(struct scsi_cmnd *cmd)
 
 	fdomain_make_bus_idle(fd);
 	fd->cur_cmd->SCp.phase |= aborted;
-	fd->cur_cmd->result = DID_ABORT << 16;
 
 	/* Aborts are not done well. . . */
-	fdomain_finish_cmd(fd, DID_ABORT << 16);
+	set_host_byte(fd->cur_cmd, DID_ABORT);
+	fdomain_finish_cmd(fd);
 	spin_unlock_irqrestore(sh->host_lock, flags);
 	return SUCCESS;
 }
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index db4c7a7ff4dd..61cda7b7624f 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -760,7 +760,7 @@ static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
 		goto skip_resid;
 
 	default:
-		scp->result = DRIVER_INVALID << 24 | DID_ABORT << 16;
+		scp->result = DID_ABORT << 16;
 		break;
 	}
 
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index e75b0068ad84..e6a3eaaa57d9 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -1005,7 +1005,7 @@ static void handle_cmd_rsp(struct srp_event_struct *evt_struct)
 	
 	if (cmnd) {
 		cmnd->result |= rsp->status;
-		if (((cmnd->result >> 1) & 0x1f) == CHECK_CONDITION)
+		if (scsi_status_is_check_condition(cmnd->result))
 			memcpy(cmnd->sense_buffer,
 			       rsp->data,
 			       be32_to_cpu(rsp->sense_data_len));
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 15630f5f2553..4683c183e9d4 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -829,10 +829,7 @@ static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 
 		ascq = session->tt->check_protection(task, &sector);
 		if (ascq) {
-			sc->result = DRIVER_SENSE << 24 |
-				     SAM_STAT_CHECK_CONDITION;
-			scsi_build_sense_buffer(1, sc->sense_buffer,
-						ILLEGAL_REQUEST, 0x10, ascq);
+			scsi_build_sense(sc, 1, ILLEGAL_REQUEST, 0x10, ascq);
 			scsi_set_sense_information(sc->sense_buffer,
 						   SCSI_SENSE_BUFFERSIZE,
 						   sector);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index b8bb012abb33..503919b10a6d 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -2896,10 +2896,8 @@ skipit:
 	}
 out:
 	if (err_type == BGS_GUARD_ERR_MASK) {
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-					0x10, 0x1);
-		cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 |
-			      SAM_STAT_CHECK_CONDITION;
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
+		set_host_byte(cmd, DID_ABORT);
 		phba->bg_guard_err_cnt++;
 		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
 				"9069 BLKGRD: reftag %x grd_tag err %x != %x\n",
@@ -2907,10 +2905,8 @@ out:
 				sum, guard_tag);
 
 	} else if (err_type == BGS_REFTAG_ERR_MASK) {
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-					0x10, 0x3);
-		cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 |
-			      SAM_STAT_CHECK_CONDITION;
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
+		set_host_byte(cmd, DID_ABORT);
 
 		phba->bg_reftag_err_cnt++;
 		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
@@ -2919,10 +2915,8 @@ out:
 				ref_tag, start_ref_tag);
 
 	} else if (err_type == BGS_APPTAG_ERR_MASK) {
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-					0x10, 0x2);
-		cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 |
-			      SAM_STAT_CHECK_CONDITION;
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
+		set_host_byte(cmd, DID_ABORT);
 
 		phba->bg_apptag_err_cnt++;
 		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
@@ -2981,10 +2975,8 @@ lpfc_sli4_parse_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd,
 	if (lpfc_bgs_get_guard_err(bgstat)) {
 		ret = 1;
 
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-					0x10, 0x1);
-		cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 |
-			      SAM_STAT_CHECK_CONDITION;
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
+		set_host_byte(cmd, DID_ABORT);
 		phba->bg_guard_err_cnt++;
 		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
 				"9059 BLKGRD: Guard Tag error in cmd"
@@ -2997,10 +2989,8 @@ lpfc_sli4_parse_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd,
 	if (lpfc_bgs_get_reftag_err(bgstat)) {
 		ret = 1;
 
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-					0x10, 0x3);
-		cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 |
-			      SAM_STAT_CHECK_CONDITION;
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
+		set_host_byte(cmd, DID_ABORT);
 
 		phba->bg_reftag_err_cnt++;
 		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
@@ -3014,10 +3004,8 @@ lpfc_sli4_parse_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd,
 	if (lpfc_bgs_get_apptag_err(bgstat)) {
 		ret = 1;
 
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-					0x10, 0x2);
-		cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 |
-			      SAM_STAT_CHECK_CONDITION;
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
+		set_host_byte(cmd, DID_ABORT);
 
 		phba->bg_apptag_err_cnt++;
 		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
@@ -3127,10 +3115,8 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd,
 	if (lpfc_bgs_get_guard_err(bgstat)) {
 		ret = 1;
 
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-				0x10, 0x1);
-		cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 |
-			      SAM_STAT_CHECK_CONDITION;
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
+		set_host_byte(cmd, DID_ABORT);
 		phba->bg_guard_err_cnt++;
 		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
 				"9055 BLKGRD: Guard Tag error in cmd "
@@ -3143,10 +3129,8 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd,
 	if (lpfc_bgs_get_reftag_err(bgstat)) {
 		ret = 1;
 
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-				0x10, 0x3);
-		cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 |
-			      SAM_STAT_CHECK_CONDITION;
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
+		set_host_byte(cmd, DID_ABORT);
 
 		phba->bg_reftag_err_cnt++;
 		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
@@ -3160,10 +3144,8 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd,
 	if (lpfc_bgs_get_apptag_err(bgstat)) {
 		ret = 1;
 
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-				0x10, 0x2);
-		cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 |
-			      SAM_STAT_CHECK_CONDITION;
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
+		set_host_byte(cmd, DID_ABORT);
 
 		phba->bg_apptag_err_cnt++;
 		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 80f546976c7e..56910e94dbf2 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -1583,9 +1583,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
 				memcpy(cmd->sense_buffer, pthru->reqsensearea,
 						14);
 
-				cmd->result = (DRIVER_SENSE << 24) |
-					(DID_OK << 16) |
-					(CHECK_CONDITION << 1);
+				cmd->result = SAM_STAT_CHECK_CONDITION;
 			}
 			else {
 				if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) {
@@ -1593,14 +1591,10 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
 					memcpy(cmd->sense_buffer,
 						epthru->reqsensearea, 14);
 
-					cmd->result = (DRIVER_SENSE << 24) |
-						(DID_OK << 16) |
-						(CHECK_CONDITION << 1);
-				} else {
-					cmd->sense_buffer[0] = 0x70;
-					cmd->sense_buffer[2] = ABORTED_COMMAND;
-					cmd->result |= (CHECK_CONDITION << 1);
-				}
+					cmd->result = SAM_STAT_CHECK_CONDITION;
+				} else
+					scsi_build_sense(cmd, 0,
+							 ABORTED_COMMAND, 0, 0);
 			}
 			break;
 
@@ -1617,7 +1611,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
 			 */
 			if( cmd->cmnd[0] == TEST_UNIT_READY ) {
 				cmd->result |= (DID_ERROR << 16) |
-					(RESERVATION_CONFLICT << 1);
+					SAM_STAT_RESERVATION_CONFLICT;
 			}
 			else
 			/*
@@ -1629,7 +1623,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
 					 cmd->cmnd[0] == RELEASE) ) {
 
 				cmd->result |= (DID_ERROR << 16) |
-					(RESERVATION_CONFLICT << 1);
+					SAM_STAT_RESERVATION_CONFLICT;
 			}
 			else
 #endif
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index d0aa384adb76..d3fac99db786 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -1574,10 +1574,8 @@ megaraid_mbox_build_cmd(adapter_t *adapter, struct scsi_cmnd *scp, int *busy)
 			}
 
 			if (scp->cmnd[1] & MEGA_SCSI_INQ_EVPD) {
-				scp->sense_buffer[0] = 0x70;
-				scp->sense_buffer[2] = ILLEGAL_REQUEST;
-				scp->sense_buffer[12] = MEGA_INVALID_FIELD_IN_CDB;
-				scp->result = CHECK_CONDITION << 1;
+				scsi_build_sense(scp, 0, ILLEGAL_REQUEST,
+						 MEGA_INVALID_FIELD_IN_CDB, 0);
 				return NULL;
 			}
 
@@ -2301,8 +2299,7 @@ megaraid_mbox_dpc(unsigned long devp)
 				memcpy(scp->sense_buffer, pthru->reqsensearea,
 						14);
 
-				scp->result = DRIVER_SENSE << 24 |
-					DID_OK << 16 | CHECK_CONDITION << 1;
+				scp->result = SAM_STAT_CHECK_CONDITION;
 			}
 			else {
 				if (mbox->cmd == MBOXCMD_EXTPTHRU) {
@@ -2310,14 +2307,10 @@ megaraid_mbox_dpc(unsigned long devp)
 					memcpy(scp->sense_buffer,
 						epthru->reqsensearea, 14);
 
-					scp->result = DRIVER_SENSE << 24 |
-						DID_OK << 16 |
-						CHECK_CONDITION << 1;
-				} else {
-					scp->sense_buffer[0] = 0x70;
-					scp->sense_buffer[2] = ABORTED_COMMAND;
-					scp->result = CHECK_CONDITION << 1;
-				}
+					scp->result = SAM_STAT_CHECK_CONDITION;
+				} else
+					scsi_build_sense(scp, 0,
+							 ABORTED_COMMAND, 0, 0);
 			}
 			break;
 
@@ -2334,7 +2327,7 @@ megaraid_mbox_dpc(unsigned long devp)
 			 */
 			if (scp->cmnd[0] == TEST_UNIT_READY) {
 				scp->result = DID_ERROR << 16 |
-					RESERVATION_CONFLICT << 1;
+					SAM_STAT_RESERVATION_CONFLICT;
 			}
 			else
 			/*
@@ -2345,7 +2338,7 @@ megaraid_mbox_dpc(unsigned long devp)
 					 scp->cmnd[0] == RELEASE)) {
 
 				scp->result = DID_ERROR << 16 |
-					RESERVATION_CONFLICT << 1;
+					SAM_STAT_RESERVATION_CONFLICT;
 			}
 			else {
 				scp->result = DID_BAD_TARGET << 16 | status;
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 9cb167069ec8..ec10b2497310 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -3667,8 +3667,6 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
 				       SCSI_SENSE_BUFFERSIZE);
 				memcpy(cmd->scmd->sense_buffer, cmd->sense,
 				       hdr->sense_len);
-
-				cmd->scmd->result |= DRIVER_SENSE << 24;
 			}
 
 			break;
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 142e60741094..06399c026a8d 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -2051,7 +2051,6 @@ map_cmd_status(struct fusion_context *fusion,
 			       SCSI_SENSE_BUFFERSIZE);
 			memcpy(scmd->sense_buffer, sense,
 			       SCSI_SENSE_BUFFERSIZE);
-			scmd->result |= DRIVER_SENSE << 24;
 		}
 
 		/*
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c
index 0a9f4e44ab2c..78b72bcf58fe 100644
--- a/drivers/scsi/mesh.c
+++ b/drivers/scsi/mesh.c
@@ -595,9 +595,10 @@ static void mesh_done(struct mesh_state *ms, int start_next)
 	ms->current_req = NULL;
 	tp->current_req = NULL;
 	if (cmd) {
-		cmd->result = (ms->stat << 16) | cmd->SCp.Status;
+		set_host_byte(cmd, ms->stat);
+		set_status_byte(cmd, cmd->SCp.Status);
 		if (ms->stat == DID_OK)
-			cmd->result |= cmd->SCp.Message << 8;
+			scsi_msg_to_host_byte(cmd, cmd->SCp.Message);
 		if (DEBUG_TARGET(cmd)) {
 			printk(KERN_DEBUG "mesh_done: result = %x, data_ptr=%d, buflen=%d\n",
 			       cmd->result, ms->data_ptr, scsi_bufflen(cmd));
@@ -993,7 +994,7 @@ static void handle_reset(struct mesh_state *ms)
 	for (tgt = 0; tgt < 8; ++tgt) {
 		tp = &ms->tgts[tgt];
 		if ((cmd = tp->current_req) != NULL) {
-			cmd->result = DID_RESET << 16;
+			set_host_byte(cmd, DID_RESET);
 			tp->current_req = NULL;
 			mesh_completed(ms, cmd);
 		}
@@ -1003,7 +1004,7 @@ static void handle_reset(struct mesh_state *ms)
 	ms->current_req = NULL;
 	while ((cmd = ms->request_q) != NULL) {
 		ms->request_q = (struct scsi_cmnd *) cmd->host_scribble;
-		cmd->result = DID_RESET << 16;
+		set_host_byte(cmd, DID_RESET);
 		mesh_completed(ms, cmd);
 	}
 	ms->phase = idle;
diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index 836a27c282dc..a54aa009ec5a 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -2127,8 +2127,7 @@ static void mpi3mr_map_eedp_error(struct scsi_cmnd *scmd,
 
 	mpi3mr_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
 	    0x10, ascq);
-	scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
-	    SAM_STAT_CHECK_CONDITION;
+	scmd->result = (DID_ABORT << 16) | SAM_STAT_CHECK_CONDITION;
 }
 
 /**
@@ -3354,8 +3353,7 @@ static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc,
 		    "%s: cdb received with invalid param_len: %d\n",
 		    __func__, param_len);
 		scsi_print_command(scmd);
-		scmd->result = (DRIVER_SENSE << 24) |
-		    SAM_STAT_CHECK_CONDITION;
+		scmd->result = SAM_STAT_CHECK_CONDITION;
 		scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
 		    0x1A, 0);
 		scmd->scsi_done(scmd);
@@ -3366,8 +3364,7 @@ static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc,
 		    "%s: cdb received with param_len: %d bufflen: %d\n",
 		    __func__, param_len, scsi_bufflen(scmd));
 		scsi_print_command(scmd);
-		scmd->result = (DRIVER_SENSE << 24) |
-		    SAM_STAT_CHECK_CONDITION;
+		scmd->result = SAM_STAT_CHECK_CONDITION;
 		scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
 		    0x1A, 0);
 		scmd->scsi_done(scmd);
@@ -3376,8 +3373,7 @@ static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc,
 	buf = kzalloc(scsi_bufflen(scmd), GFP_ATOMIC);
 	if (!buf) {
 		scsi_print_command(scmd);
-		scmd->result = (DRIVER_SENSE << 24) |
-		    SAM_STAT_CHECK_CONDITION;
+		scmd->result = SAM_STAT_CHECK_CONDITION;
 		scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
 		    0x55, 0x03);
 		scmd->scsi_done(scmd);
@@ -3391,8 +3387,7 @@ static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc,
 		    "%s: Invalid descriptor length in param list: %d\n",
 		    __func__, desc_len);
 		scsi_print_command(scmd);
-		scmd->result = (DRIVER_SENSE << 24) |
-		    SAM_STAT_CHECK_CONDITION;
+		scmd->result = SAM_STAT_CHECK_CONDITION;
 		scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
 		    0x26, 0);
 		scmd->scsi_done(scmd);
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 8e7f9e744f5d..dc2aaaf645d3 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -5119,10 +5119,8 @@ _scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
 		ascq = 0x00;
 		break;
 	}
-	scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10,
-	    ascq);
-	scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
-	    SAM_STAT_CHECK_CONDITION;
+	scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x10, ascq);
+	set_host_byte(scmd, DID_ABORT);
 }
 
 /**
@@ -5879,12 +5877,8 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
 		else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
 			mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
 			mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
-			scmd->result = (DRIVER_SENSE << 24) |
-			    SAM_STAT_CHECK_CONDITION;
-			scmd->sense_buffer[0] = 0x70;
-			scmd->sense_buffer[2] = ILLEGAL_REQUEST;
-			scmd->sense_buffer[12] = 0x20;
-			scmd->sense_buffer[13] = 0;
+			scsi_build_sense(scmd, 0, ILLEGAL_REQUEST,
+					 0x20, 0);
 		}
 		break;
 
diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c
index 9d5743627604..6bb03d7a254d 100644
--- a/drivers/scsi/mvumi.c
+++ b/drivers/scsi/mvumi.c
@@ -1317,11 +1317,10 @@ static void mvumi_complete_cmd(struct mvumi_hba *mhba, struct mvumi_cmd *cmd,
 		if (ob_frame->rsp_flag & CL_RSP_FLAG_SENSEDATA) {
 			memcpy(cmd->scmd->sense_buffer, ob_frame->payload,
 				sizeof(struct mvumi_sense_data));
-			scmd->result |=  (DRIVER_SENSE << 24);
 		}
 		break;
 	default:
-		scmd->result |= (DRIVER_INVALID << 24) | (DID_ABORT << 16);
+		scmd->result |= (DID_ABORT << 16);
 		break;
 	}
 
@@ -2068,10 +2067,7 @@ static unsigned char mvumi_build_frame(struct mvumi_hba *mhba,
 	return 0;
 
 error:
-	scmd->result = (DID_OK << 16) | (DRIVER_SENSE << 24) |
-		SAM_STAT_CHECK_CONDITION;
-	scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x24,
-									0);
+	scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x24, 0);
 	return -1;
 }
 
@@ -2131,7 +2127,7 @@ static enum blk_eh_timer_return mvumi_timed_out(struct scsi_cmnd *scmd)
 	else
 		atomic_dec(&mhba->fw_outstanding);
 
-	scmd->result = (DRIVER_INVALID << 24) | (DID_ABORT << 16);
+	scmd->result = (DID_ABORT << 16);
 	scmd->SCp.ptr = NULL;
 	if (scsi_bufflen(scmd)) {
 		dma_unmap_sg(&mhba->pdev->dev, scsi_sglist(scmd),
diff --git a/drivers/scsi/myrb.c b/drivers/scsi/myrb.c
index d9c82e211ae7..542ed88ef90d 100644
--- a/drivers/scsi/myrb.c
+++ b/drivers/scsi/myrb.c
@@ -1397,8 +1397,7 @@ myrb_mode_sense(struct myrb_hba *cb, struct scsi_cmnd *scmd,
 static void myrb_request_sense(struct myrb_hba *cb,
 		struct scsi_cmnd *scmd)
 {
-	scsi_build_sense_buffer(0, scmd->sense_buffer,
-				NO_SENSE, 0, 0);
+	scsi_build_sense(scmd, 0, NO_SENSE, 0, 0);
 	scsi_sg_copy_from_buffer(scmd, scmd->sense_buffer,
 				 SCSI_SENSE_BUFFERSIZE);
 }
@@ -1447,10 +1446,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 	case INQUIRY:
 		if (scmd->cmnd[1] & 1) {
 			/* Illegal request, invalid field in CDB */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						ILLEGAL_REQUEST, 0x24, 0);
-			scmd->result = (DRIVER_SENSE << 24) |
-				SAM_STAT_CHECK_CONDITION;
+			scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x24, 0);
 		} else {
 			myrb_inquiry(cb, scmd);
 			scmd->result = (DID_OK << 16);
@@ -1465,10 +1461,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 		if ((scmd->cmnd[2] & 0x3F) != 0x3F &&
 		    (scmd->cmnd[2] & 0x3F) != 0x08) {
 			/* Illegal request, invalid field in CDB */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						ILLEGAL_REQUEST, 0x24, 0);
-			scmd->result = (DRIVER_SENSE << 24) |
-				SAM_STAT_CHECK_CONDITION;
+			scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x24, 0);
 		} else {
 			myrb_mode_sense(cb, scmd, ldev_info);
 			scmd->result = (DID_OK << 16);
@@ -1479,20 +1472,14 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 		if ((scmd->cmnd[1] & 1) ||
 		    (scmd->cmnd[8] & 1)) {
 			/* Illegal request, invalid field in CDB */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						ILLEGAL_REQUEST, 0x24, 0);
-			scmd->result = (DRIVER_SENSE << 24) |
-				SAM_STAT_CHECK_CONDITION;
+			scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x24, 0);
 			scmd->scsi_done(scmd);
 			return 0;
 		}
 		lba = get_unaligned_be32(&scmd->cmnd[2]);
 		if (lba) {
 			/* Illegal request, invalid field in CDB */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						ILLEGAL_REQUEST, 0x24, 0);
-			scmd->result = (DRIVER_SENSE << 24) |
-				SAM_STAT_CHECK_CONDITION;
+			scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x24, 0);
 			scmd->scsi_done(scmd);
 			return 0;
 		}
@@ -1506,10 +1493,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 	case SEND_DIAGNOSTIC:
 		if (scmd->cmnd[1] != 0x04) {
 			/* Illegal request, invalid field in CDB */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						ILLEGAL_REQUEST, 0x24, 0);
-			scmd->result = (DRIVER_SENSE << 24) |
-				SAM_STAT_CHECK_CONDITION;
+			scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x24, 0);
 		} else {
 			/* Assume good status */
 			scmd->result = (DID_OK << 16);
@@ -1519,10 +1503,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 	case READ_6:
 		if (ldev_info->state == MYRB_DEVICE_WO) {
 			/* Data protect, attempt to read invalid data */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						DATA_PROTECT, 0x21, 0x06);
-			scmd->result = (DRIVER_SENSE << 24) |
-				SAM_STAT_CHECK_CONDITION;
+			scsi_build_sense(scmd, 0, DATA_PROTECT, 0x21, 0x06);
 			scmd->scsi_done(scmd);
 			return 0;
 		}
@@ -1536,10 +1517,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 	case READ_10:
 		if (ldev_info->state == MYRB_DEVICE_WO) {
 			/* Data protect, attempt to read invalid data */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						DATA_PROTECT, 0x21, 0x06);
-			scmd->result = (DRIVER_SENSE << 24) |
-				SAM_STAT_CHECK_CONDITION;
+			scsi_build_sense(scmd, 0, DATA_PROTECT, 0x21, 0x06);
 			scmd->scsi_done(scmd);
 			return 0;
 		}
@@ -1553,10 +1531,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 	case READ_12:
 		if (ldev_info->state == MYRB_DEVICE_WO) {
 			/* Data protect, attempt to read invalid data */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						DATA_PROTECT, 0x21, 0x06);
-			scmd->result = (DRIVER_SENSE << 24) |
-				SAM_STAT_CHECK_CONDITION;
+			scsi_build_sense(scmd, 0, DATA_PROTECT, 0x21, 0x06);
 			scmd->scsi_done(scmd);
 			return 0;
 		}
@@ -1569,9 +1544,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 		break;
 	default:
 		/* Illegal request, invalid opcode */
-		scsi_build_sense_buffer(0, scmd->sense_buffer,
-					ILLEGAL_REQUEST, 0x20, 0);
-		scmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
+		scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x20, 0);
 		scmd->scsi_done(scmd);
 		return 0;
 	}
@@ -2352,25 +2325,19 @@ static void myrb_handle_scsi(struct myrb_hba *cb, struct myrb_cmdblk *cmd_blk,
 			"Bad Data Encountered\n");
 		if (scmd->sc_data_direction == DMA_FROM_DEVICE)
 			/* Unrecovered read error */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						MEDIUM_ERROR, 0x11, 0);
+			scsi_build_sense(scmd, 0, MEDIUM_ERROR, 0x11, 0);
 		else
 			/* Write error */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						MEDIUM_ERROR, 0x0C, 0);
-		scmd->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION;
+			scsi_build_sense(scmd, 0, MEDIUM_ERROR, 0x0C, 0);
 		break;
 	case MYRB_STATUS_IRRECOVERABLE_DATA_ERROR:
 		scmd_printk(KERN_ERR, scmd, "Irrecoverable Data Error\n");
 		if (scmd->sc_data_direction == DMA_FROM_DEVICE)
 			/* Unrecovered read error, auto-reallocation failed */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						MEDIUM_ERROR, 0x11, 0x04);
+			scsi_build_sense(scmd, 0, MEDIUM_ERROR, 0x11, 0x04);
 		else
 			/* Write error, auto-reallocation failed */
-			scsi_build_sense_buffer(0, scmd->sense_buffer,
-						MEDIUM_ERROR, 0x0C, 0x02);
-		scmd->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION;
+			scsi_build_sense(scmd, 0, MEDIUM_ERROR, 0x0C, 0x02);
 		break;
 	case MYRB_STATUS_LDRV_NONEXISTENT_OR_OFFLINE:
 		dev_dbg(&scmd->device->sdev_gendev,
@@ -2381,8 +2348,7 @@ static void myrb_handle_scsi(struct myrb_hba *cb, struct myrb_cmdblk *cmd_blk,
 		dev_dbg(&scmd->device->sdev_gendev,
 			    "Attempt to Access Beyond End of Logical Drive");
 		/* Logical block address out of range */
-		scsi_build_sense_buffer(0, scmd->sense_buffer,
-					NOT_READY, 0x21, 0);
+		scsi_build_sense(scmd, 0, NOT_READY, 0x21, 0);
 		break;
 	case MYRB_STATUS_DEVICE_NONRESPONSIVE:
 		dev_dbg(&scmd->device->sdev_gendev, "Device nonresponsive\n");
diff --git a/drivers/scsi/myrs.c b/drivers/scsi/myrs.c
index 3b68c68d1716..26326af23dbc 100644
--- a/drivers/scsi/myrs.c
+++ b/drivers/scsi/myrs.c
@@ -1600,9 +1600,7 @@ static int myrs_queuecommand(struct Scsi_Host *shost,
 
 	switch (scmd->cmnd[0]) {
 	case REPORT_LUNS:
-		scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
-					0x20, 0x0);
-		scmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
+		scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x20, 0x0);
 		scmd->scsi_done(scmd);
 		return 0;
 	case MODE_SENSE:
@@ -1612,10 +1610,7 @@ static int myrs_queuecommand(struct Scsi_Host *shost,
 			if ((scmd->cmnd[2] & 0x3F) != 0x3F &&
 			    (scmd->cmnd[2] & 0x3F) != 0x08) {
 				/* Illegal request, invalid field in CDB */
-				scsi_build_sense_buffer(0, scmd->sense_buffer,
-					ILLEGAL_REQUEST, 0x24, 0);
-				scmd->result = (DRIVER_SENSE << 24) |
-					SAM_STAT_CHECK_CONDITION;
+				scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x24, 0);
 			} else {
 				myrs_mode_sense(cs, scmd, ldev_info);
 				scmd->result = (DID_OK << 16);
diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c
index 134bbd2d8b66..bc9d29e5fdba 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -176,38 +176,40 @@ static nsp32_sync_table nsp32_sync_table_pci[] = {
  * function declaration
  */
 /* module entry point */
-static int         nsp32_probe (struct pci_dev *, const struct pci_device_id *);
-static void        nsp32_remove(struct pci_dev *);
+static int nsp32_probe (struct pci_dev *, const struct pci_device_id *);
+static void nsp32_remove(struct pci_dev *);
 static int  __init init_nsp32  (void);
 static void __exit exit_nsp32  (void);
 
 /* struct struct scsi_host_template */
-static int         nsp32_show_info   (struct seq_file *, struct Scsi_Host *);
+static int	   nsp32_show_info   (struct seq_file *, struct Scsi_Host *);
 
-static int         nsp32_detect      (struct pci_dev *pdev);
-static int         nsp32_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
-static const char *nsp32_info        (struct Scsi_Host *);
-static int         nsp32_release     (struct Scsi_Host *);
+static int	   nsp32_detect      (struct pci_dev *pdev);
+static int	   nsp32_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
+static const char *nsp32_info	     (struct Scsi_Host *);
+static int	   nsp32_release     (struct Scsi_Host *);
 
 /* SCSI error handler */
-static int         nsp32_eh_abort     (struct scsi_cmnd *);
-static int         nsp32_eh_host_reset(struct scsi_cmnd *);
+static int	   nsp32_eh_abort     (struct scsi_cmnd *);
+static int	   nsp32_eh_host_reset(struct scsi_cmnd *);
 
 /* generate SCSI message */
 static void nsp32_build_identify(struct scsi_cmnd *);
 static void nsp32_build_nop     (struct scsi_cmnd *);
 static void nsp32_build_reject  (struct scsi_cmnd *);
-static void nsp32_build_sdtr    (struct scsi_cmnd *, unsigned char, unsigned char);
+static void nsp32_build_sdtr    (struct scsi_cmnd *, unsigned char,
+				 unsigned char);
 
 /* SCSI message handler */
 static int  nsp32_busfree_occur(struct scsi_cmnd *, unsigned short);
 static void nsp32_msgout_occur (struct scsi_cmnd *);
-static void nsp32_msgin_occur  (struct scsi_cmnd *, unsigned long, unsigned short);
+static void nsp32_msgin_occur  (struct scsi_cmnd *, unsigned long,
+				unsigned short);
 
 static int  nsp32_setup_sg_table    (struct scsi_cmnd *);
 static int  nsp32_selection_autopara(struct scsi_cmnd *);
 static int  nsp32_selection_autoscsi(struct scsi_cmnd *);
-static void nsp32_scsi_done         (struct scsi_cmnd *);
+static void nsp32_scsi_done	    (struct scsi_cmnd *);
 static int  nsp32_arbitration       (struct scsi_cmnd *, unsigned int);
 static int  nsp32_reselection       (struct scsi_cmnd *, unsigned char);
 static void nsp32_adjust_busfree    (struct scsi_cmnd *, unsigned int);
@@ -215,10 +217,13 @@ static void nsp32_restart_autoscsi  (struct scsi_cmnd *, unsigned short);
 
 /* SCSI SDTR */
 static void nsp32_analyze_sdtr       (struct scsi_cmnd *);
-static int  nsp32_search_period_entry(nsp32_hw_data *, nsp32_target *, unsigned char);
-static void nsp32_set_async          (nsp32_hw_data *, nsp32_target *);
-static void nsp32_set_max_sync       (nsp32_hw_data *, nsp32_target *, unsigned char *, unsigned char *);
-static void nsp32_set_sync_entry     (nsp32_hw_data *, nsp32_target *, int, unsigned char);
+static int  nsp32_search_period_entry(nsp32_hw_data *, nsp32_target *,
+				      unsigned char);
+static void nsp32_set_async	     (nsp32_hw_data *, nsp32_target *);
+static void nsp32_set_max_sync       (nsp32_hw_data *, nsp32_target *,
+				      unsigned char *, unsigned char *);
+static void nsp32_set_sync_entry     (nsp32_hw_data *, nsp32_target *,
+				      int, unsigned char);
 
 /* SCSI bus status handler */
 static void nsp32_wait_req    (nsp32_hw_data *, int);
@@ -234,16 +239,16 @@ static irqreturn_t do_nsp32_isr(int, void *);
 static int  nsp32hw_init(nsp32_hw_data *);
 
 /* EEPROM handler */
-static        int  nsp32_getprom_param (nsp32_hw_data *);
-static        int  nsp32_getprom_at24  (nsp32_hw_data *);
-static        int  nsp32_getprom_c16   (nsp32_hw_data *);
-static        void nsp32_prom_start    (nsp32_hw_data *);
-static        void nsp32_prom_stop     (nsp32_hw_data *);
-static        int  nsp32_prom_read     (nsp32_hw_data *, int);
-static        int  nsp32_prom_read_bit (nsp32_hw_data *);
-static        void nsp32_prom_write_bit(nsp32_hw_data *, int);
-static        void nsp32_prom_set      (nsp32_hw_data *, int, int);
-static        int  nsp32_prom_get      (nsp32_hw_data *, int);
+static int  nsp32_getprom_param (nsp32_hw_data *);
+static int  nsp32_getprom_at24  (nsp32_hw_data *);
+static int  nsp32_getprom_c16   (nsp32_hw_data *);
+static void nsp32_prom_start    (nsp32_hw_data *);
+static void nsp32_prom_stop     (nsp32_hw_data *);
+static int  nsp32_prom_read     (nsp32_hw_data *, int);
+static int  nsp32_prom_read_bit (nsp32_hw_data *);
+static void nsp32_prom_write_bit(nsp32_hw_data *, int);
+static void nsp32_prom_set      (nsp32_hw_data *, int, int);
+static int  nsp32_prom_get      (nsp32_hw_data *, int);
 
 /* debug/warning/info message */
 static void nsp32_message (const char *, int, char *, char *, ...);
@@ -356,8 +361,8 @@ static void nsp32_dmessage(const char *func, int line, int mask, char *fmt, ...)
 static void nsp32_build_identify(struct scsi_cmnd *SCpnt)
 {
 	nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata;
-	int pos             = data->msgout_len;
-	int mode            = FALSE;
+	int pos		    = data->msgout_len;
+	int mode	    = FALSE;
 
 	/* XXX: Auto DiscPriv detection is progressing... */
 	if (disc_priv == 0) {
@@ -377,13 +382,13 @@ static void nsp32_build_sdtr(struct scsi_cmnd    *SCpnt,
 			     unsigned char offset)
 {
 	nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata;
-	int pos             = data->msgout_len;
+	int pos = data->msgout_len;
 
 	data->msgoutbuf[pos] = EXTENDED_MESSAGE;  pos++;
 	data->msgoutbuf[pos] = EXTENDED_SDTR_LEN; pos++;
 	data->msgoutbuf[pos] = EXTENDED_SDTR;     pos++;
-	data->msgoutbuf[pos] = period;            pos++;
-	data->msgoutbuf[pos] = offset;            pos++;
+	data->msgoutbuf[pos] = period;		  pos++;
+	data->msgoutbuf[pos] = offset;		  pos++;
 
 	data->msgout_len = pos;
 }
@@ -394,7 +399,7 @@ static void nsp32_build_sdtr(struct scsi_cmnd    *SCpnt,
 static void nsp32_build_nop(struct scsi_cmnd *SCpnt)
 {
 	nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata;
-	int            pos  = data->msgout_len;
+	int pos  = data->msgout_len;
 
 	if (pos != 0) {
 		nsp32_msg(KERN_WARNING,
@@ -412,12 +417,12 @@ static void nsp32_build_nop(struct scsi_cmnd *SCpnt)
 static void nsp32_build_reject(struct scsi_cmnd *SCpnt)
 {
 	nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata;
-	int            pos  = data->msgout_len;
+	int pos  = data->msgout_len;
 
 	data->msgoutbuf[pos] = MESSAGE_REJECT; pos++;
 	data->msgout_len = pos;
 }
-	
+
 /*
  * timer
  */
@@ -450,7 +455,7 @@ static int nsp32_selection_autopara(struct scsi_cmnd *SCpnt)
 	unsigned char	phase;
 	int		i, ret;
 	unsigned int	msgout;
-	u16_le	        s;
+	u16_le		s;
 
 	nsp32_dbg(NSP32_DEBUG_AUTOSCSI, "in");
 
@@ -482,7 +487,7 @@ static int nsp32_selection_autopara(struct scsi_cmnd *SCpnt)
 			 * the sending order of the message is:
 			 *  MCNT 3: MSG#0 -> MSG#1 -> MSG#2
 			 *  MCNT 2:          MSG#1 -> MSG#2
-			 *  MCNT 1:                   MSG#2    
+			 *  MCNT 1:                   MSG#2
 			 */
 			msgout >>= 8;
 			msgout |= ((unsigned int)(data->msgoutbuf[i]) << 24);
@@ -494,7 +499,8 @@ static int nsp32_selection_autopara(struct scsi_cmnd *SCpnt)
 		msgout = 0;
 	}
 
-	// nsp_dbg(NSP32_DEBUG_AUTOSCSI, "sel time out=0x%x\n", nsp32_read2(base, SEL_TIME_OUT));
+	// nsp_dbg(NSP32_DEBUG_AUTOSCSI, "sel time out=0x%x\n",
+	// nsp32_read2(base, SEL_TIME_OUT));
 	// nsp32_write2(base, SEL_TIME_OUT,   SEL_TIMEOUT_TIME);
 
 	/*
@@ -520,10 +526,10 @@ static int nsp32_selection_autopara(struct scsi_cmnd *SCpnt)
 
 	/* command control */
 	param->command_control = cpu_to_le16(CLEAR_CDB_FIFO_POINTER |
-					     AUTOSCSI_START         |
-					     AUTO_MSGIN_00_OR_04    |
-					     AUTO_MSGIN_02          |
-					     AUTO_ATN               );
+					     AUTOSCSI_START |
+					     AUTO_MSGIN_00_OR_04 |
+					     AUTO_MSGIN_02 |
+					     AUTO_ATN );
 
 
 	/* transfer control */
@@ -555,9 +561,9 @@ static int nsp32_selection_autopara(struct scsi_cmnd *SCpnt)
 	/*
 	 * transfer parameter to ASIC
 	 */
-	nsp32_write4(base, SGT_ADR,         data->auto_paddr);
-	nsp32_write2(base, COMMAND_CONTROL, CLEAR_CDB_FIFO_POINTER |
-		                            AUTO_PARAMETER         );
+	nsp32_write4(base, SGT_ADR, data->auto_paddr);
+	nsp32_write2(base, COMMAND_CONTROL,
+		     CLEAR_CDB_FIFO_POINTER | AUTO_PARAMETER );
 
 	/*
 	 * Check arbitration
@@ -599,7 +605,7 @@ static int nsp32_selection_autoscsi(struct scsi_cmnd *SCpnt)
 		SCpnt->result = DID_BUS_BUSY << 16;
 		status = 1;
 		goto out;
-        }
+	}
 
 	/*
 	 * clear execph
@@ -616,13 +622,14 @@ static int nsp32_selection_autoscsi(struct scsi_cmnd *SCpnt)
 	 */
 	for (i = 0; i < SCpnt->cmd_len; i++) {
 		nsp32_write1(base, COMMAND_DATA, SCpnt->cmnd[i]);
-        }
+	}
 	nsp32_dbg(NSP32_DEBUG_CDB_CONTENTS, "CDB[0]=[0x%x]", SCpnt->cmnd[0]);
 
 	/*
 	 * set SCSIOUT LATCH(initiator)/TARGET(target) (OR-ed) ID
 	 */
-	nsp32_write1(base, SCSI_OUT_LATCH_TARGET_ID, BIT(host_id) | BIT(target));
+	nsp32_write1(base, SCSI_OUT_LATCH_TARGET_ID,
+		     BIT(host_id) | BIT(target));
 
 	/*
 	 * set SCSI MSGOUT REG
@@ -642,7 +649,7 @@ static int nsp32_selection_autoscsi(struct scsi_cmnd *SCpnt)
 			 * the sending order of the message is:
 			 *  MCNT 3: MSG#0 -> MSG#1 -> MSG#2
 			 *  MCNT 2:          MSG#1 -> MSG#2
-			 *  MCNT 1:                   MSG#2    
+			 *  MCNT 1:                   MSG#2
 			 */
 			msgout >>= 8;
 			msgout |= ((unsigned int)(data->msgoutbuf[i]) << 24);
@@ -662,7 +669,7 @@ static int nsp32_selection_autoscsi(struct scsi_cmnd *SCpnt)
 
 	/*
 	 * set SREQ hazard killer sampling rate
-	 * 
+	 *
 	 * TODO: sample_rate (BASE+0F) is 0 when internal clock = 40MHz.
 	 *      check other internal clock!
 	 */
@@ -687,7 +694,8 @@ static int nsp32_selection_autoscsi(struct scsi_cmnd *SCpnt)
 	nsp32_dbg(NSP32_DEBUG_AUTOSCSI,
 		  "syncreg=0x%x, ackwidth=0x%x, sgtpaddr=0x%x, id=0x%x",
 		  nsp32_read1(base, SYNC_REG), nsp32_read1(base, ACK_WIDTH),
-		  nsp32_read4(base, SGT_ADR), nsp32_read1(base, SCSI_OUT_LATCH_TARGET_ID));
+		  nsp32_read4(base, SGT_ADR),
+		  nsp32_read1(base, SCSI_OUT_LATCH_TARGET_ID));
 	nsp32_dbg(NSP32_DEBUG_AUTOSCSI, "msgout_len=%d, msgout=0x%x",
 		  data->msgout_len, msgout);
 
@@ -716,10 +724,10 @@ static int nsp32_selection_autoscsi(struct scsi_cmnd *SCpnt)
 	 * start AUTO SCSI, kick off arbitration
 	 */
 	command = (CLEAR_CDB_FIFO_POINTER |
-		   AUTOSCSI_START         |
+		   AUTOSCSI_START	  |
 		   AUTO_MSGIN_00_OR_04    |
-		   AUTO_MSGIN_02          |
-		   AUTO_ATN                );
+		   AUTO_MSGIN_02	  |
+		   AUTO_ATN);
 	nsp32_write2(base, COMMAND_CONTROL, command);
 
 	/*
@@ -739,9 +747,9 @@ static int nsp32_selection_autoscsi(struct scsi_cmnd *SCpnt)
 
 /*
  * Arbitration Status Check
- *	
+ *
  * Note: Arbitration counter is waited during ARBIT_GO is not lifting.
- *	 Using udelay(1) consumes CPU time and system time, but 
+ *	 Using udelay(1) consumes CPU time and system time, but
  *	 arbitration delay time is defined minimal 2.4us in SCSI
  *	 specification, thus udelay works as coarse grained wait timer.
  */
@@ -776,7 +784,7 @@ static int nsp32_arbitration(struct scsi_cmnd *SCpnt, unsigned int base)
 		nsp32_dbg(NSP32_DEBUG_AUTOSCSI, "arbit timeout");
 		SCpnt->result = DID_NO_CONNECT << 16;
 		status = FALSE;
-        }
+	}
 
 	/*
 	 * clear Arbit
@@ -822,7 +830,8 @@ static int nsp32_reselection(struct scsi_cmnd *SCpnt, unsigned char newlun)
 	 * or current nexus is not existed, unexpected
 	 * reselection is occurred. Send reject message.
 	 */
-	if (newid >= ARRAY_SIZE(data->lunt) || newlun >= ARRAY_SIZE(data->lunt[0])) {
+	if (newid >= ARRAY_SIZE(data->lunt) ||
+	    newlun >= ARRAY_SIZE(data->lunt[0])) {
 		nsp32_msg(KERN_WARNING, "unknown id/lun");
 		return FALSE;
 	} else if(data->lunt[newid][newlun].SCpnt == NULL) {
@@ -876,7 +885,8 @@ static int nsp32_setup_sg_table(struct scsi_cmnd *SCpnt)
 
 			if (le32_to_cpu(sgt[i].len) > 0x10000) {
 				nsp32_msg(KERN_ERR,
-					"can't transfer over 64KB at a time, size=0x%x", le32_to_cpu(sgt[i].len));
+					"can't transfer over 64KB at a time, "
+					"size=0x%x", le32_to_cpu(sgt[i].len));
 				return FALSE;
 			}
 			nsp32_dbg(NSP32_DEBUG_SGLIST,
@@ -894,7 +904,8 @@ static int nsp32_setup_sg_table(struct scsi_cmnd *SCpnt)
 	return TRUE;
 }
 
-static int nsp32_queuecommand_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
+static int nsp32_queuecommand_lck(struct scsi_cmnd *SCpnt,
+				  void (*done)(struct scsi_cmnd *))
 {
 	nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata;
 	nsp32_target *target;
@@ -904,8 +915,9 @@ static int nsp32_queuecommand_lck(struct scsi_cmnd *SCpnt, void (*done)(struct s
 	nsp32_dbg(NSP32_DEBUG_QUEUECOMMAND,
 		  "enter. target: 0x%x LUN: 0x%llx cmnd: 0x%x cmndlen: 0x%x "
 		  "use_sg: 0x%x reqbuf: 0x%lx reqlen: 0x%x",
-		  SCpnt->device->id, SCpnt->device->lun, SCpnt->cmnd[0], SCpnt->cmd_len,
-		  scsi_sg_count(SCpnt), scsi_sglist(SCpnt), scsi_bufflen(SCpnt));
+		  SCpnt->device->id, SCpnt->device->lun, SCpnt->cmnd[0],
+		  SCpnt->cmd_len, scsi_sg_count(SCpnt), scsi_sglist(SCpnt),
+		  scsi_bufflen(SCpnt));
 
 	if (data->CurrentSC != NULL) {
 		nsp32_msg(KERN_ERR, "Currentsc != NULL. Cancel this command request");
@@ -936,7 +948,6 @@ static int nsp32_queuecommand_lck(struct scsi_cmnd *SCpnt, void (*done)(struct s
 	SCpnt->scsi_done     = done;
 	data->CurrentSC      = SCpnt;
 	SCpnt->SCp.Status    = SAM_STAT_CHECK_CONDITION;
-	SCpnt->SCp.Message   = 0;
 	scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
 
 	SCpnt->SCp.ptr		    = (char *)scsi_sglist(SCpnt);
@@ -966,7 +977,7 @@ static int nsp32_queuecommand_lck(struct scsi_cmnd *SCpnt, void (*done)(struct s
 	/* Build IDENTIFY */
 	nsp32_build_identify(SCpnt);
 
-	/* 
+	/*
 	 * If target is the first time to transfer after the reset
 	 * (target don't have SDTR_DONE and SDTR_INITIATOR), sync
 	 * message SDTR is needed to do synchronous transfer.
@@ -1051,9 +1062,9 @@ static int nsp32hw_init(nsp32_hw_data *data)
 		nsp32_index_write2(base, CFG_LATE_CACHE, lc_reg & 0xffff);
 	}
 
-	nsp32_write2(base, IRQ_CONTROL,        IRQ_CONTROL_ALL_IRQ_MASK);
-	nsp32_write2(base, TRANSFER_CONTROL,   0);
-	nsp32_write4(base, BM_CNT,             0);
+	nsp32_write2(base, IRQ_CONTROL, IRQ_CONTROL_ALL_IRQ_MASK);
+	nsp32_write2(base, TRANSFER_CONTROL, 0);
+	nsp32_write4(base, BM_CNT, 0);
 	nsp32_write2(base, SCSI_EXECUTE_PHASE, 0);
 
 	do {
@@ -1081,12 +1092,13 @@ static int nsp32hw_init(nsp32_hw_data *data)
 		  nsp32_index_read1(base, FIFO_EMPTY_SHLD_COUNT));
 
 	nsp32_index_write1(base, CLOCK_DIV, data->clock);
-	nsp32_index_write1(base, BM_CYCLE,  MEMRD_CMD1 | SGT_AUTO_PARA_MEMED_CMD);
+	nsp32_index_write1(base, BM_CYCLE,
+			   MEMRD_CMD1 | SGT_AUTO_PARA_MEMED_CMD);
 	nsp32_write1(base, PARITY_CONTROL, 0);	/* parity check is disable */
 
 	/*
 	 * initialize MISC_WRRD register
-	 * 
+	 *
 	 * Note: Designated parameters is obeyed as following:
 	 *	MISC_SCSI_DIRECTION_DETECTOR_SELECT: It must be set.
 	 *	MISC_MASTER_TERMINATION_SELECT:      It must be set.
@@ -1101,10 +1113,10 @@ static int nsp32hw_init(nsp32_hw_data *data)
 	 */
 	nsp32_index_write2(base, MISC_WR,
 			   (SCSI_DIRECTION_DETECTOR_SELECT |
-			    DELAYED_BMSTART                |
-			    MASTER_TERMINATION_SELECT      |
-			    BMREQ_NEGATE_TIMING_SEL        |
-			    AUTOSEL_TIMING_SEL             |
+			    DELAYED_BMSTART |
+			    MASTER_TERMINATION_SELECT |
+			    BMREQ_NEGATE_TIMING_SEL |
+			    AUTOSEL_TIMING_SEL |
 			    BMSTOP_CHANGE2_NONDATA_PHASE));
 
 	nsp32_index_write1(base, TERM_PWR_CONTROL, 0);
@@ -1125,15 +1137,16 @@ static int nsp32hw_init(nsp32_hw_data *data)
 	 * enable to select designated IRQ (except for
 	 * IRQSELECT_SERR, IRQSELECT_PERR, IRQSELECT_BMCNTERR)
 	 */
-	nsp32_index_write2(base, IRQ_SELECT, IRQSELECT_TIMER_IRQ         |
-			                     IRQSELECT_SCSIRESET_IRQ     |
-			                     IRQSELECT_FIFO_SHLD_IRQ     |
-			                     IRQSELECT_RESELECT_IRQ      |
-			                     IRQSELECT_PHASE_CHANGE_IRQ  |
-			                     IRQSELECT_AUTO_SCSI_SEQ_IRQ |
-			                  //   IRQSELECT_BMCNTERR_IRQ      |
-			                     IRQSELECT_TARGET_ABORT_IRQ  |
-			                     IRQSELECT_MASTER_ABORT_IRQ );
+	nsp32_index_write2(base, IRQ_SELECT,
+			   IRQSELECT_TIMER_IRQ |
+			   IRQSELECT_SCSIRESET_IRQ |
+			   IRQSELECT_FIFO_SHLD_IRQ |
+			   IRQSELECT_RESELECT_IRQ |
+			   IRQSELECT_PHASE_CHANGE_IRQ |
+			   IRQSELECT_AUTO_SCSI_SEQ_IRQ |
+			   //   IRQSELECT_BMCNTERR_IRQ      |
+			   IRQSELECT_TARGET_ABORT_IRQ |
+			   IRQSELECT_MASTER_ABORT_IRQ );
 	nsp32_write2(base, IRQ_CONTROL, 0);
 
 	/* PCI LED off */
@@ -1163,11 +1176,12 @@ static irqreturn_t do_nsp32_isr(int irq, void *dev_id)
 	 * IRQ check, then enable IRQ mask
 	 */
 	irq_stat = nsp32_read2(base, IRQ_STATUS);
-	nsp32_dbg(NSP32_DEBUG_INTR, 
+	nsp32_dbg(NSP32_DEBUG_INTR,
 		  "enter IRQ: %d, IRQstatus: 0x%x", irq, irq_stat);
 	/* is this interrupt comes from Ninja asic? */
 	if ((irq_stat & IRQSTATUS_ANY_IRQ) == 0) {
-		nsp32_dbg(NSP32_DEBUG_INTR, "shared interrupt: irq other 0x%x", irq_stat);
+		nsp32_dbg(NSP32_DEBUG_INTR,
+			  "shared interrupt: irq other 0x%x", irq_stat);
 		goto out2;
 	}
 	handled = 1;
@@ -1207,7 +1221,8 @@ static irqreturn_t do_nsp32_isr(int irq, void *dev_id)
 
 	if (SCpnt == NULL) {
 		nsp32_msg(KERN_WARNING, "SCpnt==NULL this can't be happened");
-		nsp32_msg(KERN_WARNING, "irq_stat=0x%x trans_stat=0x%x", irq_stat, trans_stat);
+		nsp32_msg(KERN_WARNING, "irq_stat=0x%x trans_stat=0x%x",
+			  irq_stat, trans_stat);
 		goto out;
 	}
 
@@ -1265,13 +1280,13 @@ static irqreturn_t do_nsp32_isr(int irq, void *dev_id)
 				  "Data in/out phase processed");
 
 			/* read BMCNT, SGT pointer addr */
-			nsp32_dbg(NSP32_DEBUG_INTR, "BMCNT=0x%lx", 
+			nsp32_dbg(NSP32_DEBUG_INTR, "BMCNT=0x%lx",
 				    nsp32_read4(base, BM_CNT));
-			nsp32_dbg(NSP32_DEBUG_INTR, "addr=0x%lx", 
+			nsp32_dbg(NSP32_DEBUG_INTR, "addr=0x%lx",
 				    nsp32_read4(base, SGT_ADR));
-			nsp32_dbg(NSP32_DEBUG_INTR, "SACK=0x%lx", 
+			nsp32_dbg(NSP32_DEBUG_INTR, "SACK=0x%lx",
 				    nsp32_read4(base, SACK_CNT));
-			nsp32_dbg(NSP32_DEBUG_INTR, "SSACK=0x%lx", 
+			nsp32_dbg(NSP32_DEBUG_INTR, "SSACK=0x%lx",
 				    nsp32_read4(base, SAVED_SACK_CNT));
 
 			scsi_set_resid(SCpnt, 0); /* all data transferred! */
@@ -1306,7 +1321,7 @@ static irqreturn_t do_nsp32_isr(int irq, void *dev_id)
 			 * Read CSB and substitute CSB for SCpnt->result
 			 * to save status phase stutas byte.
 			 * scsi error handler checks host_byte (DID_*:
-			 * low level driver to indicate status), then checks 
+			 * low level driver to indicate status), then checks
 			 * status_byte (SCSI status byte).
 			 */
 			SCpnt->result =	(int)nsp32_read1(base, SCSI_CSB_IN);
@@ -1314,7 +1329,7 @@ static irqreturn_t do_nsp32_isr(int irq, void *dev_id)
 
 		if (auto_stat & ILLEGAL_PHASE) {
 			/* Illegal phase is detected. SACK is not back. */
-			nsp32_msg(KERN_WARNING, 
+			nsp32_msg(KERN_WARNING,
 				  "AUTO SCSI ILLEGAL PHASE OCCUR!!!!");
 
 			/* TODO: currently we don't have any action... bus reset? */
@@ -1367,7 +1382,8 @@ static irqreturn_t do_nsp32_isr(int irq, void *dev_id)
 			break;
 		default:
 			nsp32_dbg(NSP32_DEBUG_INTR, "fifo/other phase");
-			nsp32_dbg(NSP32_DEBUG_INTR, "irq_stat=0x%x trans_stat=0x%x", irq_stat, trans_stat);
+			nsp32_dbg(NSP32_DEBUG_INTR, "irq_stat=0x%x trans_stat=0x%x",
+				  irq_stat, trans_stat);
 			show_busphase(busphase);
 			break;
 		}
@@ -1433,32 +1449,39 @@ static int nsp32_show_info(struct seq_file *m, struct Scsi_Host *host)
 {
 	unsigned long     flags;
 	nsp32_hw_data    *data;
-	int               hostno;
+	int		  hostno;
 	unsigned int      base;
 	unsigned char     mode_reg;
-	int               id, speed;
-	long              model;
+	int		  id, speed;
+	long		  model;
 
 	hostno = host->host_no;
 	data = (nsp32_hw_data *)host->hostdata;
 	base = host->io_port;
 
 	seq_puts(m, "NinjaSCSI-32 status\n\n");
-	seq_printf(m, "Driver version:        %s, $Revision: 1.33 $\n", nsp32_release_version);
-	seq_printf(m, "SCSI host No.:         %d\n",		hostno);
-	seq_printf(m, "IRQ:                   %d\n",		host->irq);
-	seq_printf(m, "IO:                    0x%lx-0x%lx\n", host->io_port, host->io_port + host->n_io_port - 1);
-	seq_printf(m, "MMIO(virtual address): 0x%lx-0x%lx\n",	host->base, host->base + data->MmioLength - 1);
-	seq_printf(m, "sg_tablesize:          %d\n",		host->sg_tablesize);
-	seq_printf(m, "Chip revision:         0x%x\n",		(nsp32_read2(base, INDEX_REG) >> 8) & 0xff);
+	seq_printf(m, "Driver version:        %s, $Revision: 1.33 $\n",
+		   nsp32_release_version);
+	seq_printf(m, "SCSI host No.:         %d\n", hostno);
+	seq_printf(m, "IRQ:                   %d\n", host->irq);
+	seq_printf(m, "IO:                    0x%lx-0x%lx\n",
+		   host->io_port, host->io_port + host->n_io_port - 1);
+	seq_printf(m, "MMIO(virtual address): 0x%lx-0x%lx\n",
+		   host->base, host->base + data->MmioLength - 1);
+	seq_printf(m, "sg_tablesize:          %d\n",
+		   host->sg_tablesize);
+	seq_printf(m, "Chip revision:         0x%x\n",
+		   (nsp32_read2(base, INDEX_REG) >> 8) & 0xff);
 
 	mode_reg = nsp32_index_read1(base, CHIP_MODE);
 	model    = data->pci_devid->driver_data;
 
 #ifdef CONFIG_PM
-	seq_printf(m, "Power Management:      %s\n",          (mode_reg & OPTF) ? "yes" : "no");
+	seq_printf(m, "Power Management:      %s\n",
+		   (mode_reg & OPTF) ? "yes" : "no");
 #endif
-	seq_printf(m, "OEM:                   %ld, %s\n",     (mode_reg & (OEM0|OEM1)), nsp32_model[model]);
+	seq_printf(m, "OEM:                   %ld, %s\n",
+		   (mode_reg & (OEM0|OEM1)), nsp32_model[model]);
 
 	spin_lock_irqsave(&(data->Lock), flags);
 	seq_printf(m, "CurrentSC:             0x%p\n\n",      data->CurrentSC);
@@ -1476,7 +1499,7 @@ static int nsp32_show_info(struct seq_file *m, struct Scsi_Host *host)
 		}
 
 		if (data->target[id].sync_flag == SDTR_DONE) {
-			if (data->target[id].period == 0            &&
+			if (data->target[id].period == 0 &&
 			    data->target[id].offset == ASYNC_OFFSET ) {
 				seq_puts(m, "async");
 			} else {
@@ -1518,7 +1541,7 @@ static void nsp32_scsi_done(struct scsi_cmnd *SCpnt)
 	 * clear TRANSFERCONTROL_BM_START
 	 */
 	nsp32_write2(base, TRANSFER_CONTROL, 0);
-	nsp32_write4(base, BM_CNT,           0);
+	nsp32_write4(base, BM_CNT, 0);
 
 	/*
 	 * call scsi_done
@@ -1528,10 +1551,10 @@ static void nsp32_scsi_done(struct scsi_cmnd *SCpnt)
 	/*
 	 * reset parameters
 	 */
-	data->cur_lunt->SCpnt = NULL;
-	data->cur_lunt        = NULL;
-	data->cur_target      = NULL;
-	data->CurrentSC      = NULL;
+	data->cur_lunt->SCpnt	= NULL;
+	data->cur_lunt		= NULL;
+	data->cur_target	= NULL;
+	data->CurrentSC		= NULL;
 }
 
 
@@ -1553,7 +1576,7 @@ static int nsp32_busfree_occur(struct scsi_cmnd *SCpnt, unsigned short execph)
 	nsp32_dbg(NSP32_DEBUG_BUSFREE, "enter execph=0x%x", execph);
 	show_autophase(execph);
 
-	nsp32_write4(base, BM_CNT,           0);
+	nsp32_write4(base, BM_CNT, 0);
 	nsp32_write2(base, TRANSFER_CONTROL, 0);
 
 	/*
@@ -1561,7 +1584,7 @@ static int nsp32_busfree_occur(struct scsi_cmnd *SCpnt, unsigned short execph)
 	 *
 	 * VALID:
 	 *   Save Data Pointer is received. Adjust pointer.
-	 *   
+	 *
 	 * NO-VALID:
 	 *   SCSI-3 says if Save Data Pointer is not received, then we restart
 	 *   processing and we can't adjust any SCSI data pointer in next data
@@ -1574,7 +1597,7 @@ static int nsp32_busfree_occur(struct scsi_cmnd *SCpnt, unsigned short execph)
 		 * Check sack_cnt/saved_sack_cnt, then adjust sg table if
 		 * needed.
 		 */
-		if (!(execph & MSGIN_00_VALID) && 
+		if (!(execph & MSGIN_00_VALID) &&
 		    ((execph & DATA_IN_PHASE) || (execph & DATA_OUT_PHASE))) {
 			unsigned int sacklen, s_sacklen;
 
@@ -1617,7 +1640,7 @@ static int nsp32_busfree_occur(struct scsi_cmnd *SCpnt, unsigned short execph)
 		 * no processing.
 		 */
 	}
-	
+
 	if (execph & MSGIN_03_VALID) {
 		/* MsgIn03 was valid to be processed. No need processing. */
 	}
@@ -1639,7 +1662,7 @@ static int nsp32_busfree_occur(struct scsi_cmnd *SCpnt, unsigned short execph)
 		 * negotiating.
 		 */
 		if (execph & (MSGIN_00_VALID | MSGIN_04_VALID)) {
-			/* 
+			/*
 			 * If valid message is received, then
 			 * negotiation is succeeded.
 			 */
@@ -1666,21 +1689,18 @@ static int nsp32_busfree_occur(struct scsi_cmnd *SCpnt, unsigned short execph)
 		nsp32_dbg(NSP32_DEBUG_BUSFREE, "command complete");
 
 		SCpnt->SCp.Status  = nsp32_read1(base, SCSI_CSB_IN);
-		SCpnt->SCp.Message = 0;
-		nsp32_dbg(NSP32_DEBUG_BUSFREE, 
+		nsp32_dbg(NSP32_DEBUG_BUSFREE,
 			  "normal end stat=0x%x resid=0x%x\n",
 			  SCpnt->SCp.Status, scsi_get_resid(SCpnt));
-		SCpnt->result = (DID_OK             << 16) |
-			        (SCpnt->SCp.Message <<  8) |
-			        (SCpnt->SCp.Status  <<  0);
+		SCpnt->result = (DID_OK << 16) |
+			(SCpnt->SCp.Status << 0);
 		nsp32_scsi_done(SCpnt);
 		/* All operation is done */
 		return TRUE;
 	} else if (execph & MSGIN_04_VALID) {
 		/* MsgIn 04: Disconnect */
 		SCpnt->SCp.Status  = nsp32_read1(base, SCSI_CSB_IN);
-		SCpnt->SCp.Message = 4;
-		
+
 		nsp32_dbg(NSP32_DEBUG_BUSFREE, "disconnect");
 		return TRUE;
 	} else {
@@ -1688,7 +1708,7 @@ static int nsp32_busfree_occur(struct scsi_cmnd *SCpnt, unsigned short execph)
 		nsp32_msg(KERN_WARNING, "unexpected bus free occurred");
 
 		/* DID_ERROR? */
-		//SCpnt->result   = (DID_OK << 16) | (SCpnt->SCp.Message << 8) | (SCpnt->SCp.Status << 0);
+		//SCpnt->result   = (DID_OK << 16) | (SCpnt->SCp.Status << 0);
 		SCpnt->result = DID_ERROR << 16;
 		nsp32_scsi_done(SCpnt);
 		return TRUE;
@@ -1706,12 +1726,12 @@ static int nsp32_busfree_occur(struct scsi_cmnd *SCpnt, unsigned short execph)
 static void nsp32_adjust_busfree(struct scsi_cmnd *SCpnt, unsigned int s_sacklen)
 {
 	nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata;
-	int                   old_entry = data->cur_entry;
-	int                   new_entry;
-	int                   sg_num = data->cur_lunt->sg_num;
-	nsp32_sgtable *sgt    = data->cur_lunt->sglun->sgt;
-	unsigned int          restlen, sentlen;
-	u32_le                len, addr;
+	int old_entry = data->cur_entry;
+	int new_entry;
+	int sg_num = data->cur_lunt->sg_num;
+	nsp32_sgtable *sgt = data->cur_lunt->sglun->sgt;
+	unsigned int restlen, sentlen;
+	u32_le len, addr;
 
 	nsp32_dbg(NSP32_DEBUG_SGLIST, "old resid=0x%x", scsi_get_resid(SCpnt));
 
@@ -1719,7 +1739,7 @@ static void nsp32_adjust_busfree(struct scsi_cmnd *SCpnt, unsigned int s_sacklen
 	s_sacklen -= le32_to_cpu(sgt[old_entry].addr) & 3;
 
 	/*
-	 * calculate new_entry from sack count and each sgt[].len 
+	 * calculate new_entry from sack count and each sgt[].len
 	 * calculate the byte which is intent to send
 	 */
 	sentlen = 0;
@@ -1737,8 +1757,10 @@ static void nsp32_adjust_busfree(struct scsi_cmnd *SCpnt, unsigned int s_sacklen
 
 	if (sentlen == s_sacklen) {
 		/* XXX: confirm it's ok or not */
-		/* In this case, it's ok because we are at 
-		   the head element of the sg. restlen is correctly calculated. */
+		/* In this case, it's ok because we are at
+		 * the head element of the sg. restlen is correctly
+		 * calculated.
+		 */
 	}
 
 	/* calculate the rest length for transferring */
@@ -1753,7 +1775,7 @@ static void nsp32_adjust_busfree(struct scsi_cmnd *SCpnt, unsigned int s_sacklen
 
 	/* set cur_entry with new_entry */
 	data->cur_entry = new_entry;
- 
+
 	return;
 
  last:
@@ -1781,7 +1803,7 @@ static void nsp32_msgout_occur(struct scsi_cmnd *SCpnt)
 	nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata;
 	unsigned int base   = SCpnt->device->host->io_port;
 	int i;
-	
+
 	nsp32_dbg(NSP32_DEBUG_MSGOUTOCCUR,
 		  "enter: msgout_len: 0x%x", data->msgout_len);
 
@@ -1815,10 +1837,10 @@ static void nsp32_msgout_occur(struct scsi_cmnd *SCpnt)
 			//nsp32_restart_autoscsi(SCpnt, command);
 			nsp32_write2(base, COMMAND_CONTROL,
 					 (CLEAR_CDB_FIFO_POINTER |
-					  AUTO_COMMAND_PHASE     |
-					  AUTOSCSI_RESTART       |
-					  AUTO_MSGIN_00_OR_04    |
-					  AUTO_MSGIN_02          ));
+					  AUTO_COMMAND_PHASE |
+					  AUTOSCSI_RESTART |
+					  AUTO_MSGIN_00_OR_04 |
+					  AUTO_MSGIN_02 ));
 		}
 		/*
 		 * Write data with SACK, then wait sack is
@@ -1918,9 +1940,9 @@ static void nsp32_msgin_occur(struct scsi_cmnd     *SCpnt,
 	unsigned char  msgtype;
 	unsigned char  newlun;
 	unsigned short command  = 0;
-	int            msgclear = TRUE;
-	long           new_sgtp;
-	int            ret;
+	int	       msgclear = TRUE;
+	long	       new_sgtp;
+	int	       ret;
 
 	/*
 	 * read first message
@@ -1960,7 +1982,7 @@ static void nsp32_msgin_occur(struct scsi_cmnd     *SCpnt,
 			goto reject;
 		}
 	}
-	
+
 	/*
 	 * processing messages except for IDENTIFY
 	 *
@@ -1976,10 +1998,10 @@ static void nsp32_msgin_occur(struct scsi_cmnd     *SCpnt,
 		 * These messages should not be occurred.
 		 * They should be processed on AutoSCSI sequencer.
 		 */
-		nsp32_msg(KERN_WARNING, 
+		nsp32_msg(KERN_WARNING,
 			   "unexpected message of AutoSCSI MsgIn: 0x%x", msg);
 		break;
-		
+
 	case RESTORE_POINTERS:
 		/*
 		 * AutoMsgIn03 is disabled, and HBA gets this message.
@@ -2005,7 +2027,7 @@ static void nsp32_msgin_occur(struct scsi_cmnd     *SCpnt,
 		/*
 		 * set new sg pointer
 		 */
-		new_sgtp = data->cur_lunt->sglun_paddr + 
+		new_sgtp = data->cur_lunt->sglun_paddr +
 			(data->cur_lunt->cur_entry * sizeof(nsp32_sgtable));
 		nsp32_write4(base, SGT_ADR, new_sgtp);
 
@@ -2016,13 +2038,13 @@ static void nsp32_msgin_occur(struct scsi_cmnd     *SCpnt,
 		 * These messages should not be occurred.
 		 * They should be processed on AutoSCSI sequencer.
 		 */
-		nsp32_msg (KERN_WARNING, 
+		nsp32_msg (KERN_WARNING,
 			   "unexpected message of AutoSCSI MsgIn: SAVE_POINTERS");
-		
+
 		break;
-		
+
 	case MESSAGE_REJECT:
-		/* If previous message_out is sending SDTR, and get 
+		/* If previous message_out is sending SDTR, and get
 		   message_reject from target, SDTR negotiation is failed */
 		if (data->cur_target->sync_flag &
 				(SDTR_INITIATOR | SDTR_TARGET)) {
@@ -2041,7 +2063,7 @@ static void nsp32_msgin_occur(struct scsi_cmnd     *SCpnt,
 	case LINKED_CMD_COMPLETE:
 	case LINKED_FLG_CMD_COMPLETE:
 		/* queue tag is not supported currently */
-		nsp32_msg (KERN_WARNING, 
+		nsp32_msg (KERN_WARNING,
 			   "unsupported message: 0x%x", msgtype);
 		break;
 
@@ -2094,7 +2116,7 @@ static void nsp32_msgin_occur(struct scsi_cmnd     *SCpnt,
 		}
 
 		/*
-		 * Reach here means regular length of each type of 
+		 * Reach here means regular length of each type of
 		 * extended messages.
 		 */
 		switch (data->msginbuf[2]) {
@@ -2129,12 +2151,12 @@ static void nsp32_msgin_occur(struct scsi_cmnd     *SCpnt,
 			goto reject; /* not implemented yet */
 
 			break;
-			
+
 		default:
 			goto reject;
 		}
 		break;
-		
+
 	default:
 		goto reject;
 	}
@@ -2150,7 +2172,7 @@ static void nsp32_msgin_occur(struct scsi_cmnd     *SCpnt,
 		 * AutoSCSI restart, at the same time MsgOutOccur should be
 		 * happened (however, such situation is really possible...?).
 		 */
-		if (data->msgout_len > 0) {	
+		if (data->msgout_len > 0) {
 			nsp32_write4(base, SCSI_MSG_OUT, 0);
 			command |= AUTO_ATN;
 		}
@@ -2192,7 +2214,7 @@ static void nsp32_msgin_occur(struct scsi_cmnd     *SCpnt,
 	return;
 
  reject:
-	nsp32_msg(KERN_WARNING, 
+	nsp32_msg(KERN_WARNING,
 		  "invalid or unsupported MessageIn, rejected. "
 		  "current msg: 0x%x (len: 0x%x), processing msg: 0x%x",
 		  msg, data->msgin_len, msgtype);
@@ -2203,15 +2225,15 @@ static void nsp32_msgin_occur(struct scsi_cmnd     *SCpnt,
 }
 
 /*
- * 
+ *
  */
 static void nsp32_analyze_sdtr(struct scsi_cmnd *SCpnt)
 {
 	nsp32_hw_data   *data = (nsp32_hw_data *)SCpnt->device->host->hostdata;
-	nsp32_target     *target     = data->cur_target;
-	unsigned char     get_period = data->msginbuf[3];
-	unsigned char     get_offset = data->msginbuf[4];
-	int               entry;
+	nsp32_target    *target     = data->cur_target;
+	unsigned char    get_period = data->msginbuf[3];
+	unsigned char    get_offset = data->msginbuf[4];
+	int		 entry;
 
 	nsp32_dbg(NSP32_DEBUG_MSGINOCCUR, "enter");
 
@@ -2219,16 +2241,16 @@ static void nsp32_analyze_sdtr(struct scsi_cmnd *SCpnt)
 	 * If this inititor sent the SDTR message, then target responds SDTR,
 	 * initiator SYNCREG, ACKWIDTH from SDTR parameter.
 	 * Messages are not appropriate, then send back reject message.
-	 * If initiator did not send the SDTR, but target sends SDTR, 
+	 * If initiator did not send the SDTR, but target sends SDTR,
 	 * initiator calculator the appropriate parameter and send back SDTR.
-	 */	
+	 */
 	if (target->sync_flag & SDTR_INITIATOR) {
 		/*
 		 * Initiator sent SDTR, the target responds and
 		 * send back negotiation SDTR.
 		 */
 		nsp32_dbg(NSP32_DEBUG_MSGINOCCUR, "target responds SDTR");
-	
+
 		target->sync_flag &= ~SDTR_INITIATOR;
 		target->sync_flag |= SDTR_DONE;
 
@@ -2242,7 +2264,7 @@ static void nsp32_analyze_sdtr(struct scsi_cmnd *SCpnt)
 			 */
 			goto reject;
 		}
-		
+
 		if (get_offset == ASYNC_OFFSET) {
 			/*
 			 * Negotiation is succeeded, the target want
@@ -2273,7 +2295,7 @@ static void nsp32_analyze_sdtr(struct scsi_cmnd *SCpnt)
 
 		if (entry < 0) {
 			/*
-			 * Target want to use long period which is not 
+			 * Target want to use long period which is not
 			 * acceptable NinjaSCSI-32Bi/UDE.
 			 */
 			goto reject;
@@ -2286,7 +2308,7 @@ static void nsp32_analyze_sdtr(struct scsi_cmnd *SCpnt)
 	} else {
 		/* Target send SDTR to initiator. */
 		nsp32_dbg(NSP32_DEBUG_MSGINOCCUR, "target send SDTR");
-	
+
 		target->sync_flag |= SDTR_INITIATOR;
 
 		/* offset: */
@@ -2409,7 +2431,7 @@ static void nsp32_set_max_sync(nsp32_hw_data *data,
  */
 static void nsp32_set_sync_entry(nsp32_hw_data *data,
 				 nsp32_target  *target,
-				 int            entry,
+				 int		entry,
 				 unsigned char  offset)
 {
 	unsigned char period, ackwidth, sample_rate;
@@ -2438,7 +2460,7 @@ static void nsp32_set_sync_entry(nsp32_hw_data *data,
 static void nsp32_wait_req(nsp32_hw_data *data, int state)
 {
 	unsigned int  base      = data->BaseAddress;
-	int           wait_time = 0;
+	int	      wait_time = 0;
 	unsigned char bus, req_bit;
 
 	if (!((state == ASSERT) || (state == NEGATE))) {
@@ -2450,7 +2472,7 @@ static void nsp32_wait_req(nsp32_hw_data *data, int state)
 	do {
 		bus = nsp32_read1(base, SCSI_BUS_MONITOR);
 		if ((bus & BUSMON_REQ) == req_bit) {
-			nsp32_dbg(NSP32_DEBUG_WAIT, 
+			nsp32_dbg(NSP32_DEBUG_WAIT,
 				  "wait_time: %d", wait_time);
 			return;
 		}
@@ -2467,7 +2489,7 @@ static void nsp32_wait_req(nsp32_hw_data *data, int state)
 static void nsp32_wait_sack(nsp32_hw_data *data, int state)
 {
 	unsigned int  base      = data->BaseAddress;
-	int           wait_time = 0;
+	int	      wait_time = 0;
 	unsigned char bus, ack_bit;
 
 	if (!((state == ASSERT) || (state == NEGATE))) {
@@ -2532,8 +2554,8 @@ static int nsp32_detect(struct pci_dev *pdev)
 	struct Scsi_Host *host;	/* registered host structure */
 	struct resource  *res;
 	nsp32_hw_data    *data;
-	int               ret;
-	int               i, j;
+	int		  ret;
+	int		  i, j;
 
 	nsp32_dbg(NSP32_DEBUG_REGISTER, "enter");
 
@@ -2610,7 +2632,7 @@ static int nsp32_detect(struct pci_dev *pdev)
 	 */
 
 	/*
-	 * setup DMA 
+	 * setup DMA
 	 */
 	if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)) != 0) {
 		nsp32_msg (KERN_ERR, "failed to set PCI DMA mask");
@@ -2710,16 +2732,16 @@ static int nsp32_detect(struct pci_dev *pdev)
 		goto free_sg_list;
 	}
 
-        /*
+	/*
          * PCI IO register
          */
 	res = request_region(host->io_port, host->n_io_port, "nsp32");
 	if (res == NULL) {
-		nsp32_msg(KERN_ERR, 
+		nsp32_msg(KERN_ERR,
 			  "I/O region 0x%x+0x%x is already used",
 			  data->BaseAddress, data->NumAddress);
 		goto free_irq;
-        }
+	}
 
 	ret = scsi_add_host(host, &pdev->dev);
 	if (ret) {
@@ -2743,7 +2765,7 @@ static int nsp32_detect(struct pci_dev *pdev)
  free_autoparam:
 	dma_free_coherent(&pdev->dev, sizeof(nsp32_autoparam),
 			    data->autoparam, data->auto_paddr);
-	
+
  scsi_unregister:
 	scsi_host_put(host);
 
@@ -2810,7 +2832,7 @@ static int nsp32_eh_abort(struct scsi_cmnd *SCpnt)
 	}
 
 	nsp32_write2(base, TRANSFER_CONTROL, 0);
-	nsp32_write2(base, BM_CNT,           0);
+	nsp32_write2(base, BM_CNT, 0);
 
 	SCpnt->result = DID_ABORT << 16;
 	nsp32_scsi_done(SCpnt);
@@ -2833,8 +2855,8 @@ static void nsp32_do_bus_reset(nsp32_hw_data *data)
 	 * clear counter
 	 */
 	nsp32_write2(base, TRANSFER_CONTROL, 0);
-	nsp32_write4(base, BM_CNT,           0);
-	nsp32_write4(base, CLR_COUNTER,      CLRCOUNTER_ALLMASK);
+	nsp32_write4(base, BM_CNT, 0);
+	nsp32_write4(base, CLR_COUNTER, CLRCOUNTER_ALLMASK);
 
 	/*
 	 * fall back to asynchronous transfer mode
@@ -2856,7 +2878,7 @@ static void nsp32_do_bus_reset(nsp32_hw_data *data)
 	for(i = 0; i < 5; i++) {
 		intrdat = nsp32_read2(base, IRQ_STATUS); /* dummy read */
 		nsp32_dbg(NSP32_DEBUG_BUSRESET, "irq:1: 0x%x", intrdat);
-        }
+	}
 
 	data->CurrentSC = NULL;
 }
@@ -2867,7 +2889,7 @@ static int nsp32_eh_host_reset(struct scsi_cmnd *SCpnt)
 	unsigned int      base = SCpnt->device->host->io_port;
 	nsp32_hw_data    *data = (nsp32_hw_data *)host->hostdata;
 
-	nsp32_msg(KERN_INFO, "Host Reset");	
+	nsp32_msg(KERN_INFO, "Host Reset");
 	nsp32_dbg(NSP32_DEBUG_BUSRESET, "SCpnt=0x%x", SCpnt);
 
 	spin_lock_irq(SCpnt->device->host->host_lock);
@@ -2942,13 +2964,13 @@ static int nsp32_getprom_param(nsp32_hw_data *data)
  * AT24C01A (Logitec: LHA-600S), AT24C02 (Melco Buffalo: IFC-USLP) data map:
  *
  *   ROMADDR
- *   0x00 - 0x06 :  Device Synchronous Transfer Period (SCSI ID 0 - 6) 
+ *   0x00 - 0x06 :  Device Synchronous Transfer Period (SCSI ID 0 - 6)
  *			Value 0x0: ASYNC, 0x0c: Ultra-20M, 0x19: Fast-10M
  *   0x07        :  HBA Synchronous Transfer Period
  *			Value 0: AutoSync, 1: Manual Setting
  *   0x08 - 0x0f :  Not Used? (0x0)
  *   0x10        :  Bus Termination
- * 			Value 0: Auto[ON], 1: ON, 2: OFF
+ *			Value 0: Auto[ON], 1: ON, 2: OFF
  *   0x11        :  Not Used? (0)
  *   0x12        :  Bus Reset Delay Time (0x03)
  *   0x13        :  Bootable CD Support
@@ -2956,7 +2978,7 @@ static int nsp32_getprom_param(nsp32_hw_data *data)
  *   0x14        :  Device Scan
  *			Bit   7  6  5  4  3  2  1  0
  *			      |  <----------------->
- * 			      |    SCSI ID: Value 0: Skip, 1: YES
+ *			      |    SCSI ID: Value 0: Skip, 1: YES
  *			      |->  Value 0: ALL scan,  Value 1: Manual
  *   0x15 - 0x1b :  Not Used? (0)
  *   0x1c        :  Constant? (0x01) (clock div?)
@@ -2967,10 +2989,10 @@ static int nsp32_getprom_param(nsp32_hw_data *data)
  */
 static int nsp32_getprom_at24(nsp32_hw_data *data)
 {
-	int           ret, i;
-	int           auto_sync;
+	int	      ret, i;
+	int	      auto_sync;
 	nsp32_target *target;
-	int           entry;
+	int	      entry;
 
 	/*
 	 * Reset time which is designated by EEPROM.
@@ -3036,7 +3058,7 @@ static int nsp32_getprom_at24(nsp32_hw_data *data)
  * C16 110 (I-O Data: SC-NBD) data map:
  *
  *   ROMADDR
- *   0x00 - 0x06 :  Device Synchronous Transfer Period (SCSI ID 0 - 6) 
+ *   0x00 - 0x06 :  Device Synchronous Transfer Period (SCSI ID 0 - 6)
  *			Value 0x0: 20MB/S, 0x1: 10MB/S, 0x2: 5MB/S, 0x3: ASYNC
  *   0x07        :  0 (HBA Synchronous Transfer Period: Auto Sync)
  *   0x08 - 0x0f :  Not Used? (0x0)
@@ -3044,7 +3066,7 @@ static int nsp32_getprom_at24(nsp32_hw_data *data)
  *			Value 0: PIO, 1: Busmater
  *   0x11        :  Bus Reset Delay Time (0x00-0x20)
  *   0x12        :  Bus Termination
- * 			Value 0: Disable, 1: Enable
+ *			Value 0: Disable, 1: Enable
  *   0x13 - 0x19 :  Disconnection
  *			Value 0: Disable, 1: Enable
  *   0x1a - 0x7c :  Not Used? (0)
@@ -3054,9 +3076,9 @@ static int nsp32_getprom_at24(nsp32_hw_data *data)
  */
 static int nsp32_getprom_c16(nsp32_hw_data *data)
 {
-	int           ret, i;
+	int	      ret, i;
 	nsp32_target *target;
-	int           entry, val;
+	int	      entry, val;
 
 	/*
 	 * Reset time which is designated by EEPROM.
@@ -3156,7 +3178,7 @@ static int nsp32_prom_read(nsp32_hw_data *data, int romaddr)
 	for (i = 7; i >= 0; i--) {
 		val += (nsp32_prom_read_bit(data) << i);
 	}
-	
+
 	/* no ack */
 	nsp32_prom_write_bit(data, 1);
 
@@ -3281,7 +3303,8 @@ static int nsp32_resume(struct pci_dev *pdev)
 	nsp32_hw_data    *data = (nsp32_hw_data *)host->hostdata;
 	unsigned short    reg;
 
-	nsp32_msg(KERN_INFO, "pci-resume: pdev=0x%p, slot=%s, host=0x%p", pdev, pci_name(pdev), host);
+	nsp32_msg(KERN_INFO, "pci-resume: pdev=0x%p, slot=%s, host=0x%p",
+		  pdev, pci_name(pdev), host);
 
 	pci_set_power_state(pdev, PCI_D0);
 	pci_enable_wake    (pdev, PCI_D0, 0);
@@ -3316,13 +3339,13 @@ static int nsp32_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	nsp32_dbg(NSP32_DEBUG_REGISTER, "enter");
 
-        ret = pci_enable_device(pdev);
+	ret = pci_enable_device(pdev);
 	if (ret) {
 		nsp32_msg(KERN_ERR, "failed to enable pci device");
 		return ret;
 	}
 
-	data->Pci         = pdev;
+	data->Pci	  = pdev;
 	data->pci_devid   = id;
 	data->IrqNumber   = pdev->irq;
 	data->BaseAddress = pci_resource_start(pdev, 0);
@@ -3351,7 +3374,7 @@ static void nsp32_remove(struct pci_dev *pdev)
 
 	nsp32_dbg(NSP32_DEBUG_REGISTER, "enter");
 
-        scsi_remove_host(host);
+	scsi_remove_host(host);
 
 	nsp32_release(host);
 
@@ -3364,8 +3387,8 @@ static struct pci_driver nsp32_driver = {
 	.probe		= nsp32_probe,
 	.remove		= nsp32_remove,
 #ifdef CONFIG_PM
-	.suspend	= nsp32_suspend, 
-	.resume		= nsp32_resume, 
+	.suspend	= nsp32_suspend,
+	.resume		= nsp32_resume,
 #endif
 };
 
diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c
index ac89002646a3..7c0f931e55e8 100644
--- a/drivers/scsi/pcmcia/nsp_cs.c
+++ b/drivers/scsi/pcmcia/nsp_cs.c
@@ -221,7 +221,7 @@ static int nsp_queuecommand_lck(struct scsi_cmnd *SCpnt,
 
 	data->CurrentSC		= SCpnt;
 
-	SCpnt->SCp.Status	= CHECK_CONDITION;
+	SCpnt->SCp.Status	= SAM_STAT_CHECK_CONDITION;
 	SCpnt->SCp.Message	= 0;
 	SCpnt->SCp.have_data_in = IO_UNKNOWN;
 	SCpnt->SCp.sent_command = 0;
diff --git a/drivers/scsi/ps3rom.c b/drivers/scsi/ps3rom.c
index ccb5771f1cb7..0f4b99d92f12 100644
--- a/drivers/scsi/ps3rom.c
+++ b/drivers/scsi/ps3rom.c
@@ -234,10 +234,8 @@ static int ps3rom_queuecommand_lck(struct scsi_cmnd *cmd,
 	}
 
 	if (res) {
-		memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+		scsi_build_sense(cmd, 0, ILLEGAL_REQUEST, 0, 0);
 		cmd->result = res;
-		cmd->sense_buffer[0] = 0x70;
-		cmd->sense_buffer[2] = ILLEGAL_REQUEST;
 		priv->curr_cmd = NULL;
 		cmd->scsi_done(cmd);
 	}
@@ -319,8 +317,7 @@ static irqreturn_t ps3rom_interrupt(int irq, void *data)
 		goto done;
 	}
 
-	scsi_build_sense_buffer(0, cmd->sense_buffer, sense_key, asc, ascq);
-	cmd->result = SAM_STAT_CHECK_CONDITION;
+	scsi_build_sense(cmd, 0, sense_key, asc, ascq);
 
 done:
 	priv->curr_cmd = NULL;
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 6e8f737a4af3..19fe2c1659d0 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -2694,31 +2694,22 @@ qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
 
 	/* check guard */
 	if (e_guard != a_guard) {
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-		    0x10, 0x1);
-		set_driver_byte(cmd, DRIVER_SENSE);
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
 		set_host_byte(cmd, DID_ABORT);
-		cmd->result |= SAM_STAT_CHECK_CONDITION;
 		return 1;
 	}
 
 	/* check ref tag */
 	if (e_ref_tag != a_ref_tag) {
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-		    0x10, 0x3);
-		set_driver_byte(cmd, DRIVER_SENSE);
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
 		set_host_byte(cmd, DID_ABORT);
-		cmd->result |= SAM_STAT_CHECK_CONDITION;
 		return 1;
 	}
 
 	/* check appl tag */
 	if (e_app_tag != a_app_tag) {
-		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
-		    0x10, 0x2);
-		set_driver_byte(cmd, DRIVER_SENSE);
+		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
 		set_host_byte(cmd, DID_ABORT);
-		cmd->result |= SAM_STAT_CHECK_CONDITION;
 		return 1;
 	}
 
diff --git a/drivers/scsi/qlogicfas408.c b/drivers/scsi/qlogicfas408.c
index 136681ad18a5..3bbe0b5545d9 100644
--- a/drivers/scsi/qlogicfas408.c
+++ b/drivers/scsi/qlogicfas408.c
@@ -4,9 +4,9 @@
    Use at your own risk.  Support Tort Reform so you won't have to read all
    these silly disclaimers.
 
-   Copyright 1994, Tom Zerucha.   
+   Copyright 1994, Tom Zerucha.
    tz@execpc.com
-   
+
    Additional Code, and much appreciated help by
    Michael A. Griffith
    grif@cs.ucr.edu
@@ -22,12 +22,12 @@
 
    Functions as standalone, loadable, and PCMCIA driver, the latter from
    Dave Hinds' PCMCIA package.
-   
+
    Cleaned up 26/10/2002 by Alan Cox <alan@lxorguk.ukuu.org.uk> as part of the 2.5
    SCSI driver cleanup and audit. This driver still needs work on the
    following
-   	-	Non terminating hardware waits
-   	-	Some layering violations with its pcmcia stub
+	-	Non terminating hardware waits
+	-	Some layering violations with its pcmcia stub
 
    Redistributable under terms of the GNU General Public License
 
@@ -92,8 +92,9 @@ static void ql_zap(struct qlogicfas408_priv *priv)
 /*
  *	Do a pseudo-dma tranfer
  */
- 
-static int ql_pdma(struct qlogicfas408_priv *priv, int phase, char *request, int reqlen)
+
+static int ql_pdma(struct qlogicfas408_priv *priv, int phase, char *request,
+		   int reqlen)
 {
 	int j;
 	int qbase = priv->qbase;
@@ -108,7 +109,7 @@ static int ql_pdma(struct qlogicfas408_priv *priv, int phase, char *request, int
 			request += 128;
 		}
 		while (reqlen >= 84 && !(j & 0xc0))	/* 2/3 */
-			if ((j = inb(qbase + 8)) & 4) 
+			if ((j = inb(qbase + 8)) & 4)
 			{
 				insl(qbase + 4, request, 21);
 				reqlen -= 84;
@@ -123,11 +124,11 @@ static int ql_pdma(struct qlogicfas408_priv *priv, int phase, char *request, int
 		/* until both empty and int (or until reclen is 0) */
 		rtrc(7)
 		j = 0;
-		while (reqlen && !((j & 0x10) && (j & 0xc0))) 
+		while (reqlen && !((j & 0x10) && (j & 0xc0)))
 		{
 			/* while bytes to receive and not empty */
 			j &= 0xc0;
-			while (reqlen && !((j = inb(qbase + 8)) & 0x10)) 
+			while (reqlen && !((j = inb(qbase + 8)) & 0x10))
 			{
 				*request++ = inb(qbase + 4);
 				reqlen--;
@@ -161,7 +162,7 @@ static int ql_pdma(struct qlogicfas408_priv *priv, int phase, char *request, int
 		    j = 0;
 		while (reqlen && !((j & 2) && (j & 0xc0))) {
 			/* while bytes to send and not full */
-			while (reqlen && !((j = inb(qbase + 8)) & 2)) 
+			while (reqlen && !((j = inb(qbase + 8)) & 2))
 			{
 				outb(*request++, qbase + 4);
 				reqlen--;
@@ -175,7 +176,7 @@ static int ql_pdma(struct qlogicfas408_priv *priv, int phase, char *request, int
 }
 
 /*
- *	Wait for interrupt flag (polled - not real hardware interrupt) 
+ *	Wait for interrupt flag (polled - not real hardware interrupt)
  */
 
 static int ql_wai(struct qlogicfas408_priv *priv)
@@ -205,14 +206,14 @@ static int ql_wai(struct qlogicfas408_priv *priv)
 }
 
 /*
- *	Initiate scsi command - queueing handler 
+ *	Initiate scsi command - queueing handler
  *	caller must hold host lock
  */
 
 static void ql_icmd(struct scsi_cmnd *cmd)
 {
 	struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd);
-	int 	qbase = priv->qbase;
+	int	qbase = priv->qbase;
 	int	int_type = priv->int_type;
 	unsigned int i;
 
@@ -253,14 +254,13 @@ static void ql_icmd(struct scsi_cmnd *cmd)
 }
 
 /*
- *	Process scsi command - usually after interrupt 
+ *	Process scsi command - usually after interrupt
  */
 
-static unsigned int ql_pcmd(struct scsi_cmnd *cmd)
+static void ql_pcmd(struct scsi_cmnd *cmd)
 {
 	unsigned int i, j;
 	unsigned long k;
-	unsigned int result;	/* ultimate return result */
 	unsigned int status;	/* scsi returned status */
 	unsigned int message;	/* scsi returned message */
 	unsigned int phase;	/* recorded scsi phase */
@@ -274,13 +274,15 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd)
 	j = inb(qbase + 6);
 	i = inb(qbase + 5);
 	if (i == 0x20) {
-		return (DID_NO_CONNECT << 16);
+		set_host_byte(cmd, DID_NO_CONNECT);
+		return;
 	}
 	i |= inb(qbase + 5);	/* the 0x10 bit can be set after the 0x08 */
 	if (i != 0x18) {
 		printk(KERN_ERR "Ql:Bad Interrupt status:%02x\n", i);
 		ql_zap(priv);
-		return (DID_BAD_INTR << 16);
+		set_host_byte(cmd, DID_BAD_INTR);
+		return;
 	}
 	j &= 7;			/* j = inb( qbase + 7 ) >> 5; */
 
@@ -293,9 +295,10 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd)
 		printk(KERN_ERR "Ql:Bad sequence for command %d, int %02X, cmdleft = %d\n",
 		     j, i, inb(qbase + 7) & 0x1f);
 		ql_zap(priv);
-		return (DID_ERROR << 16);
+		set_host_byte(cmd, DID_ERROR);
+		return;
 	}
-	result = DID_OK;
+
 	if (inb(qbase + 7) & 0x1f)	/* if some bytes in fifo */
 		outb(1, qbase + 3);	/* clear fifo */
 	/* note that request_bufflen is the total xfer size when sg is used */
@@ -314,28 +317,31 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd)
 		scsi_for_each_sg(cmd, sg, scsi_sg_count(cmd), i) {
 			if (priv->qabort) {
 				REG0;
-				return ((priv->qabort == 1 ?
-					 DID_ABORT : DID_RESET) << 16);
+				set_host_byte(cmd,
+					      priv->qabort == 1 ?
+					      DID_ABORT : DID_RESET);
 			}
 			buf = sg_virt(sg);
 			if (ql_pdma(priv, phase, buf, sg->length))
 				break;
 		}
 		REG0;
-		rtrc(2)
+		rtrc(2);
 		/*
 		 *	Wait for irq (split into second state of irq handler
-		 *	if this can take time) 
+		 *	if this can take time)
 		 */
-		if ((k = ql_wai(priv)))
-			return (k << 16);
+		if ((k = ql_wai(priv))) {
+			set_host_byte(cmd, k);
+			return;
+		}
 		k = inb(qbase + 5);	/* should be 0x10, bus service */
 	}
 
 	/*
-	 *	Enter Status (and Message In) Phase 
+	 *	Enter Status (and Message In) Phase
 	 */
-	 
+
 	k = jiffies + WATCHDOG;
 
 	while (time_before(jiffies, k) && !priv->qabort &&
@@ -344,57 +350,72 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd)
 
 	if (time_after_eq(jiffies, k)) {
 		ql_zap(priv);
-		return (DID_TIME_OUT << 16);
+		set_host_byte(cmd, DID_TIME_OUT);
+		return;
 	}
 
 	/* FIXME: timeout ?? */
 	while (inb(qbase + 5))
 		cpu_relax();	/* clear pending ints */
 
-	if (priv->qabort)
-		return ((priv->qabort == 1 ? DID_ABORT : DID_RESET) << 16);
+	if (priv->qabort) {
+		set_host_byte(cmd,
+			      priv->qabort == 1 ? DID_ABORT : DID_RESET);
+		return;
+	}
 
 	outb(0x11, qbase + 3);	/* get status and message */
-	if ((k = ql_wai(priv)))
-		return (k << 16);
+	if ((k = ql_wai(priv))) {
+		set_host_byte(cmd, k);
+		return;
+	}
 	i = inb(qbase + 5);	/* get chip irq stat */
 	j = inb(qbase + 7) & 0x1f;	/* and bytes rec'd */
 	status = inb(qbase + 2);
 	message = inb(qbase + 2);
 
 	/*
-	 *	Should get function complete int if Status and message, else 
-	 *	bus serv if only status 
+	 *	Should get function complete int if Status and message, else
+	 *	bus serv if only status
 	 */
 	if (!((i == 8 && j == 2) || (i == 0x10 && j == 1))) {
 		printk(KERN_ERR "Ql:Error during status phase, int=%02X, %d bytes recd\n", i, j);
-		result = DID_ERROR;
+		set_host_byte(cmd, DID_ERROR);
 	}
 	outb(0x12, qbase + 3);	/* done, disconnect */
-	rtrc(1)
-	if ((k = ql_wai(priv)))
-		return (k << 16);
+	rtrc(1);
+	if ((k = ql_wai(priv))) {
+		set_host_byte(cmd, k);
+		return;
+	}
 
 	/*
-	 *	Should get bus service interrupt and disconnect interrupt 
+	 *	Should get bus service interrupt and disconnect interrupt
 	 */
-	 
+
 	i = inb(qbase + 5);	/* should be bus service */
 	while (!priv->qabort && ((i & 0x20) != 0x20)) {
 		barrier();
 		cpu_relax();
 		i |= inb(qbase + 5);
 	}
-	rtrc(0)
+	rtrc(0);
 
-	if (priv->qabort)
-		return ((priv->qabort == 1 ? DID_ABORT : DID_RESET) << 16);
-		
-	return (result << 16) | (message << 8) | (status & STATUS_MASK);
+	if (priv->qabort) {
+		set_host_byte(cmd,
+			      priv->qabort == 1 ? DID_ABORT : DID_RESET);
+		return;
+	}
+
+	set_host_byte(cmd, DID_OK);
+	if (message != COMMAND_COMPLETE)
+		scsi_msg_to_host_byte(cmd, message);
+	set_status_byte(cmd, status);
+	return;
 }
 
 /*
- *	Interrupt handler 
+ *	Interrupt handler
  */
 
 static void ql_ihandl(void *dev_id)
@@ -415,11 +436,11 @@ static void ql_ihandl(void *dev_id)
 		return;
 	}
 	icmd = priv->qlcmd;
-	icmd->result = ql_pcmd(icmd);
+	ql_pcmd(icmd);
 	priv->qlcmd = NULL;
 	/*
-	 *	If result is CHECK CONDITION done calls qcommand to request 
-	 *	sense 
+	 *	If result is CHECK CONDITION done calls qcommand to request
+	 *	sense
 	 */
 	(icmd->scsi_done) (icmd);
 }
@@ -443,8 +464,11 @@ static int qlogicfas408_queuecommand_lck(struct scsi_cmnd *cmd,
 			      void (*done) (struct scsi_cmnd *))
 {
 	struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd);
+
+	set_host_byte(cmd, DID_OK);
+	set_status_byte(cmd, SAM_STAT_GOOD);
 	if (scmd_id(cmd) == priv->qinitid) {
-		cmd->result = DID_BAD_TARGET << 16;
+		set_host_byte(cmd, DID_BAD_TARGET);
 		done(cmd);
 		return 0;
 	}
@@ -461,8 +485,8 @@ static int qlogicfas408_queuecommand_lck(struct scsi_cmnd *cmd,
 
 DEF_SCSI_QCMD(qlogicfas408_queuecommand)
 
-/* 
- *	Return bios parameters 
+/*
+ *	Return bios parameters
  */
 
 int qlogicfas408_biosparam(struct scsi_device *disk, struct block_device *dev,
@@ -487,7 +511,7 @@ int qlogicfas408_biosparam(struct scsi_device *disk, struct block_device *dev,
 /*
  *	Abort a command in progress
  */
- 
+
 int qlogicfas408_abort(struct scsi_cmnd *cmd)
 {
 	struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd);
@@ -566,9 +590,9 @@ void qlogicfas408_setup(int qbase, int id, int int_type)
 
 int qlogicfas408_detect(int qbase, int int_type)
 {
-        REG1;
+	REG1;
 	return (((inb(qbase + 0xe) ^ inb(qbase + 0xe)) == 7) &&
-	       ((inb(qbase + 0xe) ^ inb(qbase + 0xe)) == 7));		
+		((inb(qbase + 0xe) ^ inb(qbase + 0xe)) == 7));
 }
 
 /*
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index e9e2f0e15ac8..d26025cf5de3 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -144,7 +144,7 @@ void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
 		    (level > 1)) {
 			scsi_print_result(cmd, "Done", disposition);
 			scsi_print_command(cmd);
-			if (status_byte(cmd->result) == CHECK_CONDITION)
+			if (scsi_status_is_check_condition(cmd->result))
 				scsi_print_sense(cmd);
 			if (level > 3)
 				scmd_printk(KERN_INFO, cmd,
@@ -185,13 +185,6 @@ void scsi_finish_command(struct scsi_cmnd *cmd)
 	if (atomic_read(&sdev->device_blocked))
 		atomic_set(&sdev->device_blocked, 0);
 
-	/*
-	 * If we have valid sense information, then some kind of recovery
-	 * must have taken place.  Make a note of this.
-	 */
-	if (SCSI_SENSE_VALID(cmd))
-		cmd->result |= (DRIVER_SENSE << 24);
-
 	SCSI_LOG_MLCOMPLETE(4, sdev_printk(KERN_INFO, sdev,
 				"Notifying upper driver of completion "
 				"(result %x)\n", cmd->result));
@@ -508,6 +501,8 @@ int scsi_report_opcode(struct scsi_device *sdev, unsigned char *buffer,
 	result = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buffer, len,
 				  &sshdr, 30 * HZ, 3, NULL);
 
+	if (result < 0)
+		return result;
 	if (result && scsi_sense_valid(&sshdr) &&
 	    sshdr.sense_key == ILLEGAL_REQUEST &&
 	    (sshdr.asc == 0x20 || sshdr.asc == 0x24) && sshdr.ascq == 0x00)
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 6e2ad003c179..5b3a20a140f9 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -851,10 +851,10 @@ static struct device_driver sdebug_driverfs_driver = {
 };
 
 static const int check_condition_result =
-		(DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
+	SAM_STAT_CHECK_CONDITION;
 
 static const int illegal_condition_result =
-	(DRIVER_SENSE << 24) | (DID_ABORT << 16) | SAM_STAT_CHECK_CONDITION;
+	(DID_ABORT << 16) | SAM_STAT_CHECK_CONDITION;
 
 static const int device_qfull_result =
 	(DID_OK << 16) | SAM_STAT_TASK_SET_FULL;
@@ -931,7 +931,7 @@ static void mk_sense_invalid_fld(struct scsi_cmnd *scp,
 	}
 	asc = c_d ? INVALID_FIELD_IN_CDB : INVALID_FIELD_IN_PARAM_LIST;
 	memset(sbuff, 0, SCSI_SENSE_BUFFERSIZE);
-	scsi_build_sense_buffer(sdebug_dsense, sbuff, ILLEGAL_REQUEST, asc, 0);
+	scsi_build_sense(scp, sdebug_dsense, ILLEGAL_REQUEST, asc, 0);
 	memset(sks, 0, sizeof(sks));
 	sks[0] = 0x80;
 	if (c_d)
@@ -957,17 +957,14 @@ static void mk_sense_invalid_fld(struct scsi_cmnd *scp,
 
 static void mk_sense_buffer(struct scsi_cmnd *scp, int key, int asc, int asq)
 {
-	unsigned char *sbuff;
-
-	sbuff = scp->sense_buffer;
-	if (!sbuff) {
+	if (!scp->sense_buffer) {
 		sdev_printk(KERN_ERR, scp->device,
 			    "%s: sense_buffer is NULL\n", __func__);
 		return;
 	}
-	memset(sbuff, 0, SCSI_SENSE_BUFFERSIZE);
+	memset(scp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 
-	scsi_build_sense_buffer(sdebug_dsense, sbuff, key, asc, asq);
+	scsi_build_sense(scp, sdebug_dsense, key, asc, asq);
 
 	if (sdebug_verbose)
 		sdev_printk(KERN_INFO, scp->device,
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index d8fafe77dbbe..c6cd5a8e5c85 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -742,41 +742,35 @@ static enum scsi_disposition scsi_eh_completed_normally(struct scsi_cmnd *scmd)
 		return FAILED;
 
 	/*
-	 * next, check the message byte.
-	 */
-	if (msg_byte(scmd->result) != COMMAND_COMPLETE)
-		return FAILED;
-
-	/*
 	 * now, check the status byte to see if this indicates
 	 * anything special.
 	 */
-	switch (status_byte(scmd->result)) {
-	case GOOD:
+	switch (get_status_byte(scmd)) {
+	case SAM_STAT_GOOD:
 		scsi_handle_queue_ramp_up(scmd->device);
 		fallthrough;
-	case COMMAND_TERMINATED:
+	case SAM_STAT_COMMAND_TERMINATED:
 		return SUCCESS;
-	case CHECK_CONDITION:
+	case SAM_STAT_CHECK_CONDITION:
 		return scsi_check_sense(scmd);
-	case CONDITION_GOOD:
-	case INTERMEDIATE_GOOD:
-	case INTERMEDIATE_C_GOOD:
+	case SAM_STAT_CONDITION_MET:
+	case SAM_STAT_INTERMEDIATE:
+	case SAM_STAT_INTERMEDIATE_CONDITION_MET:
 		/*
 		 * who knows?  FIXME(eric)
 		 */
 		return SUCCESS;
-	case RESERVATION_CONFLICT:
+	case SAM_STAT_RESERVATION_CONFLICT:
 		if (scmd->cmnd[0] == TEST_UNIT_READY)
 			/* it is a success, we probed the device and
 			 * found it */
 			return SUCCESS;
 		/* otherwise, we failed to send the command */
 		return FAILED;
-	case QUEUE_FULL:
+	case SAM_STAT_TASK_SET_FULL:
 		scsi_handle_queue_full(scmd->device);
 		fallthrough;
-	case BUSY:
+	case SAM_STAT_BUSY:
 		return NEEDS_RETRY;
 	default:
 		return FAILED;
@@ -1258,7 +1252,7 @@ int scsi_eh_get_sense(struct list_head *work_q,
 					     current->comm));
 			break;
 		}
-		if (status_byte(scmd->result) != CHECK_CONDITION)
+		if (!scsi_status_is_check_condition(scmd->result))
 			/*
 			 * don't request sense if there's no check condition
 			 * status because the error we're processing isn't one
@@ -1766,15 +1760,14 @@ int scsi_noretry_cmd(struct scsi_cmnd *scmd)
 	case DID_PARITY:
 		return (scmd->request->cmd_flags & REQ_FAILFAST_DEV);
 	case DID_ERROR:
-		if (msg_byte(scmd->result) == COMMAND_COMPLETE &&
-		    status_byte(scmd->result) == RESERVATION_CONFLICT)
+		if (get_status_byte(scmd) == SAM_STAT_RESERVATION_CONFLICT)
 			return 0;
 		fallthrough;
 	case DID_SOFT_ERROR:
 		return (scmd->request->cmd_flags & REQ_FAILFAST_DRIVER);
 	}
 
-	if (status_byte(scmd->result) != CHECK_CONDITION)
+	if (!scsi_status_is_check_condition(scmd->result))
 		return 0;
 
 check_type:
@@ -1883,8 +1876,7 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd)
 		 */
 		return SUCCESS;
 	case DID_ERROR:
-		if (msg_byte(scmd->result) == COMMAND_COMPLETE &&
-		    status_byte(scmd->result) == RESERVATION_CONFLICT)
+		if (get_status_byte(scmd) == SAM_STAT_RESERVATION_CONFLICT)
 			/*
 			 * execute reservation conflict processing code
 			 * lower down
@@ -1913,23 +1905,17 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd)
 	}
 
 	/*
-	 * next, check the message byte.
-	 */
-	if (msg_byte(scmd->result) != COMMAND_COMPLETE)
-		return FAILED;
-
-	/*
 	 * check the status byte to see if this indicates anything special.
 	 */
-	switch (status_byte(scmd->result)) {
-	case QUEUE_FULL:
+	switch (get_status_byte(scmd)) {
+	case SAM_STAT_TASK_SET_FULL:
 		scsi_handle_queue_full(scmd->device);
 		/*
 		 * the case of trying to send too many commands to a
 		 * tagged queueing device.
 		 */
 		fallthrough;
-	case BUSY:
+	case SAM_STAT_BUSY:
 		/*
 		 * device can't talk to us at the moment.  Should only
 		 * occur (SAM-3) when the task queue is empty, so will cause
@@ -1937,16 +1923,16 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd)
 		 * device.
 		 */
 		return ADD_TO_MLQUEUE;
-	case GOOD:
+	case SAM_STAT_GOOD:
 		if (scmd->cmnd[0] == REPORT_LUNS)
 			scmd->device->sdev_target->expecting_lun_change = 0;
 		scsi_handle_queue_ramp_up(scmd->device);
 		fallthrough;
-	case COMMAND_TERMINATED:
+	case SAM_STAT_COMMAND_TERMINATED:
 		return SUCCESS;
-	case TASK_ABORTED:
+	case SAM_STAT_TASK_ABORTED:
 		goto maybe_retry;
-	case CHECK_CONDITION:
+	case SAM_STAT_CHECK_CONDITION:
 		rtn = scsi_check_sense(scmd);
 		if (rtn == NEEDS_RETRY)
 			goto maybe_retry;
@@ -1955,16 +1941,16 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd)
 		 * to collect the sense and redo the decide
 		 * disposition */
 		return rtn;
-	case CONDITION_GOOD:
-	case INTERMEDIATE_GOOD:
-	case INTERMEDIATE_C_GOOD:
-	case ACA_ACTIVE:
+	case SAM_STAT_CONDITION_MET:
+	case SAM_STAT_INTERMEDIATE:
+	case SAM_STAT_INTERMEDIATE_CONDITION_MET:
+	case SAM_STAT_ACA_ACTIVE:
 		/*
 		 * who knows?  FIXME(eric)
 		 */
 		return SUCCESS;
 
-	case RESERVATION_CONFLICT:
+	case SAM_STAT_RESERVATION_CONFLICT:
 		sdev_printk(KERN_INFO, scmd->device,
 			    "reservation conflict\n");
 		set_host_byte(scmd, DID_NEXUS_FAILURE);
@@ -2137,10 +2123,10 @@ void scsi_eh_flush_done_q(struct list_head *done_q)
 			/*
 			 * If just we got sense for the device (called
 			 * scsi_eh_get_sense), scmd->result is already
-			 * set, do not set DRIVER_TIMEOUT.
+			 * set, do not set DID_TIME_OUT.
 			 */
 			if (!scmd->result)
-				scmd->result |= (DRIVER_TIMEOUT << 24);
+				scmd->result |= (DID_TIME_OUT << 16);
 			SCSI_LOG_ERROR_RECOVERY(3,
 				scmd_printk(KERN_INFO, scmd,
 					     "%s: flush finish cmd\n",
diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c
index 14872c9dc78c..0d13610cd6bf 100644
--- a/drivers/scsi/scsi_ioctl.c
+++ b/drivers/scsi/scsi_ioctl.c
@@ -101,8 +101,9 @@ static int ioctl_internal_command(struct scsi_device *sdev, char *cmd,
 	SCSI_LOG_IOCTL(2, sdev_printk(KERN_INFO, sdev,
 				      "Ioctl returned  0x%x\n", result));
 
-	if (driver_byte(result) == DRIVER_SENSE &&
-	    scsi_sense_valid(&sshdr)) {
+	if (result < 0)
+		goto out;
+	if (scsi_sense_valid(&sshdr)) {
 		switch (sshdr.sense_key) {
 		case ILLEGAL_REQUEST:
 			if (cmd[0] == ALLOW_MEDIUM_REMOVAL)
@@ -133,7 +134,7 @@ static int ioctl_internal_command(struct scsi_device *sdev, char *cmd,
 			break;
 		}
 	}
-
+out:
 	SCSI_LOG_IOCTL(2, sdev_printk(KERN_INFO, sdev,
 				      "IOCTL Releasing command\n"));
 	return result;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 532304d42f00..6b994baf87c2 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -211,20 +211,23 @@ int __scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
 {
 	struct request *req;
 	struct scsi_request *rq;
-	int ret = DRIVER_ERROR << 24;
+	int ret;
 
 	req = blk_get_request(sdev->request_queue,
 			data_direction == DMA_TO_DEVICE ?
 			REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN,
 			rq_flags & RQF_PM ? BLK_MQ_REQ_PM : 0);
 	if (IS_ERR(req))
-		return ret;
-	rq = scsi_req(req);
+		return PTR_ERR(req);
 
-	if (bufflen &&	blk_rq_map_kern(sdev->request_queue, req,
-					buffer, bufflen, GFP_NOIO))
-		goto out;
+	rq = scsi_req(req);
 
+	if (bufflen) {
+		ret = blk_rq_map_kern(sdev->request_queue, req,
+				      buffer, bufflen, GFP_NOIO);
+		if (ret)
+			goto out;
+	}
 	rq->cmd_len = COMMAND_SIZE(cmd[0]);
 	memcpy(rq->cmd, cmd, rq->cmd_len);
 	rq->retries = retries;
@@ -588,12 +591,7 @@ static blk_status_t scsi_result_to_blk_status(struct scsi_cmnd *cmd, int result)
 {
 	switch (host_byte(result)) {
 	case DID_OK:
-		/*
-		 * Also check the other bytes than the status byte in result
-		 * to handle the case when a SCSI LLD sets result to
-		 * DRIVER_SENSE << 24 without setting SAM_STAT_CHECK_CONDITION.
-		 */
-		if (scsi_status_is_good(result) && (result & ~0xff) == 0)
+		if (scsi_status_is_good(result))
 			return BLK_STS_OK;
 		return BLK_STS_IOERR;
 	case DID_TRANSPORT_FAILFAST:
@@ -787,7 +785,7 @@ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result)
 			 */
 			if (!level && __ratelimit(&_rs)) {
 				scsi_print_result(cmd, NULL, FAILED);
-				if (driver_byte(result) == DRIVER_SENSE)
+				if (sense_valid)
 					scsi_print_sense(cmd);
 				scsi_print_command(cmd);
 			}
@@ -875,7 +873,7 @@ static int scsi_io_completion_nz_result(struct scsi_cmnd *cmd, int result,
 	 * if it can't fit). Treat SAM_STAT_CONDITION_MET and the related
 	 * intermediate statuses (both obsolete in SAM-4) as good.
 	 */
-	if (status_byte(result) && scsi_status_is_good(result)) {
+	if ((result & 0xff) && scsi_status_is_good(result)) {
 		result = 0;
 		*blk_statp = BLK_STS_OK;
 	}
@@ -2093,9 +2091,7 @@ EXPORT_SYMBOL_GPL(scsi_mode_select);
  *	@sshdr: place to put sense data (or NULL if no sense to be collected).
  *		must be SCSI_SENSE_BUFFERSIZE big.
  *
- *	Returns zero if unsuccessful, or the header offset (either 4
- *	or 8 depending on whether a six or ten byte command was
- *	issued) if successful.
+ *	Returns zero if successful, or a negative error number on failure
  */
 int
 scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage,
@@ -2142,58 +2138,60 @@ scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage,
 
 	result = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buffer, len,
 				  sshdr, timeout, retries, NULL);
+	if (result < 0)
+		return result;
 
 	/* This code looks awful: what it's doing is making sure an
 	 * ILLEGAL REQUEST sense return identifies the actual command
 	 * byte as the problem.  MODE_SENSE commands can return
 	 * ILLEGAL REQUEST if the code page isn't supported */
 
-	if (use_10_for_ms && !scsi_status_is_good(result) &&
-	    driver_byte(result) == DRIVER_SENSE) {
+	if (!scsi_status_is_good(result)) {
 		if (scsi_sense_valid(sshdr)) {
 			if ((sshdr->sense_key == ILLEGAL_REQUEST) &&
 			    (sshdr->asc == 0x20) && (sshdr->ascq == 0)) {
 				/*
 				 * Invalid command operation code
 				 */
-				sdev->use_10_for_ms = 0;
+				if (use_10_for_ms) {
+					sdev->use_10_for_ms = 0;
+					goto retry;
+				}
+			}
+			if (scsi_status_is_check_condition(result) &&
+			    sshdr->sense_key == UNIT_ATTENTION &&
+			    retry_count) {
+				retry_count--;
 				goto retry;
 			}
 		}
+		return -EIO;
+	}
+	if (unlikely(buffer[0] == 0x86 && buffer[1] == 0x0b &&
+		     (modepage == 6 || modepage == 8))) {
+		/* Initio breakage? */
+		header_length = 0;
+		data->length = 13;
+		data->medium_type = 0;
+		data->device_specific = 0;
+		data->longlba = 0;
+		data->block_descriptor_length = 0;
+	} else if (use_10_for_ms) {
+		data->length = buffer[0]*256 + buffer[1] + 2;
+		data->medium_type = buffer[2];
+		data->device_specific = buffer[3];
+		data->longlba = buffer[4] & 0x01;
+		data->block_descriptor_length = buffer[6]*256
+			+ buffer[7];
+	} else {
+		data->length = buffer[0] + 1;
+		data->medium_type = buffer[1];
+		data->device_specific = buffer[2];
+		data->block_descriptor_length = buffer[3];
 	}
+	data->header_length = header_length;
 
-	if (scsi_status_is_good(result)) {
-		if (unlikely(buffer[0] == 0x86 && buffer[1] == 0x0b &&
-			     (modepage == 6 || modepage == 8))) {
-			/* Initio breakage? */
-			header_length = 0;
-			data->length = 13;
-			data->medium_type = 0;
-			data->device_specific = 0;
-			data->longlba = 0;
-			data->block_descriptor_length = 0;
-		} else if (use_10_for_ms) {
-			data->length = buffer[0]*256 + buffer[1] + 2;
-			data->medium_type = buffer[2];
-			data->device_specific = buffer[3];
-			data->longlba = buffer[4] & 0x01;
-			data->block_descriptor_length = buffer[6]*256
-				+ buffer[7];
-		} else {
-			data->length = buffer[0] + 1;
-			data->medium_type = buffer[1];
-			data->device_specific = buffer[2];
-			data->block_descriptor_length = buffer[3];
-		}
-		data->header_length = header_length;
-	} else if ((status_byte(result) == CHECK_CONDITION) &&
-		   scsi_sense_valid(sshdr) &&
-		   sshdr->sense_key == UNIT_ATTENTION && retry_count) {
-		retry_count--;
-		goto retry;
-	}
-
-	return result;
+	return 0;
 }
 EXPORT_SYMBOL(scsi_mode_sense);
 
@@ -3218,3 +3216,20 @@ int scsi_vpd_tpg_id(struct scsi_device *sdev, int *rel_id)
 	return group_id;
 }
 EXPORT_SYMBOL(scsi_vpd_tpg_id);
+
+/**
+ * scsi_build_sense - build sense data for a command
+ * @scmd:	scsi command for which the sense should be formatted
+ * @desc:	Sense format (non-zero == descriptor format,
+ *              0 == fixed format)
+ * @key:	Sense key
+ * @asc:	Additional sense code
+ * @ascq:	Additional sense code qualifier
+ *
+ **/
+void scsi_build_sense(struct scsi_cmnd *scmd, int desc, u8 key, u8 asc, u8 ascq)
+{
+	scsi_build_sense_buffer(desc, scmd->sense_buffer, key, asc, ascq);
+	scmd->result = SAM_STAT_CHECK_CONDITION;
+}
+EXPORT_SYMBOL_GPL(scsi_build_sense);
diff --git a/drivers/scsi/scsi_logging.c b/drivers/scsi/scsi_logging.c
index 8ea44c6595ef..2317717935e9 100644
--- a/drivers/scsi/scsi_logging.c
+++ b/drivers/scsi/scsi_logging.c
@@ -385,7 +385,6 @@ void scsi_print_result(const struct scsi_cmnd *cmd, const char *msg,
 	size_t off, logbuf_len;
 	const char *mlret_string = scsi_mlreturn_string(disposition);
 	const char *hb_string = scsi_hostbyte_string(cmd->result);
-	const char *db_string = scsi_driverbyte_string(cmd->result);
 	unsigned long cmd_age = (jiffies - cmd->jiffies_at_alloc) / HZ;
 
 	logbuf = scsi_log_reserve_buffer(&logbuf_len);
@@ -426,13 +425,8 @@ void scsi_print_result(const struct scsi_cmnd *cmd, const char *msg,
 	if (WARN_ON(off >= logbuf_len))
 		goto out_printk;
 
-	if (db_string)
-		off += scnprintf(logbuf + off, logbuf_len - off,
-				 "driverbyte=%s ", db_string);
-	else
-		off += scnprintf(logbuf + off, logbuf_len - off,
-				 "driverbyte=0x%02x ",
-				 driver_byte(cmd->result));
+	off += scnprintf(logbuf + off, logbuf_len - off,
+			 "driverbyte=DRIVER_OK ");
 
 	off += scnprintf(logbuf + off, logbuf_len - off,
 			 "cmd_age=%lus", cmd_age);
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 12f54571b83e..5ce45ef9808f 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -616,14 +616,14 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result,
 				"scsi scan: INQUIRY %s with code 0x%x\n",
 				result ? "failed" : "successful", result));
 
-		if (result) {
+		if (result > 0) {
 			/*
 			 * not-ready to ready transition [asc/ascq=0x28/0x0]
 			 * or power-on, reset [asc/ascq=0x29/0x0], continue.
 			 * INQUIRY should not yield UNIT_ATTENTION
 			 * but many buggy devices do so anyway. 
 			 */
-			if (driver_byte(result) == DRIVER_SENSE &&
+			if (scsi_status_is_check_condition(result) &&
 			    scsi_sense_valid(&sshdr)) {
 				if ((sshdr.sense_key == UNIT_ATTENTION) &&
 				    ((sshdr.asc == 0x28) ||
@@ -631,7 +631,7 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result,
 				    (sshdr.ascq == 0))
 					continue;
 			}
-		} else {
+		} else if (result == 0) {
 			/*
 			 * if nothing was transferred, we try
 			 * again. It's a workaround for some USB
diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index c9abed8429c9..4a96fb05731d 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -1229,16 +1229,15 @@ int sas_read_port_mode_page(struct scsi_device *sdev)
 	char *buffer = kzalloc(BUF_SIZE, GFP_KERNEL), *msdata;
 	struct sas_end_device *rdev = sas_sdev_to_rdev(sdev);
 	struct scsi_mode_data mode_data;
-	int res, error;
+	int error;
 
 	if (!buffer)
 		return -ENOMEM;
 
-	res = scsi_mode_sense(sdev, 1, 0x19, buffer, BUF_SIZE, 30*HZ, 3,
-			      &mode_data, NULL);
+	error = scsi_mode_sense(sdev, 1, 0x19, buffer, BUF_SIZE, 30*HZ, 3,
+				&mode_data, NULL);
 
-	error = -EINVAL;
-	if (!scsi_status_is_good(res))
+	if (error)
 		goto out;
 
 	msdata = buffer +  mode_data.header_length +
diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index c37dd15d16d2..5af7a10e9514 100644
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -127,7 +127,7 @@ static int spi_execute(struct scsi_device *sdev, const void *cmd,
 				      REQ_FAILFAST_TRANSPORT |
 				      REQ_FAILFAST_DRIVER,
 				      RQF_PM, NULL);
-		if (driver_byte(result) != DRIVER_SENSE ||
+		if (result < 0 || !scsi_sense_valid(sshdr) ||
 		    sshdr->sense_key != UNIT_ATTENTION)
 			break;
 	}
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index cb3c37d1e009..20739072f21a 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1658,7 +1658,7 @@ static unsigned int sd_check_events(struct gendisk *disk, unsigned int clearing)
 					      &sshdr);
 
 		/* failed to execute TUR, assume media not present */
-		if (host_byte(retval)) {
+		if (retval < 0 || host_byte(retval)) {
 			set_media_not_present(sdkp);
 			goto out;
 		}
@@ -1719,16 +1719,20 @@ static int sd_sync_cache(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr)
 	if (res) {
 		sd_print_result(sdkp, "Synchronize Cache(10) failed", res);
 
-		if (driver_byte(res) == DRIVER_SENSE)
+		if (res < 0)
+			return res;
+
+		if (scsi_status_is_check_condition(res) &&
+		    scsi_sense_valid(sshdr)) {
 			sd_print_sense_hdr(sdkp, sshdr);
 
-		/* we need to evaluate the error return  */
-		if (scsi_sense_valid(sshdr) &&
-			(sshdr->asc == 0x3a ||	/* medium not present */
-			 sshdr->asc == 0x20 ||	/* invalid command */
-			 (sshdr->asc == 0x74 && sshdr->ascq == 0x71)))	/* drive is password locked */
+			/* we need to evaluate the error return  */
+			if (sshdr->asc == 0x3a ||	/* medium not present */
+			    sshdr->asc == 0x20 ||	/* invalid command */
+			    (sshdr->asc == 0x74 && sshdr->ascq == 0x71))	/* drive is password locked */
 				/* this is no error here */
 				return 0;
+		}
 
 		switch (host_byte(res)) {
 		/* ignore errors due to racing a disconnection */
@@ -1825,7 +1829,7 @@ static int sd_pr_command(struct block_device *bdev, u8 sa,
 	result = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, &data, sizeof(data),
 			&sshdr, SD_TIMEOUT, sdkp->max_retries, NULL);
 
-	if (driver_byte(result) == DRIVER_SENSE &&
+	if (scsi_status_is_check_condition(result) &&
 	    scsi_sense_valid(&sshdr)) {
 		sdev_printk(KERN_INFO, sdev, "PR command failed: %d\n", result);
 		scsi_print_sense_hdr(sdev, NULL, &sshdr);
@@ -2069,7 +2073,7 @@ static int sd_done(struct scsi_cmnd *SCpnt)
 	}
 	sdkp->medium_access_timed_out = 0;
 
-	if (driver_byte(result) != DRIVER_SENSE &&
+	if (!scsi_status_is_check_condition(result) &&
 	    (!sense_valid || sense_deferred))
 		goto out;
 
@@ -2172,12 +2176,12 @@ sd_spinup_disk(struct scsi_disk *sdkp)
 			if (the_result)
 				sense_valid = scsi_sense_valid(&sshdr);
 			retries++;
-		} while (retries < 3 && 
+		} while (retries < 3 &&
 			 (!scsi_status_is_good(the_result) ||
-			  ((driver_byte(the_result) == DRIVER_SENSE) &&
+			  (scsi_status_is_check_condition(the_result) &&
 			  sense_valid && sshdr.sense_key == UNIT_ATTENTION)));
 
-		if (driver_byte(the_result) != DRIVER_SENSE) {
+		if (!scsi_status_is_check_condition(the_result)) {
 			/* no sense, TUR either succeeded or failed
 			 * with a status error */
 			if(!spintime && !scsi_status_is_good(the_result)) {
@@ -2305,7 +2309,7 @@ static void read_capacity_error(struct scsi_disk *sdkp, struct scsi_device *sdp,
 			struct scsi_sense_hdr *sshdr, int sense_valid,
 			int the_result)
 {
-	if (driver_byte(the_result) == DRIVER_SENSE)
+	if (sense_valid)
 		sd_print_sense_hdr(sdkp, sshdr);
 	else
 		sd_printk(KERN_NOTICE, sdkp, "Sense not available.\n");
@@ -2362,7 +2366,7 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
 		if (media_not_present(sdkp, &sshdr))
 			return -ENODEV;
 
-		if (the_result) {
+		if (the_result > 0) {
 			sense_valid = scsi_sense_valid(&sshdr);
 			if (sense_valid &&
 			    sshdr.sense_key == ILLEGAL_REQUEST &&
@@ -2447,7 +2451,7 @@ static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp,
 		if (media_not_present(sdkp, &sshdr))
 			return -ENODEV;
 
-		if (the_result) {
+		if (the_result > 0) {
 			sense_valid = scsi_sense_valid(&sshdr);
 			if (sense_valid &&
 			    sshdr.sense_key == UNIT_ATTENTION &&
@@ -2670,18 +2674,18 @@ sd_read_write_protect_flag(struct scsi_disk *sdkp, unsigned char *buffer)
 		 * 5: Illegal Request, Sense Code 24: Invalid field in
 		 * CDB.
 		 */
-		if (!scsi_status_is_good(res))
+		if (res < 0)
 			res = sd_do_mode_sense(sdkp, 0, 0, buffer, 4, &data, NULL);
 
 		/*
 		 * Third attempt: ask 255 bytes, as we did earlier.
 		 */
-		if (!scsi_status_is_good(res))
+		if (res < 0)
 			res = sd_do_mode_sense(sdkp, 0, 0x3F, buffer, 255,
 					       &data, NULL);
 	}
 
-	if (!scsi_status_is_good(res)) {
+	if (res < 0) {
 		sd_first_printk(KERN_WARNING, sdkp,
 			  "Test WP failed, assume Write Enabled\n");
 	} else {
@@ -2742,7 +2746,7 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
 	res = sd_do_mode_sense(sdkp, dbd, modepage, buffer, first_len,
 			&data, &sshdr);
 
-	if (!scsi_status_is_good(res))
+	if (res < 0)
 		goto bad_sense;
 
 	if (!data.header_length) {
@@ -2774,7 +2778,7 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
 		res = sd_do_mode_sense(sdkp, dbd, modepage, buffer, len,
 				&data, &sshdr);
 
-	if (scsi_status_is_good(res)) {
+	if (!res) {
 		int offset = data.header_length + data.block_descriptor_length;
 
 		while (offset < len) {
@@ -2892,7 +2896,7 @@ static void sd_read_app_tag_own(struct scsi_disk *sdkp, unsigned char *buffer)
 	res = scsi_mode_sense(sdp, 1, 0x0a, buffer, 36, SD_TIMEOUT,
 			      sdkp->max_retries, &data, &sshdr);
 
-	if (!scsi_status_is_good(res) || !data.header_length ||
+	if (res < 0 || !data.header_length ||
 	    data.length < 6) {
 		sd_first_printk(KERN_WARNING, sdkp,
 			  "getting Control mode page failed, assume no ATO\n");
@@ -3591,12 +3595,12 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start)
 			SD_TIMEOUT, sdkp->max_retries, 0, RQF_PM, NULL);
 	if (res) {
 		sd_print_result(sdkp, "Start/Stop Unit failed", res);
-		if (driver_byte(res) == DRIVER_SENSE)
+		if (res > 0 && scsi_sense_valid(&sshdr)) {
 			sd_print_sense_hdr(sdkp, &sshdr);
-		if (scsi_sense_valid(&sshdr) &&
 			/* 0x3a is medium not present */
-			sshdr.asc == 0x3a)
-			res = 0;
+			if (sshdr.asc == 0x3a)
+				res = 0;
+		}
 	}
 
 	/* SCSI error codes must not go to the generic layer */
@@ -3806,15 +3810,14 @@ void sd_print_sense_hdr(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr)
 void sd_print_result(const struct scsi_disk *sdkp, const char *msg, int result)
 {
 	const char *hb_string = scsi_hostbyte_string(result);
-	const char *db_string = scsi_driverbyte_string(result);
 
-	if (hb_string || db_string)
+	if (hb_string)
 		sd_printk(KERN_INFO, sdkp,
 			  "%s: Result: hostbyte=%s driverbyte=%s\n", msg,
 			  hb_string ? hb_string : "invalid",
-			  db_string ? db_string : "invalid");
+			  "DRIVER_OK");
 	else
 		sd_printk(KERN_INFO, sdkp,
-			  "%s: Result: hostbyte=0x%02x driverbyte=0x%02x\n",
-			  msg, host_byte(result), driver_byte(result));
+			  "%s: Result: hostbyte=0x%02x driverbyte=%s\n",
+			  msg, host_byte(result), "DRIVER_OK");
 }
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index e45d8d94574c..186b5ff52c3a 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -116,8 +116,7 @@ static int sd_zbc_do_report_zones(struct scsi_disk *sdkp, unsigned char *buf,
 		sd_printk(KERN_ERR, sdkp,
 			  "REPORT ZONES start lba %llu failed\n", lba);
 		sd_print_result(sdkp, "REPORT ZONES", result);
-		if (driver_byte(result) == DRIVER_SENSE &&
-		    scsi_sense_valid(&sshdr))
+		if (result > 0 && scsi_sense_valid(&sshdr))
 			sd_print_sense_hdr(sdkp, &sshdr);
 		return -EIO;
 	}
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index def7ec3bbaf9..4e66994be190 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -498,9 +498,11 @@ sg_read(struct file *filp, char __user *buf, size_t count, loff_t * ppos)
 	old_hdr->host_status = hp->host_status;
 	old_hdr->driver_status = hp->driver_status;
 	if ((CHECK_CONDITION & hp->masked_status) ||
-	    (DRIVER_SENSE & hp->driver_status))
+	    (srp->sense_b[0] & 0x70) == 0x70) {
+		old_hdr->driver_status = DRIVER_SENSE;
 		memcpy(old_hdr->sense_buffer, srp->sense_b,
 		       sizeof (old_hdr->sense_buffer));
+	}
 	switch (hp->host_status) {
 	/* This setup of 'result' is for backward compatibility and is best
 	   ignored by the user who should use target, host + driver status */
@@ -574,7 +576,7 @@ sg_new_read(Sg_fd * sfp, char __user *buf, size_t count, Sg_request * srp)
 	hp->sb_len_wr = 0;
 	if ((hp->mx_sb_len > 0) && hp->sbp) {
 		if ((CHECK_CONDITION & hp->masked_status) ||
-		    (DRIVER_SENSE & hp->driver_status)) {
+		    (srp->sense_b[0] & 0x70) == 0x70) {
 			int sb_len = SCSI_SENSE_BUFFERSIZE;
 			sb_len = (hp->mx_sb_len > sb_len) ? sb_len : hp->mx_sb_len;
 			len = 8 + (int) srp->sense_b[7];	/* Additional sense length field */
@@ -583,6 +585,7 @@ sg_new_read(Sg_fd * sfp, char __user *buf, size_t count, Sg_request * srp)
 				err = -EFAULT;
 				goto err_out;
 			}
+			hp->driver_status = DRIVER_SENSE;
 			hp->sb_len_wr = len;
 		}
 	}
@@ -1373,7 +1376,7 @@ sg_rq_end_io(struct request *rq, blk_status_t status)
 
 		srp->header.status = 0xff & result;
 		srp->header.masked_status = status_byte(result);
-		srp->header.msg_status = msg_byte(result);
+		srp->header.msg_status = COMMAND_COMPLETE;
 		srp->header.host_status = host_byte(result);
 		srp->header.driver_status = driver_byte(result);
 		if ((sdp->sgdebug > 0) &&
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 5db16509b6e1..dcc0b9618a64 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -3087,8 +3087,7 @@ static void pqi_process_aio_io_error(struct pqi_io_request *io_request)
 	}
 
 	if (device_offline && sense_data_length == 0)
-		scsi_build_sense_buffer(0, scmd->sense_buffer, HARDWARE_ERROR,
-			0x3e, 0x1);
+		scsi_build_sense(scmd, 0, HARDWARE_ERROR, 0x3e, 0x1);
 
 	scmd->result = scsi_status;
 	set_host_byte(scmd, host_byte);
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index e4633b84c556..482a07b662a9 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -338,7 +338,7 @@ static int sr_done(struct scsi_cmnd *SCpnt)
 	 * care is taken to avoid unnecessary additional work such as
 	 * memcpy's that could be avoided.
 	 */
-	if (driver_byte(result) != 0 &&		/* An error occurred */
+	if (scsi_status_is_check_condition(result) &&
 	    (SCpnt->sense_buffer[0] & 0x7f) == 0x70) { /* Sense current */
 		switch (SCpnt->sense_buffer[2]) {
 		case MEDIUM_ERROR:
@@ -911,7 +911,7 @@ static void get_capabilities(struct scsi_cd *cd)
 	rc = scsi_mode_sense(cd->device, 0, 0x2a, buffer, ms_len,
 			     SR_TIMEOUT, 3, &data, NULL);
 
-	if (!scsi_status_is_good(rc) || data.length > ms_len ||
+	if (rc < 0 || data.length > ms_len ||
 	    data.header_length + data.block_descriptor_length > data.length) {
 		/* failed, drive doesn't have capabilities mode page */
 		cd->cdi.speed = 1;
diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c
index 15c305283b6c..79d9aa2df528 100644
--- a/drivers/scsi/sr_ioctl.c
+++ b/drivers/scsi/sr_ioctl.c
@@ -201,7 +201,11 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc)
 			      cgc->timeout, IOCTL_RETRIES, 0, 0, NULL);
 
 	/* Minimal error checking.  Ignore cases we know about, and report the rest. */
-	if (driver_byte(result) != 0) {
+	if (result < 0) {
+		err = result;
+		goto out;
+	}
+	if (scsi_status_is_check_condition(result)) {
 		switch (sshdr->sense_key) {
 		case UNIT_ATTENTION:
 			SDev->changed = 1;
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 3b1afe1d5b27..66f48bd6da76 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -390,8 +390,8 @@ static int st_chk_result(struct scsi_tape *STp, struct st_request * SRpnt)
 	if (!debugging) { /* Abnormal conditions for tape */
 		if (!cmdstatp->have_sense)
 			st_printk(KERN_WARNING, STp,
-			       "Error %x (driver bt 0x%x, host bt 0x%x).\n",
-			       result, driver_byte(result), host_byte(result));
+			       "Error %x (driver bt 0, host bt 0x%x).\n",
+			       result, host_byte(result));
 		else if (cmdstatp->have_sense &&
 			 scode != NO_SENSE &&
 			 scode != RECOVERED_ERROR &&
@@ -551,7 +551,7 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd,
 			data_direction == DMA_TO_DEVICE ?
 			REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, 0);
 	if (IS_ERR(req))
-		return DRIVER_ERROR << 24;
+		return PTR_ERR(req);
 	rq = scsi_req(req);
 	req->rq_flags |= RQF_QUIET;
 
@@ -562,7 +562,7 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd,
 				      GFP_KERNEL);
 		if (err) {
 			blk_put_request(req);
-			return DRIVER_ERROR << 24;
+			return err;
 		}
 	}
 
diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index 12471208c7a8..491b435273a6 100644
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -398,11 +398,8 @@ static struct status_msg *stex_get_status(struct st_hba *hba)
 static void stex_invalid_field(struct scsi_cmnd *cmd,
 			       void (*done)(struct scsi_cmnd *))
 {
-	cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
-
 	/* "Invalid field in cdb" */
-	scsi_build_sense_buffer(0, cmd->sense_buffer, ILLEGAL_REQUEST, 0x24,
-				0x0);
+	scsi_build_sense(cmd, 0, ILLEGAL_REQUEST, 0x24, 0x0);
 	done(cmd);
 }
 
@@ -740,7 +737,7 @@ static void stex_scsi_done(struct st_ccb *ccb)
 			result |= DID_OK << 16;
 			break;
 		case SAM_STAT_CHECK_CONDITION:
-			result |= DRIVER_SENSE << 24;
+			result |= DID_OK << 16;
 			break;
 		case SAM_STAT_BUSY:
 			result |= DID_BUS_BUSY << 16;
@@ -751,7 +748,7 @@ static void stex_scsi_done(struct st_ccb *ccb)
 		}
 	}
 	else if (ccb->srb_status & SRB_SEE_SENSE)
-		result = DRIVER_SENSE << 24 | SAM_STAT_CHECK_CONDITION;
+		result = SAM_STAT_CHECK_CONDITION;
 	else switch (ccb->srb_status) {
 		case SRB_STATUS_SELECTION_TIMEOUT:
 			result = DID_NO_CONNECT << 16;
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
index d9a045f9858c..16b65fc4405c 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -170,9 +170,8 @@ static int sym_xerr_cam_status(int cam_status, int x_status)
 void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid)
 {
 	struct scsi_cmnd *cmd = cp->cmd;
-	u_int cam_status, scsi_status, drv_status;
+	u_int cam_status, scsi_status;
 
-	drv_status  = 0;
 	cam_status  = DID_OK;
 	scsi_status = cp->ssss_status;
 
@@ -186,7 +185,6 @@ void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid)
 		    cp->xerr_status == 0) {
 			cam_status = sym_xerr_cam_status(DID_OK,
 							 cp->sv_xerr_status);
-			drv_status = DRIVER_SENSE;
 			/*
 			 *  Bounce back the sense data to user.
 			 */
@@ -235,7 +233,7 @@ void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid)
 		cam_status = sym_xerr_cam_status(DID_ERROR, cp->xerr_status);
 	}
 	scsi_set_resid(cmd, resid);
-	cmd->result = (drv_status << 24) | (cam_status << 16) | scsi_status;
+	cmd->result = (cam_status << 16) | scsi_status;
 }
 
 static int sym_scatter(struct sym_hcb *np, struct sym_ccb *cp, struct scsi_cmnd *cmd)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 86b359dd35e4..23df69de06f3 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8605,7 +8605,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
 		sdev_printk(KERN_WARNING, sdp,
 			    "START_STOP failed for power mode: %d, result %x\n",
 			    pwr_mode, ret);
-		if (driver_byte(ret) == DRIVER_SENSE)
+		if (ret > 0 && scsi_sense_valid(&sshdr))
 			scsi_print_sense_hdr(sdp, NULL, &sshdr);
 	}
 
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index b9c86a7e3b97..fd69a03d6137 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -161,8 +161,7 @@ static void virtscsi_complete_cmd(struct virtio_scsi *vscsi, void *buf)
 		       min_t(u32,
 			     virtio32_to_cpu(vscsi->vdev, resp->sense_len),
 			     VIRTIO_SCSI_SENSE_SIZE));
-		if (resp->sense_len)
-			set_driver_byte(sc, DRIVER_SENSE);
+		set_status_byte(sc, SAM_STAT_CHECK_CONDITION);
 	}
 
 	sc->scsi_done(sc);
@@ -355,7 +354,7 @@ static void virtscsi_rescan_hotunplug(struct virtio_scsi *vscsi)
 		if (result == 0 && inq_result[0] >> 5) {
 			/* PQ indicates the LUN is not attached */
 			scsi_remove_device(sdev);
-		} else if (host_byte(result) == DID_BAD_TARGET) {
+		} else if (result > 0 && host_byte(result) == DID_BAD_TARGET) {
 			/*
 			 * If all LUNs of a virtio-scsi device are unplugged
 			 * it will respond with BAD TARGET on any INQUIRY
diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index 8a79605d9652..f57f8bc037d2 100644
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -576,9 +576,6 @@ static void pvscsi_complete_request(struct pvscsi_adapter *adapter,
 			cmd->result = (DID_RESET << 16);
 		} else {
 			cmd->result = (DID_OK << 16) | sdstat;
-			if (sdstat == SAM_STAT_CHECK_CONDITION &&
-			    cmd->sense_buffer)
-				cmd->result |= (DRIVER_SENSE << 24);
 		}
 	} else
 		switch (btstat) {
@@ -604,9 +601,6 @@ static void pvscsi_complete_request(struct pvscsi_adapter *adapter,
 		case BTSTAT_LUNMISMATCH:
 		case BTSTAT_TAGREJECT:
 		case BTSTAT_BADMSG:
-			cmd->result = (DRIVER_INVALID << 24);
-			fallthrough;
-
 		case BTSTAT_HAHARDWARE:
 		case BTSTAT_INVPHASE:
 		case BTSTAT_HATIMEOUT:
diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index a23277bb870e..4468bc45aaa4 100644
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -1176,13 +1176,13 @@ wd33c93_intr(struct Scsi_Host *instance)
 			if (cmd->SCp.Status == ILLEGAL_STATUS_BYTE)
 				cmd->SCp.Status = lun;
 			if (cmd->cmnd[0] == REQUEST_SENSE
-			    && cmd->SCp.Status != SAM_STAT_GOOD)
-				cmd->result =
-				    (cmd->
-				     result & 0x00ffff) | (DID_ERROR << 16);
-			else
-				cmd->result =
-				    cmd->SCp.Status | (cmd->SCp.Message << 8);
+			    && cmd->SCp.Status != SAM_STAT_GOOD) {
+				set_host_byte(cmd, DID_ERROR);
+			} else {
+				set_host_byte(cmd, DID_OK);
+				scsi_msg_to_host_byte(cmd, cmd->SCp.Message);
+				set_status_byte(cmd, cmd->SCp.Status);
+			}
 			cmd->scsi_done(cmd);
 
 /* We are no longer  connected to a target - check to see if
@@ -1262,11 +1262,14 @@ wd33c93_intr(struct Scsi_Host *instance)
 		    hostdata->connected = NULL;
 		hostdata->busy[cmd->device->id] &= ~(1 << (cmd->device->lun & 0xff));
 		hostdata->state = S_UNCONNECTED;
-		if (cmd->cmnd[0] == REQUEST_SENSE && cmd->SCp.Status != SAM_STAT_GOOD)
-			cmd->result =
-			    (cmd->result & 0x00ffff) | (DID_ERROR << 16);
-		else
-			cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
+		if (cmd->cmnd[0] == REQUEST_SENSE &&
+		    cmd->SCp.Status != SAM_STAT_GOOD) {
+			set_host_byte(cmd, DID_ERROR);
+		} else {
+			set_host_byte(cmd, DID_OK);
+			scsi_msg_to_host_byte(cmd, cmd->SCp.Message);
+			set_status_byte(cmd, cmd->SCp.Status);
+		}
 		cmd->scsi_done(cmd);
 
 /* We are no longer connected to a target - check to see if
@@ -1295,14 +1298,14 @@ wd33c93_intr(struct Scsi_Host *instance)
 			hostdata->busy[cmd->device->id] &= ~(1 << (cmd->device->lun & 0xff));
 			hostdata->state = S_UNCONNECTED;
 			DB(DB_INTR, printk(":%d", cmd->SCp.Status))
-			    if (cmd->cmnd[0] == REQUEST_SENSE
-				&& cmd->SCp.Status != SAM_STAT_GOOD)
-				cmd->result =
-				    (cmd->
-				     result & 0x00ffff) | (DID_ERROR << 16);
-			else
-				cmd->result =
-				    cmd->SCp.Status | (cmd->SCp.Message << 8);
+			if (cmd->cmnd[0] == REQUEST_SENSE
+			    && cmd->SCp.Status != SAM_STAT_GOOD) {
+				set_host_byte(cmd, DID_ERROR);
+			} else {
+				set_host_byte(cmd, DID_OK);
+				scsi_msg_to_host_byte(cmd, cmd->SCp.Message);
+				set_status_byte(cmd, cmd->SCp.Status);
+			}
 			cmd->scsi_done(cmd);
 			break;
 		case S_PRE_TMP_DISC:
diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c
index 259fc248d06c..ec9d399fbbd8 100644
--- a/drivers/scsi/xen-scsifront.c
+++ b/drivers/scsi/xen-scsifront.c
@@ -251,6 +251,7 @@ static void scsifront_cdb_cmd_done(struct vscsifrnt_info *info,
 	struct scsi_cmnd *sc;
 	uint32_t id;
 	uint8_t sense_len;
+	int result;
 
 	id = ring_rsp->rqid;
 	shadow = info->shadow[id];
@@ -261,7 +262,12 @@ static void scsifront_cdb_cmd_done(struct vscsifrnt_info *info,
 	scsifront_gnttab_done(info, shadow);
 	scsifront_put_rqid(info, id);
 
-	sc->result = ring_rsp->rslt;
+	result = ring_rsp->rslt;
+	if (result >> 24)
+		set_host_byte(sc, DID_ERROR);
+	else
+		set_host_byte(sc, host_byte(result));
+	set_status_byte(sc, result & 0xff);
 	scsi_set_resid(sc, ring_rsp->residual_len);
 
 	sense_len = min_t(uint8_t, VSCSIIF_SENSE_BUFFERSIZE,
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 2687fd7d45db..6d0b0e67e79e 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -566,7 +566,6 @@ static int tcm_loop_queue_data_or_status(const char *func,
 		memcpy(sc->sense_buffer, se_cmd->sense_buffer,
 				SCSI_SENSE_BUFFERSIZE);
 		sc->result = SAM_STAT_CHECK_CONDITION;
-		set_driver_byte(sc, DRIVER_SENSE);
 	} else
 		sc->result = scsi_status;
 
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 5517c7dd5144..3bb921345bce 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -123,7 +123,7 @@ target_emulate_report_referrals(struct se_cmd *cmd)
 
 	transport_kunmap_data_sg(cmd);
 
-	target_complete_cmd(cmd, GOOD);
+	target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return 0;
 }
 
@@ -255,7 +255,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
 	}
 	transport_kunmap_data_sg(cmd);
 
-	target_complete_cmd_with_length(cmd, GOOD, rd_len + 4);
+	target_complete_cmd_with_length(cmd, SAM_STAT_GOOD, rd_len + 4);
 	return 0;
 }
 
@@ -424,7 +424,7 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd)
 out:
 	transport_kunmap_data_sg(cmd);
 	if (!rc)
-		target_complete_cmd(cmd, GOOD);
+		target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return rc;
 }
 
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index d6fdd1c61f90..deb2b8b64d20 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -474,7 +474,7 @@ iblock_execute_zero_out(struct block_device *bdev, struct se_cmd *cmd)
 	if (ret)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 
-	target_complete_cmd(cmd, GOOD);
+	target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return 0;
 }
 
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 6fd5fec95539..4b94b085625b 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -234,7 +234,7 @@ target_scsi2_reservation_release(struct se_cmd *cmd)
 out_unlock:
 	spin_unlock(&dev->dev_reservation_lock);
 out:
-	target_complete_cmd(cmd, GOOD);
+	target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return 0;
 }
 
@@ -297,7 +297,7 @@ out_unlock:
 	spin_unlock(&dev->dev_reservation_lock);
 out:
 	if (!ret)
-		target_complete_cmd(cmd, GOOD);
+		target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return ret;
 }
 
@@ -3676,7 +3676,7 @@ target_scsi3_emulate_pr_out(struct se_cmd *cmd)
 	}
 
 	if (!ret)
-		target_complete_cmd(cmd, GOOD);
+		target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return ret;
 }
 
@@ -4073,7 +4073,7 @@ target_scsi3_emulate_pr_in(struct se_cmd *cmd)
 	}
 
 	if (!ret)
-		target_complete_cmd(cmd, GOOD);
+		target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return ret;
 }
 
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index f2a11414366d..e2b97cba6679 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -1044,7 +1044,7 @@ static void pscsi_req_done(struct request *req, blk_status_t status)
 	struct se_cmd *cmd = req->end_io_data;
 	struct pscsi_plugin_task *pt = cmd->priv;
 	int result = scsi_req(req)->result;
-	u8 scsi_status = status_byte(result) << 1;
+	u8 scsi_status = result & 0xff;
 
 	if (scsi_status != SAM_STAT_GOOD) {
 		pr_debug("PSCSI Status Byte exception at cmd: %p CDB:"
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 7b07e557dc8d..b32f4ee88e79 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -67,7 +67,7 @@ sbc_emulate_readcapacity(struct se_cmd *cmd)
 		transport_kunmap_data_sg(cmd);
 	}
 
-	target_complete_cmd_with_length(cmd, GOOD, 8);
+	target_complete_cmd_with_length(cmd, SAM_STAT_GOOD, 8);
 	return 0;
 }
 
@@ -130,7 +130,7 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd)
 		transport_kunmap_data_sg(cmd);
 	}
 
-	target_complete_cmd_with_length(cmd, GOOD, 32);
+	target_complete_cmd_with_length(cmd, SAM_STAT_GOOD, 32);
 	return 0;
 }
 
@@ -202,14 +202,14 @@ sbc_execute_write_same_unmap(struct se_cmd *cmd)
 			return ret;
 	}
 
-	target_complete_cmd(cmd, GOOD);
+	target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return 0;
 }
 
 static sense_reason_t
 sbc_emulate_noop(struct se_cmd *cmd)
 {
-	target_complete_cmd(cmd, GOOD);
+	target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return 0;
 }
 
@@ -1245,7 +1245,7 @@ sbc_execute_unmap(struct se_cmd *cmd)
 err:
 	transport_kunmap_data_sg(cmd);
 	if (!ret)
-		target_complete_cmd(cmd, GOOD);
+		target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return ret;
 }
 
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 2cb141ed68f5..22703a0dbd07 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -781,7 +781,7 @@ out:
 	kfree(buf);
 
 	if (!ret)
-		target_complete_cmd_with_length(cmd, GOOD, len);
+		target_complete_cmd_with_length(cmd, SAM_STAT_GOOD, len);
 	return ret;
 }
 
@@ -1135,7 +1135,7 @@ set_length:
 		transport_kunmap_data_sg(cmd);
 	}
 
-	target_complete_cmd_with_length(cmd, GOOD, length);
+	target_complete_cmd_with_length(cmd, SAM_STAT_GOOD, length);
 	return 0;
 }
 
@@ -1153,7 +1153,7 @@ static sense_reason_t spc_emulate_modeselect(struct se_cmd *cmd)
 	int i;
 
 	if (!cmd->data_length) {
-		target_complete_cmd(cmd, GOOD);
+		target_complete_cmd(cmd, SAM_STAT_GOOD);
 		return 0;
 	}
 
@@ -1196,7 +1196,7 @@ out:
 	transport_kunmap_data_sg(cmd);
 
 	if (!ret)
-		target_complete_cmd(cmd, GOOD);
+		target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return ret;
 }
 
@@ -1229,7 +1229,7 @@ static sense_reason_t spc_emulate_request_sense(struct se_cmd *cmd)
 	memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length));
 	transport_kunmap_data_sg(cmd);
 
-	target_complete_cmd(cmd, GOOD);
+	target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return 0;
 }
 
@@ -1296,7 +1296,7 @@ done:
 		transport_kunmap_data_sg(cmd);
 	}
 
-	target_complete_cmd_with_length(cmd, GOOD, 8 + lun_count * 8);
+	target_complete_cmd_with_length(cmd, SAM_STAT_GOOD, 8 + lun_count * 8);
 	return 0;
 }
 EXPORT_SYMBOL(spc_emulate_report_luns);
@@ -1304,7 +1304,7 @@ EXPORT_SYMBOL(spc_emulate_report_luns);
 static sense_reason_t
 spc_emulate_testunitready(struct se_cmd *cmd)
 {
-	target_complete_cmd(cmd, GOOD);
+	target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return 0;
 }
 
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 2e7ce661ef32..0f1319336f3e 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -998,7 +998,7 @@ static sense_reason_t target_rcr_operating_parameters(struct se_cmd *se_cmd)
 	put_unaligned_be32(42, &p[0]);
 
 	transport_kunmap_data_sg(se_cmd);
-	target_complete_cmd(se_cmd, GOOD);
+	target_complete_cmd(se_cmd, SAM_STAT_GOOD);
 
 	return TCM_NO_SENSE;
 }
diff --git a/drivers/usb/storage/cypress_atacb.c b/drivers/usb/storage/cypress_atacb.c
index a6f3267bbef6..2f7093ba5a2f 100644
--- a/drivers/usb/storage/cypress_atacb.c
+++ b/drivers/usb/storage/cypress_atacb.c
@@ -221,11 +221,11 @@ static void cypress_atacb_passthrough(struct scsi_cmnd *srb, struct us_data *us)
 		desc[12] = regs[6];  /* device */
 		desc[13] = regs[7];  /* command */
 
-		srb->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
+		srb->result = SAM_STAT_CHECK_CONDITION;
 	}
 	goto end;
 invalid_fld:
-	srb->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
+	srb->result = SAM_STAT_CHECK_CONDITION;
 
 	memcpy(srb->sense_buffer,
 			usb_stor_sense_invalidCDB,
diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c
index 55a4763da05e..61ce0d142eea 100644
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -222,10 +222,10 @@ static void scsiback_print_status(char *sense_buffer, int errors,
 {
 	struct scsiback_tpg *tpg = pending_req->v2p->tpg;
 
-	pr_err("[%s:%d] cmnd[0]=%02x -> st=%02x msg=%02x host=%02x drv=%02x\n",
+	pr_err("[%s:%d] cmnd[0]=%02x -> st=%02x msg=%02x host=%02x\n",
 	       tpg->tport->tport_name, pending_req->v2p->lun,
-	       pending_req->cmnd[0], status_byte(errors), msg_byte(errors),
-	       host_byte(errors), driver_byte(errors));
+	       pending_req->cmnd[0], errors & 0xff, COMMAND_COMPLETE,
+	       host_byte(errors));
 }
 
 static void scsiback_fast_flush_area(struct vscsibk_pend *req)
@@ -719,10 +719,10 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info,
 				result = DID_NO_CONNECT;
 				break;
 			default:
-				result = DRIVER_ERROR;
+				result = DID_ERROR;
 				break;
 			}
-			scsiback_send_response(info, NULL, result << 24, 0,
+			scsiback_send_response(info, NULL, result << 16, 0,
 					       ring_req.rqid);
 			return 1;
 		}
@@ -732,7 +732,7 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info,
 			if (scsiback_gnttab_data_map(&ring_req, pending_req)) {
 				scsiback_fast_flush_area(pending_req);
 				scsiback_do_resp_with_sense(NULL,
-						DRIVER_ERROR << 24, 0, pending_req);
+						DID_ERROR << 16, 0, pending_req);
 				transport_generic_free_cmd(&pending_req->se_cmd, 0);
 			} else {
 				scsiback_cmd_exec(pending_req);
@@ -747,7 +747,7 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info,
 			break;
 		default:
 			pr_err_ratelimited("invalid request\n");
-			scsiback_do_resp_with_sense(NULL, DRIVER_ERROR << 24, 0,
+			scsiback_do_resp_with_sense(NULL, DID_ERROR << 16, 0,
 						    pending_req);
 			transport_generic_free_cmd(&pending_req->se_cmd, 0);
 			break;
@@ -1401,8 +1401,7 @@ static int scsiback_queue_status(struct se_cmd *se_cmd)
 	if (se_cmd->sense_buffer &&
 	    ((se_cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) ||
 	     (se_cmd->se_cmd_flags & SCF_EMULATED_TASK_SENSE)))
-		pending_req->result = (DRIVER_SENSE << 24) |
-				      SAM_STAT_CHECK_CONDITION;
+		pending_req->result = SAM_STAT_CHECK_CONDITION;
 	else
 		pending_req->result = se_cmd->scsi_status;
 
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 7f392405991b..358f969f368f 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -62,6 +62,21 @@ static inline int scsi_is_wlun(u64 lun)
 	return (lun & 0xff00) == SCSI_W_LUN_BASE;
 }
 
+/**
+ * scsi_status_is_check_condition - check the status return.
+ *
+ * @status: the status passed up from the driver (including host and
+ *          driver components)
+ *
+ * This returns true if the status code is SAM_STAT_CHECK_CONDITION.
+ */
+static inline int scsi_status_is_check_condition(int status)
+{
+	if (status < 0)
+		return false;
+	status &= 0xfe;
+	return status == SAM_STAT_CHECK_CONDITION;
+}
 
 /*
  *  MESSAGE CODES
@@ -138,20 +153,6 @@ static inline int scsi_is_wlun(u64 lun)
 #define DRIVER_OK       0x00	/* Driver status                           */
 
 /*
- *  These indicate the error that occurred, and what is available.
- */
-
-#define DRIVER_BUSY         0x01
-#define DRIVER_SOFT         0x02
-#define DRIVER_MEDIA        0x03
-#define DRIVER_ERROR        0x04
-
-#define DRIVER_INVALID      0x05
-#define DRIVER_TIMEOUT      0x06
-#define DRIVER_HARD         0x07
-#define DRIVER_SENSE	    0x08
-
-/*
  * Internal return values.
  */
 enum scsi_disposition {
@@ -180,14 +181,10 @@ enum scsi_disposition {
  *  These are set by:
  *
  *      status byte = set from target device
- *      msg_byte    = return status from host adapter itself.
+ *      msg_byte    (unused)
  *      host_byte   = set by low-level driver to indicate status.
- *      driver_byte = set by mid-level.
  */
-#define status_byte(result) (((result) >> 1) & 0x7f)
-#define msg_byte(result)    (((result) >> 8) & 0xff)
 #define host_byte(result)   (((result) >> 16) & 0xff)
-#define driver_byte(result) (((result) >> 24) & 0xff)
 
 #define sense_class(sense)  (((sense) >> 4) & 0x7)
 #define sense_error(sense)  ((sense) & 0xf)
@@ -259,10 +256,13 @@ enum scsi_disposition {
  * This returns true for known good conditions that may be treated as
  * command completed normally
  */
-static inline int scsi_status_is_good(int status)
+static inline bool scsi_status_is_good(int status)
 {
+	if (status < 0)
+		return false;
+
 	if (host_byte(status) == DID_NO_CONNECT)
-		return 0;
+		return false;
 
 	/*
 	 * FIXME: bit0 is listed as reserved in SCSI-2, but is
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index fed024f4c02a..779a59fe8676 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -315,9 +315,9 @@ static inline void set_status_byte(struct scsi_cmnd *cmd, char status)
 	cmd->result = (cmd->result & 0xffffff00) | status;
 }
 
-static inline void set_msg_byte(struct scsi_cmnd *cmd, char status)
+static inline u8 get_status_byte(struct scsi_cmnd *cmd)
 {
-	cmd->result = (cmd->result & 0xffff00ff) | (status << 8);
+	return cmd->result & 0xff;
 }
 
 static inline void set_host_byte(struct scsi_cmnd *cmd, char status)
@@ -325,9 +325,36 @@ static inline void set_host_byte(struct scsi_cmnd *cmd, char status)
 	cmd->result = (cmd->result & 0xff00ffff) | (status << 16);
 }
 
-static inline void set_driver_byte(struct scsi_cmnd *cmd, char status)
+static inline u8 get_host_byte(struct scsi_cmnd *cmd)
 {
-	cmd->result = (cmd->result & 0x00ffffff) | (status << 24);
+	return (cmd->result >> 16) & 0xff;
+}
+
+/**
+ * scsi_msg_to_host_byte() - translate message byte
+ *
+ * Translate the SCSI parallel message byte to a matching
+ * host byte setting. A message of COMMAND_COMPLETE indicates
+ * a successful command execution, any other message indicate
+ * an error. As the messages themselves only have a meaning
+ * for the SCSI parallel protocol this function translates
+ * them into a matching host byte value for SCSI EH.
+ */
+static inline void scsi_msg_to_host_byte(struct scsi_cmnd *cmd, u8 msg)
+{
+	switch (msg) {
+	case COMMAND_COMPLETE:
+		break;
+	case ABORT_TASK_SET:
+		set_host_byte(cmd, DID_ABORT);
+		break;
+	case TARGET_RESET:
+		set_host_byte(cmd, DID_RESET);
+		break;
+	default:
+		set_host_byte(cmd, DID_ERROR);
+		break;
+	}
 }
 
 static inline unsigned scsi_transfer_length(struct scsi_cmnd *scmd)
@@ -341,4 +368,7 @@ static inline unsigned scsi_transfer_length(struct scsi_cmnd *scmd)
 	return xfer_len;
 }
 
+extern void scsi_build_sense(struct scsi_cmnd *scmd, int desc,
+			     u8 key, u8 asc, u8 ascq);
+
 #endif /* _SCSI_SCSI_CMND_H */
diff --git a/include/scsi/scsi_proto.h b/include/scsi/scsi_proto.h
index 5c106c4f249e..cb218a576bcf 100644
--- a/include/scsi/scsi_proto.h
+++ b/include/scsi/scsi_proto.h
@@ -202,27 +202,7 @@ struct scsi_varlen_cdb_hdr {
 #define SAM_STAT_ACA_ACTIVE      0x30
 #define SAM_STAT_TASK_ABORTED    0x40
 
-/*
- *  Status codes. These are deprecated as they are shifted 1 bit right
- *  from those found in the SCSI standards. This causes confusion for
- *  applications that are ported to several OSes. Prefer SAM Status codes
- *  above.
- */
-
-#define GOOD                 0x00
-#define CHECK_CONDITION      0x01
-#define CONDITION_GOOD       0x02
-#define BUSY                 0x04
-#define INTERMEDIATE_GOOD    0x08
-#define INTERMEDIATE_C_GOOD  0x0a
-#define RESERVATION_CONFLICT 0x0c
-#define COMMAND_TERMINATED   0x11
-#define QUEUE_FULL           0x14
-#define ACA_ACTIVE           0x18
-#define TASK_ABORTED         0x20
-
-#define STATUS_MASK          0xfe
-
+#define STATUS_MASK         0xfe
 /*
  *  SENSE KEYS
  */
diff --git a/include/scsi/sg.h b/include/scsi/sg.h
index e1a42c2409cc..843cefb8efce 100644
--- a/include/scsi/sg.h
+++ b/include/scsi/sg.h
@@ -131,6 +131,39 @@ struct compat_sg_io_hdr {
 #define SG_INFO_DIRECT_IO 0x2   /* direct IO requested and performed */
 #define SG_INFO_MIXED_IO 0x4    /* part direct, part indirect IO */
 
+/*
+ * Obsolete DRIVER_SENSE driver byte
+ *
+ * Originally the SCSI midlayer would set the DRIVER_SENSE driver byte when
+ * a sense code was generated and a sense buffer was allocated.
+ * However, as nowadays every scsi command has a sense code allocated this
+ * distinction became moot as one could check the sense buffer directly.
+ * Consequently this byte is not set anymore from the midlayer, but SG will
+ * keep setting this byte to be compatible with previous releases.
+ */
+#define DRIVER_SENSE 0x08
+/* Obsolete driver_byte() declaration */
+#define driver_byte(result) (((result) >> 24) & 0xff)
+
+/*
+ *  Original linux SCSI Status codes. They are shifted 1 bit right
+ *  from those found in the SCSI standards.
+ */
+
+#define GOOD                 0x00
+#define CHECK_CONDITION      0x01
+#define CONDITION_GOOD       0x02
+#define BUSY                 0x04
+#define INTERMEDIATE_GOOD    0x08
+#define INTERMEDIATE_C_GOOD  0x0a
+#define RESERVATION_CONFLICT 0x0c
+#define COMMAND_TERMINATED   0x11
+#define QUEUE_FULL           0x14
+#define ACA_ACTIVE           0x18
+#define TASK_ABORTED         0x20
+
+/* Obsolete status_byte() declaration */
+#define status_byte(result) (((result) >> 1) & 0x7f)
 
 typedef struct sg_scsi_id { /* used by SG_GET_SCSI_ID ioctl() */
     int host_no;        /* as in "scsi<n>" where 'n' is one of 0, 1, 2 etc */
diff --git a/include/trace/events/scsi.h b/include/trace/events/scsi.h
index f624969a4f14..370ade0d4093 100644
--- a/include/trace/events/scsi.h
+++ b/include/trace/events/scsi.h
@@ -124,50 +124,6 @@
 		scsi_hostbyte_name(DID_TRANSPORT_DISRUPTED),	\
 		scsi_hostbyte_name(DID_TRANSPORT_FAILFAST))
 
-#define scsi_driverbyte_name(result)	{ result, #result }
-#define show_driverbyte_name(val)				\
-	__print_symbolic(val,					\
-		scsi_driverbyte_name(DRIVER_OK),		\
-		scsi_driverbyte_name(DRIVER_BUSY),		\
-		scsi_driverbyte_name(DRIVER_SOFT),		\
-		scsi_driverbyte_name(DRIVER_MEDIA),		\
-		scsi_driverbyte_name(DRIVER_ERROR),		\
-		scsi_driverbyte_name(DRIVER_INVALID),		\
-		scsi_driverbyte_name(DRIVER_TIMEOUT),		\
-		scsi_driverbyte_name(DRIVER_HARD),		\
-		scsi_driverbyte_name(DRIVER_SENSE))
-
-#define scsi_msgbyte_name(result)	{ result, #result }
-#define show_msgbyte_name(val)					\
-	__print_symbolic(val,					\
-		scsi_msgbyte_name(COMMAND_COMPLETE),		\
-		scsi_msgbyte_name(EXTENDED_MESSAGE),		\
-		scsi_msgbyte_name(SAVE_POINTERS),		\
-		scsi_msgbyte_name(RESTORE_POINTERS),		\
-		scsi_msgbyte_name(DISCONNECT),			\
-		scsi_msgbyte_name(INITIATOR_ERROR),		\
-		scsi_msgbyte_name(ABORT_TASK_SET),		\
-		scsi_msgbyte_name(MESSAGE_REJECT),		\
-		scsi_msgbyte_name(NOP),				\
-		scsi_msgbyte_name(MSG_PARITY_ERROR),		\
-		scsi_msgbyte_name(LINKED_CMD_COMPLETE),		\
-		scsi_msgbyte_name(LINKED_FLG_CMD_COMPLETE),	\
-		scsi_msgbyte_name(TARGET_RESET),		\
-		scsi_msgbyte_name(ABORT_TASK),			\
-		scsi_msgbyte_name(CLEAR_TASK_SET),		\
-		scsi_msgbyte_name(INITIATE_RECOVERY),		\
-		scsi_msgbyte_name(RELEASE_RECOVERY),		\
-		scsi_msgbyte_name(CLEAR_ACA),			\
-		scsi_msgbyte_name(LOGICAL_UNIT_RESET),		\
-		scsi_msgbyte_name(SIMPLE_QUEUE_TAG),		\
-		scsi_msgbyte_name(HEAD_OF_QUEUE_TAG),		\
-		scsi_msgbyte_name(ORDERED_QUEUE_TAG),		\
-		scsi_msgbyte_name(IGNORE_WIDE_RESIDUE),		\
-		scsi_msgbyte_name(ACA),				\
-		scsi_msgbyte_name(QAS_REQUEST),			\
-		scsi_msgbyte_name(BUS_DEVICE_RESET),		\
-		scsi_msgbyte_name(ABORT))
-
 #define scsi_statusbyte_name(result)	{ result, #result }
 #define show_statusbyte_name(val)				\
 	__print_symbolic(val,					\
@@ -327,9 +283,9 @@ DECLARE_EVENT_CLASS(scsi_cmd_done_timeout_template,
 		  show_opcode_name(__entry->opcode),
 		  __parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),
 		  __print_hex(__get_dynamic_array(cmnd), __entry->cmd_len),
-		  show_driverbyte_name(((__entry->result) >> 24) & 0xff),
+		  "DRIVER_OK",
 		  show_hostbyte_name(((__entry->result) >> 16) & 0xff),
-		  show_msgbyte_name(((__entry->result) >> 8) & 0xff),
+		  "COMMAND_COMPLETE",
 		  show_statusbyte_name(__entry->result & 0xff))
 );