diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 72691fd..0586f66 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3945,7 +3945,7 @@
  *	Zero.
  */
 int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel,
-		       unsigned int id, unsigned int lun)
+		       unsigned int id, u64 lun)
 {
 	struct ata_port *ap = ata_shost_to_port(shost);
 	unsigned long flags;
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 45b5ab3..5f4e0cc 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -144,7 +144,7 @@
 extern void ata_scsi_dev_rescan(struct work_struct *work);
 extern int ata_bus_probe(struct ata_port *ap);
 extern int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel,
-			      unsigned int id, unsigned int lun);
+			      unsigned int id, u64 lun);
 
 
 /* libata-eh.c */
diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index 76c05bc..f37ea6f 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -405,7 +405,7 @@
 typedef struct _VirtDevice {
 	VirtTarget		*vtarget;
 	u8			 configured_lun;
-	int			 lun;
+	u64			 lun;
 } VirtDevice;
 
 /*
diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index 02a3eef..bf2a2ce 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -204,7 +204,7 @@
 	 || (loops > 0 && ioc->active == 0)) {
 		spin_unlock_irqrestore(shost->host_lock, flags);
 		dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
-			"mptfc_block_error_handler.%d: %d:%d, port status is "
+			"mptfc_block_error_handler.%d: %d:%llu, port status is "
 			"%x, active flag %d, deferring %s recovery.\n",
 			ioc->name, ioc->sh->host_no,
 			SCpnt->device->id, SCpnt->device->lun,
@@ -218,7 +218,7 @@
 	if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
 	 || ioc->active == 0) {
 		dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
-			"%s.%d: %d:%d, failing recovery, "
+			"%s.%d: %d:%llu, failing recovery, "
 			"port state %x, active %d, vdevice %p.\n", caller,
 			ioc->name, ioc->sh->host_no,
 			SCpnt->device->id, SCpnt->device->lun, ready,
@@ -226,7 +226,7 @@
 		return FAILED;
 	}
 	dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
-		"%s.%d: %d:%d, executing recovery.\n", caller,
+		"%s.%d: %d:%llu, executing recovery.\n", caller,
 		ioc->name, ioc->sh->host_no,
 		SCpnt->device->id, SCpnt->device->lun));
 	return (*func)(SCpnt);
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index 2a1c6f2..39e5668 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -95,7 +95,7 @@
 static void	mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
 
 int	mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
-		int lun, int ctx2abort, ulong timeout);
+		u64 lun, int ctx2abort, ulong timeout);
 
 int		mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
 int		mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
@@ -536,7 +536,7 @@
 	}
 
 	scsi_print_command(sc);
-	printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %d\n",
+	printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %llu\n",
 	    ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun);
 	printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
 	    "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
@@ -692,7 +692,7 @@
 		 */
 		if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 		    pScsiReply->ResponseInfo) {
-			printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
+			printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%llu] "
 			"FCP_ResponseInfo=%08xh\n", ioc->name,
 			sc->device->host->host_no, sc->device->channel,
 			sc->device->id, sc->device->lun,
@@ -1155,7 +1155,7 @@
 		return;
 	ioc = hd->ioc;
 	if (time - hd->last_queue_full > 10 * HZ) {
-		dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
+		dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%llu) reported QUEUE_FULL!\n",
 				ioc->name, 0, sc->device->id, sc->device->lun));
 		hd->last_queue_full = time;
 	}
@@ -1518,7 +1518,7 @@
  *
  **/
 int
-mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun,
+mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun,
 	int ctx2abort, ulong timeout)
 {
 	MPT_FRAME_HDR	*mf;
@@ -2380,7 +2380,7 @@
 	vdevice = sdev->hostdata;
 
 	dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
-		"device @ %p, channel=%d, id=%d, lun=%d\n",
+		"device @ %p, channel=%d, id=%d, lun=%llu\n",
 		ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
 	if (ioc->bus_type == SPI)
 		dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
@@ -2971,7 +2971,7 @@
 					   + (my_idx * MPT_SENSE_BUFFER_ALLOC));
 
 	devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
-	    "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n",
+	    "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%llu\n",
 	    ioc->name, __func__, cmd, io->channel, io->id, io->lun));
 
 	if (dir == MPI_SCSIIO_CONTROL_READ)
diff --git a/drivers/message/fusion/mptscsih.h b/drivers/message/fusion/mptscsih.h
index 99e3390..e1b1a19 100644
--- a/drivers/message/fusion/mptscsih.h
+++ b/drivers/message/fusion/mptscsih.h
@@ -98,7 +98,7 @@
 	u8		cmd;		/* SCSI Op Code */
 	u8		channel;	/* bus number */
 	u8		id;		/* SCSI ID (virtual) */
-	int		lun;
+	u64		lun;
 	u8		flags;		/* Bit Field - See above */
 	u8		physDiskNum;	/* Phys disk number, -1 else */
 	u8		rsvd2;
@@ -115,7 +115,7 @@
 extern const char * mptscsih_info(struct Scsi_Host *SChost);
 extern int mptscsih_qcmd(struct scsi_cmnd *SCpnt);
 extern int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel,
-	u8 id, int lun, int ctx2abort, ulong timeout);
+	u8 id, u64 lun, int ctx2abort, ulong timeout);
 extern void mptscsih_slave_destroy(struct scsi_device *device);
 extern int mptscsih_slave_configure(struct scsi_device *device);
 extern int mptscsih_abort(struct scsi_cmnd * SCpnt);
diff --git a/drivers/message/i2o/i2o_scsi.c b/drivers/message/i2o/i2o_scsi.c
index 1d31d72..e7de92c 100644
--- a/drivers/message/i2o/i2o_scsi.c
+++ b/drivers/message/i2o/i2o_scsi.c
@@ -78,7 +78,7 @@
 struct i2o_scsi_host {
 	struct Scsi_Host *scsi_host;	/* pointer to the SCSI host */
 	struct i2o_controller *iop;	/* pointer to the I2O controller */
-	unsigned int lun;	/* lun's used for block devices */
+	u64 lun;	/* lun's used for block devices */
 	struct i2o_device *channel[0];	/* channel->i2o_dev mapping table */
 };
 
@@ -287,9 +287,8 @@
 	}
 
 	if (le64_to_cpu(lun) >= scsi_host->max_lun) {
-		osm_warn("SCSI device lun (%lu) >= max_lun of I2O host (%d)",
-			 (long unsigned int)le64_to_cpu(lun),
-			 scsi_host->max_lun);
+		osm_warn("SCSI device lun (%llu) >= max_lun of I2O host (%d)",
+			 le64_to_cpu(lun), scsi_host->max_lun);
 		return -EFAULT;
 	}
 
@@ -308,9 +307,9 @@
 	if (rc)
 		goto err;
 
-	osm_info("device added (TID: %03x) channel: %d, id: %d, lun: %ld\n",
+	osm_info("device added (TID: %03x) channel: %d, id: %d, lun: %llu\n",
 		 i2o_dev->lct_data.tid, channel, le32_to_cpu(id),
-		 (long unsigned int)le64_to_cpu(lun));
+		 le64_to_cpu(lun));
 
 	return 0;
 
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 0ca6448..5d7fbe4 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -418,7 +418,8 @@
 	rec->scsi_retries = sc->retries;
 	rec->scsi_allowed = sc->allowed;
 	rec->scsi_id = sc->device->id;
-	rec->scsi_lun = sc->device->lun;
+	/* struct zfcp_dbf_scsi needs to be updated to handle 64bit LUNs */
+	rec->scsi_lun = (u32)sc->device->lun;
 	rec->host_scribble = (unsigned long)sc->host_scribble;
 
 	memcpy(rec->scsi_opcode, sc->cmnd,
diff --git a/drivers/s390/scsi/zfcp_unit.c b/drivers/s390/scsi/zfcp_unit.c
index 39f5446..157d3d2 100644
--- a/drivers/s390/scsi/zfcp_unit.c
+++ b/drivers/s390/scsi/zfcp_unit.c
@@ -21,7 +21,7 @@
 void zfcp_unit_scsi_scan(struct zfcp_unit *unit)
 {
 	struct fc_rport *rport = unit->port->rport;
-	unsigned int lun;
+	u64 lun;
 
 	lun = scsilun_to_int((struct scsi_lun *) &unit->fcp_lun);
 
@@ -188,7 +188,7 @@
 {
 	struct Scsi_Host *shost;
 	struct zfcp_port *port;
-	unsigned int lun;
+	u64 lun;
 
 	lun = scsilun_to_int((struct scsi_lun *) &unit->fcp_lun);
 	port = unit->port;
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index a3adfb4..fabd4be 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -1005,7 +1005,7 @@
 						 DMA_TO_DEVICE);
 
 				cmnd[0] = REQUEST_SENSE;
-				cmnd[1] = (SCp->device->lun & 0x7) << 5;
+				cmnd[1] = (lun & 0x7) << 5;
 				cmnd[2] = 0;
 				cmnd[3] = 0;
 				cmnd[4] = SCSI_SENSE_BUFFERSIZE;
@@ -1396,7 +1396,8 @@
 	struct NCR_700_Host_Parameters *hostdata =
 		(struct NCR_700_Host_Parameters *)SCp->device->host->hostdata[0];
 	__u16 count = 1;	/* for IDENTIFY message */
-	
+	u8 lun = SCp->device->lun;
+
 	if(hostdata->state != NCR_700_HOST_FREE) {
 		/* keep this inside the lock to close the race window where
 		 * the running command finishes on another CPU while we don't
@@ -1415,7 +1416,7 @@
 
 	hostdata->msgout[0] = NCR_700_identify((SCp->cmnd[0] != REQUEST_SENSE &&
 						slot->flags != NCR_700_FLAG_AUTOSENSE),
-					       SCp->device->lun);
+					       lun);
 	/* for INQUIRY or REQUEST_SENSE commands, we cannot be sure
 	 * if the negotiated transfer parameters still hold, so
 	 * always renegotiate them */
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index 93d13fc..45da3c8 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -762,7 +762,7 @@
 
 static void lprint_Scsi_Cmnd(Scsi_Cmnd * cmd, struct seq_file *m)
 {
-	SPRINTF("scsi%d : destination target %d, lun %d\n", cmd->device->host->host_no, cmd->device->id, cmd->device->lun);
+	SPRINTF("scsi%d : destination target %d, lun %llu\n", cmd->device->host->host_no, cmd->device->id, cmd->device->lun);
 	SPRINTF("        command = ");
 	lprint_command(cmd->cmnd, m);
 }
@@ -1039,9 +1039,10 @@
 			for (tmp = (Scsi_Cmnd *) hostdata->issue_queue, prev = NULL; tmp; prev = tmp, tmp = (Scsi_Cmnd *) tmp->host_scribble) 
 			{
 				if (prev != tmp)
-					dprintk(NDEBUG_LISTS, "MAIN tmp=%p   target=%d   busy=%d lun=%d\n", tmp, tmp->device->id, hostdata->busy[tmp->device->id], tmp->device->lun);
+				    dprintk(NDEBUG_LISTS, "MAIN tmp=%p   target=%d   busy=%d lun=%llu\n", tmp, tmp->device->id, hostdata->busy[tmp->device->id], tmp->device->lun);
 				/*  When we find one, remove it from the issue queue. */
-				if (!(hostdata->busy[tmp->device->id] & (1 << tmp->device->lun))) {
+				if (!(hostdata->busy[tmp->device->id] &
+				      (1 << (u8)(tmp->device->lun & 0xff)))) {
 					if (prev) {
 						REMOVE(prev, prev->host_scribble, tmp, tmp->host_scribble);
 						prev->host_scribble = tmp->host_scribble;
@@ -1057,7 +1058,7 @@
 					 * On failure, we must add the command back to the
 					 *   issue queue so we can keep trying. 
 					 */
-					dprintk(NDEBUG_MAIN|NDEBUG_QUEUES, "scsi%d : main() : command for target %d lun %d removed from issue_queue\n", instance->host_no, tmp->device->id, tmp->device->lun);
+					dprintk(NDEBUG_MAIN|NDEBUG_QUEUES, "scsi%d : main() : command for target %d lun %llu removed from issue_queue\n", instance->host_no, tmp->device->id, tmp->device->lun);
 	
 					/*
 					 * A successful selection is defined as one that 
@@ -1524,7 +1525,7 @@
 	dprintk(NDEBUG_SELECTION, "scsi%d : nexus established.\n", instance->host_no);
 	/* XXX need to handle errors here */
 	hostdata->connected = cmd;
-	hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
+	hostdata->busy[cmd->device->id] |= (1 << (cmd->device->lun & 0xFF));
 
 	initialize_SCp(cmd);
 
@@ -2210,14 +2211,14 @@
 				case LINKED_FLG_CMD_COMPLETE:
 					/* Accept message by clearing ACK */
 					NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
-					dprintk(NDEBUG_LINKED, "scsi%d : target %d lun %d linked command complete.\n", instance->host_no, cmd->device->id, cmd->device->lun);
+					dprintk(NDEBUG_LINKED, "scsi%d : target %d lun %llu linked command complete.\n", instance->host_no, cmd->device->id, cmd->device->lun);
 					/* 
 					 * Sanity check : A linked command should only terminate with
 					 * one of these messages if there are more linked commands
 					 * available.
 					 */
 					if (!cmd->next_link) {
-						printk("scsi%d : target %d lun %d linked command complete, no next_link\n" instance->host_no, cmd->device->id, cmd->device->lun);
+					    printk("scsi%d : target %d lun %llu linked command complete, no next_link\n" instance->host_no, cmd->device->id, cmd->device->lun);
 						sink = 1;
 						do_abort(instance);
 						return;
@@ -2226,7 +2227,7 @@
 					/* The next command is still part of this process */
 					cmd->next_link->tag = cmd->tag;
 					cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
-					dprintk(NDEBUG_LINKED, "scsi%d : target %d lun %d linked request done, calling scsi_done().\n", instance->host_no, cmd->device->id, cmd->device->lun);
+					dprintk(NDEBUG_LINKED, "scsi%d : target %d lun %llu linked request done, calling scsi_done().\n", instance->host_no, cmd->device->id, cmd->device->lun);
 					collect_stats(hostdata, cmd);
 					cmd->scsi_done(cmd);
 					cmd = hostdata->connected;
@@ -2238,8 +2239,8 @@
 					sink = 1;
 					NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
 					hostdata->connected = NULL;
-					dprintk(NDEBUG_QUEUES, "scsi%d : command for target %d, lun %d completed\n", instance->host_no, cmd->device->id, cmd->device->lun);
-					hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
+					dprintk(NDEBUG_QUEUES, "scsi%d : command for target %d, lun %llu completed\n", instance->host_no, cmd->device->id, cmd->device->lun);
+					hostdata->busy[cmd->device->id] &= ~(1 << (cmd->device->lun & 0xFF));
 
 					/* 
 					 * I'm not sure what the correct thing to do here is : 
@@ -2304,7 +2305,7 @@
 					case ORDERED_QUEUE_TAG:
 					case SIMPLE_QUEUE_TAG:
 						cmd->device->simple_tags = 0;
-						hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
+						hostdata->busy[cmd->device->id] |= (1 << (cmd->device->lun & 0xFF));
 						break;
 					default:
 						break;
@@ -2318,7 +2319,7 @@
 						    hostdata->disconnected_queue;
 						hostdata->connected = NULL;
 						hostdata->disconnected_queue = cmd;
-						dprintk(NDEBUG_QUEUES, "scsi%d : command for target %d lun %d was moved from connected to" "  the disconnected_queue\n", instance->host_no, cmd->device->id, cmd->device->lun);
+						dprintk(NDEBUG_QUEUES, "scsi%d : command for target %d lun %llu was moved from connected to" "  the disconnected_queue\n", instance->host_no, cmd->device->id, cmd->device->lun);
 						/* 
 						 * Restore phase bits to 0 so an interrupted selection, 
 						 * arbitration can resume.
@@ -2426,7 +2427,7 @@
 				hostdata->last_message = msgout;
 				NCR5380_transfer_pio(instance, &phase, &len, &data);
 				if (msgout == ABORT) {
-					hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
+					hostdata->busy[cmd->device->id] &= ~(1 << (cmd->device->lun & 0xFF));
 					hostdata->connected = NULL;
 					cmd->result = DID_ERROR << 16;
 					collect_stats(hostdata, cmd);
@@ -2562,7 +2563,7 @@
 
 
 		for (tmp = (Scsi_Cmnd *) hostdata->disconnected_queue, prev = NULL; tmp; prev = tmp, tmp = (Scsi_Cmnd *) tmp->host_scribble)
-			if ((target_mask == (1 << tmp->device->id)) && (lun == tmp->device->lun)
+			if ((target_mask == (1 << tmp->device->id)) && (lun == (u8)tmp->device->lun)
 			    ) {
 				if (prev) {
 					REMOVE(prev, prev->host_scribble, tmp, tmp->host_scribble);
@@ -2588,7 +2589,7 @@
 		do_abort(instance);
 	} else {
 		hostdata->connected = tmp;
-		dprintk(NDEBUG_RESELECTION, "scsi%d : nexus established, target = %d, lun = %d, tag = %d\n", instance->host_no, tmp->device->id, tmp->device->lun, tmp->tag);
+		dprintk(NDEBUG_RESELECTION, "scsi%d : nexus established, target = %d, lun = %llu, tag = %d\n", instance->host_no, tmp->device->id, tmp->device->lun, tmp->tag);
 	}
 }
 
diff --git a/drivers/scsi/NCR53c406a.c b/drivers/scsi/NCR53c406a.c
index c91888a..10c3374 100644
--- a/drivers/scsi/NCR53c406a.c
+++ b/drivers/scsi/NCR53c406a.c
@@ -698,7 +698,7 @@
 	int i;
 
 	VDEB(printk("NCR53c406a_queue called\n"));
-	DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n", SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->target, SCpnt->lun, scsi_bufflen(SCpnt)));
+        DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n", SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->device->target, (u8)SCpnt->device->lun, scsi_bufflen(SCpnt)));
 
 #if 0
 	VDEB(for (i = 0; i < SCpnt->cmd_len; i++)
diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c
index 0163457..522570d 100644
--- a/drivers/scsi/a100u2w.c
+++ b/drivers/scsi/a100u2w.c
@@ -891,7 +891,7 @@
 		printk("max cdb length= %x\b", cmd->cmd_len);
 		scb->cdb_len = IMAX_CDB;
 	}
-	scb->ident = cmd->device->lun | DISC_ALLOW;
+	scb->ident = (u8)(cmd->device->lun & 0xff) | DISC_ALLOW;
 	if (cmd->device->tagged_supported) {	/* Tag Support                  */
 		scb->tag_msg = SIMPLE_QUEUE_TAG;	/* Do simple tag only   */
 	} else {
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 4921ed19..63f576c 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -551,7 +551,7 @@
 	int count;
 	int ret = FAILED;
 
-	printk(KERN_ERR "%s: Host adapter abort request (%d,%d,%d,%d)\n",
+	printk(KERN_ERR "%s: Host adapter abort request (%d,%d,%d,%llu)\n",
 		AAC_DRIVERNAME,
 		host->host_no, sdev_channel(dev), sdev_id(dev), dev->lun);
 	switch (cmd->cmnd[0]) {
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index e86eb6a..e77b72f 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -321,7 +321,7 @@
 #define CMDINFO(cmd) \
 			(cmd) ? ((cmd)->device->host->host_no) : -1, \
                         (cmd) ? ((cmd)->device->id & 0x0f) : -1, \
-			(cmd) ? ((cmd)->device->lun & 0x07) : -1
+			(cmd) ? ((u8)(cmd)->device->lun & 0x07) : -1
 
 static inline void
 CMD_INC_RESID(struct scsi_cmnd *cmd, int inc)
@@ -1602,7 +1602,7 @@
 #if defined(AHA152X_DEBUG)
 			int hostno=DONE_SC->device->host->host_no;
 			int id=DONE_SC->device->id & 0xf;
-			int lun=DONE_SC->device->lun & 0x7;
+			int lun=((u8)DONE_SC->device->lun) & 0x7;
 #endif
 			Scsi_Cmnd *ptr = DONE_SC;
 			DONE_SC=NULL;
@@ -2984,7 +2984,7 @@
 	int i;
 
 	SPRINTF("%p: target=%d; lun=%d; cmnd=( ",
-		ptr, ptr->device->id, ptr->device->lun);
+		ptr, ptr->device->id, (u8)ptr->device->lun);
 
 	for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++)
 		SPRINTF("0x%02x ", ptr->cmnd[i]);
diff --git a/drivers/scsi/aic7xxx/aic79xx.h b/drivers/scsi/aic7xxx/aic79xx.h
index 113874c..df2e0e5 100644
--- a/drivers/scsi/aic7xxx/aic79xx.h
+++ b/drivers/scsi/aic7xxx/aic79xx.h
@@ -115,7 +115,7 @@
 #endif
 
 #define AHD_BUILD_COL_IDX(target, lun)				\
-	(((lun) << 4) | target)
+	((((u8)lun) << 4) | target)
 
 #define AHD_GET_SCB_COL_IDX(ahd, scb)				\
 	((SCB_GET_LUN(scb) << 4) | SCB_GET_TARGET(ahd, scb))
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 69d5c43..ed333669 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -2137,7 +2137,7 @@
 	if (do_fallback) {
 		printk("%s: device overrun (status %x) on %d:%d:%d\n",
 		       ahd_name(ahd), status, cmd->device->channel,
-		       cmd->device->id, cmd->device->lun);
+		       cmd->device->id, (u8)cmd->device->lun);
 	}
 
 	ahd_cmd_set_transaction_status(cmd, new_status);
@@ -2253,13 +2253,13 @@
 	disconnected = TRUE;
 	if (ahd_search_qinfifo(ahd, cmd->device->id, 
 			       cmd->device->channel + 'A',
-			       cmd->device->lun, 
+			       cmd->device->lun,
 			       pending_scb->hscb->tag,
 			       ROLE_INITIATOR, CAM_REQ_ABORTED,
 			       SEARCH_COMPLETE) > 0) {
 		printk("%s:%d:%d:%d: Cmd aborted from QINFIFO\n",
 		       ahd_name(ahd), cmd->device->channel, 
-		       cmd->device->id, cmd->device->lun);
+		       cmd->device->id, (u8)cmd->device->lun);
 		retval = SUCCESS;
 		goto done;
 	}
diff --git a/drivers/scsi/aic7xxx/aic79xx_proc.c b/drivers/scsi/aic7xxx/aic79xx_proc.c
index e9778b4..27dbfcc 100644
--- a/drivers/scsi/aic7xxx/aic79xx_proc.c
+++ b/drivers/scsi/aic7xxx/aic79xx_proc.c
@@ -197,7 +197,7 @@
 
 	seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n",
 		  sdev->sdev_target->channel + 'A',
-		  sdev->sdev_target->id, sdev->lun);
+		   sdev->sdev_target->id, (u8)sdev->lun);
 
 	seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued);
 	seq_printf(m, "\t\tCommands Active %d\n", dev->active);
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 114ff0c..d2c9bf3 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -2110,7 +2110,7 @@
 		 */
 		printk("%s:%d:%d:%d: Is not an active device\n",
 		       ahc_name(ahc), cmd->device->channel, cmd->device->id,
-		       cmd->device->lun);
+		       (u8)cmd->device->lun);
 		retval = SUCCESS;
 		goto no_cmd;
 	}
@@ -2118,11 +2118,11 @@
 	if ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED)) == 0
 	 && ahc_search_untagged_queues(ahc, cmd, cmd->device->id,
 				       cmd->device->channel + 'A',
-				       cmd->device->lun,
+				       (u8)cmd->device->lun,
 				       CAM_REQ_ABORTED, SEARCH_COMPLETE) != 0) {
 		printk("%s:%d:%d:%d: Command found on untagged queue\n",
 		       ahc_name(ahc), cmd->device->channel, cmd->device->id,
-		       cmd->device->lun);
+		       (u8)cmd->device->lun);
 		retval = SUCCESS;
 		goto done;
 	}
@@ -2188,13 +2188,14 @@
 				       SEARCH_COMPLETE) > 0) {
 			printk("%s:%d:%d:%d: Cmd aborted from QINFIFO\n",
 			       ahc_name(ahc), cmd->device->channel,
-					cmd->device->id, cmd->device->lun);
+			       cmd->device->id, (u8)cmd->device->lun);
 			retval = SUCCESS;
 			goto done;
 		}
 	} else if (ahc_search_qinfifo(ahc, cmd->device->id,
 				      cmd->device->channel + 'A',
-				      cmd->device->lun, pending_scb->hscb->tag,
+				      cmd->device->lun,
+				      pending_scb->hscb->tag,
 				      ROLE_INITIATOR, /*status*/0,
 				      SEARCH_COUNT) > 0) {
 		disconnected = FALSE;
diff --git a/drivers/scsi/aic7xxx/aic7xxx_proc.c b/drivers/scsi/aic7xxx/aic7xxx_proc.c
index 383a3d1..64eec6c 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_proc.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_proc.c
@@ -175,7 +175,7 @@
 
 	seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n",
 		  sdev->sdev_target->channel + 'A',
-		  sdev->sdev_target->id, sdev->lun);
+		   sdev->sdev_target->id, (u8)sdev->lun);
 
 	seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued);
 	seq_printf(m, "\t\tCommands Active %d\n", dev->active);
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 652b41b..b13764c 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -2335,7 +2335,7 @@
 					" poll command abort successfully \n"
 					, acb->host->host_no
 					, ccb->pcmd->device->id
-					, ccb->pcmd->device->lun
+					, (u32)ccb->pcmd->device->lun
 					, ccb);
 				ccb->pcmd->result = DID_ABORT << 16;
 				arcmsr_ccb_complete(ccb);
@@ -2399,7 +2399,7 @@
 					" poll command abort successfully \n"
 					,acb->host->host_no
 					,ccb->pcmd->device->id
-					,ccb->pcmd->device->lun
+					,(u32)ccb->pcmd->device->lun
 					,ccb);
 				ccb->pcmd->result = DID_ABORT << 16;
 				arcmsr_ccb_complete(ccb);
@@ -2456,7 +2456,7 @@
 					" poll command abort successfully \n"
 					, acb->host->host_no
 					, pCCB->pcmd->device->id
-					, pCCB->pcmd->device->lun
+					, (u32)pCCB->pcmd->device->lun
 					, pCCB);
 					pCCB->pcmd->result = DID_ABORT << 16;
 					arcmsr_ccb_complete(pCCB);
@@ -3058,7 +3058,7 @@
 	int rtn = FAILED;
 	printk(KERN_NOTICE
 		"arcmsr%d: abort device command of scsi id = %d lun = %d \n",
-		acb->host->host_no, cmd->device->id, cmd->device->lun);
+		acb->host->host_no, cmd->device->id, (u32)cmd->device->lun);
 	acb->acb_flags |= ACB_F_ABORT;
 	acb->num_aborts++;
 	/*
diff --git a/drivers/scsi/arm/acornscsi.c b/drivers/scsi/arm/acornscsi.c
index 2e797a3..d89b9b4 100644
--- a/drivers/scsi/arm/acornscsi.c
+++ b/drivers/scsi/arm/acornscsi.c
@@ -760,7 +760,8 @@
 	    SCpnt->tag = SCpnt->device->current_tag;
 	} else
 #endif
-	    set_bit(SCpnt->device->id * 8 + SCpnt->device->lun, host->busyluns);
+	    set_bit(SCpnt->device->id * 8 +
+		    (u8)(SCpnt->device->lun & 0x07), host->busyluns);
 
 	host->stats.removes += 1;
 
@@ -863,7 +864,8 @@
 	if (!SCpnt->scsi_done)
 	    panic("scsi%d.H: null scsi_done function in acornscsi_done", host->host->host_no);
 
-	clear_bit(SCpnt->device->id * 8 + SCpnt->device->lun, host->busyluns);
+	clear_bit(SCpnt->device->id * 8 +
+		  (u8)(SCpnt->device->lun & 0x7), host->busyluns);
 
 	SCpnt->scsi_done(SCpnt);
     } else
@@ -1576,7 +1578,8 @@
 	    printk(KERN_NOTICE "scsi%d.%c: disabling tagged queueing\n",
 		    host->host->host_no, acornscsi_target(host));
 	    host->SCpnt->device->simple_tags = 0;
-	    set_bit(host->SCpnt->device->id * 8 + host->SCpnt->device->lun, host->busyluns);
+	    set_bit(host->SCpnt->device->id * 8 +
+		    (u8)(host->SCpnt->device->lun & 0x7), host->busyluns);
 	    break;
 #endif
 	case EXTENDED_MESSAGE | (EXTENDED_SDTR << 8):
@@ -2671,7 +2674,8 @@
 //#if (DEBUG & DEBUG_ABORT)
 		printk("clear ");
 //#endif
-		clear_bit(SCpnt->device->id * 8 + SCpnt->device->lun, host->busyluns);
+		clear_bit(SCpnt->device->id * 8 +
+			  (u8)(SCpnt->device->lun & 0x7), host->busyluns);
 
 	/*
 	 * We found the command, and cleared it out.  Either
@@ -2853,7 +2857,7 @@
 
     shost_for_each_device(scd, instance) {
 	seq_printf(m, "Device/Lun TaggedQ      Sync\n");
-	seq_printf(m, "     %d/%d   ", scd->id, scd->lun);
+	seq_printf(m, "     %d/%llu   ", scd->id, scd->lun);
 	if (scd->tagged_supported)
 		seq_printf(m, "%3sabled(%3d) ",
 			     scd->simple_tags ? "en" : "dis",
diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c
index b46a6f6..71cfb1e 100644
--- a/drivers/scsi/arm/fas216.c
+++ b/drivers/scsi/arm/fas216.c
@@ -1821,7 +1821,8 @@
 			SCpnt->tag = SCpnt->device->current_tag;
 	} else
 #endif
-		set_bit(SCpnt->device->id * 8 + SCpnt->device->lun, info->busyluns);
+		set_bit(SCpnt->device->id * 8 +
+			(u8)(SCpnt->device->lun & 0x7), info->busyluns);
 
 	info->stats.removes += 1;
 	switch (SCpnt->cmnd[0]) {
@@ -2171,7 +2172,8 @@
 	 * status.
 	 */
 	info->device[SCpnt->device->id].parity_check = 0;
-	clear_bit(SCpnt->device->id * 8 + SCpnt->device->lun, info->busyluns);
+	clear_bit(SCpnt->device->id * 8 +
+		  (u8)(SCpnt->device->lun & 0x7), info->busyluns);
 
 	fn = (void (*)(FAS216_Info *, struct scsi_cmnd *, unsigned int))SCpnt->host_scribble;
 	fn(info, SCpnt, result);
@@ -2398,7 +2400,8 @@
 		 * been set.
 		 */
 		info->origSCpnt = NULL;
-		clear_bit(SCpnt->device->id * 8 + SCpnt->device->lun, info->busyluns);
+		clear_bit(SCpnt->device->id * 8 +
+			  (u8)(SCpnt->device->lun & 0x7), info->busyluns);
 		printk("waiting for execution ");
 		res = res_success;
 	} else
@@ -3000,7 +3003,7 @@
 
 	shost_for_each_device(scd, info->host) {
 		dev = &info->device[scd->id];
-		seq_printf(m, "     %d/%d   ", scd->id, scd->lun);
+		seq_printf(m, "     %d/%llu   ", scd->id, scd->lun);
 		if (scd->tagged_supported)
 			seq_printf(m, "%3sabled(%3d) ",
 				     scd->simple_tags ? "en" : "dis",
diff --git a/drivers/scsi/arm/queue.c b/drivers/scsi/arm/queue.c
index cb11cce..3441ce3 100644
--- a/drivers/scsi/arm/queue.c
+++ b/drivers/scsi/arm/queue.c
@@ -167,7 +167,8 @@
 	spin_lock_irqsave(&queue->queue_lock, flags);
 	list_for_each(l, &queue->head) {
 		QE_t *q = list_entry(l, QE_t, list);
-		if (!test_bit(q->SCpnt->device->id * 8 + q->SCpnt->device->lun, exclude)) {
+		if (!test_bit(q->SCpnt->device->id * 8 +
+			      (u8)(q->SCpnt->device->lun & 0x7), exclude)) {
 			SCpnt = __queue_remove(queue, l);
 			break;
 		}
diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c
index 1814aa2..79e6f04 100644
--- a/drivers/scsi/atari_NCR5380.c
+++ b/drivers/scsi/atari_NCR5380.c
@@ -361,17 +361,18 @@
 
 static int is_lun_busy(Scsi_Cmnd *cmd, int should_be_tagged)
 {
+	u8 lun = cmd->device->lun;
 	SETUP_HOSTDATA(cmd->device->host);
 
-	if (hostdata->busy[cmd->device->id] & (1 << cmd->device->lun))
+	if (hostdata->busy[cmd->device->id] & (1 << lun))
 		return 1;
 	if (!should_be_tagged ||
 	    !setup_use_tagged_queuing || !cmd->device->tagged_supported)
 		return 0;
-	if (TagAlloc[cmd->device->id][cmd->device->lun].nr_allocated >=
-	    TagAlloc[cmd->device->id][cmd->device->lun].queue_size) {
+	if (TagAlloc[cmd->device->id][lun].nr_allocated >=
+	    TagAlloc[cmd->device->id][lun].queue_size) {
 		dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %d: no free tags\n",
-			   H_NO(cmd), cmd->device->id, cmd->device->lun);
+			   H_NO(cmd), cmd->device->id, lun);
 		return 1;
 	}
 	return 0;
@@ -385,6 +386,7 @@
 
 static void cmd_get_tag(Scsi_Cmnd *cmd, int should_be_tagged)
 {
+	u8 lun = cmd->device->lun;
 	SETUP_HOSTDATA(cmd->device->host);
 
 	/* If we or the target don't support tagged queuing, allocate the LUN for
@@ -393,11 +395,11 @@
 	if (!should_be_tagged ||
 	    !setup_use_tagged_queuing || !cmd->device->tagged_supported) {
 		cmd->tag = TAG_NONE;
-		hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
+		hostdata->busy[cmd->device->id] |= (1 << lun);
 		dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %d now allocated by untagged "
-			   "command\n", H_NO(cmd), cmd->device->id, cmd->device->lun);
+			   "command\n", H_NO(cmd), cmd->device->id, lun);
 	} else {
-		TAG_ALLOC *ta = &TagAlloc[cmd->device->id][cmd->device->lun];
+		TAG_ALLOC *ta = &TagAlloc[cmd->device->id][lun];
 
 		cmd->tag = find_first_zero_bit(ta->allocated, MAX_TAGS);
 		set_bit(cmd->tag, ta->allocated);
@@ -405,7 +407,7 @@
 		dprintk(NDEBUG_TAGS, "scsi%d: using tag %d for target %d lun %d "
 			   "(now %d tags in use)\n",
 			   H_NO(cmd), cmd->tag, cmd->device->id,
-			   cmd->device->lun, ta->nr_allocated);
+			   lun, ta->nr_allocated);
 	}
 }
 
@@ -416,21 +418,22 @@
 
 static void cmd_free_tag(Scsi_Cmnd *cmd)
 {
+	u8 lun = cmd->device->lun;
 	SETUP_HOSTDATA(cmd->device->host);
 
 	if (cmd->tag == TAG_NONE) {
-		hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
+		hostdata->busy[cmd->device->id] &= ~(1 << lun);
 		dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %d untagged cmd finished\n",
-			   H_NO(cmd), cmd->device->id, cmd->device->lun);
+			   H_NO(cmd), cmd->device->id, lun);
 	} else if (cmd->tag >= MAX_TAGS) {
 		printk(KERN_NOTICE "scsi%d: trying to free bad tag %d!\n",
 		       H_NO(cmd), cmd->tag);
 	} else {
-		TAG_ALLOC *ta = &TagAlloc[cmd->device->id][cmd->device->lun];
+		TAG_ALLOC *ta = &TagAlloc[cmd->device->id][lun];
 		clear_bit(cmd->tag, ta->allocated);
 		ta->nr_allocated--;
 		dprintk(NDEBUG_TAGS, "scsi%d: freed tag %d for target %d lun %d\n",
-			   H_NO(cmd), cmd->tag, cmd->device->id, cmd->device->lun);
+			   H_NO(cmd), cmd->tag, cmd->device->id, lun);
 	}
 }
 
@@ -713,7 +716,7 @@
 {
 	int i, s;
 	unsigned char *command;
-	printk("scsi%d: destination target %d, lun %d\n",
+	printk("scsi%d: destination target %d, lun %llu\n",
 		H_NO(cmd), cmd->device->id, cmd->device->lun);
 	printk(KERN_CONT "        command = ");
 	command = cmd->cmnd;
@@ -759,7 +762,7 @@
 {
 	int i, s;
 	unsigned char *command;
-	seq_printf(m, "scsi%d: destination target %d, lun %d\n",
+	seq_printf(m, "scsi%d: destination target %d, lun %llu\n",
 		H_NO(cmd), cmd->device->id, cmd->device->lun);
 	seq_printf(m, "        command = ");
 	command = cmd->cmnd;
@@ -1060,12 +1063,13 @@
 #endif
 			for (tmp = (Scsi_Cmnd *) hostdata->issue_queue,
 			     prev = NULL; tmp; prev = tmp, tmp = NEXT(tmp)) {
+				u8 lun = tmp->device->lun;
 
 #if (NDEBUG & NDEBUG_LISTS)
 				if (prev != tmp)
-					printk("MAIN tmp=%p   target=%d   busy=%d lun=%d\n",
+					printk("MAIN tmp=%p   target=%d   busy=%d lun=%llu\n",
 					       tmp, tmp->device->id, hostdata->busy[tmp->device->id],
-					       tmp->device->lun);
+					       lun);
 #endif
 				/*  When we find one, remove it from the issue queue. */
 				/* ++guenther: possible race with Falcon locking */
@@ -1073,7 +1077,7 @@
 #ifdef SUPPORT_TAGS
 				    !is_lun_busy( tmp, tmp->cmnd[0] != REQUEST_SENSE)
 #else
-				    !(hostdata->busy[tmp->device->id] & (1 << tmp->device->lun))
+				    !(hostdata->busy[tmp->device->id] & (1 << lun))
 #endif
 				    ) {
 					/* ++guenther: just to be sure, this must be atomic */
@@ -1099,7 +1103,7 @@
 					 */
 					dprintk(NDEBUG_MAIN, "scsi%d: main(): command for target %d "
 						    "lun %d removed from issue_queue\n",
-						    HOSTNO, tmp->device->id, tmp->device->lun);
+						    HOSTNO, tmp->device->id, lun);
 					/*
 					 * REQUEST SENSE commands are issued without tagged
 					 * queueing, even on SCSI-II devices because the
@@ -2061,7 +2065,7 @@
 						 * accesses to this device will use the
 						 * polled-IO. */
 						printk(KERN_NOTICE "scsi%d: switching target %d "
-							   "lun %d to slow handshake\n", HOSTNO,
+							   "lun %llu to slow handshake\n", HOSTNO,
 							   cmd->device->id, cmd->device->lun);
 						cmd->device->borken = 1;
 						NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE |
@@ -2113,7 +2117,7 @@
 					/* Accept message by clearing ACK */
 					NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
 
-					dprintk(NDEBUG_LINKED, "scsi%d: target %d lun %d linked command "
+					dprintk(NDEBUG_LINKED, "scsi%d: target %d lun %llu linked command "
 						   "complete.\n", HOSTNO, cmd->device->id, cmd->device->lun);
 
 					/* Enable reselect interrupts */
@@ -2125,7 +2129,7 @@
 					 */
 
 					if (!cmd->next_link) {
-						 printk(KERN_NOTICE "scsi%d: target %d lun %d "
+						 printk(KERN_NOTICE "scsi%d: target %d lun %llu "
 							"linked command complete, no next_link\n",
 							HOSTNO, cmd->device->id, cmd->device->lun);
 						sink = 1;
@@ -2138,7 +2142,7 @@
 					 * and don't free it! */
 					cmd->next_link->tag = cmd->tag;
 					cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
-					dprintk(NDEBUG_LINKED, "scsi%d: target %d lun %d linked request "
+					dprintk(NDEBUG_LINKED, "scsi%d: target %d lun %llu linked request "
 						   "done, calling scsi_done().\n",
 						   HOSTNO, cmd->device->id, cmd->device->lun);
 #ifdef NCR5380_STATS
@@ -2155,7 +2159,7 @@
 					/* ++guenther: possible race with Falcon locking */
 					falcon_dont_release++;
 					hostdata->connected = NULL;
-					dprintk(NDEBUG_QUEUES, "scsi%d: command for target %d, lun %d "
+					dprintk(NDEBUG_QUEUES, "scsi%d: command for target %d, lun %llu "
 						  "completed\n", HOSTNO, cmd->device->id, cmd->device->lun);
 #ifdef SUPPORT_TAGS
 					cmd_free_tag(cmd);
@@ -2169,7 +2173,7 @@
 						/* ++Andreas: the mid level code knows about
 						   QUEUE_FULL now. */
 						TAG_ALLOC *ta = &TagAlloc[cmd->device->id][cmd->device->lun];
-						dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %d returned "
+						dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %llu returned "
 							   "QUEUE_FULL after %d commands\n",
 							   HOSTNO, cmd->device->id, cmd->device->lun,
 							   ta->nr_allocated);
@@ -2267,7 +2271,7 @@
 						cmd->device->tagged_supported = 0;
 						hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
 						cmd->tag = TAG_NONE;
-						dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %d rejected "
+						dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %llu rejected "
 							   "QUEUE_TAG message; tagged queuing "
 							   "disabled\n",
 							   HOSTNO, cmd->device->id, cmd->device->lun);
@@ -2284,7 +2288,7 @@
 					hostdata->connected = NULL;
 					hostdata->disconnected_queue = cmd;
 					local_irq_restore(flags);
-					dprintk(NDEBUG_QUEUES, "scsi%d: command for target %d lun %d was "
+					dprintk(NDEBUG_QUEUES, "scsi%d: command for target %d lun %llu was "
 						  "moved from connected to the "
 						  "disconnected_queue\n", HOSTNO,
 						  cmd->device->id, cmd->device->lun);
@@ -2385,12 +2389,12 @@
 						printk("\n");
 					} else if (tmp != EXTENDED_MESSAGE)
 						printk(KERN_DEBUG "scsi%d: rejecting unknown "
-						       "message %02x from target %d, lun %d\n",
+						       "message %02x from target %d, lun %llu\n",
 						       HOSTNO, tmp, cmd->device->id, cmd->device->lun);
 					else
 						printk(KERN_DEBUG "scsi%d: rejecting unknown "
 						       "extended message "
-						       "code %02x, length %d from target %d, lun %d\n",
+						       "code %02x, length %d from target %d, lun %llu\n",
 						       HOSTNO, extended_msg[1], extended_msg[0],
 						       cmd->device->id, cmd->device->lun);
 
@@ -2588,7 +2592,7 @@
 	NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
 
 	hostdata->connected = tmp;
-	dprintk(NDEBUG_RESELECTION, "scsi%d: nexus established, target = %d, lun = %d, tag = %d\n",
+	dprintk(NDEBUG_RESELECTION, "scsi%d: nexus established, target = %d, lun = %llu, tag = %d\n",
 		   HOSTNO, tmp->device->id, tmp->device->lun, tmp->tag);
 	falcon_dont_release--;
 }
diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
index 7bc47fc..e0bb209 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_io.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -1450,9 +1450,9 @@
 	struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
 	struct bnx2fc_rport *tgt = io_req->tgt;
 	struct bnx2fc_cmd *cmd, *tmp;
-	int tm_lun = sc_cmd->device->lun;
+	u64 tm_lun = sc_cmd->device->lun;
+	u64 lun;
 	int rc = 0;
-	int lun;
 
 	/* called with tgt_lock held */
 	BNX2FC_IO_DBG(io_req, "Entered bnx2fc_lun_reset_cmpl\n");
diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index 2a32374..7e952ca 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -247,7 +247,7 @@
  retry:
 	memset(cmd,0,sizeof(cmd));
 	cmd[0] = READ_ELEMENT_STATUS;
-	cmd[1] = (ch->device->lun << 5) |
+	cmd[1] = ((ch->device->lun & 0x7) << 5) |
 		(ch->voltags ? 0x10 : 0) |
 		ch_elem_to_typecode(ch,elem);
 	cmd[2] = (elem >> 8) & 0xff;
@@ -283,7 +283,7 @@
 	VPRINTK(KERN_INFO, "INITIALIZE ELEMENT STATUS, may take some time ...\n");
 	memset(cmd,0,sizeof(cmd));
 	cmd[0] = INITIALIZE_ELEMENT_STATUS;
-	cmd[1] = ch->device->lun << 5;
+	cmd[1] = (ch->device->lun & 0x7) << 5;
 	err = ch_do_scsi(ch, cmd, NULL, 0, DMA_NONE);
 	VPRINTK(KERN_INFO, "... finished\n");
 	return err;
@@ -303,7 +303,7 @@
 
 	memset(cmd,0,sizeof(cmd));
 	cmd[0] = MODE_SENSE;
-	cmd[1] = ch->device->lun << 5;
+	cmd[1] = (ch->device->lun & 0x7) << 5;
 	cmd[2] = 0x1d;
 	cmd[4] = 255;
 	result = ch_do_scsi(ch, cmd, buffer, 255, DMA_FROM_DEVICE);
@@ -428,7 +428,7 @@
 		trans = ch->firsts[CHET_MT];
 	memset(cmd,0,sizeof(cmd));
 	cmd[0]  = POSITION_TO_ELEMENT;
-	cmd[1]  = ch->device->lun << 5;
+	cmd[1]  = (ch->device->lun & 0x7) << 5;
 	cmd[2]  = (trans >> 8) & 0xff;
 	cmd[3]  =  trans       & 0xff;
 	cmd[4]  = (elem  >> 8) & 0xff;
@@ -447,7 +447,7 @@
 		trans = ch->firsts[CHET_MT];
 	memset(cmd,0,sizeof(cmd));
 	cmd[0]  = MOVE_MEDIUM;
-	cmd[1]  = ch->device->lun << 5;
+	cmd[1]  = (ch->device->lun & 0x7) << 5;
 	cmd[2]  = (trans >> 8) & 0xff;
 	cmd[3]  =  trans       & 0xff;
 	cmd[4]  = (src   >> 8) & 0xff;
@@ -470,7 +470,7 @@
 		trans = ch->firsts[CHET_MT];
 	memset(cmd,0,sizeof(cmd));
 	cmd[0]  = EXCHANGE_MEDIUM;
-	cmd[1]  = ch->device->lun << 5;
+	cmd[1]  = (ch->device->lun & 0x7) << 5;
 	cmd[2]  = (trans >> 8) & 0xff;
 	cmd[3]  =  trans       & 0xff;
 	cmd[4]  = (src   >> 8) & 0xff;
@@ -518,7 +518,7 @@
 		elem, tag);
 	memset(cmd,0,sizeof(cmd));
 	cmd[0]  = SEND_VOLUME_TAG;
-	cmd[1] = (ch->device->lun << 5) |
+	cmd[1] = ((ch->device->lun & 0x7) << 5) |
 		ch_elem_to_typecode(ch,elem);
 	cmd[2] = (elem >> 8) & 0xff;
 	cmd[3] = elem        & 0xff;
@@ -754,7 +754,7 @@
 	voltag_retry:
 		memset(ch_cmd, 0, sizeof(ch_cmd));
 		ch_cmd[0] = READ_ELEMENT_STATUS;
-		ch_cmd[1] = (ch->device->lun << 5) |
+		ch_cmd[1] = ((ch->device->lun & 0x7) << 5) |
 			(ch->voltags ? 0x10 : 0) |
 			ch_elem_to_typecode(ch,elem);
 		ch_cmd[2] = (elem >> 8) & 0xff;
diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c
index 7494e4b..86103c8 100644
--- a/drivers/scsi/csiostor/csio_scsi.c
+++ b/drivers/scsi/csiostor/csio_scsi.c
@@ -1657,7 +1657,7 @@
 	case FW_SCSI_UNDER_FLOW_ERR:
 		csio_warn(hw,
 			  "Under-flow error,cmnd:0x%x expected"
-			  " len:0x%x resid:0x%x lun:0x%x ssn:0x%x\n",
+			  " len:0x%x resid:0x%x lun:0x%llx ssn:0x%x\n",
 			  cmnd->cmnd[0], scsi_bufflen(cmnd),
 			  scsi_get_resid(cmnd), cmnd->device->lun,
 			  rn->flowid);
@@ -1957,7 +1957,7 @@
 
 	csio_dbg(hw,
 		 "Request to abort ioreq:%p cmd:%p cdb:%08llx"
-		 " ssni:0x%x lun:%d iq:0x%x\n",
+		 " ssni:0x%x lun:%llu iq:0x%x\n",
 		ioreq, cmnd, *((uint64_t *)cmnd->cmnd), rn->flowid,
 		cmnd->device->lun, csio_q_physiqid(hw, ioreq->iq_idx));
 
@@ -2015,13 +2015,13 @@
 	/* FW successfully aborted the request */
 	if (host_byte(cmnd->result) == DID_REQUEUE) {
 		csio_info(hw,
-			"Aborted SCSI command to (%d:%d) serial#:0x%lx\n",
+			"Aborted SCSI command to (%d:%llu) serial#:0x%lx\n",
 			cmnd->device->id, cmnd->device->lun,
 			cmnd->serial_number);
 		return SUCCESS;
 	} else {
 		csio_info(hw,
-			"Failed to abort SCSI command, (%d:%d) serial#:0x%lx\n",
+			"Failed to abort SCSI command, (%d:%llu) serial#:0x%lx\n",
 			cmnd->device->id, cmnd->device->lun,
 			cmnd->serial_number);
 		return FAILED;
@@ -2100,13 +2100,13 @@
 	if (!rn)
 		goto fail;
 
-	csio_dbg(hw, "Request to reset LUN:%d (ssni:0x%x tgtid:%d)\n",
+	csio_dbg(hw, "Request to reset LUN:%llu (ssni:0x%x tgtid:%d)\n",
 		      cmnd->device->lun, rn->flowid, rn->scsi_id);
 
 	if (!csio_is_lnode_ready(ln)) {
 		csio_err(hw,
 			 "LUN reset cannot be issued on non-ready"
-			 " local node vnpi:0x%x (LUN:%d)\n",
+			 " local node vnpi:0x%x (LUN:%llu)\n",
 			 ln->vnp_flowid, cmnd->device->lun);
 		goto fail;
 	}
@@ -2126,7 +2126,7 @@
 	if (fc_remote_port_chkready(rn->rport)) {
 		csio_err(hw,
 			 "LUN reset cannot be issued on non-ready"
-			 " remote node ssni:0x%x (LUN:%d)\n",
+			 " remote node ssni:0x%x (LUN:%llu)\n",
 			 rn->flowid, cmnd->device->lun);
 		goto fail;
 	}
@@ -2168,7 +2168,7 @@
 	sld.level = CSIO_LEV_LUN;
 	sld.lnode = ioreq->lnode;
 	sld.rnode = ioreq->rnode;
-	sld.oslun = (uint64_t)cmnd->device->lun;
+	sld.oslun = cmnd->device->lun;
 
 	spin_lock_irqsave(&hw->lock, flags);
 	/* Kick off TM SM on the ioreq */
@@ -2190,7 +2190,7 @@
 
 	/* LUN reset timed-out */
 	if (((struct scsi_cmnd *)csio_scsi_cmnd(ioreq)) == cmnd) {
-		csio_err(hw, "LUN reset (%d:%d) timed out\n",
+		csio_err(hw, "LUN reset (%d:%llu) timed out\n",
 			 cmnd->device->id, cmnd->device->lun);
 
 		spin_lock_irq(&hw->lock);
@@ -2203,7 +2203,7 @@
 
 	/* LUN reset returned, check cached status */
 	if (cmnd->SCp.Status != FW_SUCCESS) {
-		csio_err(hw, "LUN reset failed (%d:%d), status: %d\n",
+		csio_err(hw, "LUN reset failed (%d:%llu), status: %d\n",
 			 cmnd->device->id, cmnd->device->lun, cmnd->SCp.Status);
 		goto fail;
 	}
@@ -2223,7 +2223,7 @@
 	/* Aborts may have timed out */
 	if (retval != 0) {
 		csio_err(hw,
-			 "Attempt to abort I/Os during LUN reset of %d"
+			 "Attempt to abort I/Os during LUN reset of %llu"
 			 " returned %d\n", cmnd->device->lun, retval);
 		/* Return I/Os back to active_q */
 		spin_lock_irq(&hw->lock);
@@ -2234,7 +2234,7 @@
 
 	CSIO_INC_STATS(rn, n_lun_rst);
 
-	csio_info(hw, "LUN reset occurred (%d:%d)\n",
+	csio_info(hw, "LUN reset occurred (%d:%llu)\n",
 		  cmnd->device->id, cmnd->device->lun);
 
 	return SUCCESS;
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index ad7bee0..dff461f 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -1087,7 +1087,7 @@
 	struct AdapterCtlBlk *acb =
 	    (struct AdapterCtlBlk *)cmd->device->host->hostdata;
 	dprintkdbg(DBG_0, "queue_command: (0x%p) <%02i-%i> cmnd=0x%02x\n",
-		cmd, cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
+		cmd, cmd->device->id, (u8)cmd->device->lun, cmd->cmnd[0]);
 
 	/* Assume BAD_TARGET; will be cleared later */
 	cmd->result = DID_BAD_TARGET << 16;
@@ -1102,7 +1102,7 @@
 	/* does the specified lun on the specified device exist */
 	if (!(acb->dcb_map[cmd->device->id] & (1 << cmd->device->lun))) {
 		dprintkl(KERN_INFO, "queue_command: Ignore target <%02i-%i>\n",
-			cmd->device->id, cmd->device->lun);
+			cmd->device->id, (u8)cmd->device->lun);
 		goto complete;
 	}
 
@@ -1111,7 +1111,7 @@
 	if (!dcb) {
 		/* should never happen */
 		dprintkl(KERN_ERR, "queue_command: No such device <%02i-%i>",
-			cmd->device->id, cmd->device->lun);
+			cmd->device->id, (u8)cmd->device->lun);
 		goto complete;
 	}
 
@@ -1207,7 +1207,7 @@
 				 "cmnd=0x%02x <%02i-%i>\n",
 				srb, srb->cmd,
 				srb->cmd->cmnd[0], srb->cmd->device->id,
-			       	srb->cmd->device->lun);
+				(u8)srb->cmd->device->lun);
 		printk("  sglist=%p cnt=%i idx=%i len=%zu\n",
 		       srb->segment_x, srb->sg_count, srb->sg_index,
 		       srb->total_xfer_length);
@@ -1302,7 +1302,7 @@
 		(struct AdapterCtlBlk *)cmd->device->host->hostdata;
 	dprintkl(KERN_INFO,
 		"eh_bus_reset: (0%p) target=<%02i-%i> cmd=%p\n",
-		cmd, cmd->device->id, cmd->device->lun, cmd);
+		cmd, cmd->device->id, (u8)cmd->device->lun, cmd);
 
 	if (timer_pending(&acb->waiting_timer))
 		del_timer(&acb->waiting_timer);
@@ -1369,7 +1369,7 @@
 	struct DeviceCtlBlk *dcb;
 	struct ScsiReqBlk *srb;
 	dprintkl(KERN_INFO, "eh_abort: (0x%p) target=<%02i-%i> cmd=%p\n",
-		cmd, cmd->device->id, cmd->device->lun, cmd);
+		cmd, cmd->device->id, (u8)cmd->device->lun, cmd);
 
 	dcb = find_dcb(acb, cmd->device->id, cmd->device->lun);
 	if (!dcb) {
@@ -1605,7 +1605,7 @@
 			dprintkl(KERN_WARNING, "start_scsi: (0x%p) "
 				"Out of tags target=<%02i-%i>)\n",
 				srb->cmd, srb->cmd->device->id,
-				srb->cmd->device->lun);
+				(u8)srb->cmd->device->lun);
 			srb->state = SRB_READY;
 			DC395x_write16(acb, TRM_S1040_SCSI_CONTROL,
 				       DO_HWRESELECT);
@@ -1623,7 +1623,7 @@
 /*polling:*/
 	/* Send CDB ..command block ......... */
 	dprintkdbg(DBG_KG, "start_scsi: (0x%p) <%02i-%i> cmnd=0x%02x tag=%i\n",
-		srb->cmd, srb->cmd->device->id, srb->cmd->device->lun,
+		srb->cmd, srb->cmd->device->id, (u8)srb->cmd->device->lun,
 		srb->cmd->cmnd[0], srb->tag_number);
 	if (srb->flag & AUTO_REQSENSE) {
 		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, REQUEST_SENSE);
@@ -2041,7 +2041,7 @@
 	u16 scsi_status = *pscsi_status;
 	u32 d_left_counter = 0;
 	dprintkdbg(DBG_0, "data_out_phase0: (0x%p) <%02i-%i>\n",
-		srb->cmd, srb->cmd->device->id, srb->cmd->device->lun);
+		srb->cmd, srb->cmd->device->id, (u8)srb->cmd->device->lun);
 
 	/*
 	 * KG: We need to drain the buffers before we draw any conclusions!
@@ -2171,7 +2171,7 @@
 		u16 *pscsi_status)
 {
 	dprintkdbg(DBG_0, "data_out_phase1: (0x%p) <%02i-%i>\n",
-		srb->cmd, srb->cmd->device->id, srb->cmd->device->lun);
+		srb->cmd, srb->cmd->device->id, (u8)srb->cmd->device->lun);
 	clear_fifo(acb, "data_out_phase1");
 	/* do prepare before transfer when data out phase */
 	data_io_transfer(acb, srb, XFERDATAOUT);
@@ -2183,7 +2183,7 @@
 	u16 scsi_status = *pscsi_status;
 
 	dprintkdbg(DBG_0, "data_in_phase0: (0x%p) <%02i-%i>\n",
-		srb->cmd, srb->cmd->device->id, srb->cmd->device->lun);
+		srb->cmd, srb->cmd->device->id, (u8)srb->cmd->device->lun);
 
 	/*
 	 * KG: DataIn is much more tricky than DataOut. When the device is finished
@@ -2394,7 +2394,7 @@
 		u16 *pscsi_status)
 {
 	dprintkdbg(DBG_0, "data_in_phase1: (0x%p) <%02i-%i>\n",
-		srb->cmd, srb->cmd->device->id, srb->cmd->device->lun);
+		srb->cmd, srb->cmd->device->id, (u8)srb->cmd->device->lun);
 	data_io_transfer(acb, srb, XFERDATAIN);
 }
 
@@ -2406,7 +2406,7 @@
 	u8 bval;
 	dprintkdbg(DBG_0,
 		"data_io_transfer: (0x%p) <%02i-%i> %c len=%i, sg=(%i/%i)\n",
-		srb->cmd, srb->cmd->device->id, srb->cmd->device->lun,
+		srb->cmd, srb->cmd->device->id, (u8)srb->cmd->device->lun,
 		((io_dir & DMACMD_DIR) ? 'r' : 'w'),
 		srb->total_xfer_length, srb->sg_index, srb->sg_count);
 	if (srb == acb->tmp_srb)
@@ -2579,7 +2579,7 @@
 		u16 *pscsi_status)
 {
 	dprintkdbg(DBG_0, "status_phase0: (0x%p) <%02i-%i>\n",
-		srb->cmd, srb->cmd->device->id, srb->cmd->device->lun);
+		srb->cmd, srb->cmd->device->id, (u8)srb->cmd->device->lun);
 	srb->target_status = DC395x_read8(acb, TRM_S1040_SCSI_FIFO);
 	srb->end_message = DC395x_read8(acb, TRM_S1040_SCSI_FIFO);	/* get message */
 	srb->state = SRB_COMPLETED;
@@ -2593,7 +2593,7 @@
 		u16 *pscsi_status)
 {
 	dprintkdbg(DBG_0, "status_phase1: (0x%p) <%02i-%i>\n",
-		srb->cmd, srb->cmd->device->id, srb->cmd->device->lun);
+		srb->cmd, srb->cmd->device->id, (u8)srb->cmd->device->lun);
 	srb->state = SRB_STATUS;
 	DC395x_write16(acb, TRM_S1040_SCSI_CONTROL, DO_DATALATCH);	/* it's important for atn stop */
 	DC395x_write8(acb, TRM_S1040_SCSI_COMMAND, SCMD_COMP);
@@ -3318,7 +3318,7 @@
 	int ckc_only = 1;
 
 	dprintkdbg(DBG_1, "srb_done: (0x%p) <%02i-%i>\n", srb->cmd,
-		srb->cmd->device->id, srb->cmd->device->lun);
+		srb->cmd->device->id, (u8)srb->cmd->device->lun);
 	dprintkdbg(DBG_SG, "srb_done: srb=%p sg=%i(%i/%i) buf=%p\n",
 		   srb, scsi_sg_count(cmd), srb->sg_index, srb->sg_count,
 		   scsi_sgtalbe(cmd));
@@ -3498,7 +3498,7 @@
 		if (srb->total_xfer_length)
 			dprintkdbg(DBG_KG, "srb_done: (0x%p) <%02i-%i> "
 				"cmnd=0x%02x Missed %i bytes\n",
-				cmd, cmd->device->id, cmd->device->lun,
+				cmd, cmd->device->id, (u8)cmd->device->lun,
 				cmd->cmnd[0], srb->total_xfer_length);
 	}
 
@@ -3538,7 +3538,7 @@
 			dir = p->sc_data_direction;
 			result = MK_RES(0, did_flag, 0, 0);
 			printk("G:%p(%02i-%i) ", p,
-			       p->device->id, p->device->lun);
+			       p->device->id, (u8)p->device->lun);
 			srb_going_remove(dcb, srb);
 			free_tag(dcb, srb);
 			srb_free_insert(acb, srb);
@@ -3568,7 +3568,7 @@
 
 			result = MK_RES(0, did_flag, 0, 0);
 			printk("W:%p<%02i-%i>", p, p->device->id,
-			       p->device->lun);
+			       (u8)p->device->lun);
 			srb_waiting_remove(dcb, srb);
 			srb_free_insert(acb, srb);
 			p->result = result;
@@ -3677,7 +3677,7 @@
 {
 	struct scsi_cmnd *cmd = srb->cmd;
 	dprintkdbg(DBG_1, "request_sense: (0x%p) <%02i-%i>\n",
-		cmd, cmd->device->id, cmd->device->lun);
+		cmd, cmd->device->id, (u8)cmd->device->lun);
 
 	srb->flag |= AUTO_REQSENSE;
 	srb->adapter_status = 0;
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index c0ae8fa..67283ef 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -459,7 +459,7 @@
 		 * to the device structure.  This should be a TEST_UNIT_READY
 		 * command from scan_scsis_single.
 		 */
-		if ((pDev = adpt_find_device(pHba, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun)) == NULL) {
+		if ((pDev = adpt_find_device(pHba, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun)) == NULL) {
 			// TODO: if any luns are at this bus, scsi id then fake a TEST_UNIT_READY and INQUIRY response 
 			// with type 7F (for all luns less than the max for this bus,id) so the lun scan will continue.
 			cmd->result = (DID_NO_CONNECT << 16);
@@ -579,8 +579,8 @@
 				seq_printf(m," Rev: %-8.8s\n", d->pScsi_dev->rev);
 
 				unit = d->pI2o_dev->lct_data.tid;
-				seq_printf(m, "\tTID=%d, (Channel=%d, Target=%d, Lun=%d)  (%s)\n\n",
-					       unit, (int)d->scsi_channel, (int)d->scsi_id, (int)d->scsi_lun,
+				seq_printf(m, "\tTID=%d, (Channel=%d, Target=%d, Lun=%llu)  (%s)\n\n",
+					       unit, (int)d->scsi_channel, (int)d->scsi_id, d->scsi_lun,
 					       scsi_device_online(d->pScsi_dev)? "online":"offline"); 
 				d = d->next_lun;
 			}
@@ -1162,7 +1162,7 @@
 	}
 }
 
-static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u32 lun)
+static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u64 lun)
 {
 	struct adpt_device* d;
 
@@ -1462,7 +1462,7 @@
 	i2o_lct *lct = pHba->lct;
 	u8 bus_no = 0;
 	s16 scsi_id;
-	s16 scsi_lun;
+	u64 scsi_lun;
 	u32 buf[10]; // larger than 7, or 8 ...
 	struct adpt_device* pDev; 
 	
@@ -1496,7 +1496,7 @@
 			}
 			bus_no = buf[0]>>16;
 			scsi_id = buf[1];
-			scsi_lun = (buf[2]>>8 )&0xff;
+			scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
 			if(bus_no >= MAX_CHANNEL) {	// Something wrong skip it
 				printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no);
 				continue;
@@ -1571,7 +1571,7 @@
 			if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)>=0) {
 				bus_no = buf[0]>>16;
 				scsi_id = buf[1];
-				scsi_lun = (buf[2]>>8 )&0xff;
+				scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
 				if(bus_no >= MAX_CHANNEL) {	// Something wrong skip it
 					continue;
 				}
@@ -2407,8 +2407,8 @@
 		case I2O_SCSI_DSC_COMMAND_TIMEOUT:
 		case I2O_SCSI_DSC_NO_ADAPTER:
 		case I2O_SCSI_DSC_RESOURCE_UNAVAILABLE:
-			printk(KERN_WARNING"%s: SCSI Timeout-Device (%d,%d,%d) hba status=0x%x, dev status=0x%x, cmd=0x%x\n",
-				pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun, hba_status, dev_status, cmd->cmnd[0]);
+			printk(KERN_WARNING"%s: SCSI Timeout-Device (%d,%d,%llu) hba status=0x%x, dev status=0x%x, cmd=0x%x\n",
+				pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, hba_status, dev_status, cmd->cmnd[0]);
 			cmd->result = (DID_TIME_OUT << 16);
 			break;
 		case I2O_SCSI_DSC_ADAPTER_BUSY:
@@ -2447,8 +2447,8 @@
 		case I2O_SCSI_DSC_QUEUE_FROZEN:
 		case I2O_SCSI_DSC_REQUEST_INVALID:
 		default:
-			printk(KERN_WARNING"%s: SCSI error %0x-Device(%d,%d,%d) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
-				pHba->name, detailed_status & I2O_SCSI_DSC_MASK, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun,
+			printk(KERN_WARNING"%s: SCSI error %0x-Device(%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
+				pHba->name, detailed_status & I2O_SCSI_DSC_MASK, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
 			       hba_status, dev_status, cmd->cmnd[0]);
 			cmd->result = (DID_ERROR << 16);
 			break;
@@ -2464,8 +2464,8 @@
 			   cmd->sense_buffer[2] == DATA_PROTECT ){
 				/* This is to handle an array failed */
 				cmd->result = (DID_TIME_OUT << 16);
-				printk(KERN_WARNING"%s: SCSI Data Protect-Device (%d,%d,%d) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
-					pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun, 
+				printk(KERN_WARNING"%s: SCSI Data Protect-Device (%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
+					pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
 					hba_status, dev_status, cmd->cmnd[0]);
 
 			}
@@ -2476,8 +2476,8 @@
 		 * for a limitted number of retries.
 		 */
 		cmd->result = (DID_TIME_OUT << 16);
-		printk(KERN_WARNING"%s: I2O MSG_FAIL - Device (%d,%d,%d) tid=%d, cmd=0x%x\n",
-			pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun,
+		printk(KERN_WARNING"%s: I2O MSG_FAIL - Device (%d,%d,%llu) tid=%d, cmd=0x%x\n",
+			pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
 			((struct adpt_device*)(cmd->device->hostdata))->tid, cmd->cmnd[0]);
 	}
 
@@ -2517,7 +2517,7 @@
 	i2o_lct *lct = pHba->lct;
 	u8 bus_no = 0;
 	s16 scsi_id;
-	s16 scsi_lun;
+	u64 scsi_lun;
 	u32 buf[10]; // at least 8 u32's
 	struct adpt_device* pDev = NULL;
 	struct i2o_device* pI2o_dev = NULL;
@@ -2564,7 +2564,7 @@
 			}
 
 			scsi_id = buf[1];
-			scsi_lun = (buf[2]>>8 )&0xff;
+			scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
 			pDev = pHba->channel[bus_no].device[scsi_id];
 			/* da lun */
 			while(pDev) {
@@ -2633,7 +2633,7 @@
 			while(pDev) {
 				if(pDev->scsi_lun == scsi_lun) {
 					if(!scsi_device_online(pDev->pScsi_dev)) {
-						printk(KERN_WARNING"%s: Setting device (%d,%d,%d) back online\n",
+						printk(KERN_WARNING"%s: Setting device (%d,%d,%llu) back online\n",
 								pHba->name,bus_no,scsi_id,scsi_lun);
 						if (pDev->pScsi_dev) {
 							scsi_device_set_state(pDev->pScsi_dev, SDEV_RUNNING);
@@ -2665,7 +2665,7 @@
 		// in the LCT table
 		if (pDev->state & DPTI_DEV_UNSCANNED){
 			pDev->state = DPTI_DEV_OFFLINE;
-			printk(KERN_WARNING"%s: Device (%d,%d,%d) offline\n",pHba->name,pDev->scsi_channel,pDev->scsi_id,pDev->scsi_lun);
+			printk(KERN_WARNING"%s: Device (%d,%d,%llu) offline\n",pHba->name,pDev->scsi_channel,pDev->scsi_id,pDev->scsi_lun);
 			if (pDev->pScsi_dev) {
 				scsi_device_set_state(pDev->pScsi_dev, SDEV_OFFLINE);
 			}
diff --git a/drivers/scsi/dpti.h b/drivers/scsi/dpti.h
index aeb0461..1fa345a 100644
--- a/drivers/scsi/dpti.h
+++ b/drivers/scsi/dpti.h
@@ -184,7 +184,7 @@
 	u32	block_size;
 	u8	scsi_channel;
 	u8	scsi_id;
-	u8 	scsi_lun;
+	u64	scsi_lun;
 	u8	state;
 	u16	tid;
 	struct i2o_device* pI2o_dev;
@@ -231,7 +231,7 @@
 	u32  sg_tablesize;	// Scatter/Gather List Size.       
 	u8  top_scsi_channel;
 	u8  top_scsi_id;
-	u8  top_scsi_lun;
+	u64  top_scsi_lun;
 	u8  dma64;
 
 	i2o_status_block* status_block;
@@ -300,7 +300,7 @@
 static void adpt_i2o_delete_hba(adpt_hba* pHba);
 static void adpt_inquiry(adpt_hba* pHba);
 static void adpt_fail_posted_scbs(adpt_hba* pHba);
-static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u32 lun);
+static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u64 lun);
 static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev) ;
 static int adpt_i2o_online_hba(adpt_hba* pHba);
 static void adpt_i2o_post_wait_complete(u32, int);
diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c
index ebf5736..0f27ac1 100644
--- a/drivers/scsi/eata.c
+++ b/drivers/scsi/eata.c
@@ -2449,7 +2449,7 @@
 			       "target_status 0x%x, sense key 0x%x.\n",
 			       ha->board_name,
 			       SCpnt->device->channel, SCpnt->device->id,
-			       SCpnt->device->lun,
+			       (u8)SCpnt->device->lun,
 			       spp->target_status, SCpnt->sense_buffer[2]);
 
 		ha->target_to[SCpnt->device->id][SCpnt->device->channel] = 0;
diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index ea28b5c..3f88f56 100644
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -1753,7 +1753,7 @@
 	tag = sc->request->tag;
 	FNIC_SCSI_DBG(KERN_DEBUG,
 		fnic->lport->host,
-		"Abort Cmd called FCID 0x%x, LUN 0x%x TAG %x flags %x\n",
+		"Abort Cmd called FCID 0x%x, LUN 0x%llx TAG %x flags %x\n",
 		rport->port_id, sc->device->lun, tag, CMD_FLAGS(sc));
 
 	CMD_FLAGS(sc) = FNIC_NO_FLAGS;
@@ -2207,7 +2207,7 @@
 
 	rport = starget_to_rport(scsi_target(sc->device));
 	FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
-		      "Device reset called FCID 0x%x, LUN 0x%x sc 0x%p\n",
+		      "Device reset called FCID 0x%x, LUN 0x%llx sc 0x%p\n",
 		      rport->port_id, sc->device->lun, sc);
 
 	if (lp->state != LPORT_ST_READY || !(lp->link_up))
diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c
index a1bc8ca9..b331272 100644
--- a/drivers/scsi/g_NCR5380.c
+++ b/drivers/scsi/g_NCR5380.c
@@ -768,7 +768,7 @@
 
 static void sprint_Scsi_Cmnd(struct seq_file *m, Scsi_Cmnd * cmd)
 {
-	PRINTP("host number %d destination target %d, lun %d\n" ANDP cmd->device->host->host_no ANDP cmd->device->id ANDP cmd->device->lun);
+	PRINTP("host number %d destination target %d, lun %llu\n" ANDP cmd->device->host->host_no ANDP cmd->device->id ANDP cmd->device->lun);
 	PRINTP("        command = ");
 	sprint_command(m, cmd->cmnd);
 }
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 31184b3..a59e1e0 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -4590,7 +4590,7 @@
 		return FAILED;
 
 	memset(msg, 0, sizeof(msg));
-	ml += sprintf(msg+ml, "ABORT REQUEST on C%d:B%d:T%d:L%d ",
+	ml += sprintf(msg+ml, "ABORT REQUEST on C%d:B%d:T%d:L%llu ",
 		h->scsi_host->host_no, sc->device->channel,
 		sc->device->id, sc->device->lun);
 
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index ee196b3..dedb62c 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -1024,7 +1024,7 @@
 
 	_req->scp = scp;
 
-	dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%d cdb=(%08x-%08x-%08x-%08x) "
+	dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%llu cdb=(%08x-%08x-%08x-%08x) "
 			"req_index=%d, req=%p\n",
 			scp,
 			host->host_no, scp->device->channel,
diff --git a/drivers/scsi/in2000.c b/drivers/scsi/in2000.c
index b1c4d83..ddf0694 100644
--- a/drivers/scsi/in2000.c
+++ b/drivers/scsi/in2000.c
@@ -2251,14 +2251,14 @@
 		seq_printf(m, "\nconnected:     ");
 		if (hd->connected) {
 			cmd = (Scsi_Cmnd *) hd->connected;
-			seq_printf(m, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
+			seq_printf(m, " %d:%llu(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
 		}
 	}
 	if (hd->proc & PR_INPUTQ) {
 		seq_printf(m, "\ninput_Q:       ");
 		cmd = (Scsi_Cmnd *) hd->input_Q;
 		while (cmd) {
-			seq_printf(m, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
+			seq_printf(m, " %d:%llu(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
 			cmd = (Scsi_Cmnd *) cmd->host_scribble;
 		}
 	}
@@ -2266,7 +2266,7 @@
 		seq_printf(m, "\ndisconnected_Q:");
 		cmd = (Scsi_Cmnd *) hd->disconnected_Q;
 		while (cmd) {
-			seq_printf(m, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
+			seq_printf(m, " %d:%llu(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
 			cmd = (Scsi_Cmnd *) cmd->host_scribble;
 		}
 	}
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 3d1bc67..f2db82b 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -260,7 +260,7 @@
 {
 	struct iscsi_conn *conn = task->conn;
 	struct iscsi_tm *tmf = &conn->tmhdr;
-	unsigned int hdr_lun;
+	u64 hdr_lun;
 
 	if (conn->tmf_state == TMF_INITIAL)
 		return 0;
@@ -1859,8 +1859,7 @@
  * Fail commands. session lock held and recv side suspended and xmit
  * thread flushed
  */
-static void fail_scsi_tasks(struct iscsi_conn *conn, unsigned lun,
-			    int error)
+static void fail_scsi_tasks(struct iscsi_conn *conn, u64 lun, int error)
 {
 	struct iscsi_task *task;
 	int i;
@@ -2279,7 +2278,8 @@
 	cls_session = starget_to_session(scsi_target(sc->device));
 	session = cls_session->dd_data;
 
-	ISCSI_DBG_EH(session, "LU Reset [sc %p lun %u]\n", sc, sc->device->lun);
+	ISCSI_DBG_EH(session, "LU Reset [sc %p lun %llu]\n", sc,
+		     sc->device->lun);
 
 	mutex_lock(&session->eh_mutex);
 	spin_lock_bh(&session->frwd_lock);
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 25d0f127..7d02a19 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -404,7 +404,7 @@
 
 	int_to_scsilun(cmd->device->lun, &lun);
 
-	SAS_DPRINTK("eh: device %llx LUN %x has the task\n",
+	SAS_DPRINTK("eh: device %llx LUN %llx has the task\n",
 		    SAS_ADDR(dev->sas_addr),
 		    cmd->device->lun);
 
@@ -490,7 +490,8 @@
 }
 EXPORT_SYMBOL(sas_wait_eh);
 
-static int sas_queue_reset(struct domain_device *dev, int reset_type, int lun, int wait)
+static int sas_queue_reset(struct domain_device *dev, int reset_type,
+			   u64 lun, int wait)
 {
 	struct sas_ha_struct *ha = dev->port->ha;
 	int scheduled = 0, tries = 100;
@@ -689,7 +690,7 @@
  reset:
 			tmf_resp = sas_recover_lu(task->dev, cmd);
 			if (tmf_resp == TMF_RESP_FUNC_COMPLETE) {
-				SAS_DPRINTK("dev %016llx LU %x is "
+				SAS_DPRINTK("dev %016llx LU %llx is "
 					    "recovered\n",
 					    SAS_ADDR(task->dev),
 					    cmd->device->lun);
@@ -742,7 +743,7 @@
 			 * of effort could recover from errors.  Quite
 			 * possibly the HA just disappeared.
 			 */
-			SAS_DPRINTK("error from  device %llx, LUN %x "
+			SAS_DPRINTK("error from  device %llx, LUN %llx "
 				    "couldn't be recovered in any way\n",
 				    SAS_ADDR(task->dev->sas_addr),
 				    cmd->device->lun);
@@ -941,7 +942,7 @@
 		scsi_set_tag_type(scsi_dev, MSG_SIMPLE_TAG);
 		scsi_activate_tcq(scsi_dev, SAS_DEF_QD);
 	} else {
-		SAS_DPRINTK("device %llx, LUN %x doesn't support "
+		SAS_DPRINTK("device %llx, LUN %llx doesn't support "
 			    "TCQ\n", SAS_ADDR(dev->sas_addr),
 			    scsi_dev->lun);
 		scsi_dev->tagged_supported = 0;
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 2df11da..7862c55 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -258,7 +258,7 @@
 lpfc_send_sdev_queuedepth_change_event(struct lpfc_hba *phba,
 		struct lpfc_vport  *vport,
 		struct lpfc_nodelist *ndlp,
-		uint32_t lun,
+		uint64_t lun,
 		uint32_t old_val,
 		uint32_t new_val)
 {
@@ -3823,7 +3823,7 @@
 		if (rsplen != 0 && rsplen != 4 && rsplen != 8) {
 			lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
 				 "2719 Invalid response length: "
-				 "tgt x%x lun x%x cmnd x%x rsplen x%x\n",
+				 "tgt x%x lun x%llx cmnd x%x rsplen x%x\n",
 				 cmnd->device->id,
 				 cmnd->device->lun, cmnd->cmnd[0],
 				 rsplen);
@@ -3834,7 +3834,7 @@
 			lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
 				 "2757 Protocol failure detected during "
 				 "processing of FCP I/O op: "
-				 "tgt x%x lun x%x cmnd x%x rspInfo3 x%x\n",
+				 "tgt x%x lun x%llx cmnd x%x rspInfo3 x%x\n",
 				 cmnd->device->id,
 				 cmnd->device->lun, cmnd->cmnd[0],
 				 fcprsp->rspInfo3);
@@ -4045,7 +4045,7 @@
 		else
 			logit = LOG_FCP | LOG_FCP_UNDER;
 		lpfc_printf_vlog(vport, KERN_WARNING, logit,
-			 "9030 FCP cmd x%x failed <%d/%d> "
+			 "9030 FCP cmd x%x failed <%d/%lld> "
 			 "status: x%x result: x%x "
 			 "sid: x%x did: x%x oxid: x%x "
 			 "Data: x%x x%x\n",
@@ -4157,7 +4157,7 @@
 		uint32_t *lp = (uint32_t *)cmd->sense_buffer;
 
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
-				 "0710 Iodone <%d/%d> cmd %p, error "
+				 "0710 Iodone <%d/%llu> cmd %p, error "
 				 "x%x SNS x%x x%x Data: x%x x%x\n",
 				 cmd->device->id, cmd->device->lun, cmd,
 				 cmd->result, *lp, *(lp + 3), cmd->retries,
@@ -4390,7 +4390,7 @@
 static int
 lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport,
 			     struct lpfc_scsi_buf *lpfc_cmd,
-			     unsigned int lun,
+			     uint64_t lun,
 			     uint8_t task_mgmt_cmd)
 {
 	struct lpfc_iocbq *piocbq;
@@ -4719,12 +4719,12 @@
 		atomic_dec(&ndlp->cmd_pending);
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
 				 "3376 FCP could not issue IOCB err %x"
-				 "FCP cmd x%x <%d/%d> "
+				 "FCP cmd x%x <%d/%llu> "
 				 "sid: x%x did: x%x oxid: x%x "
 				 "Data: x%x x%x x%x x%x\n",
 				 err, cmnd->cmnd[0],
 				 cmnd->device ? cmnd->device->id : 0xffff,
-				 cmnd->device ? cmnd->device->lun : 0xffff,
+				 cmnd->device ? cmnd->device->lun : (u64) -1,
 				 vport->fc_myDID, ndlp->nlp_DID,
 				 phba->sli_rev == LPFC_SLI_REV4 ?
 				 lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff,
@@ -4807,7 +4807,7 @@
 		spin_unlock_irqrestore(&phba->hbalock, flags);
 		lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
 			 "2873 SCSI Layer I/O Abort Request IO CMPL Status "
-			 "x%x ID %d LUN %d\n",
+			 "x%x ID %d LUN %llu\n",
 			 SUCCESS, cmnd->device->id, cmnd->device->lun);
 		return SUCCESS;
 	}
@@ -4924,7 +4924,7 @@
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
 				 "0748 abort handler timed out waiting "
 				 "for abortng I/O (xri:x%x) to complete: "
-				 "ret %#x, ID %d, LUN %d\n",
+				 "ret %#x, ID %d, LUN %llu\n",
 				 iocb->sli4_xritag, ret,
 				 cmnd->device->id, cmnd->device->lun);
 	}
@@ -4935,7 +4935,7 @@
 out:
 	lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
 			 "0749 SCSI Layer I/O Abort Request Status x%x ID %d "
-			 "LUN %d\n", ret, cmnd->device->id,
+			 "LUN %llu\n", ret, cmnd->device->id,
 			 cmnd->device->lun);
 	return ret;
 }
@@ -5047,7 +5047,7 @@
  **/
 static int
 lpfc_send_taskmgmt(struct lpfc_vport *vport, struct lpfc_rport_data *rdata,
-		    unsigned  tgt_id, unsigned int lun_id,
+		    unsigned  tgt_id, uint64_t lun_id,
 		    uint8_t task_mgmt_cmd)
 {
 	struct lpfc_hba   *phba = vport->phba;
@@ -5083,7 +5083,7 @@
 	iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl;
 
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
-			 "0702 Issue %s to TGT %d LUN %d "
+			 "0702 Issue %s to TGT %d LUN %llu "
 			 "rpi x%x nlp_flag x%x Data: x%x x%x\n",
 			 lpfc_taskmgmt_name(task_mgmt_cmd), tgt_id, lun_id,
 			 pnode->nlp_rpi, pnode->nlp_flag, iocbq->sli4_xritag,
@@ -5094,7 +5094,7 @@
 	if ((status != IOCB_SUCCESS) ||
 	    (iocbqrsp->iocb.ulpStatus != IOSTAT_SUCCESS)) {
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
-			 "0727 TMF %s to TGT %d LUN %d failed (%d, %d) "
+			 "0727 TMF %s to TGT %d LUN %llu failed (%d, %d) "
 			 "iocb_flag x%x\n",
 			 lpfc_taskmgmt_name(task_mgmt_cmd),
 			 tgt_id, lun_id, iocbqrsp->iocb.ulpStatus,
@@ -5238,7 +5238,7 @@
 	struct lpfc_rport_data *rdata;
 	struct lpfc_nodelist *pnode;
 	unsigned tgt_id = cmnd->device->id;
-	unsigned int lun_id = cmnd->device->lun;
+	uint64_t lun_id = cmnd->device->lun;
 	struct lpfc_scsi_event_header scsi_event;
 	int status;
 
@@ -5273,7 +5273,7 @@
 						FCP_LUN_RESET);
 
 	lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
-			 "0713 SCSI layer issued Device Reset (%d, %d) "
+			 "0713 SCSI layer issued Device Reset (%d, %llu) "
 			 "return x%x\n", tgt_id, lun_id, status);
 
 	/*
@@ -5308,7 +5308,7 @@
 	struct lpfc_rport_data *rdata;
 	struct lpfc_nodelist *pnode;
 	unsigned tgt_id = cmnd->device->id;
-	unsigned int lun_id = cmnd->device->lun;
+	uint64_t lun_id = cmnd->device->lun;
 	struct lpfc_scsi_event_header scsi_event;
 	int status;
 
@@ -5343,7 +5343,7 @@
 					FCP_TARGET_RESET);
 
 	lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
-			 "0723 SCSI layer issued Target Reset (%d, %d) "
+			 "0723 SCSI layer issued Target Reset (%d, %llu) "
 			 "return x%x\n", tgt_id, lun_id, status);
 
 	/*
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index b777051..6bb2b52 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -1941,8 +1941,8 @@
 
 	printk(KERN_WARNING "megaraid: %s cmd=%x <c=%d t=%d l=%d>\n",
 	     (aor == SCB_ABORT)? "ABORTING":"RESET",
-	     cmd->cmnd[0], cmd->device->channel, 
-	     cmd->device->id, cmd->device->lun);
+	     cmd->cmnd[0], cmd->device->channel,
+	     cmd->device->id, (u32)cmd->device->lun);
 
 	if(list_empty(&adapter->pending_list))
 		return FALSE;
diff --git a/drivers/scsi/megaraid/mega_common.h b/drivers/scsi/megaraid/mega_common.h
index 5ead128..1d037ed 100644
--- a/drivers/scsi/megaraid/mega_common.h
+++ b/drivers/scsi/megaraid/mega_common.h
@@ -204,7 +204,7 @@
 #define SCP2HOSTDATA(scp)		SCP2HOST(scp)->hostdata	// to soft state
 #define SCP2CHANNEL(scp)		(scp)->device->channel	// to channel
 #define SCP2TARGET(scp)			(scp)->device->id	// to target
-#define SCP2LUN(scp)			(scp)->device->lun	// to LUN
+#define SCP2LUN(scp)			(u32)(scp)->device->lun	// to LUN
 
 // generic macro to convert scsi command and host to controller's soft state
 #define SCSIHOST2ADAP(host)	(((caddr_t *)(host->hostdata))[0])
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 2260041..3ed03df 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -1690,7 +1690,7 @@
 			 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
 	}
 	io_request->RaidContext.VirtualDiskTgtId = cpu_to_le16(device_id);
-	io_request->LUN[1] = scmd->device->lun;
+	int_to_scsilun(scmd->device->lun, (struct scsi_lun *)io_request->LUN);
 }
 
 /**
@@ -1713,7 +1713,7 @@
 	device_id = MEGASAS_DEV_INDEX(instance, scp);
 
 	/* Zero out some fields so they don't get reused */
-	io_request->LUN[1] = 0;
+	memset(io_request->LUN, 0x0, 8);
 	io_request->CDB.EEDP32.PrimaryReferenceTag = 0;
 	io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0;
 	io_request->EEDPFlags = 0;
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c
index e8a04ae..7a6160f 100644
--- a/drivers/scsi/mesh.c
+++ b/drivers/scsi/mesh.c
@@ -1230,7 +1230,7 @@
 				ms->msgphase = msg_out;
 			} else if (code != cmd->device->lun + IDENTIFY_BASE) {
 				printk(KERN_WARNING "mesh: lun mismatch "
-				       "(%d != %d) on reselection from "
+				       "(%d != %llu) on reselection from "
 				       "target %d\n", code - IDENTIFY_BASE,
 				       cmd->device->lun, ms->conn_tgt);
 			}
diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
index 7d014b1..a7305ff 100644
--- a/drivers/scsi/ncr53c8xx.c
+++ b/drivers/scsi/ncr53c8xx.c
@@ -6633,7 +6633,7 @@
 		**	patch requested size into sense command
 		*/
 		cp->sensecmd[0]		= 0x03;
-		cp->sensecmd[1]		= cmd->device->lun << 5;
+		cp->sensecmd[1]		= (cmd->device->lun & 0x7) << 5;
 		cp->sensecmd[4]		= sizeof(cp->sense_buf);
 
 		/*
diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c
index 0665f9c..50b086a 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -915,7 +915,7 @@
 	int ret;
 
 	nsp32_dbg(NSP32_DEBUG_QUEUECOMMAND,
-		  "enter. target: 0x%x LUN: 0x%x cmnd: 0x%x cmndlen: 0x%x "
+		  "enter. target: 0x%x LUN: 0x%llu 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));
diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c
index 987fbb1..340ceff 100644
--- a/drivers/scsi/pcmcia/nsp_cs.c
+++ b/drivers/scsi/pcmcia/nsp_cs.c
@@ -195,7 +195,7 @@
 	nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
 
 	nsp_dbg(NSP_DEBUG_QUEUECOMMAND,
-		"SCpnt=0x%p target=%d lun=%d sglist=0x%p bufflen=%d sg_count=%d",
+		"SCpnt=0x%p target=%d lun=%llu sglist=0x%p bufflen=%d sg_count=%d",
 		SCpnt, target, SCpnt->device->lun, scsi_sglist(SCpnt),
 		scsi_bufflen(SCpnt), scsi_sg_count(SCpnt));
 	//nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "before CurrentSC=0x%p", data->CurrentSC);
diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index f5b5273..155f957 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -558,7 +558,7 @@
 
 	DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n", 
 	    SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->device->id, 
-	    SCpnt->device->lun,  scsi_bufflen(SCpnt)));
+		   (u8)SCpnt->device->lun,  scsi_bufflen(SCpnt)));
 
 	VDEB(for (i = 0; i < SCpnt->cmd_len; i++)
 	    printk("cmd[%d]=%02x  ", i, SCpnt->cmnd[i]));
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index be8ce54..017f8b9 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -237,7 +237,7 @@
 		     scsi_dev->host->unique_id,
 		     scsi_dev->channel,
 		     scsi_dev->id,
-		     scsi_dev->lun);
+		     (u8)scsi_dev->lun);
 
 	if (RES_IS_GSCSI(res->cfg_entry)) {
 		scsi_dev->allow_restart = 1;
diff --git a/drivers/scsi/ps3rom.c b/drivers/scsi/ps3rom.c
index e6e2a30..ef23fab 100644
--- a/drivers/scsi/ps3rom.c
+++ b/drivers/scsi/ps3rom.c
@@ -78,7 +78,7 @@
 	struct ps3rom_private *priv = shost_priv(scsi_dev->host);
 	struct ps3_storage_device *dev = priv->dev;
 
-	dev_dbg(&dev->sbd.core, "%s:%u: id %u, lun %u, channel %u\n", __func__,
+	dev_dbg(&dev->sbd.core, "%s:%u: id %u, lun %llu, channel %u\n", __func__,
 		__LINE__, scsi_dev->id, scsi_dev->lun, scsi_dev->channel);
 
 	/*
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index de5d0ae..b643991 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -320,8 +320,8 @@
 			 * defined in tsk_mgmt_entry struct
 			 * for control_flags field in qla_fw.h.
 			 */
+			uint64_t lun;
 			uint32_t flags;
-			uint32_t lun;
 			uint32_t data;
 			struct completion comp;
 			__le16 comp_status;
@@ -2529,8 +2529,8 @@
 	void (*disable_intrs) (struct qla_hw_data *);
 
 	int (*abort_command) (srb_t *);
-	int (*target_reset) (struct fc_port *, unsigned int, int);
-	int (*lun_reset) (struct fc_port *, unsigned int, int);
+	int (*target_reset) (struct fc_port *, uint64_t, int);
+	int (*lun_reset) (struct fc_port *, uint64_t, int);
 	int (*fabric_login) (struct scsi_qla_host *, uint16_t, uint8_t,
 		uint8_t, uint8_t, uint16_t *, uint8_t);
 	int (*fabric_logout) (struct scsi_qla_host *, uint16_t, uint8_t,
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index d48dea8..9ef0781 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -212,7 +212,7 @@
 extern int qla2x00_start_scsi(srb_t *sp);
 extern int qla24xx_start_scsi(srb_t *sp);
 int qla2x00_marker(struct scsi_qla_host *, struct req_que *, struct rsp_que *,
-						uint16_t, uint16_t, uint8_t);
+						uint16_t, uint64_t, uint8_t);
 extern int qla2x00_start_sp(srb_t *);
 extern int qla24xx_dif_start_scsi(srb_t *);
 extern int qla2x00_start_bidir(srb_t *, struct scsi_qla_host *, uint32_t);
@@ -262,10 +262,10 @@
 qla2x00_abort_command(srb_t *);
 
 extern int
-qla2x00_abort_target(struct fc_port *, unsigned int, int);
+qla2x00_abort_target(struct fc_port *, uint64_t, int);
 
 extern int
-qla2x00_lun_reset(struct fc_port *, unsigned int, int);
+qla2x00_lun_reset(struct fc_port *, uint64_t, int);
 
 extern int
 qla2x00_get_adapter_id(scsi_qla_host_t *, uint16_t *, uint8_t *, uint8_t *,
@@ -339,12 +339,12 @@
 extern int qla24xx_abort_command(srb_t *);
 extern int qla24xx_async_abort_command(srb_t *);
 extern int
-qla24xx_abort_target(struct fc_port *, unsigned int, int);
+qla24xx_abort_target(struct fc_port *, uint64_t, int);
 extern int
-qla24xx_lun_reset(struct fc_port *, unsigned int, int);
+qla24xx_lun_reset(struct fc_port *, uint64_t, int);
 extern int
 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *, unsigned int,
-	unsigned int, enum nexus_wait_type);
+	uint64_t, enum nexus_wait_type);
 extern int
 qla2x00_system_error(scsi_qla_host_t *);
 
@@ -617,8 +617,8 @@
 extern irqreturn_t qlafx00_intr_handler(int, void *);
 extern void qlafx00_enable_intrs(struct qla_hw_data *);
 extern void qlafx00_disable_intrs(struct qla_hw_data *);
-extern int qlafx00_abort_target(fc_port_t *, unsigned int, int);
-extern int qlafx00_lun_reset(fc_port_t *, unsigned int, int);
+extern int qlafx00_abort_target(fc_port_t *, uint64_t, int);
+extern int qlafx00_lun_reset(fc_port_t *, uint64_t, int);
 extern int qlafx00_start_scsi(srb_t *);
 extern int qlafx00_abort_isp(scsi_qla_host_t *);
 extern int qlafx00_iospace_config(struct qla_hw_data *);
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 7609315..150529d 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -520,7 +520,7 @@
 static int
 __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req,
 			struct rsp_que *rsp, uint16_t loop_id,
-			uint16_t lun, uint8_t type)
+			uint64_t lun, uint8_t type)
 {
 	mrk_entry_t *mrk;
 	struct mrk_entry_24xx *mrk24 = NULL;
@@ -543,14 +543,13 @@
 		if (IS_FWI2_CAPABLE(ha)) {
 			mrk24 = (struct mrk_entry_24xx *) mrk;
 			mrk24->nport_handle = cpu_to_le16(loop_id);
-			mrk24->lun[1] = LSB(lun);
-			mrk24->lun[2] = MSB(lun);
+			int_to_scsilun(lun, (struct scsi_lun *)&mrk24->lun);
 			host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun));
 			mrk24->vp_index = vha->vp_idx;
 			mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle);
 		} else {
 			SET_TARGET_ID(ha, mrk->target, loop_id);
-			mrk->lun = cpu_to_le16(lun);
+			mrk->lun = cpu_to_le16((uint16_t)lun);
 		}
 	}
 	wmb();
@@ -562,7 +561,7 @@
 
 int
 qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req,
-		struct rsp_que *rsp, uint16_t loop_id, uint16_t lun,
+		struct rsp_que *rsp, uint16_t loop_id, uint64_t lun,
 		uint8_t type)
 {
 	int ret;
@@ -2047,7 +2046,7 @@
 qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk)
 {
 	uint32_t flags;
-	unsigned int lun;
+	uint64_t lun;
 	struct fc_port *fcport = sp->fcport;
 	scsi_qla_host_t *vha = fcport->vha;
 	struct qla_hw_data *ha = vha->hw;
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index a56825c..550a4a3 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1659,7 +1659,7 @@
 
 	if (sense_len) {
 		ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
-		    "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
+		    "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
 		    sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
 		    cp);
 		ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
@@ -2281,7 +2281,7 @@
 out:
 	if (logit)
 		ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
-		    "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%d "
+		    "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
 		    "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
 		    "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
 		    comp_status, scsi_status, res, vha->host_no,
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 1c33a77..d9aafc0 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -947,7 +947,7 @@
 }
 
 int
-qla2x00_abort_target(struct fc_port *fcport, unsigned int l, int tag)
+qla2x00_abort_target(struct fc_port *fcport, uint64_t l, int tag)
 {
 	int rval, rval2;
 	mbx_cmd_t  mc;
@@ -1000,7 +1000,7 @@
 }
 
 int
-qla2x00_lun_reset(struct fc_port *fcport, unsigned int l, int tag)
+qla2x00_lun_reset(struct fc_port *fcport, uint64_t l, int tag)
 {
 	int rval, rval2;
 	mbx_cmd_t  mc;
@@ -1022,7 +1022,7 @@
 		mcp->mb[1] = fcport->loop_id;
 	else
 		mcp->mb[1] = fcport->loop_id << 8;
-	mcp->mb[2] = l;
+	mcp->mb[2] = (u32)l;
 	mcp->mb[3] = 0;
 	mcp->mb[9] = vha->vp_idx;
 
@@ -2666,7 +2666,7 @@
 
 static int
 __qla24xx_issue_tmf(char *name, uint32_t type, struct fc_port *fcport,
-    unsigned int l, int tag)
+    uint64_t l, int tag)
 {
 	int		rval, rval2;
 	struct tsk_mgmt_cmd *tsk;
@@ -2760,7 +2760,7 @@
 }
 
 int
-qla24xx_abort_target(struct fc_port *fcport, unsigned int l, int tag)
+qla24xx_abort_target(struct fc_port *fcport, uint64_t l, int tag)
 {
 	struct qla_hw_data *ha = fcport->vha->hw;
 
@@ -2771,7 +2771,7 @@
 }
 
 int
-qla24xx_lun_reset(struct fc_port *fcport, unsigned int l, int tag)
+qla24xx_lun_reset(struct fc_port *fcport, uint64_t l, int tag)
 {
 	struct qla_hw_data *ha = fcport->vha->hw;
 
diff --git a/drivers/scsi/qla2xxx/qla_mr.c b/drivers/scsi/qla2xxx/qla_mr.c
index abeb390..4775baa 100644
--- a/drivers/scsi/qla2xxx/qla_mr.c
+++ b/drivers/scsi/qla2xxx/qla_mr.c
@@ -726,13 +726,13 @@
 }
 
 int
-qlafx00_abort_target(fc_port_t *fcport, unsigned int l, int tag)
+qlafx00_abort_target(fc_port_t *fcport, uint64_t l, int tag)
 {
 	return qla2x00_async_tm_cmd(fcport, TCF_TARGET_RESET, l, tag);
 }
 
 int
-qlafx00_lun_reset(fc_port_t *fcport, unsigned int l, int tag)
+qlafx00_lun_reset(fc_port_t *fcport, uint64_t l, int tag)
 {
 	return qla2x00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
 }
@@ -2159,7 +2159,7 @@
 
 	if (sense_len) {
 		ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3039,
-		    "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
+		    "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
 		    sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
 		    cp);
 		ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3049,
@@ -2524,7 +2524,7 @@
 
 	if (logit)
 		ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
-		    "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%d "
+		    "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
 		    "tgt_id: 0x%x lscsi_status: 0x%x cdb=%10phN len=0x%x "
 		    "rsp_info=0x%x resid=0x%x fw_resid=0x%x sense_len=0x%x, "
 		    "par_sense_len=0x%x, rsp_info_len=0x%x\n",
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 5269aee..b22c753 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -920,7 +920,8 @@
 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 	srb_t *sp;
 	int ret;
-	unsigned int id, lun;
+	unsigned int id;
+	uint64_t lun;
 	unsigned long flags;
 	int rval, wait = 0;
 	struct qla_hw_data *ha = vha->hw;
@@ -944,7 +945,7 @@
 	}
 
 	ql_dbg(ql_dbg_taskm, vha, 0x8002,
-	    "Aborting from RISC nexus=%ld:%d:%d sp=%p cmd=%p\n",
+	    "Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p\n",
 	    vha->host_no, id, lun, sp, cmd);
 
 	/* Get a reference to the sp and drop the lock.*/
@@ -995,7 +996,7 @@
 	}
 
 	ql_log(ql_log_info, vha, 0x801c,
-	    "Abort command issued nexus=%ld:%d:%d --  %d %x.\n",
+	    "Abort command issued nexus=%ld:%d:%llu --  %d %x.\n",
 	    vha->host_no, id, lun, wait, ret);
 
 	return ret;
@@ -1003,7 +1004,7 @@
 
 int
 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
-	unsigned int l, enum nexus_wait_type type)
+	uint64_t l, enum nexus_wait_type type)
 {
 	int cnt, match, status;
 	unsigned long flags;
@@ -1060,7 +1061,7 @@
 
 static int
 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
-    struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
+    struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, uint64_t, int))
 {
 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
@@ -1075,7 +1076,7 @@
 		return err;
 
 	ql_log(ql_log_info, vha, 0x8009,
-	    "%s RESET ISSUED nexus=%ld:%d:%d cmd=%p.\n", name, vha->host_no,
+	    "%s RESET ISSUED nexus=%ld:%d:%llu cmd=%p.\n", name, vha->host_no,
 	    cmd->device->id, cmd->device->lun, cmd);
 
 	err = 0;
@@ -1100,14 +1101,14 @@
 	}
 
 	ql_log(ql_log_info, vha, 0x800e,
-	    "%s RESET SUCCEEDED nexus:%ld:%d:%d cmd=%p.\n", name,
+	    "%s RESET SUCCEEDED nexus:%ld:%d:%llu cmd=%p.\n", name,
 	    vha->host_no, cmd->device->id, cmd->device->lun, cmd);
 
 	return SUCCESS;
 
 eh_reset_failed:
 	ql_log(ql_log_info, vha, 0x800f,
-	    "%s RESET FAILED: %s nexus=%ld:%d:%d cmd=%p.\n", name,
+	    "%s RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n", name,
 	    reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
 	    cmd);
 	return FAILED;
@@ -1154,7 +1155,8 @@
 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 	int ret = FAILED;
-	unsigned int id, lun;
+	unsigned int id;
+	uint64_t lun;
 
 	id = cmd->device->id;
 	lun = cmd->device->lun;
@@ -1169,7 +1171,7 @@
 	ret = FAILED;
 
 	ql_log(ql_log_info, vha, 0x8012,
-	    "BUS RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
+	    "BUS RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
 
 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 		ql_log(ql_log_fatal, vha, 0x8013,
@@ -1193,7 +1195,7 @@
 
 eh_bus_reset_done:
 	ql_log(ql_log_warn, vha, 0x802b,
-	    "BUS RESET %s nexus=%ld:%d:%d.\n",
+	    "BUS RESET %s nexus=%ld:%d:%llu.\n",
 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
 
 	return ret;
@@ -1220,14 +1222,15 @@
 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 	struct qla_hw_data *ha = vha->hw;
 	int ret = FAILED;
-	unsigned int id, lun;
+	unsigned int id;
+	uint64_t lun;
 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 
 	id = cmd->device->id;
 	lun = cmd->device->lun;
 
 	ql_log(ql_log_info, vha, 0x8018,
-	    "ADAPTER RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
+	    "ADAPTER RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
 
 	/*
 	 * No point in issuing another reset if one is active.  Also do not
@@ -1273,7 +1276,7 @@
 
 eh_host_reset_lock:
 	ql_log(ql_log_info, vha, 0x8017,
-	    "ADAPTER RESET %s nexus=%ld:%d:%d.\n",
+	    "ADAPTER RESET %s nexus=%ld:%d:%llu.\n",
 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
 
 	return ret;
@@ -1409,7 +1412,7 @@
 		return;
 
 	ql_dbg(ql_dbg_io, fcport->vha, 0x3029,
-	    "Queue depth adjusted-down to %d for nexus=%ld:%d:%d.\n",
+	    "Queue depth adjusted-down to %d for nexus=%ld:%d:%llu.\n",
 	    sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
 }
 
@@ -1432,7 +1435,7 @@
 		scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
 
 	ql_dbg(ql_dbg_io, vha, 0x302a,
-	    "Queue depth adjusted-up to %d for nexus=%ld:%d:%d.\n",
+	    "Queue depth adjusted-up to %d for nexus=%ld:%d:%llu.\n",
 	    sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
 }
 
diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h
index 5f58b45..2559144 100644
--- a/drivers/scsi/qla4xxx/ql4_glbl.h
+++ b/drivers/scsi/qla4xxx/ql4_glbl.h
@@ -23,7 +23,7 @@
 int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host *ha);
 int qla4xxx_abort_task(struct scsi_qla_host *ha, struct srb *srb);
 int qla4xxx_reset_lun(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry,
-		      int lun);
+		      uint64_t lun);
 int qla4xxx_reset_target(struct scsi_qla_host *ha,
 			 struct ddb_entry *ddb_entry);
 int qla4xxx_get_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr,
@@ -76,7 +76,7 @@
 		uint32_t state, uint32_t conn_error);
 void qla4xxx_dump_buffer(void *b, uint32_t size);
 int qla4xxx_send_marker_iocb(struct scsi_qla_host *ha,
-	struct ddb_entry *ddb_entry, int lun, uint16_t mrkr_mod);
+	struct ddb_entry *ddb_entry, uint64_t lun, uint16_t mrkr_mod);
 int qla4xxx_set_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr,
 		      uint32_t offset, uint32_t length, uint32_t options);
 int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c
index e5697ab..08ab6da 100644
--- a/drivers/scsi/qla4xxx/ql4_iocb.c
+++ b/drivers/scsi/qla4xxx/ql4_iocb.c
@@ -83,7 +83,7 @@
  * This routine issues a marker IOCB.
  **/
 int qla4xxx_send_marker_iocb(struct scsi_qla_host *ha,
-	struct ddb_entry *ddb_entry, int lun, uint16_t mrkr_mod)
+	struct ddb_entry *ddb_entry, uint64_t lun, uint16_t mrkr_mod)
 {
 	struct qla4_marker_entry *marker_entry;
 	unsigned long flags = 0;
diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c
index 081b6b7..4f9c0f2 100644
--- a/drivers/scsi/qla4xxx/ql4_isr.c
+++ b/drivers/scsi/qla4xxx/ql4_isr.c
@@ -26,7 +26,7 @@
 	memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 	sense_len = le16_to_cpu(sts_entry->senseDataByteCnt);
 	if (sense_len == 0) {
-		DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d:%d: %s:"
+		DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d:%llu: %s:"
 				  " sense len 0\n", ha->host_no,
 				  cmd->device->channel, cmd->device->id,
 				  cmd->device->lun, __func__));
@@ -43,7 +43,7 @@
 	sense_len = min_t(uint16_t, sense_len, IOCB_MAX_SENSEDATA_LEN);
 	memcpy(cmd->sense_buffer, sts_entry->senseData, sense_len);
 
-	DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: %s: sense key = %x, "
+	DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%llu: %s: sense key = %x, "
 		"ASL= %02x, ASC/ASCQ = %02x/%02x\n", ha->host_no,
 		cmd->device->channel, cmd->device->id,
 		cmd->device->lun, __func__,
@@ -169,7 +169,7 @@
 
 				cmd->result = DID_ERROR << 16;
 
-				DEBUG2(printk("scsi%ld:%d:%d:%d: %s: "
+				DEBUG2(printk("scsi%ld:%d:%d:%llu: %s: "
 					"Mid-layer Data underrun0, "
 					"xferlen = 0x%x, "
 					"residual = 0x%x\n", ha->host_no,
@@ -197,7 +197,7 @@
 		break;
 
 	case SCS_RESET_OCCURRED:
-		DEBUG2(printk("scsi%ld:%d:%d:%d: %s: Device RESET occurred\n",
+		DEBUG2(printk("scsi%ld:%d:%d:%llu: %s: Device RESET occurred\n",
 			      ha->host_no, cmd->device->channel,
 			      cmd->device->id, cmd->device->lun, __func__));
 
@@ -205,7 +205,7 @@
 		break;
 
 	case SCS_ABORTED:
-		DEBUG2(printk("scsi%ld:%d:%d:%d: %s: Abort occurred\n",
+		DEBUG2(printk("scsi%ld:%d:%d:%llu: %s: Abort occurred\n",
 			      ha->host_no, cmd->device->channel,
 			      cmd->device->id, cmd->device->lun, __func__));
 
@@ -213,7 +213,7 @@
 		break;
 
 	case SCS_TIMEOUT:
-		DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: Timeout\n",
+		DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%llu: Timeout\n",
 			      ha->host_no, cmd->device->channel,
 			      cmd->device->id, cmd->device->lun));
 
@@ -232,7 +232,7 @@
 	case SCS_DATA_OVERRUN:
 		if ((sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_OVER) ||
 		     (sts_entry->completionStatus == SCS_DATA_OVERRUN)) {
-			DEBUG2(printk("scsi%ld:%d:%d:%d: %s: " "Data overrun\n",
+			DEBUG2(printk("scsi%ld:%d:%d:%llu: %s: " "Data overrun\n",
 				      ha->host_no,
 				      cmd->device->channel, cmd->device->id,
 				      cmd->device->lun, __func__));
@@ -259,7 +259,7 @@
 			if (!scsi_status && (scsi_bufflen(cmd) - residual) <
 			    cmd->underflow) {
 				DEBUG2(ql4_printk(KERN_INFO, ha,
-						  "scsi%ld:%d:%d:%d: %s: Mid-layer Data underrun, xferlen = 0x%x,residual = 0x%x\n",
+						  "scsi%ld:%d:%d:%llu: %s: Mid-layer Data underrun, xferlen = 0x%x,residual = 0x%x\n",
 						   ha->host_no,
 						   cmd->device->channel,
 						   cmd->device->id,
@@ -291,7 +291,7 @@
 			 */
 
 			DEBUG2(ql4_printk(KERN_INFO, ha,
-					  "scsi%ld:%d:%d:%d: %s: Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
+					  "scsi%ld:%d:%d:%llu: %s: Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
 					  ha->host_no,
 					  cmd->device->channel,
 					  cmd->device->id,
@@ -313,7 +313,7 @@
 
 	case SCS_DEVICE_LOGGED_OUT:
 	case SCS_DEVICE_UNAVAILABLE:
-		DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: SCS_DEVICE "
+		DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%llu: SCS_DEVICE "
 		    "state: 0x%x\n", ha->host_no,
 		    cmd->device->channel, cmd->device->id,
 		    cmd->device->lun, sts_entry->completionStatus));
@@ -333,7 +333,7 @@
 		 * SCSI Mid-Layer handles device queue full
 		 */
 		cmd->result = DID_OK << 16 | sts_entry->scsiStatus;
-		DEBUG2(printk("scsi%ld:%d:%d: %s: QUEUE FULL detected "
+		DEBUG2(printk("scsi%ld:%d:%llu: %s: QUEUE FULL detected "
 			      "compl=%02x, scsi=%02x, state=%02x, iFlags=%02x,"
 			      " iResp=%02x\n", ha->host_no, cmd->device->id,
 			      cmd->device->lun, __func__,
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 0a3312c..fdfae79 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -1205,7 +1205,7 @@
 	if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE) {
 		status = QLA_ERROR;
 
-		DEBUG2(printk(KERN_WARNING "scsi%ld:%d:%d: abort task FAILED: "
+		DEBUG2(printk(KERN_WARNING "scsi%ld:%d:%llu: abort task FAILED: "
 		    "mbx0=%04X, mb1=%04X, mb2=%04X, mb3=%04X, mb4=%04X\n",
 		    ha->host_no, cmd->device->id, cmd->device->lun, mbox_sts[0],
 		    mbox_sts[1], mbox_sts[2], mbox_sts[3], mbox_sts[4]));
@@ -1225,14 +1225,14 @@
  * are valid before calling this routine.
  **/
 int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry,
-		      int lun)
+		      uint64_t lun)
 {
 	uint32_t mbox_cmd[MBOX_REG_COUNT];
 	uint32_t mbox_sts[MBOX_REG_COUNT];
 	uint32_t scsi_lun[2];
 	int status = QLA_SUCCESS;
 
-	DEBUG2(printk("scsi%ld:%d:%d: lun reset issued\n", ha->host_no,
+	DEBUG2(printk("scsi%ld:%d:%llu: lun reset issued\n", ha->host_no,
 		      ddb_entry->fw_ddb_index, lun));
 
 	/*
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 3202063..c5d9564 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -9223,20 +9223,20 @@
 {
 	struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
 	unsigned int id = cmd->device->id;
-	unsigned int lun = cmd->device->lun;
+	uint64_t lun = cmd->device->lun;
 	unsigned long flags;
 	struct srb *srb = NULL;
 	int ret = SUCCESS;
 	int wait = 0;
 
-	ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d: Abort command issued cmd=%p, cdb=0x%x\n",
+	ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
 		   ha->host_no, id, lun, cmd, cmd->cmnd[0]);
 
 	spin_lock_irqsave(&ha->hardware_lock, flags);
 	srb = (struct srb *) CMD_SP(cmd);
 	if (!srb) {
 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
-		ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d: Specified command has already completed.\n",
+		ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
 			   ha->host_no, id, lun);
 		return SUCCESS;
 	}
@@ -9244,11 +9244,11 @@
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
 	if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
-		DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n",
+		DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
 		    ha->host_no, id, lun));
 		ret = FAILED;
 	} else {
-		DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n",
+		DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
 		    ha->host_no, id, lun));
 		wait = 1;
 	}
@@ -9258,14 +9258,14 @@
 	/* Wait for command to complete */
 	if (wait) {
 		if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
-			DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n",
+			DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
 			    ha->host_no, id, lun));
 			ret = FAILED;
 		}
 	}
 
 	ql4_printk(KERN_INFO, ha,
-	    "scsi%ld:%d:%d: Abort command - %s\n",
+	    "scsi%ld:%d:%llu: Abort command - %s\n",
 	    ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
 
 	return ret;
@@ -9293,7 +9293,7 @@
 	ret = FAILED;
 
 	ql4_printk(KERN_INFO, ha,
-		   "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no,
+		   "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
 		   cmd->device->channel, cmd->device->id, cmd->device->lun);
 
 	DEBUG2(printk(KERN_INFO
@@ -9323,7 +9323,7 @@
 		goto eh_dev_reset_done;
 
 	ql4_printk(KERN_INFO, ha,
-		   "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n",
+		   "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
 		   ha->host_no, cmd->device->channel, cmd->device->id,
 		   cmd->device->lun);
 
@@ -9440,7 +9440,7 @@
 	}
 
 	ql4_printk(KERN_INFO, ha,
-		   "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
+		   "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
 		   cmd->device->channel, cmd->device->id, cmd->device->lun);
 
 	if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 53b8b94e..bff351b 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -1291,7 +1291,7 @@
  * really want to use scsi_device_lookup_by_target instead.
  **/
 struct scsi_device *__scsi_device_lookup_by_target(struct scsi_target *starget,
-						   uint lun)
+						   u64 lun)
 {
 	struct scsi_device *sdev;
 
@@ -1316,7 +1316,7 @@
  * needs to be released with scsi_device_put once you're done with it.
  **/
 struct scsi_device *scsi_device_lookup_by_target(struct scsi_target *starget,
-						 uint lun)
+						 u64 lun)
 {
 	struct scsi_device *sdev;
 	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
@@ -1349,7 +1349,7 @@
  * really want to use scsi_device_lookup instead.
  **/
 struct scsi_device *__scsi_device_lookup(struct Scsi_Host *shost,
-		uint channel, uint id, uint lun)
+		uint channel, uint id, u64 lun)
 {
 	struct scsi_device *sdev;
 
@@ -1375,7 +1375,7 @@
  * needs to be released with scsi_device_put once you're done with it.
  **/
 struct scsi_device *scsi_device_lookup(struct Scsi_Host *shost,
-		uint channel, uint id, uint lun)
+		uint channel, uint id, u64 lun)
 {
 	struct scsi_device *sdev;
 	unsigned long flags;
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index c4ad52c..6ed43fd 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -228,9 +228,9 @@
 	unsigned char sense_buff[SDEBUG_SENSE_LEN];	/* weak nexus */
 	unsigned int channel;
 	unsigned int target;
-	unsigned int lun;
+	u64 lun;
 	struct sdebug_host_info *sdbg_host;
-	unsigned int wlun;
+	u64 wlun;
 	char reset;
 	char stopped;
 	char used;
@@ -2278,7 +2278,8 @@
 			    struct sdebug_dev_info * devip)
 {
 	unsigned int alloc_len;
-	int lun_cnt, i, upper, num, n, wlun, lun;
+	int lun_cnt, i, upper, num, n;
+	u64 wlun, lun;
 	unsigned char *cmd = (unsigned char *)scp->cmnd;
 	int select_report = (int)cmd[2];
 	struct scsi_lun *one_lun;
@@ -2462,7 +2463,7 @@
 static int scsi_debug_slave_alloc(struct scsi_device *sdp)
 {
 	if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
-		printk(KERN_INFO "scsi_debug: slave_alloc <%u %u %u %u>\n",
+		printk(KERN_INFO "scsi_debug: slave_alloc <%u %u %u %llu>\n",
 		       sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
 	queue_flag_set_unlocked(QUEUE_FLAG_BIDI, sdp->request_queue);
 	return 0;
@@ -2473,7 +2474,7 @@
 	struct sdebug_dev_info *devip;
 
 	if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
-		printk(KERN_INFO "scsi_debug: slave_configure <%u %u %u %u>\n",
+		printk(KERN_INFO "scsi_debug: slave_configure <%u %u %u %llu>\n",
 		       sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
 	if (sdp->host->max_cmd_len != SCSI_DEBUG_MAX_CMD_LEN)
 		sdp->host->max_cmd_len = SCSI_DEBUG_MAX_CMD_LEN;
@@ -2496,7 +2497,7 @@
 		(struct sdebug_dev_info *)sdp->hostdata;
 
 	if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
-		printk(KERN_INFO "scsi_debug: slave_destroy <%u %u %u %u>\n",
+		printk(KERN_INFO "scsi_debug: slave_destroy <%u %u %u %llu>\n",
 		       sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
 	if (devip) {
 		/* make this slot available for re-use */
@@ -2708,7 +2709,7 @@
 		if (scsi_result) {
 			struct scsi_device * sdp = cmnd->device;
 
-			printk(KERN_INFO "scsi_debug:    <%u %u %u %u> "
+			printk(KERN_INFO "scsi_debug:    <%u %u %u %llu> "
 			       "non-zero result=0x%x\n", sdp->host->host_no,
 			       sdp->channel, sdp->id, sdp->lun, scsi_result);
 		}
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index 48e5b65..a45d1c2 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -115,7 +115,7 @@
 extern char scsi_scan_type[];
 extern int scsi_complete_async_scans(void);
 extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
-				   unsigned int, unsigned int, int);
+				   unsigned int, u64, int);
 extern void scsi_forget_host(struct Scsi_Host *);
 extern void scsi_rescan_device(struct device *);
 
diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c
index 86f0c5d..6fcefa2 100644
--- a/drivers/scsi/scsi_proc.c
+++ b/drivers/scsi/scsi_proc.c
@@ -185,7 +185,7 @@
 
 	sdev = to_scsi_device(dev);
 	seq_printf(s,
-		"Host: scsi%d Channel: %02d Id: %02d Lun: %02d\n  Vendor: ",
+		"Host: scsi%d Channel: %02d Id: %02d Lun: %02llu\n  Vendor: ",
 		sdev->host->host_no, sdev->channel, sdev->id, sdev->lun);
 	for (i = 0; i < 8; i++) {
 		if (sdev->vendor[i] >= 0x20)
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index a02f7b0..1a71547 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -220,7 +220,7 @@
  *     scsi_Device pointer, or NULL on failure.
  **/
 static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget,
-					   unsigned int lun, void *hostdata)
+					   u64 lun, void *hostdata)
 {
 	struct scsi_device *sdev;
 	int display_failure_msg = 1, ret;
@@ -1028,7 +1028,7 @@
  *     SCSI_SCAN_LUN_PRESENT: a new scsi_device was allocated and initialized
  **/
 static int scsi_probe_and_add_lun(struct scsi_target *starget,
-				  uint lun, int *bflagsp,
+				  u64 lun, int *bflagsp,
 				  struct scsi_device **sdevp, int rescan,
 				  void *hostdata)
 {
@@ -1181,7 +1181,8 @@
 static void scsi_sequential_lun_scan(struct scsi_target *starget,
 				     int bflags, int scsi_level, int rescan)
 {
-	unsigned int sparse_lun, lun, max_dev_lun;
+	uint max_dev_lun;
+	u64 sparse_lun, lun;
 	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
 
 	SCSI_LOG_SCAN_BUS(3, printk(KERN_INFO "scsi scan: Sequential scan of"
@@ -1271,10 +1272,10 @@
  *     Given a struct scsi_lun of: 0a 04 0b 03 00 00 00 00, this function returns
  *     the integer: 0x0b030a04
  **/
-int scsilun_to_int(struct scsi_lun *scsilun)
+u64 scsilun_to_int(struct scsi_lun *scsilun)
 {
 	int i;
-	unsigned int lun;
+	u64 lun;
 
 	lun = 0;
 	for (i = 0; i < sizeof(lun); i += 2)
@@ -1302,7 +1303,7 @@
  *     scsi_lun of : struct scsi_lun of: 0a 04 0b 03 00 00 00 00
  *
  **/
-void int_to_scsilun(unsigned int lun, struct scsi_lun *scsilun)
+void int_to_scsilun(u64 lun, struct scsi_lun *scsilun)
 {
 	int i;
 
@@ -1342,7 +1343,7 @@
 	char devname[64];
 	unsigned char scsi_cmd[MAX_COMMAND_SIZE];
 	unsigned int length;
-	unsigned int lun;
+	u64 lun;
 	unsigned int num_luns;
 	unsigned int retries;
 	int result;
@@ -1485,25 +1486,8 @@
 	for (lunp = &lun_data[1]; lunp <= &lun_data[num_luns]; lunp++) {
 		lun = scsilun_to_int(lunp);
 
-		/*
-		 * Check if the unused part of lunp is non-zero, and so
-		 * does not fit in lun.
-		 */
-		if (memcmp(&lunp->scsi_lun[sizeof(lun)], "\0\0\0\0", 4)) {
-			int i;
-
-			/*
-			 * Output an error displaying the LUN in byte order,
-			 * this differs from what linux would print for the
-			 * integer LUN value.
-			 */
-			printk(KERN_WARNING "scsi: %s lun 0x", devname);
-			data = (char *)lunp->scsi_lun;
-			for (i = 0; i < sizeof(struct scsi_lun); i++)
-				printk("%02x", data[i]);
-			printk(" has a LUN larger than currently supported.\n");
-		} else if (lun > sdev->host->max_lun) {
-			printk(KERN_WARNING "scsi: %s lun%d has a LUN larger"
+		if (lun > sdev->host->max_lun) {
+			printk(KERN_WARNING "scsi: %s lun%llu has a LUN larger"
 			       " than allowed by the host adapter\n",
 			       devname, lun);
 		} else {
@@ -1517,8 +1501,8 @@
 				 */
 				sdev_printk(KERN_ERR, sdev,
 					"Unexpected response"
-				        " from lun %d while scanning, scan"
-				        " aborted\n", lun);
+					" from lun %llu while scanning, scan"
+					" aborted\n", (unsigned long long)lun);
 				break;
 			}
 		}
@@ -1537,7 +1521,7 @@
 }
 
 struct scsi_device *__scsi_add_device(struct Scsi_Host *shost, uint channel,
-				      uint id, uint lun, void *hostdata)
+				      uint id, u64 lun, void *hostdata)
 {
 	struct scsi_device *sdev = ERR_PTR(-ENODEV);
 	struct device *parent = &shost->shost_gendev;
@@ -1573,7 +1557,7 @@
 EXPORT_SYMBOL(__scsi_add_device);
 
 int scsi_add_device(struct Scsi_Host *host, uint channel,
-		    uint target, uint lun)
+		    uint target, u64 lun)
 {
 	struct scsi_device *sdev = 
 		__scsi_add_device(host, channel, target, lun, NULL);
@@ -1602,7 +1586,7 @@
 EXPORT_SYMBOL(scsi_rescan_device);
 
 static void __scsi_scan_target(struct device *parent, unsigned int channel,
-		unsigned int id, unsigned int lun, int rescan)
+		unsigned int id, u64 lun, int rescan)
 {
 	struct Scsi_Host *shost = dev_to_shost(parent);
 	int bflags = 0;
@@ -1670,7 +1654,7 @@
  *     sequential scan of LUNs on the target id.
  **/
 void scsi_scan_target(struct device *parent, unsigned int channel,
-		      unsigned int id, unsigned int lun, int rescan)
+		      unsigned int id, u64 lun, int rescan)
 {
 	struct Scsi_Host *shost = dev_to_shost(parent);
 
@@ -1690,7 +1674,7 @@
 EXPORT_SYMBOL(scsi_scan_target);
 
 static void scsi_scan_channel(struct Scsi_Host *shost, unsigned int channel,
-			      unsigned int id, unsigned int lun, int rescan)
+			      unsigned int id, u64 lun, int rescan)
 {
 	uint order_id;
 
@@ -1721,10 +1705,10 @@
 }
 
 int scsi_scan_host_selected(struct Scsi_Host *shost, unsigned int channel,
-			    unsigned int id, unsigned int lun, int rescan)
+			    unsigned int id, u64 lun, int rescan)
 {
 	SCSI_LOG_SCAN_BUS(3, shost_printk (KERN_INFO, shost,
-		"%s: <%u:%u:%u>\n",
+		"%s: <%u:%u:%llu>\n",
 		__func__, channel, id, lun));
 
 	if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) ||
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 074e8cc..5f36788 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -80,7 +80,7 @@
 	return name;
 }
 
-static int check_set(unsigned int *val, char *src)
+static int check_set(unsigned long long *val, char *src)
 {
 	char *last;
 
@@ -90,7 +90,7 @@
 		/*
 		 * Doesn't check for int overflow
 		 */
-		*val = simple_strtoul(src, &last, 0);
+		*val = simple_strtoull(src, &last, 0);
 		if (*last != '\0')
 			return 1;
 	}
@@ -99,11 +99,11 @@
 
 static int scsi_scan(struct Scsi_Host *shost, const char *str)
 {
-	char s1[15], s2[15], s3[15], junk;
-	unsigned int channel, id, lun;
+	char s1[15], s2[15], s3[17], junk;
+	unsigned long long channel, id, lun;
 	int res;
 
-	res = sscanf(str, "%10s %10s %10s %c", s1, s2, s3, &junk);
+	res = sscanf(str, "%10s %10s %16s %c", s1, s2, s3, &junk);
 	if (res != 3)
 		return -EINVAL;
 	if (check_set(&channel, s1))
@@ -1230,13 +1230,13 @@
 	device_initialize(&sdev->sdev_gendev);
 	sdev->sdev_gendev.bus = &scsi_bus_type;
 	sdev->sdev_gendev.type = &scsi_dev_type;
-	dev_set_name(&sdev->sdev_gendev, "%d:%d:%d:%d",
+	dev_set_name(&sdev->sdev_gendev, "%d:%d:%d:%llu",
 		     sdev->host->host_no, sdev->channel, sdev->id, sdev->lun);
 
 	device_initialize(&sdev->sdev_dev);
 	sdev->sdev_dev.parent = get_device(&sdev->sdev_gendev);
 	sdev->sdev_dev.class = &sdev_class;
-	dev_set_name(&sdev->sdev_dev, "%d:%d:%d:%d",
+	dev_set_name(&sdev->sdev_dev, "%d:%d:%d:%llu",
 		     sdev->host->host_no, sdev->channel, sdev->id, sdev->lun);
 	sdev->scsi_level = starget->scsi_level;
 	transport_setup_device(&sdev->sdev_gendev);
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 521f583..8365705 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -2089,7 +2089,7 @@
  * on the rport.
  */
 static void
-fc_user_scan_tgt(struct Scsi_Host *shost, uint channel, uint id, uint lun)
+fc_user_scan_tgt(struct Scsi_Host *shost, uint channel, uint id, u64 lun)
 {
 	struct fc_rport *rport;
 	unsigned long flags;
@@ -2121,7 +2121,7 @@
  * object as the parent.
  */
 static int
-fc_user_scan(struct Scsi_Host *shost, uint channel, uint id, uint lun)
+fc_user_scan(struct Scsi_Host *shost, uint channel, uint id, u64 lun)
 {
 	uint chlo, chhi;
 	uint tgtlo, tgthi;
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 0102a2d..126bf26 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1780,7 +1780,7 @@
 struct iscsi_scan_data {
 	unsigned int channel;
 	unsigned int id;
-	unsigned int lun;
+	u64 lun;
 };
 
 static int iscsi_user_scan_session(struct device *dev, void *data)
@@ -1827,7 +1827,7 @@
 }
 
 static int iscsi_user_scan(struct Scsi_Host *shost, uint channel,
-			   uint id, uint lun)
+			   uint id, u64 lun)
 {
 	struct iscsi_scan_data scan_data;
 
diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index c341f85..9a05819 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -1705,7 +1705,7 @@
  */
 
 static int sas_user_scan(struct Scsi_Host *shost, uint channel,
-		uint id, uint lun)
+		uint id, u64 lun)
 {
 	struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
 	struct sas_rphy *rphy;
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 2e01a9d..1de183d 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -2542,7 +2542,7 @@
 		seq_puts(s, "-1\t-1\t-1\t-1\t-1\t-1\t-1\t-1\t-1\n");
 	else {
 		scsidp = sdp->device;
-		seq_printf(s, "%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n",
+		seq_printf(s, "%d\t%d\t%d\t%llu\t%d\t%d\t%d\t%d\t%d\n",
 			      scsidp->host->host_no, scsidp->channel,
 			      scsidp->id, scsidp->lun, (int) scsidp->type,
 			      1,
@@ -2671,7 +2671,7 @@
 		else if (sdp->device) {
 			struct scsi_device *scsidp = sdp->device;
 
-			seq_printf(s, "%d:%d:%d:%d   em=%d",
+			seq_printf(s, "%d:%d:%d:%llu   em=%d",
 				   scsidp->host->host_no,
 				   scsidp->channel, scsidp->id,
 				   scsidp->lun,
diff --git a/drivers/scsi/sun3_NCR5380.c b/drivers/scsi/sun3_NCR5380.c
index 8822079..1a2367a 100644
--- a/drivers/scsi/sun3_NCR5380.c
+++ b/drivers/scsi/sun3_NCR5380.c
@@ -355,17 +355,18 @@
 
 static int is_lun_busy(struct scsi_cmnd *cmd, int should_be_tagged)
 {
+    u8 lun = cmd->device->lun;
     SETUP_HOSTDATA(cmd->device->host);
 
-    if (hostdata->busy[cmd->device->id] & (1 << cmd->device->lun))
+    if (hostdata->busy[cmd->device->id] & (1 << lun))
 	return( 1 );
     if (!should_be_tagged ||
 	!setup_use_tagged_queuing || !cmd->device->tagged_supported)
 	return( 0 );
-    if (TagAlloc[cmd->device->id][cmd->device->lun].nr_allocated >=
-	TagAlloc[cmd->device->id][cmd->device->lun].queue_size ) {
+    if (TagAlloc[cmd->device->id][lun].nr_allocated >=
+	TagAlloc[cmd->device->id][lun].queue_size ) {
 	dprintk(NDEBUG_TAGS,  "scsi%d: target %d lun %d: no free tags\n",
-		    H_NO(cmd), cmd->device->id, cmd->device->lun );
+		    H_NO(cmd), cmd->device->id, lun );
 	return( 1 );
     }
     return( 0 );
@@ -379,6 +380,7 @@
 
 static void cmd_get_tag(struct scsi_cmnd *cmd, int should_be_tagged)
 {
+    u8 lun = cmd->device->lun;
     SETUP_HOSTDATA(cmd->device->host);
 
     /* If we or the target don't support tagged queuing, allocate the LUN for
@@ -387,19 +389,19 @@
     if (!should_be_tagged ||
 	!setup_use_tagged_queuing || !cmd->device->tagged_supported) {
 	cmd->tag = TAG_NONE;
-	hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
+	hostdata->busy[cmd->device->id] |= (1 << lun);
 	dprintk(NDEBUG_TAGS,  "scsi%d: target %d lun %d now allocated by untagged "
-		    "command\n", H_NO(cmd), cmd->device->id, cmd->device->lun );
+		    "command\n", H_NO(cmd), cmd->device->id, lun );
     }
     else {
-	TAG_ALLOC *ta = &TagAlloc[cmd->device->id][cmd->device->lun];
+	TAG_ALLOC *ta = &TagAlloc[cmd->device->id][lun];
 
 	cmd->tag = find_first_zero_bit( &ta->allocated, MAX_TAGS );
 	set_bit( cmd->tag, &ta->allocated );
 	ta->nr_allocated++;
 	dprintk(NDEBUG_TAGS,  "scsi%d: using tag %d for target %d lun %d "
 		    "(now %d tags in use)\n",
-		    H_NO(cmd), cmd->tag, cmd->device->id, cmd->device->lun,
+		    H_NO(cmd), cmd->tag, cmd->device->id, lun,
 		    ta->nr_allocated );
     }
 }
@@ -411,23 +413,24 @@
 
 static void cmd_free_tag(struct scsi_cmnd *cmd)
 {
+    u8 lun = cmd->device->lun;
     SETUP_HOSTDATA(cmd->device->host);
 
     if (cmd->tag == TAG_NONE) {
-	hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
+	hostdata->busy[cmd->device->id] &= ~(1 << lun);
 	dprintk(NDEBUG_TAGS,  "scsi%d: target %d lun %d untagged cmd finished\n",
-		    H_NO(cmd), cmd->device->id, cmd->device->lun );
+		    H_NO(cmd), cmd->device->id, lun );
     }
     else if (cmd->tag >= MAX_TAGS) {
 	printk(KERN_NOTICE "scsi%d: trying to free bad tag %d!\n",
 		H_NO(cmd), cmd->tag );
     }
     else {
-	TAG_ALLOC *ta = &TagAlloc[cmd->device->id][cmd->device->lun];
+	TAG_ALLOC *ta = &TagAlloc[cmd->device->id][lun];
 	clear_bit( cmd->tag, &ta->allocated );
 	ta->nr_allocated--;
 	dprintk(NDEBUG_TAGS,  "scsi%d: freed tag %d for target %d lun %d\n",
-		    H_NO(cmd), cmd->tag, cmd->device->id, cmd->device->lun );
+		    H_NO(cmd), cmd->tag, cmd->device->id, lun );
     }
 }
 
@@ -659,7 +662,7 @@
 {
 	int i, s;
 	unsigned char *command;
-	printk("scsi%d: destination target %d, lun %d\n",
+	printk("scsi%d: destination target %d, lun %llu\n",
 		H_NO(cmd), cmd->device->id, cmd->device->lun);
 	printk(KERN_CONT "        command = ");
 	command = cmd->cmnd;
@@ -705,7 +708,7 @@
 {
 	int i, s;
 	unsigned char *command;
-	seq_printf(m, "scsi%d: destination target %d, lun %d\n",
+	seq_printf(m, "scsi%d: destination target %d, lun %llu\n",
 		H_NO(cmd), cmd->device->id, cmd->device->lun);
 	seq_printf(m, "        command = ");
 	command = cmd->cmnd;
@@ -1007,7 +1010,7 @@
 		 prev = NULL; tmp; prev = tmp, tmp = NEXT(tmp) ) {
 
 		if (prev != tmp)
-			dprintk(NDEBUG_LISTS, "MAIN tmp=%p   target=%d   busy=%d lun=%d\n", tmp, tmp->device->id, hostdata->busy[tmp->device->id], tmp->device->lun);
+			dprintk(NDEBUG_LISTS, "MAIN tmp=%p   target=%d   busy=%d lun=%llu\n", tmp, tmp->device->id, hostdata->busy[tmp->device->id], tmp->device->lun);
 		/*  When we find one, remove it from the issue queue. */
 		/* ++guenther: possible race with Falcon locking */
 		if (
@@ -1038,7 +1041,7 @@
 		     *   issue queue so we can keep trying.	
 		     */
 		    dprintk(NDEBUG_MAIN, "scsi%d: main(): command for target %d "
-				"lun %d removed from issue_queue\n",
+				"lun %llu removed from issue_queue\n",
 				HOSTNO, tmp->device->id, tmp->device->lun);
 		    /* 
 		     * REQUEST SENSE commands are issued without tagged
@@ -2020,7 +2023,7 @@
 			 * accesses to this device will use the
 			 * polled-IO. */ 
 			printk(KERN_NOTICE "scsi%d: switching target %d "
-			       "lun %d to slow handshake\n", HOSTNO,
+			       "lun %llu to slow handshake\n", HOSTNO,
 			       cmd->device->id, cmd->device->lun);
 			cmd->device->borken = 1;
 			NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | 
@@ -2078,7 +2081,7 @@
 		    /* Accept message by clearing ACK */
 		    NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
 		    
-		    dprintk(NDEBUG_LINKED, "scsi%d: target %d lun %d linked command "
+		    dprintk(NDEBUG_LINKED, "scsi%d: target %d lun %llu linked command "
 			       "complete.\n", HOSTNO, cmd->device->id, cmd->device->lun);
 
 		    /* Enable reselect interrupts */
@@ -2090,7 +2093,7 @@
 		     */
 
 		    if (!cmd->next_link) {
-			 printk(KERN_NOTICE "scsi%d: target %d lun %d "
+			 printk(KERN_NOTICE "scsi%d: target %d lun %llu "
 				"linked command complete, no next_link\n",
 				HOSTNO, cmd->device->id, cmd->device->lun);
 			    sink = 1;
@@ -2103,7 +2106,7 @@
 		     * and don't free it! */
 		    cmd->next_link->tag = cmd->tag;
 		    cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8); 
-		    dprintk(NDEBUG_LINKED, "scsi%d: target %d lun %d linked request "
+		    dprintk(NDEBUG_LINKED, "scsi%d: target %d lun %llu linked request "
 			       "done, calling scsi_done().\n",
 			       HOSTNO, cmd->device->id, cmd->device->lun);
 #ifdef NCR5380_STATS
@@ -2118,7 +2121,7 @@
 		    /* Accept message by clearing ACK */
 		    NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
 		    hostdata->connected = NULL;
-		    dprintk(NDEBUG_QUEUES, "scsi%d: command for target %d, lun %d "
+		    dprintk(NDEBUG_QUEUES, "scsi%d: command for target %d, lun %llu "
 			      "completed\n", HOSTNO, cmd->device->id, cmd->device->lun);
 #ifdef SUPPORT_TAGS
 		    cmd_free_tag( cmd );
@@ -2132,7 +2135,7 @@
 			/* ++Andreas: the mid level code knows about
 			   QUEUE_FULL now. */
 			TAG_ALLOC *ta = &TagAlloc[cmd->device->id][cmd->device->lun];
-			dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %d returned "
+			dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %llu returned "
 				   "QUEUE_FULL after %d commands\n",
 				   HOSTNO, cmd->device->id, cmd->device->lun,
 				   ta->nr_allocated);
@@ -2228,7 +2231,7 @@
 			cmd->device->tagged_supported = 0;
 			hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
 			cmd->tag = TAG_NONE;
-			dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %d rejected "
+			dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %llu rejected "
 				   "QUEUE_TAG message; tagged queuing "
 				   "disabled\n",
 				   HOSTNO, cmd->device->id, cmd->device->lun);
@@ -2245,7 +2248,7 @@
 		    hostdata->connected = NULL;
 		    hostdata->disconnected_queue = cmd;
 		    local_irq_restore(flags);
-		    dprintk(NDEBUG_QUEUES, "scsi%d: command for target %d lun %d was "
+		    dprintk(NDEBUG_QUEUES, "scsi%d: command for target %d lun %llu was "
 			      "moved from connected to the "
 			      "disconnected_queue\n", HOSTNO, 
 			      cmd->device->id, cmd->device->lun);
@@ -2349,12 +2352,12 @@
 			printk("\n");
 		    } else if (tmp != EXTENDED_MESSAGE)
 			printk(KERN_DEBUG "scsi%d: rejecting unknown "
-			       "message %02x from target %d, lun %d\n",
+			       "message %02x from target %d, lun %llu\n",
 			       HOSTNO, tmp, cmd->device->id, cmd->device->lun);
 		    else
 			printk(KERN_DEBUG "scsi%d: rejecting unknown "
 			       "extended message "
-			       "code %02x, length %d from target %d, lun %d\n",
+			       "code %02x, length %d from target %d, lun %llu\n",
 			       HOSTNO, extended_msg[1], extended_msg[0],
 			       cmd->device->id, cmd->device->lun);
    
@@ -2576,7 +2579,7 @@
 #endif
     
     hostdata->connected = tmp;
-    dprintk(NDEBUG_RESELECTION, "scsi%d: nexus established, target = %d, lun = %d, tag = %d\n",
+    dprintk(NDEBUG_RESELECTION, "scsi%d: nexus established, target = %d, lun = %llu, tag = %d\n",
 	       HOSTNO, tmp->device->id, tmp->device->lun, tmp->tag);
 }
 
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
index 6d3ee1a..e59e6f9 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -851,7 +851,7 @@
 		 * so let's try to stop all on-going I/O.
 		 */
 		starget_printk(KERN_WARNING, tp->starget,
-			       "Removing busy LCB (%d)\n", sdev->lun);
+			       "Removing busy LCB (%d)\n", (u8)sdev->lun);
 		sym_reset_scsi_bus(np, 1);
 	}
 
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.h b/drivers/scsi/sym53c8xx_2/sym_hipd.h
index 5a80cba..a141b17 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.h
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.h
@@ -581,7 +581,7 @@
 #define sym_lp(tp, lun) (!lun) ? (tp)->lun0p : NULL
 #else
 #define sym_lp(tp, lun) \
-	(!lun) ? (tp)->lun0p : (tp)->lunmp ? (tp)->lunmp[(lun)] : NULL
+	(!lun) ? (tp)->lun0p : (tp)->lunmp ? (tp)->lunmp[((u8)lun)] : NULL
 #endif
 
 /*
diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c
index b006cf7..7645757 100644
--- a/drivers/scsi/tmscsim.c
+++ b/drivers/scsi/tmscsim.c
@@ -621,7 +621,7 @@
     {
 	dc390_freetag (pDCB, pSRB);
 	DEBUG0(printk ("DC390: Interrupt during Start SCSI (target %02i-%02i)\n",
-		scmd->device->id, scmd->device->lun));
+		       scmd->device->id, (u8)scmd->device->lun));
 	pSRB->SRBState = SRB_READY;
 	//DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
 	pACB->SelLost++;
@@ -1726,7 +1726,7 @@
 	    } else {
 		SET_RES_DRV(pcmd->result, DRIVER_SENSE);
 		//pSRB->ScsiCmdLen	 = (u8) (pSRB->Segment1[0] >> 8);
-		DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun));
+		DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, (u8)pcmd->device->lun));
 		pSRB->TotalXferredLen = 0;
 		SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
 	    }
@@ -1746,7 +1746,7 @@
 	else if (status == SAM_STAT_TASK_SET_FULL)
 	{
 	    scsi_track_queue_full(pcmd->device, pDCB->GoingSRBCnt - 1);
-	    DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun));
+	    DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, (u8)pcmd->device->lun));
 	    pSRB->TotalXferredLen = 0;
 	    SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
 	}
diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c
index 5a03bb3..4e76fe8 100644
--- a/drivers/scsi/u14-34f.c
+++ b/drivers/scsi/u14-34f.c
@@ -1285,14 +1285,14 @@
    cpp->cpp_index = i;
    SCpnt->host_scribble = (unsigned char *) &cpp->cpp_index;
 
-   if (do_trace) printk("%s: qcomm, mbox %d, target %d.%d:%d.\n",
+   if (do_trace) printk("%s: qcomm, mbox %d, target %d.%d:%llu.\n",
                         BN(j), i, SCpnt->device->channel, SCpnt->device->id,
-                        SCpnt->device->lun);
+                        (u8)SCpnt->device->lun);
 
    cpp->opcode = OP_SCSI;
    cpp->channel = SCpnt->device->channel;
    cpp->target = SCpnt->device->id;
-   cpp->lun = SCpnt->device->lun;
+   cpp->lun = (u8)SCpnt->device->lun;
    cpp->SCpnt = SCpnt;
    cpp->cdb_len = SCpnt->cmd_len;
    memcpy(cpp->cdb, SCpnt->cmnd, SCpnt->cmd_len);
@@ -1663,10 +1663,10 @@
    if (link_statistics && (overlap || !(flushcount % link_statistics)))
       for (n = 0; n < n_ready; n++) {
          k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
-         printk("%s %d.%d:%d mb %d fc %d nr %d sec %ld ns %u"\
+         printk("%s %d.%d:%llu mb %d fc %d nr %d sec %ld ns %u"\
                 " cur %ld s:%c r:%c rev:%c in:%c ov:%c xd %d.\n",
                 (ihdlr ? "ihdlr" : "qcomm"), SCpnt->channel, SCpnt->target,
-                SCpnt->lun, k, flushcount, n_ready,
+                (u8)SCpnt->lun, k, flushcount, n_ready,
                 blk_rq_pos(SCpnt->request), blk_rq_sectors(SCpnt->request),
 		cursec, YESNO(s), YESNO(r), YESNO(rev), YESNO(input_only),
                 YESNO(overlap), cpp->xdir);
diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index 41883a8..c0506de 100644
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -502,7 +502,8 @@
 	cmd = (struct scsi_cmnd *) hostdata->input_Q;
 	prev = NULL;
 	while (cmd) {
-		if (!(hostdata->busy[cmd->device->id] & (1 << cmd->device->lun)))
+		if (!(hostdata->busy[cmd->device->id] &
+		      (1 << (cmd->device->lun & 0xff))))
 			break;
 		prev = cmd;
 		cmd = (struct scsi_cmnd *) cmd->host_scribble;
@@ -593,10 +594,10 @@
 
 	write_wd33c93(regs, WD_SOURCE_ID, ((cmd->SCp.phase) ? SRCID_ER : 0));
 
-	write_wd33c93(regs, WD_TARGET_LUN, cmd->device->lun);
+	write_wd33c93(regs, WD_TARGET_LUN, (u8)cmd->device->lun);
 	write_wd33c93(regs, WD_SYNCHRONOUS_TRANSFER,
 		      hostdata->sync_xfer[cmd->device->id]);
-	hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
+	hostdata->busy[cmd->device->id] |= (1 << (cmd->device->lun & 0xFF));
 
 	if ((hostdata->level2 == L2_NONE) ||
 	    (hostdata->sync_stat[cmd->device->id] == SS_UNSET)) {
@@ -862,7 +863,7 @@
 		}
 
 		cmd->result = DID_NO_CONNECT << 16;
-		hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
+		hostdata->busy[cmd->device->id] &= ~(1 << (cmd->device->lun & 0xff));
 		hostdata->state = S_UNCONNECTED;
 		cmd->scsi_done(cmd);
 
@@ -895,7 +896,7 @@
 
 		/* construct an IDENTIFY message with correct disconnect bit */
 
-		hostdata->outgoing_msg[0] = (0x80 | 0x00 | cmd->device->lun);
+		hostdata->outgoing_msg[0] = IDENTIFY(0, cmd->device->lun);
 		if (cmd->SCp.phase)
 			hostdata->outgoing_msg[0] |= 0x40;
 
@@ -1179,7 +1180,7 @@
 			lun = read_wd33c93(regs, WD_TARGET_LUN);
 			DB(DB_INTR, printk(":%d.%d", cmd->SCp.Status, lun))
 			    hostdata->connected = NULL;
-			hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
+			hostdata->busy[cmd->device->id] &= ~(1 << (cmd->device->lun & 0xff));
 			hostdata->state = S_UNCONNECTED;
 			if (cmd->SCp.Status == ILLEGAL_STATUS_BYTE)
 				cmd->SCp.Status = lun;
@@ -1268,7 +1269,7 @@
 		}
 		DB(DB_INTR, printk("UNEXP_DISC"))
 		    hostdata->connected = NULL;
-		hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
+		hostdata->busy[cmd->device->id] &= ~(1 << (cmd->device->lun & 0xff));
 		hostdata->state = S_UNCONNECTED;
 		if (cmd->cmnd[0] == REQUEST_SENSE && cmd->SCp.Status != GOOD)
 			cmd->result =
@@ -1300,7 +1301,7 @@
 		switch (hostdata->state) {
 		case S_PRE_CMP_DISC:
 			hostdata->connected = NULL;
-			hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
+			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
@@ -1353,7 +1354,7 @@
 			if (hostdata->selecting) {
 				cmd = (struct scsi_cmnd *) hostdata->selecting;
 				hostdata->selecting = NULL;
-				hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
+				hostdata->busy[cmd->device->id] &= ~(1 << (cmd->device->lun & 0xff));
 				cmd->host_scribble =
 				    (uchar *) hostdata->input_Q;
 				hostdata->input_Q = cmd;
@@ -1365,7 +1366,7 @@
 			if (cmd) {
 				if (phs == 0x00) {
 					hostdata->busy[cmd->device->id] &=
-					    ~(1 << cmd->device->lun);
+						~(1 << (cmd->device->lun & 0xff));
 					cmd->host_scribble =
 					    (uchar *) hostdata->input_Q;
 					hostdata->input_Q = cmd;
@@ -1448,7 +1449,7 @@
 		cmd = (struct scsi_cmnd *) hostdata->disconnected_Q;
 		patch = NULL;
 		while (cmd) {
-			if (id == cmd->device->id && lun == cmd->device->lun)
+			if (id == cmd->device->id && lun == (u8)cmd->device->lun)
 				break;
 			patch = cmd;
 			cmd = (struct scsi_cmnd *) cmd->host_scribble;
@@ -1459,7 +1460,7 @@
 		if (!cmd) {
 			printk
 			    ("---TROUBLE: target %d.%d not in disconnect queue---",
-			     id, lun);
+			     id, (u8)lun);
 			spin_unlock_irqrestore(&hostdata->lock, flags);
 			return;
 		}
@@ -1705,7 +1706,7 @@
 		sr = read_wd33c93(regs, WD_SCSI_STATUS);
 		printk("asr=%02x, sr=%02x.", asr, sr);
 
-		hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
+		hostdata->busy[cmd->device->id] &= ~(1 << (cmd->device->lun & 0xff));
 		hostdata->connected = NULL;
 		hostdata->state = S_UNCONNECTED;
 		cmd->result = DID_ABORT << 16;
@@ -2169,7 +2170,7 @@
 		seq_printf(m, "\nconnected:     ");
 		if (hd->connected) {
 			cmd = (struct scsi_cmnd *) hd->connected;
-			seq_printf(m, " %d:%d(%02x)",
+			seq_printf(m, " %d:%llu(%02x)",
 				cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
 		}
 	}
@@ -2177,7 +2178,7 @@
 		seq_printf(m, "\ninput_Q:       ");
 		cmd = (struct scsi_cmnd *) hd->input_Q;
 		while (cmd) {
-			seq_printf(m, " %d:%d(%02x)",
+			seq_printf(m, " %d:%llu(%02x)",
 				cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
 			cmd = (struct scsi_cmnd *) cmd->host_scribble;
 		}
@@ -2186,7 +2187,7 @@
 		seq_printf(m, "\ndisconnected_Q:");
 		cmd = (struct scsi_cmnd *) hd->disconnected_Q;
 		while (cmd) {
-			seq_printf(m, " %d:%d(%02x)",
+			seq_printf(m, " %d:%llu(%02x)",
 				cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
 			cmd = (struct scsi_cmnd *) cmd->host_scribble;
 		}
diff --git a/drivers/staging/rts5208/rtsx.c b/drivers/staging/rts5208/rtsx.c
index c0a0e60..7702090 100644
--- a/drivers/staging/rts5208/rtsx.c
+++ b/drivers/staging/rts5208/rtsx.c
@@ -465,14 +465,14 @@
 		else if (chip->srb->device->id) {
 			dev_err(&dev->pci->dev, "Bad target number (%d:%d)\n",
 				chip->srb->device->id,
-				chip->srb->device->lun);
+				(u8)chip->srb->device->lun);
 			chip->srb->result = DID_BAD_TARGET << 16;
 		}
 
 		else if (chip->srb->device->lun > chip->max_lun) {
 			dev_err(&dev->pci->dev, "Bad LUN (%d:%d)\n",
 				chip->srb->device->id,
-				chip->srb->device->lun);
+				(u8)chip->srb->device->lun);
 			chip->srb->result = DID_BAD_TARGET << 16;
 		}
 
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 8c64b87..340de9d 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -252,7 +252,7 @@
 {
 	struct tcm_loop_cmd *tl_cmd;
 
-	pr_debug("tcm_loop_queuecommand() %d:%d:%d:%d got CDB: 0x%02x"
+	pr_debug("tcm_loop_queuecommand() %d:%d:%d:%llu got CDB: 0x%02x"
 		" scsi_buf_len: %u\n", sc->device->host->host_no,
 		sc->device->id, sc->device->channel, sc->device->lun,
 		sc->cmnd[0], scsi_bufflen(sc));
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 94d00df..943b1db 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -312,7 +312,7 @@
 	if (!sd->queue_depth) {
 		sd->queue_depth = PSCSI_DEFAULT_QUEUEDEPTH;
 
-		pr_err("Set broken SCSI Device %d:%d:%d"
+		pr_err("Set broken SCSI Device %d:%d:%llu"
 			" queue_depth to %d\n", sd->channel, sd->id,
 				sd->lun, sd->queue_depth);
 	}
@@ -375,7 +375,7 @@
 	int ret;
 
 	if (scsi_device_get(sd)) {
-		pr_err("scsi_device_get() failed for %d:%d:%d:%d\n",
+		pr_err("scsi_device_get() failed for %d:%d:%d:%llu\n",
 			sh->host_no, sd->channel, sd->id, sd->lun);
 		spin_unlock_irq(sh->host_lock);
 		return -EIO;
@@ -401,7 +401,7 @@
 		return ret;
 	}
 
-	pr_debug("CORE_PSCSI[%d] - Added TYPE_DISK for %d:%d:%d:%d\n",
+	pr_debug("CORE_PSCSI[%d] - Added TYPE_DISK for %d:%d:%d:%llu\n",
 		phv->phv_host_id, sh->host_no, sd->channel, sd->id, sd->lun);
 	return 0;
 }
@@ -417,7 +417,7 @@
 	int ret;
 
 	if (scsi_device_get(sd)) {
-		pr_err("scsi_device_get() failed for %d:%d:%d:%d\n",
+		pr_err("scsi_device_get() failed for %d:%d:%d:%llu\n",
 			sh->host_no, sd->channel, sd->id, sd->lun);
 		spin_unlock_irq(sh->host_lock);
 		return -EIO;
@@ -429,7 +429,7 @@
 		scsi_device_put(sd);
 		return ret;
 	}
-	pr_debug("CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%d\n",
+	pr_debug("CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%llu\n",
 		phv->phv_host_id, scsi_device_type(sd->type), sh->host_no,
 		sd->channel, sd->id, sd->lun);
 
@@ -452,7 +452,7 @@
 	if (ret)
 		return ret;
 
-	pr_debug("CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%d\n",
+	pr_debug("CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%llu\n",
 		phv->phv_host_id, scsi_device_type(sd->type), sh->host_no,
 		sd->channel, sd->id, sd->lun);
 	return 0;
diff --git a/drivers/usb/storage/sddr09.c b/drivers/usb/storage/sddr09.c
index 073a2c32c..38a4504 100644
--- a/drivers/usb/storage/sddr09.c
+++ b/drivers/usb/storage/sddr09.c
@@ -1498,7 +1498,7 @@
 {
 	int ret;
 
-	usb_stor_dbg(us, "LUN=%d\n", srb->device->lun);
+	usb_stor_dbg(us, "LUN=%d\n", (u8)srb->device->lun);
 
 	switch (srb->device->lun) {
 	case 0:
@@ -1524,7 +1524,7 @@
 		break;
 
 	default:
-		usb_stor_dbg(us, "Invalid LUN %d\n", srb->device->lun);
+	    usb_stor_dbg(us, "Invalid LUN %d\n", (u8)srb->device->lun);
 		ret = USB_STOR_TRANSPORT_ERROR;
 		break;
 	}
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index f1c9626..cedb292 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -347,14 +347,16 @@
 		 */
 		else if (us->srb->device->id &&
 				!(us->fflags & US_FL_SCM_MULT_TARG)) {
-			usb_stor_dbg(us, "Bad target number (%d:%d)\n",
-				     us->srb->device->id, us->srb->device->lun);
+			usb_stor_dbg(us, "Bad target number (%d:%llu)\n",
+				     us->srb->device->id,
+				     us->srb->device->lun);
 			us->srb->result = DID_BAD_TARGET << 16;
 		}
 
 		else if (us->srb->device->lun > us->max_lun) {
-			usb_stor_dbg(us, "Bad LUN (%d:%d)\n",
-				     us->srb->device->id, us->srb->device->lun);
+			usb_stor_dbg(us, "Bad LUN (%d:%llu)\n",
+				     us->srb->device->id,
+				     us->srb->device->lun);
 			us->srb->result = DID_BAD_TARGET << 16;
 		}