Merge branch 'linus' into x86/memtesttip-x86-memtest-2008-06-16_09.19_Mon

24 files changed, 159 insertions, 154 deletions

diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index b31faeccb9cd..867f6fd5c2c0 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -1278,7 +1278,7 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance)
 			error = 0;
 			/* Check for command packet errors */
 			if (full_command_packet->command.newcommand.status != 0) {
-				if (tw_dev->srb[request_id] != 0) {
+				if (tw_dev->srb[request_id] != NULL) {
 					error = twa_fill_sense(tw_dev, request_id, 1, 1);
 				} else {
 					/* Skip ioctl error prints */
@@ -1290,7 +1290,7 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance)
 
 			/* Check for correct state */
 			if (tw_dev->state[request_id] != TW_S_POSTED) {
-				if (tw_dev->srb[request_id] != 0) {
+				if (tw_dev->srb[request_id] != NULL) {
 					TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1a, "Received a request id that wasn't posted");
 					TW_CLEAR_ALL_INTERRUPTS(tw_dev);
 					goto twa_interrupt_bail;
@@ -1298,7 +1298,7 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance)
 			}
 
 			/* Check for internal command completion */
-			if (tw_dev->srb[request_id] == 0) {
+			if (tw_dev->srb[request_id] == NULL) {
 				if (request_id != tw_dev->chrdev_request_id) {
 					if (twa_aen_complete(tw_dev, request_id))
 						TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1b, "Error completing AEN during attention interrupt");
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index f5215fd4b73d..0899cb61e3dd 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -3582,7 +3582,7 @@ static int checksetup(struct aha152x_setup *setup)
 	if (i == ARRAY_SIZE(ports))
 		return 0;
 
-	if ( request_region(setup->io_port, IO_RANGE, "aha152x")==0 ) {
+	if (!request_region(setup->io_port, IO_RANGE, "aha152x")) {
 		printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port);
 		return 0;
 	}
@@ -3830,7 +3830,7 @@ static int __init aha152x_init(void)
 			iounmap(p);
 		}
 		if (!ok && setup_count == 0)
-			return 0;
+			return -ENODEV;
 
 		printk(KERN_INFO "aha152x: BIOS test: passed, ");
 #else
@@ -3842,7 +3842,7 @@ static int __init aha152x_init(void)
 			if ((setup_count == 1) && (setup[0].io_port == ports[i]))
 				continue;
 
-			if ( request_region(ports[i], IO_RANGE, "aha152x")==0 ) {
+			if (!request_region(ports[i], IO_RANGE, "aha152x")) {
 				printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]);
 				continue;
 			}
@@ -3909,14 +3909,14 @@ static int __init aha152x_init(void)
 #endif
 	}
 
-	return 1;
+	return 0;
 }
 
 static void __exit aha152x_exit(void)
 {
-	struct aha152x_hostdata *hd;
+	struct aha152x_hostdata *hd, *tmp;
 
-	list_for_each_entry(hd, &aha152x_host_list, host_list) {
+	list_for_each_entry_safe(hd, tmp, &aha152x_host_list, host_list) {
 		struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
 
 		aha152x_release(shost);
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index db6de5e6afb3..7d311541c76c 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -747,7 +747,7 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
 		dev->quhd[c] = 0;
 	}
 	workreq = dev->quereq[c][dev->quhd[c]];
-	if (dev->id[c][scmd_id(workreq)].curr_req == 0) {	
+	if (dev->id[c][scmd_id(workreq)].curr_req == NULL) {
 		dev->id[c][scmd_id(workreq)].curr_req = workreq;
 		dev->last_cmd[c] = scmd_id(workreq);
 		goto cmd_subp;
diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index 75c84d7b9ce8..c4b938bc30d3 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -910,9 +910,9 @@ static int ch_probe(struct device *dev)
 	ch->minor = minor;
 	sprintf(ch->name,"ch%d",ch->minor);
 
-	class_dev = device_create(ch_sysfs_class, dev,
-				  MKDEV(SCSI_CHANGER_MAJOR,ch->minor),
-				  "s%s", ch->name);
+	class_dev = device_create_drvdata(ch_sysfs_class, dev,
+					  MKDEV(SCSI_CHANGER_MAJOR, ch->minor),
+					  ch, "s%s", ch->name);
 	if (IS_ERR(class_dev)) {
 		printk(KERN_WARNING "ch%d: device_create failed\n",
 		       ch->minor);
@@ -926,7 +926,6 @@ static int ch_probe(struct device *dev)
 	if (init)
 		ch_init_elem(ch);
 
-	dev_set_drvdata(dev, ch);
 	sdev_printk(KERN_INFO, sd, "Attached scsi changer %s\n", ch->name);
 
 	return 0;
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 8e2e964af668..46771d4c81bd 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -550,7 +550,6 @@ static int __init gdth_search_isa(ulong32 bios_adr)
 #endif /* CONFIG_ISA */
 
 #ifdef CONFIG_PCI
-static bool gdth_pci_registered;
 
 static bool gdth_search_vortex(ushort device)
 {
@@ -3724,6 +3723,8 @@ static void gdth_log_event(gdth_evt_data *dvr, char *buffer)
 }
 
 #ifdef GDTH_STATISTICS
+static unchar	gdth_timer_running;
+
 static void gdth_timeout(ulong data)
 {
     ulong32 i;
@@ -3731,7 +3732,10 @@ static void gdth_timeout(ulong data)
     gdth_ha_str *ha;
     ulong flags;
 
-    BUG_ON(list_empty(&gdth_instances));
+    if(unlikely(list_empty(&gdth_instances))) {
+	    gdth_timer_running = 0;
+	    return;
+    }
 
     ha = list_first_entry(&gdth_instances, gdth_ha_str, list);
     spin_lock_irqsave(&ha->smp_lock, flags);
@@ -3751,6 +3755,22 @@ static void gdth_timeout(ulong data)
     add_timer(&gdth_timer);
     spin_unlock_irqrestore(&ha->smp_lock, flags);
 }
+
+static void gdth_timer_init(void)
+{
+	if (gdth_timer_running)
+		return;
+	gdth_timer_running = 1;
+	TRACE2(("gdth_detect(): Initializing timer !\n"));
+	gdth_timer.expires = jiffies + HZ;
+	gdth_timer.data = 0L;
+	gdth_timer.function = gdth_timeout;
+	add_timer(&gdth_timer);
+}
+#else
+static inline void gdth_timer_init(void)
+{
+}
 #endif
 
 static void __init internal_setup(char *str,int *ints)
@@ -4735,6 +4755,7 @@ static int __init gdth_isa_probe_one(ulong32 isa_bios)
 	if (error)
 		goto out_free_coal_stat;
 	list_add_tail(&ha->list, &gdth_instances);
+	gdth_timer_init();
 
 	scsi_scan_host(shp);
 
@@ -4865,6 +4886,7 @@ static int __init gdth_eisa_probe_one(ushort eisa_slot)
 	if (error)
 		goto out_free_coal_stat;
 	list_add_tail(&ha->list, &gdth_instances);
+	gdth_timer_init();
 
 	scsi_scan_host(shp);
 
@@ -5011,6 +5033,7 @@ static int gdth_pci_probe_one(gdth_pci_str *pcistr,
 	list_add_tail(&ha->list, &gdth_instances);
 
 	pci_set_drvdata(ha->pdev, ha);
+	gdth_timer_init();
 
 	scsi_scan_host(shp);
 
@@ -5110,6 +5133,7 @@ static int __init gdth_init(void)
 	/* initializations */
 	gdth_polling = TRUE;
 	gdth_clear_events();
+	init_timer(&gdth_timer);
 
 	/* As default we do not probe for EISA or ISA controllers */
 	if (probe_eisa_isa) {
@@ -5132,23 +5156,17 @@ static int __init gdth_init(void)
 
 #ifdef CONFIG_PCI
 	/* scanning for PCI controllers */
-	if (pci_register_driver(&gdth_pci_driver) == 0)
-		gdth_pci_registered = true;
+	if (pci_register_driver(&gdth_pci_driver)) {
+		gdth_ha_str *ha;
+
+		list_for_each_entry(ha, &gdth_instances, list)
+			gdth_remove_one(ha);
+		return -ENODEV;
+	}
 #endif /* CONFIG_PCI */
 
 	TRACE2(("gdth_detect() %d controller detected\n", gdth_ctr_count));
 
-	if (list_empty(&gdth_instances))
-		return -ENODEV;
-
-#ifdef GDTH_STATISTICS
-	TRACE2(("gdth_detect(): Initializing timer !\n"));
-	init_timer(&gdth_timer);
-	gdth_timer.expires = jiffies + HZ;
-	gdth_timer.data = 0L;
-	gdth_timer.function = gdth_timeout;
-	add_timer(&gdth_timer);
-#endif
 	major = register_chrdev(0,"gdth", &gdth_fops);
 	register_reboot_notifier(&gdth_notifier);
 	gdth_polling = FALSE;
@@ -5167,8 +5185,7 @@ static void __exit gdth_exit(void)
 #endif
 
 #ifdef CONFIG_PCI
-	if (gdth_pci_registered)
-		pci_unregister_driver(&gdth_pci_driver);
+	pci_unregister_driver(&gdth_pci_driver);
 #endif
 
 	list_for_each_entry(ha, &gdth_instances, list)
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index aaa48e0c8ed0..da876d3924be 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -444,7 +444,7 @@ static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index)
 	if (!(pci_resource_flags(pcidev, index) & IORESOURCE_MEM)) {
 		printk(KERN_ERR "scsi%d: pci resource invalid\n",
 				hba->host->host_no);
-		return 0;
+		return NULL;
 	}
 
 	mem_base_phy = pci_resource_start(pcidev, index);
@@ -454,7 +454,7 @@ static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index)
 	if (!mem_base_virt) {
 		printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n",
 				hba->host->host_no);
-		return 0;
+		return NULL;
 	}
 	return mem_base_virt;
 }
@@ -476,11 +476,11 @@ static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba)
 static int hptiop_map_pci_bar_mv(struct hptiop_hba *hba)
 {
 	hba->u.mv.regs = hptiop_map_pci_bar(hba, 0);
-	if (hba->u.mv.regs == 0)
+	if (hba->u.mv.regs == NULL)
 		return -1;
 
 	hba->u.mv.mu = hptiop_map_pci_bar(hba, 2);
-	if (hba->u.mv.mu == 0) {
+	if (hba->u.mv.mu == NULL) {
 		iounmap(hba->u.mv.regs);
 		return -1;
 	}
@@ -1210,8 +1210,8 @@ static void hptiop_remove(struct pci_dev *pcidev)
 
 static struct hptiop_adapter_ops hptiop_itl_ops = {
 	.iop_wait_ready    = iop_wait_ready_itl,
-	.internal_memalloc = 0,
-	.internal_memfree  = 0,
+	.internal_memalloc = NULL,
+	.internal_memfree  = NULL,
 	.map_pci_bar       = hptiop_map_pci_bar_itl,
 	.unmap_pci_bar     = hptiop_unmap_pci_bar_itl,
 	.enable_intr       = hptiop_enable_intr_itl,
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index ccfd8aca3765..5d23368a1bce 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -1348,7 +1348,7 @@ void ibmvscsi_handle_crq(struct viosrp_crq *crq,
 
 	del_timer(&evt_struct->timer);
 
-	if (crq->status != VIOSRP_OK && evt_struct->cmnd)
+	if ((crq->status != VIOSRP_OK && crq->status != VIOSRP_OK2) && evt_struct->cmnd)
 		evt_struct->cmnd->result = DID_ERROR << 16;
 	if (evt_struct->done)
 		evt_struct->done(evt_struct);
diff --git a/drivers/scsi/ibmvscsi/viosrp.h b/drivers/scsi/ibmvscsi/viosrp.h
index 4c4aadb3e405..204604501ad8 100644
--- a/drivers/scsi/ibmvscsi/viosrp.h
+++ b/drivers/scsi/ibmvscsi/viosrp.h
@@ -65,7 +65,8 @@ enum viosrp_crq_status {
 	VIOSRP_VIOLATES_MAX_XFER = 0x2,
 	VIOSRP_PARTNER_PANIC = 0x3,
 	VIOSRP_DEVICE_BUSY = 0x8,
-	VIOSRP_ADAPTER_FAIL = 0x10
+	VIOSRP_ADAPTER_FAIL = 0x10,
+	VIOSRP_OK2 = 0x99,
 };
 
 struct viosrp_crq {
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 010c1b9b178c..b43bf1d60dac 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -730,7 +730,9 @@ static int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 				if (iscsi_recv_pdu(conn->cls_conn, hdr, data,
 						   datalen))
 					rc = ISCSI_ERR_CONN_FAILED;
-			}
+			} else
+				mod_timer(&conn->transport_timer,
+					  jiffies + conn->recv_timeout);
 			iscsi_free_mgmt_task(conn, mtask);
 			break;
 		default:
@@ -1453,19 +1455,20 @@ static void iscsi_check_transport_timeouts(unsigned long data)
 {
 	struct iscsi_conn *conn = (struct iscsi_conn *)data;
 	struct iscsi_session *session = conn->session;
-	unsigned long timeout, next_timeout = 0, last_recv;
+	unsigned long recv_timeout, next_timeout = 0, last_recv;
 
 	spin_lock(&session->lock);
 	if (session->state != ISCSI_STATE_LOGGED_IN)
 		goto done;
 
-	timeout = conn->recv_timeout;
-	if (!timeout)
+	recv_timeout = conn->recv_timeout;
+	if (!recv_timeout)
 		goto done;
 
-	timeout *= HZ;
+	recv_timeout *= HZ;
 	last_recv = conn->last_recv;
-	if (time_before_eq(last_recv + timeout + (conn->ping_timeout * HZ),
+	if (conn->ping_mtask &&
+	    time_before_eq(conn->last_ping + (conn->ping_timeout * HZ),
 			   jiffies)) {
 		iscsi_conn_printk(KERN_ERR, conn, "ping timeout of %d secs "
 				  "expired, last rx %lu, last ping %lu, "
@@ -1476,15 +1479,13 @@ static void iscsi_check_transport_timeouts(unsigned long data)
 		return;
 	}
 
-	if (time_before_eq(last_recv + timeout, jiffies)) {
-		if (time_before_eq(conn->last_ping, last_recv)) {
-			/* send a ping to try to provoke some traffic */
-			debug_scsi("Sending nopout as ping on conn %p\n", conn);
-			iscsi_send_nopout(conn, NULL);
-		}
-		next_timeout = last_recv + timeout + (conn->ping_timeout * HZ);
+	if (time_before_eq(last_recv + recv_timeout, jiffies)) {
+		/* send a ping to try to provoke some traffic */
+		debug_scsi("Sending nopout as ping on conn %p\n", conn);
+		iscsi_send_nopout(conn, NULL);
+		next_timeout = conn->last_ping + (conn->ping_timeout * HZ);
 	} else
-		next_timeout = last_recv + timeout;
+		next_timeout = last_recv + recv_timeout;
 
 	debug_scsi("Setting next tmo %lu\n", next_timeout);
 	mod_timer(&conn->transport_timer, next_timeout);
diff --git a/drivers/scsi/mac_esp.c b/drivers/scsi/mac_esp.c
index cd37bd69a115..887682a24e36 100644
--- a/drivers/scsi/mac_esp.c
+++ b/drivers/scsi/mac_esp.c
@@ -650,7 +650,7 @@ static void __exit mac_esp_exit(void)
 
 MODULE_DESCRIPTION("Mac ESP SCSI driver");
 MODULE_AUTHOR("Finn Thain <fthain@telegraphics.com.au>");
-MODULE_LICENSE("GPLv2");
+MODULE_LICENSE("GPL v2");
 MODULE_VERSION(DRV_VERSION);
 
 module_init(mac_esp_init);
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 31f7aec44d90..243d8becd30f 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -5695,13 +5695,12 @@ static int osst_sysfs_add(dev_t dev, struct device *device, struct osst_tape * S
 	struct device *osst_member;
 	int err;
 
-	osst_member = device_create(osst_sysfs_class, device, dev, "%s", name);
+	osst_member = device_create_drvdata(osst_sysfs_class, device, dev, STp, "%s", name);
 	if (IS_ERR(osst_member)) {
 		printk(KERN_WARNING "osst :W: Unable to add sysfs class member %s\n", name);
 		return PTR_ERR(osst_member);
 	}
 
-	dev_set_drvdata(osst_member, STp);
 	err = device_create_file(osst_member, &dev_attr_ADR_rev);
 	if (err)
 		goto err_out;
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index fa060932d2b4..3754ab87f89a 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -2007,7 +2007,7 @@ qla1280_set_defaults(struct scsi_qla_host *ha)
 		nv->bus[bus].config_2.req_ack_active_negation = 1;
 		nv->bus[bus].config_2.data_line_active_negation = 1;
 		nv->bus[bus].selection_timeout = 250;
-		nv->bus[bus].max_queue_depth = 256;
+		nv->bus[bus].max_queue_depth = 32;
 
 		if (IS_ISP1040(ha)) {
 			nv->bus[bus].bus_reset_delay = 3;
@@ -2051,7 +2051,7 @@ qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
 	status = qla1280_mailbox_command(ha, 0x0f, mb);
 
 	/* Save Tag queuing enable flag. */
-	flag = (BIT_0 << target) & mb[0];
+	flag = (BIT_0 << target);
 	if (nv->bus[bus].target[target].parameter.tag_queuing)
 		ha->bus_settings[bus].qtag_enables |= flag;
 
@@ -2811,7 +2811,7 @@ qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
 
 	/* Check for room in outstanding command list. */
 	for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
-		     ha->outstanding_cmds[cnt] != 0; cnt++);
+		     ha->outstanding_cmds[cnt] != NULL; cnt++);
 
 	if (cnt >= MAX_OUTSTANDING_COMMANDS) {
 		status = 1;
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 287690853caf..8dd88fc1244a 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -70,6 +70,9 @@ qla2x00_sysfs_write_fw_dump(struct kobject *kobj,
 	case 2:
 		qla2x00_alloc_fw_dump(ha);
 		break;
+	case 3:
+		qla2x00_system_error(ha);
+		break;
 	}
 	return (count);
 }
@@ -886,9 +889,13 @@ qla2x00_get_host_speed(struct Scsi_Host *shost)
 static void
 qla2x00_get_host_port_type(struct Scsi_Host *shost)
 {
-	scsi_qla_host_t *ha = to_qla_parent(shost_priv(shost));
+	scsi_qla_host_t *ha = shost_priv(shost);
 	uint32_t port_type = FC_PORTTYPE_UNKNOWN;
 
+	if (ha->parent) {
+		fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
+		return;
+	}
 	switch (ha->current_topology) {
 	case ISP_CFG_NL:
 		port_type = FC_PORTTYPE_LPORT;
@@ -1172,10 +1179,10 @@ qla24xx_vport_delete(struct fc_vport *fc_vport)
 	qla24xx_disable_vp(vha);
 	qla24xx_deallocate_vp_id(vha);
 
-	down(&ha->vport_sem);
+	mutex_lock(&ha->vport_lock);
 	ha->cur_vport_count--;
 	clear_bit(vha->vp_idx, ha->vp_idx_map);
-	up(&ha->vport_sem);
+	mutex_unlock(&ha->vport_lock);
 
 	kfree(vha->node_name);
 	kfree(vha->port_name);
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 299eccf6cabd..8dd600013bd1 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2457,7 +2457,7 @@ typedef struct scsi_qla_host {
 #define MBX_INTR_WAIT	2
 #define MBX_UPDATE_FLASH_ACTIVE	3
 
-	struct semaphore vport_sem;	/* Virtual port synchronization */
+	struct mutex vport_lock;	/* Virtual port synchronization */
 	struct completion mbx_cmd_comp;	/* Serialize mbx access */
 	struct completion mbx_intr_comp;  /* Used for completion notification */
 
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index f8827068d30f..9b4bebee6879 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -228,6 +228,9 @@ extern int qla24xx_abort_target(struct fc_port *, unsigned int);
 extern int qla24xx_lun_reset(struct fc_port *, unsigned int);
 
 extern int
+qla2x00_system_error(scsi_qla_host_t *);
+
+extern int
 qla2x00_set_serdes_params(scsi_qla_host_t *, uint16_t, uint16_t, uint16_t);
 
 extern int
diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h
index e9bae27737d1..92fafbdbbaab 100644
--- a/drivers/scsi/qla2xxx/qla_inline.h
+++ b/drivers/scsi/qla2xxx/qla_inline.h
@@ -34,7 +34,11 @@ qla2x00_debounce_register(volatile uint16_t __iomem *addr)
 static inline void
 qla2x00_poll(scsi_qla_host_t *ha)
 {
+	unsigned long flags;
+
+	local_irq_save(flags);
 	ha->isp_ops->intr_handler(0, ha);
+	local_irq_restore(flags);
 }
 
 static __inline__ scsi_qla_host_t *
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 5d9a64a7879b..ec63b79f900a 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -272,8 +272,6 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
 	uint32_t	rscn_entry, host_pid;
 	uint8_t		rscn_queue_index;
 	unsigned long	flags;
-	scsi_qla_host_t	*vha;
-	int		i;
 
 	/* Setup to process RIO completion. */
 	handle_cnt = 0;
@@ -544,18 +542,10 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
 		break;
 
 	case MBA_PORT_UPDATE:		/* Port database update */
-		if ((ha->flags.npiv_supported) && (ha->num_vhosts)) {
-			for_each_mapped_vp_idx(ha, i) {
-				list_for_each_entry(vha, &ha->vp_list,
-				    vp_list) {
-					if ((mb[3] & 0xff)
-					    == vha->vp_idx) {
-						ha = vha;
-						break;
-					}
-				}
-			}
-		}
+		/* Only handle SCNs for our Vport index. */
+		if (ha->parent && ha->vp_idx != (mb[3] & 0xff))
+			break;
+
 		/*
 		 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
 		 * event etc. earlier indicating loop is down) then process
@@ -590,18 +580,12 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
 		break;
 
 	case MBA_RSCN_UPDATE:		/* State Change Registration */
-		if ((ha->flags.npiv_supported) && (ha->num_vhosts)) {
-			for_each_mapped_vp_idx(ha, i) {
-				list_for_each_entry(vha, &ha->vp_list,
-				    vp_list) {
-					if ((mb[3] & 0xff)
-					    == vha->vp_idx) {
-						ha = vha;
-						break;
-					}
-				}
-			}
-		}
+		/* Check if the Vport has issued a SCR */
+		if (ha->parent && test_bit(VP_SCR_NEEDED, &ha->vp_flags))
+			break;
+		/* Only handle SCNs for our Vport index. */
+		if (ha->parent && ha->vp_idx != (mb[3] & 0xff))
+			break;
 
 		DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
 		    ha->host_no));
@@ -1132,25 +1116,6 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
 				break;
 
 			qla2x00_handle_sense(sp, sense_data, sense_len);
-
-			/*
-			 * In case of a Underrun condition, set both the lscsi
-			 * status and the completion status to appropriate
-			 * values.
-			 */
-			if (resid &&
-			    ((unsigned)(scsi_bufflen(cp) - resid) <
-			     cp->underflow)) {
-				DEBUG2(qla_printk(KERN_INFO, ha,
-				    "scsi(%ld:%d:%d:%d): Mid-layer underflow "
-				    "detected (%x of %x bytes)...returning "
-				    "error status.\n", ha->host_no,
-				    cp->device->channel, cp->device->id,
-				    cp->device->lun, resid,
-				    scsi_bufflen(cp)));
-
-				cp->result = DID_ERROR << 16 | lscsi_status;
-			}
 		} else {
 			/*
 			 * If RISC reports underrun and target does not report
@@ -1639,12 +1604,12 @@ qla24xx_msix_rsp_q(int irq, void *dev_id)
 	ha = dev_id;
 	reg = &ha->iobase->isp24;
 
-	spin_lock(&ha->hardware_lock);
+	spin_lock_irq(&ha->hardware_lock);
 
 	qla24xx_process_response_queue(ha);
 	WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
 
-	spin_unlock(&ha->hardware_lock);
+	spin_unlock_irq(&ha->hardware_lock);
 
 	return IRQ_HANDLED;
 }
@@ -1663,7 +1628,7 @@ qla24xx_msix_default(int irq, void *dev_id)
 	reg = &ha->iobase->isp24;
 	status = 0;
 
-	spin_lock(&ha->hardware_lock);
+	spin_lock_irq(&ha->hardware_lock);
 	do {
 		stat = RD_REG_DWORD(&reg->host_status);
 		if (stat & HSRX_RISC_PAUSED) {
@@ -1716,7 +1681,7 @@ qla24xx_msix_default(int irq, void *dev_id)
 		}
 		WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
 	} while (0);
-	spin_unlock(&ha->hardware_lock);
+	spin_unlock_irq(&ha->hardware_lock);
 
 	if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
 	    (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 210060420809..250d2f604397 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -2303,8 +2303,6 @@ qla24xx_lun_reset(struct fc_port *fcport, unsigned int l)
 	return __qla24xx_issue_tmf("Lun", TCF_LUN_RESET, fcport, l);
 }
 
-#if 0
-
 int
 qla2x00_system_error(scsi_qla_host_t *ha)
 {
@@ -2312,7 +2310,7 @@ qla2x00_system_error(scsi_qla_host_t *ha)
 	mbx_cmd_t mc;
 	mbx_cmd_t *mcp = &mc;
 
-	if (!IS_FWI2_CAPABLE(ha))
+	if (!IS_QLA23XX(ha) && !IS_FWI2_CAPABLE(ha))
 		return QLA_FUNCTION_FAILED;
 
 	DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));
@@ -2334,8 +2332,6 @@ qla2x00_system_error(scsi_qla_host_t *ha)
 	return rval;
 }
 
-#endif  /*  0  */
-
 /**
  * qla2x00_set_serdes_params() -
  * @ha: HA context
@@ -2508,7 +2504,7 @@ qla2x00_enable_fce_trace(scsi_qla_host_t *ha, dma_addr_t fce_dma,
 		if (mb)
 			memcpy(mb, mcp->mb, 8 * sizeof(*mb));
 		if (dwords)
-			*dwords = mcp->mb[6];
+			*dwords = buffers;
 	}
 
 	return rval;
@@ -2807,9 +2803,9 @@ qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
 	 */
 	map = (vp_index - 1) / 8;
 	pos = (vp_index - 1) & 7;
-	down(&ha->vport_sem);
+	mutex_lock(&ha->vport_lock);
 	vce->vp_idx_map[map] |= 1 << pos;
-	up(&ha->vport_sem);
+	mutex_unlock(&ha->vport_lock);
 
 	rval = qla2x00_issue_iocb(ha, vce, vce_dma, 0);
 	if (rval != QLA_SUCCESS) {
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index f2b04979e5f0..62a3ad6e8ecb 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -32,12 +32,12 @@ qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
 	scsi_qla_host_t *ha = vha->parent;
 
 	/* Find an empty slot and assign an vp_id */
-	down(&ha->vport_sem);
+	mutex_lock(&ha->vport_lock);
 	vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
 	if (vp_id > ha->max_npiv_vports) {
 		DEBUG15(printk ("vp_id %d is bigger than max-supported %d.\n",
 		    vp_id, ha->max_npiv_vports));
-		up(&ha->vport_sem);
+		mutex_unlock(&ha->vport_lock);
 		return vp_id;
 	}
 
@@ -45,7 +45,7 @@ qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
 	ha->num_vhosts++;
 	vha->vp_idx = vp_id;
 	list_add_tail(&vha->vp_list, &ha->vp_list);
-	up(&ha->vport_sem);
+	mutex_unlock(&ha->vport_lock);
 	return vp_id;
 }
 
@@ -55,12 +55,12 @@ qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
 	uint16_t vp_id;
 	scsi_qla_host_t *ha = vha->parent;
 
-	down(&ha->vport_sem);
+	mutex_lock(&ha->vport_lock);
 	vp_id = vha->vp_idx;
 	ha->num_vhosts--;
 	clear_bit(vp_id, ha->vp_idx_map);
 	list_del(&vha->vp_list);
-	up(&ha->vport_sem);
+	mutex_unlock(&ha->vport_lock);
 }
 
 static scsi_qla_host_t *
@@ -145,9 +145,9 @@ qla24xx_enable_vp(scsi_qla_host_t *vha)
 	}
 
 	/* Initialize the new vport unless it is a persistent port */
-	down(&ha->vport_sem);
+	mutex_lock(&ha->vport_lock);
 	ret = qla24xx_modify_vp_config(vha);
-	up(&ha->vport_sem);
+	mutex_unlock(&ha->vport_lock);
 
 	if (ret != QLA_SUCCESS) {
 		fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
@@ -406,6 +406,7 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
 	INIT_LIST_HEAD(&vha->list);
 	INIT_LIST_HEAD(&vha->fcports);
 	INIT_LIST_HEAD(&vha->vp_fcports);
+	INIT_LIST_HEAD(&vha->work_list);
 
 	vha->dpc_flags = 0L;
 	set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
@@ -437,10 +438,10 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
 	vha->flags.init_done = 1;
 	num_hosts++;
 
-	down(&ha->vport_sem);
+	mutex_lock(&ha->vport_lock);
 	set_bit(vha->vp_idx, ha->vp_idx_map);
 	ha->cur_vport_count++;
-	up(&ha->vport_sem);
+	mutex_unlock(&ha->vport_lock);
 
 	return vha;
 
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 3223fd16bcfe..48eaa3bb5433 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -10,6 +10,7 @@
 #include <linux/vmalloc.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
+#include <linux/mutex.h>
 
 #include <scsi/scsi_tcq.h>
 #include <scsi/scsicam.h>
@@ -1631,7 +1632,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	/* load the F/W, read paramaters, and init the H/W */
 	ha->instance = num_hosts;
 
-	init_MUTEX(&ha->vport_sem);
+	mutex_init(&ha->vport_lock);
 	init_completion(&ha->mbx_cmd_comp);
 	complete(&ha->mbx_cmd_comp);
 	init_completion(&ha->mbx_intr_comp);
@@ -2156,13 +2157,14 @@ static int
 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
 {
 	unsigned long flags;
+	scsi_qla_host_t *pha = to_qla_parent(ha);
 
 	if (!locked)
-		spin_lock_irqsave(&ha->hardware_lock, flags);
+		spin_lock_irqsave(&pha->hardware_lock, flags);
 	list_add_tail(&e->list, &ha->work_list);
 	qla2xxx_wake_dpc(ha);
 	if (!locked)
-		spin_unlock_irqrestore(&ha->hardware_lock, flags);
+		spin_unlock_irqrestore(&pha->hardware_lock, flags);
 	return QLA_SUCCESS;
 }
 
@@ -2202,12 +2204,13 @@ static void
 qla2x00_do_work(struct scsi_qla_host *ha)
 {
 	struct qla_work_evt *e;
+	scsi_qla_host_t *pha = to_qla_parent(ha);
 
-	spin_lock_irq(&ha->hardware_lock);
+	spin_lock_irq(&pha->hardware_lock);
 	while (!list_empty(&ha->work_list)) {
 		e = list_entry(ha->work_list.next, struct qla_work_evt, list);
 		list_del_init(&e->list);
-		spin_unlock_irq(&ha->hardware_lock);
+		spin_unlock_irq(&pha->hardware_lock);
 
 		switch (e->type) {
 		case QLA_EVT_AEN:
@@ -2221,9 +2224,9 @@ qla2x00_do_work(struct scsi_qla_host *ha)
 		}
 		if (e->flags & QLA_EVT_FLAG_FREE)
 			kfree(e);
-		spin_lock_irq(&ha->hardware_lock);
+		spin_lock_irq(&pha->hardware_lock);
 	}
-	spin_unlock_irq(&ha->hardware_lock);
+	spin_unlock_irq(&pha->hardware_lock);
 }
 
 /**************************************************************************
@@ -2634,7 +2637,7 @@ qla2x00_timer(scsi_qla_host_t *ha)
 #define FW_FILE_ISP24XX	"ql2400_fw.bin"
 #define FW_FILE_ISP25XX	"ql2500_fw.bin"
 
-static DECLARE_MUTEX(qla_fw_lock);
+static DEFINE_MUTEX(qla_fw_lock);
 
 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
 	{ .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
@@ -2665,7 +2668,7 @@ qla2x00_request_firmware(scsi_qla_host_t *ha)
 		blob = &qla_fw_blobs[FW_ISP25XX];
 	}
 
-	down(&qla_fw_lock);
+	mutex_lock(&qla_fw_lock);
 	if (blob->fw)
 		goto out;
 
@@ -2678,7 +2681,7 @@ qla2x00_request_firmware(scsi_qla_host_t *ha)
 	}
 
 out:
-	up(&qla_fw_lock);
+	mutex_unlock(&qla_fw_lock);
 	return blob;
 }
 
@@ -2687,11 +2690,11 @@ qla2x00_release_firmware(void)
 {
 	int idx;
 
-	down(&qla_fw_lock);
+	mutex_lock(&qla_fw_lock);
 	for (idx = 0; idx < FW_BLOBS; idx++)
 		if (qla_fw_blobs[idx].fw)
 			release_firmware(qla_fw_blobs[idx].fw);
-	up(&qla_fw_lock);
+	mutex_unlock(&qla_fw_lock);
 }
 
 static pci_ers_result_t
@@ -2864,7 +2867,8 @@ qla2x00_module_init(void)
 		return -ENODEV;
 	}
 
-	printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
+	printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
+	    qla2x00_version_str);
 	ret = pci_register_driver(&qla2xxx_pci_driver);
 	if (ret) {
 		kmem_cache_destroy(srb_cachep);
diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h
index afeae2bfe7eb..d058c8862b35 100644
--- a/drivers/scsi/qla2xxx/qla_version.h
+++ b/drivers/scsi/qla2xxx/qla_version.h
@@ -7,7 +7,7 @@
 /*
  * Driver version
  */
-#define QLA2XXX_VERSION      "8.02.01-k2"
+#define QLA2XXX_VERSION      "8.02.01-k4"
 
 #define QLA_DRIVER_MAJOR_VER	8
 #define QLA_DRIVER_MINOR_VER	2
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 049103f1d16f..93d2b6714453 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -359,7 +359,12 @@ static int scsi_bus_match(struct device *dev, struct device_driver *gendrv)
 
 static int scsi_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
-	struct scsi_device *sdev = to_scsi_device(dev);
+	struct scsi_device *sdev;
+
+	if (dev->type != &scsi_dev_type)
+		return 0;
+
+	sdev = to_scsi_device(dev);
 
 	add_uevent_var(env, "MODALIAS=" SCSI_DEVICE_MODALIAS_FMT, sdev->type);
 	return 0;
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index c9d7f721b9e2..ea0edd1b2e76 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1441,17 +1441,18 @@ sg_add(struct device *cl_dev, struct class_interface *cl_intf)
 	if (sg_sysfs_valid) {
 		struct device *sg_class_member;
 
-		sg_class_member = device_create(sg_sysfs_class, cl_dev->parent,
-						MKDEV(SCSI_GENERIC_MAJOR,
-						      sdp->index),
-						"%s", disk->disk_name);
+		sg_class_member = device_create_drvdata(sg_sysfs_class,
+							cl_dev->parent,
+							MKDEV(SCSI_GENERIC_MAJOR,
+							      sdp->index),
+							sdp,
+							"%s", disk->disk_name);
 		if (IS_ERR(sg_class_member)) {
 			printk(KERN_ERR "sg_add: "
 			       "device_create failed\n");
 			error = PTR_ERR(sg_class_member);
 			goto cdev_add_err;
 		}
-		dev_set_drvdata(sg_class_member, sdp);
 		error = sysfs_create_link(&scsidp->sdev_gendev.kobj,
 					  &sg_class_member->kobj, "generic");
 		if (error)
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index e8db66ad0bde..6e5a5bb31311 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4424,17 +4424,19 @@ static int do_create_class_files(struct scsi_tape *STp, int dev_num, int mode)
 		snprintf(name, 10, "%s%s%s", rew ? "n" : "",
 			 STp->disk->disk_name, st_formats[i]);
 		st_class_member =
-			device_create(st_sysfs_class, &STp->device->sdev_gendev,
-				      MKDEV(SCSI_TAPE_MAJOR,
-						TAPE_MINOR(dev_num, mode, rew)),
-				      "%s", name);
+			device_create_drvdata(st_sysfs_class,
+					      &STp->device->sdev_gendev,
+					      MKDEV(SCSI_TAPE_MAJOR,
+						    TAPE_MINOR(dev_num,
+							      mode, rew)),
+					      &STp->modes[mode],
+					      "%s", name);
 		if (IS_ERR(st_class_member)) {
 			printk(KERN_WARNING "st%d: device_create failed\n",
 			       dev_num);
 			error = PTR_ERR(st_class_member);
 			goto out;
 		}
-		dev_set_drvdata(st_class_member, &STp->modes[mode]);
 
 		error = device_create_file(st_class_member,
 					   &dev_attr_defined);