Merge commit 'scsi/master'

8 files changed, 180 insertions, 168 deletions

diff --git a/drivers/scsi/aic94xx/aic94xx.h b/drivers/scsi/aic94xx/aic94xx.h
index 32f513b1b78a..aee235fde34a 100644
--- a/drivers/scsi/aic94xx/aic94xx.h
+++ b/drivers/scsi/aic94xx/aic94xx.h
@@ -58,7 +58,6 @@
 
 extern struct kmem_cache *asd_dma_token_cache;
 extern struct kmem_cache *asd_ascb_cache;
-extern char sas_addr_str[2*SAS_ADDR_SIZE + 1];
 
 static inline void asd_stringify_sas_addr(char *p, const u8 *sas_addr)
 {
@@ -68,21 +67,6 @@ static inline void asd_stringify_sas_addr(char *p, const u8 *sas_addr)
 	*p = '\0';
 }
 
-static inline void asd_destringify_sas_addr(u8 *sas_addr, const char *p)
-{
-	int i;
-	for (i = 0; i < SAS_ADDR_SIZE; i++) {
-		u8 h, l;
-		if (!*p)
-			break;
-		h = isdigit(*p) ? *p-'0' : *p-'A'+10;
-		p++;
-		l = isdigit(*p) ? *p-'0' : *p-'A'+10;
-		p++;
-		sas_addr[i] = (h<<4) | l;
-	}
-}
-
 struct asd_ha_struct;
 struct asd_ascb;
 
diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.c b/drivers/scsi/aic94xx/aic94xx_hwi.c
index 098b5f39cd31..940a207a42fb 100644
--- a/drivers/scsi/aic94xx/aic94xx_hwi.c
+++ b/drivers/scsi/aic94xx/aic94xx_hwi.c
@@ -27,6 +27,7 @@
 #include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <linux/firmware.h>
 
 #include "aic94xx.h"
 #include "aic94xx_reg.h"
@@ -38,16 +39,14 @@ u32 MBAR0_SWB_SIZE;
 
 /* ---------- Initialization ---------- */
 
-static void asd_get_user_sas_addr(struct asd_ha_struct *asd_ha)
+static int asd_get_user_sas_addr(struct asd_ha_struct *asd_ha)
 {
-	extern char sas_addr_str[];
-	/* If the user has specified a WWN it overrides other settings
-	 */
-	if (sas_addr_str[0] != '\0')
-		asd_destringify_sas_addr(asd_ha->hw_prof.sas_addr,
-					 sas_addr_str);
-	else if (asd_ha->hw_prof.sas_addr[0] != 0)
-		asd_stringify_sas_addr(sas_addr_str, asd_ha->hw_prof.sas_addr);
+	/* adapter came with a sas address */
+	if (asd_ha->hw_prof.sas_addr[0])
+		return 0;
+
+	return sas_request_addr(asd_ha->sas_ha.core.shost,
+				asd_ha->hw_prof.sas_addr);
 }
 
 static void asd_propagate_sas_addr(struct asd_ha_struct *asd_ha)
@@ -657,8 +656,7 @@ int asd_init_hw(struct asd_ha_struct *asd_ha)
 
 	asd_init_ctxmem(asd_ha);
 
-	asd_get_user_sas_addr(asd_ha);
-	if (!asd_ha->hw_prof.sas_addr[0]) {
+	if (asd_get_user_sas_addr(asd_ha)) {
 		asd_printk("No SAS Address provided for %s\n",
 			   pci_name(asd_ha->pcidev));
 		err = -ENODEV;
diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
index 5d761eb67442..1824b0bb1846 100644
--- a/drivers/scsi/aic94xx/aic94xx_init.c
+++ b/drivers/scsi/aic94xx/aic94xx_init.c
@@ -56,8 +56,6 @@ MODULE_PARM_DESC(collector, "\n"
 	"\tThe aic94xx SAS LLDD supports both modes.\n"
 	"\tDefault: 0 (Direct Mode).\n");
 
-char sas_addr_str[2*SAS_ADDR_SIZE + 1] = "";
-
 static struct scsi_transport_template *aic94xx_transport_template;
 static int asd_scan_finished(struct Scsi_Host *, unsigned long);
 static void asd_scan_start(struct Scsi_Host *);
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 6d67f5c0eb8e..ad9aff2ad4fc 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -595,125 +595,111 @@ static int __init gdth_search_isa(ulong32 bios_adr)
 #endif /* CONFIG_ISA */
 
 #ifdef CONFIG_PCI
-static void gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
-                            ushort vendor, ushort dev);
+static bool gdth_pci_registered;
 
-static int __init gdth_search_pci(gdth_pci_str *pcistr)
+static bool gdth_search_vortex(ushort device)
 {
-    ushort device, cnt;
-    
-    TRACE(("gdth_search_pci()\n"));
-
-    cnt = 0;
-    for (device = 0; device <= PCI_DEVICE_ID_VORTEX_GDT6555; ++device)
-        gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
-    for (device = PCI_DEVICE_ID_VORTEX_GDT6x17RP; 
-         device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP; ++device)
-        gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
-    gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, 
-                    PCI_DEVICE_ID_VORTEX_GDTNEWRX);
-    gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, 
-                    PCI_DEVICE_ID_VORTEX_GDTNEWRX2);
-    gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
-                    PCI_DEVICE_ID_INTEL_SRC);
-    gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
-                    PCI_DEVICE_ID_INTEL_SRC_XSCALE);
-    return cnt;
+	if (device <= PCI_DEVICE_ID_VORTEX_GDT6555)
+		return true;
+	if (device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP &&
+	    device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP)
+		return true;
+	if (device == PCI_DEVICE_ID_VORTEX_GDTNEWRX ||
+	    device == PCI_DEVICE_ID_VORTEX_GDTNEWRX2)
+		return true;
+	return false;
 }
 
+static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out);
+static int gdth_pci_init_one(struct pci_dev *pdev,
+			     const struct pci_device_id *ent);
+static void gdth_pci_remove_one(struct pci_dev *pdev);
+static void gdth_remove_one(gdth_ha_str *ha);
+
 /* Vortex only makes RAID controllers.
  * We do not really want to specify all 550 ids here, so wildcard match.
  */
-static struct pci_device_id gdthtable[] __maybe_unused = {
-    {PCI_VENDOR_ID_VORTEX,PCI_ANY_ID,PCI_ANY_ID, PCI_ANY_ID},
-    {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC,PCI_ANY_ID,PCI_ANY_ID}, 
-    {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC_XSCALE,PCI_ANY_ID,PCI_ANY_ID}, 
-    {0}
+static const struct pci_device_id gdthtable[] = {
+	{ PCI_VDEVICE(VORTEX, PCI_ANY_ID) },
+	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC) },
+	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC_XSCALE) },
+	{ }	/* terminate list */
 };
-MODULE_DEVICE_TABLE(pci,gdthtable);
+MODULE_DEVICE_TABLE(pci, gdthtable);
 
-static void __init gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
-                                   ushort vendor, ushort device)
+static struct pci_driver gdth_pci_driver = {
+	.name		= "gdth",
+	.id_table	= gdthtable,
+	.probe		= gdth_pci_init_one,
+	.remove		= gdth_pci_remove_one,
+};
+
+static void gdth_pci_remove_one(struct pci_dev *pdev)
 {
-    ulong base0, base1, base2;
-    struct pci_dev *pdev;
+	gdth_ha_str *ha = pci_get_drvdata(pdev);
+
+	pci_set_drvdata(pdev, NULL);
+
+	list_del(&ha->list);
+	gdth_remove_one(ha);
+
+	pci_disable_device(pdev);
+}
+
+static int gdth_pci_init_one(struct pci_dev *pdev,
+				       const struct pci_device_id *ent)
+{
+	ushort vendor = pdev->vendor;
+	ushort device = pdev->device;
+	ulong base0, base1, base2;
+	int rc;
+	gdth_pci_str gdth_pcistr;
+	gdth_ha_str *ha = NULL;
     
-    TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
-          *cnt, vendor, device));
+	TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
+	       gdth_ctr_count, vendor, device));
 
-    pdev = NULL;
-    while ((pdev = pci_get_device(vendor, device, pdev))
-           != NULL) {
-        if (pci_enable_device(pdev))
-            continue;
-        if (*cnt >= MAXHA) {
-            pci_dev_put(pdev);
-            return;
-        }
+	memset(&gdth_pcistr, 0, sizeof(gdth_pcistr));
+
+	if (vendor == PCI_VENDOR_ID_VORTEX && !gdth_search_vortex(device))
+		return -ENODEV;
+
+	rc = pci_enable_device(pdev);
+	if (rc)
+		return rc;
+
+	if (gdth_ctr_count >= MAXHA)
+		return -EBUSY;
 
         /* GDT PCI controller found, resources are already in pdev */
-        pcistr[*cnt].pdev = pdev;
-        pcistr[*cnt].irq = pdev->irq;
+	gdth_pcistr.pdev = pdev;
         base0 = pci_resource_flags(pdev, 0);
         base1 = pci_resource_flags(pdev, 1);
         base2 = pci_resource_flags(pdev, 2);
         if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B ||   /* GDT6000/B */
             device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) {  /* MPR */
             if (!(base0 & IORESOURCE_MEM)) 
-                continue;
-            pcistr[*cnt].dpmem = pci_resource_start(pdev, 0);
+		return -ENODEV;
+	    gdth_pcistr.dpmem = pci_resource_start(pdev, 0);
         } else {                                  /* GDT6110, GDT6120, .. */
             if (!(base0 & IORESOURCE_MEM) ||
                 !(base2 & IORESOURCE_MEM) ||
                 !(base1 & IORESOURCE_IO)) 
-                continue;
-            pcistr[*cnt].dpmem = pci_resource_start(pdev, 2);
-            pcistr[*cnt].io_mm = pci_resource_start(pdev, 0);
-            pcistr[*cnt].io    = pci_resource_start(pdev, 1);
+		return -ENODEV;
+	    gdth_pcistr.dpmem = pci_resource_start(pdev, 2);
+	    gdth_pcistr.io    = pci_resource_start(pdev, 1);
         }
         TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
-                pcistr[*cnt].pdev->bus->number,
-		PCI_SLOT(pcistr[*cnt].pdev->devfn),
-                pcistr[*cnt].irq, pcistr[*cnt].dpmem));
-        (*cnt)++;
-    }       
-}   
+		gdth_pcistr.pdev->bus->number,
+		PCI_SLOT(gdth_pcistr.pdev->devfn),
+		gdth_pcistr.irq,
+		gdth_pcistr.dpmem));
 
-static void __init gdth_sort_pci(gdth_pci_str *pcistr, int cnt)
-{    
-    gdth_pci_str temp;
-    int i, changed;
-    
-    TRACE(("gdth_sort_pci() cnt %d\n",cnt));
-    if (cnt == 0)
-        return;
+	rc = gdth_pci_probe_one(&gdth_pcistr, &ha);
+	if (rc)
+		return rc;
 
-    do {
-        changed = FALSE;
-        for (i = 0; i < cnt-1; ++i) {
-            if (!reverse_scan) {
-                if ((pcistr[i].pdev->bus->number > pcistr[i+1].pdev->bus->number) ||
-                    (pcistr[i].pdev->bus->number == pcistr[i+1].pdev->bus->number &&
-                     PCI_SLOT(pcistr[i].pdev->devfn) >
-                     PCI_SLOT(pcistr[i+1].pdev->devfn))) {
-                    temp = pcistr[i];
-                    pcistr[i] = pcistr[i+1];
-                    pcistr[i+1] = temp;
-                    changed = TRUE;
-                }
-            } else {
-                if ((pcistr[i].pdev->bus->number < pcistr[i+1].pdev->bus->number) ||
-                    (pcistr[i].pdev->bus->number == pcistr[i+1].pdev->bus->number &&
-                     PCI_SLOT(pcistr[i].pdev->devfn) <
-                     PCI_SLOT(pcistr[i+1].pdev->devfn))) {
-                    temp = pcistr[i];
-                    pcistr[i] = pcistr[i+1];
-                    pcistr[i+1] = temp;
-                    changed = TRUE;
-                }
-            }
-        }
-    } while (changed);
+	return 0;
 }
 #endif /* CONFIG_PCI */
 
@@ -913,7 +899,8 @@ static int __init gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha)
 #endif /* CONFIG_ISA */
 
 #ifdef CONFIG_PCI
-static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
+static int gdth_init_pci(struct pci_dev *pdev, gdth_pci_str *pcistr,
+				   gdth_ha_str *ha)
 {
     register gdt6_dpram_str __iomem *dp6_ptr;
     register gdt6c_dpram_str __iomem *dp6c_ptr;
@@ -925,14 +912,14 @@ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
 
     TRACE(("gdth_init_pci()\n"));
 
-    if (pcistr->pdev->vendor == PCI_VENDOR_ID_INTEL)
+    if (pdev->vendor == PCI_VENDOR_ID_INTEL)
         ha->oem_id = OEM_ID_INTEL;
     else
         ha->oem_id = OEM_ID_ICP;
-    ha->brd_phys = (pcistr->pdev->bus->number << 8) | (pcistr->pdev->devfn & 0xf8);
-    ha->stype = (ulong32)pcistr->pdev->device;
-    ha->irq = pcistr->irq;
-    ha->pdev = pcistr->pdev;
+    ha->brd_phys = (pdev->bus->number << 8) | (pdev->devfn & 0xf8);
+    ha->stype = (ulong32)pdev->device;
+    ha->irq = pdev->irq;
+    ha->pdev = pdev;
     
     if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6000B) {  /* GDT6000/B */
         TRACE2(("init_pci() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
@@ -960,8 +947,7 @@ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
                     continue;
                 }
                 iounmap(ha->brd);
-                pci_write_config_dword(pcistr->pdev, 
-                                       PCI_BASE_ADDRESS_0, i);
+		pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i);
                 ha->brd = ioremap(i, sizeof(gdt6_dpram_str)); 
                 if (ha->brd == NULL) {
                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
@@ -1070,8 +1056,7 @@ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
                     continue;
                 }
                 iounmap(ha->brd);
-                pci_write_config_dword(pcistr->pdev, 
-                                       PCI_BASE_ADDRESS_2, i);
+		pci_write_config_dword(pdev, PCI_BASE_ADDRESS_2, i);
                 ha->brd = ioremap(i, sizeof(gdt6c_dpram_str)); 
                 if (ha->brd == NULL) {
                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
@@ -1163,16 +1148,16 @@ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
         }
 
         /* manipulate config. space to enable DPMEM, start RP controller */
-        pci_read_config_word(pcistr->pdev, PCI_COMMAND, &command);
+	pci_read_config_word(pdev, PCI_COMMAND, &command);
         command |= 6;
-        pci_write_config_word(pcistr->pdev, PCI_COMMAND, command);
-        if (pci_resource_start(pcistr->pdev, 8) == 1UL)
-            pci_resource_start(pcistr->pdev, 8) = 0UL;
+	pci_write_config_word(pdev, PCI_COMMAND, command);
+	if (pci_resource_start(pdev, 8) == 1UL)
+	    pci_resource_start(pdev, 8) = 0UL;
         i = 0xFEFF0001UL;
-        pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS, i);
+	pci_write_config_dword(pdev, PCI_ROM_ADDRESS, i);
         gdth_delay(1);
-        pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS,
-                               pci_resource_start(pcistr->pdev, 8));
+	pci_write_config_dword(pdev, PCI_ROM_ADDRESS,
+			       pci_resource_start(pdev, 8));
         
         dp6m_ptr = ha->brd;
 
@@ -1199,8 +1184,7 @@ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
                     continue;
                 }
                 iounmap(ha->brd);
-                pci_write_config_dword(pcistr->pdev, 
-                                       PCI_BASE_ADDRESS_0, i);
+		pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i);
                 ha->brd = ioremap(i, sizeof(gdt6m_dpram_str)); 
                 if (ha->brd == NULL) {
                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
@@ -4998,12 +4982,16 @@ static int __init gdth_eisa_probe_one(ushort eisa_slot)
 #endif /* CONFIG_EISA */
 
 #ifdef CONFIG_PCI
-static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
+static int gdth_pci_probe_one(gdth_pci_str *pcistr,
+			     gdth_ha_str **ha_out)
 {
 	struct Scsi_Host *shp;
 	gdth_ha_str *ha;
 	dma_addr_t scratch_dma_handle = 0;
 	int error, i;
+	struct pci_dev *pdev = pcistr->pdev;
+
+	*ha_out = NULL;
 
 	shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
 	if (!shp)
@@ -5011,13 +4999,13 @@ static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
 	ha = shost_priv(shp);
 
 	error = -ENODEV;
-	if (!gdth_init_pci(&pcistr[ctr],ha))
+	if (!gdth_init_pci(pdev, pcistr, ha))
 		goto out_host_put;
 
 	/* controller found and initialized */
 	printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
-		pcistr[ctr].pdev->bus->number,
-		PCI_SLOT(pcistr[ctr].pdev->devfn),
+		pdev->bus->number,
+		PCI_SLOT(pdev->devfn),
 		ha->irq);
 
 	error = request_irq(ha->irq, gdth_interrupt,
@@ -5062,7 +5050,7 @@ static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
 
 	ha->scratch_busy = FALSE;
 	ha->req_first = NULL;
-	ha->tid_cnt = pcistr[ctr].pdev->device >= 0x200 ? MAXID : MAX_HDRIVES;
+	ha->tid_cnt = pdev->device >= 0x200 ? MAXID : MAX_HDRIVES;
 	if (max_ids > 0 && max_ids < ha->tid_cnt)
 		ha->tid_cnt = max_ids;
 	for (i = 0; i < GDTH_MAXCMDS; ++i)
@@ -5082,16 +5070,16 @@ static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
 	/* 64-bit DMA only supported from FW >= x.43 */
 	if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT) ||
 	    !ha->dma64_support) {
-		if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
+		if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
 			printk(KERN_WARNING "GDT-PCI %d: "
 				"Unable to set 32-bit DMA\n", ha->hanum);
 				goto out_free_coal_stat;
 		}
 	} else {
 		shp->max_cmd_len = 16;
-		if (!pci_set_dma_mask(pcistr[ctr].pdev, DMA_64BIT_MASK)) {
+		if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
 			printk("GDT-PCI %d: 64-bit DMA enabled\n", ha->hanum);
-		} else if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
+		} else if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
 			printk(KERN_WARNING "GDT-PCI %d: "
 				"Unable to set 64/32-bit DMA\n", ha->hanum);
 			goto out_free_coal_stat;
@@ -5105,13 +5093,17 @@ static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
 	spin_lock_init(&ha->smp_lock);
 	gdth_enable_int(ha);
 
-	error = scsi_add_host(shp, &pcistr[ctr].pdev->dev);
+	error = scsi_add_host(shp, &pdev->dev);
 	if (error)
 		goto out_free_coal_stat;
 	list_add_tail(&ha->list, &gdth_instances);
 
+	pci_set_drvdata(ha->pdev, ha);
+
 	scsi_scan_host(shp);
 
+	*ha_out = ha;
+
 	return 0;
 
  out_free_coal_stat:
@@ -5210,16 +5202,8 @@ static int __init gdth_init(void)
 
 #ifdef CONFIG_PCI
 	/* scanning for PCI controllers */
-	{
-		gdth_pci_str pcistr[MAXHA];
-		int cnt,ctr;
-
-		cnt = gdth_search_pci(pcistr);
-		printk("GDT-HA: Found %d PCI Storage RAID Controllers\n", cnt);
-		gdth_sort_pci(pcistr,cnt);
-		for (ctr = 0; ctr < cnt; ++ctr)
-			gdth_pci_probe_one(pcistr, ctr);
-	}
+	if (pci_register_driver(&gdth_pci_driver) == 0)
+		gdth_pci_registered = true;
 #endif /* CONFIG_PCI */
 
 	TRACE2(("gdth_detect() %d controller detected\n", gdth_ctr_count));
@@ -5246,6 +5230,11 @@ static void __exit gdth_exit(void)
 {
 	gdth_ha_str *ha;
 
+#ifdef CONFIG_PCI
+	if (gdth_pci_registered)
+		pci_unregister_driver(&gdth_pci_driver);
+#endif
+
 	list_for_each_entry(ha, &gdth_instances, list)
 		gdth_remove_one(ha);
 
diff --git a/drivers/scsi/gdth.h b/drivers/scsi/gdth.h
index 1434c6b0297c..8193f4b38d66 100644
--- a/drivers/scsi/gdth.h
+++ b/drivers/scsi/gdth.h
@@ -839,8 +839,6 @@ typedef struct {
     struct pci_dev      *pdev;
     ulong               dpmem;                  /* DPRAM address */
     ulong               io;                     /* IO address */
-    ulong               io_mm;                  /* IO address mem. mapped */
-    unchar              irq;                    /* IRQ */
 } gdth_pci_str;
 
 
diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index 7ed568f180ae..e5467a4c225b 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -3510,15 +3510,16 @@ ips_scmd_buf_write(struct scsi_cmnd *scmd, void *data, unsigned int count)
         struct scatterlist *sg = scsi_sglist(scmd);
 
         for (i = 0, xfer_cnt = 0;
-             (i < scsi_sg_count(scmd)) && (xfer_cnt < count); i++) {
-                min_cnt = min(count - xfer_cnt, sg[i].length);
+	(i < scsi_sg_count(scmd)) && (xfer_cnt < count);
+             i++, sg = sg_next(sg)) {
+                min_cnt = min(count - xfer_cnt, sg->length);
 
                 /* kmap_atomic() ensures addressability of the data buffer.*/
                 /* local_irq_save() protects the KM_IRQ0 address slot.     */
                 local_irq_save(flags);
-                buffer = kmap_atomic(sg_page(&sg[i]), KM_IRQ0) + sg[i].offset;
+		buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
                 memcpy(buffer, &cdata[xfer_cnt], min_cnt);
-                kunmap_atomic(buffer - sg[i].offset, KM_IRQ0);
+		kunmap_atomic(buffer - sg->offset, KM_IRQ0);
                 local_irq_restore(flags);
 
                 xfer_cnt += min_cnt;
@@ -3543,15 +3544,16 @@ ips_scmd_buf_read(struct scsi_cmnd *scmd, void *data, unsigned int count)
         struct scatterlist *sg = scsi_sglist(scmd);
 
         for (i = 0, xfer_cnt = 0;
-             (i < scsi_sg_count(scmd)) && (xfer_cnt < count); i++) {
-                min_cnt = min(count - xfer_cnt, sg[i].length);
+             (i < scsi_sg_count(scmd)) && (xfer_cnt < count);
+             i++, sg = sg_next(sg)) {
+		min_cnt = min(count - xfer_cnt, sg->length);
 
                 /* kmap_atomic() ensures addressability of the data buffer.*/
                 /* local_irq_save() protects the KM_IRQ0 address slot.     */
                 local_irq_save(flags);
-                buffer = kmap_atomic(sg_page(&sg[i]), KM_IRQ0) + sg[i].offset;
+		buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
                 memcpy(&cdata[xfer_cnt], buffer, min_cnt);
-                kunmap_atomic(buffer - sg[i].offset, KM_IRQ0);
+		kunmap_atomic(buffer - sg->offset, KM_IRQ0);
                 local_irq_restore(flags);
 
                 xfer_cnt += min_cnt;
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index b656e2919234..a4d980c3b399 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -24,6 +24,8 @@
  */
 
 #include <linux/kthread.h>
+#include <linux/firmware.h>
+#include <linux/ctype.h>
 
 #include "sas_internal.h"
 
@@ -1055,6 +1057,45 @@ void sas_target_destroy(struct scsi_target *starget)
 	return;
 }
 
+static void sas_parse_addr(u8 *sas_addr, const char *p)
+{
+	int i;
+	for (i = 0; i < SAS_ADDR_SIZE; i++) {
+		u8 h, l;
+		if (!*p)
+			break;
+		h = isdigit(*p) ? *p-'0' : toupper(*p)-'A'+10;
+		p++;
+		l = isdigit(*p) ? *p-'0' : toupper(*p)-'A'+10;
+		p++;
+		sas_addr[i] = (h<<4) | l;
+	}
+}
+
+#define SAS_STRING_ADDR_SIZE	16
+
+int sas_request_addr(struct Scsi_Host *shost, u8 *addr)
+{
+	int res;
+	const struct firmware *fw;
+
+	res = request_firmware(&fw, "sas_addr", &shost->shost_gendev);
+	if (res)
+		return res;
+
+	if (fw->size < SAS_STRING_ADDR_SIZE) {
+		res = -ENODEV;
+		goto out;
+	}
+
+	sas_parse_addr(addr, fw->data);
+
+out:
+	release_firmware(fw);
+	return res;
+}
+EXPORT_SYMBOL_GPL(sas_request_addr);
+
 EXPORT_SYMBOL_GPL(sas_queuecommand);
 EXPORT_SYMBOL_GPL(sas_target_alloc);
 EXPORT_SYMBOL_GPL(sas_slave_configure);
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 3ffd6b582a97..5f183de18dc9 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -676,4 +676,6 @@ extern int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
 extern void sas_ssp_task_response(struct device *dev, struct sas_task *task,
 				  struct ssp_response_iu *iu);
 
+int sas_request_addr(struct Scsi_Host *shost, u8 *addr);
+
 #endif /* _SASLIB_H_ */