[SCSI] hpsa: save pdev pointer in per hba structure early to avoid passing it around so much.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 38 insertions, 37 deletions

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index c016426b31b2..d6f897016e24 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3209,8 +3209,7 @@ static int find_PCI_BAR_index(struct pci_dev *pdev, unsigned long pci_bar_addr)
  * controllers that are capable. If not, we use IO-APIC mode.
  */
 
-static void __devinit hpsa_interrupt_mode(struct ctlr_info *h,
-                                           struct pci_dev *pdev, u32 board_id)
+static void __devinit hpsa_interrupt_mode(struct ctlr_info *h, u32 board_id)
 {
 #ifdef CONFIG_PCI_MSI
         int err;
@@ -3223,9 +3222,9 @@ static void __devinit hpsa_interrupt_mode(struct ctlr_info *h,
             (board_id == 0x40800E11) ||
             (board_id == 0x40820E11) || (board_id == 0x40830E11))
                 goto default_int_mode;
-        if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) {
-                dev_info(&pdev->dev, "MSIX\n");
-                err = pci_enable_msix(pdev, hpsa_msix_entries, 4);
+        if (pci_find_capability(h->pdev, PCI_CAP_ID_MSIX)) {
+                dev_info(&h->pdev->dev, "MSIX\n");
+                err = pci_enable_msix(h->pdev, hpsa_msix_entries, 4);
                 if (!err) {
                         h->intr[0] = hpsa_msix_entries[0].vector;
                         h->intr[1] = hpsa_msix_entries[1].vector;
@@ -3235,29 +3234,29 @@ static void __devinit hpsa_interrupt_mode(struct ctlr_info *h,
                         return;
                 }
                 if (err > 0) {
-                        dev_warn(&pdev->dev, "only %d MSI-X vectors "
+                        dev_warn(&h->pdev->dev, "only %d MSI-X vectors "
                                "available\n", err);
                         goto default_int_mode;
                 } else {
-                        dev_warn(&pdev->dev, "MSI-X init failed %d\n",
+                        dev_warn(&h->pdev->dev, "MSI-X init failed %d\n",
                                err);
                         goto default_int_mode;
                 }
         }
-        if (pci_find_capability(pdev, PCI_CAP_ID_MSI)) {
-                dev_info(&pdev->dev, "MSI\n");
-                if (!pci_enable_msi(pdev))
+        if (pci_find_capability(h->pdev, PCI_CAP_ID_MSI)) {
+                dev_info(&h->pdev->dev, "MSI\n");
+                if (!pci_enable_msi(h->pdev))
                         h->msi_vector = 1;
                 else
-                        dev_warn(&pdev->dev, "MSI init failed\n");
+                        dev_warn(&h->pdev->dev, "MSI init failed\n");
         }
 default_int_mode:
 #endif                          /* CONFIG_PCI_MSI */
         /* if we get here we're going to use the default interrupt mode */
-        h->intr[PERF_MODE_INT] = pdev->irq;
+        h->intr[PERF_MODE_INT] = h->pdev->irq;
 }
 
-static int __devinit hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
+static int __devinit hpsa_pci_init(struct ctlr_info *h)
 {
         ushort subsystem_vendor_id, subsystem_device_id, command;
         u32 board_id, scratchpad = 0;
@@ -3267,8 +3266,8 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
         u32 trans_offset;
         int i, prod_index, err;
 
-        subsystem_vendor_id = pdev->subsystem_vendor;
-        subsystem_device_id = pdev->subsystem_device;
+        subsystem_vendor_id = h->pdev->subsystem_vendor;
+        subsystem_device_id = h->pdev->subsystem_device;
         board_id = (((u32) (subsystem_device_id << 16) & 0xffff0000) |
                     subsystem_vendor_id);
 
@@ -3282,7 +3281,7 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
                 prod_index--;
                 if (subsystem_vendor_id != PCI_VENDOR_ID_HP ||
                                 !hpsa_allow_any) {
-                        dev_warn(&pdev->dev, "unrecognized board ID:"
+                        dev_warn(&h->pdev->dev, "unrecognized board ID:"
                                 " 0x%08lx, ignoring.\n",
                                 (unsigned long) board_id);
                         return -ENODEV;
@@ -3291,41 +3290,42 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
         /* check to see if controller has been disabled
          * BEFORE trying to enable it
          */
-        (void)pci_read_config_word(pdev, PCI_COMMAND, &command);
+        (void)pci_read_config_word(h->pdev, PCI_COMMAND, &command);
         if (!(command & 0x02)) {
-                dev_warn(&pdev->dev, "controller appears to be disabled\n");
+                dev_warn(&h->pdev->dev, "controller appears to be disabled\n");
                 return -ENODEV;
         }
 
-        err = pci_enable_device(pdev);
+        err = pci_enable_device(h->pdev);
         if (err) {
-                dev_warn(&pdev->dev, "unable to enable PCI device\n");
+                dev_warn(&h->pdev->dev, "unable to enable PCI device\n");
                 return err;
         }
 
-        err = pci_request_regions(pdev, "hpsa");
+        err = pci_request_regions(h->pdev, "hpsa");
         if (err) {
-                dev_err(&pdev->dev, "cannot obtain PCI resources, aborting\n");
+                dev_err(&h->pdev->dev,
+                        "cannot obtain PCI resources, aborting\n");
                 return err;
         }
 
         /* If the kernel supports MSI/MSI-X we will try to enable that,
          * else we use the IO-APIC interrupt assigned to us by system ROM.
          */
-        hpsa_interrupt_mode(h, pdev, board_id);
+        hpsa_interrupt_mode(h, board_id);
 
         /* find the memory BAR */
         for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
-                if (pci_resource_flags(pdev, i) & IORESOURCE_MEM)
+                if (pci_resource_flags(h->pdev, i) & IORESOURCE_MEM)
                         break;
         }
         if (i == DEVICE_COUNT_RESOURCE) {
-                dev_warn(&pdev->dev, "no memory BAR found\n");
+                dev_warn(&h->pdev->dev, "no memory BAR found\n");
                 err = -ENODEV;
                 goto err_out_free_res;
         }
 
-        h->paddr = pci_resource_start(pdev, i); /* addressing mode bits
+        h->paddr = pci_resource_start(h->pdev, i); /* addressing mode bits
                                                  * already removed
                                                  */
 
@@ -3339,7 +3339,7 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
                 msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS);
         }
         if (scratchpad != HPSA_FIRMWARE_READY) {
-                dev_warn(&pdev->dev, "board not ready, timed out.\n");
+                dev_warn(&h->pdev->dev, "board not ready, timed out.\n");
                 err = -ENODEV;
                 goto err_out_free_res;
         }
@@ -3347,20 +3347,20 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
         /* get the address index number */
         cfg_base_addr = readl(h->vaddr + SA5_CTCFG_OFFSET);
         cfg_base_addr &= (u32) 0x0000ffff;
-        cfg_base_addr_index = find_PCI_BAR_index(pdev, cfg_base_addr);
+        cfg_base_addr_index = find_PCI_BAR_index(h->pdev, cfg_base_addr);
         if (cfg_base_addr_index == -1) {
-                dev_warn(&pdev->dev, "cannot find cfg_base_addr_index\n");
+                dev_warn(&h->pdev->dev, "cannot find cfg_base_addr_index\n");
                 err = -ENODEV;
                 goto err_out_free_res;
         }
 
         cfg_offset = readl(h->vaddr + SA5_CTMEM_OFFSET);
-        h->cfgtable = remap_pci_mem(pci_resource_start(pdev,
+        h->cfgtable = remap_pci_mem(pci_resource_start(h->pdev,
                                cfg_base_addr_index) + cfg_offset,
                                 sizeof(h->cfgtable));
         /* Find performant mode table. */
         trans_offset = readl(&(h->cfgtable->TransMethodOffset));
-        h->transtable = remap_pci_mem(pci_resource_start(pdev,
+        h->transtable = remap_pci_mem(pci_resource_start(h->pdev,
                                 cfg_base_addr_index)+cfg_offset+trans_offset,
                                 sizeof(*h->transtable));
 
@@ -3392,7 +3392,7 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
             (readb(&h->cfgtable->Signature[1]) != 'I') ||
             (readb(&h->cfgtable->Signature[2]) != 'S') ||
             (readb(&h->cfgtable->Signature[3]) != 'S')) {
-                dev_warn(&pdev->dev, "not a valid CISS config table\n");
+                dev_warn(&h->pdev->dev, "not a valid CISS config table\n");
                 err = -ENODEV;
                 goto err_out_free_res;
         }
@@ -3434,11 +3434,12 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
         }
 
 #ifdef HPSA_DEBUG
-        print_cfg_table(&pdev->dev, h->cfgtable);
+        print_cfg_table(&h->pdev->dev, h->cfgtable);
 #endif                          /* HPSA_DEBUG */
 
         if (!(readl(&(h->cfgtable->TransportActive)) & CFGTBL_Trans_Simple)) {
-                dev_warn(&pdev->dev, "unable to get board into simple mode\n");
+                dev_warn(&h->pdev->dev,
+                        "unable to get board into simple mode\n");
                 err = -ENODEV;
                 goto err_out_free_res;
         }
@@ -3449,7 +3450,7 @@ err_out_free_res:
          * Deliberately omit pci_disable_device(): it does something nasty to
          * Smart Array controllers that pci_enable_device does not undo
          */
-        pci_release_regions(pdev);
+        pci_release_regions(h->pdev);
         return err;
 }
 
@@ -3507,17 +3508,17 @@ static int __devinit hpsa_init_one(struct pci_dev *pdev,
         if (!h)
                 return -ENOMEM;
 
+        h->pdev = pdev;
         h->busy_initializing = 1;
         INIT_HLIST_HEAD(&h->cmpQ);
         INIT_HLIST_HEAD(&h->reqQ);
-        rc = hpsa_pci_init(h, pdev);
+        rc = hpsa_pci_init(h);
         if (rc != 0)
                 goto clean1;
 
         sprintf(h->devname, "hpsa%d", number_of_controllers);
         h->ctlr = number_of_controllers;
         number_of_controllers++;
-        h->pdev = pdev;
 
         /* configure PCI DMA stuff */
         rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));