libata: stop overloading port_info->private_data

port_info->private_data is currently used for two purposes - to record
private data about the port_info or to specify host->private_data to
use when allocating ata_host.

This overloading is confusing and counter-intuitive in that
port_info->private_data becomes host->private_data instead of
port->private_data.  In addition, port_info and host don't correspond
to each other 1-to-1.  Currently, the first non-NULL
port_info->private_data is used.

This patch makes port_info->private_data just be what it is -
private_data for the port_info where LLD can jot down extra info.
libata no longer sets host->private_data to the first non-NULL
port_info->private_data, @host_priv argument is added to
ata_pci_init_one() instead.  LLDs which use ata_pci_init_one() can use
this argument to pass in pointer to host private data.  LLDs which
don't should use init-register model anyway and can initialize
host->private_data directly.

Adding @host_priv instead of using init-register model for LLDs which
use ata_pci_init_one() is suggested by Alan Cox.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>

38 files changed, 78 insertions, 144 deletions

diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c
index a912ee01a47c..b23e2a1099c5 100644
--- a/drivers/ata/ata_generic.c
+++ b/drivers/ata/ata_generic.c
@@ -152,7 +152,7 @@ static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id
         if (dev->vendor == PCI_VENDOR_ID_AL)
                 ata_pci_clear_simplex(dev);
 
-        return ata_pci_init_one(dev, ppi, &generic_sht);
+        return ata_pci_init_one(dev, ppi, &generic_sht, NULL);
 }
 
 static struct pci_device_id ata_generic[] = {
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index abbe3229480c..aa6bcd79d60a 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6995,8 +6995,6 @@ struct ata_host *ata_host_alloc_pinfo(struct device *dev,
 
                 if (!host->ops && (pi->port_ops != &ata_dummy_port_ops))
                         host->ops = pi->port_ops;
-                if (!host->private_data && pi->private_data)
-                        host->private_data = pi->private_data;
         }
 
         return host;
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index a9d5898cbbc4..6223ec042c80 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -827,6 +827,7 @@ int ata_pci_activate_sff_host(struct ata_host *host,
  *      @pdev: Controller to be initialized
  *      @ppi: array of port_info, must be enough for two ports
  *      @sht: scsi_host_template to use when registering the host
+ *      @host_priv: host private_data
  *
  *      This is a helper function which can be called from a driver's
  *      xxx_init_one() probe function if the hardware uses traditional
@@ -848,7 +849,7 @@ int ata_pci_activate_sff_host(struct ata_host *host,
  */
 int ata_pci_init_one(struct pci_dev *pdev,
                      const struct ata_port_info * const * ppi,
-                     struct scsi_host_template *sht)
+                     struct scsi_host_template *sht, void *host_priv)
 {
         struct device *dev = &pdev->dev;
         const struct ata_port_info *pi = NULL;
@@ -882,6 +883,7 @@ int ata_pci_init_one(struct pci_dev *pdev,
         rc = ata_pci_prepare_sff_host(pdev, ppi, &host);
         if (rc)
                 goto out;
+        host->private_data = host_priv;
 
         pci_set_master(pdev);
         rc = ata_pci_activate_sff_host(host, ata_interrupt, sht);
diff --git a/drivers/ata/pata_acpi.c b/drivers/ata/pata_acpi.c
index 3edde51750da..d337f3209caf 100644
--- a/drivers/ata/pata_acpi.c
+++ b/drivers/ata/pata_acpi.c
@@ -68,20 +68,6 @@ static int pacpi_cable_detect(struct ata_port *ap)
 }
 
 /**
- *      pacpi_error_handler - Setup and error handler
- *      @ap: Port to handle
- *
- *      LOCKING:
- *      None (inherited from caller).
- */
-
-static void pacpi_error_handler(struct ata_port *ap)
-{
-        ata_bmdma_drive_eh(ap, pacpi_pre_reset, ata_std_softreset, NULL,
-                           ata_std_postreset);
-}
-
-/**
  *      pacpi_discover_modes    -       filter non ACPI modes
  *      @adev: ATA device
  *      @mask: proposed modes
@@ -242,7 +228,7 @@ static struct ata_port_operations pacpi_ops = {
         .mode_filter            = pacpi_mode_filter,
         .set_piomode            = pacpi_set_piomode,
         .set_dmamode            = pacpi_set_dmamode,
-        .error_handler          = pacpi_error_handler,
+        .prereset               = pacpi_pre_reset,
         .port_start             = pacpi_port_start,
 };
 
@@ -273,7 +259,7 @@ static int pacpi_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
                 .port_ops       = &pacpi_ops,
         };
         const struct ata_port_info *ppi[] = { &info, NULL };
-        return ata_pci_init_one(pdev, ppi, &pacpi_sht);
+        return ata_pci_init_one(pdev, ppi, &pacpi_sht, NULL);
 }
 
 static const struct pci_device_id pacpi_pci_tbl[] = {
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index f2924996f6e3..43c558f20f92 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -552,7 +552,7 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
                         ppi[0] = &info_20_udma;
                 pci_dev_put(isa_bridge);
         }
-        return ata_pci_init_one(pdev, ppi, &ali_sht);
+        return ata_pci_init_one(pdev, ppi, &ali_sht, NULL);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index 644702cac6ee..09c8286b6890 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -144,12 +144,6 @@ static int amd_pre_reset(struct ata_link *link, unsigned long deadline)
         return ata_std_prereset(link, deadline);
 }
 
-static void amd_error_handler(struct ata_port *ap)
-{
-        ata_bmdma_drive_eh(ap, amd_pre_reset, ata_std_softreset, NULL,
-                           ata_std_postreset);
-}
-
 static int amd_cable_detect(struct ata_port *ap)
 {
         static const u32 bitmask[2] = {0x03, 0x0C};
@@ -300,13 +294,6 @@ static int nv_pre_reset(struct ata_link *link, unsigned long deadline)
         return ata_std_prereset(link, deadline);
 }
 
-static void nv_error_handler(struct ata_port *ap)
-{
-        ata_bmdma_drive_eh(ap, nv_pre_reset,
-                               ata_std_softreset, NULL,
-                               ata_std_postreset);
-}
-
 /**
  *      nv100_set_piomode       -       set initial PIO mode data
  *      @ap: ATA interface
@@ -358,7 +345,7 @@ static struct scsi_host_template amd_sht = {
 
 static const struct ata_port_operations amd_base_port_ops = {
         .inherits       = &ata_bmdma_port_ops,
-        .error_handler  = amd_error_handler,
+        .prereset       = amd_pre_reset,
 };
 
 static struct ata_port_operations amd33_port_ops = {
@@ -393,7 +380,7 @@ static const struct ata_port_operations nv_base_port_ops = {
         .inherits       = &ata_bmdma_port_ops,
         .cable_detect   = ata_cable_ignore,
         .mode_filter    = nv_mode_filter,
-        .error_handler  = nv_error_handler,
+        .prereset       = nv_pre_reset,
         .host_stop      = nv_host_stop,
 };
 
@@ -483,10 +470,10 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
                         .port_ops = &amd100_port_ops
                 }
         };
-        struct ata_port_info pi;
-        const struct ata_port_info *ppi[] = { &pi, NULL };
+        const struct ata_port_info *ppi[] = { NULL, NULL };
         static int printed_version;
         int type = id->driver_data;
+        void *hpriv = NULL;
         u8 fifo;
         int rc;
 
@@ -511,7 +498,7 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
         /*
          * Okay, type is determined now.  Apply type-specific workarounds.
          */
-        pi = info[type];
+        ppi[0] = &info[type];
 
         if (type < 3)
                 ata_pci_clear_simplex(pdev);
@@ -530,11 +517,11 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
                 u32 udma;
 
                 pci_read_config_dword(pdev, 0x60, &udma);
-                pi.private_data = (void *)(unsigned long)udma;
+                hpriv = (void *)(unsigned long)udma;
         }
 
         /* And fire it up */
-        return ata_pci_init_one(pdev, ppi, &amd_sht);
+        return ata_pci_init_one(pdev, ppi, &amd_sht, hpriv);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c
index 698a53c96111..ebd15cadf15f 100644
--- a/drivers/ata/pata_artop.c
+++ b/drivers/ata/pata_artop.c
@@ -430,7 +430,7 @@ static int artop_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
 
         BUG_ON(ppi[0] == NULL);
 
-        return ata_pci_init_one(pdev, ppi, &artop_sht);
+        return ata_pci_init_one(pdev, ppi, &artop_sht, NULL);
 }
 
 static const struct pci_device_id artop_pci_tbl[] = {
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index 6fe433ba62bd..0bea7e75d2d6 100644
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -248,7 +248,7 @@ static int atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                 .port_ops = &atiixp_port_ops
         };
         const struct ata_port_info *ppi[] = { &info, NULL };
-        return ata_pci_init_one(dev, ppi, &atiixp_sht);
+        return ata_pci_init_one(dev, ppi, &atiixp_sht, NULL);
 }
 
 static const struct pci_device_id atiixp[] = {
diff --git a/drivers/ata/pata_cmd640.c b/drivers/ata/pata_cmd640.c
index efd2bb5747b4..27219b00edf4 100644
--- a/drivers/ata/pata_cmd640.c
+++ b/drivers/ata/pata_cmd640.c
@@ -224,7 +224,7 @@ static int cmd640_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 
         cmd640_hardware_init(pdev);
 
-        return ata_pci_init_one(pdev, ppi, &cmd640_sht);
+        return ata_pci_init_one(pdev, ppi, &cmd640_sht, NULL);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index bfd72ef9cd31..f0e566623614 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -373,7 +373,7 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
         pci_write_config_byte(pdev, UDIDETCR0, 0xF0);
 #endif
 
-        return ata_pci_init_one(pdev, ppi, &cmd64x_sht);
+        return ata_pci_init_one(pdev, ppi, &cmd64x_sht, NULL);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c
index c632ce499d33..ac3ad55d7c3c 100644
--- a/drivers/ata/pata_cs5530.c
+++ b/drivers/ata/pata_cs5530.c
@@ -325,7 +325,7 @@ static int cs5530_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
                 ppi[1] = &info_palmax_secondary;
 
         /* Now kick off ATA set up */
-        return ata_pci_init_one(pdev, ppi, &cs5530_sht);
+        return ata_pci_init_one(pdev, ppi, &cs5530_sht, NULL);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/ata/pata_cs5535.c b/drivers/ata/pata_cs5535.c
index d78cf95cbe45..5c0762ebf58c 100644
--- a/drivers/ata/pata_cs5535.c
+++ b/drivers/ata/pata_cs5535.c
@@ -199,7 +199,7 @@ static int cs5535_init_one(struct pci_dev *dev, const struct pci_device_id *id)
         rdmsr(ATAC_CH0D1_PIO, timings, dummy);
         if (CS5535_BAD_PIO(timings))
                 wrmsr(ATAC_CH0D1_PIO, 0xF7F4F7F4UL, 0);
-        return ata_pci_init_one(dev, ppi, &cs5535_sht);
+        return ata_pci_init_one(dev, ppi, &cs5535_sht, NULL);
 }
 
 static const struct pci_device_id cs5535[] = {
diff --git a/drivers/ata/pata_cs5536.c b/drivers/ata/pata_cs5536.c
index f7c0e4e319ed..2d34b9145dcb 100644
--- a/drivers/ata/pata_cs5536.c
+++ b/drivers/ata/pata_cs5536.c
@@ -261,7 +261,7 @@ static int cs5536_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                 return -ENODEV;
         }
 
-        return ata_pci_init_one(dev, ppi, &cs5536_sht);
+        return ata_pci_init_one(dev, ppi, &cs5536_sht, NULL);
 }
 
 static const struct pci_device_id cs5536[] = {
diff --git a/drivers/ata/pata_cypress.c b/drivers/ata/pata_cypress.c
index cbd6670ea0de..ae14969e1dfe 100644
--- a/drivers/ata/pata_cypress.c
+++ b/drivers/ata/pata_cypress.c
@@ -136,7 +136,7 @@ static int cy82c693_init_one(struct pci_dev *pdev, const struct pci_device_id *i
         if (PCI_FUNC(pdev->devfn) != 1)
                 return -ENODEV;
 
-        return ata_pci_init_one(pdev, ppi, &cy82c693_sht);
+        return ata_pci_init_one(pdev, ppi, &cy82c693_sht, NULL);
 }
 
 static const struct pci_device_id cy82c693[] = {
diff --git a/drivers/ata/pata_efar.c b/drivers/ata/pata_efar.c
index 0260edac2370..2f5b4848456a 100644
--- a/drivers/ata/pata_efar.c
+++ b/drivers/ata/pata_efar.c
@@ -275,7 +275,7 @@ static int efar_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                 dev_printk(KERN_DEBUG, &pdev->dev,
                            "version " DRV_VERSION "\n");
 
-        return ata_pci_init_one(pdev, ppi, &efar_sht);
+        return ata_pci_init_one(pdev, ppi, &efar_sht, NULL);
 }
 
 static const struct pci_device_id efar_pci_tbl[] = {
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index b62d398ed84b..c2d4923d4db7 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -356,9 +356,9 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                 .udma_mask = ATA_UDMA4,
                 .port_ops = &hpt366_port_ops
         };
-        struct ata_port_info info = info_hpt366;
-        const struct ata_port_info *ppi[] = { &info, NULL };
+        const struct ata_port_info *ppi[] = { &info_hpt366, NULL };
 
+        void *hpriv = NULL;
         u32 class_rev;
         u32 reg1;
         int rc;
@@ -383,17 +383,17 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
         /* info_hpt366 is safe against re-entry so we can scribble on it */
         switch((reg1 & 0x700) >> 8) {
                 case 5:
-                        info.private_data = &hpt366_40;
+                        hpriv = &hpt366_40;
                         break;
                 case 9:
-                        info.private_data = &hpt366_25;
+                        hpriv = &hpt366_25;
                         break;
                 default:
-                        info.private_data = &hpt366_33;
+                        hpriv = &hpt366_33;
                         break;
         }
         /* Now kick off ATA set up */
-        return ata_pci_init_one(dev, ppi, &hpt36x_sht);
+        return ata_pci_init_one(dev, ppi, &hpt36x_sht, hpriv);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index a43c19753669..fb37e3a161fc 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -831,10 +831,8 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
         };
 
         static const int MHz[4] = { 33, 40, 50, 66 };
-        const struct ata_port_info *port;
         void *private_data = NULL;
-        struct ata_port_info port_info;
-        const struct ata_port_info *ppi[] = { &port_info, NULL };
+        const struct ata_port_info *ppi[] = { NULL, NULL };
 
         u8 irqmask;
         u32 class_rev;
@@ -866,17 +864,17 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 
                 switch(class_rev) {
                         case 3:
-                                port = &info_hpt370;
+                                ppi[0] = &info_hpt370;
                                 chip_table = &hpt370;
                                 prefer_dpll = 0;
                                 break;
                         case 4:
-                                port = &info_hpt370a;
+                                ppi[0] = &info_hpt370a;
                                 chip_table = &hpt370a;
                                 prefer_dpll = 0;
                                 break;
                         case 5:
-                                port = &info_hpt372;
+                                ppi[0] = &info_hpt372;
                                 chip_table = &hpt372;
                                 break;
                         default:
@@ -889,21 +887,21 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                                 /* 372N if rev >= 2*/
                                 if (class_rev >= 2)
                                         return -ENODEV;
-                                port = &info_hpt372;
+                                ppi[0] = &info_hpt372;
                                 chip_table = &hpt372a;
                                 break;
                         case PCI_DEVICE_ID_TTI_HPT302:
                                 /* 302N if rev > 1 */
                                 if (class_rev > 1)
                                         return -ENODEV;
-                                port = &info_hpt372;
+                                ppi[0] = &info_hpt372;
                                 /* Check this */
                                 chip_table = &hpt302;
                                 break;
                         case PCI_DEVICE_ID_TTI_HPT371:
                                 if (class_rev > 1)
                                         return -ENODEV;
-                                port = &info_hpt372;
+                                ppi[0] = &info_hpt372;
                                 chip_table = &hpt371;
                                 /* Single channel device, master is not present
                                    but the BIOS (or us for non x86) must mark it
@@ -914,7 +912,7 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                                 break;
                         case PCI_DEVICE_ID_TTI_HPT374:
                                 chip_table = &hpt374;
-                                port = &info_hpt374;
+                                ppi[0] = &info_hpt374;
                                 break;
                         default:
                                 printk(KERN_ERR "pata_hpt37x: PCI table is bogus please report (%d).\n", dev->device);
@@ -993,7 +991,7 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                 int dpll, adjust;
 
                 /* Compute DPLL */
-                dpll = (port->udma_mask & 0xC0) ? 3 : 2;
+                dpll = (ppi[0]->udma_mask & 0xC0) ? 3 : 2;
 
                 f_low = (MHz[clock_slot] * 48) / MHz[dpll];
                 f_high = f_low + 2;
@@ -1033,19 +1031,16 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                  *      about lack of UDMA133 support on lower clocks
                  */
 
-                if (clock_slot < 2 && port == &info_hpt370)
-                        port = &info_hpt370_33;
-                if (clock_slot < 2 && port == &info_hpt370a)
-                        port = &info_hpt370a_33;
+                if (clock_slot < 2 && ppi[0] == &info_hpt370)
+                        ppi[0] = &info_hpt370_33;
+                if (clock_slot < 2 && ppi[0] == &info_hpt370a)
+                        ppi[0] = &info_hpt370a_33;
                 printk(KERN_INFO "pata_hpt37x: %s using %dMHz bus clock.\n",
                        chip_table->name, MHz[clock_slot]);
         }
 
         /* Now kick off ATA set up */
-        port_info = *port;
-        port_info.private_data = private_data;
-
-        return ata_pci_init_one(dev, ppi, &hpt37x_sht);
+        return ata_pci_init_one(dev, ppi, &hpt37x_sht, private_data);
 }
 
 static const struct pci_device_id hpt37x[] = {
diff --git a/drivers/ata/pata_hpt3x2n.c b/drivers/ata/pata_hpt3x2n.c
index 2c178c30116c..c774be93ae04 100644
--- a/drivers/ata/pata_hpt3x2n.c
+++ b/drivers/ata/pata_hpt3x2n.c
@@ -458,8 +458,7 @@ static int hpt3x2n_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                 .udma_mask = ATA_UDMA6,
                 .port_ops = &hpt3x2n_port_ops
         };
-        struct ata_port_info port = info;
-        const struct ata_port_info *ppi[] = { &port, NULL };
+        const struct ata_port_info *ppi[] = { &info, NULL };
 
         u8 irqmask;
         u32 class_rev;
@@ -468,6 +467,7 @@ static int hpt3x2n_init_one(struct pci_dev *dev, const struct pci_device_id *id)
         unsigned int f_low, f_high;
         int adjust;
         unsigned long iobase = pci_resource_start(dev, 4);
+        void *hpriv = NULL;
         int rc;
 
         rc = pcim_enable_device(dev);
@@ -554,9 +554,8 @@ static int hpt3x2n_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                pci_mhz);
         /* Set our private data up. We only need a few flags so we use
            it directly */
-        port.private_data = NULL;
         if (pci_mhz > 60) {
-                port.private_data = (void *)PCI66;
+                hpriv = (void *)PCI66;
                 /*
                  * On  HPT371N, if ATA clock is 66 MHz we must set bit 2 in
                  * the MISC. register to stretch the UltraDMA Tss timing.
@@ -567,7 +566,7 @@ static int hpt3x2n_init_one(struct pci_dev *dev, const struct pci_device_id *id)
         }
 
         /* Now kick off ATA set up */
-        return ata_pci_init_one(dev, ppi, &hpt3x2n_sht);
+        return ata_pci_init_one(dev, ppi, &hpt3x2n_sht, hpriv);
 }
 
 static const struct pci_device_id hpt3x2n[] = {
diff --git a/drivers/ata/pata_it8213.c b/drivers/ata/pata_it8213.c
index 291a0d6e2434..d23a46b75028 100644
--- a/drivers/ata/pata_it8213.c
+++ b/drivers/ata/pata_it8213.c
@@ -287,7 +287,7 @@ static int it8213_init_one (struct pci_dev *pdev, const struct pci_device_id *en
                 dev_printk(KERN_DEBUG, &pdev->dev,
                            "version " DRV_VERSION "\n");
 
-        return ata_pci_init_one(pdev, ppi, &it8213_sht);
+        return ata_pci_init_one(pdev, ppi, &it8213_sht, NULL);
 }
 
 static const struct pci_device_id it8213_pci_tbl[] = {
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index 63c5cf0d1fee..6a8a4ddf5bfe 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -722,7 +722,7 @@ static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
         else
                 ppi[0] = &info_smart;
 
-        return ata_pci_init_one(pdev, ppi, &it821x_sht);
+        return ata_pci_init_one(pdev, ppi, &it821x_sht, NULL);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
index 859e47a600cc..317f3474e0ba 100644
--- a/drivers/ata/pata_jmicron.c
+++ b/drivers/ata/pata_jmicron.c
@@ -105,20 +105,6 @@ static int jmicron_pre_reset(struct ata_link *link, unsigned long deadline)
         return ata_std_prereset(link, deadline);
 }
 
-/**
- *      jmicron_error_handler - Setup and error handler
- *      @ap: Port to handle
- *
- *      LOCKING:
- *      None (inherited from caller).
- */
-
-static void jmicron_error_handler(struct ata_port *ap)
-{
-        ata_bmdma_drive_eh(ap, jmicron_pre_reset, ata_std_softreset, NULL,
-                           ata_std_postreset);
-}
-
 /* No PIO or DMA methods needed for this device */
 
 static struct scsi_host_template jmicron_sht = {
@@ -127,7 +113,7 @@ static struct scsi_host_template jmicron_sht = {
 
 static struct ata_port_operations jmicron_ops = {
         .inherits               = &ata_bmdma_port_ops,
-        .error_handler          = jmicron_error_handler,
+        .prereset               = jmicron_pre_reset,
 };
 
 
@@ -158,7 +144,7 @@ static int jmicron_init_one (struct pci_dev *pdev, const struct pci_device_id *i
         };
         const struct ata_port_info *ppi[] = { &info, NULL };
 
-        return ata_pci_init_one(pdev, ppi, &jmicron_sht);
+        return ata_pci_init_one(pdev, ppi, &jmicron_sht, NULL);
 }
 
 static const struct pci_device_id jmicron_pci_tbl[] = {
diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c
index d8da4f344c0a..d38e64cd6097 100644
--- a/drivers/ata/pata_marvell.c
+++ b/drivers/ata/pata_marvell.c
@@ -75,20 +75,6 @@ static int marvell_cable_detect(struct ata_port *ap)
         return 0;       /* Our BUG macro needs the right markup */
 }
 
-/**
- *      marvell_error_handler - Setup and error handler
- *      @ap: Port to handle
- *
- *      LOCKING:
- *      None (inherited from caller).
- */
-
-static void marvell_error_handler(struct ata_port *ap)
-{
-        ata_bmdma_drive_eh(ap, marvell_pre_reset, ata_std_softreset, NULL,
-                           ata_std_postreset);
-}
-
 /* No PIO or DMA methods needed for this device */
 
 static struct scsi_host_template marvell_sht = {
@@ -98,7 +84,7 @@ static struct scsi_host_template marvell_sht = {
 static struct ata_port_operations marvell_ops = {
         .inherits               = &ata_bmdma_port_ops,
         .cable_detect           = marvell_cable_detect,
-        .error_handler          = marvell_error_handler,
+        .prereset               = marvell_pre_reset,
 };
 
 
@@ -142,7 +128,7 @@ static int marvell_init_one (struct pci_dev *pdev, const struct pci_device_id *i
         if (pdev->device == 0x6101)
                 ppi[1] = &ata_dummy_port_info;
 
-        return ata_pci_init_one(pdev, ppi, &marvell_sht);
+        return ata_pci_init_one(pdev, ppi, &marvell_sht, NULL);
 }
 
 static const struct pci_device_id marvell_pci_tbl[] = {
diff --git a/drivers/ata/pata_netcell.c b/drivers/ata/pata_netcell.c
index ae50a5e85cf1..349182840d24 100644
--- a/drivers/ata/pata_netcell.c
+++ b/drivers/ata/pata_netcell.c
@@ -71,7 +71,7 @@ static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *e
         ata_pci_clear_simplex(pdev);
 
         /* And let the library code do the work */
-        return ata_pci_init_one(pdev, port_info, &netcell_sht);
+        return ata_pci_init_one(pdev, port_info, &netcell_sht, NULL);
 }
 
 static const struct pci_device_id netcell_pci_tbl[] = {
diff --git a/drivers/ata/pata_ns87410.c b/drivers/ata/pata_ns87410.c
index 1bdca8f1e767..5a043e426480 100644
--- a/drivers/ata/pata_ns87410.c
+++ b/drivers/ata/pata_ns87410.c
@@ -163,7 +163,7 @@ static int ns87410_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                 .port_ops = &ns87410_port_ops
         };
         const struct ata_port_info *ppi[] = { &info, NULL };
-        return ata_pci_init_one(dev, ppi, &ns87410_sht);
+        return ata_pci_init_one(dev, ppi, &ns87410_sht, NULL);
 }
 
 static const struct pci_device_id ns87410[] = {
diff --git a/drivers/ata/pata_ns87415.c b/drivers/ata/pata_ns87415.c
index 42508940e4a9..cdd79d6fc0ee 100644
--- a/drivers/ata/pata_ns87415.c
+++ b/drivers/ata/pata_ns87415.c
@@ -375,7 +375,7 @@ static int ns87415_init_one (struct pci_dev *pdev, const struct pci_device_id *e
         pci_write_config_byte(pdev, 0x55, 0xEE);
         /* Select PIO0 8bit clocking */
         pci_write_config_byte(pdev, 0x54, 0xB7);
-        return ata_pci_init_one(pdev, ppi, &ns87415_sht);
+        return ata_pci_init_one(pdev, ppi, &ns87415_sht, NULL);
 }
 
 static const struct pci_device_id ns87415_pci_tbl[] = {
diff --git a/drivers/ata/pata_oldpiix.c b/drivers/ata/pata_oldpiix.c
index 9e3afadbd04a..7001b756819e 100644
--- a/drivers/ata/pata_oldpiix.c
+++ b/drivers/ata/pata_oldpiix.c
@@ -263,7 +263,7 @@ static int oldpiix_init_one (struct pci_dev *pdev, const struct pci_device_id *e
                 dev_printk(KERN_DEBUG, &pdev->dev,
                            "version " DRV_VERSION "\n");
 
-        return ata_pci_init_one(pdev, ppi, &oldpiix_sht);
+        return ata_pci_init_one(pdev, ppi, &oldpiix_sht, NULL);
 }
 
 static const struct pci_device_id oldpiix_pci_tbl[] = {
diff --git a/drivers/ata/pata_opti.c b/drivers/ata/pata_opti.c
index 8601d9c3cb39..5a5f20e03fc0 100644
--- a/drivers/ata/pata_opti.c
+++ b/drivers/ata/pata_opti.c
@@ -188,7 +188,7 @@ static int opti_init_one(struct pci_dev *dev, const struct pci_device_id *id)
         if (!printed_version++)
                 dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
 
-        return ata_pci_init_one(dev, ppi, &opti_sht);
+        return ata_pci_init_one(dev, ppi, &opti_sht, NULL);
 }
 
 static const struct pci_device_id opti[] = {
diff --git a/drivers/ata/pata_optidma.c b/drivers/ata/pata_optidma.c
index c376f9ef77c8..ba2819ff964b 100644
--- a/drivers/ata/pata_optidma.c
+++ b/drivers/ata/pata_optidma.c
@@ -445,7 +445,7 @@ static int optidma_init_one(struct pci_dev *dev, const struct pci_device_id *id)
         if (optiplus_with_udma(dev))
                 ppi[0] = &info_82c700_udma;
 
-        return ata_pci_init_one(dev, ppi, &optidma_sht);
+        return ata_pci_init_one(dev, ppi, &optidma_sht, NULL);
 }
 
 static const struct pci_device_id optidma[] = {
diff --git a/drivers/ata/pata_pdc202xx_old.c b/drivers/ata/pata_pdc202xx_old.c
index 5545fbab6a7e..8214100e3ac1 100644
--- a/drivers/ata/pata_pdc202xx_old.c
+++ b/drivers/ata/pata_pdc202xx_old.c
@@ -324,7 +324,7 @@ static int pdc202xx_init_one(struct pci_dev *dev, const struct pci_device_id *id
                                 return -ENODEV;
                 }
         }
-        return ata_pci_init_one(dev, ppi, &pdc202xx_sht);
+        return ata_pci_init_one(dev, ppi, &pdc202xx_sht, NULL);
 }
 
 static const struct pci_device_id pdc202xx[] = {
diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c
index 145d5ba92795..9ab84fc3798d 100644
--- a/drivers/ata/pata_radisys.c
+++ b/drivers/ata/pata_radisys.c
@@ -228,7 +228,7 @@ static int radisys_init_one (struct pci_dev *pdev, const struct pci_device_id *e
                 dev_printk(KERN_DEBUG, &pdev->dev,
                            "version " DRV_VERSION "\n");
 
-        return ata_pci_init_one(pdev, ppi, &radisys_sht);
+        return ata_pci_init_one(pdev, ppi, &radisys_sht, NULL);
 }
 
 static const struct pci_device_id radisys_pci_tbl[] = {
diff --git a/drivers/ata/pata_rz1000.c b/drivers/ata/pata_rz1000.c
index 04be6aee4354..462b72a31280 100644
--- a/drivers/ata/pata_rz1000.c
+++ b/drivers/ata/pata_rz1000.c
@@ -99,7 +99,7 @@ static int rz1000_init_one (struct pci_dev *pdev, const struct pci_device_id *en
                 printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
 
         if (rz1000_fifo_disable(pdev) == 0)
-                return ata_pci_init_one(pdev, ppi, &rz1000_sht);
+                return ata_pci_init_one(pdev, ppi, &rz1000_sht, NULL);
 
         printk(KERN_ERR DRV_NAME ": failed to disable read-ahead on chipset..\n");
         /* Not safe to use so skip */
diff --git a/drivers/ata/pata_sc1200.c b/drivers/ata/pata_sc1200.c
index 38c7fb0bebe9..42efacf73c79 100644
--- a/drivers/ata/pata_sc1200.c
+++ b/drivers/ata/pata_sc1200.c
@@ -213,7 +213,7 @@ static int sc1200_init_one(struct pci_dev *dev, const struct pci_device_id *id)
         /* Can't enable port 2 yet, see top comments */
         const struct ata_port_info *ppi[] = { &info, &ata_dummy_port_info };
 
-        return ata_pci_init_one(dev, ppi, &sc1200_sht);
+        return ata_pci_init_one(dev, ppi, &sc1200_sht, NULL);
 }
 
 static const struct pci_device_id sc1200[] = {
diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
index 515b5b70a555..2f4f9b0f89de 100644
--- a/drivers/ata/pata_serverworks.c
+++ b/drivers/ata/pata_serverworks.c
@@ -461,7 +461,7 @@ static int serverworks_init_one(struct pci_dev *pdev, const struct pci_device_id
         if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE)
                 ata_pci_clear_simplex(pdev);
 
-        return ata_pci_init_one(pdev, ppi, &serverworks_sht);
+        return ata_pci_init_one(pdev, ppi, &serverworks_sht, NULL);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c
index 5313deeffa6d..63fafc6d6da3 100644
--- a/drivers/ata/pata_sil680.c
+++ b/drivers/ata/pata_sil680.c
@@ -362,7 +362,7 @@ static int __devinit sil680_init_one(struct pci_dev *pdev,
                                  &sil680_sht);
 
 use_ioports:
-        return ata_pci_init_one(pdev, ppi, &sil680_sht);
+        return ata_pci_init_one(pdev, ppi, &sil680_sht, NULL);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index 32be13ba5f06..28abfc26e7a4 100644
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -690,8 +690,7 @@ static void sis_fixup(struct pci_dev *pdev, struct sis_chipset *sis)
 static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
         static int printed_version;
-        struct ata_port_info port;
-        const struct ata_port_info *ppi[] = { &port, NULL };
+        const struct ata_port_info *ppi[] = { NULL, NULL };
         struct pci_dev *host = NULL;
         struct sis_chipset *chipset = NULL;
         struct sis_chipset *sets;
@@ -831,12 +830,11 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         if (chipset == NULL)
                 return -ENODEV;
 
-        port = *chipset->info;
-        port.private_data = chipset;
+        ppi[0] = chipset->info;
 
         sis_fixup(pdev, chipset);
 
-        return ata_pci_init_one(pdev, ppi, &sis_sht);
+        return ata_pci_init_one(pdev, ppi, &sis_sht, chipset);
 }
 
 static const struct pci_device_id sis_pci_tbl[] = {
diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c
index 2d14b2505c7d..1d97f920bd2b 100644
--- a/drivers/ata/pata_sl82c105.c
+++ b/drivers/ata/pata_sl82c105.c
@@ -323,7 +323,7 @@ static int sl82c105_init_one(struct pci_dev *dev, const struct pci_device_id *id
         val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16;
         pci_write_config_dword(dev, 0x40, val);
 
-        return ata_pci_init_one(dev, ppi, &sl82c105_sht);
+        return ata_pci_init_one(dev, ppi, &sl82c105_sht, NULL);
 }
 
 static const struct pci_device_id sl82c105[] = {
diff --git a/drivers/ata/pata_triflex.c b/drivers/ata/pata_triflex.c
index 86dc66c37389..f07b0e5df222 100644
--- a/drivers/ata/pata_triflex.c
+++ b/drivers/ata/pata_triflex.c
@@ -206,7 +206,7 @@ static int triflex_init_one(struct pci_dev *dev, const struct pci_device_id *id)
         if (!printed_version++)
                 dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
 
-        return ata_pci_init_one(dev, ppi, &triflex_sht);
+        return ata_pci_init_one(dev, ppi, &triflex_sht, NULL);
 }
 
 static const struct pci_device_id triflex[] = {
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index e66bb85ad3d1..f4092cbd566f 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -442,8 +442,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
                 .udma_mask = ATA_UDMA6, /* FIXME: should check north bridge */
                 .port_ops = &via_port_ops
         };
-        struct ata_port_info type;
-        const struct ata_port_info *ppi[] = { &type, NULL };
+        const struct ata_port_info *ppi[] = { NULL, NULL };
         struct pci_dev *isa = NULL;
         const struct via_isa_bridge *config;
         static int printed_version;
@@ -491,25 +490,25 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
         switch(config->flags & VIA_UDMA) {
                 case VIA_UDMA_NONE:
                         if (config->flags & VIA_NO_UNMASK)
-                                type = via_mwdma_info_borked;
+                                ppi[0] = &via_mwdma_info_borked;
                         else
-                                type = via_mwdma_info;
+                                ppi[0] = &via_mwdma_info;
                         break;
                 case VIA_UDMA_33:
-                        type = via_udma33_info;
+                        ppi[0] = &via_udma33_info;
                         break;
                 case VIA_UDMA_66:
-                        type = via_udma66_info;
+                        ppi[0] = &via_udma66_info;
                         /* The 66 MHz devices require we enable the clock */
                         pci_read_config_dword(pdev, 0x50, &timing);
                         timing |= 0x80008;
                         pci_write_config_dword(pdev, 0x50, timing);
                         break;
                 case VIA_UDMA_100:
-                        type = via_udma100_info;
+                        ppi[0] = &via_udma100_info;
                         break;
                 case VIA_UDMA_133:
-                        type = via_udma133_info;
+                        ppi[0] = &via_udma133_info;
                         break;
                 default:
                         WARN_ON(1);
@@ -524,9 +523,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
         }
 
         /* We have established the device type, now fire it up */
-        type.private_data = (void *)config;
-
-        return ata_pci_init_one(pdev, ppi, &via_sht);
+        return ata_pci_init_one(pdev, ppi, &via_sht, (void *)config);
 }
 
 #ifdef CONFIG_PM