ide: remove write-only hwif->hw

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

11 files changed, 40 insertions, 51 deletions

diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
index 22fc46d63448..410a0d13e35e 100644
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -450,8 +450,6 @@ icside_setup(void __iomem *base, struct cardinfo *info, struct expansion_card *e
         if (hwif) {
                 int i;
 
-                memset(&hwif->hw, 0, sizeof(hw_regs_t));
-
                 /*
                  * Ensure we're using MMIO
                  */
@@ -459,13 +457,10 @@ icside_setup(void __iomem *base, struct cardinfo *info, struct expansion_card *e
                 hwif->mmio = 1;
 
                 for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
-                        hwif->hw.io_ports[i] = port;
                         hwif->io_ports[i] = port;
                         port += 1 << info->stepping;
                 }
-                hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)base + info->ctrloffset;
                 hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)base + info->ctrloffset;
-                hwif->hw.irq  = ec->irq;
                 hwif->irq     = ec->irq;
                 hwif->noprobe = 0;
                 hwif->chipset = ide_acorn;
diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c
index 96cd3f5b9adc..0775a3afef48 100644
--- a/drivers/ide/arm/rapide.c
+++ b/drivers/ide/arm/rapide.c
@@ -24,13 +24,11 @@ rapide_locate_hwif(void __iomem *base, void __iomem *ctrl, unsigned int sz, int
                 goto out;
 
         for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
-                hwif->hw.io_ports[i] = port;
                 hwif->io_ports[i] = port;
                 port += sz;
         }
-        hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
         hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
-        hwif->hw.irq = hwif->irq = irq;
+        hwif->irq = irq;
         hwif->mmio = 1;
         default_hwif_mmiops(hwif);
 out:
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index b7e872e29f9c..674a65c1a130 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -168,7 +168,6 @@ static void init_hwif_default(ide_hwif_t *hwif, unsigned int index)
 
         ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, &hwif->irq);
 
-        memcpy(&hwif->hw, &hw, sizeof(hw));
         memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports));
 
         hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
@@ -214,7 +213,7 @@ static void __init init_ide_data (void)
                 init_hwif_data(hwif, index);
                 init_hwif_default(hwif, index);
 #if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI)
-                hwif->irq = hwif->hw.irq =
+                hwif->irq =
                         ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]);
 #endif
         }
@@ -730,8 +729,7 @@ found:
         }
         if (hwif->present)
                 return -1;
-        memcpy(&hwif->hw, hw, sizeof(*hw));
-        memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
+        memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports));
         hwif->irq = hw->irq;
         hwif->noprobe = 0;
         hwif->fixup = fixup;
@@ -1417,6 +1415,9 @@ static int __init ide_setup(char *s)
                         "reset", "minus6", "ata66", "minus8", "minus9",
                         "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb",
                         "dtc2278", "umc8672", "ali14xx", NULL };
+
+                hw_regs_t hwregs;
+
                 hw = s[3] - '0';
                 hwif = &ide_hwifs[hw];
                 i = match_parm(&s[4], ide_words, vals, 3);
@@ -1526,9 +1527,9 @@ static int __init ide_setup(char *s)
                         case 2: /* base,ctl */
                                 vals[2] = 0;    /* default irq = probe for it */
                         case 3: /* base,ctl,irq */
-                                hwif->hw.irq = vals[2];
-                                ide_init_hwif_ports(&hwif->hw, (unsigned long) vals[0], (unsigned long) vals[1], &hwif->irq);
-                                memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
+                                memset(&hwregs, 0, sizeof(hwregs));
+                                ide_init_hwif_ports(&hwregs, vals[0], vals[1], &hwif->irq);
+                                memcpy(hwif->io_ports, hwregs.io_ports, sizeof(hwif->io_ports));
                                 hwif->irq      = vals[2];
                                 hwif->noprobe  = 0;
                                 hwif->chipset  = ide_forced;
diff --git a/drivers/ide/legacy/ide_platform.c b/drivers/ide/legacy/ide_platform.c
index 1bc9a57b6198..7bb79f53dac8 100644
--- a/drivers/ide/legacy/ide_platform.c
+++ b/drivers/ide/legacy/ide_platform.c
@@ -39,19 +39,18 @@ static ide_hwif_t *__devinit plat_ide_locate_hwif(void __iomem *base,
         if (hwif == NULL)
                 goto out;
 
-        hwif->hw.io_ports[IDE_DATA_OFFSET] = port;
+        hwif->io_ports[IDE_DATA_OFFSET] = port;
 
         port += (1 << pdata->ioport_shift);
         for (i = IDE_ERROR_OFFSET; i <= IDE_STATUS_OFFSET;
              i++, port += (1 << pdata->ioport_shift))
-                hwif->hw.io_ports[i] = port;
+                hwif->io_ports[i] = port;
 
-        hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
+        hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
 
-        memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
-        hwif->hw.irq = hwif->irq = irq;
+        hwif->irq = irq;
 
-        hwif->chipset = hwif->hw.chipset = ide_generic;
+        hwif->chipset = ide_generic;
 
         if (mmio) {
                 hwif->mmio = 1;
diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index be43024a359c..97af57a714cd 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -601,9 +601,9 @@ static int au_ide_probe(struct device *dev)
         _auide_hwif *ahwif = &auide_hwif;
         ide_hwif_t *hwif;
         struct resource *res;
-        hw_regs_t *hw;
         int ret = 0;
         u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+        hw_regs_t hw;
 
 #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
         char *mode = "MWDMA2";
@@ -645,12 +645,12 @@ static int au_ide_probe(struct device *dev)
         /* FIXME:  This might possibly break PCMCIA IDE devices */
 
         hwif                            = &ide_hwifs[pdev->id];
-        hw                              = &hwif->hw;
-        hwif->irq = hw->irq             = ahwif->irq;
+        hwif->irq                       = ahwif->irq;
         hwif->chipset                   = ide_au1xxx;
 
-        auide_setup_ports(hw, ahwif);
-        memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports));
+        memset(&hw, 0, sizeof(hw));
+        auide_setup_ports(&hw, ahwif);
+        memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports));
 
         hwif->ultra_mask                = 0x0;  /* Disable Ultra DMA */
 #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c
index 6ccc51d77e88..521edd41b572 100644
--- a/drivers/ide/mips/swarm.c
+++ b/drivers/ide/mips/swarm.c
@@ -120,14 +120,11 @@ static int __devinit swarm_ide_probe(struct device *dev)
         hwif->noprobe = 0;
 
         for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
-                hwif->hw.io_ports[i] =
+                hwif->io_ports[i] =
                                 (unsigned long)(base + ((0x1f0 + i) << 5));
-        hwif->hw.io_ports[IDE_CONTROL_OFFSET] =
+        hwif->io_ports[IDE_CONTROL_OFFSET] =
                                 (unsigned long)(base + (0x3f6 << 5));
-        hwif->hw.irq = K_INT_GB_IDE;
-
-        memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
-        hwif->irq = hwif->hw.irq;
+        hwif->irq = K_INT_GB_IDE;
 
         idx[0] = hwif->index;
 
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index f6d4b4136a89..de820aa58cd0 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -655,10 +655,12 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
         }
 
         if (hwif->io_ports[IDE_DATA_OFFSET] != cmd_base) {
+                hw_regs_t hw;
+
                 /* Initialize the IO registers */
-                sgiioc4_init_hwif_ports(&hwif->hw, cmd_base, ctl, irqport);
-                memcpy(hwif->io_ports, hwif->hw.io_ports,
-                       sizeof (hwif->io_ports));
+                memset(&hw, 0, sizeof(hw));
+                sgiioc4_init_hwif_ports(&hw, cmd_base, ctl, irqport);
+                memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports));
                 hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
         }
 
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index 463bfda84265..732043b4deb8 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -754,16 +754,11 @@ static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
                 hwif->sata_misc[SATA_IEN_OFFSET]        = base + 0x148;
         }
 
-        hw.irq                          = hwif->pci_dev->irq;
+        memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports));
 
-        memcpy(&hwif->hw, &hw, sizeof(hw));
-        memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
+        hwif->irq = dev->irq;
 
-        hwif->irq                       = hw.irq;
-
-        base = (unsigned long) addr;
-
-        hwif->dma_base                  = base + (ch ? 0x08 : 0x00);
+        hwif->dma_base = (unsigned long)addr + (ch ? 0x08 : 0x00);
 
         hwif->mmio = 1;
 }
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index 959afe47c374..816b5311dad6 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1040,6 +1040,7 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
         struct device_node *np = pmif->node;
         const int *bidp;
         u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+        hw_regs_t hw;
 
         pmif->cable_80 = 0;
         pmif->broken_dma = pmif->broken_dma_warn = 0;
@@ -1125,8 +1126,9 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
         /* Tell common code _not_ to mess with resources */
         hwif->mmio = 1;
         hwif->hwif_data = pmif;
-        pmac_ide_init_hwif_ports(&hwif->hw, pmif->regbase, 0, &hwif->irq);
-        memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
+        memset(&hw, 0, sizeof(hw));
+        pmac_ide_init_hwif_ports(&hw, pmif->regbase, 0, &hwif->irq);
+        memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports));
         hwif->chipset = ide_pmac;
         hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET] || pmif->mediabay;
         hwif->hold = pmif->mediabay;
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 875167e11cd1..71be6999f967 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -387,14 +387,15 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, ide_pci_device_t *d,
                 return NULL;    /* no room in ide_hwifs[] */
         if (hwif->io_ports[IDE_DATA_OFFSET] != base ||
             hwif->io_ports[IDE_CONTROL_OFFSET] != (ctl | 2)) {
-                memset(&hwif->hw, 0, sizeof(hwif->hw));
+                hw_regs_t hw;
+
+                memset(&hw, 0, sizeof(hw));
 #ifndef CONFIG_IDE_ARCH_OBSOLETE_INIT
-                ide_std_init_ports(&hwif->hw, base, (ctl | 2));
-                hwif->hw.io_ports[IDE_IRQ_OFFSET] = 0;
+                ide_std_init_ports(&hw, base, ctl | 2);
 #else
-                ide_init_hwif_ports(&hwif->hw, base, (ctl | 2), NULL);
+                ide_init_hwif_ports(&hw, base, ctl | 2, NULL);
 #endif
-                memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
+                memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports));
                 hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
         }
         hwif->chipset = d->chipset ? d->chipset : ide_pci;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 1e6bf04160d8..ff1024eadbd1 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -659,7 +659,6 @@ typedef struct hwif_s {
         unsigned long   sata_scr[SATA_NR_PORTS];
         unsigned long   sata_misc[SATA_NR_PORTS];
 
-        hw_regs_t       hw;             /* Hardware info */
         ide_drive_t     drives[MAX_DRIVES];     /* drive info */
 
         u8 major;       /* our major number */