Linux v2.6.16-rc2

[powerpc.git] / drivers / pci / pci.c

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e74d758..d2d1879 100644 (file)
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -19,6 +19,7 @@
 #include <asm/dma.h>   /* isa_dma_bridge_buggy */
 #include "pci.h"
 
+#if 0
 
 /**
  * pci_bus_max_busnr - returns maximum PCI bus number of given bus' children
@@ -63,11 +64,40 @@ pci_max_busnr(void)
        return max;
 }
 
+#endif  /*  0  */
+
+static int __pci_find_next_cap(struct pci_bus *bus, unsigned int devfn, u8 pos, int cap)
+{
+       u8 id;
+       int ttl = 48;
+
+       while (ttl--) {
+               pci_bus_read_config_byte(bus, devfn, pos, &pos);
+               if (pos < 0x40)
+                       break;
+               pos &= ~3;
+               pci_bus_read_config_byte(bus, devfn, pos + PCI_CAP_LIST_ID,
+                                        &id);
+               if (id == 0xff)
+                       break;
+               if (id == cap)
+                       return pos;
+               pos += PCI_CAP_LIST_NEXT;
+       }
+       return 0;
+}
+
+int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap)
+{
+       return __pci_find_next_cap(dev->bus, dev->devfn,
+                                  pos + PCI_CAP_LIST_NEXT, cap);
+}
+EXPORT_SYMBOL_GPL(pci_find_next_capability);
+
 static int __pci_bus_find_cap(struct pci_bus *bus, unsigned int devfn, u8 hdr_type, int cap)
 {
        u16 status;
-       u8 pos, id;
-       int ttl = 48;
+       u8 pos;
 
        pci_bus_read_config_word(bus, devfn, PCI_STATUS, &status);
        if (!(status & PCI_STATUS_CAP_LIST))
@@ -76,24 +106,15 @@ static int __pci_bus_find_cap(struct pci_bus *bus, unsigned int devfn, u8 hdr_ty
        switch (hdr_type) {
        case PCI_HEADER_TYPE_NORMAL:
        case PCI_HEADER_TYPE_BRIDGE:
-               pci_bus_read_config_byte(bus, devfn, PCI_CAPABILITY_LIST, &pos);
+               pos = PCI_CAPABILITY_LIST;
                break;
        case PCI_HEADER_TYPE_CARDBUS:
-               pci_bus_read_config_byte(bus, devfn, PCI_CB_CAPABILITY_LIST, &pos);
+               pos = PCI_CB_CAPABILITY_LIST;
                break;
        default:
                return 0;
        }
-       while (ttl-- && pos >= 0x40) {
-               pos &= ~3;
-               pci_bus_read_config_byte(bus, devfn, pos + PCI_CAP_LIST_ID, &id);
-               if (id == 0xff)
-                       break;
-               if (id == cap)
-                       return pos;
-               pci_bus_read_config_byte(bus, devfn, pos + PCI_CAP_LIST_NEXT, &pos);
-       }
-       return 0;
+       return __pci_find_next_cap(bus, devfn, pos, cap);
 }
 
 /**
@@ -142,6 +163,7 @@ int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap)
        return __pci_bus_find_cap(bus, devfn, hdr_type & 0x7f, cap);
 }
 
+#if 0
 /**
  * pci_find_ext_capability - Find an extended capability
  * @dev: PCI device to query
@@ -189,6 +211,7 @@ int pci_find_ext_capability(struct pci_dev *dev, int cap)
 
        return 0;
 }
+#endif  /*  0  */
 
 /**
  * pci_find_parent_resource - return resource region of parent bus of given region
@@ -569,7 +592,7 @@ pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge)
 {
        u8 pin;
 
-       pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
+       pin = dev->pin;
        if (!pin)
                return -1;
        pin--;
@@ -899,8 +922,6 @@ EXPORT_SYMBOL_GPL(pci_restore_bars);
 EXPORT_SYMBOL(pci_enable_device_bars);
 EXPORT_SYMBOL(pci_enable_device);
 EXPORT_SYMBOL(pci_disable_device);
-EXPORT_SYMBOL(pci_max_busnr);
-EXPORT_SYMBOL(pci_bus_max_busnr);
 EXPORT_SYMBOL(pci_find_capability);
 EXPORT_SYMBOL(pci_bus_find_capability);
 EXPORT_SYMBOL(pci_release_regions);