DECLARE_RWSEM(pci_bus_sem);
-static struct pci_bus * __devinit
+static struct pci_bus *
pci_do_find_bus(struct pci_bus* bus, unsigned char busnr)
{
struct pci_bus* child;
* can cause some machines to crash. So here we detect and flag that
* situation and bail out early.
*/
- if (unlikely(list_empty(&pci_devices))) {
- printk(KERN_INFO "pci_find_subsys() called while pci_devices "
- "is still empty\n");
+ if (unlikely(list_empty(&pci_devices)))
return NULL;
- }
down_read(&pci_bus_sem);
n = from ? from->global_list.next : pci_devices.next;
* can cause some machines to crash. So here we detect and flag that
* situation and bail out early.
*/
- if (unlikely(list_empty(&pci_devices))) {
- printk(KERN_NOTICE "pci_get_subsys() called while pci_devices "
- "is still empty\n");
+ if (unlikely(list_empty(&pci_devices)))
return NULL;
- }
down_read(&pci_bus_sem);
n = from ? from->global_list.next : pci_devices.next;
return dev;
}
-/**
- * pci_find_device_reverse - begin or continue searching for a PCI device by vendor/device id
- * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
- * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
- * @from: Previous PCI device found in search, or %NULL for new search.
- *
- * Iterates through the list of known PCI devices in the reverse order of
- * pci_find_device().
- * If a PCI device is found with a matching @vendor and @device, a pointer to
- * its device structure is returned. Otherwise, %NULL is returned.
- * A new search is initiated by passing %NULL as the @from argument.
- * Otherwise if @from is not %NULL, searches continue from previous device
- * on the global list.
- */
-struct pci_dev *
-pci_find_device_reverse(unsigned int vendor, unsigned int device, const struct pci_dev *from)
-{
- struct list_head *n;
- struct pci_dev *dev;
-
- WARN_ON(in_interrupt());
- down_read(&pci_bus_sem);
- n = from ? from->global_list.prev : pci_devices.prev;
-
- while (n && (n != &pci_devices)) {
- dev = pci_dev_g(n);
- if ((vendor == PCI_ANY_ID || dev->vendor == vendor) &&
- (device == PCI_ANY_ID || dev->device == device))
- goto exit;
- n = n->prev;
- }
- dev = NULL;
-exit:
- up_read(&pci_bus_sem);
- return dev;
-}
-
/**
* pci_get_class - begin or continue searching for a PCI device by class
* @class: search for a PCI device with this class designation
EXPORT_SYMBOL(pci_find_present);
EXPORT_SYMBOL(pci_find_device);
-EXPORT_SYMBOL(pci_find_device_reverse);
EXPORT_SYMBOL(pci_find_slot);
/* For boot time work */
EXPORT_SYMBOL(pci_find_bus);