68 		 * PCIe-to-PCI/X bridges alias transactions from downstream  in pci_for_each_dma_alias()
127  * pci_find_bus - locate PCI bus from a given domain and bus number
153  * @from: Previous PCI bus found, or %NULL for new search.
156  * initiated by passing %NULL as the @from argument.  Otherwise if
157  * @from is not %NULL, searches continue from next device on the
160 struct pci_bus *pci_find_next_bus(const struct pci_bus *from)  in pci_find_next_bus()  argument
167 	n = from ? from->node.next : pci_root_buses.next;  in pci_find_next_bus()
251  * @from: Previous PCI device found in search, or %NULL for new search.
256  * A new search is initiated by passing %NULL as the @from argument.  Otherwise
257  * if @from is not %NULL, searches continue from next device on the global
258  * list.  The reference count for @from is always decremented if it is not
265 					 struct pci_dev *from)  in pci_get_dev_by_id()  argument
272 	if (from)  in pci_get_dev_by_id()
273 		dev_start = &from->dev;  in pci_get_dev_by_id()
278 	pci_dev_put(from);  in pci_get_dev_by_id()
288  * @from: Previous PCI device found in search, or %NULL for new search.
294  * passing %NULL as the @from argument.  Otherwise if @from is not %NULL,
295  * searches continue from next device on the global list.
296  * The reference count for @from is always decremented if it is not %NULL.
300 			       struct pci_dev *from)  in pci_get_subsys()  argument
309 	return pci_get_dev_by_id(&id, from);  in pci_get_subsys()
317  * @from: Previous PCI device found in search, or %NULL for new search.
323  * as the @from argument.  Otherwise if @from is not %NULL, searches continue
324  * from next device on the global list.  The reference count for @from is
328 			       struct pci_dev *from)  in pci_get_device()  argument
330 	return pci_get_subsys(vendor, device, PCI_ANY_ID, PCI_ANY_ID, from);  in pci_get_device()
337  * @from: Previous PCI device found in search, or %NULL for new search.
343  * A new search is initiated by passing %NULL as the @from argument.
344  * Otherwise if @from is not %NULL, searches continue from next device
345  * on the global list.  The reference count for @from is always decremented
348 struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from)  in pci_get_class()  argument
359 	return pci_get_dev_by_id(&id, from);  in pci_get_class()
369  * by this function, so if that device is removed from the system right after