PCI: remove pci_find_device_reverse() (fd9b37cc) · Commits · 戴 / test

drivers/pci/search.c

+0 −38

Original line number	Diff line number	Diff line
		@@ -357,43 +357,6 @@ exit:
		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
		@@ -469,7 +432,6 @@ EXPORT_SYMBOL(pci_dev_present);
		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);

include/linux/pci.h

+0 −1

Original line number	Diff line number	Diff line
		@@ -469,7 +469,6 @@ extern void pci_sort_breadthfirst(void);
		/* Generic PCI functions exported to card drivers */

		struct pci_dev pci_find_device (unsigned int vendor, unsigned int device, const struct pci_dev from);
		struct pci_dev pci_find_device_reverse (unsigned int vendor, unsigned int device, const struct pci_dev from);
		struct pci_dev *pci_find_slot (unsigned int bus, unsigned int devfn);
		int pci_find_capability (struct pci_dev *dev, int cap);
		int pci_find_next_capability (struct pci_dev *dev, u8 pos, int cap);

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