Commit bee3f304 authored by Alex Williamson's avatar Alex Williamson Committed by Bjorn Helgaas
Browse files

PCI: Remove unused pci_find_upstream_pcie_bridge() 



pci_find_upstream_pcie_bridge() is unused, so remove it.

Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent be63497c

drivers/pci/search.c

+0 −34
Original line number Diff line number Diff line
@@ -103,40 +103,6 @@ int pci_for_each_dma_alias(struct pci_dev *pdev, 
	return ret;

}



/*

 * find the upstream PCIe-to-PCI bridge of a PCI device

 * if the device is PCIE, return NULL

 * if the device isn't connected to a PCIe bridge (that is its parent is a

 * legacy PCI bridge and the bridge is directly connected to bus 0), return its

 * parent

 */

struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev)

{

	struct pci_dev *tmp = NULL;



	if (pci_is_pcie(pdev))

		return NULL;

	while (1) {

		if (pci_is_root_bus(pdev->bus))

			break;

		pdev = pdev->bus->self;

		/* a p2p bridge */

		if (!pci_is_pcie(pdev)) {

			tmp = pdev;

			continue;

		}

		/* PCI device should connect to a PCIe bridge */

		if (pci_pcie_type(pdev) != PCI_EXP_TYPE_PCI_BRIDGE) {

			/* Busted hardware? */

			WARN_ON_ONCE(1);

			return NULL;

		}

		return pdev;

	}



	return tmp;

}



static struct pci_bus *pci_do_find_bus(struct pci_bus *bus, unsigned char busnr)

{

	struct pci_bus *child;

include/linux/pci.h

+0 −11
Original line number Diff line number Diff line
@@ -1828,17 +1828,6 @@ int pci_for_each_dma_alias(struct pci_dev *pdev, 
			   int (*fn)(struct pci_dev *pdev,

				     u16 alias, void *data), void *data);



/**

 * pci_find_upstream_pcie_bridge - find upstream PCIe-to-PCI bridge of a device

 * @pdev: the PCI device

 *

 * if the device is PCIE, return NULL

 * if the device isn't connected to a PCIe bridge (that is its parent is a

 * legacy PCI bridge and the bridge is directly connected to bus 0), return its

 * parent

 */

struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);



/* helper functions for operation of device flag */

static inline void pci_set_dev_assigned(struct pci_dev *pdev)

{