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PCI: Remove unused pci_find_upstream_pcie_bridge()

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pci_find_upstream_pcie_bridge() is unused, so remove it.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Alex Williamson 2014-09-22 14:46:13 -06:00 committed by Bjorn Helgaas
parent be63497c41
commit bee3f30443
2 changed files with 0 additions and 45 deletions
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34
drivers/pci/search.c
View File

@ -103,40 +103,6 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
return ret; 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) static struct pci_bus *pci_do_find_bus(struct pci_bus *bus, unsigned char busnr)
{ {
struct pci_bus *child; struct pci_bus *child;

11
include/linux/pci.h
View File

@ -1828,17 +1828,6 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
int (*fn)(struct pci_dev *pdev, int (*fn)(struct pci_dev *pdev,
u16 alias, void *data), void *data); 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 */ /* helper functions for operation of device flag */
static inline void pci_set_dev_assigned(struct pci_dev *pdev) static inline void pci_set_dev_assigned(struct pci_dev *pdev)
{ {