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Subject[PATCH v4 15/16] PCI: Remove pci_find_upstream_pcie_bridge()
From
Date
It's broken and has no users.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---
drivers/pci/search.c | 35 -----------------------------------
include/linux/pci.h | 11 -----------
2 files changed, 46 deletions(-)

diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index df38f73..b8e65c2 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -104,41 +104,6 @@ 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;
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 85ab35e..903c7d6 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1804,15 +1804,4 @@ 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);
-
#endif /* LINUX_PCI_H */


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