Bjorn Helgaas 5a21d70dbd PCI: add struct pci_host_bridge and a list of all bridges found
This adds a list of all PCI host bridges we find and a way to look up
the host bridge from a pci_dev.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-02-23 20:18:59 -07:00
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