| commit | c6bde215acfd637708142ae671843b6f0eadbc6d | [log] [tgz] |
|---|---|---|
| author | Bjorn Helgaas <bhelgaas@google.com> | Wed Nov 06 10:11:48 2013 -0700 |
| committer | Bjorn Helgaas <bhelgaas@google.com> | Thu Nov 07 14:44:27 2013 -0700 |
| tree | 675cb68ac1aff4f6444e231956dc55ec92a8cb61 | |
| parent | 0e4ccb1505a9e29c50170742ce26ac4655baab2d [diff] |
PCI: Add pci_upstream_bridge() This adds a pci_upstream_bridge() interface to find the PCI-to-PCI bridge upstream from a device. This is typically just "dev->bus->self", but in the case of a VF on a virtual bus, we have to start from the corresponding PF. Returns NULL if there is no upstream PCI bridge, i.e., if the device is on a root bus. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Yinghai Lu <yinghai@kernel.org>