Bjorn Helgaas 77a0dfcd8a PCI: Document reason for using pci_is_root_bus() ...

Some code assumes "bus->self == NULL" means the bus is a root bus.  This
adds a comment explaining why this is incorrect ("virtual" buses added for
SR-IOV have "bus->self == NULL" but are not root buses).

No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

2013-09-25 15:43:58 -06:00

63 KiB

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