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44a5440a0a
When constructing NvidiaPCIDevice objects for each 'parent' device in the
'/sys/class/mdev_bus' directory, use the default PCI devices root
'/sys/bus/pci/devices'. All devices in '/sys/class/mdev_bus' will have
a corresponding directory at '/sys/bus/pci/devices'.
Starting with bf3f431fc8
the construction of the NvidiaPCIDevice object will fail when attempting to detect the physfn.
When SRIOV is used, all the VFs will show up under '/sys/class/mdev_bus', but the physfn will
only show up under '/sys/bus/pci/devices'.
Signed-off-by: Christopher Desiniotis <cdesiniotis@nvidia.com>