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e446d32687
The current algorithm scans all PCI busses (0..ff) and all devices (0..31) on each bus for bridges and determines the maximum of all subordinate busses encountered. However, the algorithm does not scan all functions present in multi-function devices -- I have a PCI express root complex (82801H) where multiple (non-zero index) functions are 'PCI bridges' whose subordinate bus number is missed by the original algorithm. This commit makes sure that the scan is extended to all functions of multi-function devices. See #2067