PCI: Clarify the "scan anyway" comment in pci_scan_bridge()
Initially when we encountered a bus that was already present we skipped
it. Since 74710ded8e
'PCI: always scan child buses' we continue
scanning in order to allow user triggered rescans of already existing
busses.
The old comment suggested that the reason for continuing the scan is a
bug in the i450NX chipset. This is not the case.
Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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@ -805,11 +805,10 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass)
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goto out;
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/*
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* If we already got to this bus through a different bridge,
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* don't re-add it. This can happen with the i450NX chipset.
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*
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* However, we continue to descend down the hierarchy and
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* scan remaining child buses.
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* The bus might already exist for two reasons: Either we are
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* rescanning the bus or the bus is reachable through more than
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* one bridge. The second case can happen with the i450NX
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* chipset.
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*/
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child = pci_find_bus(pci_domain_nr(bus), secondary);
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if (!child) {
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