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PCI: Turn on reallocation for unassigned resources with host bridge o…
…ffset Previously we did not turn on automatic PCI resource reallocation for unassigned IOV resources behind a host bridge with address offset. This patch fixes that bug. The intent was that "!r->start" would check for a BAR containing zero. But that check is incorrect for host bridges that apply an offset, because in that case the resource address is not the same as the bus address. This patch fixes that by converting the resource address back to a bus address before checking for zero. [bhelgaas: changelog] Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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