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PCI/ACPI: Reserve firmware-allocated resources for hot-added root buses

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Firmware may have assigned PCI BARs for hot-added devices, so reserve
those resources before trying to allocate more.

[bhelgaas: move empty weak definition here]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Yinghai Lu
2012-11-03 21:39:31 -07:00
committed by Bjorn Helgaas
parent b95168e010
commit 3c449ed007
3 changed files with 6 additions and 1 deletions
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2
drivers/pci/bus.c
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@@ -158,6 +158,8 @@ pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
return ret;
}
void __weak pcibios_resource_survey_bus(struct pci_bus *bus) { }
/**
* pci_bus_add_device - add a single device
* @dev: device to add