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The pci_scan_root_bus_bridge() function allows passing a parameterized struct pci_host_bridge and scanning the resulting PCI bus; since the struct msi_controller is part of the struct pci_host_bridge and the struct pci_host_bridge can now be passed to pci_scan_root_bus_bridge() explicitly, there is no need for a scan interface with a MSI controller parameter. With all PCI host controller drivers and platform code relying on pci_scan_root_bus_msi() converted over to pci_scan_root_bus_bridge() the pci_scan_root_bus_msi() becomes obsolete and can be removed. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>