PCI: Add pcibios_bus_add_device() weak function

This adds weak function pcibios_bus_add_device() for arch dependent
code could do proper setup. For example, powerpc could setup EEH
related resources for SRIOV VFs.

Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Reviewed-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 89b3bef..6469ff6 100644 (file)
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -271,6 +271,8 @@ bool pci_bus_clip_resource(struct pci_dev *dev, int idx)
 
 void __weak pcibios_resource_survey_bus(struct pci_bus *bus) { }
 
+void __weak pcibios_bus_add_device(struct pci_dev *pdev) { }
+
 /**
  * pci_bus_add_device - start driver for a single device
  * @dev: device to add
@@ -285,6 +287,7 @@ void pci_bus_add_device(struct pci_dev *dev)
         * Can not put in pci_device_add yet because resources
         * are not assigned yet for some devices.
         */
+       pcibios_bus_add_device(dev);
        pci_fixup_device(pci_fixup_final, dev);
        pci_create_sysfs_dev_files(dev);
        pci_proc_attach_device(dev);

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 3db5e30..bc435d6 100644 (file)
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -770,6 +770,7 @@ extern struct list_head pci_root_buses;     /* list of all known PCI buses */
 int no_pci_devices(void);
 
 void pcibios_resource_survey_bus(struct pci_bus *bus);
+void pcibios_bus_add_device(struct pci_dev *pdev);
 void pcibios_add_bus(struct pci_bus *bus);
 void pcibios_remove_bus(struct pci_bus *bus);
 void pcibios_fixup_bus(struct pci_bus *);