This patch splits a new function from pci_bus_add_devices(). The new function can be used to register PCI bus to the device core. Signed-off-by: Yu Zhao <yu.zhao@xxxxxxxxx> --- drivers/pci/bus.c | 49 ++++++++++++++++++++++++++++++------------------- drivers/pci/pci.h | 1 + 2 files changed, 31 insertions(+), 19 deletions(-) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 9d800cb..65f5a6f 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -91,6 +91,34 @@ int pci_bus_add_device(struct pci_dev *dev) } /** + * pci_bus_add_child - add a child bus + * @bus: bus to add + * + * This adds sysfs entries for a single bus + */ +int pci_bus_add_child(struct pci_bus *bus) +{ + int retval; + + if (bus->bridge) + bus->dev.parent = bus->bridge; + + retval = device_register(&bus->dev); + if (retval) + return retval; + + bus->is_added = 1; + + retval = device_create_file(&bus->dev, &dev_attr_cpuaffinity); + if (retval) + return retval; + + retval = device_create_file(&bus->dev, &dev_attr_cpulistaffinity); + + return retval; +} + +/** * pci_bus_add_devices - insert newly discovered PCI devices * @bus: bus to check for new devices * @@ -140,26 +168,9 @@ void pci_bus_add_devices(struct pci_bus *bus) */ if (child->is_added) continue; - child->dev.parent = child->bridge; - retval = device_register(&child->dev); + retval = pci_bus_add_child(child); if (retval) - dev_err(&dev->dev, "Error registering pci_bus," - " continuing...\n"); - else { - child->is_added = 1; - retval = device_create_file(&child->dev, - &dev_attr_cpuaffinity); - if (retval) - dev_err(&dev->dev, "Error creating cpuaffinity" - " file, continuing...\n"); - - retval = device_create_file(&child->dev, - &dev_attr_cpulistaffinity); - if (retval) - dev_err(&dev->dev, - "Error creating cpulistaffinity" - " file, continuing...\n"); - } + dev_err(&dev->dev, "Error adding bus, continuing\n"); } } diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 3de70d7..315bbe6 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -170,6 +170,7 @@ extern int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, struct resource *res, unsigned int reg); extern int pci_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type); +extern int pci_bus_add_child(struct pci_bus *bus); extern void pci_enable_ari(struct pci_dev *dev); /** * pci_ari_enabled - query ARI forwarding status -- 1.5.6.4 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html