From 876e501ab25dcd683574a5d3d56d8fe450083ed6 Mon Sep 17 00:00:00 2001 From: Yu Zhao Date: Sat, 22 Nov 2008 02:42:35 +0800 Subject: [PATCH] PCI: factor pci_bus_add_child() from pci_bus_add_devices() This patch splits a new function, pci_bus_add_child(), from pci_bus_add_devices(). The new function can be used to register PCI buses to the device core. Signed-off-by: Yu Zhao Signed-off-by: Jesse Barnes --- drivers/pci/bus.c | 56 ++++++++++++++++++++++++++++------------------- drivers/pci/pci.h | 1 + 2 files changed, 34 insertions(+), 23 deletions(-) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 1b6de1b565aa..52b54f053be0 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -90,6 +90,37 @@ int pci_bus_add_device(struct pci_dev *dev) return 0; } +/** + * 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); + + /* Create legacy_io and legacy_mem files for this bus */ + pci_create_legacy_files(bus); + + return retval; +} + /** * pci_bus_add_devices - insert newly discovered PCI devices * @bus: bus to check for new devices @@ -140,30 +171,9 @@ 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"); - - /* Create legacy_io and legacy_mem files for this bus */ - pci_create_legacy_files(child_bus); - - } + dev_err(&dev->dev, "Error adding bus, continuing\n"); } } diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index c4f4a1e6ea28..d1e92d83aa06 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -173,6 +173,7 @@ 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 -- 2.30.2