diff options
| -rw-r--r-- | Documentation/feature-removal-schedule.txt | 32 | ||||
| -rw-r--r-- | drivers/pci/hotplug/Kconfig | 24 | ||||
| -rw-r--r-- | drivers/pci/hotplug/Makefile | 3 | ||||
| -rw-r--r-- | drivers/pci/hotplug/fakephp.c | 164 |
4 files changed, 1 insertions, 222 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index afaff312bf41..529e8323ca82 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -253,38 +253,6 @@ Who: Dave Jones <davej@redhat.com>, Matthew Garrett <mjg@redhat.com> ----------------------------- -What: fakephp and associated sysfs files in /sys/bus/pci/slots/ -When: 2011 -Why: In 2.6.27, the semantics of /sys/bus/pci/slots was redefined to - represent a machine's physical PCI slots. The change in semantics - had userspace implications, as the hotplug core no longer allowed - drivers to create multiple sysfs files per physical slot (required - for multi-function devices, e.g.). fakephp was seen as a developer's - tool only, and its interface changed. Too late, we learned that - there were some users of the fakephp interface. - - In 2.6.30, the original fakephp interface was restored. At the same - time, the PCI core gained the ability that fakephp provided, namely - function-level hot-remove and hot-add. - - Since the PCI core now provides the same functionality, exposed in: - - /sys/bus/pci/rescan - /sys/bus/pci/devices/.../remove - /sys/bus/pci/devices/.../rescan - - there is no functional reason to maintain fakephp as well. - - We will keep the existing module so that 'modprobe fakephp' will - present the old /sys/bus/pci/slots/... interface for compatibility, - but users are urged to migrate their applications to the API above. - - After a reasonable transition period, we will remove the legacy - fakephp interface. -Who: Alex Chiang <achiang@hp.com> - ---------------------------- - What: CONFIG_RFKILL_INPUT When: 2.6.33 Why: Should be implemented in userspace, policy daemon. diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index 66f29bc00be4..b0e46dede1a9 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -17,28 +17,6 @@ menuconfig HOTPLUG_PCI if HOTPLUG_PCI -config HOTPLUG_PCI_FAKE - tristate "Fake PCI Hotplug driver" - help - Say Y here if you want to use the fake PCI hotplug driver. It can - be used to simulate PCI hotplug events if even if your system is - not PCI hotplug capable. - - This driver will "emulate" removing PCI devices from the system. - If the "power" file is written to with "0" then the specified PCI - device will be completely removed from the kernel. - - WARNING, this does NOT turn off the power to the PCI device. - This is a "logical" removal, not a physical or electrical - removal. - - Use this module at your own risk. You have been warned! - - To compile this driver as a module, choose M here: the - module will be called fakephp. - - When in doubt, say N. - config HOTPLUG_PCI_COMPAQ tristate "Compaq PCI Hotplug driver" depends on X86 && PCI_BIOS @@ -143,7 +121,7 @@ config HOTPLUG_PCI_SHPC config HOTPLUG_PCI_RPA tristate "RPA PCI Hotplug driver" - depends on PPC_PSERIES && EEH && !HOTPLUG_PCI_FAKE + depends on PPC_PSERIES && EEH help Say Y here if you have a RPA system that supports PCI Hotplug. diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile index 6cd9f3c9887d..c459cd4e39c2 100644 --- a/drivers/pci/hotplug/Makefile +++ b/drivers/pci/hotplug/Makefile @@ -23,9 +23,6 @@ obj-$(CONFIG_HOTPLUG_PCI_ACPI) += acpiphp.o obj-$(CONFIG_HOTPLUG_PCI_ACPI_IBM) += acpiphp_ibm.o -# Link this last so it doesn't claim devices that have a real hotplug driver -obj-$(CONFIG_HOTPLUG_PCI_FAKE) += fakephp.o - pci_hotplug-objs := pci_hotplug_core.o pcihp_slot.o ifdef CONFIG_HOTPLUG_PCI_CPCI diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c deleted file mode 100644 index a019c9a712be..000000000000 --- a/drivers/pci/hotplug/fakephp.c +++ /dev/null @@ -1,164 +0,0 @@ -/* Works like the fakephp driver used to, except a little better. - * - * - It's possible to remove devices with subordinate busses. - * - New PCI devices that appear via any method, not just a fakephp triggered - * rescan, will be noticed. - * - Devices that are removed via any method, not just a fakephp triggered - * removal, will also be noticed. - * - * Uses nothing from the pci-hotplug subsystem. - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/list.h> -#include <linux/kobject.h> -#include <linux/sysfs.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/device.h> -#include <linux/slab.h> -#include "../pci.h" - -struct legacy_slot { - struct kobject kobj; - struct pci_dev *dev; - struct list_head list; -}; - -static LIST_HEAD(legacy_list); - -static ssize_t legacy_show(struct kobject *kobj, struct attribute *attr, - char *buf) -{ - struct legacy_slot *slot = container_of(kobj, typeof(*slot), kobj); - strcpy(buf, "1\n"); - return 2; -} - -static void remove_callback(void *data) -{ - pci_stop_and_remove_bus_device((struct pci_dev *)data); -} - -static ssize_t legacy_store(struct kobject *kobj, struct attribute *attr, - const char *buf, size_t len) -{ - struct legacy_slot *slot = container_of(kobj, typeof(*slot), kobj); - unsigned long val; - - if (strict_strtoul(buf, 0, &val) < 0) - return -EINVAL; - - if (val) - pci_rescan_bus(slot->dev->bus); - else - sysfs_schedule_callback(&slot->dev->dev.kobj, remove_callback, - slot->dev, THIS_MODULE); - return len; -} - -static struct attribute *legacy_attrs[] = { - &(struct attribute){ .name = "power", .mode = 0644 }, - NULL, -}; - -static void legacy_release(struct kobject *kobj) -{ - struct legacy_slot *slot = container_of(kobj, typeof(*slot), kobj); - - pci_dev_put(slot->dev); - kfree(slot); -} - -static struct kobj_type legacy_ktype = { - .sysfs_ops = &(const struct sysfs_ops){ - .store = legacy_store, .show = legacy_show - }, - .release = &legacy_release, - .default_attrs = legacy_attrs, -}; - -static int legacy_add_slot(struct pci_dev *pdev) -{ - struct legacy_slot *slot = kzalloc(sizeof(*slot), GFP_KERNEL); - - if (!slot) - return -ENOMEM; - - if (kobject_init_and_add(&slot->kobj, &legacy_ktype, - &pci_slots_kset->kobj, "%s", - dev_name(&pdev->dev))) { - dev_warn(&pdev->dev, "Failed to created legacy fake slot\n"); - return -EINVAL; - } - slot->dev = pci_dev_get(pdev); - - list_add(&slot->list, &legacy_list); - - return 0; -} - -static int legacy_notify(struct notifier_block *nb, - unsigned long action, void *data) -{ - struct pci_dev *pdev = to_pci_dev(data); - - if (action == BUS_NOTIFY_ADD_DEVICE) { - legacy_add_slot(pdev); - } else if (action == BUS_NOTIFY_DEL_DEVICE) { - struct legacy_slot *slot; - - list_for_each_entry(slot, &legacy_list, list) - if (slot->dev == pdev) - goto found; - - dev_warn(&pdev->dev, "Missing legacy fake slot?"); - return -ENODEV; -found: - kobject_del(&slot->kobj); - list_del(&slot->list); - kobject_put(&slot->kobj); - } - - return 0; -} - -static struct notifier_block legacy_notifier = { - .notifier_call = legacy_notify -}; - -static int __init init_legacy(void) -{ - struct pci_dev *pdev = NULL; - - /* Add existing devices */ - for_each_pci_dev(pdev) - legacy_add_slot(pdev); - - /* Be alerted of any new ones */ - bus_register_notifier(&pci_bus_type, &legacy_notifier); - return 0; -} -module_init(init_legacy); - -static void __exit remove_legacy(void) -{ - struct legacy_slot *slot, *tmp; - - bus_unregister_notifier(&pci_bus_type, &legacy_notifier); - - list_for_each_entry_safe(slot, tmp, &legacy_list, list) { - list_del(&slot->list); - kobject_del(&slot->kobj); - kobject_put(&slot->kobj); - } -} -module_exit(remove_legacy); - - -MODULE_AUTHOR("Trent Piepho <xyzzy@speakeasy.org>"); -MODULE_DESCRIPTION("Legacy version of the fakephp interface"); -MODULE_LICENSE("GPL"); |