diff options
Diffstat (limited to 'drivers/pci/slot.c')
| -rw-r--r-- | drivers/pci/slot.c | 92 |
1 files changed, 11 insertions, 81 deletions
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c index e0189cf7c55..396c200b9dd 100644 --- a/drivers/pci/slot.c +++ b/drivers/pci/slot.c @@ -7,6 +7,7 @@ #include <linux/kobject.h> #include <linux/slab.h> +#include <linux/module.h> #include <linux/pci.h> #include <linux/err.h> #include "pci.h" @@ -49,10 +50,10 @@ static ssize_t address_read_file(struct pci_slot *slot, char *buf) } /* these strings match up with the values in pci_bus_speed */ -static char *pci_bus_speed_strings[] = { +static const char *pci_bus_speed_strings[] = { "33 MHz PCI", /* 0x00 */ "66 MHz PCI", /* 0x01 */ - "66 MHz PCI-X", /* 0x02 */ + "66 MHz PCI-X", /* 0x02 */ "100 MHz PCI-X", /* 0x03 */ "133 MHz PCI-X", /* 0x04 */ NULL, /* 0x05 */ @@ -97,50 +98,6 @@ static ssize_t cur_speed_read_file(struct pci_slot *slot, char *buf) return bus_speed_read(slot->bus->cur_bus_speed, buf); } -static void remove_sysfs_files(struct pci_slot *slot) -{ - char func[10]; - struct list_head *tmp; - - list_for_each(tmp, &slot->bus->devices) { - struct pci_dev *dev = pci_dev_b(tmp); - if (PCI_SLOT(dev->devfn) != slot->number) - continue; - sysfs_remove_link(&dev->dev.kobj, "slot"); - - snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn)); - sysfs_remove_link(&slot->kobj, func); - } -} - -static int create_sysfs_files(struct pci_slot *slot) -{ - int result; - char func[10]; - struct list_head *tmp; - - list_for_each(tmp, &slot->bus->devices) { - struct pci_dev *dev = pci_dev_b(tmp); - if (PCI_SLOT(dev->devfn) != slot->number) - continue; - - result = sysfs_create_link(&dev->dev.kobj, &slot->kobj, "slot"); - if (result) - goto fail; - - snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn)); - result = sysfs_create_link(&slot->kobj, &dev->dev.kobj, func); - if (result) - goto fail; - } - - return 0; - -fail: - remove_sysfs_files(slot); - return result; -} - static void pci_slot_release(struct kobject *kobj) { struct pci_dev *dev; @@ -153,19 +110,17 @@ static void pci_slot_release(struct kobject *kobj) if (PCI_SLOT(dev->devfn) == slot->number) dev->slot = NULL; - remove_sysfs_files(slot); - list_del(&slot->list); kfree(slot); } static struct pci_slot_attribute pci_slot_attr_address = - __ATTR(address, (S_IFREG | S_IRUGO), address_read_file, NULL); + __ATTR(address, S_IRUGO, address_read_file, NULL); static struct pci_slot_attribute pci_slot_attr_max_speed = - __ATTR(max_bus_speed, (S_IFREG | S_IRUGO), max_speed_read_file, NULL); + __ATTR(max_bus_speed, S_IRUGO, max_speed_read_file, NULL); static struct pci_slot_attribute pci_slot_attr_cur_speed = - __ATTR(cur_bus_speed, (S_IFREG | S_IRUGO), cur_speed_read_file, NULL); + __ATTR(cur_bus_speed, S_IRUGO, cur_speed_read_file, NULL); static struct attribute *pci_slot_default_attrs[] = { &pci_slot_attr_address.attr, @@ -346,8 +301,6 @@ placeholder: INIT_LIST_HEAD(&slot->list); list_add(&slot->list, &parent->slots); - create_sysfs_files(slot); - list_for_each_entry(dev, &parent->devices, bus_list) if (PCI_SLOT(dev->devfn) == slot_nr) dev->slot = slot; @@ -367,32 +320,6 @@ err: EXPORT_SYMBOL_GPL(pci_create_slot); /** - * pci_renumber_slot - update %struct pci_slot -> number - * @slot: &struct pci_slot to update - * @slot_nr: new number for slot - * - * The primary purpose of this interface is to allow callers who earlier - * created a placeholder slot in pci_create_slot() by passing a -1 as - * slot_nr, to update their %struct pci_slot with the correct @slot_nr. - */ -void pci_renumber_slot(struct pci_slot *slot, int slot_nr) -{ - struct pci_slot *tmp; - - down_write(&pci_bus_sem); - - list_for_each_entry(tmp, &slot->bus->slots, list) { - WARN_ON(tmp->number == slot_nr); - goto out; - } - - slot->number = slot_nr; -out: - up_write(&pci_bus_sem); -} -EXPORT_SYMBOL_GPL(pci_renumber_slot); - -/** * pci_destroy_slot - decrement refcount for physical PCI slot * @slot: struct pci_slot to decrement * @@ -424,14 +351,17 @@ void pci_hp_create_module_link(struct pci_slot *pci_slot) { struct hotplug_slot *slot = pci_slot->hotplug; struct kobject *kobj = NULL; - int no_warn; + int ret; if (!slot || !slot->ops) return; kobj = kset_find_obj(module_kset, slot->ops->mod_name); if (!kobj) return; - no_warn = sysfs_create_link(&pci_slot->kobj, kobj, "module"); + ret = sysfs_create_link(&pci_slot->kobj, kobj, "module"); + if (ret) + dev_err(&pci_slot->bus->dev, "Error creating sysfs link (%d)\n", + ret); kobject_put(kobj); } EXPORT_SYMBOL_GPL(pci_hp_create_module_link); |