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path: root/drivers/pci/hotplug/pciehp_core.c
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Diffstat (limited to 'drivers/pci/hotplug/pciehp_core.c')
-rw-r--r--drivers/pci/hotplug/pciehp_core.c112
1 files changed, 1 insertions, 111 deletions
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index fb254b2454de..2317557fdee6 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -73,7 +73,6 @@ static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *val
static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value);
static struct hotplug_slot_ops pciehp_hotplug_slot_ops = {
- .owner = THIS_MODULE,
.set_attention_status = set_attention_status,
.enable_slot = enable_slot,
.disable_slot = disable_slot,
@@ -85,99 +84,6 @@ static struct hotplug_slot_ops pciehp_hotplug_slot_ops = {
.get_cur_bus_speed = get_cur_bus_speed,
};
-/*
- * Check the status of the Electro Mechanical Interlock (EMI)
- */
-static int get_lock_status(struct hotplug_slot *hotplug_slot, u8 *value)
-{
- struct slot *slot = hotplug_slot->private;
- return (slot->hpc_ops->get_emi_status(slot, value));
-}
-
-/*
- * sysfs interface for the Electro Mechanical Interlock (EMI)
- * 1 == locked, 0 == unlocked
- */
-static ssize_t lock_read_file(struct hotplug_slot *slot, char *buf)
-{
- int retval;
- u8 value;
-
- retval = get_lock_status(slot, &value);
- if (retval)
- goto lock_read_exit;
- retval = sprintf (buf, "%d\n", value);
-
-lock_read_exit:
- return retval;
-}
-
-/*
- * Change the status of the Electro Mechanical Interlock (EMI)
- * This is a toggle - in addition there must be at least 1 second
- * in between toggles.
- */
-static int set_lock_status(struct hotplug_slot *hotplug_slot, u8 status)
-{
- struct slot *slot = hotplug_slot->private;
- int retval;
- u8 value;
-
- mutex_lock(&slot->ctrl->crit_sect);
-
- /* has it been >1 sec since our last toggle? */
- if ((get_seconds() - slot->last_emi_toggle) < 1) {
- mutex_unlock(&slot->ctrl->crit_sect);
- return -EINVAL;
- }
-
- /* see what our current state is */
- retval = get_lock_status(hotplug_slot, &value);
- if (retval || (value == status))
- goto set_lock_exit;
-
- slot->hpc_ops->toggle_emi(slot);
-set_lock_exit:
- mutex_unlock(&slot->ctrl->crit_sect);
- return 0;
-}
-
-/*
- * sysfs interface which allows the user to toggle the Electro Mechanical
- * Interlock. Valid values are either 0 or 1. 0 == unlock, 1 == lock
- */
-static ssize_t lock_write_file(struct hotplug_slot *hotplug_slot,
- const char *buf, size_t count)
-{
- struct slot *slot = hotplug_slot->private;
- unsigned long llock;
- u8 lock;
- int retval = 0;
-
- llock = simple_strtoul(buf, NULL, 10);
- lock = (u8)(llock & 0xff);
-
- switch (lock) {
- case 0:
- case 1:
- retval = set_lock_status(hotplug_slot, lock);
- break;
- default:
- ctrl_err(slot->ctrl, "%d is an invalid lock value\n",
- lock);
- retval = -EINVAL;
- }
- if (retval)
- return retval;
- return count;
-}
-
-static struct hotplug_slot_attribute hotplug_slot_attr_lock = {
- .attr = {.name = "lock", .mode = S_IFREG | S_IRUGO | S_IWUSR},
- .show = lock_read_file,
- .store = lock_write_file
-};
-
/**
* release_slot - free up the memory used by a slot
* @hotplug_slot: slot to free
@@ -236,17 +142,6 @@ static int init_slots(struct controller *ctrl)
get_attention_status(hotplug_slot, &info->attention_status);
get_latch_status(hotplug_slot, &info->latch_status);
get_adapter_status(hotplug_slot, &info->adapter_status);
- /* create additional sysfs entries */
- if (EMI(ctrl)) {
- retval = sysfs_create_file(&hotplug_slot->pci_slot->kobj,
- &hotplug_slot_attr_lock.attr);
- if (retval) {
- pci_hp_deregister(hotplug_slot);
- ctrl_err(ctrl, "Cannot create additional sysfs "
- "entries\n");
- goto error_info;
- }
- }
}
return 0;
@@ -261,13 +156,8 @@ error:
static void cleanup_slots(struct controller *ctrl)
{
struct slot *slot;
-
- list_for_each_entry(slot, &ctrl->slot_list, slot_list) {
- if (EMI(ctrl))
- sysfs_remove_file(&slot->hotplug_slot->pci_slot->kobj,
- &hotplug_slot_attr_lock.attr);
+ list_for_each_entry(slot, &ctrl->slot_list, slot_list)
pci_hp_deregister(slot->hotplug_slot);
- }
}
/*