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authorZhang Rui <rui.zhang@intel.com>2010-07-15 10:46:38 +0800
committerLen Brown <len.brown@intel.com>2010-08-15 00:28:26 -0400
commit06af7eb043c02822072cea862fce1b7c74115e8f (patch)
tree43af890ec5c9f6843cd12cc11e5b38f89f05b98e /drivers/acpi
parent47f5c892b06797336a34f1096b4b617623aa1960 (diff)
ACPI power_resource: remove unused procfs I/F
Remove unused ACPI power procfs I/F. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/power.c128
1 files changed, 1 insertions, 127 deletions
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index f74d3b31e5c..4fe5018fd6a 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -40,8 +40,6 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/slab.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include "sleep.h"
@@ -64,7 +62,6 @@ module_param_named(power_nocheck, acpi_power_nocheck, bool, 000);
static int acpi_power_add(struct acpi_device *device);
static int acpi_power_remove(struct acpi_device *device, int type);
static int acpi_power_resume(struct acpi_device *device);
-static int acpi_power_open_fs(struct inode *inode, struct file *file);
static const struct acpi_device_id power_device_ids[] = {
{ACPI_POWER_HID, 0},
@@ -99,14 +96,6 @@ struct acpi_power_resource {
static struct list_head acpi_power_resource_list;
-static const struct file_operations acpi_power_fops = {
- .owner = THIS_MODULE,
- .open = acpi_power_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
/* --------------------------------------------------------------------------
Power Resource Management
-------------------------------------------------------------------------- */
@@ -542,102 +531,6 @@ int acpi_power_transition(struct acpi_device *device, int state)
}
/* --------------------------------------------------------------------------
- FS Interface (/proc)
- -------------------------------------------------------------------------- */
-
-static struct proc_dir_entry *acpi_power_dir;
-
-static int acpi_power_seq_show(struct seq_file *seq, void *offset)
-{
- int count = 0;
- int result = 0, state;
- struct acpi_power_resource *resource = NULL;
- struct list_head *node, *next;
- struct acpi_power_reference *ref;
-
-
- resource = seq->private;
-
- if (!resource)
- goto end;
-
- result = acpi_power_get_state(resource->device->handle, &state);
- if (result)
- goto end;
-
- seq_puts(seq, "state: ");
- switch (state) {
- case ACPI_POWER_RESOURCE_STATE_ON:
- seq_puts(seq, "on\n");
- break;
- case ACPI_POWER_RESOURCE_STATE_OFF:
- seq_puts(seq, "off\n");
- break;
- default:
- seq_puts(seq, "unknown\n");
- break;
- }
-
- mutex_lock(&resource->resource_lock);
- list_for_each_safe(node, next, &resource->reference) {
- ref = container_of(node, struct acpi_power_reference, node);
- count++;
- }
- mutex_unlock(&resource->resource_lock);
-
- seq_printf(seq, "system level: S%d\n"
- "order: %d\n"
- "reference count: %d\n",
- resource->system_level,
- resource->order, count);
-
- end:
- return 0;
-}
-
-static int acpi_power_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_power_seq_show, PDE(inode)->data);
-}
-
-static int acpi_power_add_fs(struct acpi_device *device)
-{
- struct proc_dir_entry *entry = NULL;
-
-
- if (!device)
- return -EINVAL;
-
- if (!acpi_device_dir(device)) {
- acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
- acpi_power_dir);
- if (!acpi_device_dir(device))
- return -ENODEV;
- }
-
- /* 'status' [R] */
- entry = proc_create_data(ACPI_POWER_FILE_STATUS,
- S_IRUGO, acpi_device_dir(device),
- &acpi_power_fops, acpi_driver_data(device));
- if (!entry)
- return -EIO;
- return 0;
-}
-
-static int acpi_power_remove_fs(struct acpi_device *device)
-{
-
- if (acpi_device_dir(device)) {
- remove_proc_entry(ACPI_POWER_FILE_STATUS,
- acpi_device_dir(device));
- remove_proc_entry(acpi_device_bid(device), acpi_power_dir);
- acpi_device_dir(device) = NULL;
- }
-
- return 0;
-}
-
-/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
@@ -690,10 +583,6 @@ static int acpi_power_add(struct acpi_device *device)
break;
}
- result = acpi_power_add_fs(device);
- if (result)
- goto end;
-
printk(KERN_INFO PREFIX "%s [%s] (%s)\n", acpi_device_name(device),
acpi_device_bid(device), state ? "on" : "off");
@@ -715,8 +604,6 @@ static int acpi_power_remove(struct acpi_device *device, int type)
resource = acpi_driver_data(device);
- acpi_power_remove_fs(device);
-
mutex_lock(&resource->resource_lock);
list_for_each_safe(node, next, &resource->reference) {
struct acpi_power_reference *ref = container_of(node, struct acpi_power_reference, node);
@@ -760,19 +647,6 @@ static int acpi_power_resume(struct acpi_device *device)
int __init acpi_power_init(void)
{
- int result = 0;
-
INIT_LIST_HEAD(&acpi_power_resource_list);
-
- acpi_power_dir = proc_mkdir(ACPI_POWER_CLASS, acpi_root_dir);
- if (!acpi_power_dir)
- return -ENODEV;
-
- result = acpi_bus_register_driver(&acpi_power_driver);
- if (result < 0) {
- remove_proc_entry(ACPI_POWER_CLASS, acpi_root_dir);
- return -ENODEV;
- }
-
- return 0;
+ return acpi_bus_register_driver(&acpi_power_driver);
}