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Message-Id: <1381456451-22877-1-git-send-email-tianyu.lan@intel.com>
Date: Fri, 11 Oct 2013 09:54:07 +0800
From: tianyu.lan@...el.com
To: lenb@...nel.org, rjw@...k.pl
Cc: Lan Tianyu <tianyu.lan@...el.com>, linux-acpi@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/5] ACPI/AC: Remove AC's proc directory.
From: Lan Tianyu <tianyu.lan@...el.com>
AC's proc directory is not used and so remove it. Prepare for removing
/proc/acpi directory.
Signed-off-by: Lan Tianyu <tianyu.lan@...el.com>
---
drivers/acpi/ac.c | 128 +-----------------------------------------------------
1 file changed, 2 insertions(+), 126 deletions(-)
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index f37beaa3..7d28e1a 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -30,10 +30,6 @@
#include <linux/types.h>
#include <linux/dmi.h>
#include <linux/delay.h>
-#ifdef CONFIG_ACPI_PROCFS_POWER
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#endif
#include <linux/power_supply.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
@@ -55,12 +51,6 @@ MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_DESCRIPTION("ACPI AC Adapter Driver");
MODULE_LICENSE("GPL");
-#ifdef CONFIG_ACPI_PROCFS_POWER
-extern struct proc_dir_entry *acpi_lock_ac_dir(void);
-extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
-static int acpi_ac_open_fs(struct inode *inode, struct file *file);
-#endif
-
static int acpi_ac_add(struct acpi_device *device);
static int acpi_ac_remove(struct acpi_device *device);
static void acpi_ac_notify(struct acpi_device *device, u32 event);
@@ -99,16 +89,6 @@ struct acpi_ac {
#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger)
-#ifdef CONFIG_ACPI_PROCFS_POWER
-static const struct file_operations acpi_ac_fops = {
- .owner = THIS_MODULE,
- .open = acpi_ac_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-#endif
-
/* --------------------------------------------------------------------------
AC Adapter Management
-------------------------------------------------------------------------- */
@@ -160,83 +140,6 @@ static enum power_supply_property ac_props[] = {
POWER_SUPPLY_PROP_ONLINE,
};
-#ifdef CONFIG_ACPI_PROCFS_POWER
-/* --------------------------------------------------------------------------
- FS Interface (/proc)
- -------------------------------------------------------------------------- */
-
-static struct proc_dir_entry *acpi_ac_dir;
-
-static int acpi_ac_seq_show(struct seq_file *seq, void *offset)
-{
- struct acpi_ac *ac = seq->private;
-
-
- if (!ac)
- return 0;
-
- if (acpi_ac_get_state(ac)) {
- seq_puts(seq, "ERROR: Unable to read AC Adapter state\n");
- return 0;
- }
-
- seq_puts(seq, "state: ");
- switch (ac->state) {
- case ACPI_AC_STATUS_OFFLINE:
- seq_puts(seq, "off-line\n");
- break;
- case ACPI_AC_STATUS_ONLINE:
- seq_puts(seq, "on-line\n");
- break;
- default:
- seq_puts(seq, "unknown\n");
- break;
- }
-
- return 0;
-}
-
-static int acpi_ac_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_ac_seq_show, PDE_DATA(inode));
-}
-
-static int acpi_ac_add_fs(struct acpi_device *device)
-{
- struct proc_dir_entry *entry = NULL;
-
- printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded,"
- " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
- if (!acpi_device_dir(device)) {
- acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
- acpi_ac_dir);
- if (!acpi_device_dir(device))
- return -ENODEV;
- }
-
- /* 'state' [R] */
- entry = proc_create_data(ACPI_AC_FILE_STATE,
- S_IRUGO, acpi_device_dir(device),
- &acpi_ac_fops, acpi_driver_data(device));
- if (!entry)
- return -ENODEV;
- return 0;
-}
-
-static int acpi_ac_remove_fs(struct acpi_device *device)
-{
-
- if (acpi_device_dir(device)) {
- remove_proc_entry(ACPI_AC_FILE_STATE, acpi_device_dir(device));
-
- remove_proc_entry(acpi_device_bid(device), acpi_ac_dir);
- acpi_device_dir(device) = NULL;
- }
-
- return 0;
-}
-#endif
-
/* --------------------------------------------------------------------------
Driver Model
-------------------------------------------------------------------------- */
@@ -317,11 +220,6 @@ static int acpi_ac_add(struct acpi_device *device)
if (result)
goto end;
-#ifdef CONFIG_ACPI_PROCFS_POWER
- result = acpi_ac_add_fs(device);
-#endif
- if (result)
- goto end;
ac->charger.name = acpi_device_bid(device);
ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
ac->charger.properties = ac_props;
@@ -336,12 +234,8 @@ static int acpi_ac_add(struct acpi_device *device)
ac->state ? "on-line" : "off-line");
end:
- if (result) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_ac_remove_fs(device);
-#endif
+ if (result)
kfree(ac);
- }
dmi_check_system(ac_dmi_table);
return result;
@@ -381,9 +275,6 @@ static int acpi_ac_remove(struct acpi_device *device)
if (ac->charger.dev)
power_supply_unregister(&ac->charger);
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_ac_remove_fs(device);
-#endif
kfree(ac);
@@ -397,19 +288,9 @@ static int __init acpi_ac_init(void)
if (acpi_disabled)
return -ENODEV;
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_ac_dir = acpi_lock_ac_dir();
- if (!acpi_ac_dir)
- return -ENODEV;
-#endif
-
result = acpi_bus_register_driver(&acpi_ac_driver);
- if (result < 0) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_unlock_ac_dir(acpi_ac_dir);
-#endif
+ if (result < 0)
return -ENODEV;
- }
return 0;
}
@@ -418,11 +299,6 @@ static void __exit acpi_ac_exit(void)
{
acpi_bus_unregister_driver(&acpi_ac_driver);
-
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_unlock_ac_dir(acpi_ac_dir);
-#endif
-
return;
}
--
1.8.2.1
--
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