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ACPI: procfs: Remove last dirs after being marked deprecated for a decade
This code is outdated and has been deprecated for a long time, so user space is not expected to rely on it any more on any systems that are up to date by any reasonable measure. Remove it. Signed-off-by: Thomas Renninger <trenn@suse.de> [ rjw: Subject / changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Thomas Renninger
Rafael J. Wysocki
parent
48778464bb
commit
8830280a69
@ -99,23 +99,6 @@ config ACPI_SLEEP
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depends on ACPI_SYSTEM_POWER_STATES_SUPPORT
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default y
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config ACPI_PROCFS_POWER
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bool "Deprecated power /proc/acpi directories"
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depends on X86 && PROC_FS
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help
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For backwards compatibility, this option allows
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deprecated power /proc/acpi/ directories to exist, even when
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they have been replaced by functions in /sys.
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The deprecated directories (and their replacements) include:
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/proc/acpi/battery/* (/sys/class/power_supply/*) and
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/proc/acpi/ac_adapter/* (sys/class/power_supply/*).
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This option has no effect on /proc/acpi/ directories
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and functions which do not yet exist in /sys.
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This option, together with the proc directories, will be
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deleted in the future.
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Say N to delete power /proc/acpi/ directories that have moved to /sys.
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config ACPI_REV_OVERRIDE_POSSIBLE
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bool "Allow supported ACPI revision to be overridden"
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depends on X86
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@ -55,7 +55,6 @@ acpi-$(CONFIG_X86) += acpi_cmos_rtc.o
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acpi-$(CONFIG_X86) += x86/apple.o
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acpi-$(CONFIG_X86) += x86/utils.o
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acpi-$(CONFIG_DEBUG_FS) += debugfs.o
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acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
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acpi-y += acpi_lpat.o
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acpi-$(CONFIG_ACPI_LPIT) += acpi_lpit.o
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acpi-$(CONFIG_ACPI_GENERIC_GSI) += irq.o
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@ -13,10 +13,6 @@
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#include <linux/types.h>
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#include <linux/dmi.h>
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#include <linux/delay.h>
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#ifdef CONFIG_ACPI_PROCFS_POWER
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#endif
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#include <linux/platform_device.h>
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#include <linux/power_supply.h>
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#include <linux/acpi.h>
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@ -66,12 +62,6 @@ static int acpi_ac_resume(struct device *dev);
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#endif
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static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
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#ifdef CONFIG_ACPI_PROCFS_POWER
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extern struct proc_dir_entry *acpi_lock_ac_dir(void);
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extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
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#endif
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static int ac_sleep_before_get_state_ms;
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static int ac_check_pmic = 1;
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@ -150,77 +140,6 @@ static enum power_supply_property ac_props[] = {
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POWER_SUPPLY_PROP_ONLINE,
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};
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#ifdef CONFIG_ACPI_PROCFS_POWER
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/* --------------------------------------------------------------------------
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FS Interface (/proc)
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-------------------------------------------------------------------------- */
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static struct proc_dir_entry *acpi_ac_dir;
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static int acpi_ac_seq_show(struct seq_file *seq, void *offset)
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{
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struct acpi_ac *ac = seq->private;
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if (!ac)
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return 0;
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if (acpi_ac_get_state(ac)) {
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seq_puts(seq, "ERROR: Unable to read AC Adapter state\n");
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return 0;
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}
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seq_puts(seq, "state: ");
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switch (ac->state) {
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case ACPI_AC_STATUS_OFFLINE:
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seq_puts(seq, "off-line\n");
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break;
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case ACPI_AC_STATUS_ONLINE:
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seq_puts(seq, "on-line\n");
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break;
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default:
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seq_puts(seq, "unknown\n");
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break;
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}
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return 0;
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}
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static int acpi_ac_add_fs(struct acpi_ac *ac)
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{
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struct proc_dir_entry *entry = NULL;
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printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded,"
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" please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
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if (!acpi_device_dir(ac->device)) {
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acpi_device_dir(ac->device) =
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proc_mkdir(acpi_device_bid(ac->device), acpi_ac_dir);
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if (!acpi_device_dir(ac->device))
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return -ENODEV;
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}
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/* 'state' [R] */
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entry = proc_create_single_data(ACPI_AC_FILE_STATE, S_IRUGO,
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acpi_device_dir(ac->device), acpi_ac_seq_show, ac);
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if (!entry)
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return -ENODEV;
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return 0;
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}
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static int acpi_ac_remove_fs(struct acpi_ac *ac)
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{
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if (acpi_device_dir(ac->device)) {
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remove_proc_entry(ACPI_AC_FILE_STATE,
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acpi_device_dir(ac->device));
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remove_proc_entry(acpi_device_bid(ac->device), acpi_ac_dir);
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acpi_device_dir(ac->device) = NULL;
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}
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return 0;
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}
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#endif
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/* --------------------------------------------------------------------------
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Driver Model
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-------------------------------------------------------------------------- */
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@ -348,11 +267,6 @@ static int acpi_ac_add(struct acpi_device *device)
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psy_cfg.drv_data = ac;
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ac->charger_desc.name = acpi_device_bid(device);
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#ifdef CONFIG_ACPI_PROCFS_POWER
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result = acpi_ac_add_fs(ac);
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if (result)
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goto end;
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#endif
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ac->charger_desc.type = POWER_SUPPLY_TYPE_MAINS;
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ac->charger_desc.properties = ac_props;
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ac->charger_desc.num_properties = ARRAY_SIZE(ac_props);
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@ -372,9 +286,6 @@ static int acpi_ac_add(struct acpi_device *device)
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register_acpi_notifier(&ac->battery_nb);
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end:
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if (result) {
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#ifdef CONFIG_ACPI_PROCFS_POWER
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acpi_ac_remove_fs(ac);
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#endif
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kfree(ac);
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}
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@ -418,10 +329,6 @@ static int acpi_ac_remove(struct acpi_device *device)
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power_supply_unregister(ac->charger);
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unregister_acpi_notifier(&ac->battery_nb);
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#ifdef CONFIG_ACPI_PROCFS_POWER
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acpi_ac_remove_fs(ac);
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#endif
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kfree(ac);
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return 0;
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@ -447,18 +354,8 @@ static int __init acpi_ac_init(void)
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}
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}
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#ifdef CONFIG_ACPI_PROCFS_POWER
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acpi_ac_dir = acpi_lock_ac_dir();
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if (!acpi_ac_dir)
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return -ENODEV;
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#endif
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result = acpi_bus_register_driver(&acpi_ac_driver);
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if (result < 0) {
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#ifdef CONFIG_ACPI_PROCFS_POWER
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acpi_unlock_ac_dir(acpi_ac_dir);
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#endif
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return -ENODEV;
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}
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@ -468,9 +365,6 @@ static int __init acpi_ac_init(void)
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static void __exit acpi_ac_exit(void)
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{
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acpi_bus_unregister_driver(&acpi_ac_driver);
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#ifdef CONFIG_ACPI_PROCFS_POWER
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acpi_unlock_ac_dir(acpi_ac_dir);
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#endif
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}
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module_init(acpi_ac_init);
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module_exit(acpi_ac_exit);
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@ -24,12 +24,6 @@
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#include <asm/unaligned.h>
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#ifdef CONFIG_ACPI_PROCFS_POWER
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/uaccess.h>
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#endif
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#include <linux/acpi.h>
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#include <linux/power_supply.h>
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@ -69,11 +63,6 @@ static unsigned int cache_time = 1000;
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module_param(cache_time, uint, 0644);
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MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
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#ifdef CONFIG_ACPI_PROCFS_POWER
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extern struct proc_dir_entry *acpi_lock_battery_dir(void);
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extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
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#endif
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static const struct acpi_device_id battery_device_ids[] = {
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{"PNP0C0A", 0},
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{"", 0},
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@ -1023,226 +1012,6 @@ static void acpi_battery_refresh(struct acpi_battery *battery)
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sysfs_add_battery(battery);
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}
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/* --------------------------------------------------------------------------
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FS Interface (/proc)
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-------------------------------------------------------------------------- */
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#ifdef CONFIG_ACPI_PROCFS_POWER
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static struct proc_dir_entry *acpi_battery_dir;
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static const char *acpi_battery_units(const struct acpi_battery *battery)
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{
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return (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) ?
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"mA" : "mW";
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}
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static int acpi_battery_info_proc_show(struct seq_file *seq, void *offset)
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{
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struct acpi_battery *battery = seq->private;
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int result = acpi_battery_update(battery, false);
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if (result)
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goto end;
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seq_printf(seq, "present: %s\n",
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acpi_battery_present(battery) ? "yes" : "no");
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if (!acpi_battery_present(battery))
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goto end;
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if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
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seq_printf(seq, "design capacity: unknown\n");
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else
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seq_printf(seq, "design capacity: %d %sh\n",
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battery->design_capacity,
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acpi_battery_units(battery));
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if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
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seq_printf(seq, "last full capacity: unknown\n");
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else
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seq_printf(seq, "last full capacity: %d %sh\n",
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battery->full_charge_capacity,
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acpi_battery_units(battery));
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seq_printf(seq, "battery technology: %srechargeable\n",
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battery->technology ? "" : "non-");
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if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
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seq_printf(seq, "design voltage: unknown\n");
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else
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seq_printf(seq, "design voltage: %d mV\n",
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battery->design_voltage);
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seq_printf(seq, "design capacity warning: %d %sh\n",
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battery->design_capacity_warning,
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acpi_battery_units(battery));
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seq_printf(seq, "design capacity low: %d %sh\n",
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battery->design_capacity_low,
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acpi_battery_units(battery));
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seq_printf(seq, "cycle count: %i\n", battery->cycle_count);
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seq_printf(seq, "capacity granularity 1: %d %sh\n",
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battery->capacity_granularity_1,
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acpi_battery_units(battery));
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seq_printf(seq, "capacity granularity 2: %d %sh\n",
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battery->capacity_granularity_2,
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acpi_battery_units(battery));
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seq_printf(seq, "model number: %s\n", battery->model_number);
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seq_printf(seq, "serial number: %s\n", battery->serial_number);
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seq_printf(seq, "battery type: %s\n", battery->type);
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seq_printf(seq, "OEM info: %s\n", battery->oem_info);
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end:
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if (result)
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seq_printf(seq, "ERROR: Unable to read battery info\n");
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return result;
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}
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static int acpi_battery_state_proc_show(struct seq_file *seq, void *offset)
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{
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struct acpi_battery *battery = seq->private;
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int result = acpi_battery_update(battery, false);
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if (result)
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goto end;
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seq_printf(seq, "present: %s\n",
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acpi_battery_present(battery) ? "yes" : "no");
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if (!acpi_battery_present(battery))
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goto end;
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seq_printf(seq, "capacity state: %s\n",
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(battery->state & 0x04) ? "critical" : "ok");
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if ((battery->state & 0x01) && (battery->state & 0x02))
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seq_printf(seq,
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"charging state: charging/discharging\n");
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else if (battery->state & 0x01)
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seq_printf(seq, "charging state: discharging\n");
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else if (battery->state & 0x02)
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seq_printf(seq, "charging state: charging\n");
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else
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seq_printf(seq, "charging state: charged\n");
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if (battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN)
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seq_printf(seq, "present rate: unknown\n");
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else
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seq_printf(seq, "present rate: %d %s\n",
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battery->rate_now, acpi_battery_units(battery));
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if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN)
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seq_printf(seq, "remaining capacity: unknown\n");
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else
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seq_printf(seq, "remaining capacity: %d %sh\n",
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battery->capacity_now, acpi_battery_units(battery));
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if (battery->voltage_now == ACPI_BATTERY_VALUE_UNKNOWN)
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seq_printf(seq, "present voltage: unknown\n");
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else
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seq_printf(seq, "present voltage: %d mV\n",
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battery->voltage_now);
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end:
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if (result)
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seq_printf(seq, "ERROR: Unable to read battery state\n");
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return result;
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}
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static int acpi_battery_alarm_proc_show(struct seq_file *seq, void *offset)
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{
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struct acpi_battery *battery = seq->private;
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int result = acpi_battery_update(battery, false);
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if (result)
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goto end;
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if (!acpi_battery_present(battery)) {
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seq_printf(seq, "present: no\n");
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goto end;
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}
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seq_printf(seq, "alarm: ");
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if (battery->alarm) {
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seq_printf(seq, "%u %sh\n", battery->alarm,
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acpi_battery_units(battery));
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} else {
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seq_printf(seq, "unsupported\n");
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}
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end:
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if (result)
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seq_printf(seq, "ERROR: Unable to read battery alarm\n");
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return result;
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}
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static ssize_t acpi_battery_write_alarm(struct file *file,
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const char __user * buffer,
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size_t count, loff_t * ppos)
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{
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int result = 0;
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char alarm_string[12] = { '\0' };
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struct seq_file *m = file->private_data;
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struct acpi_battery *battery = m->private;
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if (!battery || (count > sizeof(alarm_string) - 1))
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return -EINVAL;
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if (!acpi_battery_present(battery)) {
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result = -ENODEV;
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goto end;
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}
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if (copy_from_user(alarm_string, buffer, count)) {
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result = -EFAULT;
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goto end;
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}
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alarm_string[count] = '\0';
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if (kstrtoint(alarm_string, 0, &battery->alarm)) {
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result = -EINVAL;
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goto end;
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}
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result = acpi_battery_set_alarm(battery);
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end:
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if (result)
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return result;
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return count;
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}
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static int acpi_battery_alarm_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, acpi_battery_alarm_proc_show, PDE_DATA(inode));
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}
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static const struct proc_ops acpi_battery_alarm_proc_ops = {
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.proc_open = acpi_battery_alarm_proc_open,
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.proc_read = seq_read,
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.proc_write = acpi_battery_write_alarm,
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.proc_lseek = seq_lseek,
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.proc_release = single_release,
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};
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static int acpi_battery_add_fs(struct acpi_device *device)
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{
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pr_warn(PREFIX "Deprecated procfs I/F for battery is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
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if (!acpi_device_dir(device)) {
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acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
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acpi_battery_dir);
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if (!acpi_device_dir(device))
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return -ENODEV;
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}
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if (!proc_create_single_data("info", S_IRUGO, acpi_device_dir(device),
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acpi_battery_info_proc_show, acpi_driver_data(device)))
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return -ENODEV;
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if (!proc_create_single_data("state", S_IRUGO, acpi_device_dir(device),
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acpi_battery_state_proc_show, acpi_driver_data(device)))
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return -ENODEV;
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if (!proc_create_data("alarm", S_IFREG | S_IRUGO | S_IWUSR,
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acpi_device_dir(device), &acpi_battery_alarm_proc_ops,
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acpi_driver_data(device)))
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return -ENODEV;
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return 0;
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}
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static void acpi_battery_remove_fs(struct acpi_device *device)
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{
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if (!acpi_device_dir(device))
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||||
return;
|
||||
remove_proc_subtree(acpi_device_bid(device), acpi_battery_dir);
|
||||
acpi_device_dir(device) = NULL;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
Driver Interface
|
||||
-------------------------------------------------------------------------- */
|
||||
@ -1432,14 +1201,6 @@ static int acpi_battery_add(struct acpi_device *device)
|
||||
if (result)
|
||||
goto fail;
|
||||
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
result = acpi_battery_add_fs(device);
|
||||
if (result) {
|
||||
acpi_battery_remove_fs(device);
|
||||
goto fail;
|
||||
}
|
||||
#endif
|
||||
|
||||
pr_info(PREFIX "%s Slot [%s] (battery %s)\n",
|
||||
ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device),
|
||||
device->status.battery_present ? "present" : "absent");
|
||||
@ -1468,9 +1229,6 @@ static int acpi_battery_remove(struct acpi_device *device)
|
||||
device_init_wakeup(&device->dev, 0);
|
||||
battery = acpi_driver_data(device);
|
||||
unregister_pm_notifier(&battery->pm_nb);
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
acpi_battery_remove_fs(device);
|
||||
#endif
|
||||
sysfs_remove_battery(battery);
|
||||
mutex_destroy(&battery->lock);
|
||||
mutex_destroy(&battery->sysfs_lock);
|
||||
@ -1531,16 +1289,7 @@ static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie)
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
acpi_battery_dir = acpi_lock_battery_dir();
|
||||
if (!acpi_battery_dir)
|
||||
return;
|
||||
#endif
|
||||
result = acpi_bus_register_driver(&acpi_battery_driver);
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
if (result < 0)
|
||||
acpi_unlock_battery_dir(acpi_battery_dir);
|
||||
#endif
|
||||
battery_driver_registered = (result == 0);
|
||||
}
|
||||
|
||||
@ -1560,10 +1309,6 @@ static void __exit acpi_battery_exit(void)
|
||||
acpi_bus_unregister_driver(&acpi_battery_driver);
|
||||
battery_hook_exit();
|
||||
}
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
if (acpi_battery_dir)
|
||||
acpi_unlock_battery_dir(acpi_battery_dir);
|
||||
#endif
|
||||
}
|
||||
|
||||
module_init(acpi_battery_init);
|
||||
|
||||
@ -1,87 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/proc_fs.h>
|
||||
#include <linux/seq_file.h>
|
||||
#include <acpi/acpi_bus.h>
|
||||
#include <acpi/acpi_drivers.h>
|
||||
|
||||
#define PREFIX "ACPI: "
|
||||
|
||||
ACPI_MODULE_NAME("cm_sbs");
|
||||
#define ACPI_AC_CLASS "ac_adapter"
|
||||
#define ACPI_BATTERY_CLASS "battery"
|
||||
#define _COMPONENT ACPI_SBS_COMPONENT
|
||||
static struct proc_dir_entry *acpi_ac_dir;
|
||||
static struct proc_dir_entry *acpi_battery_dir;
|
||||
|
||||
static DEFINE_MUTEX(cm_sbs_mutex);
|
||||
|
||||
static int lock_ac_dir_cnt;
|
||||
static int lock_battery_dir_cnt;
|
||||
|
||||
struct proc_dir_entry *acpi_lock_ac_dir(void)
|
||||
{
|
||||
mutex_lock(&cm_sbs_mutex);
|
||||
if (!acpi_ac_dir)
|
||||
acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir);
|
||||
if (acpi_ac_dir) {
|
||||
lock_ac_dir_cnt++;
|
||||
} else {
|
||||
printk(KERN_ERR PREFIX
|
||||
"Cannot create %s\n", ACPI_AC_CLASS);
|
||||
}
|
||||
mutex_unlock(&cm_sbs_mutex);
|
||||
return acpi_ac_dir;
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_lock_ac_dir);
|
||||
|
||||
void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir_param)
|
||||
{
|
||||
mutex_lock(&cm_sbs_mutex);
|
||||
if (acpi_ac_dir_param)
|
||||
lock_ac_dir_cnt--;
|
||||
if (lock_ac_dir_cnt == 0 && acpi_ac_dir_param && acpi_ac_dir) {
|
||||
remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
|
||||
acpi_ac_dir = NULL;
|
||||
}
|
||||
mutex_unlock(&cm_sbs_mutex);
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_unlock_ac_dir);
|
||||
|
||||
struct proc_dir_entry *acpi_lock_battery_dir(void)
|
||||
{
|
||||
mutex_lock(&cm_sbs_mutex);
|
||||
if (!acpi_battery_dir) {
|
||||
acpi_battery_dir =
|
||||
proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
|
||||
}
|
||||
if (acpi_battery_dir) {
|
||||
lock_battery_dir_cnt++;
|
||||
} else {
|
||||
printk(KERN_ERR PREFIX
|
||||
"Cannot create %s\n", ACPI_BATTERY_CLASS);
|
||||
}
|
||||
mutex_unlock(&cm_sbs_mutex);
|
||||
return acpi_battery_dir;
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_lock_battery_dir);
|
||||
|
||||
void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param)
|
||||
{
|
||||
mutex_lock(&cm_sbs_mutex);
|
||||
if (acpi_battery_dir_param)
|
||||
lock_battery_dir_cnt--;
|
||||
if (lock_battery_dir_cnt == 0 && acpi_battery_dir_param
|
||||
&& acpi_battery_dir) {
|
||||
remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
|
||||
acpi_battery_dir = NULL;
|
||||
}
|
||||
mutex_unlock(&cm_sbs_mutex);
|
||||
return;
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_unlock_battery_dir);
|
||||
Loading…
Reference in New Issue
Block a user