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Message-Id: <1184058473.16979.13.camel@localhost.localdomain>
Date: Tue, 10 Jul 2007 17:07:53 +0800
From: Zhang Rui <rui.zhang@...el.com>
To: Adrian Bunk <bunk@...sta.de>
Cc: lenb@...nel.org, linux-acpi <linux-acpi@...r.kernel.org>,
linux-kernel@...r.kernel.org
Subject: Re: [2.6 patch] the scheduled ACPI_PROCFS removal
Hi,
I really appreciate your help.
The ACPI sysfs conversion work is still in progress.
We'll update the ACPI_PROCFS removal plan soon.
Sorry to make you confused.
Thanks,
Rui
On Mon, 2007-07-09 at 22:57 +0800, Adrian Bunk wrote:
> This patch contains the scheduled removal of the ACPI procfs
> interface.
>
> Signed-off-by: Adrian Bunk <bunk@...sta.de>
>
> ---
>
> Documentation/feature-removal-schedule.txt | 8 -
> drivers/acpi/Kconfig | 13 -
> drivers/acpi/debug.c | 143
> ---------------------
> drivers/acpi/system.c | 129 ------------------
> 4 files changed, 293 deletions(-)
>
> --- linux-2.6.22-rc6-mm1/Documentation/feature-removal-
> schedule.txt.old 2007-07-09 02:04:01.000000000 +0200
> +++ linux-2.6.22-rc6-mm1/Documentation/feature-removal-schedule.txt
> 2007-07-09 02:04:32.000000000 +0200
> @@ -190,14 +190,6 @@
>
> ---------------------------
>
> -What: ACPI procfs interface
> -When: July 2007
> -Why: After ACPI sysfs conversion, ACPI attributes will be
> duplicated
> - in sysfs and the ACPI procfs interface should be removed.
> -Who: Zhang Rui <rui.zhang@...el.com>
> -
> ----------------------------
> -
> What: /proc/acpi/button
> When: August 2007
> Why: /proc/acpi/button has been replaced by events to the input
> layer
> --- linux-2.6.22-rc6-mm1/drivers/acpi/Kconfig.old 2007-07-09
> 02:04:39.000000000 +0200
> +++ linux-2.6.22-rc6-mm1/drivers/acpi/Kconfig 2007-07-09
> 02:04:57.000000000 +0200
> @@ -75,19 +75,6 @@
> Create /proc/acpi/sleep
> Deprecated by /sys/power/state
>
> -config ACPI_PROCFS
> - bool "Procfs interface (deprecated)"
> - default y
> - ---help---
> - The Procfs interface for ACPI is made optional for backward
> compatibility.
> - As the same functions are duplicated in the sysfs interface
> - and this proc interface will be removed some time later,
> - it's marked as deprecated.
> - ( /proc/acpi/debug_layer && debug_level are deprecated by
> - /sys/module/acpi/parameters/debug_layer && debug_level.
> - /proc/acpi/info is deprecated by
> - /sys/module/acpi/parameters/acpica_version )
> -
> config ACPI_AC
> tristate "AC Adapter"
> depends on X86
> --- linux-2.6.22-rc6-mm1/drivers/acpi/debug.c.old 2007-07-09
> 02:05:04.000000000 +0200
> +++ linux-2.6.22-rc6-mm1/drivers/acpi/debug.c 2007-07-09
> 02:05:41.000000000 +0200
> @@ -130,146 +130,3 @@
> module_param_call(debug_layer, param_set_uint, param_get_debug_layer,
> &acpi_dbg_layer, 0644);
> module_param_call(debug_level, param_set_uint, param_get_debug_level,
> &acpi_dbg_level, 0644);
>
> -/*
> --------------------------------------------------------------------------
> - FS Interface (/proc)
> -
> -------------------------------------------------------------------------- */
> -#ifdef CONFIG_ACPI_PROCFS
> -#define ACPI_SYSTEM_FILE_DEBUG_LAYER "debug_layer"
> -#define ACPI_SYSTEM_FILE_DEBUG_LEVEL "debug_level"
> -
> -static int
> -acpi_system_read_debug(char *page,
> - char **start, off_t off, int count, int *eof,
> void *data)
> -{
> - char *p = page;
> - int size = 0;
> - unsigned int i;
> -
> - if (off != 0)
> - goto end;
> -
> - p += sprintf(p, "%-25s\tHex SET\n", "Description");
> -
> - switch ((unsigned long)data) {
> - case 0:
> - for (i = 0; i < ARRAY_SIZE(acpi_debug_layers); i++) {
> - p += sprintf(p, "%-25s\t0x%08lX [%c]\n",
> - acpi_debug_layers[i].name,
> - acpi_debug_layers[i].value,
> - (acpi_dbg_layer &
> acpi_debug_layers[i].
> - value) ? '*' : ' ');
> - }
> - p += sprintf(p, "%-25s\t0x%08X [%c]\n",
> "ACPI_ALL_DRIVERS",
> - ACPI_ALL_DRIVERS,
> - (acpi_dbg_layer & ACPI_ALL_DRIVERS) ==
> - ACPI_ALL_DRIVERS ? '*' : (acpi_dbg_layer
> &
> -
> ACPI_ALL_DRIVERS) ==
> - 0 ? ' ' : '-');
> - p += sprintf(p,
> - "--\ndebug_layer = 0x%08X (* = enabled, -
> = partial)\n",
> - acpi_dbg_layer);
> - break;
> - case 1:
> - for (i = 0; i < ARRAY_SIZE(acpi_debug_levels); i++) {
> - p += sprintf(p, "%-25s\t0x%08lX [%c]\n",
> - acpi_debug_levels[i].name,
> - acpi_debug_levels[i].value,
> - (acpi_dbg_level &
> acpi_debug_levels[i].
> - value) ? '*' : ' ');
> - }
> - p += sprintf(p, "--\ndebug_level = 0x%08X (* =
> enabled)\n",
> - acpi_dbg_level);
> - break;
> - default:
> - p += sprintf(p, "Invalid debug option\n");
> - break;
> - }
> -
> - end:
> - size = (p - page);
> - if (size <= off + count)
> - *eof = 1;
> - *start = page + off;
> - size -= off;
> - if (size > count)
> - size = count;
> - if (size < 0)
> - size = 0;
> -
> - return size;
> -}
> -
> -static int
> -acpi_system_write_debug(struct file *file,
> - const char __user * buffer,
> - unsigned long count, void *data)
> -{
> - char debug_string[12] = { '\0' };
> -
> -
> - if (count > sizeof(debug_string) - 1)
> - return -EINVAL;
> -
> - if (copy_from_user(debug_string, buffer, count))
> - return -EFAULT;
> -
> - debug_string[count] = '\0';
> -
> - switch ((unsigned long)data) {
> - case 0:
> - acpi_dbg_layer = simple_strtoul(debug_string, NULL,
> 0);
> - break;
> - case 1:
> - acpi_dbg_level = simple_strtoul(debug_string, NULL,
> 0);
> - break;
> - default:
> - return -EINVAL;
> - }
> -
> - return count;
> -}
> -
> -static int __init acpi_debug_init(void)
> -{
> - struct proc_dir_entry *entry;
> - int error = 0;
> - char *name;
> -
> -
> - if (acpi_disabled)
> - return 0;
> -
> - /* 'debug_layer' [R/W] */
> - name = ACPI_SYSTEM_FILE_DEBUG_LAYER;
> - entry =
> - create_proc_read_entry(name, S_IFREG | S_IRUGO | S_IWUSR,
> - acpi_root_dir,
> acpi_system_read_debug,
> - (void *)0);
> - if (entry)
> - entry->write_proc = acpi_system_write_debug;
> - else
> - goto Error;
> -
> - /* 'debug_level' [R/W] */
> - name = ACPI_SYSTEM_FILE_DEBUG_LEVEL;
> - entry =
> - create_proc_read_entry(name, S_IFREG | S_IRUGO | S_IWUSR,
> - acpi_root_dir,
> acpi_system_read_debug,
> - (void *)1);
> - if (entry)
> - entry->write_proc = acpi_system_write_debug;
> - else
> - goto Error;
> -
> - Done:
> - return error;
> -
> - Error:
> - remove_proc_entry(ACPI_SYSTEM_FILE_DEBUG_LEVEL,
> acpi_root_dir);
> - remove_proc_entry(ACPI_SYSTEM_FILE_DEBUG_LAYER,
> acpi_root_dir);
> - error = -ENODEV;
> - goto Done;
> -}
> -
> -subsys_initcall(acpi_debug_init);
> -#endif
> --- linux-2.6.22-rc6-mm1/drivers/acpi/system.c.old 2007-07-09
> 02:05:48.000000000 +0200
> +++ linux-2.6.22-rc6-mm1/drivers/acpi/system.c 2007-07-09
> 02:06:30.000000000 +0200
> @@ -167,131 +167,6 @@
> return 0;
> }
>
> -/*
> --------------------------------------------------------------------------
> - FS Interface (/proc)
> -
> -------------------------------------------------------------------------- */
> -#ifdef CONFIG_ACPI_PROCFS
> -#define ACPI_SYSTEM_FILE_INFO "info"
> -#define ACPI_SYSTEM_FILE_EVENT "event"
> -#define ACPI_SYSTEM_FILE_DSDT "dsdt"
> -#define ACPI_SYSTEM_FILE_FADT "fadt"
> -
> -static int acpi_system_read_info(struct seq_file *seq, void *offset)
> -{
> -
> - seq_printf(seq, "version: %x\n",
> ACPI_CA_VERSION);
> - return 0;
> -}
> -
> -static int acpi_system_info_open_fs(struct inode *inode, struct file
> *file)
> -{
> - return single_open(file, acpi_system_read_info, PDE(inode)-
> >data);
> -}
> -
> -static const struct file_operations acpi_system_info_ops = {
> - .open = acpi_system_info_open_fs,
> - .read = seq_read,
> - .llseek = seq_lseek,
> - .release = single_release,
> -};
> -
> -static ssize_t acpi_system_read_dsdt(struct file *, char __user *,
> size_t,
> - loff_t *);
> -
> -static const struct file_operations acpi_system_dsdt_ops = {
> - .read = acpi_system_read_dsdt,
> -};
> -
> -static ssize_t
> -acpi_system_read_dsdt(struct file *file,
> - char __user * buffer, size_t count, loff_t *
> ppos)
> -{
> - acpi_status status = AE_OK;
> - struct acpi_table_header *dsdt = NULL;
> - ssize_t res;
> -
> - status = acpi_get_table(ACPI_SIG_DSDT, 1, &dsdt);
> - if (ACPI_FAILURE(status))
> - return -ENODEV;
> -
> - res = simple_read_from_buffer(buffer, count, ppos, dsdt, dsdt-
> >length);
> -
> - return res;
> -}
> -
> -static ssize_t acpi_system_read_fadt(struct file *, char __user *,
> size_t,
> - loff_t *);
> -
> -static const struct file_operations acpi_system_fadt_ops = {
> - .read = acpi_system_read_fadt,
> -};
> -
> -static ssize_t
> -acpi_system_read_fadt(struct file *file,
> - char __user * buffer, size_t count, loff_t *
> ppos)
> -{
> - acpi_status status = AE_OK;
> - struct acpi_table_header *fadt = NULL;
> - ssize_t res;
> -
> - status = acpi_get_table(ACPI_SIG_FADT, 1, &fadt);
> - if (ACPI_FAILURE(status))
> - return -ENODEV;
> -
> - res = simple_read_from_buffer(buffer, count, ppos, fadt, fadt-
> >length);
> -
> - return res;
> -}
> -
> -static int acpi_system_procfs_init(void)
> -{
> - struct proc_dir_entry *entry;
> - int error = 0;
> - char *name;
> -
> - /* 'info' [R] */
> - name = ACPI_SYSTEM_FILE_INFO;
> - entry = create_proc_entry(name, S_IRUGO, acpi_root_dir);
> - if (!entry)
> - goto Error;
> - else {
> - entry->proc_fops = &acpi_system_info_ops;
> - }
> -
> - /* 'dsdt' [R] */
> - name = ACPI_SYSTEM_FILE_DSDT;
> - entry = create_proc_entry(name, S_IRUSR, acpi_root_dir);
> - if (entry)
> - entry->proc_fops = &acpi_system_dsdt_ops;
> - else
> - goto Error;
> -
> - /* 'fadt' [R] */
> - name = ACPI_SYSTEM_FILE_FADT;
> - entry = create_proc_entry(name, S_IRUSR, acpi_root_dir);
> - if (entry)
> - entry->proc_fops = &acpi_system_fadt_ops;
> - else
> - goto Error;
> -
> - Done:
> - return error;
> -
> - Error:
> - remove_proc_entry(ACPI_SYSTEM_FILE_FADT, acpi_root_dir);
> - remove_proc_entry(ACPI_SYSTEM_FILE_DSDT, acpi_root_dir);
> - remove_proc_entry(ACPI_SYSTEM_FILE_INFO, acpi_root_dir);
> -
> - error = -EFAULT;
> - goto Done;
> -}
> -#else
> -static int acpi_system_procfs_init(void)
> -{
> - return 0;
> -}
> -#endif
> -
> static int __init acpi_system_init(void)
> {
> int result = 0;
> @@ -299,10 +174,6 @@
> if (acpi_disabled)
> return 0;
>
> - result = acpi_system_procfs_init();
> - if (result)
> - return result;
> -
> result = acpi_system_sysfs_init();
>
> return result;
>
>
-
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