[linux-2.6-block.git] / include / linux / sysfs.h

/*
 * sysfs.h - definitions for the device driver filesystem
 *
 * Copyright (c) 2001,2002 Patrick Mochel
 * Copyright (c) 2004 Silicon Graphics, Inc.
 * Copyright (c) 2007 SUSE Linux Products GmbH
 * Copyright (c) 2007 Tejun Heo <teheo@suse.de>
 *
 * Please see Documentation/filesystems/sysfs.txt for more information.
 */

#ifndef _SYSFS_H_
#define _SYSFS_H_

#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/list.h>
#include <linux/lockdep.h>
#include <linux/kobject_ns.h>
#include <linux/stat.h>
#include <linux/atomic.h>

struct kobject;
struct module;
struct bin_attribute;
enum kobj_ns_type;

struct attribute {
	const char		*name;
	umode_t			mode;
#ifdef CONFIG_DEBUG_LOCK_ALLOC
	bool			ignore_lockdep:1;
	struct lock_class_key	*key;
	struct lock_class_key	skey;
#endif
};

/**
 *	sysfs_attr_init - initialize a dynamically allocated sysfs attribute
 *	@attr: struct attribute to initialize
 *
 *	Initialize a dynamically allocated struct attribute so we can
 *	make lockdep happy.  This is a new requirement for attributes
 *	and initially this is only needed when lockdep is enabled.
 *	Lockdep gives a nice error when your attribute is added to
 *	sysfs if you don't have this.
 */
#ifdef CONFIG_DEBUG_LOCK_ALLOC
#define sysfs_attr_init(attr)				\
do {							\
	static struct lock_class_key __key;		\
							\
	(attr)->key = &__key;				\
} while (0)
#else
#define sysfs_attr_init(attr) do {} while (0)
#endif

struct attribute_group {
	const char		*name;
	umode_t			(*is_visible)(struct kobject *,
					      struct attribute *, int);
	struct attribute	**attrs;
	struct bin_attribute	**bin_attrs;
};

/**
 * Use these macros to make defining attributes easier. See include/linux/device.h
 * for examples..
 */

#define __ATTR(_name, _mode, _show, _store) {				\
	.attr = {.name = __stringify(_name), .mode = _mode },		\
	.show	= _show,						\
	.store	= _store,						\
}

#define __ATTR_RO(_name) {						\
	.attr	= { .name = __stringify(_name), .mode = S_IRUGO },	\
	.show	= _name##_show,						\
}

#define __ATTR_RW(_name) __ATTR(_name, (S_IWUSR | S_IRUGO),		\
			 _name##_show, _name##_store)

#define __ATTR_NULL { .attr = { .name = NULL } }

#ifdef CONFIG_DEBUG_LOCK_ALLOC
#define __ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) {	\
	.attr = {.name = __stringify(_name), .mode = _mode,	\
			.ignore_lockdep = true },		\
	.show		= _show,				\
	.store		= _store,				\
}
#else
#define __ATTR_IGNORE_LOCKDEP	__ATTR
#endif

#define __ATTRIBUTE_GROUPS(_name)				\
static const struct attribute_group *_name##_groups[] = {	\
	&_name##_group,						\
	NULL,							\
}

#define ATTRIBUTE_GROUPS(_name)					\
static const struct attribute_group _name##_group = {		\
	.attrs = _name##_attrs,					\
};								\
__ATTRIBUTE_GROUPS(_name)

struct file;
struct vm_area_struct;

struct bin_attribute {
	struct attribute	attr;
	size_t			size;
	void			*private;
	ssize_t (*read)(struct file *, struct kobject *, struct bin_attribute *,
			char *, loff_t, size_t);
	ssize_t (*write)(struct file *, struct kobject *, struct bin_attribute *,
			 char *, loff_t, size_t);
	int (*mmap)(struct file *, struct kobject *, struct bin_attribute *attr,
		    struct vm_area_struct *vma);
};

/**
 *	sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute
 *	@attr: struct bin_attribute to initialize
 *
 *	Initialize a dynamically allocated struct bin_attribute so we
 *	can make lockdep happy.  This is a new requirement for
 *	attributes and initially this is only needed when lockdep is
 *	enabled.  Lockdep gives a nice error when your attribute is
 *	added to sysfs if you don't have this.
 */
#define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr)

/* macros to create static binary attributes easier */
#define __BIN_ATTR(_name, _mode, _read, _write, _size) {		\
	.attr = { .name = __stringify(_name), .mode = _mode },		\
	.read	= _read,						\
	.write	= _write,						\
	.size	= _size,						\
}

#define __BIN_ATTR_RO(_name, _size) {					\
	.attr	= { .name = __stringify(_name), .mode = S_IRUGO },	\
	.read	= _name##_read,						\
	.size	= _size,						\
}

#define __BIN_ATTR_RW(_name, _size) __BIN_ATTR(_name,			\
				   (S_IWUSR | S_IRUGO), _name##_read,	\
				   _name##_write, _size)

#define __BIN_ATTR_NULL __ATTR_NULL

#define BIN_ATTR(_name, _mode, _read, _write, _size)			\
struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read,	\
					_write, _size)

#define BIN_ATTR_RO(_name, _size)					\
struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size)

#define BIN_ATTR_RW(_name, _size)					\
struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size)

struct sysfs_ops {
	ssize_t	(*show)(struct kobject *, struct attribute *, char *);
	ssize_t	(*store)(struct kobject *, struct attribute *, const char *, size_t);
	const void *(*namespace)(struct kobject *, const struct attribute *);
};

struct sysfs_dirent;

#ifdef CONFIG_SYSFS

int sysfs_schedule_callback(struct kobject *kobj, void (*func)(void *),
			    void *data, struct module *owner);

int __must_check sysfs_create_dir(struct kobject *kobj);
void sysfs_remove_dir(struct kobject *kobj);
int __must_check sysfs_rename_dir(struct kobject *kobj, const char *new_name);
int __must_check sysfs_move_dir(struct kobject *kobj,
				struct kobject *new_parent_kobj);

int __must_check sysfs_create_file(struct kobject *kobj,
				   const struct attribute *attr);
int __must_check sysfs_create_files(struct kobject *kobj,
				   const struct attribute **attr);
int __must_check sysfs_chmod_file(struct kobject *kobj,
				  const struct attribute *attr, umode_t mode);
void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr);
void sysfs_remove_files(struct kobject *kobj, const struct attribute **attr);

int __must_check sysfs_create_bin_file(struct kobject *kobj,
				       const struct bin_attribute *attr);
void sysfs_remove_bin_file(struct kobject *kobj,
			   const struct bin_attribute *attr);

int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target,
				   const char *name);
int __must_check sysfs_create_link_nowarn(struct kobject *kobj,
					  struct kobject *target,
					  const char *name);
void sysfs_remove_link(struct kobject *kobj, const char *name);

int sysfs_rename_link(struct kobject *kobj, struct kobject *target,
			const char *old_name, const char *new_name);

void sysfs_delete_link(struct kobject *dir, struct kobject *targ,
			const char *name);

int __must_check sysfs_create_group(struct kobject *kobj,
				    const struct attribute_group *grp);
int __must_check sysfs_create_groups(struct kobject *kobj,
				     const struct attribute_group **groups);
int sysfs_update_group(struct kobject *kobj,
		       const struct attribute_group *grp);
void sysfs_remove_group(struct kobject *kobj,
			const struct attribute_group *grp);
void sysfs_remove_groups(struct kobject *kobj,
			 const struct attribute_group **groups);
int sysfs_add_file_to_group(struct kobject *kobj,
			const struct attribute *attr, const char *group);
void sysfs_remove_file_from_group(struct kobject *kobj,
			const struct attribute *attr, const char *group);
int sysfs_merge_group(struct kobject *kobj,
		       const struct attribute_group *grp);
void sysfs_unmerge_group(struct kobject *kobj,
		       const struct attribute_group *grp);
int sysfs_add_link_to_group(struct kobject *kobj, const char *group_name,
			    struct kobject *target, const char *link_name);
void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name,
				  const char *link_name);

void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr);
void sysfs_notify_dirent(struct sysfs_dirent *sd);
struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd,
				      const void *ns,
				      const unsigned char *name);
struct sysfs_dirent *sysfs_get(struct sysfs_dirent *sd);
void sysfs_put(struct sysfs_dirent *sd);

int __must_check sysfs_init(void);

#else /* CONFIG_SYSFS */

static inline int sysfs_schedule_callback(struct kobject *kobj,
		void (*func)(void *), void *data, struct module *owner)
{
	return -ENOSYS;
}

static inline int sysfs_create_dir(struct kobject *kobj)
{
	return 0;
}

static inline void sysfs_remove_dir(struct kobject *kobj)
{
}

static inline int sysfs_rename_dir(struct kobject *kobj, const char *new_name)
{
	return 0;
}

static inline int sysfs_move_dir(struct kobject *kobj,
				 struct kobject *new_parent_kobj)
{
	return 0;
}

static inline int sysfs_create_file(struct kobject *kobj,
				    const struct attribute *attr)
{
	return 0;
}

static inline int sysfs_create_files(struct kobject *kobj,
				    const struct attribute **attr)
{
	return 0;
}

static inline int sysfs_chmod_file(struct kobject *kobj,
				   const struct attribute *attr, umode_t mode)
{
	return 0;
}

static inline void sysfs_remove_file(struct kobject *kobj,
				     const struct attribute *attr)
{
}

static inline void sysfs_remove_files(struct kobject *kobj,
				     const struct attribute **attr)
{
}

static inline int sysfs_create_bin_file(struct kobject *kobj,
					const struct bin_attribute *attr)
{
	return 0;
}

static inline void sysfs_remove_bin_file(struct kobject *kobj,
					 const struct bin_attribute *attr)
{
}

static inline int sysfs_create_link(struct kobject *kobj,
				    struct kobject *target, const char *name)
{
	return 0;
}

static inline int sysfs_create_link_nowarn(struct kobject *kobj,
					   struct kobject *target,
					   const char *name)
{
	return 0;
}

static inline void sysfs_remove_link(struct kobject *kobj, const char *name)
{
}

static inline int sysfs_rename_link(struct kobject *k, struct kobject *t,
				    const char *old_name, const char *new_name)
{
	return 0;
}

static inline void sysfs_delete_link(struct kobject *k, struct kobject *t,
				     const char *name)
{
}

static inline int sysfs_create_group(struct kobject *kobj,
				     const struct attribute_group *grp)
{
	return 0;
}

static inline int sysfs_update_group(struct kobject *kobj,
				const struct attribute_group *grp)
{
	return 0;
}

static inline void sysfs_remove_group(struct kobject *kobj,
				      const struct attribute_group *grp)
{
}

static inline int sysfs_add_file_to_group(struct kobject *kobj,
		const struct attribute *attr, const char *group)
{
	return 0;
}

static inline void sysfs_remove_file_from_group(struct kobject *kobj,
		const struct attribute *attr, const char *group)
{
}

static inline int sysfs_merge_group(struct kobject *kobj,
		       const struct attribute_group *grp)
{
	return 0;
}

static inline void sysfs_unmerge_group(struct kobject *kobj,
		       const struct attribute_group *grp)
{
}

static inline int sysfs_add_link_to_group(struct kobject *kobj,
		const char *group_name, struct kobject *target,
		const char *link_name)
{
	return 0;
}

static inline void sysfs_remove_link_from_group(struct kobject *kobj,
		const char *group_name, const char *link_name)
{
}

static inline void sysfs_notify(struct kobject *kobj, const char *dir,
				const char *attr)
{
}
static inline void sysfs_notify_dirent(struct sysfs_dirent *sd)
{
}
static inline
struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd,
				      const void *ns,
				      const unsigned char *name)
{
	return NULL;
}
static inline struct sysfs_dirent *sysfs_get(struct sysfs_dirent *sd)
{
	return NULL;
}
static inline void sysfs_put(struct sysfs_dirent *sd)
{
}

static inline int __must_check sysfs_init(void)
{
	return 0;
}

#endif /* CONFIG_SYSFS */

#endif /* _SYSFS_H_ */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* sysfs.h - definitions for the device driver filesystem
	3	*
	4	* Copyright (c) 2001,2002 Patrick Mochel
	5	* Copyright (c) 2004 Silicon Graphics, Inc.
6d66f5cd TH	6	* Copyright (c) 2007 SUSE Linux Products GmbH
6d66f5cd TH	7	* Copyright (c) 2007 Tejun Heo <teheo@suse.de>
1da177e4 LT	8	*
	9	* Please see Documentation/filesystems/sysfs.txt for more information.
	10	*/
	11
	12	#ifndef _SYSFS_H_
	13	#define _SYSFS_H_
	14
4a7fb636	15	#include <linux/compiler.h>
5851fadc	16	#include <linux/errno.h>
bf0acc33	17	#include <linux/list.h>
6992f533	18	#include <linux/lockdep.h>
8488a38f	19	#include <linux/kobject_ns.h>
3493f69f	20	#include <linux/stat.h>
60063497	21	#include <linux/atomic.h>
1da177e4 LT	22
	23	struct kobject;
	24	struct module;
6ab9cea1	25	struct bin_attribute;
3ff195b0	26	enum kobj_ns_type;
1da177e4 LT	27
1da177e4 LT	28	struct attribute {
59f69015	29	const char *name;
9104e427	30	umode_t mode;
6992f533	31	#ifdef CONFIG_DEBUG_LOCK_ALLOC
356c05d5	32	bool ignore_lockdep:1;
6992f533 EB	33	struct lock_class_key *key;
	34	struct lock_class_key skey;
	35	#endif
1da177e4 LT	36	};
1da177e4 LT	37
35960258 EB	38	/**
	39	* sysfs_attr_init - initialize a dynamically allocated sysfs attribute
	40	* @attr: struct attribute to initialize
	41	*
	42	* Initialize a dynamically allocated struct attribute so we can
	43	* make lockdep happy. This is a new requirement for attributes
	44	* and initially this is only needed when lockdep is enabled.
	45	* Lockdep gives a nice error when your attribute is added to
	46	* sysfs if you don't have this.
	47	*/
6992f533 EB	48	#ifdef CONFIG_DEBUG_LOCK_ALLOC
	49	#define sysfs_attr_init(attr) \
	50	do { \
	51	static struct lock_class_key __key; \
	52	\
	53	(attr)->key = &__key; \
5da5c9c8	54	} while (0)
6992f533	55	#else
5da5c9c8	56	#define sysfs_attr_init(attr) do {} while (0)
6992f533 EB	57	#endif
6992f533 EB	58
1da177e4	59	struct attribute_group {
59f69015	60	const char *name;
587a1f16	61	umode_t (is_visible)(struct kobject ,
d4acd722	62	struct attribute *, int);
59f69015	63	struct attribute **attrs;
6ab9cea1	64	struct bin_attribute **bin_attrs;
1da177e4 LT	65	};
1da177e4 LT	66
1da177e4 LT	67	/**
	68	* Use these macros to make defining attributes easier. See include/linux/device.h
	69	* for examples..
	70	*/
	71
5da5c9c8	72	#define __ATTR(_name, _mode, _show, _store) { \
aa01aa3c OS	73	.attr = {.name = __stringify(_name), .mode = _mode }, \
	74	.show = _show, \
	75	.store = _store, \
1da177e4 LT	76	}
1da177e4 LT	77
aa01aa3c OS	78	#define __ATTR_RO(_name) { \
	79	.attr = { .name = __stringify(_name), .mode = S_IRUGO }, \
	80	.show = _name##_show, \
1da177e4 LT	81	}
1da177e4 LT	82
aa01aa3c OS	83	#define __ATTR_RW(_name) __ATTR(_name, (S_IWUSR \| S_IRUGO), \
aa01aa3c OS	84	_name##_show, _name##_store)
b9b32597	85
1da177e4	86	#define __ATTR_NULL { .attr = { .name = NULL } }
356c05d5 AS	87
	88	#ifdef CONFIG_DEBUG_LOCK_ALLOC
	89	#define __ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) { \
	90	.attr = {.name = __stringify(_name), .mode = _mode, \
	91	.ignore_lockdep = true }, \
	92	.show = _show, \
	93	.store = _store, \
	94	}
	95	#else
	96	#define __ATTR_IGNORE_LOCKDEP __ATTR
	97	#endif
1da177e4	98
3493f69f OS	99	#define __ATTRIBUTE_GROUPS(_name) \
	100	static const struct attribute_group *_name##_groups[] = { \
	101	&_name##_group, \
f2f37f58 GKH	102	NULL, \
	103	}
	104
3493f69f OS	105	#define ATTRIBUTE_GROUPS(_name) \
	106	static const struct attribute_group _name##_group = { \
	107	.attrs = _name##_attrs, \
	108	}; \
	109	__ATTRIBUTE_GROUPS(_name)
	110
2c3c8bea	111	struct file;
1da177e4 LT	112	struct vm_area_struct;
	113
	114	struct bin_attribute {
	115	struct attribute attr;
	116	size_t size;
	117	void *private;
2c3c8bea	118	ssize_t (read)(struct file , struct kobject , struct bin_attribute ,
91a69029	119	char *, loff_t, size_t);
5da5c9c8	120	ssize_t (write)(struct file , struct kobject , struct bin_attribute ,
91a69029	121	char *, loff_t, size_t);
2c3c8bea	122	int (mmap)(struct file , struct kobject , struct bin_attribute attr,
1da177e4 LT	123	struct vm_area_struct *vma);
	124	};
	125
35960258 EB	126	/**
	127	* sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute
	128	* @attr: struct bin_attribute to initialize
	129	*
	130	* Initialize a dynamically allocated struct bin_attribute so we
	131	* can make lockdep happy. This is a new requirement for
	132	* attributes and initially this is only needed when lockdep is
	133	* enabled. Lockdep gives a nice error when your attribute is
	134	* added to sysfs if you don't have this.
	135	*/
62e877b8	136	#define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr)
6992f533	137
3493f69f OS	138	/* macros to create static binary attributes easier */
	139	#define __BIN_ATTR(_name, _mode, _read, _write, _size) { \
	140	.attr = { .name = __stringify(_name), .mode = _mode }, \
	141	.read = _read, \
	142	.write = _write, \
	143	.size = _size, \
	144	}
	145
	146	#define __BIN_ATTR_RO(_name, _size) { \
	147	.attr = { .name = __stringify(_name), .mode = S_IRUGO }, \
	148	.read = _name##_read, \
	149	.size = _size, \
e4b63603 GKH	150	}
e4b63603 GKH	151
3493f69f OS	152	#define __BIN_ATTR_RW(_name, _size) __BIN_ATTR(_name, \
3493f69f OS	153	(S_IWUSR \| S_IRUGO), _name##_read, \
68531526	154	_name##_write, _size)
3493f69f OS	155
	156	#define __BIN_ATTR_NULL __ATTR_NULL
	157
	158	#define BIN_ATTR(_name, _mode, _read, _write, _size) \
	159	struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \
	160	_write, _size)
	161
	162	#define BIN_ATTR_RO(_name, _size) \
	163	struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size)
	164
	165	#define BIN_ATTR_RW(_name, _size) \
	166	struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size)
	167
1da177e4	168	struct sysfs_ops {
5da5c9c8 GKH	169	ssize_t (show)(struct kobject , struct attribute , char );
5da5c9c8 GKH	170	ssize_t (store)(struct kobject , struct attribute , const char , size_t);
487505c2	171	const void (namespace)(struct kobject , const struct attribute );
1da177e4 LT	172	};
1da177e4 LT	173
f1282c84 NB	174	struct sysfs_dirent;
f1282c84 NB	175
1da177e4 LT	176	#ifdef CONFIG_SYSFS
1da177e4 LT	177
59f69015 TH	178	int sysfs_schedule_callback(struct kobject kobj, void (func)(void *),
59f69015 TH	179	void data, struct module owner);
1da177e4	180
59f69015 TH	181	int __must_check sysfs_create_dir(struct kobject *kobj);
	182	void sysfs_remove_dir(struct kobject *kobj);
	183	int __must_check sysfs_rename_dir(struct kobject kobj, const char new_name);
	184	int __must_check sysfs_move_dir(struct kobject *kobj,
	185	struct kobject *new_parent_kobj);
31e5abe9	186
59f69015 TH	187	int __must_check sysfs_create_file(struct kobject *kobj,
59f69015 TH	188	const struct attribute *attr);
1c205ae1 AK	189	int __must_check sysfs_create_files(struct kobject *kobj,
1c205ae1 AK	190	const struct attribute **attr);
49c19400	191	int __must_check sysfs_chmod_file(struct kobject *kobj,
48176a97	192	const struct attribute *attr, umode_t mode);
59f69015	193	void sysfs_remove_file(struct kobject kobj, const struct attribute attr);
1c205ae1	194	void sysfs_remove_files(struct kobject kobj, const struct attribute *attr);
1da177e4	195
4a7fb636	196	int __must_check sysfs_create_bin_file(struct kobject *kobj,
66ecb92b PC	197	const struct bin_attribute *attr);
	198	void sysfs_remove_bin_file(struct kobject *kobj,
	199	const struct bin_attribute *attr);
1da177e4	200
59f69015 TH	201	int __must_check sysfs_create_link(struct kobject kobj, struct kobject target,
59f69015 TH	202	const char *name);
36ce6dad CH	203	int __must_check sysfs_create_link_nowarn(struct kobject *kobj,
	204	struct kobject *target,
	205	const char *name);
59f69015 TH	206	void sysfs_remove_link(struct kobject kobj, const char name);
59f69015 TH	207
7cb32942 EB	208	int sysfs_rename_link(struct kobject kobj, struct kobject target,
	209	const char old_name, const char new_name);
	210
746edb7a EB	211	void sysfs_delete_link(struct kobject dir, struct kobject targ,
	212	const char *name);
	213
59f69015 TH	214	int __must_check sysfs_create_group(struct kobject *kobj,
59f69015 TH	215	const struct attribute_group *grp);
3e9b2bae GKH	216	int __must_check sysfs_create_groups(struct kobject *kobj,
3e9b2bae GKH	217	const struct attribute_group **groups);
0f423895 JB	218	int sysfs_update_group(struct kobject *kobj,
0f423895 JB	219	const struct attribute_group *grp);
59f69015 TH	220	void sysfs_remove_group(struct kobject *kobj,
59f69015 TH	221	const struct attribute_group *grp);
3e9b2bae GKH	222	void sysfs_remove_groups(struct kobject *kobj,
3e9b2bae GKH	223	const struct attribute_group **groups);
dfa87c82	224	int sysfs_add_file_to_group(struct kobject *kobj,
59f69015	225	const struct attribute attr, const char group);
dfa87c82	226	void sysfs_remove_file_from_group(struct kobject *kobj,
59f69015	227	const struct attribute attr, const char group);
69d44ffb AS	228	int sysfs_merge_group(struct kobject *kobj,
	229	const struct attribute_group *grp);
	230	void sysfs_unmerge_group(struct kobject *kobj,
	231	const struct attribute_group *grp);
0bb8f3d6 RW	232	int sysfs_add_link_to_group(struct kobject kobj, const char group_name,
	233	struct kobject target, const char link_name);
	234	void sysfs_remove_link_from_group(struct kobject kobj, const char group_name,
	235	const char *link_name);
dfa87c82	236
8c0e3998	237	void sysfs_notify(struct kobject kobj, const char dir, const char *attr);
f1282c84 NB	238	void sysfs_notify_dirent(struct sysfs_dirent *sd);
f1282c84 NB	239	struct sysfs_dirent sysfs_get_dirent(struct sysfs_dirent parent_sd,
3ff195b0	240	const void *ns,
f1282c84 NB	241	const unsigned char *name);
	242	struct sysfs_dirent sysfs_get(struct sysfs_dirent sd);
	243	void sysfs_put(struct sysfs_dirent *sd);
3ff195b0	244
f1282c84	245	int __must_check sysfs_init(void);
f20a9ead	246
1da177e4 LT	247	#else /* CONFIG_SYSFS */
1da177e4 LT	248
d9a9cdfb	249	static inline int sysfs_schedule_callback(struct kobject *kobj,
523ded71	250	void (func)(void ), void data, struct module owner)
d9a9cdfb AS	251	{
	252	return -ENOSYS;
	253	}
	254
59f69015	255	static inline int sysfs_create_dir(struct kobject *kobj)
1da177e4 LT	256	{
	257	return 0;
	258	}
	259
59f69015	260	static inline void sysfs_remove_dir(struct kobject *kobj)
1da177e4	261	{
1da177e4 LT	262	}
1da177e4 LT	263
59f69015	264	static inline int sysfs_rename_dir(struct kobject kobj, const char new_name)
1da177e4	265	{
0b4a4fea	266	return 0;
1da177e4 LT	267	}
1da177e4 LT	268
59f69015 TH	269	static inline int sysfs_move_dir(struct kobject *kobj,
59f69015 TH	270	struct kobject *new_parent_kobj)
8a82472f CH	271	{
	272	return 0;
	273	}
	274
59f69015 TH	275	static inline int sysfs_create_file(struct kobject *kobj,
59f69015 TH	276	const struct attribute *attr)
1da177e4 LT	277	{
	278	return 0;
	279	}
	280
1c205ae1 AK	281	static inline int sysfs_create_files(struct kobject *kobj,
	282	const struct attribute **attr)
	283	{
	284	return 0;
	285	}
	286
59f69015	287	static inline int sysfs_chmod_file(struct kobject *kobj,
48176a97	288	const struct attribute *attr, umode_t mode)
31e5abe9 KS	289	{
	290	return 0;
	291	}
1da177e4	292
59f69015 TH	293	static inline void sysfs_remove_file(struct kobject *kobj,
59f69015 TH	294	const struct attribute *attr)
1da177e4	295	{
1da177e4 LT	296	}
1da177e4 LT	297
1c205ae1 AK	298	static inline void sysfs_remove_files(struct kobject *kobj,
	299	const struct attribute **attr)
	300	{
	301	}
	302
59f69015	303	static inline int sysfs_create_bin_file(struct kobject *kobj,
66ecb92b	304	const struct bin_attribute *attr)
1da177e4 LT	305	{
	306	return 0;
	307	}
	308
3612e06b	309	static inline void sysfs_remove_bin_file(struct kobject *kobj,
66ecb92b	310	const struct bin_attribute *attr)
1da177e4	311	{
1da177e4 LT	312	}
1da177e4 LT	313
59f69015 TH	314	static inline int sysfs_create_link(struct kobject *kobj,
59f69015 TH	315	struct kobject target, const char name)
1da177e4 LT	316	{
	317	return 0;
	318	}
	319
36ce6dad CH	320	static inline int sysfs_create_link_nowarn(struct kobject *kobj,
	321	struct kobject *target,
	322	const char *name)
	323	{
	324	return 0;
	325	}
	326
59f69015	327	static inline void sysfs_remove_link(struct kobject kobj, const char name)
1da177e4	328	{
1da177e4 LT	329	}
1da177e4 LT	330
7cb32942 EB	331	static inline int sysfs_rename_link(struct kobject k, struct kobject t,
	332	const char old_name, const char new_name)
	333	{
	334	return 0;
	335	}
	336
746edb7a EB	337	static inline void sysfs_delete_link(struct kobject k, struct kobject t,
	338	const char *name)
	339	{
	340	}
	341
59f69015 TH	342	static inline int sysfs_create_group(struct kobject *kobj,
59f69015 TH	343	const struct attribute_group *grp)
1da177e4 LT	344	{
	345	return 0;
	346	}
	347
1cbfb7a5 RD	348	static inline int sysfs_update_group(struct kobject *kobj,
	349	const struct attribute_group *grp)
	350	{
	351	return 0;
	352	}
	353
59f69015 TH	354	static inline void sysfs_remove_group(struct kobject *kobj,
59f69015 TH	355	const struct attribute_group *grp)
1da177e4	356	{
1da177e4 LT	357	}
1da177e4 LT	358
dfa87c82 AS	359	static inline int sysfs_add_file_to_group(struct kobject *kobj,
	360	const struct attribute attr, const char group)
	361	{
	362	return 0;
	363	}
	364
	365	static inline void sysfs_remove_file_from_group(struct kobject *kobj,
d701d8a3	366	const struct attribute attr, const char group)
dfa87c82	367	{
dfa87c82 AS	368	}
dfa87c82 AS	369
69d44ffb AS	370	static inline int sysfs_merge_group(struct kobject *kobj,
	371	const struct attribute_group *grp)
	372	{
	373	return 0;
	374	}
	375
	376	static inline void sysfs_unmerge_group(struct kobject *kobj,
	377	const struct attribute_group *grp)
	378	{
	379	}
	380
0bb8f3d6 RW	381	static inline int sysfs_add_link_to_group(struct kobject *kobj,
	382	const char group_name, struct kobject target,
	383	const char *link_name)
	384	{
	385	return 0;
	386	}
	387
	388	static inline void sysfs_remove_link_from_group(struct kobject *kobj,
	389	const char group_name, const char link_name)
	390	{
	391	}
	392
8c0e3998 TP	393	static inline void sysfs_notify(struct kobject kobj, const char dir,
8c0e3998 TP	394	const char *attr)
4508a7a7 N	395	{
4508a7a7 N	396	}
f1282c84 NB	397	static inline void sysfs_notify_dirent(struct sysfs_dirent *sd)
	398	{
	399	}
	400	static inline
	401	struct sysfs_dirent sysfs_get_dirent(struct sysfs_dirent parent_sd,
3ff195b0	402	const void *ns,
f1282c84 NB	403	const unsigned char *name)
	404	{
	405	return NULL;
	406	}
	407	static inline struct sysfs_dirent sysfs_get(struct sysfs_dirent sd)
	408	{
	409	return NULL;
	410	}
	411	static inline void sysfs_put(struct sysfs_dirent *sd)
	412	{
	413	}
4508a7a7	414
f20a9ead AM	415	static inline int __must_check sysfs_init(void)
	416	{
	417	return 0;
	418	}
	419
1da177e4 LT	420	#endif /* CONFIG_SYSFS */
	421
	422	#endif /* _SYSFS_H_ */