[mirror_ubuntu-zesty-kernel.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/kernfs.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 = VERIFY_OCTAL_PERMISSIONS(_mode) },		\
	.show	= _show,						\
	.store	= _store,						\
}

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

#define __ATTR_WO(_name) {						\
	.attr	= { .name = __stringify(_name), .mode = S_IWUSR },	\
	.store	= _name##_store,					\
}

#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);
};

#ifdef CONFIG_SYSFS

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

int __must_check sysfs_create_dir_ns(struct kobject *kobj, const void *ns);
void sysfs_remove_dir(struct kobject *kobj);
int __must_check sysfs_rename_dir_ns(struct kobject *kobj, const char *new_name,
				     const void *new_ns);
int __must_check sysfs_move_dir_ns(struct kobject *kobj,
				   struct kobject *new_parent_kobj,
				   const void *new_ns);

int __must_check sysfs_create_file_ns(struct kobject *kobj,
				      const struct attribute *attr,
				      const void *ns);
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_ns(struct kobject *kobj, const struct attribute *attr,
			  const void *ns);
bool sysfs_remove_file_self(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_ns(struct kobject *kobj, struct kobject *target,
			 const char *old_name, const char *new_name,
			 const void *new_ns);

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);

int __must_check sysfs_init(void);

static inline void sysfs_enable_ns(struct kernfs_node *kn)
{
	return kernfs_enable_ns(kn);
}

#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_ns(struct kobject *kobj, const void *ns)
{
	return 0;
}

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

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

static inline int sysfs_move_dir_ns(struct kobject *kobj,
				    struct kobject *new_parent_kobj,
				    const void *new_ns)
{
	return 0;
}

static inline int sysfs_create_file_ns(struct kobject *kobj,
				       const struct attribute *attr,
				       const void *ns)
{
	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_ns(struct kobject *kobj,
					const struct attribute *attr,
					const void *ns)
{
}

static inline bool sysfs_remove_file_self(struct kobject *kobj,
					  const struct attribute *attr)
{
	return false;
}

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_ns(struct kobject *k, struct kobject *t,
				       const char *old_name,
				       const char *new_name, const void *ns)
{
	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_create_groups(struct kobject *kobj,
				      const struct attribute_group **groups)
{
	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 void sysfs_remove_groups(struct kobject *kobj,
				       const struct attribute_group **groups)
{
}

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 int __must_check sysfs_init(void)
{
	return 0;
}

static inline void sysfs_enable_ns(struct kernfs_node *kn)
{
}

#endif /* CONFIG_SYSFS */

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

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

static inline int sysfs_rename_link(struct kobject *kobj, struct kobject *target,
				    const char *old_name, const char *new_name)
{
	return sysfs_rename_link_ns(kobj, target, old_name, new_name, NULL);
}

static inline void sysfs_notify_dirent(struct kernfs_node *kn)
{
	kernfs_notify(kn);
}

static inline struct kernfs_node *sysfs_get_dirent(struct kernfs_node *parent,
						   const unsigned char *name)
{
	return kernfs_find_and_get(parent, name);
}

static inline struct kernfs_node *sysfs_get(struct kernfs_node *kn)
{
	kernfs_get(kn);
	return kn;
}

static inline void sysfs_put(struct kernfs_node *kn)
{
	kernfs_put(kn);
}

#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
b8441ed2	15	#include <linux/kernfs.h>
4a7fb636	16	#include <linux/compiler.h>
5851fadc	17	#include <linux/errno.h>
bf0acc33	18	#include <linux/list.h>
6992f533	19	#include <linux/lockdep.h>
8488a38f	20	#include <linux/kobject_ns.h>
3493f69f	21	#include <linux/stat.h>
60063497	22	#include <linux/atomic.h>
1da177e4 LT	23
	24	struct kobject;
	25	struct module;
6ab9cea1	26	struct bin_attribute;
3ff195b0	27	enum kobj_ns_type;
1da177e4 LT	28
1da177e4 LT	29	struct attribute {
59f69015	30	const char *name;
9104e427	31	umode_t mode;
6992f533	32	#ifdef CONFIG_DEBUG_LOCK_ALLOC
356c05d5	33	bool ignore_lockdep:1;
6992f533 EB	34	struct lock_class_key *key;
	35	struct lock_class_key skey;
	36	#endif
1da177e4 LT	37	};
1da177e4 LT	38
35960258 EB	39	/**
	40	* sysfs_attr_init - initialize a dynamically allocated sysfs attribute
	41	* @attr: struct attribute to initialize
	42	*
	43	* Initialize a dynamically allocated struct attribute so we can
	44	* make lockdep happy. This is a new requirement for attributes
	45	* and initially this is only needed when lockdep is enabled.
	46	* Lockdep gives a nice error when your attribute is added to
	47	* sysfs if you don't have this.
	48	*/
6992f533 EB	49	#ifdef CONFIG_DEBUG_LOCK_ALLOC
	50	#define sysfs_attr_init(attr) \
	51	do { \
	52	static struct lock_class_key __key; \
	53	\
	54	(attr)->key = &__key; \
5da5c9c8	55	} while (0)
6992f533	56	#else
5da5c9c8	57	#define sysfs_attr_init(attr) do {} while (0)
6992f533 EB	58	#endif
6992f533 EB	59
1da177e4	60	struct attribute_group {
59f69015	61	const char *name;
587a1f16	62	umode_t (is_visible)(struct kobject ,
d4acd722	63	struct attribute *, int);
59f69015	64	struct attribute **attrs;
6ab9cea1	65	struct bin_attribute **bin_attrs;
1da177e4 LT	66	};
1da177e4 LT	67
1da177e4 LT	68	/**
	69	* Use these macros to make defining attributes easier. See include/linux/device.h
	70	* for examples..
	71	*/
	72
5da5c9c8	73	#define __ATTR(_name, _mode, _show, _store) { \
58f86cc8 RR	74	.attr = {.name = __stringify(_name), \
58f86cc8 RR	75	.mode = VERIFY_OCTAL_PERMISSIONS(_mode) }, \
aa01aa3c OS	76	.show = _show, \
aa01aa3c OS	77	.store = _store, \
1da177e4 LT	78	}
1da177e4 LT	79
aa01aa3c OS	80	#define __ATTR_RO(_name) { \
	81	.attr = { .name = __stringify(_name), .mode = S_IRUGO }, \
	82	.show = _name##_show, \
1da177e4 LT	83	}
1da177e4 LT	84
a65fcce7 GKH	85	#define __ATTR_WO(_name) { \
	86	.attr = { .name = __stringify(_name), .mode = S_IWUSR }, \
	87	.store = _name##_store, \
	88	}
	89
aa01aa3c OS	90	#define __ATTR_RW(_name) __ATTR(_name, (S_IWUSR \| S_IRUGO), \
aa01aa3c OS	91	_name##_show, _name##_store)
b9b32597	92
1da177e4	93	#define __ATTR_NULL { .attr = { .name = NULL } }
356c05d5 AS	94
	95	#ifdef CONFIG_DEBUG_LOCK_ALLOC
	96	#define __ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) { \
	97	.attr = {.name = __stringify(_name), .mode = _mode, \
	98	.ignore_lockdep = true }, \
	99	.show = _show, \
	100	.store = _store, \
	101	}
	102	#else
	103	#define __ATTR_IGNORE_LOCKDEP __ATTR
	104	#endif
1da177e4	105
3493f69f OS	106	#define __ATTRIBUTE_GROUPS(_name) \
	107	static const struct attribute_group *_name##_groups[] = { \
	108	&_name##_group, \
f2f37f58 GKH	109	NULL, \
	110	}
	111
3493f69f OS	112	#define ATTRIBUTE_GROUPS(_name) \
	113	static const struct attribute_group _name##_group = { \
	114	.attrs = _name##_attrs, \
	115	}; \
	116	__ATTRIBUTE_GROUPS(_name)
	117
2c3c8bea	118	struct file;
1da177e4 LT	119	struct vm_area_struct;
	120
	121	struct bin_attribute {
	122	struct attribute attr;
	123	size_t size;
	124	void *private;
2c3c8bea	125	ssize_t (read)(struct file , struct kobject , struct bin_attribute ,
91a69029	126	char *, loff_t, size_t);
5da5c9c8	127	ssize_t (write)(struct file , struct kobject , struct bin_attribute ,
91a69029	128	char *, loff_t, size_t);
2c3c8bea	129	int (mmap)(struct file , struct kobject , struct bin_attribute attr,
1da177e4 LT	130	struct vm_area_struct *vma);
	131	};
	132
35960258 EB	133	/**
	134	* sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute
	135	* @attr: struct bin_attribute to initialize
	136	*
	137	* Initialize a dynamically allocated struct bin_attribute so we
	138	* can make lockdep happy. This is a new requirement for
	139	* attributes and initially this is only needed when lockdep is
	140	* enabled. Lockdep gives a nice error when your attribute is
	141	* added to sysfs if you don't have this.
	142	*/
62e877b8	143	#define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr)
6992f533	144
3493f69f OS	145	/* macros to create static binary attributes easier */
	146	#define __BIN_ATTR(_name, _mode, _read, _write, _size) { \
	147	.attr = { .name = __stringify(_name), .mode = _mode }, \
	148	.read = _read, \
	149	.write = _write, \
	150	.size = _size, \
	151	}
	152
	153	#define __BIN_ATTR_RO(_name, _size) { \
	154	.attr = { .name = __stringify(_name), .mode = S_IRUGO }, \
	155	.read = _name##_read, \
	156	.size = _size, \
e4b63603 GKH	157	}
e4b63603 GKH	158
3493f69f OS	159	#define __BIN_ATTR_RW(_name, _size) __BIN_ATTR(_name, \
3493f69f OS	160	(S_IWUSR \| S_IRUGO), _name##_read, \
68531526	161	_name##_write, _size)
3493f69f OS	162
	163	#define __BIN_ATTR_NULL __ATTR_NULL
	164
	165	#define BIN_ATTR(_name, _mode, _read, _write, _size) \
	166	struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \
	167	_write, _size)
	168
	169	#define BIN_ATTR_RO(_name, _size) \
	170	struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size)
	171
	172	#define BIN_ATTR_RW(_name, _size) \
	173	struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size)
	174
1da177e4	175	struct sysfs_ops {
5da5c9c8 GKH	176	ssize_t (show)(struct kobject , struct attribute , char );
5da5c9c8 GKH	177	ssize_t (store)(struct kobject , struct attribute , const char , size_t);
1da177e4 LT	178	};
1da177e4 LT	179
1da177e4 LT	180	#ifdef CONFIG_SYSFS
1da177e4 LT	181
72099304 GKH	182	int sysfs_schedule_callback(struct kobject kobj, void (func)(void *),
	183	void data, struct module owner);
	184
e34ff490	185	int __must_check sysfs_create_dir_ns(struct kobject kobj, const void ns);
59f69015	186	void sysfs_remove_dir(struct kobject *kobj);
e34ff490 TH	187	int __must_check sysfs_rename_dir_ns(struct kobject kobj, const char new_name,
	188	const void *new_ns);
	189	int __must_check sysfs_move_dir_ns(struct kobject *kobj,
	190	struct kobject *new_parent_kobj,
	191	const void *new_ns);
31e5abe9	192
58292cbe TH	193	int __must_check sysfs_create_file_ns(struct kobject *kobj,
	194	const struct attribute *attr,
	195	const void *ns);
1c205ae1 AK	196	int __must_check sysfs_create_files(struct kobject *kobj,
1c205ae1 AK	197	const struct attribute **attr);
49c19400	198	int __must_check sysfs_chmod_file(struct kobject *kobj,
48176a97	199	const struct attribute *attr, umode_t mode);
58292cbe TH	200	void sysfs_remove_file_ns(struct kobject kobj, const struct attribute attr,
58292cbe TH	201	const void *ns);
6b0afc2a	202	bool sysfs_remove_file_self(struct kobject kobj, const struct attribute attr);
1c205ae1	203	void sysfs_remove_files(struct kobject kobj, const struct attribute *attr);
1da177e4	204
4a7fb636	205	int __must_check sysfs_create_bin_file(struct kobject *kobj,
66ecb92b PC	206	const struct bin_attribute *attr);
	207	void sysfs_remove_bin_file(struct kobject *kobj,
	208	const struct bin_attribute *attr);
1da177e4	209
59f69015 TH	210	int __must_check sysfs_create_link(struct kobject kobj, struct kobject target,
59f69015 TH	211	const char *name);
36ce6dad CH	212	int __must_check sysfs_create_link_nowarn(struct kobject *kobj,
	213	struct kobject *target,
	214	const char *name);
59f69015 TH	215	void sysfs_remove_link(struct kobject kobj, const char name);
59f69015 TH	216
4b30ee58 TH	217	int sysfs_rename_link_ns(struct kobject kobj, struct kobject target,
	218	const char old_name, const char new_name,
	219	const void *new_ns);
7cb32942	220
746edb7a EB	221	void sysfs_delete_link(struct kobject dir, struct kobject targ,
	222	const char *name);
	223
59f69015 TH	224	int __must_check sysfs_create_group(struct kobject *kobj,
59f69015 TH	225	const struct attribute_group *grp);
3e9b2bae GKH	226	int __must_check sysfs_create_groups(struct kobject *kobj,
3e9b2bae GKH	227	const struct attribute_group **groups);
0f423895 JB	228	int sysfs_update_group(struct kobject *kobj,
0f423895 JB	229	const struct attribute_group *grp);
59f69015 TH	230	void sysfs_remove_group(struct kobject *kobj,
59f69015 TH	231	const struct attribute_group *grp);
3e9b2bae GKH	232	void sysfs_remove_groups(struct kobject *kobj,
3e9b2bae GKH	233	const struct attribute_group **groups);
dfa87c82	234	int sysfs_add_file_to_group(struct kobject *kobj,
59f69015	235	const struct attribute attr, const char group);
dfa87c82	236	void sysfs_remove_file_from_group(struct kobject *kobj,
59f69015	237	const struct attribute attr, const char group);
69d44ffb AS	238	int sysfs_merge_group(struct kobject *kobj,
	239	const struct attribute_group *grp);
	240	void sysfs_unmerge_group(struct kobject *kobj,
	241	const struct attribute_group *grp);
0bb8f3d6 RW	242	int sysfs_add_link_to_group(struct kobject kobj, const char group_name,
	243	struct kobject target, const char link_name);
	244	void sysfs_remove_link_from_group(struct kobject kobj, const char group_name,
	245	const char *link_name);
dfa87c82	246
8c0e3998	247	void sysfs_notify(struct kobject kobj, const char dir, const char *attr);
3ff195b0	248
f1282c84	249	int __must_check sysfs_init(void);
f20a9ead	250
fa4cd451 TH	251	static inline void sysfs_enable_ns(struct kernfs_node *kn)
	252	{
	253	return kernfs_enable_ns(kn);
	254	}
	255
1da177e4 LT	256	#else /* CONFIG_SYSFS */
1da177e4 LT	257
72099304 GKH	258	static inline int sysfs_schedule_callback(struct kobject *kobj,
	259	void (func)(void ), void data, struct module owner)
	260	{
	261	return -ENOSYS;
	262	}
	263
e34ff490	264	static inline int sysfs_create_dir_ns(struct kobject kobj, const void ns)
1da177e4 LT	265	{
	266	return 0;
	267	}
	268
59f69015	269	static inline void sysfs_remove_dir(struct kobject *kobj)
1da177e4	270	{
1da177e4 LT	271	}
1da177e4 LT	272
e34ff490 TH	273	static inline int sysfs_rename_dir_ns(struct kobject *kobj,
e34ff490 TH	274	const char new_name, const void new_ns)
1da177e4	275	{
0b4a4fea	276	return 0;
1da177e4 LT	277	}
1da177e4 LT	278
e34ff490 TH	279	static inline int sysfs_move_dir_ns(struct kobject *kobj,
	280	struct kobject *new_parent_kobj,
	281	const void *new_ns)
8a82472f CH	282	{
	283	return 0;
	284	}
	285
58292cbe TH	286	static inline int sysfs_create_file_ns(struct kobject *kobj,
	287	const struct attribute *attr,
	288	const void *ns)
1da177e4 LT	289	{
	290	return 0;
	291	}
	292
1c205ae1 AK	293	static inline int sysfs_create_files(struct kobject *kobj,
	294	const struct attribute **attr)
	295	{
	296	return 0;
	297	}
	298
59f69015	299	static inline int sysfs_chmod_file(struct kobject *kobj,
48176a97	300	const struct attribute *attr, umode_t mode)
31e5abe9 KS	301	{
	302	return 0;
	303	}
1da177e4	304
58292cbe TH	305	static inline void sysfs_remove_file_ns(struct kobject *kobj,
	306	const struct attribute *attr,
	307	const void *ns)
1da177e4	308	{
1da177e4 LT	309	}
1da177e4 LT	310
6b0afc2a TH	311	static inline bool sysfs_remove_file_self(struct kobject *kobj,
	312	const struct attribute *attr)
	313	{
	314	return false;
	315	}
	316
1c205ae1 AK	317	static inline void sysfs_remove_files(struct kobject *kobj,
	318	const struct attribute **attr)
	319	{
	320	}
	321
59f69015	322	static inline int sysfs_create_bin_file(struct kobject *kobj,
66ecb92b	323	const struct bin_attribute *attr)
1da177e4 LT	324	{
	325	return 0;
	326	}
	327
3612e06b	328	static inline void sysfs_remove_bin_file(struct kobject *kobj,
66ecb92b	329	const struct bin_attribute *attr)
1da177e4	330	{
1da177e4 LT	331	}
1da177e4 LT	332
59f69015 TH	333	static inline int sysfs_create_link(struct kobject *kobj,
59f69015 TH	334	struct kobject target, const char name)
1da177e4 LT	335	{
	336	return 0;
	337	}
	338
36ce6dad CH	339	static inline int sysfs_create_link_nowarn(struct kobject *kobj,
	340	struct kobject *target,
	341	const char *name)
	342	{
	343	return 0;
	344	}
	345
59f69015	346	static inline void sysfs_remove_link(struct kobject kobj, const char name)
1da177e4	347	{
1da177e4 LT	348	}
1da177e4 LT	349
4b30ee58 TH	350	static inline int sysfs_rename_link_ns(struct kobject k, struct kobject t,
	351	const char *old_name,
	352	const char new_name, const void ns)
7cb32942 EB	353	{
	354	return 0;
	355	}
	356
746edb7a EB	357	static inline void sysfs_delete_link(struct kobject k, struct kobject t,
	358	const char *name)
	359	{
	360	}
	361
59f69015 TH	362	static inline int sysfs_create_group(struct kobject *kobj,
59f69015 TH	363	const struct attribute_group *grp)
1da177e4 LT	364	{
	365	return 0;
	366	}
	367
f7998780 GKH	368	static inline int sysfs_create_groups(struct kobject *kobj,
	369	const struct attribute_group **groups)
	370	{
574979c6	371	return 0;
f7998780 GKH	372	}
f7998780 GKH	373
1cbfb7a5 RD	374	static inline int sysfs_update_group(struct kobject *kobj,
	375	const struct attribute_group *grp)
	376	{
	377	return 0;
	378	}
	379
59f69015 TH	380	static inline void sysfs_remove_group(struct kobject *kobj,
59f69015 TH	381	const struct attribute_group *grp)
1da177e4	382	{
1da177e4 LT	383	}
1da177e4 LT	384
f7998780 GKH	385	static inline void sysfs_remove_groups(struct kobject *kobj,
	386	const struct attribute_group **groups)
	387	{
	388	}
	389
dfa87c82 AS	390	static inline int sysfs_add_file_to_group(struct kobject *kobj,
	391	const struct attribute attr, const char group)
	392	{
	393	return 0;
	394	}
	395
	396	static inline void sysfs_remove_file_from_group(struct kobject *kobj,
d701d8a3	397	const struct attribute attr, const char group)
dfa87c82	398	{
dfa87c82 AS	399	}
dfa87c82 AS	400
69d44ffb AS	401	static inline int sysfs_merge_group(struct kobject *kobj,
	402	const struct attribute_group *grp)
	403	{
	404	return 0;
	405	}
	406
	407	static inline void sysfs_unmerge_group(struct kobject *kobj,
	408	const struct attribute_group *grp)
	409	{
	410	}
	411
0bb8f3d6 RW	412	static inline int sysfs_add_link_to_group(struct kobject *kobj,
	413	const char group_name, struct kobject target,
	414	const char *link_name)
	415	{
	416	return 0;
	417	}
	418
	419	static inline void sysfs_remove_link_from_group(struct kobject *kobj,
	420	const char group_name, const char link_name)
	421	{
	422	}
	423
8c0e3998 TP	424	static inline void sysfs_notify(struct kobject kobj, const char dir,
8c0e3998 TP	425	const char *attr)
4508a7a7 N	426	{
	427	}
	428
f20a9ead AM	429	static inline int __must_check sysfs_init(void)
	430	{
	431	return 0;
	432	}
	433
fa4cd451 TH	434	static inline void sysfs_enable_ns(struct kernfs_node *kn)
	435	{
	436	}
	437
1da177e4 LT	438	#endif /* CONFIG_SYSFS */
1da177e4 LT	439
58292cbe TH	440	static inline int __must_check sysfs_create_file(struct kobject *kobj,
	441	const struct attribute *attr)
	442	{
	443	return sysfs_create_file_ns(kobj, attr, NULL);
	444	}
	445
	446	static inline void sysfs_remove_file(struct kobject *kobj,
	447	const struct attribute *attr)
	448	{
	449	return sysfs_remove_file_ns(kobj, attr, NULL);
	450	}
	451
4b30ee58 TH	452	static inline int sysfs_rename_link(struct kobject kobj, struct kobject target,
	453	const char old_name, const char new_name)
	454	{
	455	return sysfs_rename_link_ns(kobj, target, old_name, new_name, NULL);
	456	}
	457
324a56e1	458	static inline void sysfs_notify_dirent(struct kernfs_node *kn)
ccf73cf3	459	{
324a56e1	460	kernfs_notify(kn);
ccf73cf3 TH	461	}
ccf73cf3 TH	462
324a56e1 TH	463	static inline struct kernfs_node sysfs_get_dirent(struct kernfs_node parent,
324a56e1 TH	464	const unsigned char *name)
388975cc	465	{
324a56e1	466	return kernfs_find_and_get(parent, name);
388975cc TH	467	}
388975cc TH	468
324a56e1	469	static inline struct kernfs_node sysfs_get(struct kernfs_node kn)
024f6471	470	{
324a56e1 TH	471	kernfs_get(kn);
324a56e1 TH	472	return kn;
ccf73cf3 TH	473	}
ccf73cf3 TH	474
324a56e1	475	static inline void sysfs_put(struct kernfs_node *kn)
ccf73cf3	476	{
324a56e1	477	kernfs_put(kn);
024f6471 TH	478	}
024f6471 TH	479
1da177e4	480	#endif /* _SYSFS_H_ */