Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | /* |
3 | * sysfs.h - definitions for the device driver filesystem | |
4 | * | |
5 | * Copyright (c) 2001,2002 Patrick Mochel | |
6 | * Copyright (c) 2004 Silicon Graphics, Inc. | |
6d66f5cd TH |
7 | * Copyright (c) 2007 SUSE Linux Products GmbH |
8 | * Copyright (c) 2007 Tejun Heo <teheo@suse.de> | |
1da177e4 | 9 | * |
0c1bc6b8 | 10 | * Please see Documentation/filesystems/sysfs.rst for more information. |
1da177e4 LT |
11 | */ |
12 | ||
13 | #ifndef _SYSFS_H_ | |
14 | #define _SYSFS_H_ | |
15 | ||
b8441ed2 | 16 | #include <linux/kernfs.h> |
4a7fb636 | 17 | #include <linux/compiler.h> |
5851fadc | 18 | #include <linux/errno.h> |
bf0acc33 | 19 | #include <linux/list.h> |
6992f533 | 20 | #include <linux/lockdep.h> |
8488a38f | 21 | #include <linux/kobject_ns.h> |
3493f69f | 22 | #include <linux/stat.h> |
60063497 | 23 | #include <linux/atomic.h> |
1da177e4 LT |
24 | |
25 | struct kobject; | |
26 | struct module; | |
6ab9cea1 | 27 | struct bin_attribute; |
3ff195b0 | 28 | enum kobj_ns_type; |
1da177e4 LT |
29 | |
30 | struct attribute { | |
59f69015 | 31 | const char *name; |
9104e427 | 32 | umode_t mode; |
6992f533 | 33 | #ifdef CONFIG_DEBUG_LOCK_ALLOC |
356c05d5 | 34 | bool ignore_lockdep:1; |
6992f533 EB |
35 | struct lock_class_key *key; |
36 | struct lock_class_key skey; | |
37 | #endif | |
1da177e4 LT |
38 | }; |
39 | ||
35960258 EB |
40 | /** |
41 | * sysfs_attr_init - initialize a dynamically allocated sysfs attribute | |
42 | * @attr: struct attribute to initialize | |
43 | * | |
44 | * Initialize a dynamically allocated struct attribute so we can | |
45 | * make lockdep happy. This is a new requirement for attributes | |
46 | * and initially this is only needed when lockdep is enabled. | |
47 | * Lockdep gives a nice error when your attribute is added to | |
48 | * sysfs if you don't have this. | |
49 | */ | |
6992f533 EB |
50 | #ifdef CONFIG_DEBUG_LOCK_ALLOC |
51 | #define sysfs_attr_init(attr) \ | |
52 | do { \ | |
53 | static struct lock_class_key __key; \ | |
54 | \ | |
55 | (attr)->key = &__key; \ | |
5da5c9c8 | 56 | } while (0) |
6992f533 | 57 | #else |
5da5c9c8 | 58 | #define sysfs_attr_init(attr) do {} while (0) |
6992f533 EB |
59 | #endif |
60 | ||
ba61af6f GR |
61 | /** |
62 | * struct attribute_group - data structure used to declare an attribute group. | |
63 | * @name: Optional: Attribute group name | |
64 | * If specified, the attribute group will be created in | |
65 | * a new subdirectory with this name. | |
66 | * @is_visible: Optional: Function to return permissions associated with an | |
67 | * attribute of the group. Will be called repeatedly for each | |
7f5028cf EL |
68 | * non-binary attribute in the group. Only read/write |
69 | * permissions as well as SYSFS_PREALLOC are accepted. Must | |
70 | * return 0 if an attribute is not visible. The returned value | |
71 | * will replace static permissions defined in struct attribute. | |
72 | * @is_bin_visible: | |
73 | * Optional: Function to return permissions associated with a | |
74 | * binary attribute of the group. Will be called repeatedly | |
75 | * for each binary attribute in the group. Only read/write | |
76 | * permissions as well as SYSFS_PREALLOC are accepted. Must | |
77 | * return 0 if a binary attribute is not visible. The returned | |
78 | * value will replace static permissions defined in | |
79 | * struct bin_attribute. | |
ba61af6f GR |
80 | * @attrs: Pointer to NULL terminated list of attributes. |
81 | * @bin_attrs: Pointer to NULL terminated list of binary attributes. | |
82 | * Either attrs or bin_attrs or both must be provided. | |
83 | */ | |
1da177e4 | 84 | struct attribute_group { |
59f69015 | 85 | const char *name; |
587a1f16 | 86 | umode_t (*is_visible)(struct kobject *, |
d4acd722 | 87 | struct attribute *, int); |
7f5028cf EL |
88 | umode_t (*is_bin_visible)(struct kobject *, |
89 | struct bin_attribute *, int); | |
59f69015 | 90 | struct attribute **attrs; |
6ab9cea1 | 91 | struct bin_attribute **bin_attrs; |
1da177e4 LT |
92 | }; |
93 | ||
3ec78790 RD |
94 | /* |
95 | * Use these macros to make defining attributes easier. | |
96 | * See include/linux/device.h for examples.. | |
1da177e4 LT |
97 | */ |
98 | ||
2b75869b N |
99 | #define SYSFS_PREALLOC 010000 |
100 | ||
5da5c9c8 | 101 | #define __ATTR(_name, _mode, _show, _store) { \ |
58f86cc8 RR |
102 | .attr = {.name = __stringify(_name), \ |
103 | .mode = VERIFY_OCTAL_PERMISSIONS(_mode) }, \ | |
aa01aa3c OS |
104 | .show = _show, \ |
105 | .store = _store, \ | |
1da177e4 LT |
106 | } |
107 | ||
2b75869b N |
108 | #define __ATTR_PREALLOC(_name, _mode, _show, _store) { \ |
109 | .attr = {.name = __stringify(_name), \ | |
110 | .mode = SYSFS_PREALLOC | VERIFY_OCTAL_PERMISSIONS(_mode) },\ | |
111 | .show = _show, \ | |
112 | .store = _store, \ | |
113 | } | |
114 | ||
aa01aa3c | 115 | #define __ATTR_RO(_name) { \ |
353c6dda | 116 | .attr = { .name = __stringify(_name), .mode = 0444 }, \ |
aa01aa3c | 117 | .show = _name##_show, \ |
1da177e4 LT |
118 | } |
119 | ||
af97a77b GKH |
120 | #define __ATTR_RO_MODE(_name, _mode) { \ |
121 | .attr = { .name = __stringify(_name), \ | |
122 | .mode = VERIFY_OCTAL_PERMISSIONS(_mode) }, \ | |
123 | .show = _name##_show, \ | |
124 | } | |
125 | ||
3022c6a1 DW |
126 | #define __ATTR_RW_MODE(_name, _mode) { \ |
127 | .attr = { .name = __stringify(_name), \ | |
128 | .mode = VERIFY_OCTAL_PERMISSIONS(_mode) }, \ | |
129 | .show = _name##_show, \ | |
130 | .store = _name##_store, \ | |
131 | } | |
132 | ||
a65fcce7 | 133 | #define __ATTR_WO(_name) { \ |
353c6dda | 134 | .attr = { .name = __stringify(_name), .mode = 0200 }, \ |
a65fcce7 GKH |
135 | .store = _name##_store, \ |
136 | } | |
137 | ||
353c6dda | 138 | #define __ATTR_RW(_name) __ATTR(_name, 0644, _name##_show, _name##_store) |
b9b32597 | 139 | |
1da177e4 | 140 | #define __ATTR_NULL { .attr = { .name = NULL } } |
356c05d5 AS |
141 | |
142 | #ifdef CONFIG_DEBUG_LOCK_ALLOC | |
143 | #define __ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) { \ | |
144 | .attr = {.name = __stringify(_name), .mode = _mode, \ | |
145 | .ignore_lockdep = true }, \ | |
146 | .show = _show, \ | |
147 | .store = _store, \ | |
148 | } | |
149 | #else | |
150 | #define __ATTR_IGNORE_LOCKDEP __ATTR | |
151 | #endif | |
1da177e4 | 152 | |
3493f69f OS |
153 | #define __ATTRIBUTE_GROUPS(_name) \ |
154 | static const struct attribute_group *_name##_groups[] = { \ | |
155 | &_name##_group, \ | |
f2f37f58 GKH |
156 | NULL, \ |
157 | } | |
158 | ||
3493f69f OS |
159 | #define ATTRIBUTE_GROUPS(_name) \ |
160 | static const struct attribute_group _name##_group = { \ | |
161 | .attrs = _name##_attrs, \ | |
162 | }; \ | |
163 | __ATTRIBUTE_GROUPS(_name) | |
164 | ||
46ad0572 HK |
165 | #define BIN_ATTRIBUTE_GROUPS(_name) \ |
166 | static const struct attribute_group _name##_group = { \ | |
167 | .bin_attrs = _name##_attrs, \ | |
168 | }; \ | |
169 | __ATTRIBUTE_GROUPS(_name) | |
170 | ||
2c3c8bea | 171 | struct file; |
1da177e4 | 172 | struct vm_area_struct; |
74b30195 | 173 | struct address_space; |
1da177e4 LT |
174 | |
175 | struct bin_attribute { | |
176 | struct attribute attr; | |
177 | size_t size; | |
178 | void *private; | |
f06aff92 | 179 | struct address_space *(*f_mapping)(void); |
2c3c8bea | 180 | ssize_t (*read)(struct file *, struct kobject *, struct bin_attribute *, |
91a69029 | 181 | char *, loff_t, size_t); |
5da5c9c8 | 182 | ssize_t (*write)(struct file *, struct kobject *, struct bin_attribute *, |
91a69029 | 183 | char *, loff_t, size_t); |
0fedefd4 VS |
184 | loff_t (*llseek)(struct file *, struct kobject *, struct bin_attribute *, |
185 | loff_t, int); | |
2c3c8bea | 186 | int (*mmap)(struct file *, struct kobject *, struct bin_attribute *attr, |
1da177e4 LT |
187 | struct vm_area_struct *vma); |
188 | }; | |
189 | ||
35960258 EB |
190 | /** |
191 | * sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute | |
192 | * @attr: struct bin_attribute to initialize | |
193 | * | |
194 | * Initialize a dynamically allocated struct bin_attribute so we | |
195 | * can make lockdep happy. This is a new requirement for | |
196 | * attributes and initially this is only needed when lockdep is | |
197 | * enabled. Lockdep gives a nice error when your attribute is | |
198 | * added to sysfs if you don't have this. | |
199 | */ | |
62e877b8 | 200 | #define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr) |
6992f533 | 201 | |
3493f69f OS |
202 | /* macros to create static binary attributes easier */ |
203 | #define __BIN_ATTR(_name, _mode, _read, _write, _size) { \ | |
204 | .attr = { .name = __stringify(_name), .mode = _mode }, \ | |
205 | .read = _read, \ | |
206 | .write = _write, \ | |
207 | .size = _size, \ | |
208 | } | |
209 | ||
210 | #define __BIN_ATTR_RO(_name, _size) { \ | |
353c6dda | 211 | .attr = { .name = __stringify(_name), .mode = 0444 }, \ |
3493f69f OS |
212 | .read = _name##_read, \ |
213 | .size = _size, \ | |
e4b63603 GKH |
214 | } |
215 | ||
82af5b66 | 216 | #define __BIN_ATTR_WO(_name, _size) { \ |
7f905761 | 217 | .attr = { .name = __stringify(_name), .mode = 0200 }, \ |
82af5b66 | 218 | .write = _name##_write, \ |
7f905761 GKH |
219 | .size = _size, \ |
220 | } | |
221 | ||
353c6dda JP |
222 | #define __BIN_ATTR_RW(_name, _size) \ |
223 | __BIN_ATTR(_name, 0644, _name##_read, _name##_write, _size) | |
3493f69f OS |
224 | |
225 | #define __BIN_ATTR_NULL __ATTR_NULL | |
226 | ||
227 | #define BIN_ATTR(_name, _mode, _read, _write, _size) \ | |
228 | struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \ | |
229 | _write, _size) | |
230 | ||
231 | #define BIN_ATTR_RO(_name, _size) \ | |
232 | struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size) | |
233 | ||
7f905761 GKH |
234 | #define BIN_ATTR_WO(_name, _size) \ |
235 | struct bin_attribute bin_attr_##_name = __BIN_ATTR_WO(_name, _size) | |
236 | ||
3493f69f OS |
237 | #define BIN_ATTR_RW(_name, _size) \ |
238 | struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size) | |
239 | ||
9d6794fe IW |
240 | |
241 | #define __BIN_ATTR_ADMIN_RO(_name, _size) { \ | |
242 | .attr = { .name = __stringify(_name), .mode = 0400 }, \ | |
243 | .read = _name##_read, \ | |
244 | .size = _size, \ | |
245 | } | |
246 | ||
247 | #define __BIN_ATTR_ADMIN_RW(_name, _size) \ | |
248 | __BIN_ATTR(_name, 0600, _name##_read, _name##_write, _size) | |
249 | ||
250 | #define BIN_ATTR_ADMIN_RO(_name, _size) \ | |
251 | struct bin_attribute bin_attr_##_name = __BIN_ATTR_ADMIN_RO(_name, _size) | |
252 | ||
253 | #define BIN_ATTR_ADMIN_RW(_name, _size) \ | |
254 | struct bin_attribute bin_attr_##_name = __BIN_ATTR_ADMIN_RW(_name, _size) | |
255 | ||
1da177e4 | 256 | struct sysfs_ops { |
5da5c9c8 GKH |
257 | ssize_t (*show)(struct kobject *, struct attribute *, char *); |
258 | ssize_t (*store)(struct kobject *, struct attribute *, const char *, size_t); | |
1da177e4 LT |
259 | }; |
260 | ||
1da177e4 LT |
261 | #ifdef CONFIG_SYSFS |
262 | ||
e34ff490 | 263 | int __must_check sysfs_create_dir_ns(struct kobject *kobj, const void *ns); |
59f69015 | 264 | void sysfs_remove_dir(struct kobject *kobj); |
e34ff490 TH |
265 | int __must_check sysfs_rename_dir_ns(struct kobject *kobj, const char *new_name, |
266 | const void *new_ns); | |
267 | int __must_check sysfs_move_dir_ns(struct kobject *kobj, | |
268 | struct kobject *new_parent_kobj, | |
269 | const void *new_ns); | |
87d2846f EB |
270 | int __must_check sysfs_create_mount_point(struct kobject *parent_kobj, |
271 | const char *name); | |
272 | void sysfs_remove_mount_point(struct kobject *parent_kobj, | |
273 | const char *name); | |
31e5abe9 | 274 | |
58292cbe TH |
275 | int __must_check sysfs_create_file_ns(struct kobject *kobj, |
276 | const struct attribute *attr, | |
277 | const void *ns); | |
1c205ae1 | 278 | int __must_check sysfs_create_files(struct kobject *kobj, |
9ee4685c | 279 | const struct attribute * const *attr); |
49c19400 | 280 | int __must_check sysfs_chmod_file(struct kobject *kobj, |
48176a97 | 281 | const struct attribute *attr, umode_t mode); |
2afc9166 BVA |
282 | struct kernfs_node *sysfs_break_active_protection(struct kobject *kobj, |
283 | const struct attribute *attr); | |
284 | void sysfs_unbreak_active_protection(struct kernfs_node *kn); | |
58292cbe TH |
285 | void sysfs_remove_file_ns(struct kobject *kobj, const struct attribute *attr, |
286 | const void *ns); | |
6b0afc2a | 287 | bool sysfs_remove_file_self(struct kobject *kobj, const struct attribute *attr); |
9ee4685c | 288 | void sysfs_remove_files(struct kobject *kobj, const struct attribute * const *attr); |
1da177e4 | 289 | |
4a7fb636 | 290 | int __must_check sysfs_create_bin_file(struct kobject *kobj, |
66ecb92b PC |
291 | const struct bin_attribute *attr); |
292 | void sysfs_remove_bin_file(struct kobject *kobj, | |
293 | const struct bin_attribute *attr); | |
1da177e4 | 294 | |
59f69015 TH |
295 | int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target, |
296 | const char *name); | |
36ce6dad CH |
297 | int __must_check sysfs_create_link_nowarn(struct kobject *kobj, |
298 | struct kobject *target, | |
299 | const char *name); | |
59f69015 TH |
300 | void sysfs_remove_link(struct kobject *kobj, const char *name); |
301 | ||
4b30ee58 TH |
302 | int sysfs_rename_link_ns(struct kobject *kobj, struct kobject *target, |
303 | const char *old_name, const char *new_name, | |
304 | const void *new_ns); | |
7cb32942 | 305 | |
746edb7a EB |
306 | void sysfs_delete_link(struct kobject *dir, struct kobject *targ, |
307 | const char *name); | |
308 | ||
59f69015 TH |
309 | int __must_check sysfs_create_group(struct kobject *kobj, |
310 | const struct attribute_group *grp); | |
3e9b2bae GKH |
311 | int __must_check sysfs_create_groups(struct kobject *kobj, |
312 | const struct attribute_group **groups); | |
aac1f7f9 JO |
313 | int __must_check sysfs_update_groups(struct kobject *kobj, |
314 | const struct attribute_group **groups); | |
0f423895 JB |
315 | int sysfs_update_group(struct kobject *kobj, |
316 | const struct attribute_group *grp); | |
59f69015 TH |
317 | void sysfs_remove_group(struct kobject *kobj, |
318 | const struct attribute_group *grp); | |
3e9b2bae GKH |
319 | void sysfs_remove_groups(struct kobject *kobj, |
320 | const struct attribute_group **groups); | |
dfa87c82 | 321 | int sysfs_add_file_to_group(struct kobject *kobj, |
59f69015 | 322 | const struct attribute *attr, const char *group); |
dfa87c82 | 323 | void sysfs_remove_file_from_group(struct kobject *kobj, |
59f69015 | 324 | const struct attribute *attr, const char *group); |
69d44ffb AS |
325 | int sysfs_merge_group(struct kobject *kobj, |
326 | const struct attribute_group *grp); | |
327 | void sysfs_unmerge_group(struct kobject *kobj, | |
328 | const struct attribute_group *grp); | |
0bb8f3d6 RW |
329 | int sysfs_add_link_to_group(struct kobject *kobj, const char *group_name, |
330 | struct kobject *target, const char *link_name); | |
331 | void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name, | |
332 | const char *link_name); | |
9255782f SJ |
333 | int compat_only_sysfs_link_entry_to_kobj(struct kobject *kobj, |
334 | struct kobject *target_kobj, | |
335 | const char *target_name, | |
336 | const char *symlink_name); | |
dfa87c82 | 337 | |
8c0e3998 | 338 | void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr); |
3ff195b0 | 339 | |
f1282c84 | 340 | int __must_check sysfs_init(void); |
f20a9ead | 341 | |
fa4cd451 TH |
342 | static inline void sysfs_enable_ns(struct kernfs_node *kn) |
343 | { | |
344 | return kernfs_enable_ns(kn); | |
345 | } | |
346 | ||
f70ce185 CB |
347 | int sysfs_file_change_owner(struct kobject *kobj, const char *name, kuid_t kuid, |
348 | kgid_t kgid); | |
2c4f9401 | 349 | int sysfs_change_owner(struct kobject *kobj, kuid_t kuid, kgid_t kgid); |
0666a3ae CB |
350 | int sysfs_link_change_owner(struct kobject *kobj, struct kobject *targ, |
351 | const char *name, kuid_t kuid, kgid_t kgid); | |
303a4276 CB |
352 | int sysfs_groups_change_owner(struct kobject *kobj, |
353 | const struct attribute_group **groups, | |
354 | kuid_t kuid, kgid_t kgid); | |
355 | int sysfs_group_change_owner(struct kobject *kobj, | |
356 | const struct attribute_group *groups, kuid_t kuid, | |
357 | kgid_t kgid); | |
2efc459d JP |
358 | __printf(2, 3) |
359 | int sysfs_emit(char *buf, const char *fmt, ...); | |
360 | __printf(3, 4) | |
361 | int sysfs_emit_at(char *buf, int at, const char *fmt, ...); | |
f70ce185 | 362 | |
1da177e4 LT |
363 | #else /* CONFIG_SYSFS */ |
364 | ||
e34ff490 | 365 | static inline int sysfs_create_dir_ns(struct kobject *kobj, const void *ns) |
1da177e4 LT |
366 | { |
367 | return 0; | |
368 | } | |
369 | ||
59f69015 | 370 | static inline void sysfs_remove_dir(struct kobject *kobj) |
1da177e4 | 371 | { |
1da177e4 LT |
372 | } |
373 | ||
e34ff490 TH |
374 | static inline int sysfs_rename_dir_ns(struct kobject *kobj, |
375 | const char *new_name, const void *new_ns) | |
1da177e4 | 376 | { |
0b4a4fea | 377 | return 0; |
1da177e4 LT |
378 | } |
379 | ||
e34ff490 TH |
380 | static inline int sysfs_move_dir_ns(struct kobject *kobj, |
381 | struct kobject *new_parent_kobj, | |
382 | const void *new_ns) | |
8a82472f CH |
383 | { |
384 | return 0; | |
385 | } | |
386 | ||
87d2846f EB |
387 | static inline int sysfs_create_mount_point(struct kobject *parent_kobj, |
388 | const char *name) | |
389 | { | |
390 | return 0; | |
391 | } | |
392 | ||
393 | static inline void sysfs_remove_mount_point(struct kobject *parent_kobj, | |
394 | const char *name) | |
395 | { | |
396 | } | |
397 | ||
58292cbe TH |
398 | static inline int sysfs_create_file_ns(struct kobject *kobj, |
399 | const struct attribute *attr, | |
400 | const void *ns) | |
1da177e4 LT |
401 | { |
402 | return 0; | |
403 | } | |
404 | ||
1c205ae1 | 405 | static inline int sysfs_create_files(struct kobject *kobj, |
9ee4685c | 406 | const struct attribute * const *attr) |
1c205ae1 AK |
407 | { |
408 | return 0; | |
409 | } | |
410 | ||
59f69015 | 411 | static inline int sysfs_chmod_file(struct kobject *kobj, |
48176a97 | 412 | const struct attribute *attr, umode_t mode) |
31e5abe9 KS |
413 | { |
414 | return 0; | |
415 | } | |
1da177e4 | 416 | |
2afc9166 BVA |
417 | static inline struct kernfs_node * |
418 | sysfs_break_active_protection(struct kobject *kobj, | |
419 | const struct attribute *attr) | |
420 | { | |
421 | return NULL; | |
422 | } | |
423 | ||
424 | static inline void sysfs_unbreak_active_protection(struct kernfs_node *kn) | |
425 | { | |
426 | } | |
427 | ||
58292cbe TH |
428 | static inline void sysfs_remove_file_ns(struct kobject *kobj, |
429 | const struct attribute *attr, | |
430 | const void *ns) | |
1da177e4 | 431 | { |
1da177e4 LT |
432 | } |
433 | ||
6b0afc2a TH |
434 | static inline bool sysfs_remove_file_self(struct kobject *kobj, |
435 | const struct attribute *attr) | |
436 | { | |
437 | return false; | |
438 | } | |
439 | ||
1c205ae1 | 440 | static inline void sysfs_remove_files(struct kobject *kobj, |
9ee4685c | 441 | const struct attribute * const *attr) |
1c205ae1 AK |
442 | { |
443 | } | |
444 | ||
59f69015 | 445 | static inline int sysfs_create_bin_file(struct kobject *kobj, |
66ecb92b | 446 | const struct bin_attribute *attr) |
1da177e4 LT |
447 | { |
448 | return 0; | |
449 | } | |
450 | ||
3612e06b | 451 | static inline void sysfs_remove_bin_file(struct kobject *kobj, |
66ecb92b | 452 | const struct bin_attribute *attr) |
1da177e4 | 453 | { |
1da177e4 LT |
454 | } |
455 | ||
59f69015 TH |
456 | static inline int sysfs_create_link(struct kobject *kobj, |
457 | struct kobject *target, const char *name) | |
1da177e4 LT |
458 | { |
459 | return 0; | |
460 | } | |
461 | ||
36ce6dad CH |
462 | static inline int sysfs_create_link_nowarn(struct kobject *kobj, |
463 | struct kobject *target, | |
464 | const char *name) | |
465 | { | |
466 | return 0; | |
467 | } | |
468 | ||
59f69015 | 469 | static inline void sysfs_remove_link(struct kobject *kobj, const char *name) |
1da177e4 | 470 | { |
1da177e4 LT |
471 | } |
472 | ||
4b30ee58 TH |
473 | static inline int sysfs_rename_link_ns(struct kobject *k, struct kobject *t, |
474 | const char *old_name, | |
475 | const char *new_name, const void *ns) | |
7cb32942 EB |
476 | { |
477 | return 0; | |
478 | } | |
479 | ||
746edb7a EB |
480 | static inline void sysfs_delete_link(struct kobject *k, struct kobject *t, |
481 | const char *name) | |
482 | { | |
483 | } | |
484 | ||
59f69015 TH |
485 | static inline int sysfs_create_group(struct kobject *kobj, |
486 | const struct attribute_group *grp) | |
1da177e4 LT |
487 | { |
488 | return 0; | |
489 | } | |
490 | ||
f7998780 GKH |
491 | static inline int sysfs_create_groups(struct kobject *kobj, |
492 | const struct attribute_group **groups) | |
493 | { | |
574979c6 | 494 | return 0; |
f7998780 GKH |
495 | } |
496 | ||
aac1f7f9 JO |
497 | static inline int sysfs_update_groups(struct kobject *kobj, |
498 | const struct attribute_group **groups) | |
499 | { | |
500 | return 0; | |
501 | } | |
502 | ||
1cbfb7a5 RD |
503 | static inline int sysfs_update_group(struct kobject *kobj, |
504 | const struct attribute_group *grp) | |
505 | { | |
506 | return 0; | |
507 | } | |
508 | ||
59f69015 TH |
509 | static inline void sysfs_remove_group(struct kobject *kobj, |
510 | const struct attribute_group *grp) | |
1da177e4 | 511 | { |
1da177e4 LT |
512 | } |
513 | ||
f7998780 GKH |
514 | static inline void sysfs_remove_groups(struct kobject *kobj, |
515 | const struct attribute_group **groups) | |
516 | { | |
517 | } | |
518 | ||
dfa87c82 AS |
519 | static inline int sysfs_add_file_to_group(struct kobject *kobj, |
520 | const struct attribute *attr, const char *group) | |
521 | { | |
522 | return 0; | |
523 | } | |
524 | ||
525 | static inline void sysfs_remove_file_from_group(struct kobject *kobj, | |
d701d8a3 | 526 | const struct attribute *attr, const char *group) |
dfa87c82 | 527 | { |
dfa87c82 AS |
528 | } |
529 | ||
69d44ffb AS |
530 | static inline int sysfs_merge_group(struct kobject *kobj, |
531 | const struct attribute_group *grp) | |
532 | { | |
533 | return 0; | |
534 | } | |
535 | ||
536 | static inline void sysfs_unmerge_group(struct kobject *kobj, | |
537 | const struct attribute_group *grp) | |
538 | { | |
539 | } | |
540 | ||
0bb8f3d6 RW |
541 | static inline int sysfs_add_link_to_group(struct kobject *kobj, |
542 | const char *group_name, struct kobject *target, | |
543 | const char *link_name) | |
544 | { | |
545 | return 0; | |
546 | } | |
547 | ||
548 | static inline void sysfs_remove_link_from_group(struct kobject *kobj, | |
549 | const char *group_name, const char *link_name) | |
550 | { | |
551 | } | |
552 | ||
9255782f SJ |
553 | static inline int compat_only_sysfs_link_entry_to_kobj(struct kobject *kobj, |
554 | struct kobject *target_kobj, | |
555 | const char *target_name, | |
556 | const char *symlink_name) | |
557 | { | |
558 | return 0; | |
559 | } | |
560 | ||
8c0e3998 TP |
561 | static inline void sysfs_notify(struct kobject *kobj, const char *dir, |
562 | const char *attr) | |
4508a7a7 N |
563 | { |
564 | } | |
565 | ||
f20a9ead AM |
566 | static inline int __must_check sysfs_init(void) |
567 | { | |
568 | return 0; | |
569 | } | |
570 | ||
fa4cd451 TH |
571 | static inline void sysfs_enable_ns(struct kernfs_node *kn) |
572 | { | |
573 | } | |
574 | ||
f70ce185 CB |
575 | static inline int sysfs_file_change_owner(struct kobject *kobj, |
576 | const char *name, kuid_t kuid, | |
0666a3ae CB |
577 | kgid_t kgid) |
578 | { | |
579 | return 0; | |
580 | } | |
581 | ||
582 | static inline int sysfs_link_change_owner(struct kobject *kobj, | |
583 | struct kobject *targ, | |
584 | const char *name, kuid_t kuid, | |
f70ce185 CB |
585 | kgid_t kgid) |
586 | { | |
587 | return 0; | |
588 | } | |
589 | ||
2c4f9401 CB |
590 | static inline int sysfs_change_owner(struct kobject *kobj, kuid_t kuid, kgid_t kgid) |
591 | { | |
592 | return 0; | |
593 | } | |
594 | ||
303a4276 CB |
595 | static inline int sysfs_groups_change_owner(struct kobject *kobj, |
596 | const struct attribute_group **groups, | |
597 | kuid_t kuid, kgid_t kgid) | |
598 | { | |
599 | return 0; | |
600 | } | |
601 | ||
602 | static inline int sysfs_group_change_owner(struct kobject *kobj, | |
8511d72f CB |
603 | const struct attribute_group *groups, |
604 | kuid_t kuid, kgid_t kgid) | |
303a4276 CB |
605 | { |
606 | return 0; | |
607 | } | |
608 | ||
2efc459d JP |
609 | __printf(2, 3) |
610 | static inline int sysfs_emit(char *buf, const char *fmt, ...) | |
611 | { | |
612 | return 0; | |
613 | } | |
614 | ||
615 | __printf(3, 4) | |
616 | static inline int sysfs_emit_at(char *buf, int at, const char *fmt, ...) | |
617 | { | |
618 | return 0; | |
619 | } | |
1da177e4 LT |
620 | #endif /* CONFIG_SYSFS */ |
621 | ||
58292cbe TH |
622 | static inline int __must_check sysfs_create_file(struct kobject *kobj, |
623 | const struct attribute *attr) | |
624 | { | |
625 | return sysfs_create_file_ns(kobj, attr, NULL); | |
626 | } | |
627 | ||
628 | static inline void sysfs_remove_file(struct kobject *kobj, | |
629 | const struct attribute *attr) | |
630 | { | |
78e1da62 | 631 | sysfs_remove_file_ns(kobj, attr, NULL); |
58292cbe TH |
632 | } |
633 | ||
4b30ee58 TH |
634 | static inline int sysfs_rename_link(struct kobject *kobj, struct kobject *target, |
635 | const char *old_name, const char *new_name) | |
636 | { | |
637 | return sysfs_rename_link_ns(kobj, target, old_name, new_name, NULL); | |
638 | } | |
639 | ||
324a56e1 | 640 | static inline void sysfs_notify_dirent(struct kernfs_node *kn) |
ccf73cf3 | 641 | { |
324a56e1 | 642 | kernfs_notify(kn); |
ccf73cf3 TH |
643 | } |
644 | ||
324a56e1 | 645 | static inline struct kernfs_node *sysfs_get_dirent(struct kernfs_node *parent, |
89cf2a20 | 646 | const char *name) |
388975cc | 647 | { |
324a56e1 | 648 | return kernfs_find_and_get(parent, name); |
388975cc TH |
649 | } |
650 | ||
324a56e1 | 651 | static inline struct kernfs_node *sysfs_get(struct kernfs_node *kn) |
024f6471 | 652 | { |
324a56e1 TH |
653 | kernfs_get(kn); |
654 | return kn; | |
ccf73cf3 TH |
655 | } |
656 | ||
324a56e1 | 657 | static inline void sysfs_put(struct kernfs_node *kn) |
ccf73cf3 | 658 | { |
324a56e1 | 659 | kernfs_put(kn); |
024f6471 TH |
660 | } |
661 | ||
1da177e4 | 662 | #endif /* _SYSFS_H_ */ |