Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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. |
Tejun Heo | 6d66f5c | 2007-09-20 17:31:38 +0900 | [diff] [blame] | 6 | * Copyright (c) 2007 SUSE Linux Products GmbH |
| 7 | * Copyright (c) 2007 Tejun Heo <teheo@suse.de> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * Please see Documentation/filesystems/sysfs.txt for more information. |
| 10 | */ |
| 11 | |
| 12 | #ifndef _SYSFS_H_ |
| 13 | #define _SYSFS_H_ |
| 14 | |
Andrew Morton | 4a7fb63 | 2006-08-14 22:43:17 -0700 | [diff] [blame] | 15 | #include <linux/compiler.h> |
Ralf Baechle | 5851fad | 2007-03-18 12:58:08 +0000 | [diff] [blame] | 16 | #include <linux/errno.h> |
Frank Haverkamp | bf0acc3 | 2007-01-17 17:51:18 +0100 | [diff] [blame] | 17 | #include <linux/list.h> |
Eric W. Biederman | 6992f53 | 2010-02-11 15:21:53 -0800 | [diff] [blame] | 18 | #include <linux/lockdep.h> |
David Howells | 8488a38 | 2010-08-11 15:01:02 +0100 | [diff] [blame] | 19 | #include <linux/kobject_ns.h> |
Oliver Schinagl | 3493f69 | 2013-07-14 16:05:59 -0700 | [diff] [blame] | 20 | #include <linux/stat.h> |
Arun Sharma | 60063497 | 2011-07-26 16:09:06 -0700 | [diff] [blame] | 21 | #include <linux/atomic.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | |
| 23 | struct kobject; |
| 24 | struct module; |
Greg Kroah-Hartman | 6ab9cea | 2013-07-14 16:05:55 -0700 | [diff] [blame] | 25 | struct bin_attribute; |
Eric W. Biederman | 3ff195b | 2010-03-30 11:31:26 -0700 | [diff] [blame] | 26 | enum kobj_ns_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | |
| 28 | struct attribute { |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 29 | const char *name; |
Al Viro | 9104e42 | 2011-07-23 23:10:46 -0400 | [diff] [blame] | 30 | umode_t mode; |
Eric W. Biederman | 6992f53 | 2010-02-11 15:21:53 -0800 | [diff] [blame] | 31 | #ifdef CONFIG_DEBUG_LOCK_ALLOC |
Alan Stern | 356c05d | 2012-05-14 13:30:03 -0400 | [diff] [blame] | 32 | bool ignore_lockdep:1; |
Eric W. Biederman | 6992f53 | 2010-02-11 15:21:53 -0800 | [diff] [blame] | 33 | struct lock_class_key *key; |
| 34 | struct lock_class_key skey; |
| 35 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | }; |
| 37 | |
Eric W. Biederman | 3596025 | 2010-02-12 04:35:32 -0800 | [diff] [blame] | 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 | */ |
Eric W. Biederman | 6992f53 | 2010-02-11 15:21:53 -0800 | [diff] [blame] | 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; \ |
Greg Kroah-Hartman | 5da5c9c | 2013-08-21 17:47:05 -0700 | [diff] [blame] | 54 | } while (0) |
Eric W. Biederman | 6992f53 | 2010-02-11 15:21:53 -0800 | [diff] [blame] | 55 | #else |
Greg Kroah-Hartman | 5da5c9c | 2013-08-21 17:47:05 -0700 | [diff] [blame] | 56 | #define sysfs_attr_init(attr) do {} while (0) |
Eric W. Biederman | 6992f53 | 2010-02-11 15:21:53 -0800 | [diff] [blame] | 57 | #endif |
| 58 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | struct attribute_group { |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 60 | const char *name; |
Al Viro | 587a1f1 | 2011-07-23 23:11:19 -0400 | [diff] [blame] | 61 | umode_t (*is_visible)(struct kobject *, |
James Bottomley | d4acd72 | 2007-10-31 09:38:04 -0500 | [diff] [blame] | 62 | struct attribute *, int); |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 63 | struct attribute **attrs; |
Greg Kroah-Hartman | 6ab9cea | 2013-07-14 16:05:55 -0700 | [diff] [blame] | 64 | struct bin_attribute **bin_attrs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | }; |
| 66 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | /** |
| 68 | * Use these macros to make defining attributes easier. See include/linux/device.h |
| 69 | * for examples.. |
| 70 | */ |
| 71 | |
Greg Kroah-Hartman | 5da5c9c | 2013-08-21 17:47:05 -0700 | [diff] [blame] | 72 | #define __ATTR(_name, _mode, _show, _store) { \ |
Oliver Schinagl | aa01aa3 | 2013-07-14 16:06:00 -0700 | [diff] [blame] | 73 | .attr = {.name = __stringify(_name), .mode = _mode }, \ |
| 74 | .show = _show, \ |
| 75 | .store = _store, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | } |
| 77 | |
Oliver Schinagl | aa01aa3 | 2013-07-14 16:06:00 -0700 | [diff] [blame] | 78 | #define __ATTR_RO(_name) { \ |
| 79 | .attr = { .name = __stringify(_name), .mode = S_IRUGO }, \ |
| 80 | .show = _name##_show, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | } |
| 82 | |
Greg Kroah-Hartman | a65fcce | 2013-08-23 15:02:01 -0700 | [diff] [blame] | 83 | #define __ATTR_WO(_name) { \ |
| 84 | .attr = { .name = __stringify(_name), .mode = S_IWUSR }, \ |
| 85 | .store = _name##_store, \ |
| 86 | } |
| 87 | |
Oliver Schinagl | aa01aa3 | 2013-07-14 16:06:00 -0700 | [diff] [blame] | 88 | #define __ATTR_RW(_name) __ATTR(_name, (S_IWUSR | S_IRUGO), \ |
| 89 | _name##_show, _name##_store) |
Greg Kroah-Hartman | b9b3259 | 2013-07-14 16:05:51 -0700 | [diff] [blame] | 90 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | #define __ATTR_NULL { .attr = { .name = NULL } } |
| 92 | |
Alan Stern | 356c05d | 2012-05-14 13:30:03 -0400 | [diff] [blame] | 93 | #ifdef CONFIG_DEBUG_LOCK_ALLOC |
| 94 | #define __ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) { \ |
| 95 | .attr = {.name = __stringify(_name), .mode = _mode, \ |
| 96 | .ignore_lockdep = true }, \ |
| 97 | .show = _show, \ |
| 98 | .store = _store, \ |
| 99 | } |
| 100 | #else |
| 101 | #define __ATTR_IGNORE_LOCKDEP __ATTR |
| 102 | #endif |
| 103 | |
Oliver Schinagl | 3493f69 | 2013-07-14 16:05:59 -0700 | [diff] [blame] | 104 | #define __ATTRIBUTE_GROUPS(_name) \ |
| 105 | static const struct attribute_group *_name##_groups[] = { \ |
| 106 | &_name##_group, \ |
Greg Kroah-Hartman | f2f37f5 | 2013-07-14 16:05:52 -0700 | [diff] [blame] | 107 | NULL, \ |
| 108 | } |
| 109 | |
Oliver Schinagl | 3493f69 | 2013-07-14 16:05:59 -0700 | [diff] [blame] | 110 | #define ATTRIBUTE_GROUPS(_name) \ |
| 111 | static const struct attribute_group _name##_group = { \ |
| 112 | .attrs = _name##_attrs, \ |
| 113 | }; \ |
| 114 | __ATTRIBUTE_GROUPS(_name) |
| 115 | |
Chris Wright | 2c3c8be | 2010-05-12 18:28:57 -0700 | [diff] [blame] | 116 | struct file; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | struct vm_area_struct; |
| 118 | |
| 119 | struct bin_attribute { |
| 120 | struct attribute attr; |
| 121 | size_t size; |
| 122 | void *private; |
Chris Wright | 2c3c8be | 2010-05-12 18:28:57 -0700 | [diff] [blame] | 123 | ssize_t (*read)(struct file *, struct kobject *, struct bin_attribute *, |
Zhang Rui | 91a6902 | 2007-06-09 13:57:22 +0800 | [diff] [blame] | 124 | char *, loff_t, size_t); |
Greg Kroah-Hartman | 5da5c9c | 2013-08-21 17:47:05 -0700 | [diff] [blame] | 125 | ssize_t (*write)(struct file *, struct kobject *, struct bin_attribute *, |
Zhang Rui | 91a6902 | 2007-06-09 13:57:22 +0800 | [diff] [blame] | 126 | char *, loff_t, size_t); |
Chris Wright | 2c3c8be | 2010-05-12 18:28:57 -0700 | [diff] [blame] | 127 | int (*mmap)(struct file *, struct kobject *, struct bin_attribute *attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | struct vm_area_struct *vma); |
| 129 | }; |
| 130 | |
Eric W. Biederman | 3596025 | 2010-02-12 04:35:32 -0800 | [diff] [blame] | 131 | /** |
| 132 | * sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute |
| 133 | * @attr: struct bin_attribute to initialize |
| 134 | * |
| 135 | * Initialize a dynamically allocated struct bin_attribute so we |
| 136 | * can make lockdep happy. This is a new requirement for |
| 137 | * attributes and initially this is only needed when lockdep is |
| 138 | * enabled. Lockdep gives a nice error when your attribute is |
| 139 | * added to sysfs if you don't have this. |
| 140 | */ |
Stephen Rothwell | 62e877b8 | 2010-03-01 20:38:36 +1100 | [diff] [blame] | 141 | #define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr) |
Eric W. Biederman | 6992f53 | 2010-02-11 15:21:53 -0800 | [diff] [blame] | 142 | |
Oliver Schinagl | 3493f69 | 2013-07-14 16:05:59 -0700 | [diff] [blame] | 143 | /* macros to create static binary attributes easier */ |
| 144 | #define __BIN_ATTR(_name, _mode, _read, _write, _size) { \ |
| 145 | .attr = { .name = __stringify(_name), .mode = _mode }, \ |
| 146 | .read = _read, \ |
| 147 | .write = _write, \ |
| 148 | .size = _size, \ |
Greg Kroah-Hartman | e4b6360 | 2013-07-14 16:05:53 -0700 | [diff] [blame] | 149 | } |
| 150 | |
Oliver Schinagl | 3493f69 | 2013-07-14 16:05:59 -0700 | [diff] [blame] | 151 | #define __BIN_ATTR_RO(_name, _size) { \ |
| 152 | .attr = { .name = __stringify(_name), .mode = S_IRUGO }, \ |
| 153 | .read = _name##_read, \ |
| 154 | .size = _size, \ |
| 155 | } |
| 156 | |
| 157 | #define __BIN_ATTR_RW(_name, _size) __BIN_ATTR(_name, \ |
| 158 | (S_IWUSR | S_IRUGO), _name##_read, \ |
Greg Kroah-Hartman | 6853152 | 2013-08-20 16:48:54 -0700 | [diff] [blame] | 159 | _name##_write, _size) |
Oliver Schinagl | 3493f69 | 2013-07-14 16:05:59 -0700 | [diff] [blame] | 160 | |
| 161 | #define __BIN_ATTR_NULL __ATTR_NULL |
| 162 | |
| 163 | #define BIN_ATTR(_name, _mode, _read, _write, _size) \ |
| 164 | struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \ |
| 165 | _write, _size) |
| 166 | |
| 167 | #define BIN_ATTR_RO(_name, _size) \ |
| 168 | struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size) |
| 169 | |
| 170 | #define BIN_ATTR_RW(_name, _size) \ |
| 171 | struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size) |
| 172 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | struct sysfs_ops { |
Greg Kroah-Hartman | 5da5c9c | 2013-08-21 17:47:05 -0700 | [diff] [blame] | 174 | ssize_t (*show)(struct kobject *, struct attribute *, char *); |
| 175 | ssize_t (*store)(struct kobject *, struct attribute *, const char *, size_t); |
Eric W. Biederman | 487505c | 2011-10-12 21:53:38 +0000 | [diff] [blame] | 176 | const void *(*namespace)(struct kobject *, const struct attribute *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | }; |
| 178 | |
Neil Brown | f1282c8 | 2008-07-16 08:58:04 +1000 | [diff] [blame] | 179 | struct sysfs_dirent; |
| 180 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | #ifdef CONFIG_SYSFS |
| 182 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 183 | int sysfs_schedule_callback(struct kobject *kobj, void (*func)(void *), |
| 184 | void *data, struct module *owner); |
Alan Stern | d9a9cdf | 2007-03-15 15:50:34 -0400 | [diff] [blame] | 185 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 186 | int __must_check sysfs_create_dir(struct kobject *kobj); |
| 187 | void sysfs_remove_dir(struct kobject *kobj); |
| 188 | int __must_check sysfs_rename_dir(struct kobject *kobj, const char *new_name); |
| 189 | int __must_check sysfs_move_dir(struct kobject *kobj, |
| 190 | struct kobject *new_parent_kobj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 192 | int __must_check sysfs_create_file(struct kobject *kobj, |
| 193 | const struct attribute *attr); |
Andi Kleen | 1c205ae | 2010-01-05 12:48:01 +0100 | [diff] [blame] | 194 | int __must_check sysfs_create_files(struct kobject *kobj, |
| 195 | const struct attribute **attr); |
Jean Delvare | 49c1940 | 2010-07-02 16:54:05 +0200 | [diff] [blame] | 196 | int __must_check sysfs_chmod_file(struct kobject *kobj, |
Al Viro | 48176a9 | 2011-07-24 03:40:40 -0400 | [diff] [blame] | 197 | const struct attribute *attr, umode_t mode); |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 198 | void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr); |
Andi Kleen | 1c205ae | 2010-01-05 12:48:01 +0100 | [diff] [blame] | 199 | void sysfs_remove_files(struct kobject *kobj, const struct attribute **attr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
Andrew Morton | 4a7fb63 | 2006-08-14 22:43:17 -0700 | [diff] [blame] | 201 | int __must_check sysfs_create_bin_file(struct kobject *kobj, |
Phil Carmody | 66ecb92 | 2009-12-18 15:34:20 +0200 | [diff] [blame] | 202 | const struct bin_attribute *attr); |
| 203 | void sysfs_remove_bin_file(struct kobject *kobj, |
| 204 | const struct bin_attribute *attr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 206 | int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target, |
| 207 | const char *name); |
Cornelia Huck | 36ce6da | 2008-06-10 11:09:08 +0200 | [diff] [blame] | 208 | int __must_check sysfs_create_link_nowarn(struct kobject *kobj, |
| 209 | struct kobject *target, |
| 210 | const char *name); |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 211 | void sysfs_remove_link(struct kobject *kobj, const char *name); |
Alan Stern | dfa87c8 | 2007-02-20 15:02:44 -0500 | [diff] [blame] | 212 | |
Eric W. Biederman | 7cb3294 | 2010-02-12 19:22:25 -0800 | [diff] [blame] | 213 | int sysfs_rename_link(struct kobject *kobj, struct kobject *target, |
| 214 | const char *old_name, const char *new_name); |
| 215 | |
Eric W. Biederman | 746edb7 | 2010-03-30 11:31:28 -0700 | [diff] [blame] | 216 | void sysfs_delete_link(struct kobject *dir, struct kobject *targ, |
| 217 | const char *name); |
| 218 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 219 | int __must_check sysfs_create_group(struct kobject *kobj, |
| 220 | const struct attribute_group *grp); |
Greg Kroah-Hartman | 3e9b2ba | 2013-08-21 13:47:50 -0700 | [diff] [blame] | 221 | int __must_check sysfs_create_groups(struct kobject *kobj, |
| 222 | const struct attribute_group **groups); |
James Bottomley | 0f42389 | 2008-03-20 20:47:52 -0500 | [diff] [blame] | 223 | int sysfs_update_group(struct kobject *kobj, |
| 224 | const struct attribute_group *grp); |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 225 | void sysfs_remove_group(struct kobject *kobj, |
| 226 | const struct attribute_group *grp); |
Greg Kroah-Hartman | 3e9b2ba | 2013-08-21 13:47:50 -0700 | [diff] [blame] | 227 | void sysfs_remove_groups(struct kobject *kobj, |
| 228 | const struct attribute_group **groups); |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 229 | int sysfs_add_file_to_group(struct kobject *kobj, |
| 230 | const struct attribute *attr, const char *group); |
| 231 | void sysfs_remove_file_from_group(struct kobject *kobj, |
| 232 | const struct attribute *attr, const char *group); |
Alan Stern | 69d44ff | 2010-09-25 23:34:22 +0200 | [diff] [blame] | 233 | int sysfs_merge_group(struct kobject *kobj, |
| 234 | const struct attribute_group *grp); |
| 235 | void sysfs_unmerge_group(struct kobject *kobj, |
| 236 | const struct attribute_group *grp); |
Rafael J. Wysocki | 0bb8f3d | 2013-01-25 21:51:13 +0100 | [diff] [blame] | 237 | int sysfs_add_link_to_group(struct kobject *kobj, const char *group_name, |
| 238 | struct kobject *target, const char *link_name); |
| 239 | void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name, |
| 240 | const char *link_name); |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 241 | |
Trent Piepho | 8c0e399 | 2008-09-25 16:45:13 -0700 | [diff] [blame] | 242 | void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr); |
Neil Brown | f1282c8 | 2008-07-16 08:58:04 +1000 | [diff] [blame] | 243 | void sysfs_notify_dirent(struct sysfs_dirent *sd); |
| 244 | struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd, |
Eric W. Biederman | 3ff195b | 2010-03-30 11:31:26 -0700 | [diff] [blame] | 245 | const void *ns, |
Neil Brown | f1282c8 | 2008-07-16 08:58:04 +1000 | [diff] [blame] | 246 | const unsigned char *name); |
| 247 | struct sysfs_dirent *sysfs_get(struct sysfs_dirent *sd); |
| 248 | void sysfs_put(struct sysfs_dirent *sd); |
Eric W. Biederman | 3ff195b | 2010-03-30 11:31:26 -0700 | [diff] [blame] | 249 | |
Neil Brown | f1282c8 | 2008-07-16 08:58:04 +1000 | [diff] [blame] | 250 | int __must_check sysfs_init(void); |
Andrew Morton | f20a9ea | 2006-08-14 22:43:23 -0700 | [diff] [blame] | 251 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | #else /* CONFIG_SYSFS */ |
| 253 | |
Alan Stern | d9a9cdf | 2007-03-15 15:50:34 -0400 | [diff] [blame] | 254 | static inline int sysfs_schedule_callback(struct kobject *kobj, |
Alan Stern | 523ded7 | 2007-04-26 00:12:04 -0700 | [diff] [blame] | 255 | void (*func)(void *), void *data, struct module *owner) |
Alan Stern | d9a9cdf | 2007-03-15 15:50:34 -0400 | [diff] [blame] | 256 | { |
| 257 | return -ENOSYS; |
| 258 | } |
| 259 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 260 | static inline int sysfs_create_dir(struct kobject *kobj) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | { |
| 262 | return 0; |
| 263 | } |
| 264 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 265 | static inline void sysfs_remove_dir(struct kobject *kobj) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | } |
| 268 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 269 | static inline int sysfs_rename_dir(struct kobject *kobj, const char *new_name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | { |
Eric W. Biederman | 0b4a4fe | 2008-07-03 18:05:28 -0700 | [diff] [blame] | 271 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | } |
| 273 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 274 | static inline int sysfs_move_dir(struct kobject *kobj, |
| 275 | struct kobject *new_parent_kobj) |
Cornelia Huck | 8a82472 | 2006-11-20 17:07:51 +0100 | [diff] [blame] | 276 | { |
| 277 | return 0; |
| 278 | } |
| 279 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 280 | static inline int sysfs_create_file(struct kobject *kobj, |
| 281 | const struct attribute *attr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | { |
| 283 | return 0; |
| 284 | } |
| 285 | |
Andi Kleen | 1c205ae | 2010-01-05 12:48:01 +0100 | [diff] [blame] | 286 | static inline int sysfs_create_files(struct kobject *kobj, |
| 287 | const struct attribute **attr) |
| 288 | { |
| 289 | return 0; |
| 290 | } |
| 291 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 292 | static inline int sysfs_chmod_file(struct kobject *kobj, |
Al Viro | 48176a9 | 2011-07-24 03:40:40 -0400 | [diff] [blame] | 293 | const struct attribute *attr, umode_t mode) |
Kay Sievers | 31e5abe | 2005-04-18 21:57:32 -0700 | [diff] [blame] | 294 | { |
| 295 | return 0; |
| 296 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 298 | static inline void sysfs_remove_file(struct kobject *kobj, |
| 299 | const struct attribute *attr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | } |
| 302 | |
Andi Kleen | 1c205ae | 2010-01-05 12:48:01 +0100 | [diff] [blame] | 303 | static inline void sysfs_remove_files(struct kobject *kobj, |
| 304 | const struct attribute **attr) |
| 305 | { |
| 306 | } |
| 307 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 308 | static inline int sysfs_create_bin_file(struct kobject *kobj, |
Phil Carmody | 66ecb92 | 2009-12-18 15:34:20 +0200 | [diff] [blame] | 309 | const struct bin_attribute *attr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | { |
| 311 | return 0; |
| 312 | } |
| 313 | |
David Rientjes | 3612e06 | 2008-02-19 17:39:02 -0800 | [diff] [blame] | 314 | static inline void sysfs_remove_bin_file(struct kobject *kobj, |
Phil Carmody | 66ecb92 | 2009-12-18 15:34:20 +0200 | [diff] [blame] | 315 | const struct bin_attribute *attr) |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 316 | { |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | static inline int sysfs_create_link(struct kobject *kobj, |
| 320 | struct kobject *target, const char *name) |
| 321 | { |
| 322 | return 0; |
| 323 | } |
| 324 | |
Cornelia Huck | 36ce6da | 2008-06-10 11:09:08 +0200 | [diff] [blame] | 325 | static inline int sysfs_create_link_nowarn(struct kobject *kobj, |
| 326 | struct kobject *target, |
| 327 | const char *name) |
| 328 | { |
| 329 | return 0; |
| 330 | } |
| 331 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 332 | static inline void sysfs_remove_link(struct kobject *kobj, const char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | } |
| 335 | |
Eric W. Biederman | 7cb3294 | 2010-02-12 19:22:25 -0800 | [diff] [blame] | 336 | static inline int sysfs_rename_link(struct kobject *k, struct kobject *t, |
| 337 | const char *old_name, const char *new_name) |
| 338 | { |
| 339 | return 0; |
| 340 | } |
| 341 | |
Eric W. Biederman | 746edb7 | 2010-03-30 11:31:28 -0700 | [diff] [blame] | 342 | static inline void sysfs_delete_link(struct kobject *k, struct kobject *t, |
| 343 | const char *name) |
| 344 | { |
| 345 | } |
| 346 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 347 | static inline int sysfs_create_group(struct kobject *kobj, |
| 348 | const struct attribute_group *grp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | { |
| 350 | return 0; |
| 351 | } |
| 352 | |
Greg Kroah-Hartman | f799878 | 2013-08-27 17:24:49 -0700 | [diff] [blame] | 353 | static inline int sysfs_create_groups(struct kobject *kobj, |
| 354 | const struct attribute_group **groups) |
| 355 | { |
Greg Kroah-Hartman | 574979c | 2013-08-28 09:51:41 -0700 | [diff] [blame] | 356 | return 0; |
Greg Kroah-Hartman | f799878 | 2013-08-27 17:24:49 -0700 | [diff] [blame] | 357 | } |
| 358 | |
Randy Dunlap | 1cbfb7a | 2008-04-30 09:01:17 -0700 | [diff] [blame] | 359 | static inline int sysfs_update_group(struct kobject *kobj, |
| 360 | const struct attribute_group *grp) |
| 361 | { |
| 362 | return 0; |
| 363 | } |
| 364 | |
Tejun Heo | 59f6901 | 2007-09-20 16:05:10 +0900 | [diff] [blame] | 365 | static inline void sysfs_remove_group(struct kobject *kobj, |
| 366 | const struct attribute_group *grp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | } |
| 369 | |
Greg Kroah-Hartman | f799878 | 2013-08-27 17:24:49 -0700 | [diff] [blame] | 370 | static inline void sysfs_remove_groups(struct kobject *kobj, |
| 371 | const struct attribute_group **groups) |
| 372 | { |
| 373 | } |
| 374 | |
Alan Stern | dfa87c8 | 2007-02-20 15:02:44 -0500 | [diff] [blame] | 375 | static inline int sysfs_add_file_to_group(struct kobject *kobj, |
| 376 | const struct attribute *attr, const char *group) |
| 377 | { |
| 378 | return 0; |
| 379 | } |
| 380 | |
| 381 | static inline void sysfs_remove_file_from_group(struct kobject *kobj, |
Ralf Baechle | d701d8a | 2007-03-01 12:40:21 +0000 | [diff] [blame] | 382 | const struct attribute *attr, const char *group) |
Alan Stern | dfa87c8 | 2007-02-20 15:02:44 -0500 | [diff] [blame] | 383 | { |
Alan Stern | dfa87c8 | 2007-02-20 15:02:44 -0500 | [diff] [blame] | 384 | } |
| 385 | |
Alan Stern | 69d44ff | 2010-09-25 23:34:22 +0200 | [diff] [blame] | 386 | static inline int sysfs_merge_group(struct kobject *kobj, |
| 387 | const struct attribute_group *grp) |
| 388 | { |
| 389 | return 0; |
| 390 | } |
| 391 | |
| 392 | static inline void sysfs_unmerge_group(struct kobject *kobj, |
| 393 | const struct attribute_group *grp) |
| 394 | { |
| 395 | } |
| 396 | |
Rafael J. Wysocki | 0bb8f3d | 2013-01-25 21:51:13 +0100 | [diff] [blame] | 397 | static inline int sysfs_add_link_to_group(struct kobject *kobj, |
| 398 | const char *group_name, struct kobject *target, |
| 399 | const char *link_name) |
| 400 | { |
| 401 | return 0; |
| 402 | } |
| 403 | |
| 404 | static inline void sysfs_remove_link_from_group(struct kobject *kobj, |
| 405 | const char *group_name, const char *link_name) |
| 406 | { |
| 407 | } |
| 408 | |
Trent Piepho | 8c0e399 | 2008-09-25 16:45:13 -0700 | [diff] [blame] | 409 | static inline void sysfs_notify(struct kobject *kobj, const char *dir, |
| 410 | const char *attr) |
NeilBrown | 4508a7a | 2006-03-20 17:53:53 +1100 | [diff] [blame] | 411 | { |
| 412 | } |
Neil Brown | f1282c8 | 2008-07-16 08:58:04 +1000 | [diff] [blame] | 413 | static inline void sysfs_notify_dirent(struct sysfs_dirent *sd) |
| 414 | { |
| 415 | } |
| 416 | static inline |
| 417 | struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd, |
Eric W. Biederman | 3ff195b | 2010-03-30 11:31:26 -0700 | [diff] [blame] | 418 | const void *ns, |
Neil Brown | f1282c8 | 2008-07-16 08:58:04 +1000 | [diff] [blame] | 419 | const unsigned char *name) |
| 420 | { |
| 421 | return NULL; |
| 422 | } |
| 423 | static inline struct sysfs_dirent *sysfs_get(struct sysfs_dirent *sd) |
| 424 | { |
| 425 | return NULL; |
| 426 | } |
| 427 | static inline void sysfs_put(struct sysfs_dirent *sd) |
| 428 | { |
| 429 | } |
NeilBrown | 4508a7a | 2006-03-20 17:53:53 +1100 | [diff] [blame] | 430 | |
Andrew Morton | f20a9ea | 2006-08-14 22:43:23 -0700 | [diff] [blame] | 431 | static inline int __must_check sysfs_init(void) |
| 432 | { |
| 433 | return 0; |
| 434 | } |
| 435 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | #endif /* CONFIG_SYSFS */ |
| 437 | |
| 438 | #endif /* _SYSFS_H_ */ |