1 /* Helpers for initial module or kernel cmdline parsing
2 Copyright (C) 2001 Rusty Russell.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 #include <linux/kernel.h>
19 #include <linux/string.h>
20 #include <linux/errno.h>
21 #include <linux/module.h>
22 #include <linux/moduleparam.h>
23 #include <linux/device.h>
24 #include <linux/err.h>
25 #include <linux/slab.h>
26 #include <linux/ctype.h>
28 /* Protects all parameters, and incidentally kmalloced_param list. */
29 static DEFINE_MUTEX(param_lock
);
31 /* This just allows us to keep track of which parameters are kmalloced. */
32 struct kmalloced_param
{
33 struct list_head list
;
36 static LIST_HEAD(kmalloced_params
);
38 static void *kmalloc_parameter(unsigned int size
)
40 struct kmalloced_param
*p
;
42 p
= kmalloc(sizeof(*p
) + size
, GFP_KERNEL
);
46 list_add(&p
->list
, &kmalloced_params
);
50 /* Does nothing if parameter wasn't kmalloced above. */
51 static void maybe_kfree_parameter(void *param
)
53 struct kmalloced_param
*p
;
55 list_for_each_entry(p
, &kmalloced_params
, list
) {
56 if (p
->val
== param
) {
64 static char dash2underscore(char c
)
71 bool parameqn(const char *a
, const char *b
, size_t n
)
75 for (i
= 0; i
< n
; i
++) {
76 if (dash2underscore(a
[i
]) != dash2underscore(b
[i
]))
82 bool parameq(const char *a
, const char *b
)
84 return parameqn(a
, b
, strlen(a
)+1);
87 static void param_check_unsafe(const struct kernel_param
*kp
)
89 if (kp
->flags
& KERNEL_PARAM_FL_UNSAFE
) {
90 pr_warn("Setting dangerous option %s - tainting kernel\n",
92 add_taint(TAINT_USER
, LOCKDEP_STILL_OK
);
96 static int parse_one(char *param
,
99 const struct kernel_param
*params
,
104 int (*handle_unknown
)(char *param
, char *val
,
105 const char *doing
, void *arg
))
111 for (i
= 0; i
< num_params
; i
++) {
112 if (parameq(param
, params
[i
].name
)) {
113 if (params
[i
].level
< min_level
114 || params
[i
].level
> max_level
)
116 /* No one handled NULL, so do it here. */
118 !(params
[i
].ops
->flags
& KERNEL_PARAM_OPS_FL_NOARG
))
120 pr_debug("handling %s with %p\n", param
,
122 mutex_lock(¶m_lock
);
123 param_check_unsafe(¶ms
[i
]);
124 err
= params
[i
].ops
->set(val
, ¶ms
[i
]);
125 mutex_unlock(¶m_lock
);
130 if (handle_unknown
) {
131 pr_debug("doing %s: %s='%s'\n", doing
, param
, val
);
132 return handle_unknown(param
, val
, doing
, arg
);
135 pr_debug("Unknown argument '%s'\n", param
);
139 /* You can use " around spaces, but can't escape ". */
140 /* Hyphens and underscores equivalent in parameter names. */
141 static char *next_arg(char *args
, char **param
, char **val
)
143 unsigned int i
, equals
= 0;
144 int in_quote
= 0, quoted
= 0;
153 for (i
= 0; args
[i
]; i
++) {
154 if (isspace(args
[i
]) && !in_quote
)
161 in_quote
= !in_quote
;
169 *val
= args
+ equals
+ 1;
171 /* Don't include quotes in value. */
174 if (args
[i
-1] == '"')
178 if (quoted
&& args
[i
-1] == '"')
187 /* Chew up trailing spaces. */
188 return skip_spaces(next
);
191 /* Args looks like "foo=bar,bar2 baz=fuz wiz". */
192 char *parse_args(const char *doing
,
194 const struct kernel_param
*params
,
199 int (*unknown
)(char *param
, char *val
,
200 const char *doing
, void *arg
))
204 /* Chew leading spaces */
205 args
= skip_spaces(args
);
208 pr_debug("doing %s, parsing ARGS: '%s'\n", doing
, args
);
212 int irq_was_disabled
;
214 args
= next_arg(args
, ¶m
, &val
);
216 if (!val
&& strcmp(param
, "--") == 0)
218 irq_was_disabled
= irqs_disabled();
219 ret
= parse_one(param
, val
, doing
, params
, num
,
220 min_level
, max_level
, arg
, unknown
);
221 if (irq_was_disabled
&& !irqs_disabled())
222 pr_warn("%s: option '%s' enabled irq's!\n",
227 pr_err("%s: Unknown parameter `%s'\n", doing
, param
);
230 pr_err("%s: `%s' too large for parameter `%s'\n",
231 doing
, val
?: "", param
);
236 pr_err("%s: `%s' invalid for parameter `%s'\n",
237 doing
, val
?: "", param
);
246 /* Lazy bastard, eh? */
247 #define STANDARD_PARAM_DEF(name, type, format, strtolfn) \
248 int param_set_##name(const char *val, const struct kernel_param *kp) \
250 return strtolfn(val, 0, (type *)kp->arg); \
252 int param_get_##name(char *buffer, const struct kernel_param *kp) \
254 return scnprintf(buffer, PAGE_SIZE, format, \
255 *((type *)kp->arg)); \
257 struct kernel_param_ops param_ops_##name = { \
258 .set = param_set_##name, \
259 .get = param_get_##name, \
261 EXPORT_SYMBOL(param_set_##name); \
262 EXPORT_SYMBOL(param_get_##name); \
263 EXPORT_SYMBOL(param_ops_##name)
266 STANDARD_PARAM_DEF(byte
, unsigned char, "%hhu", kstrtou8
);
267 STANDARD_PARAM_DEF(short, short, "%hi", kstrtos16
);
268 STANDARD_PARAM_DEF(ushort
, unsigned short, "%hu", kstrtou16
);
269 STANDARD_PARAM_DEF(int, int, "%i", kstrtoint
);
270 STANDARD_PARAM_DEF(uint
, unsigned int, "%u", kstrtouint
);
271 STANDARD_PARAM_DEF(long, long, "%li", kstrtol
);
272 STANDARD_PARAM_DEF(ulong
, unsigned long, "%lu", kstrtoul
);
273 STANDARD_PARAM_DEF(ullong
, unsigned long long, "%llu", kstrtoull
);
275 int param_set_charp(const char *val
, const struct kernel_param
*kp
)
277 if (strlen(val
) > 1024) {
278 pr_err("%s: string parameter too long\n", kp
->name
);
282 maybe_kfree_parameter(*(char **)kp
->arg
);
284 /* This is a hack. We can't kmalloc in early boot, and we
285 * don't need to; this mangled commandline is preserved. */
286 if (slab_is_available()) {
287 *(char **)kp
->arg
= kmalloc_parameter(strlen(val
)+1);
288 if (!*(char **)kp
->arg
)
290 strcpy(*(char **)kp
->arg
, val
);
292 *(const char **)kp
->arg
= val
;
296 EXPORT_SYMBOL(param_set_charp
);
298 int param_get_charp(char *buffer
, const struct kernel_param
*kp
)
300 return scnprintf(buffer
, PAGE_SIZE
, "%s", *((char **)kp
->arg
));
302 EXPORT_SYMBOL(param_get_charp
);
304 static void param_free_charp(void *arg
)
306 maybe_kfree_parameter(*((char **)arg
));
309 struct kernel_param_ops param_ops_charp
= {
310 .set
= param_set_charp
,
311 .get
= param_get_charp
,
312 .free
= param_free_charp
,
314 EXPORT_SYMBOL(param_ops_charp
);
316 /* Actually could be a bool or an int, for historical reasons. */
317 int param_set_bool(const char *val
, const struct kernel_param
*kp
)
319 /* No equals means "set"... */
322 /* One of =[yYnN01] */
323 return strtobool(val
, kp
->arg
);
325 EXPORT_SYMBOL(param_set_bool
);
327 int param_get_bool(char *buffer
, const struct kernel_param
*kp
)
329 /* Y and N chosen as being relatively non-coder friendly */
330 return sprintf(buffer
, "%c", *(bool *)kp
->arg
? 'Y' : 'N');
332 EXPORT_SYMBOL(param_get_bool
);
334 struct kernel_param_ops param_ops_bool
= {
335 .flags
= KERNEL_PARAM_OPS_FL_NOARG
,
336 .set
= param_set_bool
,
337 .get
= param_get_bool
,
339 EXPORT_SYMBOL(param_ops_bool
);
341 /* This one must be bool. */
342 int param_set_invbool(const char *val
, const struct kernel_param
*kp
)
346 struct kernel_param dummy
;
348 dummy
.arg
= &boolval
;
349 ret
= param_set_bool(val
, &dummy
);
351 *(bool *)kp
->arg
= !boolval
;
354 EXPORT_SYMBOL(param_set_invbool
);
356 int param_get_invbool(char *buffer
, const struct kernel_param
*kp
)
358 return sprintf(buffer
, "%c", (*(bool *)kp
->arg
) ? 'N' : 'Y');
360 EXPORT_SYMBOL(param_get_invbool
);
362 struct kernel_param_ops param_ops_invbool
= {
363 .set
= param_set_invbool
,
364 .get
= param_get_invbool
,
366 EXPORT_SYMBOL(param_ops_invbool
);
368 int param_set_bint(const char *val
, const struct kernel_param
*kp
)
370 struct kernel_param boolkp
;
374 /* Match bool exactly, by re-using it. */
378 ret
= param_set_bool(val
, &boolkp
);
383 EXPORT_SYMBOL(param_set_bint
);
385 struct kernel_param_ops param_ops_bint
= {
386 .flags
= KERNEL_PARAM_OPS_FL_NOARG
,
387 .set
= param_set_bint
,
388 .get
= param_get_int
,
390 EXPORT_SYMBOL(param_ops_bint
);
392 /* We break the rule and mangle the string. */
393 static int param_array(const char *name
,
395 unsigned int min
, unsigned int max
,
396 void *elem
, int elemsize
,
397 int (*set
)(const char *, const struct kernel_param
*kp
),
402 struct kernel_param kp
;
405 /* Get the name right for errors. */
411 /* We expect a comma-separated list of values. */
416 pr_err("%s: can only take %i arguments\n", name
, max
);
419 len
= strcspn(val
, ",");
421 /* nul-terminate and parse */
423 ((char *)val
)[len
] = '\0';
424 BUG_ON(!mutex_is_locked(¶m_lock
));
432 } while (save
== ',');
435 pr_err("%s: needs at least %i arguments\n", name
, min
);
441 static int param_array_set(const char *val
, const struct kernel_param
*kp
)
443 const struct kparam_array
*arr
= kp
->arr
;
444 unsigned int temp_num
;
446 return param_array(kp
->name
, val
, 1, arr
->max
, arr
->elem
,
447 arr
->elemsize
, arr
->ops
->set
, kp
->level
,
448 arr
->num
?: &temp_num
);
451 static int param_array_get(char *buffer
, const struct kernel_param
*kp
)
454 const struct kparam_array
*arr
= kp
->arr
;
455 struct kernel_param p
;
458 for (i
= off
= 0; i
< (arr
->num
? *arr
->num
: arr
->max
); i
++) {
461 p
.arg
= arr
->elem
+ arr
->elemsize
* i
;
462 BUG_ON(!mutex_is_locked(¶m_lock
));
463 ret
= arr
->ops
->get(buffer
+ off
, &p
);
472 static void param_array_free(void *arg
)
475 const struct kparam_array
*arr
= arg
;
478 for (i
= 0; i
< (arr
->num
? *arr
->num
: arr
->max
); i
++)
479 arr
->ops
->free(arr
->elem
+ arr
->elemsize
* i
);
482 struct kernel_param_ops param_array_ops
= {
483 .set
= param_array_set
,
484 .get
= param_array_get
,
485 .free
= param_array_free
,
487 EXPORT_SYMBOL(param_array_ops
);
489 int param_set_copystring(const char *val
, const struct kernel_param
*kp
)
491 const struct kparam_string
*kps
= kp
->str
;
493 if (strlen(val
)+1 > kps
->maxlen
) {
494 pr_err("%s: string doesn't fit in %u chars.\n",
495 kp
->name
, kps
->maxlen
-1);
498 strcpy(kps
->string
, val
);
501 EXPORT_SYMBOL(param_set_copystring
);
503 int param_get_string(char *buffer
, const struct kernel_param
*kp
)
505 const struct kparam_string
*kps
= kp
->str
;
506 return strlcpy(buffer
, kps
->string
, kps
->maxlen
);
508 EXPORT_SYMBOL(param_get_string
);
510 struct kernel_param_ops param_ops_string
= {
511 .set
= param_set_copystring
,
512 .get
= param_get_string
,
514 EXPORT_SYMBOL(param_ops_string
);
516 /* sysfs output in /sys/modules/XYZ/parameters/ */
517 #define to_module_attr(n) container_of(n, struct module_attribute, attr)
518 #define to_module_kobject(n) container_of(n, struct module_kobject, kobj)
520 struct param_attribute
522 struct module_attribute mattr
;
523 const struct kernel_param
*param
;
526 struct module_param_attrs
529 struct attribute_group grp
;
530 struct param_attribute attrs
[0];
534 #define to_param_attr(n) container_of(n, struct param_attribute, mattr)
536 static ssize_t
param_attr_show(struct module_attribute
*mattr
,
537 struct module_kobject
*mk
, char *buf
)
540 struct param_attribute
*attribute
= to_param_attr(mattr
);
542 if (!attribute
->param
->ops
->get
)
545 mutex_lock(¶m_lock
);
546 count
= attribute
->param
->ops
->get(buf
, attribute
->param
);
547 mutex_unlock(¶m_lock
);
555 /* sysfs always hands a nul-terminated string in buf. We rely on that. */
556 static ssize_t
param_attr_store(struct module_attribute
*mattr
,
557 struct module_kobject
*km
,
558 const char *buf
, size_t len
)
561 struct param_attribute
*attribute
= to_param_attr(mattr
);
563 if (!attribute
->param
->ops
->set
)
566 mutex_lock(¶m_lock
);
567 param_check_unsafe(attribute
->param
);
568 err
= attribute
->param
->ops
->set(buf
, attribute
->param
);
569 mutex_unlock(¶m_lock
);
576 #ifdef CONFIG_MODULES
579 #define __modinit __init
583 void __kernel_param_lock(void)
585 mutex_lock(¶m_lock
);
587 EXPORT_SYMBOL(__kernel_param_lock
);
589 void __kernel_param_unlock(void)
591 mutex_unlock(¶m_lock
);
593 EXPORT_SYMBOL(__kernel_param_unlock
);
596 * add_sysfs_param - add a parameter to sysfs
597 * @mk: struct module_kobject
598 * @kparam: the actual parameter definition to add to sysfs
599 * @name: name of parameter
601 * Create a kobject if for a (per-module) parameter if mp NULL, and
602 * create file in sysfs. Returns an error on out of memory. Always cleans up
603 * if there's an error.
605 static __modinit
int add_sysfs_param(struct module_kobject
*mk
,
606 const struct kernel_param
*kp
,
609 struct module_param_attrs
*new_mp
;
610 struct attribute
**new_attrs
;
613 /* We don't bother calling this with invisible parameters. */
617 /* First allocation. */
618 mk
->mp
= kzalloc(sizeof(*mk
->mp
), GFP_KERNEL
);
621 mk
->mp
->grp
.name
= "parameters";
622 /* NULL-terminated attribute array. */
623 mk
->mp
->grp
.attrs
= kzalloc(sizeof(mk
->mp
->grp
.attrs
[0]),
625 /* Caller will cleanup via free_module_param_attrs */
626 if (!mk
->mp
->grp
.attrs
)
630 /* Enlarge allocations. */
631 new_mp
= krealloc(mk
->mp
,
633 sizeof(mk
->mp
->attrs
[0]) * (mk
->mp
->num
+ 1),
639 /* Extra pointer for NULL terminator */
640 new_attrs
= krealloc(mk
->mp
->grp
.attrs
,
641 sizeof(mk
->mp
->grp
.attrs
[0]) * (mk
->mp
->num
+ 2),
645 mk
->mp
->grp
.attrs
= new_attrs
;
647 /* Tack new one on the end. */
648 memset(&mk
->mp
->attrs
[mk
->mp
->num
], 0, sizeof(mk
->mp
->attrs
[0]));
649 sysfs_attr_init(&mk
->mp
->attrs
[mk
->mp
->num
].mattr
.attr
);
650 mk
->mp
->attrs
[mk
->mp
->num
].param
= kp
;
651 mk
->mp
->attrs
[mk
->mp
->num
].mattr
.show
= param_attr_show
;
652 /* Do not allow runtime DAC changes to make param writable. */
653 if ((kp
->perm
& (S_IWUSR
| S_IWGRP
| S_IWOTH
)) != 0)
654 mk
->mp
->attrs
[mk
->mp
->num
].mattr
.store
= param_attr_store
;
656 mk
->mp
->attrs
[mk
->mp
->num
].mattr
.store
= NULL
;
657 mk
->mp
->attrs
[mk
->mp
->num
].mattr
.attr
.name
= (char *)name
;
658 mk
->mp
->attrs
[mk
->mp
->num
].mattr
.attr
.mode
= kp
->perm
;
661 /* Fix up all the pointers, since krealloc can move us */
662 for (i
= 0; i
< mk
->mp
->num
; i
++)
663 mk
->mp
->grp
.attrs
[i
] = &mk
->mp
->attrs
[i
].mattr
.attr
;
664 mk
->mp
->grp
.attrs
[mk
->mp
->num
] = NULL
;
668 #ifdef CONFIG_MODULES
669 static void free_module_param_attrs(struct module_kobject
*mk
)
672 kfree(mk
->mp
->grp
.attrs
);
678 * module_param_sysfs_setup - setup sysfs support for one module
680 * @kparam: module parameters (array)
681 * @num_params: number of module parameters
683 * Adds sysfs entries for module parameters under
684 * /sys/module/[mod->name]/parameters/
686 int module_param_sysfs_setup(struct module
*mod
,
687 const struct kernel_param
*kparam
,
688 unsigned int num_params
)
693 for (i
= 0; i
< num_params
; i
++) {
694 if (kparam
[i
].perm
== 0)
696 err
= add_sysfs_param(&mod
->mkobj
, &kparam
[i
], kparam
[i
].name
);
698 free_module_param_attrs(&mod
->mkobj
);
707 /* Create the param group. */
708 err
= sysfs_create_group(&mod
->mkobj
.kobj
, &mod
->mkobj
.mp
->grp
);
710 free_module_param_attrs(&mod
->mkobj
);
715 * module_param_sysfs_remove - remove sysfs support for one module
718 * Remove sysfs entries for module parameters and the corresponding
721 void module_param_sysfs_remove(struct module
*mod
)
724 sysfs_remove_group(&mod
->mkobj
.kobj
, &mod
->mkobj
.mp
->grp
);
725 /* We are positive that no one is using any param
726 * attrs at this point. Deallocate immediately. */
727 free_module_param_attrs(&mod
->mkobj
);
732 void destroy_params(const struct kernel_param
*params
, unsigned num
)
736 for (i
= 0; i
< num
; i
++)
737 if (params
[i
].ops
->free
)
738 params
[i
].ops
->free(params
[i
].arg
);
741 static struct module_kobject
* __init
locate_module_kobject(const char *name
)
743 struct module_kobject
*mk
;
744 struct kobject
*kobj
;
747 kobj
= kset_find_obj(module_kset
, name
);
749 mk
= to_module_kobject(kobj
);
751 mk
= kzalloc(sizeof(struct module_kobject
), GFP_KERNEL
);
754 mk
->mod
= THIS_MODULE
;
755 mk
->kobj
.kset
= module_kset
;
756 err
= kobject_init_and_add(&mk
->kobj
, &module_ktype
, NULL
,
758 #ifdef CONFIG_MODULES
760 err
= sysfs_create_file(&mk
->kobj
, &module_uevent
.attr
);
763 kobject_put(&mk
->kobj
);
764 pr_crit("Adding module '%s' to sysfs failed (%d), the system may be unstable.\n",
769 /* So that we hold reference in both cases. */
770 kobject_get(&mk
->kobj
);
776 static void __init
kernel_add_sysfs_param(const char *name
,
777 const struct kernel_param
*kparam
,
778 unsigned int name_skip
)
780 struct module_kobject
*mk
;
783 mk
= locate_module_kobject(name
);
787 /* We need to remove old parameters before adding more. */
789 sysfs_remove_group(&mk
->kobj
, &mk
->mp
->grp
);
791 /* These should not fail at boot. */
792 err
= add_sysfs_param(mk
, kparam
, kparam
->name
+ name_skip
);
794 err
= sysfs_create_group(&mk
->kobj
, &mk
->mp
->grp
);
796 kobject_uevent(&mk
->kobj
, KOBJ_ADD
);
797 kobject_put(&mk
->kobj
);
801 * param_sysfs_builtin - add sysfs parameters for built-in modules
803 * Add module_parameters to sysfs for "modules" built into the kernel.
805 * The "module" name (KBUILD_MODNAME) is stored before a dot, the
806 * "parameter" name is stored behind a dot in kernel_param->name. So,
807 * extract the "module" name for all built-in kernel_param-eters,
808 * and for all who have the same, call kernel_add_sysfs_param.
810 static void __init
param_sysfs_builtin(void)
812 const struct kernel_param
*kp
;
813 unsigned int name_len
;
814 char modname
[MODULE_NAME_LEN
];
816 for (kp
= __start___param
; kp
< __stop___param
; kp
++) {
822 dot
= strchr(kp
->name
, '.');
824 /* This happens for core_param() */
825 strcpy(modname
, "kernel");
828 name_len
= dot
- kp
->name
+ 1;
829 strlcpy(modname
, kp
->name
, name_len
);
831 kernel_add_sysfs_param(modname
, kp
, name_len
);
835 ssize_t
__modver_version_show(struct module_attribute
*mattr
,
836 struct module_kobject
*mk
, char *buf
)
838 struct module_version_attribute
*vattr
=
839 container_of(mattr
, struct module_version_attribute
, mattr
);
841 return scnprintf(buf
, PAGE_SIZE
, "%s\n", vattr
->version
);
844 extern const struct module_version_attribute
*__start___modver
[];
845 extern const struct module_version_attribute
*__stop___modver
[];
847 static void __init
version_sysfs_builtin(void)
849 const struct module_version_attribute
**p
;
850 struct module_kobject
*mk
;
853 for (p
= __start___modver
; p
< __stop___modver
; p
++) {
854 const struct module_version_attribute
*vattr
= *p
;
856 mk
= locate_module_kobject(vattr
->module_name
);
858 err
= sysfs_create_file(&mk
->kobj
, &vattr
->mattr
.attr
);
859 kobject_uevent(&mk
->kobj
, KOBJ_ADD
);
860 kobject_put(&mk
->kobj
);
865 /* module-related sysfs stuff */
867 static ssize_t
module_attr_show(struct kobject
*kobj
,
868 struct attribute
*attr
,
871 struct module_attribute
*attribute
;
872 struct module_kobject
*mk
;
875 attribute
= to_module_attr(attr
);
876 mk
= to_module_kobject(kobj
);
878 if (!attribute
->show
)
881 ret
= attribute
->show(attribute
, mk
, buf
);
886 static ssize_t
module_attr_store(struct kobject
*kobj
,
887 struct attribute
*attr
,
888 const char *buf
, size_t len
)
890 struct module_attribute
*attribute
;
891 struct module_kobject
*mk
;
894 attribute
= to_module_attr(attr
);
895 mk
= to_module_kobject(kobj
);
897 if (!attribute
->store
)
900 ret
= attribute
->store(attribute
, mk
, buf
, len
);
905 static const struct sysfs_ops module_sysfs_ops
= {
906 .show
= module_attr_show
,
907 .store
= module_attr_store
,
910 static int uevent_filter(struct kset
*kset
, struct kobject
*kobj
)
912 struct kobj_type
*ktype
= get_ktype(kobj
);
914 if (ktype
== &module_ktype
)
919 static const struct kset_uevent_ops module_uevent_ops
= {
920 .filter
= uevent_filter
,
923 struct kset
*module_kset
;
924 int module_sysfs_initialized
;
926 static void module_kobj_release(struct kobject
*kobj
)
928 struct module_kobject
*mk
= to_module_kobject(kobj
);
929 complete(mk
->kobj_completion
);
932 struct kobj_type module_ktype
= {
933 .release
= module_kobj_release
,
934 .sysfs_ops
= &module_sysfs_ops
,
938 * param_sysfs_init - wrapper for built-in params support
940 static int __init
param_sysfs_init(void)
942 module_kset
= kset_create_and_add("module", &module_uevent_ops
, NULL
);
944 printk(KERN_WARNING
"%s (%d): error creating kset\n",
948 module_sysfs_initialized
= 1;
950 version_sysfs_builtin();
951 param_sysfs_builtin();
955 subsys_initcall(param_sysfs_init
);
957 #endif /* CONFIG_SYSFS */