Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef _LINUX_MODULE_H |
2 | #define _LINUX_MODULE_H | |
3 | /* | |
4 | * Dynamic loading of modules into the kernel. | |
5 | * | |
6 | * Rewritten by Richard Henderson <rth@tamu.edu> Dec 1996 | |
7 | * Rewritten again by Rusty Russell, 2002 | |
8 | */ | |
1da177e4 LT |
9 | #include <linux/list.h> |
10 | #include <linux/stat.h> | |
11 | #include <linux/compiler.h> | |
12 | #include <linux/cache.h> | |
13 | #include <linux/kmod.h> | |
14 | #include <linux/elf.h> | |
15 | #include <linux/stringify.h> | |
16 | #include <linux/kobject.h> | |
17 | #include <linux/moduleparam.h> | |
8256e47c | 18 | #include <linux/marker.h> |
1da177e4 LT |
19 | #include <asm/local.h> |
20 | ||
21 | #include <asm/module.h> | |
22 | ||
23 | /* Not Yet Implemented */ | |
24 | #define MODULE_SUPPORTED_DEVICE(name) | |
25 | ||
f606ddf4 | 26 | /* some toolchains uses a `_' prefix for all user symbols */ |
1da177e4 LT |
27 | #ifndef MODULE_SYMBOL_PREFIX |
28 | #define MODULE_SYMBOL_PREFIX "" | |
29 | #endif | |
30 | ||
31 | #define MODULE_NAME_LEN (64 - sizeof(unsigned long)) | |
32 | ||
33 | struct kernel_symbol | |
34 | { | |
35 | unsigned long value; | |
36 | const char *name; | |
37 | }; | |
38 | ||
39 | struct modversion_info | |
40 | { | |
41 | unsigned long crc; | |
42 | char name[MODULE_NAME_LEN]; | |
43 | }; | |
44 | ||
45 | struct module; | |
46 | ||
47 | struct module_attribute { | |
48 | struct attribute attr; | |
49 | ssize_t (*show)(struct module_attribute *, struct module *, char *); | |
50 | ssize_t (*store)(struct module_attribute *, struct module *, | |
51 | const char *, size_t count); | |
c988d2b2 MD |
52 | void (*setup)(struct module *, const char *); |
53 | int (*test)(struct module *); | |
54 | void (*free)(struct module *); | |
1da177e4 LT |
55 | }; |
56 | ||
57 | struct module_kobject | |
58 | { | |
59 | struct kobject kobj; | |
60 | struct module *mod; | |
f30c53a8 | 61 | struct kobject *drivers_dir; |
1da177e4 LT |
62 | }; |
63 | ||
64 | /* These are either module local, or the kernel's dummy ones. */ | |
65 | extern int init_module(void); | |
66 | extern void cleanup_module(void); | |
67 | ||
68 | /* Archs provide a method of finding the correct exception table. */ | |
69 | struct exception_table_entry; | |
70 | ||
71 | const struct exception_table_entry * | |
72 | search_extable(const struct exception_table_entry *first, | |
73 | const struct exception_table_entry *last, | |
74 | unsigned long value); | |
75 | void sort_extable(struct exception_table_entry *start, | |
76 | struct exception_table_entry *finish); | |
77 | void sort_main_extable(void); | |
78 | ||
1da177e4 LT |
79 | #ifdef MODULE |
80 | #define MODULE_GENERIC_TABLE(gtype,name) \ | |
81 | extern const struct gtype##_id __mod_##gtype##_table \ | |
82 | __attribute__ ((unused, alias(__stringify(name)))) | |
83 | ||
84 | extern struct module __this_module; | |
85 | #define THIS_MODULE (&__this_module) | |
86 | #else /* !MODULE */ | |
87 | #define MODULE_GENERIC_TABLE(gtype,name) | |
88 | #define THIS_MODULE ((struct module *)0) | |
89 | #endif | |
90 | ||
91 | /* Generic info of form tag = "info" */ | |
92 | #define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info) | |
93 | ||
94 | /* For userspace: you can also call me... */ | |
95 | #define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias) | |
96 | ||
97 | /* | |
98 | * The following license idents are currently accepted as indicating free | |
99 | * software modules | |
100 | * | |
101 | * "GPL" [GNU Public License v2 or later] | |
102 | * "GPL v2" [GNU Public License v2] | |
103 | * "GPL and additional rights" [GNU Public License v2 rights and more] | |
104 | * "Dual BSD/GPL" [GNU Public License v2 | |
105 | * or BSD license choice] | |
8d27e908 XVP |
106 | * "Dual MIT/GPL" [GNU Public License v2 |
107 | * or MIT license choice] | |
1da177e4 LT |
108 | * "Dual MPL/GPL" [GNU Public License v2 |
109 | * or Mozilla license choice] | |
110 | * | |
111 | * The following other idents are available | |
112 | * | |
113 | * "Proprietary" [Non free products] | |
114 | * | |
115 | * There are dual licensed components, but when running with Linux it is the | |
116 | * GPL that is relevant so this is a non issue. Similarly LGPL linked with GPL | |
117 | * is a GPL combined work. | |
118 | * | |
119 | * This exists for several reasons | |
120 | * 1. So modinfo can show license info for users wanting to vet their setup | |
121 | * is free | |
122 | * 2. So the community can ignore bug reports including proprietary modules | |
123 | * 3. So vendors can do likewise based on their own policies | |
124 | */ | |
125 | #define MODULE_LICENSE(_license) MODULE_INFO(license, _license) | |
126 | ||
108f39a1 | 127 | /* Author, ideally of form NAME[, NAME]*[ and NAME] */ |
1da177e4 LT |
128 | #define MODULE_AUTHOR(_author) MODULE_INFO(author, _author) |
129 | ||
130 | /* What your module does. */ | |
131 | #define MODULE_DESCRIPTION(_description) MODULE_INFO(description, _description) | |
132 | ||
133 | /* One for each parameter, describing how to use it. Some files do | |
134 | multiple of these per line, so can't just use MODULE_INFO. */ | |
135 | #define MODULE_PARM_DESC(_parm, desc) \ | |
136 | __MODULE_INFO(parm, _parm, #_parm ":" desc) | |
137 | ||
138 | #define MODULE_DEVICE_TABLE(type,name) \ | |
139 | MODULE_GENERIC_TABLE(type##_device,name) | |
140 | ||
141 | /* Version of form [<epoch>:]<version>[-<extra-version>]. | |
142 | Or for CVS/RCS ID version, everything but the number is stripped. | |
143 | <epoch>: A (small) unsigned integer which allows you to start versions | |
144 | anew. If not mentioned, it's zero. eg. "2:1.0" is after | |
145 | "1:2.0". | |
146 | <version>: The <version> may contain only alphanumerics and the | |
147 | character `.'. Ordered by numeric sort for numeric parts, | |
148 | ascii sort for ascii parts (as per RPM or DEB algorithm). | |
149 | <extraversion>: Like <version>, but inserted for local | |
150 | customizations, eg "rh3" or "rusty1". | |
151 | ||
152 | Using this automatically adds a checksum of the .c files and the | |
153 | local headers in "srcversion". | |
154 | */ | |
155 | #define MODULE_VERSION(_version) MODULE_INFO(version, _version) | |
156 | ||
187afbed JM |
157 | /* Optional firmware file (or files) needed by the module |
158 | * format is simply firmware file name. Multiple firmware | |
159 | * files require multiple MODULE_FIRMWARE() specifiers */ | |
160 | #define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware) | |
161 | ||
1da177e4 LT |
162 | /* Given an address, look for it in the exception tables */ |
163 | const struct exception_table_entry *search_exception_tables(unsigned long add); | |
164 | ||
165 | struct notifier_block; | |
166 | ||
167 | #ifdef CONFIG_MODULES | |
168 | ||
169 | /* Get/put a kernel symbol (calls must be symmetric) */ | |
170 | void *__symbol_get(const char *symbol); | |
171 | void *__symbol_get_gpl(const char *symbol); | |
172 | #define symbol_get(x) ((typeof(&x))(__symbol_get(MODULE_SYMBOL_PREFIX #x))) | |
173 | ||
174 | #ifndef __GENKSYMS__ | |
175 | #ifdef CONFIG_MODVERSIONS | |
176 | /* Mark the CRC weak since genksyms apparently decides not to | |
177 | * generate a checksums for some symbols */ | |
178 | #define __CRC_SYMBOL(sym, sec) \ | |
179 | extern void *__crc_##sym __attribute__((weak)); \ | |
180 | static const unsigned long __kcrctab_##sym \ | |
3ff6eecc | 181 | __used \ |
1da177e4 LT |
182 | __attribute__((section("__kcrctab" sec), unused)) \ |
183 | = (unsigned long) &__crc_##sym; | |
184 | #else | |
185 | #define __CRC_SYMBOL(sym, sec) | |
186 | #endif | |
187 | ||
188 | /* For every exported symbol, place a struct in the __ksymtab section */ | |
189 | #define __EXPORT_SYMBOL(sym, sec) \ | |
a1a8feed | 190 | extern typeof(sym) sym; \ |
1da177e4 LT |
191 | __CRC_SYMBOL(sym, sec) \ |
192 | static const char __kstrtab_##sym[] \ | |
ea01e798 | 193 | __attribute__((section("__ksymtab_strings"), aligned(1))) \ |
1da177e4 LT |
194 | = MODULE_SYMBOL_PREFIX #sym; \ |
195 | static const struct kernel_symbol __ksymtab_##sym \ | |
3ff6eecc | 196 | __used \ |
1da177e4 LT |
197 | __attribute__((section("__ksymtab" sec), unused)) \ |
198 | = { (unsigned long)&sym, __kstrtab_##sym } | |
199 | ||
200 | #define EXPORT_SYMBOL(sym) \ | |
201 | __EXPORT_SYMBOL(sym, "") | |
202 | ||
203 | #define EXPORT_SYMBOL_GPL(sym) \ | |
204 | __EXPORT_SYMBOL(sym, "_gpl") | |
205 | ||
9f28bb7e GKH |
206 | #define EXPORT_SYMBOL_GPL_FUTURE(sym) \ |
207 | __EXPORT_SYMBOL(sym, "_gpl_future") | |
208 | ||
f71d20e9 AV |
209 | |
210 | #ifdef CONFIG_UNUSED_SYMBOLS | |
211 | #define EXPORT_UNUSED_SYMBOL(sym) __EXPORT_SYMBOL(sym, "_unused") | |
212 | #define EXPORT_UNUSED_SYMBOL_GPL(sym) __EXPORT_SYMBOL(sym, "_unused_gpl") | |
213 | #else | |
214 | #define EXPORT_UNUSED_SYMBOL(sym) | |
215 | #define EXPORT_UNUSED_SYMBOL_GPL(sym) | |
216 | #endif | |
217 | ||
1da177e4 LT |
218 | #endif |
219 | ||
220 | struct module_ref | |
221 | { | |
222 | local_t count; | |
223 | } ____cacheline_aligned; | |
224 | ||
225 | enum module_state | |
226 | { | |
227 | MODULE_STATE_LIVE, | |
228 | MODULE_STATE_COMING, | |
229 | MODULE_STATE_GOING, | |
230 | }; | |
231 | ||
1da177e4 LT |
232 | struct module |
233 | { | |
234 | enum module_state state; | |
235 | ||
236 | /* Member of list of modules */ | |
237 | struct list_head list; | |
238 | ||
239 | /* Unique handle for this module */ | |
240 | char name[MODULE_NAME_LEN]; | |
241 | ||
242 | /* Sysfs stuff. */ | |
243 | struct module_kobject mkobj; | |
244 | struct module_param_attrs *param_attrs; | |
03e88ae1 | 245 | struct module_attribute *modinfo_attrs; |
c988d2b2 MD |
246 | const char *version; |
247 | const char *srcversion; | |
270a6c4c | 248 | struct kobject *holders_dir; |
1da177e4 LT |
249 | |
250 | /* Exported symbols */ | |
251 | const struct kernel_symbol *syms; | |
1da177e4 | 252 | const unsigned long *crcs; |
af540689 | 253 | unsigned int num_syms; |
1da177e4 LT |
254 | |
255 | /* GPL-only exported symbols. */ | |
1da177e4 | 256 | unsigned int num_gpl_syms; |
af540689 | 257 | const struct kernel_symbol *gpl_syms; |
1da177e4 LT |
258 | const unsigned long *gpl_crcs; |
259 | ||
f7f5b675 | 260 | #ifdef CONFIG_UNUSED_SYMBOLS |
f71d20e9 AV |
261 | /* unused exported symbols. */ |
262 | const struct kernel_symbol *unused_syms; | |
f71d20e9 | 263 | const unsigned long *unused_crcs; |
af540689 RK |
264 | unsigned int num_unused_syms; |
265 | ||
f71d20e9 | 266 | /* GPL-only, unused exported symbols. */ |
f71d20e9 | 267 | unsigned int num_unused_gpl_syms; |
af540689 | 268 | const struct kernel_symbol *unused_gpl_syms; |
f71d20e9 | 269 | const unsigned long *unused_gpl_crcs; |
f7f5b675 | 270 | #endif |
f71d20e9 | 271 | |
9f28bb7e GKH |
272 | /* symbols that will be GPL-only in the near future. */ |
273 | const struct kernel_symbol *gpl_future_syms; | |
9f28bb7e | 274 | const unsigned long *gpl_future_crcs; |
af540689 | 275 | unsigned int num_gpl_future_syms; |
9f28bb7e | 276 | |
1da177e4 LT |
277 | /* Exception table */ |
278 | unsigned int num_exentries; | |
279 | const struct exception_table_entry *extable; | |
280 | ||
281 | /* Startup function. */ | |
282 | int (*init)(void); | |
283 | ||
284 | /* If this is non-NULL, vfree after init() returns */ | |
285 | void *module_init; | |
286 | ||
287 | /* Here is the actual code + data, vfree'd on unload. */ | |
288 | void *module_core; | |
289 | ||
290 | /* Here are the sizes of the init and core sections */ | |
2f0f2a33 | 291 | unsigned int init_size, core_size; |
1da177e4 LT |
292 | |
293 | /* The size of the executable code in each section. */ | |
2f0f2a33 | 294 | unsigned int init_text_size, core_text_size; |
1da177e4 | 295 | |
4552d5dc JB |
296 | /* The handle returned from unwind_add_table. */ |
297 | void *unwind_info; | |
298 | ||
1da177e4 LT |
299 | /* Arch-specific module values */ |
300 | struct mod_arch_specific arch; | |
301 | ||
2bc2d61a RD |
302 | unsigned int taints; /* same bits as kernel:tainted */ |
303 | ||
7664c5a1 JF |
304 | #ifdef CONFIG_GENERIC_BUG |
305 | /* Support for BUG */ | |
af540689 | 306 | unsigned num_bugs; |
7664c5a1 JF |
307 | struct list_head bug_list; |
308 | struct bug_entry *bug_table; | |
1da177e4 LT |
309 | #endif |
310 | ||
311 | #ifdef CONFIG_KALLSYMS | |
312 | /* We keep the symbol and string tables for kallsyms. */ | |
313 | Elf_Sym *symtab; | |
2f0f2a33 | 314 | unsigned int num_symtab; |
1da177e4 LT |
315 | char *strtab; |
316 | ||
317 | /* Section attributes */ | |
318 | struct module_sect_attrs *sect_attrs; | |
6d760133 RM |
319 | |
320 | /* Notes attributes */ | |
321 | struct module_notes_attrs *notes_attrs; | |
1da177e4 LT |
322 | #endif |
323 | ||
324 | /* Per-cpu data. */ | |
325 | void *percpu; | |
326 | ||
327 | /* The command line arguments (may be mangled). People like | |
328 | keeping pointers to this stuff */ | |
329 | char *args; | |
8256e47c MD |
330 | #ifdef CONFIG_MARKERS |
331 | struct marker *markers; | |
332 | unsigned int num_markers; | |
333 | #endif | |
af540689 RK |
334 | |
335 | #ifdef CONFIG_MODULE_UNLOAD | |
336 | /* What modules depend on me? */ | |
337 | struct list_head modules_which_use_me; | |
338 | ||
339 | /* Who is waiting for us to be unloaded */ | |
340 | struct task_struct *waiter; | |
341 | ||
342 | /* Destruction function. */ | |
343 | void (*exit)(void); | |
344 | ||
345 | /* Reference counts */ | |
346 | struct module_ref ref[NR_CPUS]; | |
347 | #endif | |
348 | ||
1da177e4 | 349 | }; |
e61a1c1c RZ |
350 | #ifndef MODULE_ARCH_INIT |
351 | #define MODULE_ARCH_INIT {} | |
352 | #endif | |
1da177e4 LT |
353 | |
354 | /* FIXME: It'd be nice to isolate modules during init, too, so they | |
355 | aren't used before they (may) fail. But presently too much code | |
356 | (IDE & SCSI) require entry into the module during init.*/ | |
357 | static inline int module_is_live(struct module *mod) | |
358 | { | |
359 | return mod->state != MODULE_STATE_GOING; | |
360 | } | |
361 | ||
362 | /* Is this address in a module? (second is with no locks, for oops) */ | |
363 | struct module *module_text_address(unsigned long addr); | |
364 | struct module *__module_text_address(unsigned long addr); | |
4d435f9d | 365 | int is_module_address(unsigned long addr); |
1da177e4 | 366 | |
ea07890a | 367 | /* Returns 0 and fills in value, defined and namebuf, or -ERANGE if |
1da177e4 | 368 | symnum out of range. */ |
ea07890a AD |
369 | int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type, |
370 | char *name, char *module_name, int *exported); | |
1da177e4 LT |
371 | |
372 | /* Look for this name: can be of form module:name. */ | |
373 | unsigned long module_kallsyms_lookup_name(const char *name); | |
374 | ||
1da177e4 LT |
375 | extern void __module_put_and_exit(struct module *mod, long code) |
376 | __attribute__((noreturn)); | |
377 | #define module_put_and_exit(code) __module_put_and_exit(THIS_MODULE, code); | |
378 | ||
379 | #ifdef CONFIG_MODULE_UNLOAD | |
380 | unsigned int module_refcount(struct module *mod); | |
381 | void __symbol_put(const char *symbol); | |
382 | #define symbol_put(x) __symbol_put(MODULE_SYMBOL_PREFIX #x) | |
383 | void symbol_put_addr(void *addr); | |
384 | ||
385 | /* Sometimes we know we already have a refcount, and it's easier not | |
386 | to handle the error case (which only happens with rmmod --wait). */ | |
387 | static inline void __module_get(struct module *module) | |
388 | { | |
389 | if (module) { | |
390 | BUG_ON(module_refcount(module) == 0); | |
391 | local_inc(&module->ref[get_cpu()].count); | |
392 | put_cpu(); | |
393 | } | |
394 | } | |
395 | ||
396 | static inline int try_module_get(struct module *module) | |
397 | { | |
398 | int ret = 1; | |
399 | ||
400 | if (module) { | |
401 | unsigned int cpu = get_cpu(); | |
402 | if (likely(module_is_live(module))) | |
403 | local_inc(&module->ref[cpu].count); | |
404 | else | |
405 | ret = 0; | |
406 | put_cpu(); | |
407 | } | |
408 | return ret; | |
409 | } | |
410 | ||
f6a57033 | 411 | extern void module_put(struct module *module); |
1da177e4 LT |
412 | |
413 | #else /*!CONFIG_MODULE_UNLOAD*/ | |
414 | static inline int try_module_get(struct module *module) | |
415 | { | |
416 | return !module || module_is_live(module); | |
417 | } | |
418 | static inline void module_put(struct module *module) | |
419 | { | |
420 | } | |
421 | static inline void __module_get(struct module *module) | |
422 | { | |
423 | } | |
424 | #define symbol_put(x) do { } while(0) | |
425 | #define symbol_put_addr(p) do { } while(0) | |
426 | ||
427 | #endif /* CONFIG_MODULE_UNLOAD */ | |
428 | ||
429 | /* This is a #define so the string doesn't get put in every .o file */ | |
430 | #define module_name(mod) \ | |
431 | ({ \ | |
432 | struct module *__mod = (mod); \ | |
433 | __mod ? __mod->name : "kernel"; \ | |
434 | }) | |
435 | ||
6dd06c9f RR |
436 | /* For kallsyms to ask for address resolution. namebuf should be at |
437 | * least KSYM_NAME_LEN long: a pointer to namebuf is returned if | |
438 | * found, otherwise NULL. */ | |
92dfc9dc | 439 | const char *module_address_lookup(unsigned long addr, |
6dd06c9f RR |
440 | unsigned long *symbolsize, |
441 | unsigned long *offset, | |
442 | char **modname, | |
443 | char *namebuf); | |
9d65cb4a | 444 | int lookup_module_symbol_name(unsigned long addr, char *symname); |
a5c43dae | 445 | int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name); |
1da177e4 LT |
446 | |
447 | /* For extable.c to search modules' exception tables. */ | |
448 | const struct exception_table_entry *search_module_extables(unsigned long addr); | |
449 | ||
450 | int register_module_notifier(struct notifier_block * nb); | |
451 | int unregister_module_notifier(struct notifier_block * nb); | |
452 | ||
453 | extern void print_modules(void); | |
454 | ||
fb40bd78 | 455 | extern void module_update_markers(void); |
8256e47c | 456 | |
1da177e4 LT |
457 | #else /* !CONFIG_MODULES... */ |
458 | #define EXPORT_SYMBOL(sym) | |
459 | #define EXPORT_SYMBOL_GPL(sym) | |
9f28bb7e | 460 | #define EXPORT_SYMBOL_GPL_FUTURE(sym) |
f71d20e9 AV |
461 | #define EXPORT_UNUSED_SYMBOL(sym) |
462 | #define EXPORT_UNUSED_SYMBOL_GPL(sym) | |
1da177e4 LT |
463 | |
464 | /* Given an address, look for it in the exception tables. */ | |
465 | static inline const struct exception_table_entry * | |
466 | search_module_extables(unsigned long addr) | |
467 | { | |
468 | return NULL; | |
469 | } | |
470 | ||
471 | /* Is this address in a module? */ | |
472 | static inline struct module *module_text_address(unsigned long addr) | |
473 | { | |
474 | return NULL; | |
475 | } | |
476 | ||
477 | /* Is this address in a module? (don't take a lock, we're oopsing) */ | |
478 | static inline struct module *__module_text_address(unsigned long addr) | |
479 | { | |
480 | return NULL; | |
481 | } | |
482 | ||
4d435f9d IM |
483 | static inline int is_module_address(unsigned long addr) |
484 | { | |
485 | return 0; | |
486 | } | |
487 | ||
1da177e4 LT |
488 | /* Get/put a kernel symbol (calls should be symmetric) */ |
489 | #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak)); &(x); }) | |
490 | #define symbol_put(x) do { } while(0) | |
491 | #define symbol_put_addr(x) do { } while(0) | |
492 | ||
493 | static inline void __module_get(struct module *module) | |
494 | { | |
495 | } | |
496 | ||
497 | static inline int try_module_get(struct module *module) | |
498 | { | |
499 | return 1; | |
500 | } | |
501 | ||
502 | static inline void module_put(struct module *module) | |
503 | { | |
504 | } | |
505 | ||
506 | #define module_name(mod) "kernel" | |
507 | ||
1da177e4 | 508 | /* For kallsyms to ask for address resolution. NULL means not found. */ |
92dfc9dc | 509 | static inline const char *module_address_lookup(unsigned long addr, |
6dd06c9f RR |
510 | unsigned long *symbolsize, |
511 | unsigned long *offset, | |
512 | char **modname, | |
513 | char *namebuf) | |
1da177e4 LT |
514 | { |
515 | return NULL; | |
516 | } | |
517 | ||
9d65cb4a AD |
518 | static inline int lookup_module_symbol_name(unsigned long addr, char *symname) |
519 | { | |
520 | return -ERANGE; | |
521 | } | |
522 | ||
a5c43dae AD |
523 | static inline int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name) |
524 | { | |
525 | return -ERANGE; | |
526 | } | |
527 | ||
ea07890a AD |
528 | static inline int module_get_kallsym(unsigned int symnum, unsigned long *value, |
529 | char *type, char *name, | |
530 | char *module_name, int *exported) | |
1da177e4 | 531 | { |
ea07890a | 532 | return -ERANGE; |
1da177e4 LT |
533 | } |
534 | ||
535 | static inline unsigned long module_kallsyms_lookup_name(const char *name) | |
536 | { | |
537 | return 0; | |
538 | } | |
539 | ||
1da177e4 LT |
540 | static inline int register_module_notifier(struct notifier_block * nb) |
541 | { | |
542 | /* no events will happen anyway, so this can always succeed */ | |
543 | return 0; | |
544 | } | |
545 | ||
546 | static inline int unregister_module_notifier(struct notifier_block * nb) | |
547 | { | |
548 | return 0; | |
549 | } | |
550 | ||
551 | #define module_put_and_exit(code) do_exit(code) | |
552 | ||
553 | static inline void print_modules(void) | |
554 | { | |
555 | } | |
556 | ||
1387d0d8 | 557 | static inline void module_update_markers(void) |
8256e47c MD |
558 | { |
559 | } | |
560 | ||
ef665c1a RD |
561 | #endif /* CONFIG_MODULES */ |
562 | ||
1da177e4 | 563 | struct device_driver; |
ef665c1a | 564 | #ifdef CONFIG_SYSFS |
1da177e4 LT |
565 | struct module; |
566 | ||
7405c1e1 GKH |
567 | extern struct kset *module_kset; |
568 | extern struct kobj_type module_ktype; | |
569 | extern int module_sysfs_initialized; | |
ef665c1a RD |
570 | |
571 | int mod_sysfs_init(struct module *mod); | |
572 | int mod_sysfs_setup(struct module *mod, | |
573 | struct kernel_param *kparam, | |
574 | unsigned int num_params); | |
575 | int module_add_modinfo_attrs(struct module *mod); | |
576 | void module_remove_modinfo_attrs(struct module *mod); | |
577 | ||
578 | #else /* !CONFIG_SYSFS */ | |
579 | ||
580 | static inline int mod_sysfs_init(struct module *mod) | |
1da177e4 | 581 | { |
ef665c1a | 582 | return 0; |
1da177e4 LT |
583 | } |
584 | ||
ef665c1a RD |
585 | static inline int mod_sysfs_setup(struct module *mod, |
586 | struct kernel_param *kparam, | |
587 | unsigned int num_params) | |
1da177e4 | 588 | { |
ef665c1a | 589 | return 0; |
1da177e4 LT |
590 | } |
591 | ||
ef665c1a RD |
592 | static inline int module_add_modinfo_attrs(struct module *mod) |
593 | { | |
594 | return 0; | |
595 | } | |
596 | ||
597 | static inline void module_remove_modinfo_attrs(struct module *mod) | |
598 | { } | |
599 | ||
600 | #endif /* CONFIG_SYSFS */ | |
601 | ||
1da177e4 LT |
602 | #define symbol_request(x) try_then_request_module(symbol_get(x), "symbol:" #x) |
603 | ||
604 | /* BELOW HERE ALL THESE ARE OBSOLETE AND WILL VANISH */ | |
605 | ||
1da177e4 LT |
606 | #define __MODULE_STRING(x) __stringify(x) |
607 | ||
1da177e4 | 608 | #endif /* _LINUX_MODULE_H */ |