1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Dynamic loading of modules into the kernel.
6 * Rewritten again by Rusty Russell, 2002
9 #ifndef _LINUX_MODULE_H
10 #define _LINUX_MODULE_H
12 #include <linux/list.h>
13 #include <linux/stat.h>
14 #include <linux/compiler.h>
15 #include <linux/cache.h>
16 #include <linux/kmod.h>
17 #include <linux/init.h>
18 #include <linux/elf.h>
19 #include <linux/stringify.h>
20 #include <linux/kobject.h>
21 #include <linux/moduleparam.h>
22 #include <linux/jump_label.h>
23 #include <linux/export.h>
24 #include <linux/rbtree_latch.h>
25 #include <linux/error-injection.h>
26 #include <linux/tracepoint-defs.h>
27 #include <linux/srcu.h>
29 #include <linux/percpu.h>
30 #include <asm/module.h>
32 /* Not Yet Implemented */
33 #define MODULE_SUPPORTED_DEVICE(name)
35 #define MODULE_NAME_LEN MAX_PARAM_PREFIX_LEN
37 struct modversion_info {
39 char name[MODULE_NAME_LEN];
43 struct exception_table_entry;
45 struct module_kobject {
48 struct kobject *drivers_dir;
49 struct module_param_attrs *mp;
50 struct completion *kobj_completion;
53 struct module_attribute {
54 struct attribute attr;
55 ssize_t (*show)(struct module_attribute *, struct module_kobject *,
57 ssize_t (*store)(struct module_attribute *, struct module_kobject *,
58 const char *, size_t count);
59 void (*setup)(struct module *, const char *);
60 int (*test)(struct module *);
61 void (*free)(struct module *);
64 struct module_version_attribute {
65 struct module_attribute mattr;
66 const char *module_name;
68 } __attribute__ ((__aligned__(sizeof(void *))));
70 extern ssize_t __modver_version_show(struct module_attribute *,
71 struct module_kobject *, char *);
73 extern struct module_attribute module_uevent;
75 /* These are either module local, or the kernel's dummy ones. */
76 extern int init_module(void);
77 extern void cleanup_module(void);
81 * module_init() - driver initialization entry point
82 * @x: function to be run at kernel boot time or module insertion
84 * module_init() will either be called during do_initcalls() (if
85 * builtin) or at module insertion time (if a module). There can only
88 #define module_init(x) __initcall(x);
91 * module_exit() - driver exit entry point
92 * @x: function to be run when driver is removed
94 * module_exit() will wrap the driver clean-up code
95 * with cleanup_module() when used with rmmod when
96 * the driver is a module. If the driver is statically
97 * compiled into the kernel, module_exit() has no effect.
98 * There can only be one per module.
100 #define module_exit(x) __exitcall(x);
105 * In most cases loadable modules do not need custom
106 * initcall levels. There are still some valid cases where
107 * a driver may be needed early if built in, and does not
108 * matter when built as a loadable module. Like bus
109 * snooping debug drivers.
111 #define early_initcall(fn) module_init(fn)
112 #define core_initcall(fn) module_init(fn)
113 #define core_initcall_sync(fn) module_init(fn)
114 #define postcore_initcall(fn) module_init(fn)
115 #define postcore_initcall_sync(fn) module_init(fn)
116 #define arch_initcall(fn) module_init(fn)
117 #define subsys_initcall(fn) module_init(fn)
118 #define subsys_initcall_sync(fn) module_init(fn)
119 #define fs_initcall(fn) module_init(fn)
120 #define fs_initcall_sync(fn) module_init(fn)
121 #define rootfs_initcall(fn) module_init(fn)
122 #define device_initcall(fn) module_init(fn)
123 #define device_initcall_sync(fn) module_init(fn)
124 #define late_initcall(fn) module_init(fn)
125 #define late_initcall_sync(fn) module_init(fn)
127 #define console_initcall(fn) module_init(fn)
129 /* Each module must use one module_init(). */
130 #define module_init(initfn) \
131 static inline initcall_t __maybe_unused __inittest(void) \
133 int init_module(void) __copy(initfn) __attribute__((alias(#initfn)));
135 /* This is only required if you want to be unloadable. */
136 #define module_exit(exitfn) \
137 static inline exitcall_t __maybe_unused __exittest(void) \
139 void cleanup_module(void) __copy(exitfn) __attribute__((alias(#exitfn)));
143 /* This means "can be init if no module support, otherwise module load
145 #ifdef CONFIG_MODULES
146 #define __init_or_module
147 #define __initdata_or_module
148 #define __initconst_or_module
149 #define __INIT_OR_MODULE .text
150 #define __INITDATA_OR_MODULE .data
151 #define __INITRODATA_OR_MODULE .section ".rodata","a",%progbits
153 #define __init_or_module __init
154 #define __initdata_or_module __initdata
155 #define __initconst_or_module __initconst
156 #define __INIT_OR_MODULE __INIT
157 #define __INITDATA_OR_MODULE __INITDATA
158 #define __INITRODATA_OR_MODULE __INITRODATA
159 #endif /*CONFIG_MODULES*/
161 /* Generic info of form tag = "info" */
162 #define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info)
164 /* For userspace: you can also call me... */
165 #define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias)
167 /* Soft module dependencies. See man modprobe.d for details.
168 * Example: MODULE_SOFTDEP("pre: module-foo module-bar post: module-baz")
170 #define MODULE_SOFTDEP(_softdep) MODULE_INFO(softdep, _softdep)
173 * MODULE_FILE is used for generating modules.builtin
174 * So, make it no-op when this is being built as a module
179 #define MODULE_FILE MODULE_INFO(file, KBUILD_MODFILE);
183 * The following license idents are currently accepted as indicating free
186 * "GPL" [GNU Public License v2]
187 * "GPL v2" [GNU Public License v2]
188 * "GPL and additional rights" [GNU Public License v2 rights and more]
189 * "Dual BSD/GPL" [GNU Public License v2
190 * or BSD license choice]
191 * "Dual MIT/GPL" [GNU Public License v2
192 * or MIT license choice]
193 * "Dual MPL/GPL" [GNU Public License v2
194 * or Mozilla license choice]
196 * The following other idents are available
198 * "Proprietary" [Non free products]
200 * Both "GPL v2" and "GPL" (the latter also in dual licensed strings) are
201 * merely stating that the module is licensed under the GPL v2, but are not
202 * telling whether "GPL v2 only" or "GPL v2 or later". The reason why there
203 * are two variants is a historic and failed attempt to convey more
204 * information in the MODULE_LICENSE string. For module loading the
205 * "only/or later" distinction is completely irrelevant and does neither
206 * replace the proper license identifiers in the corresponding source file
207 * nor amends them in any way. The sole purpose is to make the
208 * 'Proprietary' flagging work and to refuse to bind symbols which are
209 * exported with EXPORT_SYMBOL_GPL when a non free module is loaded.
211 * In the same way "BSD" is not a clear license information. It merely
212 * states, that the module is licensed under one of the compatible BSD
213 * license variants. The detailed and correct license information is again
214 * to be found in the corresponding source files.
216 * There are dual licensed components, but when running with Linux it is the
217 * GPL that is relevant so this is a non issue. Similarly LGPL linked with GPL
218 * is a GPL combined work.
220 * This exists for several reasons
221 * 1. So modinfo can show license info for users wanting to vet their setup
223 * 2. So the community can ignore bug reports including proprietary modules
224 * 3. So vendors can do likewise based on their own policies
226 #define MODULE_LICENSE(_license) MODULE_FILE MODULE_INFO(license, _license)
229 * Author(s), use "Name <email>" or just "Name", for multiple
230 * authors use multiple MODULE_AUTHOR() statements/lines.
232 #define MODULE_AUTHOR(_author) MODULE_INFO(author, _author)
234 /* What your module does. */
235 #define MODULE_DESCRIPTION(_description) MODULE_INFO(description, _description)
238 /* Creates an alias so file2alias.c can find device table. */
239 #define MODULE_DEVICE_TABLE(type, name) \
240 extern typeof(name) __mod_##type##__##name##_device_table \
241 __attribute__ ((unused, alias(__stringify(name))))
243 #define MODULE_DEVICE_TABLE(type, name)
246 /* Version of form [<epoch>:]<version>[-<extra-version>].
247 * Or for CVS/RCS ID version, everything but the number is stripped.
248 * <epoch>: A (small) unsigned integer which allows you to start versions
249 * anew. If not mentioned, it's zero. eg. "2:1.0" is after
252 * <version>: The <version> may contain only alphanumerics and the
253 * character `.'. Ordered by numeric sort for numeric parts,
254 * ascii sort for ascii parts (as per RPM or DEB algorithm).
256 * <extraversion>: Like <version>, but inserted for local
257 * customizations, eg "rh3" or "rusty1".
259 * Using this automatically adds a checksum of the .c files and the
260 * local headers in "srcversion".
263 #if defined(MODULE) || !defined(CONFIG_SYSFS)
264 #define MODULE_VERSION(_version) MODULE_INFO(version, _version)
266 #define MODULE_VERSION(_version) \
267 MODULE_INFO(version, _version); \
268 static struct module_version_attribute ___modver_attr = { \
274 .show = __modver_version_show, \
276 .module_name = KBUILD_MODNAME, \
277 .version = _version, \
279 static const struct module_version_attribute \
280 __used __attribute__ ((__section__ ("__modver"))) \
281 * __moduleparam_const __modver_attr = &___modver_attr
284 /* Optional firmware file (or files) needed by the module
285 * format is simply firmware file name. Multiple firmware
286 * files require multiple MODULE_FIRMWARE() specifiers */
287 #define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware)
289 #define MODULE_IMPORT_NS(ns) MODULE_INFO(import_ns, #ns)
291 struct notifier_block;
293 #ifdef CONFIG_MODULES
295 extern int modules_disabled; /* for sysctl */
296 /* Get/put a kernel symbol (calls must be symmetric) */
297 void *__symbol_get(const char *symbol);
298 void *__symbol_get_gpl(const char *symbol);
299 #define symbol_get(x) ((typeof(&x))(__symbol_get(__stringify(x))))
301 /* modules using other modules: kdb wants to see this. */
303 struct list_head source_list;
304 struct list_head target_list;
305 struct module *source, *target;
309 MODULE_STATE_LIVE, /* Normal state. */
310 MODULE_STATE_COMING, /* Full formed, running module_init. */
311 MODULE_STATE_GOING, /* Going away. */
312 MODULE_STATE_UNFORMED, /* Still setting it up. */
315 struct mod_tree_node {
317 struct latch_tree_node node;
320 struct module_layout {
321 /* The actual code + data. */
325 /* The size of the executable code. */
326 unsigned int text_size;
327 /* Size of RO section of the module (text+rodata) */
328 unsigned int ro_size;
329 /* Size of RO after init section */
330 unsigned int ro_after_init_size;
332 #ifdef CONFIG_MODULES_TREE_LOOKUP
333 struct mod_tree_node mtn;
337 #ifdef CONFIG_MODULES_TREE_LOOKUP
338 /* Only touch one cacheline for common rbtree-for-core-layout case. */
339 #define __module_layout_align ____cacheline_aligned
341 #define __module_layout_align
344 struct mod_kallsyms {
346 unsigned int num_symtab;
351 #ifdef CONFIG_LIVEPATCH
361 enum module_state state;
363 /* Member of list of modules */
364 struct list_head list;
366 /* Unique handle for this module */
367 char name[MODULE_NAME_LEN];
370 struct module_kobject mkobj;
371 struct module_attribute *modinfo_attrs;
373 const char *srcversion;
374 struct kobject *holders_dir;
376 /* Exported symbols */
377 const struct kernel_symbol *syms;
379 unsigned int num_syms;
381 /* Kernel parameters. */
383 struct mutex param_lock;
385 struct kernel_param *kp;
388 /* GPL-only exported symbols. */
389 unsigned int num_gpl_syms;
390 const struct kernel_symbol *gpl_syms;
393 #ifdef CONFIG_UNUSED_SYMBOLS
394 /* unused exported symbols. */
395 const struct kernel_symbol *unused_syms;
396 const s32 *unused_crcs;
397 unsigned int num_unused_syms;
399 /* GPL-only, unused exported symbols. */
400 unsigned int num_unused_gpl_syms;
401 const struct kernel_symbol *unused_gpl_syms;
402 const s32 *unused_gpl_crcs;
405 #ifdef CONFIG_MODULE_SIG
406 /* Signature was verified. */
410 bool async_probe_requested;
412 /* symbols that will be GPL-only in the near future. */
413 const struct kernel_symbol *gpl_future_syms;
414 const s32 *gpl_future_crcs;
415 unsigned int num_gpl_future_syms;
417 /* Exception table */
418 unsigned int num_exentries;
419 struct exception_table_entry *extable;
421 /* Startup function. */
424 /* Core layout: rbtree is accessed frequently, so keep together. */
425 struct module_layout core_layout __module_layout_align;
426 struct module_layout init_layout;
428 /* Arch-specific module values */
429 struct mod_arch_specific arch;
431 unsigned long taints; /* same bits as kernel:taint_flags */
433 #ifdef CONFIG_GENERIC_BUG
434 /* Support for BUG */
436 struct list_head bug_list;
437 struct bug_entry *bug_table;
440 #ifdef CONFIG_KALLSYMS
441 /* Protected by RCU and/or module_mutex: use rcu_dereference() */
442 struct mod_kallsyms __rcu *kallsyms;
443 struct mod_kallsyms core_kallsyms;
445 /* Section attributes */
446 struct module_sect_attrs *sect_attrs;
448 /* Notes attributes */
449 struct module_notes_attrs *notes_attrs;
452 /* The command line arguments (may be mangled). People like
453 keeping pointers to this stuff */
458 void __percpu *percpu;
459 unsigned int percpu_size;
462 #ifdef CONFIG_TRACEPOINTS
463 unsigned int num_tracepoints;
464 tracepoint_ptr_t *tracepoints_ptrs;
466 #ifdef CONFIG_TREE_SRCU
467 unsigned int num_srcu_structs;
468 struct srcu_struct **srcu_struct_ptrs;
470 #ifdef CONFIG_BPF_EVENTS
471 unsigned int num_bpf_raw_events;
472 struct bpf_raw_event_map *bpf_raw_events;
474 #ifdef CONFIG_JUMP_LABEL
475 struct jump_entry *jump_entries;
476 unsigned int num_jump_entries;
478 #ifdef CONFIG_TRACING
479 unsigned int num_trace_bprintk_fmt;
480 const char **trace_bprintk_fmt_start;
482 #ifdef CONFIG_EVENT_TRACING
483 struct trace_event_call **trace_events;
484 unsigned int num_trace_events;
485 struct trace_eval_map **trace_evals;
486 unsigned int num_trace_evals;
488 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
489 unsigned int num_ftrace_callsites;
490 unsigned long *ftrace_callsites;
493 #ifdef CONFIG_LIVEPATCH
494 bool klp; /* Is this a livepatch module? */
497 /* Elf information */
498 struct klp_modinfo *klp_info;
501 #ifdef CONFIG_MODULE_UNLOAD
502 /* What modules depend on me? */
503 struct list_head source_list;
504 /* What modules do I depend on? */
505 struct list_head target_list;
507 /* Destruction function. */
513 #ifdef CONFIG_CONSTRUCTORS
514 /* Constructor functions. */
516 unsigned int num_ctors;
519 #ifdef CONFIG_FUNCTION_ERROR_INJECTION
520 struct error_injection_entry *ei_funcs;
521 unsigned int num_ei_funcs;
523 } ____cacheline_aligned __randomize_layout;
524 #ifndef MODULE_ARCH_INIT
525 #define MODULE_ARCH_INIT {}
528 #ifndef HAVE_ARCH_KALLSYMS_SYMBOL_VALUE
529 static inline unsigned long kallsyms_symbol_value(const Elf_Sym *sym)
531 return sym->st_value;
535 extern struct mutex module_mutex;
537 /* FIXME: It'd be nice to isolate modules during init, too, so they
538 aren't used before they (may) fail. But presently too much code
539 (IDE & SCSI) require entry into the module during init.*/
540 static inline bool module_is_live(struct module *mod)
542 return mod->state != MODULE_STATE_GOING;
545 struct module *__module_text_address(unsigned long addr);
546 struct module *__module_address(unsigned long addr);
547 bool is_module_address(unsigned long addr);
548 bool __is_module_percpu_address(unsigned long addr, unsigned long *can_addr);
549 bool is_module_percpu_address(unsigned long addr);
550 bool is_module_text_address(unsigned long addr);
552 static inline bool within_module_core(unsigned long addr,
553 const struct module *mod)
555 return (unsigned long)mod->core_layout.base <= addr &&
556 addr < (unsigned long)mod->core_layout.base + mod->core_layout.size;
559 static inline bool within_module_init(unsigned long addr,
560 const struct module *mod)
562 return (unsigned long)mod->init_layout.base <= addr &&
563 addr < (unsigned long)mod->init_layout.base + mod->init_layout.size;
566 static inline bool within_module(unsigned long addr, const struct module *mod)
568 return within_module_init(addr, mod) || within_module_core(addr, mod);
571 /* Search for module by name: must hold module_mutex. */
572 struct module *find_module(const char *name);
575 const struct kernel_symbol *start, *stop;
586 * Search for an exported symbol by name.
588 * Must be called with module_mutex held or preemption disabled.
590 const struct kernel_symbol *find_symbol(const char *name,
591 struct module **owner,
597 * Walk the exported symbol table
599 * Must be called with module_mutex held or preemption disabled.
601 bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
602 struct module *owner,
603 void *data), void *data);
605 /* Returns 0 and fills in value, defined and namebuf, or -ERANGE if
606 symnum out of range. */
607 int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
608 char *name, char *module_name, int *exported);
610 /* Look for this name: can be of form module:name. */
611 unsigned long module_kallsyms_lookup_name(const char *name);
613 int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
614 struct module *, unsigned long),
617 extern void __noreturn __module_put_and_exit(struct module *mod,
619 #define module_put_and_exit(code) __module_put_and_exit(THIS_MODULE, code)
621 #ifdef CONFIG_MODULE_UNLOAD
622 int module_refcount(struct module *mod);
623 void __symbol_put(const char *symbol);
624 #define symbol_put(x) __symbol_put(__stringify(x))
625 void symbol_put_addr(void *addr);
627 /* Sometimes we know we already have a refcount, and it's easier not
628 to handle the error case (which only happens with rmmod --wait). */
629 extern void __module_get(struct module *module);
631 /* This is the Right Way to get a module: if it fails, it's being removed,
632 * so pretend it's not there. */
633 extern bool try_module_get(struct module *module);
635 extern void module_put(struct module *module);
637 #else /*!CONFIG_MODULE_UNLOAD*/
638 static inline bool try_module_get(struct module *module)
640 return !module || module_is_live(module);
642 static inline void module_put(struct module *module)
645 static inline void __module_get(struct module *module)
648 #define symbol_put(x) do { } while (0)
649 #define symbol_put_addr(p) do { } while (0)
651 #endif /* CONFIG_MODULE_UNLOAD */
652 int ref_module(struct module *a, struct module *b);
654 /* This is a #define so the string doesn't get put in every .o file */
655 #define module_name(mod) \
657 struct module *__mod = (mod); \
658 __mod ? __mod->name : "kernel"; \
661 /* Dereference module function descriptor */
662 void *dereference_module_function_descriptor(struct module *mod, void *ptr);
664 /* For kallsyms to ask for address resolution. namebuf should be at
665 * least KSYM_NAME_LEN long: a pointer to namebuf is returned if
666 * found, otherwise NULL. */
667 const char *module_address_lookup(unsigned long addr,
668 unsigned long *symbolsize,
669 unsigned long *offset,
672 int lookup_module_symbol_name(unsigned long addr, char *symname);
673 int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name);
675 int register_module_notifier(struct notifier_block *nb);
676 int unregister_module_notifier(struct notifier_block *nb);
678 extern void print_modules(void);
680 static inline bool module_requested_async_probing(struct module *module)
682 return module && module->async_probe_requested;
685 #ifdef CONFIG_LIVEPATCH
686 static inline bool is_livepatch_module(struct module *mod)
690 #else /* !CONFIG_LIVEPATCH */
691 static inline bool is_livepatch_module(struct module *mod)
695 #endif /* CONFIG_LIVEPATCH */
697 bool is_module_sig_enforced(void);
698 void set_module_sig_enforced(void);
700 #else /* !CONFIG_MODULES... */
702 static inline struct module *__module_address(unsigned long addr)
707 static inline struct module *__module_text_address(unsigned long addr)
712 static inline bool is_module_address(unsigned long addr)
717 static inline bool is_module_percpu_address(unsigned long addr)
722 static inline bool __is_module_percpu_address(unsigned long addr, unsigned long *can_addr)
727 static inline bool is_module_text_address(unsigned long addr)
732 static inline bool within_module_core(unsigned long addr,
733 const struct module *mod)
738 static inline bool within_module_init(unsigned long addr,
739 const struct module *mod)
744 static inline bool within_module(unsigned long addr, const struct module *mod)
749 /* Get/put a kernel symbol (calls should be symmetric) */
750 #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak)); &(x); })
751 #define symbol_put(x) do { } while (0)
752 #define symbol_put_addr(x) do { } while (0)
754 static inline void __module_get(struct module *module)
758 static inline bool try_module_get(struct module *module)
763 static inline void module_put(struct module *module)
767 #define module_name(mod) "kernel"
769 /* For kallsyms to ask for address resolution. NULL means not found. */
770 static inline const char *module_address_lookup(unsigned long addr,
771 unsigned long *symbolsize,
772 unsigned long *offset,
779 static inline int lookup_module_symbol_name(unsigned long addr, char *symname)
784 static inline int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name)
789 static inline int module_get_kallsym(unsigned int symnum, unsigned long *value,
790 char *type, char *name,
791 char *module_name, int *exported)
796 static inline unsigned long module_kallsyms_lookup_name(const char *name)
801 static inline int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
809 static inline int register_module_notifier(struct notifier_block *nb)
811 /* no events will happen anyway, so this can always succeed */
815 static inline int unregister_module_notifier(struct notifier_block *nb)
820 #define module_put_and_exit(code) do_exit(code)
822 static inline void print_modules(void)
826 static inline bool module_requested_async_probing(struct module *module)
831 static inline bool is_module_sig_enforced(void)
836 static inline void set_module_sig_enforced(void)
840 /* Dereference module function descriptor */
842 void *dereference_module_function_descriptor(struct module *mod, void *ptr)
847 #endif /* CONFIG_MODULES */
850 extern struct kset *module_kset;
851 extern struct kobj_type module_ktype;
852 extern int module_sysfs_initialized;
853 #endif /* CONFIG_SYSFS */
855 #define symbol_request(x) try_then_request_module(symbol_get(x), "symbol:" #x)
857 /* BELOW HERE ALL THESE ARE OBSOLETE AND WILL VANISH */
859 #define __MODULE_STRING(x) __stringify(x)
861 #ifdef CONFIG_STRICT_MODULE_RWX
862 extern void module_enable_ro(const struct module *mod, bool after_init);
863 extern void module_disable_ro(const struct module *mod);
865 static inline void module_enable_ro(const struct module *mod, bool after_init) { }
866 static inline void module_disable_ro(const struct module *mod) { }
869 #ifdef CONFIG_GENERIC_BUG
870 void module_bug_finalize(const Elf_Ehdr *, const Elf_Shdr *,
872 void module_bug_cleanup(struct module *);
874 #else /* !CONFIG_GENERIC_BUG */
876 static inline void module_bug_finalize(const Elf_Ehdr *hdr,
877 const Elf_Shdr *sechdrs,
881 static inline void module_bug_cleanup(struct module *mod) {}
882 #endif /* CONFIG_GENERIC_BUG */
884 #ifdef CONFIG_RETPOLINE
885 extern bool retpoline_module_ok(bool has_retpoline);
887 static inline bool retpoline_module_ok(bool has_retpoline)
893 #ifdef CONFIG_MODULE_SIG
894 static inline bool module_sig_ok(struct module *module)
896 return module->sig_ok;
898 #else /* !CONFIG_MODULE_SIG */
899 static inline bool module_sig_ok(struct module *module)
903 #endif /* CONFIG_MODULE_SIG */
905 #endif /* _LINUX_MODULE_H */