1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Dynamic loading of modules into the kernel.
5 * Rewritten by Richard Henderson <rth@tamu.edu> Dec 1996
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 * The following license idents are currently accepted as indicating free
176 * "GPL" [GNU Public License v2]
177 * "GPL v2" [GNU Public License v2]
178 * "GPL and additional rights" [GNU Public License v2 rights and more]
179 * "Dual BSD/GPL" [GNU Public License v2
180 * or BSD license choice]
181 * "Dual MIT/GPL" [GNU Public License v2
182 * or MIT license choice]
183 * "Dual MPL/GPL" [GNU Public License v2
184 * or Mozilla license choice]
186 * The following other idents are available
188 * "Proprietary" [Non free products]
190 * Both "GPL v2" and "GPL" (the latter also in dual licensed strings) are
191 * merely stating that the module is licensed under the GPL v2, but are not
192 * telling whether "GPL v2 only" or "GPL v2 or later". The reason why there
193 * are two variants is a historic and failed attempt to convey more
194 * information in the MODULE_LICENSE string. For module loading the
195 * "only/or later" distinction is completely irrelevant and does neither
196 * replace the proper license identifiers in the corresponding source file
197 * nor amends them in any way. The sole purpose is to make the
198 * 'Proprietary' flagging work and to refuse to bind symbols which are
199 * exported with EXPORT_SYMBOL_GPL when a non free module is loaded.
201 * In the same way "BSD" is not a clear license information. It merely
202 * states, that the module is licensed under one of the compatible BSD
203 * license variants. The detailed and correct license information is again
204 * to be found in the corresponding source files.
206 * There are dual licensed components, but when running with Linux it is the
207 * GPL that is relevant so this is a non issue. Similarly LGPL linked with GPL
208 * is a GPL combined work.
210 * This exists for several reasons
211 * 1. So modinfo can show license info for users wanting to vet their setup
213 * 2. So the community can ignore bug reports including proprietary modules
214 * 3. So vendors can do likewise based on their own policies
216 #define MODULE_LICENSE(_license) MODULE_INFO(license, _license)
219 * Author(s), use "Name <email>" or just "Name", for multiple
220 * authors use multiple MODULE_AUTHOR() statements/lines.
222 #define MODULE_AUTHOR(_author) MODULE_INFO(author, _author)
224 /* What your module does. */
225 #define MODULE_DESCRIPTION(_description) MODULE_INFO(description, _description)
228 /* Creates an alias so file2alias.c can find device table. */
229 #define MODULE_DEVICE_TABLE(type, name) \
230 extern typeof(name) __mod_##type##__##name##_device_table \
231 __attribute__ ((unused, alias(__stringify(name))))
233 #define MODULE_DEVICE_TABLE(type, name)
236 /* Version of form [<epoch>:]<version>[-<extra-version>].
237 * Or for CVS/RCS ID version, everything but the number is stripped.
238 * <epoch>: A (small) unsigned integer which allows you to start versions
239 * anew. If not mentioned, it's zero. eg. "2:1.0" is after
242 * <version>: The <version> may contain only alphanumerics and the
243 * character `.'. Ordered by numeric sort for numeric parts,
244 * ascii sort for ascii parts (as per RPM or DEB algorithm).
246 * <extraversion>: Like <version>, but inserted for local
247 * customizations, eg "rh3" or "rusty1".
249 * Using this automatically adds a checksum of the .c files and the
250 * local headers in "srcversion".
253 #if defined(MODULE) || !defined(CONFIG_SYSFS)
254 #define MODULE_VERSION(_version) MODULE_INFO(version, _version)
256 #define MODULE_VERSION(_version) \
257 MODULE_INFO(version, _version); \
258 static struct module_version_attribute ___modver_attr = { \
264 .show = __modver_version_show, \
266 .module_name = KBUILD_MODNAME, \
267 .version = _version, \
269 static const struct module_version_attribute \
270 __used __attribute__ ((__section__ ("__modver"))) \
271 * __moduleparam_const __modver_attr = &___modver_attr
274 /* Optional firmware file (or files) needed by the module
275 * format is simply firmware file name. Multiple firmware
276 * files require multiple MODULE_FIRMWARE() specifiers */
277 #define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware)
279 #define MODULE_IMPORT_NS(ns) MODULE_INFO(import_ns, #ns)
281 struct notifier_block;
283 #ifdef CONFIG_MODULES
285 extern int modules_disabled; /* for sysctl */
286 /* Get/put a kernel symbol (calls must be symmetric) */
287 void *__symbol_get(const char *symbol);
288 void *__symbol_get_gpl(const char *symbol);
289 #define symbol_get(x) ((typeof(&x))(__symbol_get(__stringify(x))))
291 /* modules using other modules: kdb wants to see this. */
293 struct list_head source_list;
294 struct list_head target_list;
295 struct module *source, *target;
299 MODULE_STATE_LIVE, /* Normal state. */
300 MODULE_STATE_COMING, /* Full formed, running module_init. */
301 MODULE_STATE_GOING, /* Going away. */
302 MODULE_STATE_UNFORMED, /* Still setting it up. */
305 struct mod_tree_node {
307 struct latch_tree_node node;
310 struct module_layout {
311 /* The actual code + data. */
315 /* The size of the executable code. */
316 unsigned int text_size;
317 /* Size of RO section of the module (text+rodata) */
318 unsigned int ro_size;
319 /* Size of RO after init section */
320 unsigned int ro_after_init_size;
322 #ifdef CONFIG_MODULES_TREE_LOOKUP
323 struct mod_tree_node mtn;
327 #ifdef CONFIG_MODULES_TREE_LOOKUP
328 /* Only touch one cacheline for common rbtree-for-core-layout case. */
329 #define __module_layout_align ____cacheline_aligned
331 #define __module_layout_align
334 struct mod_kallsyms {
336 unsigned int num_symtab;
341 #ifdef CONFIG_LIVEPATCH
351 enum module_state state;
353 /* Member of list of modules */
354 struct list_head list;
356 /* Unique handle for this module */
357 char name[MODULE_NAME_LEN];
360 struct module_kobject mkobj;
361 struct module_attribute *modinfo_attrs;
363 const char *srcversion;
364 struct kobject *holders_dir;
366 /* Exported symbols */
367 const struct kernel_symbol *syms;
369 unsigned int num_syms;
371 /* Kernel parameters. */
373 struct mutex param_lock;
375 struct kernel_param *kp;
378 /* GPL-only exported symbols. */
379 unsigned int num_gpl_syms;
380 const struct kernel_symbol *gpl_syms;
383 #ifdef CONFIG_UNUSED_SYMBOLS
384 /* unused exported symbols. */
385 const struct kernel_symbol *unused_syms;
386 const s32 *unused_crcs;
387 unsigned int num_unused_syms;
389 /* GPL-only, unused exported symbols. */
390 unsigned int num_unused_gpl_syms;
391 const struct kernel_symbol *unused_gpl_syms;
392 const s32 *unused_gpl_crcs;
395 #ifdef CONFIG_MODULE_SIG
396 /* Signature was verified. */
400 bool async_probe_requested;
402 /* symbols that will be GPL-only in the near future. */
403 const struct kernel_symbol *gpl_future_syms;
404 const s32 *gpl_future_crcs;
405 unsigned int num_gpl_future_syms;
407 /* Exception table */
408 unsigned int num_exentries;
409 struct exception_table_entry *extable;
411 /* Startup function. */
414 /* Core layout: rbtree is accessed frequently, so keep together. */
415 struct module_layout core_layout __module_layout_align;
416 struct module_layout init_layout;
418 /* Arch-specific module values */
419 struct mod_arch_specific arch;
421 unsigned long taints; /* same bits as kernel:taint_flags */
423 #ifdef CONFIG_GENERIC_BUG
424 /* Support for BUG */
426 struct list_head bug_list;
427 struct bug_entry *bug_table;
430 #ifdef CONFIG_KALLSYMS
431 /* Protected by RCU and/or module_mutex: use rcu_dereference() */
432 struct mod_kallsyms *kallsyms;
433 struct mod_kallsyms core_kallsyms;
435 /* Section attributes */
436 struct module_sect_attrs *sect_attrs;
438 /* Notes attributes */
439 struct module_notes_attrs *notes_attrs;
442 /* The command line arguments (may be mangled). People like
443 keeping pointers to this stuff */
448 void __percpu *percpu;
449 unsigned int percpu_size;
452 #ifdef CONFIG_TRACEPOINTS
453 unsigned int num_tracepoints;
454 tracepoint_ptr_t *tracepoints_ptrs;
456 #ifdef CONFIG_TREE_SRCU
457 unsigned int num_srcu_structs;
458 struct srcu_struct **srcu_struct_ptrs;
460 #ifdef CONFIG_BPF_EVENTS
461 unsigned int num_bpf_raw_events;
462 struct bpf_raw_event_map *bpf_raw_events;
464 #ifdef CONFIG_JUMP_LABEL
465 struct jump_entry *jump_entries;
466 unsigned int num_jump_entries;
468 #ifdef CONFIG_TRACING
469 unsigned int num_trace_bprintk_fmt;
470 const char **trace_bprintk_fmt_start;
472 #ifdef CONFIG_EVENT_TRACING
473 struct trace_event_call **trace_events;
474 unsigned int num_trace_events;
475 struct trace_eval_map **trace_evals;
476 unsigned int num_trace_evals;
478 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
479 unsigned int num_ftrace_callsites;
480 unsigned long *ftrace_callsites;
483 #ifdef CONFIG_LIVEPATCH
484 bool klp; /* Is this a livepatch module? */
487 /* Elf information */
488 struct klp_modinfo *klp_info;
491 #ifdef CONFIG_MODULE_UNLOAD
492 /* What modules depend on me? */
493 struct list_head source_list;
494 /* What modules do I depend on? */
495 struct list_head target_list;
497 /* Destruction function. */
503 #ifdef CONFIG_CONSTRUCTORS
504 /* Constructor functions. */
506 unsigned int num_ctors;
509 #ifdef CONFIG_FUNCTION_ERROR_INJECTION
510 struct error_injection_entry *ei_funcs;
511 unsigned int num_ei_funcs;
513 } ____cacheline_aligned __randomize_layout;
514 #ifndef MODULE_ARCH_INIT
515 #define MODULE_ARCH_INIT {}
518 #ifndef HAVE_ARCH_KALLSYMS_SYMBOL_VALUE
519 static inline unsigned long kallsyms_symbol_value(const Elf_Sym *sym)
521 return sym->st_value;
525 extern struct mutex module_mutex;
527 /* FIXME: It'd be nice to isolate modules during init, too, so they
528 aren't used before they (may) fail. But presently too much code
529 (IDE & SCSI) require entry into the module during init.*/
530 static inline bool module_is_live(struct module *mod)
532 return mod->state != MODULE_STATE_GOING;
535 struct module *__module_text_address(unsigned long addr);
536 struct module *__module_address(unsigned long addr);
537 bool is_module_address(unsigned long addr);
538 bool __is_module_percpu_address(unsigned long addr, unsigned long *can_addr);
539 bool is_module_percpu_address(unsigned long addr);
540 bool is_module_text_address(unsigned long addr);
542 static inline bool within_module_core(unsigned long addr,
543 const struct module *mod)
545 return (unsigned long)mod->core_layout.base <= addr &&
546 addr < (unsigned long)mod->core_layout.base + mod->core_layout.size;
549 static inline bool within_module_init(unsigned long addr,
550 const struct module *mod)
552 return (unsigned long)mod->init_layout.base <= addr &&
553 addr < (unsigned long)mod->init_layout.base + mod->init_layout.size;
556 static inline bool within_module(unsigned long addr, const struct module *mod)
558 return within_module_init(addr, mod) || within_module_core(addr, mod);
561 /* Search for module by name: must hold module_mutex. */
562 struct module *find_module(const char *name);
565 const struct kernel_symbol *start, *stop;
576 * Search for an exported symbol by name.
578 * Must be called with module_mutex held or preemption disabled.
580 const struct kernel_symbol *find_symbol(const char *name,
581 struct module **owner,
587 * Walk the exported symbol table
589 * Must be called with module_mutex held or preemption disabled.
591 bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
592 struct module *owner,
593 void *data), void *data);
595 /* Returns 0 and fills in value, defined and namebuf, or -ERANGE if
596 symnum out of range. */
597 int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
598 char *name, char *module_name, int *exported);
600 /* Look for this name: can be of form module:name. */
601 unsigned long module_kallsyms_lookup_name(const char *name);
603 int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
604 struct module *, unsigned long),
607 extern void __noreturn __module_put_and_exit(struct module *mod,
609 #define module_put_and_exit(code) __module_put_and_exit(THIS_MODULE, code)
611 #ifdef CONFIG_MODULE_UNLOAD
612 int module_refcount(struct module *mod);
613 void __symbol_put(const char *symbol);
614 #define symbol_put(x) __symbol_put(__stringify(x))
615 void symbol_put_addr(void *addr);
617 /* Sometimes we know we already have a refcount, and it's easier not
618 to handle the error case (which only happens with rmmod --wait). */
619 extern void __module_get(struct module *module);
621 /* This is the Right Way to get a module: if it fails, it's being removed,
622 * so pretend it's not there. */
623 extern bool try_module_get(struct module *module);
625 extern void module_put(struct module *module);
627 #else /*!CONFIG_MODULE_UNLOAD*/
628 static inline bool try_module_get(struct module *module)
630 return !module || module_is_live(module);
632 static inline void module_put(struct module *module)
635 static inline void __module_get(struct module *module)
638 #define symbol_put(x) do { } while (0)
639 #define symbol_put_addr(p) do { } while (0)
641 #endif /* CONFIG_MODULE_UNLOAD */
642 int ref_module(struct module *a, struct module *b);
644 /* This is a #define so the string doesn't get put in every .o file */
645 #define module_name(mod) \
647 struct module *__mod = (mod); \
648 __mod ? __mod->name : "kernel"; \
651 /* Dereference module function descriptor */
652 void *dereference_module_function_descriptor(struct module *mod, void *ptr);
654 /* For kallsyms to ask for address resolution. namebuf should be at
655 * least KSYM_NAME_LEN long: a pointer to namebuf is returned if
656 * found, otherwise NULL. */
657 const char *module_address_lookup(unsigned long addr,
658 unsigned long *symbolsize,
659 unsigned long *offset,
662 int lookup_module_symbol_name(unsigned long addr, char *symname);
663 int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name);
665 int register_module_notifier(struct notifier_block *nb);
666 int unregister_module_notifier(struct notifier_block *nb);
668 extern void print_modules(void);
670 static inline bool module_requested_async_probing(struct module *module)
672 return module && module->async_probe_requested;
675 #ifdef CONFIG_LIVEPATCH
676 static inline bool is_livepatch_module(struct module *mod)
680 #else /* !CONFIG_LIVEPATCH */
681 static inline bool is_livepatch_module(struct module *mod)
685 #endif /* CONFIG_LIVEPATCH */
687 bool is_module_sig_enforced(void);
688 void set_module_sig_enforced(void);
690 #else /* !CONFIG_MODULES... */
692 static inline struct module *__module_address(unsigned long addr)
697 static inline struct module *__module_text_address(unsigned long addr)
702 static inline bool is_module_address(unsigned long addr)
707 static inline bool is_module_percpu_address(unsigned long addr)
712 static inline bool __is_module_percpu_address(unsigned long addr, unsigned long *can_addr)
717 static inline bool is_module_text_address(unsigned long addr)
722 static inline bool within_module_core(unsigned long addr,
723 const struct module *mod)
728 static inline bool within_module_init(unsigned long addr,
729 const struct module *mod)
734 static inline bool within_module(unsigned long addr, const struct module *mod)
739 /* Get/put a kernel symbol (calls should be symmetric) */
740 #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak)); &(x); })
741 #define symbol_put(x) do { } while (0)
742 #define symbol_put_addr(x) do { } while (0)
744 static inline void __module_get(struct module *module)
748 static inline bool try_module_get(struct module *module)
753 static inline void module_put(struct module *module)
757 #define module_name(mod) "kernel"
759 /* For kallsyms to ask for address resolution. NULL means not found. */
760 static inline const char *module_address_lookup(unsigned long addr,
761 unsigned long *symbolsize,
762 unsigned long *offset,
769 static inline int lookup_module_symbol_name(unsigned long addr, char *symname)
774 static inline int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name)
779 static inline int module_get_kallsym(unsigned int symnum, unsigned long *value,
780 char *type, char *name,
781 char *module_name, int *exported)
786 static inline unsigned long module_kallsyms_lookup_name(const char *name)
791 static inline int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
799 static inline int register_module_notifier(struct notifier_block *nb)
801 /* no events will happen anyway, so this can always succeed */
805 static inline int unregister_module_notifier(struct notifier_block *nb)
810 #define module_put_and_exit(code) do_exit(code)
812 static inline void print_modules(void)
816 static inline bool module_requested_async_probing(struct module *module)
821 static inline bool is_module_sig_enforced(void)
826 static inline void set_module_sig_enforced(void)
830 /* Dereference module function descriptor */
832 void *dereference_module_function_descriptor(struct module *mod, void *ptr)
837 #endif /* CONFIG_MODULES */
840 extern struct kset *module_kset;
841 extern struct kobj_type module_ktype;
842 extern int module_sysfs_initialized;
843 #endif /* CONFIG_SYSFS */
845 #define symbol_request(x) try_then_request_module(symbol_get(x), "symbol:" #x)
847 /* BELOW HERE ALL THESE ARE OBSOLETE AND WILL VANISH */
849 #define __MODULE_STRING(x) __stringify(x)
851 #ifdef CONFIG_STRICT_MODULE_RWX
852 extern void set_all_modules_text_rw(void);
853 extern void set_all_modules_text_ro(void);
854 extern void module_enable_ro(const struct module *mod, bool after_init);
855 extern void module_disable_ro(const struct module *mod);
857 static inline void set_all_modules_text_rw(void) { }
858 static inline void set_all_modules_text_ro(void) { }
859 static inline void module_enable_ro(const struct module *mod, bool after_init) { }
860 static inline void module_disable_ro(const struct module *mod) { }
863 #ifdef CONFIG_GENERIC_BUG
864 void module_bug_finalize(const Elf_Ehdr *, const Elf_Shdr *,
866 void module_bug_cleanup(struct module *);
868 #else /* !CONFIG_GENERIC_BUG */
870 static inline void module_bug_finalize(const Elf_Ehdr *hdr,
871 const Elf_Shdr *sechdrs,
875 static inline void module_bug_cleanup(struct module *mod) {}
876 #endif /* CONFIG_GENERIC_BUG */
878 #ifdef CONFIG_RETPOLINE
879 extern bool retpoline_module_ok(bool has_retpoline);
881 static inline bool retpoline_module_ok(bool has_retpoline)
887 #ifdef CONFIG_MODULE_SIG
888 static inline bool module_sig_ok(struct module *module)
890 return module->sig_ok;
892 #else /* !CONFIG_MODULE_SIG */
893 static inline bool module_sig_ok(struct module *module)
897 #endif /* CONFIG_MODULE_SIG */
899 #endif /* _LINUX_MODULE_H */