1 #ifndef _LINUX_MODULE_H
2 #define _LINUX_MODULE_H
4 * Dynamic loading of modules into the kernel.
6 * Rewritten by Richard Henderson <rth@tamu.edu> Dec 1996
7 * Rewritten again by Rusty Russell, 2002
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/init.h>
15 #include <linux/elf.h>
16 #include <linux/stringify.h>
17 #include <linux/kobject.h>
18 #include <linux/moduleparam.h>
19 #include <linux/jump_label.h>
20 #include <linux/export.h>
21 #include <linux/rbtree_latch.h>
22 #include <linux/error-injection.h>
23 #include <linux/tracepoint-defs.h>
25 #include <linux/percpu.h>
26 #include <asm/module.h>
28 /* In stripped ARM and x86-64 modules, ~ is surprisingly rare. */
29 #define MODULE_SIG_STRING "~Module signature appended~\n"
31 /* Not Yet Implemented */
32 #define MODULE_SUPPORTED_DEVICE(name)
34 #define MODULE_NAME_LEN MAX_PARAM_PREFIX_LEN
36 struct modversion_info
{
38 char name
[MODULE_NAME_LEN
];
42 struct exception_table_entry
;
44 struct module_kobject
{
47 struct kobject
*drivers_dir
;
48 struct module_param_attrs
*mp
;
49 struct completion
*kobj_completion
;
52 struct module_attribute
{
53 struct attribute attr
;
54 ssize_t (*show
)(struct module_attribute
*, struct module_kobject
*,
56 ssize_t (*store
)(struct module_attribute
*, struct module_kobject
*,
57 const char *, size_t count
);
58 void (*setup
)(struct module
*, const char *);
59 int (*test
)(struct module
*);
60 void (*free
)(struct module
*);
63 struct module_version_attribute
{
64 struct module_attribute mattr
;
65 const char *module_name
;
67 } __attribute__ ((__aligned__(sizeof(void *))));
69 extern ssize_t
__modver_version_show(struct module_attribute
*,
70 struct module_kobject
*, char *);
72 extern struct module_attribute module_uevent
;
74 /* These are either module local, or the kernel's dummy ones. */
75 extern int init_module(void);
76 extern void cleanup_module(void);
80 * module_init() - driver initialization entry point
81 * @x: function to be run at kernel boot time or module insertion
83 * module_init() will either be called during do_initcalls() (if
84 * builtin) or at module insertion time (if a module). There can only
87 #define module_init(x) __initcall(x);
90 * module_exit() - driver exit entry point
91 * @x: function to be run when driver is removed
93 * module_exit() will wrap the driver clean-up code
94 * with cleanup_module() when used with rmmod when
95 * the driver is a module. If the driver is statically
96 * compiled into the kernel, module_exit() has no effect.
97 * There can only be one per module.
99 #define module_exit(x) __exitcall(x);
104 * In most cases loadable modules do not need custom
105 * initcall levels. There are still some valid cases where
106 * a driver may be needed early if built in, and does not
107 * matter when built as a loadable module. Like bus
108 * snooping debug drivers.
110 #define early_initcall(fn) module_init(fn)
111 #define core_initcall(fn) module_init(fn)
112 #define core_initcall_sync(fn) module_init(fn)
113 #define postcore_initcall(fn) module_init(fn)
114 #define postcore_initcall_sync(fn) module_init(fn)
115 #define arch_initcall(fn) module_init(fn)
116 #define subsys_initcall(fn) module_init(fn)
117 #define subsys_initcall_sync(fn) module_init(fn)
118 #define fs_initcall(fn) module_init(fn)
119 #define fs_initcall_sync(fn) module_init(fn)
120 #define rootfs_initcall(fn) module_init(fn)
121 #define device_initcall(fn) module_init(fn)
122 #define device_initcall_sync(fn) module_init(fn)
123 #define late_initcall(fn) module_init(fn)
124 #define late_initcall_sync(fn) module_init(fn)
126 #define console_initcall(fn) module_init(fn)
128 /* Each module must use one module_init(). */
129 #define module_init(initfn) \
130 static inline initcall_t __maybe_unused __inittest(void) \
132 int init_module(void) __copy(initfn) __attribute__((alias(#initfn)));
134 /* This is only required if you want to be unloadable. */
135 #define module_exit(exitfn) \
136 static inline exitcall_t __maybe_unused __exittest(void) \
138 void cleanup_module(void) __copy(exitfn) __attribute__((alias(#exitfn)));
142 /* This means "can be init if no module support, otherwise module load
144 #ifdef CONFIG_MODULES
145 #define __init_or_module
146 #define __initdata_or_module
147 #define __initconst_or_module
148 #define __INIT_OR_MODULE .text
149 #define __INITDATA_OR_MODULE .data
150 #define __INITRODATA_OR_MODULE .section ".rodata","a",%progbits
152 #define __init_or_module __init
153 #define __initdata_or_module __initdata
154 #define __initconst_or_module __initconst
155 #define __INIT_OR_MODULE __INIT
156 #define __INITDATA_OR_MODULE __INITDATA
157 #define __INITRODATA_OR_MODULE __INITRODATA
158 #endif /*CONFIG_MODULES*/
160 /* Generic info of form tag = "info" */
161 #define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info)
163 /* For userspace: you can also call me... */
164 #define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias)
166 /* Soft module dependencies. See man modprobe.d for details.
167 * Example: MODULE_SOFTDEP("pre: module-foo module-bar post: module-baz")
169 #define MODULE_SOFTDEP(_softdep) MODULE_INFO(softdep, _softdep)
172 * The following license idents are currently accepted as indicating free
175 * "GPL" [GNU Public License v2]
176 * "GPL v2" [GNU Public License v2]
177 * "GPL and additional rights" [GNU Public License v2 rights and more]
178 * "Dual BSD/GPL" [GNU Public License v2
179 * or BSD license choice]
180 * "Dual MIT/GPL" [GNU Public License v2
181 * or MIT license choice]
182 * "Dual MPL/GPL" [GNU Public License v2
183 * or Mozilla license choice]
185 * The following other idents are available
187 * "Proprietary" [Non free products]
189 * Both "GPL v2" and "GPL" (the latter also in dual licensed strings) are
190 * merely stating that the module is licensed under the GPL v2, but are not
191 * telling whether "GPL v2 only" or "GPL v2 or later". The reason why there
192 * are two variants is a historic and failed attempt to convey more
193 * information in the MODULE_LICENSE string. For module loading the
194 * "only/or later" distinction is completely irrelevant and does neither
195 * replace the proper license identifiers in the corresponding source file
196 * nor amends them in any way. The sole purpose is to make the
197 * 'Proprietary' flagging work and to refuse to bind symbols which are
198 * exported with EXPORT_SYMBOL_GPL when a non free module is loaded.
200 * In the same way "BSD" is not a clear license information. It merely
201 * states, that the module is licensed under one of the compatible BSD
202 * license variants. The detailed and correct license information is again
203 * to be found in the corresponding source files.
205 * There are dual licensed components, but when running with Linux it is the
206 * GPL that is relevant so this is a non issue. Similarly LGPL linked with GPL
207 * is a GPL combined work.
209 * This exists for several reasons
210 * 1. So modinfo can show license info for users wanting to vet their setup
212 * 2. So the community can ignore bug reports including proprietary modules
213 * 3. So vendors can do likewise based on their own policies
215 #define MODULE_LICENSE(_license) MODULE_INFO(license, _license)
218 * Author(s), use "Name <email>" or just "Name", for multiple
219 * authors use multiple MODULE_AUTHOR() statements/lines.
221 #define MODULE_AUTHOR(_author) MODULE_INFO(author, _author)
223 /* What your module does. */
224 #define MODULE_DESCRIPTION(_description) MODULE_INFO(description, _description)
227 /* Creates an alias so file2alias.c can find device table. */
228 #define MODULE_DEVICE_TABLE(type, name) \
229 extern typeof(name) __mod_##type##__##name##_device_table \
230 __attribute__ ((unused, alias(__stringify(name))))
232 #define MODULE_DEVICE_TABLE(type, name)
235 /* Version of form [<epoch>:]<version>[-<extra-version>].
236 * Or for CVS/RCS ID version, everything but the number is stripped.
237 * <epoch>: A (small) unsigned integer which allows you to start versions
238 * anew. If not mentioned, it's zero. eg. "2:1.0" is after
241 * <version>: The <version> may contain only alphanumerics and the
242 * character `.'. Ordered by numeric sort for numeric parts,
243 * ascii sort for ascii parts (as per RPM or DEB algorithm).
245 * <extraversion>: Like <version>, but inserted for local
246 * customizations, eg "rh3" or "rusty1".
248 * Using this automatically adds a checksum of the .c files and the
249 * local headers in "srcversion".
252 #if defined(MODULE) || !defined(CONFIG_SYSFS)
253 #define MODULE_VERSION(_version) MODULE_INFO(version, _version)
255 #define MODULE_VERSION(_version) \
256 MODULE_INFO(version, _version); \
257 static struct module_version_attribute ___modver_attr = { \
263 .show = __modver_version_show, \
265 .module_name = KBUILD_MODNAME, \
266 .version = _version, \
268 static const struct module_version_attribute \
269 __used __attribute__ ((__section__ ("__modver"))) \
270 * __moduleparam_const __modver_attr = &___modver_attr
273 /* Optional firmware file (or files) needed by the module
274 * format is simply firmware file name. Multiple firmware
275 * files require multiple MODULE_FIRMWARE() specifiers */
276 #define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware)
278 struct notifier_block
;
280 #ifdef CONFIG_MODULES
282 extern int modules_disabled
; /* for sysctl */
283 /* Get/put a kernel symbol (calls must be symmetric) */
284 void *__symbol_get(const char *symbol
);
285 void *__symbol_get_gpl(const char *symbol
);
286 #define symbol_get(x) ((typeof(&x))(__symbol_get(__stringify(x))))
288 /* modules using other modules: kdb wants to see this. */
290 struct list_head source_list
;
291 struct list_head target_list
;
292 struct module
*source
, *target
;
296 MODULE_STATE_LIVE
, /* Normal state. */
297 MODULE_STATE_COMING
, /* Full formed, running module_init. */
298 MODULE_STATE_GOING
, /* Going away. */
299 MODULE_STATE_UNFORMED
, /* Still setting it up. */
302 struct mod_tree_node
{
304 struct latch_tree_node node
;
307 struct module_layout
{
308 /* The actual code + data. */
312 /* The size of the executable code. */
313 unsigned int text_size
;
314 /* Size of RO section of the module (text+rodata) */
315 unsigned int ro_size
;
316 /* Size of RO after init section */
317 unsigned int ro_after_init_size
;
319 #ifdef CONFIG_MODULES_TREE_LOOKUP
320 struct mod_tree_node mtn
;
324 #ifdef CONFIG_MODULES_TREE_LOOKUP
325 /* Only touch one cacheline for common rbtree-for-core-layout case. */
326 #define __module_layout_align ____cacheline_aligned
328 #define __module_layout_align
331 struct mod_kallsyms
{
333 unsigned int num_symtab
;
337 #ifdef CONFIG_LIVEPATCH
347 enum module_state state
;
349 /* Member of list of modules */
350 struct list_head list
;
352 /* Unique handle for this module */
353 char name
[MODULE_NAME_LEN
];
356 struct module_kobject mkobj
;
357 struct module_attribute
*modinfo_attrs
;
359 const char *srcversion
;
360 struct kobject
*holders_dir
;
362 /* Exported symbols */
363 const struct kernel_symbol
*syms
;
365 unsigned int num_syms
;
367 /* Kernel parameters. */
369 struct mutex param_lock
;
371 struct kernel_param
*kp
;
374 /* GPL-only exported symbols. */
375 unsigned int num_gpl_syms
;
376 const struct kernel_symbol
*gpl_syms
;
379 #ifdef CONFIG_UNUSED_SYMBOLS
380 /* unused exported symbols. */
381 const struct kernel_symbol
*unused_syms
;
382 const s32
*unused_crcs
;
383 unsigned int num_unused_syms
;
385 /* GPL-only, unused exported symbols. */
386 unsigned int num_unused_gpl_syms
;
387 const struct kernel_symbol
*unused_gpl_syms
;
388 const s32
*unused_gpl_crcs
;
391 #ifdef CONFIG_MODULE_SIG
392 /* Signature was verified. */
396 bool async_probe_requested
;
398 /* symbols that will be GPL-only in the near future. */
399 const struct kernel_symbol
*gpl_future_syms
;
400 const s32
*gpl_future_crcs
;
401 unsigned int num_gpl_future_syms
;
403 /* Exception table */
404 unsigned int num_exentries
;
405 struct exception_table_entry
*extable
;
407 /* Startup function. */
410 /* Core layout: rbtree is accessed frequently, so keep together. */
411 struct module_layout core_layout __module_layout_align
;
412 struct module_layout init_layout
;
414 /* Arch-specific module values */
415 struct mod_arch_specific arch
;
417 unsigned long taints
; /* same bits as kernel:taint_flags */
419 #ifdef CONFIG_GENERIC_BUG
420 /* Support for BUG */
422 struct list_head bug_list
;
423 struct bug_entry
*bug_table
;
426 #ifdef CONFIG_KALLSYMS
427 /* Protected by RCU and/or module_mutex: use rcu_dereference() */
428 struct mod_kallsyms
*kallsyms
;
429 struct mod_kallsyms core_kallsyms
;
431 /* Section attributes */
432 struct module_sect_attrs
*sect_attrs
;
434 /* Notes attributes */
435 struct module_notes_attrs
*notes_attrs
;
438 /* The command line arguments (may be mangled). People like
439 keeping pointers to this stuff */
444 void __percpu
*percpu
;
445 unsigned int percpu_size
;
448 #ifdef CONFIG_TRACEPOINTS
449 unsigned int num_tracepoints
;
450 tracepoint_ptr_t
*tracepoints_ptrs
;
452 #ifdef CONFIG_BPF_EVENTS
453 unsigned int num_bpf_raw_events
;
454 struct bpf_raw_event_map
*bpf_raw_events
;
456 #ifdef CONFIG_JUMP_LABEL
457 struct jump_entry
*jump_entries
;
458 unsigned int num_jump_entries
;
460 #ifdef CONFIG_TRACING
461 unsigned int num_trace_bprintk_fmt
;
462 const char **trace_bprintk_fmt_start
;
464 #ifdef CONFIG_EVENT_TRACING
465 struct trace_event_call
**trace_events
;
466 unsigned int num_trace_events
;
467 struct trace_eval_map
**trace_evals
;
468 unsigned int num_trace_evals
;
470 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
471 unsigned int num_ftrace_callsites
;
472 unsigned long *ftrace_callsites
;
475 #ifdef CONFIG_LIVEPATCH
476 bool klp
; /* Is this a livepatch module? */
479 /* Elf information */
480 struct klp_modinfo
*klp_info
;
483 #ifdef CONFIG_MODULE_UNLOAD
484 /* What modules depend on me? */
485 struct list_head source_list
;
486 /* What modules do I depend on? */
487 struct list_head target_list
;
489 /* Destruction function. */
495 #ifdef CONFIG_CONSTRUCTORS
496 /* Constructor functions. */
498 unsigned int num_ctors
;
501 #ifdef CONFIG_FUNCTION_ERROR_INJECTION
502 struct error_injection_entry
*ei_funcs
;
503 unsigned int num_ei_funcs
;
505 } ____cacheline_aligned __randomize_layout
;
506 #ifndef MODULE_ARCH_INIT
507 #define MODULE_ARCH_INIT {}
510 #ifndef HAVE_ARCH_KALLSYMS_SYMBOL_VALUE
511 static inline unsigned long kallsyms_symbol_value(const Elf_Sym
*sym
)
513 return sym
->st_value
;
517 extern struct mutex module_mutex
;
519 /* FIXME: It'd be nice to isolate modules during init, too, so they
520 aren't used before they (may) fail. But presently too much code
521 (IDE & SCSI) require entry into the module during init.*/
522 static inline bool module_is_live(struct module
*mod
)
524 return mod
->state
!= MODULE_STATE_GOING
;
527 struct module
*__module_text_address(unsigned long addr
);
528 struct module
*__module_address(unsigned long addr
);
529 bool is_module_address(unsigned long addr
);
530 bool __is_module_percpu_address(unsigned long addr
, unsigned long *can_addr
);
531 bool is_module_percpu_address(unsigned long addr
);
532 bool is_module_text_address(unsigned long addr
);
534 static inline bool within_module_core(unsigned long addr
,
535 const struct module
*mod
)
537 return (unsigned long)mod
->core_layout
.base
<= addr
&&
538 addr
< (unsigned long)mod
->core_layout
.base
+ mod
->core_layout
.size
;
541 static inline bool within_module_init(unsigned long addr
,
542 const struct module
*mod
)
544 return (unsigned long)mod
->init_layout
.base
<= addr
&&
545 addr
< (unsigned long)mod
->init_layout
.base
+ mod
->init_layout
.size
;
548 static inline bool within_module(unsigned long addr
, const struct module
*mod
)
550 return within_module_init(addr
, mod
) || within_module_core(addr
, mod
);
553 /* Search for module by name: must hold module_mutex. */
554 struct module
*find_module(const char *name
);
557 const struct kernel_symbol
*start
, *stop
;
568 * Search for an exported symbol by name.
570 * Must be called with module_mutex held or preemption disabled.
572 const struct kernel_symbol
*find_symbol(const char *name
,
573 struct module
**owner
,
579 * Walk the exported symbol table
581 * Must be called with module_mutex held or preemption disabled.
583 bool each_symbol_section(bool (*fn
)(const struct symsearch
*arr
,
584 struct module
*owner
,
585 void *data
), void *data
);
587 /* Returns 0 and fills in value, defined and namebuf, or -ERANGE if
588 symnum out of range. */
589 int module_get_kallsym(unsigned int symnum
, unsigned long *value
, char *type
,
590 char *name
, char *module_name
, int *exported
);
592 /* Look for this name: can be of form module:name. */
593 unsigned long module_kallsyms_lookup_name(const char *name
);
595 int module_kallsyms_on_each_symbol(int (*fn
)(void *, const char *,
596 struct module
*, unsigned long),
599 extern void __noreturn
__module_put_and_exit(struct module
*mod
,
601 #define module_put_and_exit(code) __module_put_and_exit(THIS_MODULE, code)
603 #ifdef CONFIG_MODULE_UNLOAD
604 int module_refcount(struct module
*mod
);
605 void __symbol_put(const char *symbol
);
606 #define symbol_put(x) __symbol_put(__stringify(x))
607 void symbol_put_addr(void *addr
);
609 /* Sometimes we know we already have a refcount, and it's easier not
610 to handle the error case (which only happens with rmmod --wait). */
611 extern void __module_get(struct module
*module
);
613 /* This is the Right Way to get a module: if it fails, it's being removed,
614 * so pretend it's not there. */
615 extern bool try_module_get(struct module
*module
);
617 extern void module_put(struct module
*module
);
619 #else /*!CONFIG_MODULE_UNLOAD*/
620 static inline bool try_module_get(struct module
*module
)
622 return !module
|| module_is_live(module
);
624 static inline void module_put(struct module
*module
)
627 static inline void __module_get(struct module
*module
)
630 #define symbol_put(x) do { } while (0)
631 #define symbol_put_addr(p) do { } while (0)
633 #endif /* CONFIG_MODULE_UNLOAD */
634 int ref_module(struct module
*a
, struct module
*b
);
636 /* This is a #define so the string doesn't get put in every .o file */
637 #define module_name(mod) \
639 struct module *__mod = (mod); \
640 __mod ? __mod->name : "kernel"; \
643 /* Dereference module function descriptor */
644 void *dereference_module_function_descriptor(struct module
*mod
, void *ptr
);
646 /* For kallsyms to ask for address resolution. namebuf should be at
647 * least KSYM_NAME_LEN long: a pointer to namebuf is returned if
648 * found, otherwise NULL. */
649 const char *module_address_lookup(unsigned long addr
,
650 unsigned long *symbolsize
,
651 unsigned long *offset
,
654 int lookup_module_symbol_name(unsigned long addr
, char *symname
);
655 int lookup_module_symbol_attrs(unsigned long addr
, unsigned long *size
, unsigned long *offset
, char *modname
, char *name
);
657 int register_module_notifier(struct notifier_block
*nb
);
658 int unregister_module_notifier(struct notifier_block
*nb
);
660 extern void print_modules(void);
662 static inline bool module_requested_async_probing(struct module
*module
)
664 return module
&& module
->async_probe_requested
;
667 #ifdef CONFIG_LIVEPATCH
668 static inline bool is_livepatch_module(struct module
*mod
)
672 #else /* !CONFIG_LIVEPATCH */
673 static inline bool is_livepatch_module(struct module
*mod
)
677 #endif /* CONFIG_LIVEPATCH */
679 bool is_module_sig_enforced(void);
680 void set_module_sig_enforced(void);
682 #else /* !CONFIG_MODULES... */
684 static inline struct module
*__module_address(unsigned long addr
)
689 static inline struct module
*__module_text_address(unsigned long addr
)
694 static inline bool is_module_address(unsigned long addr
)
699 static inline bool is_module_percpu_address(unsigned long addr
)
704 static inline bool __is_module_percpu_address(unsigned long addr
, unsigned long *can_addr
)
709 static inline bool is_module_text_address(unsigned long addr
)
714 static inline bool within_module_core(unsigned long addr
,
715 const struct module
*mod
)
720 /* Get/put a kernel symbol (calls should be symmetric) */
721 #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak)); &(x); })
722 #define symbol_put(x) do { } while (0)
723 #define symbol_put_addr(x) do { } while (0)
725 static inline void __module_get(struct module
*module
)
729 static inline bool try_module_get(struct module
*module
)
734 static inline void module_put(struct module
*module
)
738 #define module_name(mod) "kernel"
740 /* For kallsyms to ask for address resolution. NULL means not found. */
741 static inline const char *module_address_lookup(unsigned long addr
,
742 unsigned long *symbolsize
,
743 unsigned long *offset
,
750 static inline int lookup_module_symbol_name(unsigned long addr
, char *symname
)
755 static inline int lookup_module_symbol_attrs(unsigned long addr
, unsigned long *size
, unsigned long *offset
, char *modname
, char *name
)
760 static inline int module_get_kallsym(unsigned int symnum
, unsigned long *value
,
761 char *type
, char *name
,
762 char *module_name
, int *exported
)
767 static inline unsigned long module_kallsyms_lookup_name(const char *name
)
772 static inline int module_kallsyms_on_each_symbol(int (*fn
)(void *, const char *,
780 static inline int register_module_notifier(struct notifier_block
*nb
)
782 /* no events will happen anyway, so this can always succeed */
786 static inline int unregister_module_notifier(struct notifier_block
*nb
)
791 #define module_put_and_exit(code) do_exit(code)
793 static inline void print_modules(void)
797 static inline bool module_requested_async_probing(struct module
*module
)
802 static inline bool is_module_sig_enforced(void)
807 static inline void set_module_sig_enforced(void)
811 /* Dereference module function descriptor */
813 void *dereference_module_function_descriptor(struct module
*mod
, void *ptr
)
818 #endif /* CONFIG_MODULES */
821 extern struct kset
*module_kset
;
822 extern struct kobj_type module_ktype
;
823 extern int module_sysfs_initialized
;
824 #endif /* CONFIG_SYSFS */
826 #define symbol_request(x) try_then_request_module(symbol_get(x), "symbol:" #x)
828 /* BELOW HERE ALL THESE ARE OBSOLETE AND WILL VANISH */
830 #define __MODULE_STRING(x) __stringify(x)
832 #ifdef CONFIG_STRICT_MODULE_RWX
833 extern void set_all_modules_text_rw(void);
834 extern void set_all_modules_text_ro(void);
835 extern void module_enable_ro(const struct module
*mod
, bool after_init
);
836 extern void module_disable_ro(const struct module
*mod
);
838 static inline void set_all_modules_text_rw(void) { }
839 static inline void set_all_modules_text_ro(void) { }
840 static inline void module_enable_ro(const struct module
*mod
, bool after_init
) { }
841 static inline void module_disable_ro(const struct module
*mod
) { }
844 #ifdef CONFIG_GENERIC_BUG
845 void module_bug_finalize(const Elf_Ehdr
*, const Elf_Shdr
*,
847 void module_bug_cleanup(struct module
*);
849 #else /* !CONFIG_GENERIC_BUG */
851 static inline void module_bug_finalize(const Elf_Ehdr
*hdr
,
852 const Elf_Shdr
*sechdrs
,
856 static inline void module_bug_cleanup(struct module
*mod
) {}
857 #endif /* CONFIG_GENERIC_BUG */
859 #ifdef CONFIG_RETPOLINE
860 extern bool retpoline_module_ok(bool has_retpoline
);
862 static inline bool retpoline_module_ok(bool has_retpoline
)
868 #ifdef CONFIG_MODULE_SIG
869 static inline bool module_sig_ok(struct module
*module
)
871 return module
->sig_ok
;
873 #else /* !CONFIG_MODULE_SIG */
874 static inline bool module_sig_ok(struct module
*module
)
878 #endif /* CONFIG_MODULE_SIG */
880 #endif /* _LINUX_MODULE_H */