Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
0b24becc AR |
2 | #ifndef _LINUX_KASAN_H |
3 | #define _LINUX_KASAN_H | |
4 | ||
7a3b8353 | 5 | #include <linux/bug.h> |
f9b5e46f | 6 | #include <linux/kasan-enabled.h> |
2db710cc | 7 | #include <linux/kernel.h> |
34303244 | 8 | #include <linux/static_key.h> |
0b24becc AR |
9 | #include <linux/types.h> |
10 | ||
11 | struct kmem_cache; | |
12 | struct page; | |
6e48a966 | 13 | struct slab; |
a5af5aa8 | 14 | struct vm_struct; |
5be9b730 | 15 | struct task_struct; |
0b24becc AR |
16 | |
17 | #ifdef CONFIG_KASAN | |
18 | ||
d5750edf | 19 | #include <linux/linkage.h> |
65fddcfc | 20 | #include <asm/kasan.h> |
0b24becc | 21 | |
d5750edf AK |
22 | #endif |
23 | ||
23689e91 AK |
24 | typedef unsigned int __bitwise kasan_vmalloc_flags_t; |
25 | ||
ec2a0f9c AK |
26 | #define KASAN_VMALLOC_NONE ((__force kasan_vmalloc_flags_t)0x00u) |
27 | #define KASAN_VMALLOC_INIT ((__force kasan_vmalloc_flags_t)0x01u) | |
28 | #define KASAN_VMALLOC_VM_ALLOC ((__force kasan_vmalloc_flags_t)0x02u) | |
29 | #define KASAN_VMALLOC_PROT_NORMAL ((__force kasan_vmalloc_flags_t)0x04u) | |
23689e91 | 30 | |
d5750edf AK |
31 | #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) |
32 | ||
33 | #include <linux/pgtable.h> | |
34 | ||
35 | /* Software KASAN implementations use shadow memory. */ | |
36 | ||
37 | #ifdef CONFIG_KASAN_SW_TAGS | |
a064cb00 AK |
38 | /* This matches KASAN_TAG_INVALID. */ |
39 | #define KASAN_SHADOW_INIT 0xFE | |
d5750edf AK |
40 | #else |
41 | #define KASAN_SHADOW_INIT 0 | |
42 | #endif | |
43 | ||
29970dc2 HL |
44 | #ifndef PTE_HWTABLE_PTRS |
45 | #define PTE_HWTABLE_PTRS 0 | |
46 | #endif | |
47 | ||
9577dd74 | 48 | extern unsigned char kasan_early_shadow_page[PAGE_SIZE]; |
cb32c9c5 DA |
49 | extern pte_t kasan_early_shadow_pte[MAX_PTRS_PER_PTE + PTE_HWTABLE_PTRS]; |
50 | extern pmd_t kasan_early_shadow_pmd[MAX_PTRS_PER_PMD]; | |
51 | extern pud_t kasan_early_shadow_pud[MAX_PTRS_PER_PUD]; | |
9577dd74 | 52 | extern p4d_t kasan_early_shadow_p4d[MAX_PTRS_PER_P4D]; |
69786cdb | 53 | |
9577dd74 | 54 | int kasan_populate_early_shadow(const void *shadow_start, |
69786cdb AR |
55 | const void *shadow_end); |
56 | ||
0b24becc AR |
57 | static inline void *kasan_mem_to_shadow(const void *addr) |
58 | { | |
59 | return (void *)((unsigned long)addr >> KASAN_SHADOW_SCALE_SHIFT) | |
60 | + KASAN_SHADOW_OFFSET; | |
61 | } | |
62 | ||
d5750edf AK |
63 | int kasan_add_zero_shadow(void *start, unsigned long size); |
64 | void kasan_remove_zero_shadow(void *start, unsigned long size); | |
65 | ||
d73b4936 AK |
66 | /* Enable reporting bugs after kasan_disable_current() */ |
67 | extern void kasan_enable_current(void); | |
68 | ||
69 | /* Disable reporting bugs for current task */ | |
70 | extern void kasan_disable_current(void); | |
71 | ||
d5750edf AK |
72 | #else /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ |
73 | ||
74 | static inline int kasan_add_zero_shadow(void *start, unsigned long size) | |
75 | { | |
76 | return 0; | |
77 | } | |
78 | static inline void kasan_remove_zero_shadow(void *start, | |
79 | unsigned long size) | |
80 | {} | |
81 | ||
d73b4936 AK |
82 | static inline void kasan_enable_current(void) {} |
83 | static inline void kasan_disable_current(void) {} | |
84 | ||
d5750edf AK |
85 | #endif /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ |
86 | ||
34303244 | 87 | #ifdef CONFIG_KASAN_HW_TAGS |
e86f8b09 | 88 | |
e86f8b09 AK |
89 | #else /* CONFIG_KASAN_HW_TAGS */ |
90 | ||
e86f8b09 AK |
91 | #endif /* CONFIG_KASAN_HW_TAGS */ |
92 | ||
e5af50a5 PC |
93 | static inline bool kasan_has_integrated_init(void) |
94 | { | |
95 | return kasan_hw_tags_enabled(); | |
96 | } | |
97 | ||
7a3b8353 | 98 | #ifdef CONFIG_KASAN |
34303244 AK |
99 | void __kasan_unpoison_range(const void *addr, size_t size); |
100 | static __always_inline void kasan_unpoison_range(const void *addr, size_t size) | |
101 | { | |
102 | if (kasan_enabled()) | |
103 | __kasan_unpoison_range(addr, size); | |
104 | } | |
7ed2f9e6 | 105 | |
7a3b8353 PC |
106 | void __kasan_poison_pages(struct page *page, unsigned int order, bool init); |
107 | static __always_inline void kasan_poison_pages(struct page *page, | |
1bb5eab3 | 108 | unsigned int order, bool init) |
34303244 AK |
109 | { |
110 | if (kasan_enabled()) | |
7a3b8353 | 111 | __kasan_poison_pages(page, order, init); |
34303244 | 112 | } |
0316bec2 | 113 | |
44383cef AK |
114 | bool __kasan_unpoison_pages(struct page *page, unsigned int order, bool init); |
115 | static __always_inline bool kasan_unpoison_pages(struct page *page, | |
7a3b8353 | 116 | unsigned int order, bool init) |
34303244 AK |
117 | { |
118 | if (kasan_enabled()) | |
44383cef AK |
119 | return __kasan_unpoison_pages(page, order, init); |
120 | return false; | |
34303244 | 121 | } |
0316bec2 | 122 | |
6e48a966 MWO |
123 | void __kasan_poison_slab(struct slab *slab); |
124 | static __always_inline void kasan_poison_slab(struct slab *slab) | |
34303244 AK |
125 | { |
126 | if (kasan_enabled()) | |
6e48a966 | 127 | __kasan_poison_slab(slab); |
34303244 AK |
128 | } |
129 | ||
130 | void __kasan_unpoison_object_data(struct kmem_cache *cache, void *object); | |
131 | static __always_inline void kasan_unpoison_object_data(struct kmem_cache *cache, | |
132 | void *object) | |
133 | { | |
134 | if (kasan_enabled()) | |
135 | __kasan_unpoison_object_data(cache, object); | |
136 | } | |
137 | ||
138 | void __kasan_poison_object_data(struct kmem_cache *cache, void *object); | |
139 | static __always_inline void kasan_poison_object_data(struct kmem_cache *cache, | |
140 | void *object) | |
141 | { | |
142 | if (kasan_enabled()) | |
143 | __kasan_poison_object_data(cache, object); | |
144 | } | |
145 | ||
146 | void * __must_check __kasan_init_slab_obj(struct kmem_cache *cache, | |
147 | const void *object); | |
148 | static __always_inline void * __must_check kasan_init_slab_obj( | |
149 | struct kmem_cache *cache, const void *object) | |
150 | { | |
151 | if (kasan_enabled()) | |
152 | return __kasan_init_slab_obj(cache, object); | |
153 | return (void *)object; | |
154 | } | |
155 | ||
d57a964e AK |
156 | bool __kasan_slab_free(struct kmem_cache *s, void *object, |
157 | unsigned long ip, bool init); | |
158 | static __always_inline bool kasan_slab_free(struct kmem_cache *s, | |
159 | void *object, bool init) | |
34303244 AK |
160 | { |
161 | if (kasan_enabled()) | |
d57a964e | 162 | return __kasan_slab_free(s, object, _RET_IP_, init); |
34303244 AK |
163 | return false; |
164 | } | |
165 | ||
200072ce AK |
166 | void __kasan_kfree_large(void *ptr, unsigned long ip); |
167 | static __always_inline void kasan_kfree_large(void *ptr) | |
168 | { | |
169 | if (kasan_enabled()) | |
170 | __kasan_kfree_large(ptr, _RET_IP_); | |
171 | } | |
172 | ||
eeb3160c | 173 | void __kasan_slab_free_mempool(void *ptr, unsigned long ip); |
027b37b5 | 174 | static __always_inline void kasan_slab_free_mempool(void *ptr) |
eeb3160c AK |
175 | { |
176 | if (kasan_enabled()) | |
027b37b5 | 177 | __kasan_slab_free_mempool(ptr, _RET_IP_); |
eeb3160c AK |
178 | } |
179 | ||
34303244 | 180 | void * __must_check __kasan_slab_alloc(struct kmem_cache *s, |
da844b78 | 181 | void *object, gfp_t flags, bool init); |
34303244 | 182 | static __always_inline void * __must_check kasan_slab_alloc( |
da844b78 | 183 | struct kmem_cache *s, void *object, gfp_t flags, bool init) |
34303244 AK |
184 | { |
185 | if (kasan_enabled()) | |
da844b78 | 186 | return __kasan_slab_alloc(s, object, flags, init); |
34303244 AK |
187 | return object; |
188 | } | |
189 | ||
190 | void * __must_check __kasan_kmalloc(struct kmem_cache *s, const void *object, | |
191 | size_t size, gfp_t flags); | |
192 | static __always_inline void * __must_check kasan_kmalloc(struct kmem_cache *s, | |
193 | const void *object, size_t size, gfp_t flags) | |
194 | { | |
195 | if (kasan_enabled()) | |
196 | return __kasan_kmalloc(s, object, size, flags); | |
197 | return (void *)object; | |
198 | } | |
199 | ||
200 | void * __must_check __kasan_kmalloc_large(const void *ptr, | |
201 | size_t size, gfp_t flags); | |
202 | static __always_inline void * __must_check kasan_kmalloc_large(const void *ptr, | |
203 | size_t size, gfp_t flags) | |
204 | { | |
205 | if (kasan_enabled()) | |
206 | return __kasan_kmalloc_large(ptr, size, flags); | |
207 | return (void *)ptr; | |
208 | } | |
209 | ||
210 | void * __must_check __kasan_krealloc(const void *object, | |
211 | size_t new_size, gfp_t flags); | |
212 | static __always_inline void * __must_check kasan_krealloc(const void *object, | |
213 | size_t new_size, gfp_t flags) | |
214 | { | |
215 | if (kasan_enabled()) | |
216 | return __kasan_krealloc(object, new_size, flags); | |
217 | return (void *)object; | |
218 | } | |
219 | ||
611806b4 AK |
220 | /* |
221 | * Unlike kasan_check_read/write(), kasan_check_byte() is performed even for | |
222 | * the hardware tag-based mode that doesn't rely on compiler instrumentation. | |
223 | */ | |
224 | bool __kasan_check_byte(const void *addr, unsigned long ip); | |
225 | static __always_inline bool kasan_check_byte(const void *addr) | |
226 | { | |
227 | if (kasan_enabled()) | |
228 | return __kasan_check_byte(addr, _RET_IP_); | |
229 | return true; | |
230 | } | |
231 | ||
0b24becc AR |
232 | #else /* CONFIG_KASAN */ |
233 | ||
cebd0eb2 | 234 | static inline void kasan_unpoison_range(const void *address, size_t size) {} |
7a3b8353 PC |
235 | static inline void kasan_poison_pages(struct page *page, unsigned int order, |
236 | bool init) {} | |
44383cef AK |
237 | static inline bool kasan_unpoison_pages(struct page *page, unsigned int order, |
238 | bool init) | |
239 | { | |
240 | return false; | |
241 | } | |
6e48a966 | 242 | static inline void kasan_poison_slab(struct slab *slab) {} |
0316bec2 AR |
243 | static inline void kasan_unpoison_object_data(struct kmem_cache *cache, |
244 | void *object) {} | |
245 | static inline void kasan_poison_object_data(struct kmem_cache *cache, | |
246 | void *object) {} | |
0116523c AK |
247 | static inline void *kasan_init_slab_obj(struct kmem_cache *cache, |
248 | const void *object) | |
249 | { | |
250 | return (void *)object; | |
251 | } | |
d57a964e | 252 | static inline bool kasan_slab_free(struct kmem_cache *s, void *object, bool init) |
34303244 AK |
253 | { |
254 | return false; | |
255 | } | |
200072ce | 256 | static inline void kasan_kfree_large(void *ptr) {} |
027b37b5 | 257 | static inline void kasan_slab_free_mempool(void *ptr) {} |
34303244 | 258 | static inline void *kasan_slab_alloc(struct kmem_cache *s, void *object, |
da844b78 | 259 | gfp_t flags, bool init) |
0116523c | 260 | { |
34303244 | 261 | return object; |
0116523c | 262 | } |
0116523c AK |
263 | static inline void *kasan_kmalloc(struct kmem_cache *s, const void *object, |
264 | size_t size, gfp_t flags) | |
265 | { | |
266 | return (void *)object; | |
267 | } | |
34303244 AK |
268 | static inline void *kasan_kmalloc_large(const void *ptr, size_t size, gfp_t flags) |
269 | { | |
270 | return (void *)ptr; | |
271 | } | |
0116523c AK |
272 | static inline void *kasan_krealloc(const void *object, size_t new_size, |
273 | gfp_t flags) | |
274 | { | |
275 | return (void *)object; | |
276 | } | |
611806b4 AK |
277 | static inline bool kasan_check_byte(const void *address) |
278 | { | |
279 | return true; | |
280 | } | |
9b75a867 | 281 | |
0b24becc AR |
282 | #endif /* CONFIG_KASAN */ |
283 | ||
02c58773 | 284 | #if defined(CONFIG_KASAN) && defined(CONFIG_KASAN_STACK) |
d56a9ef8 AK |
285 | void kasan_unpoison_task_stack(struct task_struct *task); |
286 | #else | |
287 | static inline void kasan_unpoison_task_stack(struct task_struct *task) {} | |
288 | #endif | |
289 | ||
2bd926b4 AK |
290 | #ifdef CONFIG_KASAN_GENERIC |
291 | ||
bbc61844 FT |
292 | struct kasan_cache { |
293 | int alloc_meta_offset; | |
294 | int free_meta_offset; | |
295 | }; | |
296 | ||
5d1ba310 | 297 | size_t kasan_metadata_size(struct kmem_cache *cache, bool in_object); |
3b7f8813 | 298 | slab_flags_t kasan_never_merge(void); |
682ed089 AK |
299 | void kasan_cache_create(struct kmem_cache *cache, unsigned int *size, |
300 | slab_flags_t *flags); | |
f372bde9 | 301 | |
2bd926b4 AK |
302 | void kasan_cache_shrink(struct kmem_cache *cache); |
303 | void kasan_cache_shutdown(struct kmem_cache *cache); | |
26e760c9 | 304 | void kasan_record_aux_stack(void *ptr); |
7cb3007c | 305 | void kasan_record_aux_stack_noalloc(void *ptr); |
2bd926b4 AK |
306 | |
307 | #else /* CONFIG_KASAN_GENERIC */ | |
308 | ||
f372bde9 | 309 | /* Tag-based KASAN modes do not use per-object metadata. */ |
5d1ba310 FT |
310 | static inline size_t kasan_metadata_size(struct kmem_cache *cache, |
311 | bool in_object) | |
f372bde9 AK |
312 | { |
313 | return 0; | |
314 | } | |
3b7f8813 AK |
315 | /* And thus nothing prevents cache merging. */ |
316 | static inline slab_flags_t kasan_never_merge(void) | |
317 | { | |
318 | return 0; | |
319 | } | |
682ed089 AK |
320 | /* And no cache-related metadata initialization is required. */ |
321 | static inline void kasan_cache_create(struct kmem_cache *cache, | |
322 | unsigned int *size, | |
323 | slab_flags_t *flags) {} | |
f372bde9 | 324 | |
2bd926b4 AK |
325 | static inline void kasan_cache_shrink(struct kmem_cache *cache) {} |
326 | static inline void kasan_cache_shutdown(struct kmem_cache *cache) {} | |
26e760c9 | 327 | static inline void kasan_record_aux_stack(void *ptr) {} |
7cb3007c | 328 | static inline void kasan_record_aux_stack_noalloc(void *ptr) {} |
2bd926b4 AK |
329 | |
330 | #endif /* CONFIG_KASAN_GENERIC */ | |
331 | ||
2e903b91 | 332 | #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) |
3c9e3aa1 | 333 | |
c0054c56 AK |
334 | static inline void *kasan_reset_tag(const void *addr) |
335 | { | |
336 | return (void *)arch_kasan_reset_tag(addr); | |
337 | } | |
3c9e3aa1 | 338 | |
49c6631d VF |
339 | /** |
340 | * kasan_report - print a report about a bad memory access detected by KASAN | |
341 | * @addr: address of the bad access | |
342 | * @size: size of the bad access | |
343 | * @is_write: whether the bad access is a write or a read | |
344 | * @ip: instruction pointer for the accessibility check or the bad access itself | |
345 | */ | |
8cceeff4 | 346 | bool kasan_report(unsigned long addr, size_t size, |
41eea9cd AK |
347 | bool is_write, unsigned long ip); |
348 | ||
2e903b91 | 349 | #else /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ |
3c9e3aa1 AK |
350 | |
351 | static inline void *kasan_reset_tag(const void *addr) | |
352 | { | |
353 | return (void *)addr; | |
354 | } | |
355 | ||
2e903b91 AK |
356 | #endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS*/ |
357 | ||
8f7b5054 VF |
358 | #ifdef CONFIG_KASAN_HW_TAGS |
359 | ||
360 | void kasan_report_async(void); | |
361 | ||
362 | #endif /* CONFIG_KASAN_HW_TAGS */ | |
363 | ||
2e903b91 AK |
364 | #ifdef CONFIG_KASAN_SW_TAGS |
365 | void __init kasan_init_sw_tags(void); | |
366 | #else | |
367 | static inline void kasan_init_sw_tags(void) { } | |
368 | #endif | |
369 | ||
370 | #ifdef CONFIG_KASAN_HW_TAGS | |
371 | void kasan_init_hw_tags_cpu(void); | |
372 | void __init kasan_init_hw_tags(void); | |
373 | #else | |
374 | static inline void kasan_init_hw_tags_cpu(void) { } | |
375 | static inline void kasan_init_hw_tags(void) { } | |
376 | #endif | |
080eb83f | 377 | |
3c5c3cfb | 378 | #ifdef CONFIG_KASAN_VMALLOC |
3b1a4a86 | 379 | |
23689e91 AK |
380 | #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) |
381 | ||
5bd9bae2 | 382 | void kasan_populate_early_vm_area_shadow(void *start, unsigned long size); |
d98c9e83 | 383 | int kasan_populate_vmalloc(unsigned long addr, unsigned long size); |
3c5c3cfb DA |
384 | void kasan_release_vmalloc(unsigned long start, unsigned long end, |
385 | unsigned long free_region_start, | |
386 | unsigned long free_region_end); | |
3b1a4a86 | 387 | |
23689e91 AK |
388 | #else /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ |
389 | ||
390 | static inline void kasan_populate_early_vm_area_shadow(void *start, | |
391 | unsigned long size) | |
392 | { } | |
393 | static inline int kasan_populate_vmalloc(unsigned long start, | |
394 | unsigned long size) | |
395 | { | |
396 | return 0; | |
397 | } | |
398 | static inline void kasan_release_vmalloc(unsigned long start, | |
399 | unsigned long end, | |
400 | unsigned long free_region_start, | |
401 | unsigned long free_region_end) { } | |
402 | ||
403 | #endif /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ | |
404 | ||
405 | void *__kasan_unpoison_vmalloc(const void *start, unsigned long size, | |
406 | kasan_vmalloc_flags_t flags); | |
1d96320f | 407 | static __always_inline void *kasan_unpoison_vmalloc(const void *start, |
23689e91 AK |
408 | unsigned long size, |
409 | kasan_vmalloc_flags_t flags) | |
579fb0ac AK |
410 | { |
411 | if (kasan_enabled()) | |
23689e91 | 412 | return __kasan_unpoison_vmalloc(start, size, flags); |
1d96320f | 413 | return (void *)start; |
579fb0ac AK |
414 | } |
415 | ||
416 | void __kasan_poison_vmalloc(const void *start, unsigned long size); | |
417 | static __always_inline void kasan_poison_vmalloc(const void *start, | |
418 | unsigned long size) | |
419 | { | |
420 | if (kasan_enabled()) | |
421 | __kasan_poison_vmalloc(start, size); | |
422 | } | |
3252b1d8 | 423 | |
3b1a4a86 AK |
424 | #else /* CONFIG_KASAN_VMALLOC */ |
425 | ||
5bd9bae2 AK |
426 | static inline void kasan_populate_early_vm_area_shadow(void *start, |
427 | unsigned long size) { } | |
d98c9e83 AR |
428 | static inline int kasan_populate_vmalloc(unsigned long start, |
429 | unsigned long size) | |
3c5c3cfb DA |
430 | { |
431 | return 0; | |
432 | } | |
3c5c3cfb DA |
433 | static inline void kasan_release_vmalloc(unsigned long start, |
434 | unsigned long end, | |
435 | unsigned long free_region_start, | |
5bd9bae2 | 436 | unsigned long free_region_end) { } |
3b1a4a86 | 437 | |
1d96320f | 438 | static inline void *kasan_unpoison_vmalloc(const void *start, |
23689e91 AK |
439 | unsigned long size, |
440 | kasan_vmalloc_flags_t flags) | |
1d96320f AK |
441 | { |
442 | return (void *)start; | |
443 | } | |
5bd9bae2 | 444 | static inline void kasan_poison_vmalloc(const void *start, unsigned long size) |
3252b1d8 KW |
445 | { } |
446 | ||
3b1a4a86 AK |
447 | #endif /* CONFIG_KASAN_VMALLOC */ |
448 | ||
0fea6e9a AK |
449 | #if (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) && \ |
450 | !defined(CONFIG_KASAN_VMALLOC) | |
3b1a4a86 AK |
451 | |
452 | /* | |
63840de2 AK |
453 | * These functions allocate and free shadow memory for kernel modules. |
454 | * They are only required when KASAN_VMALLOC is not supported, as otherwise | |
455 | * shadow memory is allocated by the generic vmalloc handlers. | |
3b1a4a86 | 456 | */ |
63840de2 AK |
457 | int kasan_alloc_module_shadow(void *addr, size_t size, gfp_t gfp_mask); |
458 | void kasan_free_module_shadow(const struct vm_struct *vm); | |
3b1a4a86 | 459 | |
0fea6e9a | 460 | #else /* (CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS) && !CONFIG_KASAN_VMALLOC */ |
3b1a4a86 | 461 | |
63840de2 AK |
462 | static inline int kasan_alloc_module_shadow(void *addr, size_t size, gfp_t gfp_mask) { return 0; } |
463 | static inline void kasan_free_module_shadow(const struct vm_struct *vm) {} | |
3b1a4a86 | 464 | |
0fea6e9a | 465 | #endif /* (CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS) && !CONFIG_KASAN_VMALLOC */ |
3c5c3cfb | 466 | |
2f004eea JH |
467 | #ifdef CONFIG_KASAN_INLINE |
468 | void kasan_non_canonical_hook(unsigned long addr); | |
469 | #else /* CONFIG_KASAN_INLINE */ | |
470 | static inline void kasan_non_canonical_hook(unsigned long addr) { } | |
471 | #endif /* CONFIG_KASAN_INLINE */ | |
472 | ||
0b24becc | 473 | #endif /* LINUX_KASAN_H */ |