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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
64f8ebaf AR |
2 | #ifndef _LINUX_KASAN_CHECKS_H |
3 | #define _LINUX_KASAN_CHECKS_H | |
4 | ||
b5f6e0fc ME |
5 | #include <linux/types.h> |
6 | ||
7d8ad890 ME |
7 | /* |
8 | * __kasan_check_*: Always available when KASAN is enabled. This may be used | |
9 | * even in compilation units that selectively disable KASAN, but must use KASAN | |
10 | * to validate access to an address. Never use these in header files! | |
11 | */ | |
12 | #ifdef CONFIG_KASAN | |
b5f6e0fc ME |
13 | bool __kasan_check_read(const volatile void *p, unsigned int size); |
14 | bool __kasan_check_write(const volatile void *p, unsigned int size); | |
7d8ad890 | 15 | #else |
b5f6e0fc ME |
16 | static inline bool __kasan_check_read(const volatile void *p, unsigned int size) |
17 | { | |
18 | return true; | |
19 | } | |
20 | static inline bool __kasan_check_write(const volatile void *p, unsigned int size) | |
21 | { | |
22 | return true; | |
23 | } | |
7d8ad890 ME |
24 | #endif |
25 | ||
26 | /* | |
27 | * kasan_check_*: Only available when the particular compilation unit has KASAN | |
28 | * instrumentation enabled. May be used in header files. | |
29 | */ | |
30 | #ifdef __SANITIZE_ADDRESS__ | |
31 | #define kasan_check_read __kasan_check_read | |
32 | #define kasan_check_write __kasan_check_write | |
64f8ebaf | 33 | #else |
b5f6e0fc ME |
34 | static inline bool kasan_check_read(const volatile void *p, unsigned int size) |
35 | { | |
36 | return true; | |
37 | } | |
38 | static inline bool kasan_check_write(const volatile void *p, unsigned int size) | |
39 | { | |
40 | return true; | |
41 | } | |
64f8ebaf AR |
42 | #endif |
43 | ||
44 | #endif |