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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
10517429 JK |
2 | #ifndef _LIVEPATCH_CORE_H |
3 | #define _LIVEPATCH_CORE_H | |
4 | ||
93862e38 JL |
5 | #include <linux/livepatch.h> |
6 | ||
10517429 JK |
7 | extern struct mutex klp_mutex; |
8 | ||
93862e38 JL |
9 | static inline bool klp_is_object_loaded(struct klp_object *obj) |
10 | { | |
11 | return !obj->name || obj->mod; | |
12 | } | |
13 | ||
14 | static inline int klp_pre_patch_callback(struct klp_object *obj) | |
15 | { | |
5aaf1ab5 | 16 | int ret = 0; |
93862e38 | 17 | |
5aaf1ab5 PM |
18 | if (obj->callbacks.pre_patch) |
19 | ret = (*obj->callbacks.pre_patch)(obj); | |
93862e38 JL |
20 | |
21 | obj->callbacks.post_unpatch_enabled = !ret; | |
22 | ||
23 | return ret; | |
24 | } | |
25 | ||
26 | static inline void klp_post_patch_callback(struct klp_object *obj) | |
27 | { | |
28 | if (obj->callbacks.post_patch) | |
29 | (*obj->callbacks.post_patch)(obj); | |
30 | } | |
31 | ||
32 | static inline void klp_pre_unpatch_callback(struct klp_object *obj) | |
33 | { | |
34 | if (obj->callbacks.pre_unpatch) | |
35 | (*obj->callbacks.pre_unpatch)(obj); | |
36 | } | |
37 | ||
38 | static inline void klp_post_unpatch_callback(struct klp_object *obj) | |
39 | { | |
40 | if (obj->callbacks.post_unpatch_enabled && | |
41 | obj->callbacks.post_unpatch) | |
42 | (*obj->callbacks.post_unpatch)(obj); | |
5aaf1ab5 PM |
43 | |
44 | obj->callbacks.post_unpatch_enabled = false; | |
93862e38 JL |
45 | } |
46 | ||
10517429 | 47 | #endif /* _LIVEPATCH_CORE_H */ |