]>
Commit | Line | Data |
---|---|---|
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 | 7 | extern struct mutex klp_mutex; |
68007289 | 8 | extern struct list_head klp_patches; |
10517429 | 9 | |
ecba29f4 PM |
10 | #define klp_for_each_patch_safe(patch, tmp_patch) \ |
11 | list_for_each_entry_safe(patch, tmp_patch, &klp_patches, list) | |
12 | ||
13 | #define klp_for_each_patch(patch) \ | |
14 | list_for_each_entry(patch, &klp_patches, list) | |
15 | ||
958ef1e3 | 16 | void klp_free_patch_start(struct klp_patch *patch); |
e1452b60 | 17 | void klp_discard_replaced_patches(struct klp_patch *new_patch); |
d697bad5 | 18 | void klp_discard_nops(struct klp_patch *new_patch); |
958ef1e3 | 19 | |
93862e38 JL |
20 | static inline bool klp_is_object_loaded(struct klp_object *obj) |
21 | { | |
22 | return !obj->name || obj->mod; | |
23 | } | |
24 | ||
25 | static inline int klp_pre_patch_callback(struct klp_object *obj) | |
26 | { | |
5aaf1ab5 | 27 | int ret = 0; |
93862e38 | 28 | |
5aaf1ab5 PM |
29 | if (obj->callbacks.pre_patch) |
30 | ret = (*obj->callbacks.pre_patch)(obj); | |
93862e38 JL |
31 | |
32 | obj->callbacks.post_unpatch_enabled = !ret; | |
33 | ||
34 | return ret; | |
35 | } | |
36 | ||
37 | static inline void klp_post_patch_callback(struct klp_object *obj) | |
38 | { | |
39 | if (obj->callbacks.post_patch) | |
40 | (*obj->callbacks.post_patch)(obj); | |
41 | } | |
42 | ||
43 | static inline void klp_pre_unpatch_callback(struct klp_object *obj) | |
44 | { | |
45 | if (obj->callbacks.pre_unpatch) | |
46 | (*obj->callbacks.pre_unpatch)(obj); | |
47 | } | |
48 | ||
49 | static inline void klp_post_unpatch_callback(struct klp_object *obj) | |
50 | { | |
51 | if (obj->callbacks.post_unpatch_enabled && | |
52 | obj->callbacks.post_unpatch) | |
53 | (*obj->callbacks.post_unpatch)(obj); | |
5aaf1ab5 PM |
54 | |
55 | obj->callbacks.post_unpatch_enabled = false; | |
93862e38 JL |
56 | } |
57 | ||
10517429 | 58 | #endif /* _LIVEPATCH_CORE_H */ |