1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _LIVEPATCH_CORE_H
 3#define _LIVEPATCH_CORE_H
 4
 5#include <linux/livepatch.h>
 6
 7extern struct mutex klp_mutex;
 
 
 
 
 
 
 
 
 
 
 
 
 8
 9static inline bool klp_is_object_loaded(struct klp_object *obj)
10{
11	return !obj->name || obj->mod;
12}
13
14static inline int klp_pre_patch_callback(struct klp_object *obj)
15{
16	int ret = 0;
17
18	if (obj->callbacks.pre_patch)
19		ret = (*obj->callbacks.pre_patch)(obj);
20
21	obj->callbacks.post_unpatch_enabled = !ret;
22
23	return ret;
24}
25
26static 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
32static 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
38static 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);
43
44	obj->callbacks.post_unpatch_enabled = false;
45}
46
47#endif /* _LIVEPATCH_CORE_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _LIVEPATCH_CORE_H
 3#define _LIVEPATCH_CORE_H
 4
 5#include <linux/livepatch.h>
 6
 7extern struct mutex klp_mutex;
 8extern struct list_head klp_patches;
 9
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
16void klp_free_patch_async(struct klp_patch *patch);
17void klp_free_replaced_patches_async(struct klp_patch *new_patch);
18void klp_unpatch_replaced_patches(struct klp_patch *new_patch);
19void klp_discard_nops(struct klp_patch *new_patch);
20
21static inline bool klp_is_object_loaded(struct klp_object *obj)
22{
23	return !obj->name || obj->mod;
24}
25
26static inline int klp_pre_patch_callback(struct klp_object *obj)
27{
28	int ret = 0;
29
30	if (obj->callbacks.pre_patch)
31		ret = (*obj->callbacks.pre_patch)(obj);
32
33	obj->callbacks.post_unpatch_enabled = !ret;
34
35	return ret;
36}
37
38static inline void klp_post_patch_callback(struct klp_object *obj)
39{
40	if (obj->callbacks.post_patch)
41		(*obj->callbacks.post_patch)(obj);
42}
43
44static inline void klp_pre_unpatch_callback(struct klp_object *obj)
45{
46	if (obj->callbacks.pre_unpatch)
47		(*obj->callbacks.pre_unpatch)(obj);
48}
49
50static inline void klp_post_unpatch_callback(struct klp_object *obj)
51{
52	if (obj->callbacks.post_unpatch_enabled &&
53	    obj->callbacks.post_unpatch)
54		(*obj->callbacks.post_unpatch)(obj);
55
56	obj->callbacks.post_unpatch_enabled = false;
57}
58
59#endif /* _LIVEPATCH_CORE_H */