/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LIVEPATCH_CORE_H #define _LIVEPATCH_CORE_H #include <linux/livepatch.h> extern struct mutex klp_mutex; extern struct list_head klp_patches; #define klp_for_each_patch_safe(patch, tmp_patch) \ list_for_each_entry_safe(patch, tmp_patch, &klp_patches, list) #define klp_for_each_patch(patch) \ list_for_each_entry(patch, &klp_patches, list) void klp_free_patch_async(struct klp_patch *patch); void klp_free_replaced_patches_async(struct klp_patch *new_patch); void klp_unpatch_replaced_patches(struct klp_patch *new_patch); void klp_discard_nops(struct klp_patch *new_patch); static inline bool klp_is_object_loaded(struct klp_object *obj) { return !obj->name || obj->mod; } static inline int klp_pre_patch_callback(struct klp_object *obj) { int ret = 0; if (obj->callbacks.pre_patch) ret = (*obj->callbacks.pre_patch)(obj); obj->callbacks.post_unpatch_enabled = !ret; return ret; } static inline void klp_post_patch_callback(struct klp_object *obj) { if (obj->callbacks.post_patch) (*obj->callbacks.post_patch)(obj); } static inline void klp_pre_unpatch_callback(struct klp_object *obj) { if (obj->callbacks.pre_unpatch) (*obj->callbacks.pre_unpatch)(obj); } static inline void klp_post_unpatch_callback(struct klp_object *obj) { if (obj->callbacks.post_unpatch_enabled && obj->callbacks.post_unpatch) (*obj->callbacks.post_unpatch)(obj); obj->callbacks.post_unpatch_enabled = false; } #endif /* _LIVEPATCH_CORE_H */