blob: e72d8250d04bcbb83c5b4f99313b557a3d340d6b [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/livepatch.h>
#include <linux/list.h>
#include <linux/ftrace.h>
* struct klp_ops - structure for tracking registered ftrace ops structs
* A single ftrace_ops is shared between all enabled replacement functions
* (klp_func structs) which have the same old_addr. This allows the switch
* between function versions to happen instantaneously by updating the klp_ops
* struct's func_stack list. The winner is the klp_func at the top of the
* func_stack (front of the list).
* @node: node for the global klp_ops list
* @func_stack: list head for the stack of klp_func's (active func is on top)
* @fops: registered ftrace ops struct
struct klp_ops {
struct list_head node;
struct list_head func_stack;
struct ftrace_ops fops;
struct klp_ops *klp_find_ops(unsigned long old_addr);
int klp_patch_object(struct klp_object *obj);
void klp_unpatch_object(struct klp_object *obj);
void klp_unpatch_objects(struct klp_patch *patch);
#endif /* _LIVEPATCH_PATCH_H */