1 files changed, 18 insertions, 0 deletions

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index f0a0ecc63b5c..13918c4400ad 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -106,6 +106,24 @@ struct ftrace_func_command {
 /* asm/ftrace.h must be defined for archs supporting dynamic ftrace */
 #include <asm/ftrace.h>
 
+struct ftrace_hook_ops {
+        void                    (*func)(unsigned long ip,
+                                        unsigned long parent_ip,
+                                        void **data);
+        int                     (*callback)(unsigned long ip, void **data);
+        void                    (*free)(void **data);
+};
+
+extern int
+register_ftrace_function_hook(char *glob, struct ftrace_hook_ops *ops,
+                              void *data);
+extern void
+unregister_ftrace_function_hook(char *glob, struct ftrace_hook_ops *ops,
+                                void *data);
+extern void
+unregister_ftrace_function_hook_func(char *glob, struct ftrace_hook_ops *ops);
+extern void unregister_ftrace_function_hook_all(char *glob);
+
 enum {
         FTRACE_FL_FREE          = (1 << 0),
         FTRACE_FL_FAILED        = (1 << 1),