hi, I am working on the below API's ---------------------------------------------------- Add an API to set filtering of functions: int tracefs_function_filter(struct tracefs_instance *instance, const char *filter); Which would write into the set_ftrace_filter file for the instance. Also have a: int tracefs_function_notrace(struct tracefs_instance *instance, const char *filter); That would write into the set_ftrace_notrace file for the instance. Have a: int tracefs_function_filter_clear(struct tracefs_instance *instance); That clears the set_ftrace_filter file. and a: int tracefs_function_notrace_clear(struct tracefs_instance *instance); That clears the set_ftrace_notrace file. ---------------------------------------------------------- Bugzilla link: https://bugzilla.kernel.org/show_bug.cgi?id=210643 if there is anyone already working on these API's please let me know. Thanks, sameer.