tracing/function-return-tracer: clean up task start/exit callbacks
Impact: cleanup
Eliminate #ifdefs in core code by using empty inline functions.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 2ba259b..938ca19 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -335,6 +335,9 @@
extern void ftrace_retfunc_init_task(struct task_struct *t);
extern void ftrace_retfunc_exit_task(struct task_struct *t);
+#else
+static inline void ftrace_retfunc_init_task(struct task_struct *t) { }
+static inline void ftrace_retfunc_exit_task(struct task_struct *t) { }
#endif
#endif /* _LINUX_FTRACE_H */