From: Steven Rostedt When CONFIG_DYNAMIC_FTRACE is not set, ftrace_location() is not defined. If a user (like kprobes) references this function, it will break the compile when CONFIG_DYNAMIC_FTRACE is not set. Add ftrace_location() as a nop (return 0) when DYNAMIC_FTRACE is not defined. Signed-off-by: Steven Rostedt --- include/linux/ftrace.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 34ac110..271d006 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -500,7 +500,7 @@ extern int skip_trace(unsigned long ip); extern void ftrace_disable_daemon(void); extern void ftrace_enable_daemon(void); -#else +#else /* CONFIG_DYNAMIC_FTRACE */ static inline int skip_trace(unsigned long ip) { return 0; } static inline int ftrace_force_update(void) { return 0; } static inline void ftrace_disable_daemon(void) { } @@ -518,6 +518,10 @@ static inline int ftrace_text_reserved(void *start, void *end) { return 0; } +static inline unsigned long ftrace_location(unsigned long ip) +{ + return 0; +} /* * Again users of functions that have ftrace_ops may not -- 1.7.10 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/