Commit 7bb83f6fc4ee for kernel

commit 7bb83f6fc4ee84e95d0ac0d14452c2619fb3fe70
Author: Masami Hiramatsu <>
Date:   Fri Jan 8 13:19:38 2021 +0900

    tracing/kprobes: Do the notrace functions check without kprobes on ftrace

    Enable the notrace function check on the architecture which doesn't
    support kprobes on ftrace but support dynamic ftrace. This notrace
    function check is not only for the kprobes on ftrace but also
    sw-breakpoint based kprobes.
    Thus there is no reason to limit this check for the arch which
    supports kprobes on ftrace.

    This also changes the dependency of Kconfig. Because kprobe event
    uses the function tracer's address list for identifying notrace
    function, if the CONFIG_DYNAMIC_FTRACE=n, it can not check whether
    the target function is notrace or not.


    Fixes: 45408c4f92506 ("tracing: kprobes: Prohibit probing on notrace function")
    Acked-by: Naveen N. Rao <>
    Signed-off-by: Masami Hiramatsu <>
    Signed-off-by: Steven Rostedt (VMware) <>

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index d5a19413d4f8..c1a62ae7e812 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -538,7 +538,7 @@ config KPROBE_EVENTS
 	bool "Do NOT protect notrace function from kprobe events"
 	depends on KPROBE_EVENTS
-	depends on KPROBES_ON_FTRACE
+	depends on DYNAMIC_FTRACE
 	default n
 	  This is only for the developers who want to debug ftrace itself
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 9c31f42245e9..e6fba1798771 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -434,7 +434,7 @@ static int disable_trace_kprobe(struct trace_event_call *call,
 	return 0;

-#if defined(CONFIG_KPROBES_ON_FTRACE) && \
+#if defined(CONFIG_DYNAMIC_FTRACE) && \
 static bool __within_notrace_func(unsigned long addr)