redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

tracing/kprobes: Avoid self tests if tracing is disabled on boot up 

If tracing is disabled on boot up, the kernel should not execute tracing
self tests. The kernel should check whether tracing is disabled or not
before executing any of the tracing self tests.

Link: http://lkml.kernel.org/p/20140605223520.32311.56097.stgit@yunodevel

Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
hifive-unleashed-5.1
Yoshihiro YUNOMAE 2014-06-06 07:35:20 +09:00 committed by Steven Rostedt
parent dc81e5e3ab
commit 748ec3a20e
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
kernel/trace/trace_kprobe.c
View File

@ -1377,6 +1377,9 @@ static __init int kprobe_trace_self_tests_init(void)
struct trace_kprobe *tk;
struct ftrace_event_file *file;
if (tracing_is_disabled())
return -ENODEV;
target = kprobe_trace_selftest_target;
pr_info("Testing kprobe tracing: ");