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| author | Song Liu <songliubraving@fb.com> | 2018-04-13 11:55:13 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-04-17 07:54:57 +0200 |
| commit | 5c8dad48e4f53d6fd0a7e4f95d7c1c983374de88 (patch) | |
| tree | 6fa600c710b0c20accfbc042be9a116e5b1e72eb /kernel | |
| parent | aacd188a2deea4e0886e43641cdae6b47b540b7f (diff) | |
| download | linux-stable-5c8dad48e4f53d6fd0a7e4f95d7c1c983374de88.tar.gz linux-stable-5c8dad48e4f53d6fd0a7e4f95d7c1c983374de88.tar.bz2 linux-stable-5c8dad48e4f53d6fd0a7e4f95d7c1c983374de88.zip | |
trace_kprobe: Remove warning message "Could not insert probe at..."
This warning message is not very helpful, as the return value should
already show information about the error. Also, this message will
spam dmesg if the user space does testing in a loop, like:
for x in {0..5}
do
echo p:xx xx+$x >> /sys/kernel/debug/tracing/kprobe_events
done
Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Song Liu <songliubraving@fb.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-team@fb.com
Link: http://lkml.kernel.org/r/20180413185513.3626052-1-songliubraving@fb.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace_kprobe.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 1cd3fb4d70f8..02aed76e0978 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -512,8 +512,6 @@ static int __register_trace_kprobe(struct trace_kprobe *tk) if (ret == 0) tk->tp.flags |= TP_FLAG_REGISTERED; else { - pr_warn("Could not insert probe at %s+%lu: %d\n", - trace_kprobe_symbol(tk), trace_kprobe_offset(tk), ret); if (ret == -ENOENT && trace_kprobe_is_on_module(tk)) { pr_warn("This probe might be able to register after target module is loaded. Continue.\n"); ret = 0; |