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authorSong Liu <songliubraving@fb.com>2018-04-13 11:55:13 -0700
committerIngo Molnar <mingo@kernel.org>2018-04-17 07:54:57 +0200
commit5c8dad48e4f53d6fd0a7e4f95d7c1c983374de88 (patch)
tree6fa600c710b0c20accfbc042be9a116e5b1e72eb /kernel/trace
parentaacd188a2deea4e0886e43641cdae6b47b540b7f (diff)
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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/trace')
-rw-r--r--kernel/trace/trace_kprobe.c2
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;