Commit-ID: 5c8dad48e4f53d6fd0a7e4f95d7c1c983374de88
Gitweb: https://git.kernel.org/tip/5c8dad48e4f53d6fd0a7e4f95d7c1c983374de88
Author: Song Liu <[email protected]>
AuthorDate: Fri, 13 Apr 2018 11:55:13 -0700
Committer: Ingo Molnar <[email protected]>
CommitDate: Tue, 17 Apr 2018 07:54:57 +0200
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 <[email protected]>
Signed-off-by: Song Liu <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
kernel/trace/trace_kprobe.c | 2 --
1 file changed, 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;
