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tracing: samples: Initialize trace_array_printk() with the correct function

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commit 1b0c192c92ea1fe2dcb178f84adf15fe37c3e7c8 upstream.

When using trace_array_printk() on a created instance, the correct
function to use to initialize it is:

  trace_array_init_printk()

Not

  trace_printk_init_buffer()

The former is a proper function to use, the latter is for initializing
trace_printk() and causes the NOTICE banner to be displayed.

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Divya Indi <divya.indi@oracle.com>
Link: https://lore.kernel.org/20250509152657.0f6744d9@gandalf.local.home
Fixes: 89ed42495e ("tracing: Sample module to demonstrate kernel access to Ftrace instances.")
Fixes: 38ce2a9e33 ("tracing: Add trace_array_init_printk() to initialize instance trace_printk() buffers")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Steven Rostedt 2025-05-09 15:26:57 -04:00 committed by Greg Kroah-Hartman
parent 9d1216bf49
commit b1627af84e
1 changed files with 1 additions and 1 deletions
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2
samples/ftrace/sample-trace-array.c
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@ -112,7 +112,7 @@ static int __init sample_trace_array_init(void)
/*
* If context specific per-cpu buffers havent already been allocated.
*/
trace_printk_init_buffers();
trace_array_init_printk(tr);
simple_tsk = kthread_run(simple_thread, NULL, "sample-instance");
if (IS_ERR(simple_tsk)) {