linux-kernel - Re: [PATCH 1/3] tracing: Build event generation tests only as modules

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Date: Mon, 10 Jun 2024 17:42:32 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Linux Trace Kernel
 <linux-trace-kernel@...r.kernel.org>, Tom Zanussi <zanussi@...nel.org>
Subject: Re: [PATCH 1/3] tracing: Build event generation tests only as
 modules

On Tue, 11 Jun 2024 06:26:34 +0900
"Masami Hiramatsu (Google)" <mhiramat@...nel.org> wrote:

> The kprobes and synth event generation test modules add events and lock
> (get a reference) those event file reference in module init function,
> and unlock and delete it in module exit function. This is because those
> are designed for playing as modules.
> 
> If we make those modules as built-in, those events are left locked in the
> kernel, and never be removed. This causes kprobe event self-test failure
> as below.

Reviewed-by: Steven Rostedt (Google) <rostedt@...dmis.org>

-- Steve