linux-kernel - Re: [RFC PATCH v5 1/3] Tracepoint cleanup: remove unused API functions

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Date:	Wed, 19 Mar 2014 10:33:55 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Johannes Berg <johannes.berg@...el.com>
Subject: Re: [RFC PATCH v5 1/3] Tracepoint cleanup: remove unused API
 functions

On Tue, 18 Mar 2014 10:05:44 -0400
Mathieu Desnoyers <mathieu.desnoyers@...icios.com> wrote:

> After the following commit:
> 
> commit b75ef8b44b1cb95f5a26484b0e2fe37a63b12b44
> Author: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
> Date:   Wed Aug 10 15:18:39 2011 -0400
> 
>     Tracepoint: Dissociate from module mutex
> 
> The following functions became unnecessary:
> 
> - tracepoint_probe_register_noupdate,
> - tracepoint_probe_unregister_noupdate,
> - tracepoint_probe_update_all.
> 
> In fact, none of the in-kernel tracers, nor LTTng, nor SystemTAP use
> them. Remove those.
> 
> Moreover, the functions:
> 
> - tracepoint_iter_start,
> - tracepoint_iter_next,
> - tracepoint_iter_stop,
> - tracepoint_iter_reset.
> 
> are unused by in-kernel tracers, LTTng and SystemTAP. Remove those too.
> 

New warning caused by this patch:

tracepoint.c:446:13: warning: 'tracepoint_add_old_probes' defined but not used [-Wunused-function]
    struct tp_probes, probes[0]);

--  Steve
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