linux-kernel - Re: [PATCH] perf: Remove unused add_perf_probe

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Message-ID: <Zvo2PxCFp5M1JTND@google.com>
Date: Sun, 29 Sep 2024 22:25:19 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: linux@...blig.org
Cc: irogers@...gle.com, peterz@...radead.org, mingo@...hat.com,
	acme@...nel.org, jolsa@...nel.org, linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Masami Hiramatsu <mhiramat@...nel.org>
Subject: Re: [PATCH] perf: Remove unused add_perf_probe_events

Adding Masami to CC.

On Sun, Sep 29, 2024 at 02:06:59AM +0100, linux@...blig.org wrote:
> From: "Dr. David Alan Gilbert" <linux@...blig.org>
> 
> add_perf_probe_events has been unused since 2015's commit
> b02137cc6550 ("perf probe: Move print logic into cmd_probe()")
> which confusingly now uses perf_add_probe_events.
> 
> Remove it.
> 
> Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
> ---
>  tools/perf/util/probe-event.c | 18 ------------------
>  tools/perf/util/probe-event.h |  1 -
>  2 files changed, 19 deletions(-)
> 
> diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
> index a17c9b8a7a79..698a92875374 100644
> --- a/tools/perf/util/probe-event.c
> +++ b/tools/perf/util/probe-event.c
> @@ -3705,24 +3705,6 @@ void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs)
>  	}
>  }
>  
> -int add_perf_probe_events(struct perf_probe_event *pevs, int npevs)
> -{
> -	int ret;
> -
> -	ret = init_probe_symbol_maps(pevs->uprobes);
> -	if (ret < 0)
> -		return ret;
> -
> -	ret = convert_perf_probe_events(pevs, npevs);
> -	if (ret == 0)
> -		ret = apply_perf_probe_events(pevs, npevs);
> -
> -	cleanup_perf_probe_events(pevs, npevs);
> -
> -	exit_probe_symbol_maps();
> -	return ret;
> -}
> -
>  int del_perf_probe_events(struct strfilter *filter)
>  {
>  	int ret, ret2, ufd = -1, kfd = -1;
> diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
> index 7e3b6c3d1f74..4850e52f274e 100644
> --- a/tools/perf/util/probe-event.h
> +++ b/tools/perf/util/probe-event.h
> @@ -159,7 +159,6 @@ void line_range__clear(struct line_range *lr);
>  /* Initialize line range */
>  int line_range__init(struct line_range *lr);
>  
> -int add_perf_probe_events(struct perf_probe_event *pevs, int npevs);
>  int convert_perf_probe_events(struct perf_probe_event *pevs, int npevs);
>  int apply_perf_probe_events(struct perf_probe_event *pevs, int npevs);
>  int show_probe_trace_events(struct perf_probe_event *pevs, int npevs);
> -- 
> 2.46.2
>