linux-kernel - Re: [BUG] perf list: --help option not implemented

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Date:	Mon, 22 Oct 2012 07:26:05 -0600
From:	David Ahern <dsahern@...il.com>
To:	Namhyung Kim <namhyung@...nel.org>
CC:	Jiri Olsa <jolsa@...hat.com>,
	Stephane Eranian <eranian@...gle.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	"mingo@...e.hu" <mingo@...e.hu>
Subject: Re: [BUG] perf list: --help option not implemented

On 10/22/12 1:12 AM, Namhyung Kim wrote:
> It seems that commit cc5848213329 ("perf help: Remove use of die and
> handle errors") caused the problem - it changed the initial value of
> 'help_format' from HELP_FORMAT_MAN to HELP_FORMAT_NONE.
>
> The following patch works well for me:
>
> diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
> index 411ee5664e98..178b88ae3d2f 100644
> --- a/tools/perf/builtin-help.c
> +++ b/tools/perf/builtin-help.c
> @@ -414,7 +414,7 @@ static int show_html_page(const char *perf_cmd)
>   int cmd_help(int argc, const char **argv, const char *prefix __maybe_unused)
>   {
>   	bool show_all = false;
> -	enum help_format help_format = HELP_FORMAT_NONE;
> +	enum help_format help_format = HELP_FORMAT_MAN;
>   	struct option builtin_help_options[] = {
>   	OPT_BOOLEAN('a', "all", &show_all, "print all available commands"),
>   	OPT_SET_UINT('m', "man", &help_format, "show man page", HELP_FORMAT_MAN),
>

D'oh. Thanks for debugging, Namhyung.

Acked-by/Tested-by: David Ahern <dsahern@...il.com>
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