From: Namhyung Kim <namhyung@kernel.org>
To: Feng Tang <feng.tang@intel.com>
Cc: acme@redhat.com, mingo@elte.hu, a.p.zijlstra@chello.nl,
andi@firstfloor.org, dsahern@gmail.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 7/9] perf header: Add check_perf_magic() func
Date: Tue, 25 Sep 2012 11:07:15 +0900 [thread overview]
Message-ID: <87haqmyhws.fsf@sejong.aot.lge.com> (raw)
In-Reply-To: <1348500251-9937-8-git-send-email-feng.tang@intel.com> (Feng Tang's message of "Mon, 24 Sep 2012 23:24:09 +0800")
On Mon, 24 Sep 2012 23:24:09 +0800, Feng Tang wrote:
[snip]
> +/* Return 0 if matched */
> +int check_perf_magic(u64 magic)
> +{
> + if (!memcmp(&magic, __perf_magic1, sizeof(magic))
> + || magic == __perf_magic2
> + || magic == __perf_magic2_sw)
> + return 0;
> +
> + return -1;
> +}
Just an idea. How about returning version number instead of 0 so that
it can be used elsewhere those check is needed and possibly wants to
know the version number also?
Thanks,
Namhyung
next prev parent reply other threads:[~2012-09-25 2:15 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-24 15:24 [PATCH v3 0/9] perf tools: Add script browser and runtime data file switch Feng Tang
2012-09-24 15:24 ` [PATCH v3 1/9] perf hists: Move hists_init() from util/evsel.c to util/hist.c Feng Tang
2012-09-24 16:02 ` Arnaldo Carvalho de Melo
2012-09-25 1:25 ` Namhyung Kim
2012-09-25 11:05 ` Arnaldo Carvalho de Melo
2012-09-25 12:59 ` Namhyung Kim
2012-09-25 13:30 ` perf tools regression testing was " Arnaldo Carvalho de Melo
2012-09-25 13:47 ` Namhyung Kim
2012-09-25 14:10 ` Arnaldo Carvalho de Melo
2012-09-25 8:03 ` Feng Tang
2012-09-24 15:24 ` [PATCH v3 2/9] perf tool: Add a global variable "const char *input_name" Feng Tang
2012-09-24 15:24 ` [PATCH v3 3/9] perf script: Add more filter to find_scripts() Feng Tang
2012-09-25 1:47 ` Namhyung Kim
2012-09-26 8:56 ` Feng Tang
2012-09-27 4:45 ` Namhyung Kim
2012-09-27 10:39 ` Namhyung Kim
2012-09-24 15:24 ` [PATCH v3 4/9] perf ui/browser: Add a browser for perf script Feng Tang
2012-09-24 15:24 ` [PATCH v3 5/9] perf ui/browser: Integrate script browser into annotation browser Feng Tang
2012-09-24 15:24 ` [PATCH v3 6/9] perf ui/browser: Integrate script browser into main hists browser Feng Tang
2012-09-24 15:24 ` [PATCH v3 7/9] perf header: Add check_perf_magic() func Feng Tang
2012-09-24 16:01 ` Arnaldo Carvalho de Melo
2012-09-25 2:07 ` Namhyung Kim [this message]
2012-09-25 8:21 ` Feng Tang
2012-09-25 11:22 ` Arnaldo Carvalho de Melo
2012-09-24 15:24 ` [PATCH v3 8/9] perf hists browser: Add option for runtime switching perf data file Feng Tang
2012-09-25 2:11 ` Namhyung Kim
2012-09-25 8:20 ` Feng Tang
2012-09-25 11:17 ` Arnaldo Carvalho de Melo
2012-09-26 7:57 ` Feng Tang
2012-09-27 4:02 ` Namhyung Kim
2012-09-27 5:43 ` Feng Tang
2012-09-24 15:24 ` [PATCH v3 9/9] perf report: Enable the runtime switching of " Feng Tang
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