linux-kernel - Re: [PATCH] perf tools: set GUI mode after returning from perf_session_

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Date:   Tue, 5 Dec 2017 01:11:49 +0900
From:   SeokHo Song <0xdevssh@...il.com>
To:     Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
Cc:     Namhyung Kim <namhyung@...nel.org>, linux-kernel@...r.kernel.org,
        Jiri Olsa <jolsa@...nel.org>
Subject: Re: [PATCH] perf tools: set GUI mode after returning from perf_session__new()

Hi Arnaldo,

2017-12-05 0:45 GMT+09:00 Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>:
> Em Tue, Dec 05, 2017 at 12:05:18AM +0900, Namhyung Kim escreveu:
>> Hi SeokHo,
>>
>> On Sun, Dec 3, 2017 at 10:50 PM, Song Seok Ho <0xdevssh@...il.com> wrote:
>> > If perf_session__new() returns NULL with use_browser set to 2 via --gtk option
>> > previously, perf dies quietly without printing any errors.
>> >
>> > The reason behind this is that GTK is not yet initialized when the caller
>> > inside perf_session__new() is trying to print error message to the screen.
>> >
>> > Reorder code to print the messages to stdio when GTK is not yet ready.
>>
>> I'm ok with this change, but it needs to consider other error messages too.
>> There are more pr_err() calls between perf_session__new() and
>> setup_browser(), so I think they have same problem.
>
> So I think I can apply this one, with Namhyung's acked-by and then Song
> can continue with followup patches?
>
> - Arnaldo
>

I've sent a follow-up patch with a new title "[PATCH v2] perf tools:
set browser mode
right before setup_browser()" with Namhyung's Acked-by added.

Addressing Namhyung's comment, I've moved the use_browser variable assignment
code below when setup_browser() is called.

Please let me know if it deserves to be in a different place.

Thanks.