From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas.monjalon@6wind.com>
Subject: Re: [PATCH v2 1/3] eal: add quiet mode to suppress log
	output to stdout
Date: Thu, 05 Jan 2017 16:40:14 +0100
Message-ID: <2615371.2k6WulVlxV@xps13>
References: <1480691702-4600-1-git-send-email-michalx.k.jastrzebski@intel.com>
 <1483635001-15473-1-git-send-email-slawomirx.mrozowicz@intel.com>
 <1483635001-15473-2-git-send-email-slawomirx.mrozowicz@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7Bit
Cc: dev@dpdk.org
To: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>,
 Declan Doherty <declan.doherty@intel.com>
Return-path: <dev-bounces@dpdk.org>
Received: from mail-wm0-f42.google.com (mail-wm0-f42.google.com [74.125.82.42])
 by dpdk.org (Postfix) with ESMTP id D1E32214A
 for <dev@dpdk.org>; Thu,  5 Jan 2017 16:40:16 +0100 (CET)
Received: by mail-wm0-f42.google.com with SMTP id k184so292686822wme.1
 for <dev@dpdk.org>; Thu, 05 Jan 2017 07:40:16 -0800 (PST)
In-Reply-To: <1483635001-15473-2-git-send-email-slawomirx.mrozowicz@intel.com>
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>

2017-01-05 17:49, Slawomir Mrozowicz:
> Add EAL option to suppresses all log output to stdout.
> 
> Signed-off-by: Declan Doherty <declan.doherty@intel.com>
[...]
>  	       "  --"OPT_LOG_LEVEL"         Set default log level\n"
> +		"  -s, --"OPT_LOG_STDOUT_SILENT" Silent mode, suppresses log "
> +		"output to stdout\n"

How does it behave when the app configure a custom log function which
prints to stdout?

Generally speaking, we should stop adding such options in DPDK and
move this kind of responsibility to the applications (providing some API
and helpers).