From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <yuanhan.liu@linux.intel.com>
Received: from mga06.intel.com (mga06.intel.com [134.134.136.31])
 by dpdk.org (Postfix) with ESMTP id 1CCF1378E
 for <dev@dpdk.org>; Sun, 18 Sep 2016 10:16:15 +0200 (CEST)
Received: from fmsmga002.fm.intel.com ([10.253.24.26])
 by orsmga104.jf.intel.com with ESMTP; 18 Sep 2016 01:16:14 -0700
X-ExtLoop1: 1
X-IronPort-AV: E=Sophos;i="5.30,355,1470726000"; d="scan'208";a="1058381981"
Received: from yliu-dev.sh.intel.com (HELO yliu-dev) ([10.239.67.162])
 by fmsmga002.fm.intel.com with ESMTP; 18 Sep 2016 01:16:13 -0700
Date: Sun, 18 Sep 2016 16:16:43 +0800
From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: John Griffin <john.griffin@intel.com>
Cc: dev@dpdk.org, eoin.breen@intel.com, pablo.de.lara.guarch@intel.com
Message-ID: <20160918081643.GE23158@yliu-dev.sh.intel.com>
References: <1472725298-8455-1-git-send-email-john.griffin@intel.com>
 <20160905032356.GH30752@yliu-dev.sh.intel.com>
 <57D96D9E.8040301@intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <57D96D9E.8040301@intel.com>
User-Agent: Mutt/1.5.23 (2014-03-12)
Subject: Re: [dpdk-dev] [PATCH] crypto/qat: fix memzone creation to use a
 fixed size string
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: patches and discussions about DPDK <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>
X-List-Received-Date: Sun, 18 Sep 2016 08:16:16 -0000

On Wed, Sep 14, 2016 at 04:32:46PM +0100, John Griffin wrote:
> Hi Liu,
> Comments embedded.
> 
> Rgds,
> John.
> 
> On 05/09/16 04:23, Yuanhan Liu wrote:
> >On Thu, Sep 01, 2016 at 11:21:38AM +0100, John Griffin wrote:
> >>Remove the dependency on dev->driver->pci_drv.name when
> >>creating the memzone for the qat hardware queues.
> >>The pci_drv.name may grow too large for RTE_MEMZONE_NAMESIZE.
> >
> >Will the "may grow too large" cause any issues? If so, state it here. If
> >not, marking this patch as a "fix" patch doesn't make sense to me then.
> We discovered this when applying a future patch (2141c21966) and it exposed
> this issue.
> Problem is we create a memzone per hardware queue pair and if the memzone
> name is too large, then this code will not produce a unique
> name and two qps will end using the same memzone.

Thanks for the info, and I think you should put it in the commit log: it
helps people to really know what might go wrong without this fix.

	--yliu