From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olivier MATZ <olivier.matz-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH v2 09/13] mbuf: introduce new checksum API
Date: Tue, 18 Nov 2014 10:10:47 +0100
Message-ID: <546B0D17.7050503@6wind.com>
References: <1415635166-1364-1-git-send-email-olivier.matz@6wind.com>
 <1415984609-2484-1-git-send-email-olivier.matz@6wind.com>
 <1415984609-2484-10-git-send-email-olivier.matz@6wind.com>
 <2601191342CEEE43887BDE71AB977258213AE563@IRSMSX105.ger.corp.intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: "jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org" <jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: "Ananyev, Konstantin" <konstantin.ananyev-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
 "dev-VfR2kkLFssw@public.gmane.org" <dev-VfR2kkLFssw@public.gmane.org>
Return-path: <dev-bounces-VfR2kkLFssw@public.gmane.org>
In-Reply-To: <2601191342CEEE43887BDE71AB977258213AE563-kPTMFJFq+rEu0RiL9chJVbfspsVTdybXVpNB7YpNyf8@public.gmane.org>
List-Id: patches and discussions about DPDK <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev-VfR2kkLFssw@public.gmane.org>
List-Help: <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=subscribe>
Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org
Sender: "dev" <dev-bounces-VfR2kkLFssw@public.gmane.org>

Hi Konstantin,

On 11/17/2014 07:15 PM, Ananyev, Konstantin wrote:
> Just 2 nits from me:
>
> 1)
>> +static inline uint16_t
>> +rte_raw_cksum(const char *buf, size_t len)
>> +{
> ...
>> +	while (len >= 8) {
>> +		sum += u16[0]; sum += u16[1]; sum += u16[2]; sum += u16[3];
>
> Can you put each expression into a new line?
> sum += u16[0];
> sum += u16[1];
> ...
>
> To make it easier to read.
> Or can it be rewritten just like:
> sum = (uint32_t)u16[0] + u16[1] + u16[2] + u16[3];
> here?
>
> 2)
>> +	while (len >= 8) {
>> +		sum += u16[0]; sum += u16[1]; sum += u16[2]; sum += u16[3];
>> +		len -= 8;
>> +		u16 += 4;
>> +	}
>> +	while (len >= 2) {
>> +		sum += *u16;
>> +		len -= 2;
>> +		u16 += 1;
>> +	}
>
> In the code above, probably use sizeof(u16[0]) wherever appropriate.
> To make things a bit more clearer and consistent.
> ...
> while (len >=  4 * sizeof(u16[0]))
> len -= 4 * sizeof(u16[0]);
> u16 += 4;
> ...
> Same for second loop

OK, I push that in the todo list for the v3.

Thanks,
Olivier