linux-kernel - Re: [PATCH] crypto: ccm - avoid scatterlist for MAC encryption

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Message-ID: <5807984D.4050307@candelatech.com>
Date:   Wed, 19 Oct 2016 08:59:09 -0700
From:   Ben Greear <greearb@...delatech.com>
To:     Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Johannes Berg <johannes@...solutions.net>
CC:     Herbert Xu <herbert@...dor.apana.org.au>,
        Andy Lutomirski <luto@...capital.net>,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        "<netdev@...r.kernel.org>" <netdev@...r.kernel.org>,
        "David S. Miller" <davem@...emloft.net>,
        "<linux-wireless@...r.kernel.org>" <linux-wireless@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jouni Malinen <j@...fi>
Subject: Re: [PATCH] crypto: ccm - avoid scatterlist for MAC encryption



On 10/19/2016 08:08 AM, Ard Biesheuvel wrote:
> On 19 October 2016 at 08:43, Johannes Berg <johannes@...solutions.net> wrote:
>> On Wed, 2016-10-19 at 11:31 +0800, Herbert Xu wrote:

>> We could probably make mac80211 do that too, but can we guarantee in-
>> order processing? Anyway, it's pretty low priority, maybe never
>> happening, since hardly anyone really uses "software" crypto, the wifi
>> devices mostly have it built in anyway.
>>
>
> Indeed. The code is now correct in terms of API requirements, so let's
> just wait for someone to complain about any performance regressions.

Do you actually expect performance regressions?  I'll be complaining if
so, but will test first :)

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com