linux-kernel - Re: [PATCH v11 1/2] crypto: AF

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Message-ID: <20150126000631.GA18350@gondor.apana.org.au>
Date:	Mon, 26 Jan 2015 11:06:31 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Stephan Mueller <smueller@...onox.de>
Cc:	Daniel Borkmann <dborkman@...hat.com>,
	'Quentin Gouchet' <quentin.gouchet@...il.com>,
	'LKML' <linux-kernel@...r.kernel.org>,
	linux-crypto@...r.kernel.org, linux-api@...r.kernel.org,
	Neil Horman <nhorman@...driver.com>
Subject: Re: [PATCH v11 1/2] crypto: AF_ALG: add AEAD support

On Wed, Jan 21, 2015 at 02:19:17AM +0100, Stephan Mueller wrote:
>
> +	/*
> +	 * Require exactly one IOV block as the AEAD operation is a one shot
> +	 * due to the authentication tag.
> +	 */
> +	if (msg->msg_iter.nr_segs != 1)
> +		return -ENOMSG;

Why does limit exist? The fact that you have to do it in one go does
not limit the number of receive IOVs, at least not to one.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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