linux-kernel - Re: [PATCH v4 3/3] crypto: Add Allwinner Security System crypto accelerator

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Message-ID: <20140727145254.GA2932@gondor.apana.org.au>
Date:	Sun, 27 Jul 2014 22:52:54 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Corentin LABBE <clabbe.montjoie@...il.com>
Cc:	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	rdunlap@...radead.org, maxime.ripard@...e-electrons.com,
	linux@....linux.org.uk, davem@...emloft.net,
	grant.likely@...aro.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-crypto@...r.kernel.org
Subject: Re: [PATCH v4 3/3] crypto: Add Allwinner Security System crypto
 accelerator

On Sat, Jul 26, 2014 at 04:01:26PM +0200, Corentin LABBE wrote:
>
> Even if it is undocumented, the hardware seems to support it.
> Since crypto_ahash_ctx is for a tfm, does ahash_request_ctx is the good place to store data ?
> (after a call to crypto_ahash_set_reqsize in cra_init)

Yes any hash state-related data should go into the request context.

> I have also seen export/import function, does I need to use it ?

Absolutely.

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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