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Date: Mon, 15 Jun 2015 17:54:21 +0800
From: Herbert Xu <herbert@gondor.apana.org.au>
To: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: "David S. Miller" <davem@davemloft.net>, linux-crypto@vger.kernel.org,
        Arnaud Ebalard <arno@natisbad.org>, Tawfik Bayouk <tawfik@marvell.com>,
        Lior Amsalem <alior@marvell.com>, Nadav Haklai <nadavh@marvell.com>,
        Eran Ben-Avi <benavi@marvell.com>,
        Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
        Gregory CLEMENT <gregory.clement@free-electrons.com>,
        Jason Cooper <jason@lakedaemon.net>,
        Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
        Andrew Lunn <andrew@lunn.ch>, Rob Herring <robh+dt@kernel.org>,
        Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Jason Gunthorpe <jgunthorpe@obsidianresearch.com>,
        Imre Kaloz <kaloz@openwrt.org>
Subject: Re: [RESEND PATCH v4 04/14] crypto: add a new driver for Marvell's
 CESA
Message-ID: <20150615095421.GA32158@gondor.apana.org.au>
References: <1434093366-14681-1-git-send-email-boris.brezillon@free-electrons.com>
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On Fri, Jun 12, 2015 at 09:15:56AM +0200, Boris Brezillon wrote:
>
> +static int mv_cesa_cbc_aes_op(struct ablkcipher_request *req,
> +			      struct mv_cesa_op_ctx *tmpl)
> +{
> +	mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_CRYPTCM_CBC,
> +			      CESA_SA_DESC_CFG_CRYPTCM_MSK);
> +	memcpy(tmpl->ctx.blkcipher.iv, req->info, 16);

You need to copy the IV back into req->info after completion.

Incidentally we don't seem to test for output IVs in our self-
test so bugs like this can slip through until someone tries to
do chaining with it.  That's something worth adding to testmgr.

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