linux-kernel - Re: [PATCH v9 4/4] crypto: Add Allwinner Security System crypto accelerator

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Message-ID: <20150515064932.GB16704@gondor.apana.org.au>
Date:	Fri, 15 May 2015 14:49:33 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	LABBE Corentin <clabbe.montjoie@...il.com>
Cc:	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	maxime.ripard@...e-electrons.com, linux@....linux.org.uk,
	davem@...emloft.net, akpm@...ux-foundation.org,
	gregkh@...uxfoundation.org, mchehab@....samsung.com,
	joe@...ches.com, tj@...nel.org, arnd@...db.de,
	boris.brezillon@...e-electrons.com, devicetree@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
	linux-sunxi@...glegroups.com
Subject: Re: [PATCH v9 4/4] crypto: Add Allwinner Security System crypto
 accelerator

On Thu, May 14, 2015 at 02:59:01PM +0200, LABBE Corentin wrote:
>
> +	err = crypto_ablkcipher_setkey(op->fallback, kkey, op->keylen);
> +	if (err != 0) {
> +		dev_err(ss->dev, "Cannot set key on fallback\n");
> +		return -EINVAL;
> +	}

You cannot call setkey from an atomic context.  The easiest solution
is to call setkey in your setkey function instead.

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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