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

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Date:	Sat, 23 May 2015 14:18:06 +0200
From:	Corentin LABBE <clabbe.montjoie@...il.com>
To:	herbert@...dor.apana.org.au
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: [linux-sunxi] Re: [PATCH v9 4/4] crypto: Add Allwinner Security
 System crypto accelerator

Le 15/05/2015 08:49, Herbert Xu a écrit :
> 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,
> 
Fixed

What do you think about adding a BUG_ON(in_atomic()) in crypto_ablkcipher_setkey() ?

Thanks

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