linux-kernel - Re: [RFC PATCH crypto 4/4] AES-NI: Add support to Intel AES-NI instructions for x86

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Message-ID: <20090113025341.GA14718@gondor.apana.org.au>
Date:	Tue, 13 Jan 2009 13:53:41 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Huang Ying <ying.huang@...el.com>
Cc:	Sebastian Siewior <linux-crypto@...breakpoint.cc>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>
Subject: Re: [RFC PATCH crypto 4/4] AES-NI: Add support to Intel AES-NI
	instructions for x86_64 platform

On Tue, Jan 13, 2009 at 10:49:07AM +0800, Huang Ying wrote:
>
> I can set req->data in xx_encrypt() to my original request to solve this
> issue. Except that, does this solution work?

Yes it would work provided that you save the original data somewhere
in your context (and then restore it of course).

But it'd be much simpler if you just nested the request structures
(they aren't that big too start with) which means that you wouldn't
need this extra completion handler at all.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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