linux-kernel - Re: [PATCH -v3 2/3] crypto: Add fpu template, a wrapper for blkcipher touching FPU

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Message-ID: <20090329074204.GA11735@gondor.apana.org.au>
Date:	Sun, 29 Mar 2009 15:42:04 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Huang Ying <ying.huang@...el.com>
Cc:	Sebastian Andrzej Siewior <linux-crypto@...breakpoint.cc>,
	linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org
Subject: Re: [PATCH -v3 2/3] crypto: Add fpu template, a wrapper for
	blkcipher touching FPU

On Wed, Mar 18, 2009 at 11:21:57AM +0800, Huang Ying wrote:
> Blkcipher touching FPU need to be enclosed by kernel_fpu_begin() and
> kernel_fpu_end(). If they are invoked in cipher algorithm
> implementation, they will be invoked for each block, so that
> performance will be hurt, because they are "slow" operations. This
> patch implements "fpu" template, which makes these operations to be
> invoked for each request.
> 
> v2: Make FPU mode invisible to end user
> 
> Signed-off-by: Huang Ying <ying.huang@...el.com>

I've applied all the three patches with no changes except moving
fpu.c into arch/x86/crypto.

Thanks,
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