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Message-ID: <1450204599.3057.40.camel@schen9-desk2.jf.intel.com>
Subject: Re: [PATCH v4 5/5] crypto: AES CBC multi-buffer glue code
From: Tim Chen <tim.c.chen@linux.intel.com>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "H. Peter Anvin" <hpa@zytor.com>, "David S.Miller" <davem@davemloft.net>,
        Stephan Mueller <smueller@chronox.de>,
        Chandramouli Narayanan <mouli_7982@yahoo.com>,
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        James Guilford <james.guilford@intel.com>,
        Wajdi Feghali <wajdi.k.feghali@intel.com>,
        Jussi Kivilinna <jussi.kivilinna@iki.fi>, linux-crypto@vger.kernel.org,
        linux-kernel@vger.kernel.org
Date: Tue, 15 Dec 2015 10:36:39 -0800
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On Sat, 2015-12-12 at 13:48 +0800, Herbert Xu wrote:
> On Fri, Dec 11, 2015 at 08:54:40AM -0800, Tim Chen wrote:
> > Direct call I assume have less overhead.  Let me think about
> 
> static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req)
> {
> 	struct ablkcipher_tfm *crt =
> 		crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
> 	return crt->encrypt(req);
> }
> 
> I don't see any overhead there that you could eliminate by calling
> crt->encrypt directly.
> 
> Cheers,

Okay, I'll attempt to convert the inner cipher to ablk.  It may
take me a bit of time.

Thanks.

Tim