linux-kernel - Re: [PATCH v4 5/5] crypto: AES CBC multi-buffer glue code

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Date:	Sat, 12 Dec 2015 13:48:06 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Tim Chen <tim.c.chen@...ux.intel.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	"David S.Miller" <davem@...emloft.net>,
	Stephan Mueller <smueller@...onox.de>,
	Chandramouli Narayanan <mouli_7982@...oo.com>,
	Vinodh Gopal <vinodh.gopal@...el.com>,
	James Guilford <james.guilford@...el.com>,
	Wajdi Feghali <wajdi.k.feghali@...el.com>,
	Jussi Kivilinna <jussi.kivilinna@....fi>,
	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 5/5] crypto: AES CBC multi-buffer glue code

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,
-- 
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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