linux-kernel - Re: [BUGFIX -v2 for .32] crypto, gcm, fix another complete call in complete fuction

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Date:	Mon, 9 Nov 2009 22:10:22 -0500
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Huang Ying <ying.huang@...el.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>
Subject: Re: [BUGFIX -v2 for .32] crypto, gcm, fix another complete call in
	complete fuction

On Tue, Nov 10, 2009 at 10:49:59AM +0800, Huang Ying wrote:
>
> Yes. This is for performance only. Because crypto_gcm_reqctx(req) is not
> so trivial (it needs access tfm), and used by every xxx_done function,
> so I think it is better to just call crypto_gcm_reqctx once and pass it
> down. Do you think so?

Since we only support blocksize == 16, that means the alignment
cannot exceed 16 bytes.  So just always align to 16 bytes and that
should make crypto_gcm_reqctx trivial once optimised by the
compiler.

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