linux-kernel - Re: [PATCH 2/2] crypto: qat - Don't move data inside output buffer

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Message-ID: <20150814062636.GA2799@gondor.apana.org.au>
Date:	Fri, 14 Aug 2015 14:26:36 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Tadeusz Struk <tadeusz.struk@...el.com>
Cc:	keescook@...omium.org, jwboyer@...hat.com, smueller@...onox.de,
	richard@....at, steved@...hat.com, linux-kernel@...r.kernel.org,
	dhowells@...hat.com, linux-crypto@...r.kernel.org,
	james.l.morris@...cle.com, jkosina@...e.cz,
	zohar@...ux.vnet.ibm.com, davem@...emloft.net, vgoyal@...hat.com
Subject: Re: [PATCH 2/2] crypto: qat - Don't move data inside output buffer

On Thu, Aug 13, 2015 at 11:14:11PM -0700, Tadeusz Struk wrote:
> 
> Right, but we don't need that anymore.

Why not? If you reduce the size without moving the buffer wouldn't
it begin with a bunch of zeroes and wouldn't you lose the real bytes
at the end?

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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