linux-kernel - Re: [PATCH RFC v5 2/4] crypto: add PKE API

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Message-ID: <20150616023204.GA19147@gondor.apana.org.au>
Date:	Tue, 16 Jun 2015 10:32:04 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Tadeusz Struk <tadeusz.struk@...el.com>
Cc:	linux-kernel@...r.kernel.org, keescook@...omium.org,
	jwboyer@...hat.com, smueller@...onox.de, richard@....at,
	steved@...hat.com, qat-linux@...el.com, 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 RFC v5 2/4] crypto: add PKE API

On Mon, Jun 15, 2015 at 07:29:45PM -0700, Tadeusz Struk wrote:
>
> Actually I think it is useful. Without it the user will need to allocate
> a buffer, and invoke an operation only to find out that the buffer need to be
> bigger.

No the user could simply supply NULL/0 and get the requisite
information if they have no idea what the proper size is.

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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