linux-kernel - Re: [PATCH 6/8 v2] crypto: replace memset by memzero

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Date:	Mon, 01 Dec 2014 11:58:17 +1100
From:	Michael Ellerman <mpe@...erman.id.au>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	Herbert Xu <herbert@...dor.apana.org.au>,
	kernel-janitors@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	linux-crypto@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/8 v2] crypto: replace memset by memzero_explicit

On Sun, 2014-11-30 at 18:03 +0100, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@...6.fr>
> 
> Memset on a local variable may be removed when it is called just before the
> variable goes out of scope.  Using memzero_explicit defeats this
> optimization.  A simplified version of the semantic patch that makes this
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
> 
> ---
> Daniel Borkmann suggested that these patches could go through Herbert Xu's
> cryptodev tree.

That's fine by me:

Acked-by: Michael Ellerman <mpe@...erman.id.au>

cheers


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