linux-kernel - Re: [PATCH 3/3] trusted-keys: avoid scattring va

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Message-ID: <3630.1295257175@redhat.com>
Date:	Mon, 17 Jan 2011 09:39:35 +0000
From:	David Howells <dhowells@...hat.com>
To:	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Cc:	dhowells@...hat.com, safford@...son.ibm.com, safford@...ibm.com,
	jj@...osbits.net, jmorris@...ei.org, keyrings@...ux-nfs.org,
	linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] trusted-keys: avoid scattring va_end()

Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp> wrote:

> From 65b41710a476deae2e0899a4df40c02d199a4ee3 Mon Sep 17 00:00:00 2001
> From: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
> Date: Mon, 17 Jan 2011 09:27:27 +0900
> Subject: [PATCH 3/3] trusted-keys: avoid scattring va_end()
> 
> We can avoid scattering va_end() within the
> 
>   va_start();
>   for (;;) {
> 
>   }
>   va_end();
> 
> loop, assuming that crypto_shash_init()/crypto_shash_update() return 0 on
> success and negative value otherwise.
> 
> Make TSS_authhmac()/TSS_checkhmac1()/TSS_checkhmac2() similar to TSS_rawhmac()
> by removing "va_end()/goto" from the loop.
> 
> Signed-off-by: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>

Acked-by: David Howells <dhowells@...hat.com>
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