linux-kernel - Re: [PATCH 1/3] Restrict definition of a variable in kernel/sysctl.c

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Date:	Thu, 19 Mar 2009 08:25:10 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Dmitri Vorobiev <dmitri.vorobiev@...ial.com>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] Restrict definition of a variable in
	kernel/sysctl.c


* Dmitri Vorobiev <dmitri.vorobiev@...ial.com> wrote:

> The variable "one" in kernel/sysctl.c is used only if either CONFIG_HIGHMEM,
> or CONFIG_DETECT_SOFTLOCKUP are defined (or both). Hence, if neither option
> is enabled, the following error is produced:
> 
>   CC      kernel/sysctl.o
> kernel/sysctl.c:99: warning: 'one' defined but not used
> 
> This patch fixes the warning by moving the variable definition under an
> appropriate preprocessor construct.
> 
> Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@...ial.com>
> ---
>  kernel/sysctl.c |    5 ++++-
>  1 files changed, 4 insertions(+), 1 deletions(-)

Note, this warning is already fixed in the tip:core/softlockup tree 
and queued up for v2.6.30.

	Ingo
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