Re: [PATCH] net: core: fix unused variable sparse warning

[David Miller]

From: Cong Ding <dinggnu@xxxxxxxxx>
Date: Fri, 7 Dec 2012 00:15:47 +0000

> On Fri, Dec 07, 2012 at 12:06:44AM +0000, Cong Ding wrote:
>> the variables zero and unres_qlen_max are only used when CONFIG_SYSCTL is
>> defined, otherwise it causes the following sparse warning when we turn on
>> CONFIG_SYSCTL.
> sorry for disturbing again, the sparse warning is
> net/core/neighbour.c:65:12: warning: ʽzeroʼ defined but not used [-Wunused-variable]
> net/core/neighbour.c:66:12: warning: ʽunres_qlen_maxʼ defined but not used [-Wunused-variable]
> 
> it happens if we turn off CONFIG_SYSCTL.

A patch for this has already in my tree for nearly a whole day.
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