netdev - Re: checkentry function

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Date:	Tue, 5 Oct 2010 15:01:47 +0900
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Nicola Padovano <nicola.padovano@...il.com>
Cc:	netfilter-devel <netfilter-devel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: checkentry function

On Tue, 5 Oct 2010 07:52:39 +0200
Nicola Padovano <nicola.padovano@...il.com> wrote:

> > In current kernels, checkentry returns errno values.
> > 0 = okay
> > <0 is error (example -EINVAL).
> 0 = ok? and then you say 0 is error? which one?
> 

Negative (ie < 0) is used for error numbers. This is confusing
because in older kernels the checkentry returned a bool which
is defined as 1 okay and 0 for error. 
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