From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <shemminger@vyatta.com>
Subject: Re: [PATCH] IPv6 - support for NLM_F_* flags at IPv6 routing
 requests
Date: Tue, 1 Nov 2011 22:43:02 +0100
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Cc: davem@davemloft.net, netdev@vger.kernel.org
To: Matti Vaittinen <matti.vaittinen@nsn.com>
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On Tue, 01 Nov 2011 16:22:27 +0200
Matti Vaittinen <matti.vaittinen@nsn.com> wrote:

>  
> +#define RT6_CANT_CREATE ((int)-1)
>  #define RT6_DEBUG 2

Rather than introduce a new error flag, why not convert the code
to use the kernel standard PTR_ERR() macros?