From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: error in arp.c for Token Ring (IEEE802_TR) and ...
Date: Sun, 09 May 2010 18:45:08 -0700 (PDT)
Message-ID: <20100509.184508.257497526.davem@davemloft.net>
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From: Claus Regelmann <rgc@rgc1.inka.de>
Date: Mon, 10 May 2010 00:39:45 +0200

> 
> So the question is why CONFIG_TR is undefined allthought .config says:
> ...
> # CONFIG_NETDEV_1000 is not set
> # CONFIG_NETDEV_10000 is not set
> CONFIG_TR=m

Because when a configuration setting is set to "m" that makes
CONFIG_FOO_MODULE get defined instead of plain CONFIG_FOO.

So these places that test CONFIG_TR need to be changed to instead
test "defined(CONFIG_TR) || defined(CONFIG_TR_MODULE)"