From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bill Nottingham <notting@redhat.com>
Date: Tue, 26 Jun 2001 17:04:25 +0000
Subject: [Linux-ia64] Re: volatile unsigned long cpu_online_map vs unsigned long cpu_online_map
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Andreas Schwab (schwab@suse.de) said: 
> |> Also, shoudn't it be extern in at least one of setup.c/smpboot.c?
> 
> No.  The definition in setup.c is guarded by CONFIG_SMP, and smpboot.c is
> not use on non-SMP.

But then on a SMP kernel you have two definitions of the same
symbol, yes?

Bill