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From: Rusty Russell <rusty@rustcorp.com.au>
To: Andrew Morton <akpm@zip.com.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.5.32-mm1 
In-reply-to: Your message of "Wed, 28 Aug 2002 09:47:19 MST."
             <3D6CFE97.DA554FA9@zip.com.au> 
Date: Thu, 29 Aug 2002 11:20:57 +1000
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In message <3D6CFE97.DA554FA9@zip.com.au> you write:
> Heinz Diehl wrote:
> > 
> > ...
> > fs/fs.o(.text+0x5932): undefined reference to cpu_possible'
> 
> Bah.  Sorry about that.  cpu_possible() appears to be undefined
> for uniprocessor builds.

Yes.

> +
> +#define cpu_possible(cpu)	((cpu) == 0)
> +

This is fine: techically it's:
	BUG_ON(cpu != 0);

Since you can never invoke cpu_possible(cpu) or cpu_online(cpu) for
cpu >= NR_CPUS.

Rusty.
--
  Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
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