linux-kernel - Re: [patch 6/6] x86: cpumask_of_node() should handle -1 as a node

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Message-Id: <201001061706.26845.rusty@rustcorp.com.au>
Date:	Wed, 6 Jan 2010 17:06:26 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Anton Blanchard <anton@...ba.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 6/6] x86: cpumask_of_node() should handle -1 as a node

On Wed, 6 Jan 2010 03:25:15 pm Anton Blanchard wrote:
> pcibus_to_node can return -1 if we cannot determine which node a pci bus
> is on. If passed -1, cpumask_of_node will negatively index the lookup array
> and pull in random data:

If you grep for the callers, you'll see those which do this (now-obsolete)
check.  One more patch :)

Thanks,
Rusty.
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