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Message-ID: <alpine.LFD.2.01.0908021018420.3352@localhost.localdomain>
Date: Sun, 2 Aug 2009 10:19:42 -0700 (PDT)
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Matthew Wilcox <matthew@....cx>
cc: "Rafael J. Wysocki" <rjw@...k.pl>,
Matthew Wilcox <willy@...ux.intel.com>,
LKML <linux-kernel@...r.kernel.org>,
Linux PCI <linux-pci@...r.kernel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Andrew Patterson <andrew.patterson@...com>
Subject: Re: [Regression] PCI resources allocation problem on HP nx6325
On Sun, 2 Aug 2009, Matthew Wilcox wrote:
>
> It *might* break HP's ia64 machines. I have this feeling that the serial
> ports may be claimed in the resource tree before the PCI resources are
> claimed (and then they need to nest under a PCI bus).
>
> How about this variant which will insert_resource for _bus_ resources,
> but request_resource for _device_ resources?
Ugh. Please no. Hackery like this will just lead to unmaintainable crud in
the long run. Can you just fix ia64 instead? The firmware resources should
be added _after_ the PCI resource tree has been walked, not before.
Linus
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