Re: [PATCH] PCI/ASPM: Fix a NULL pointer crash on sparc64

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From: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Date: Thu, 20 Aug 2015 00:48:00 -0500

> [+cc Dave, Eric, Ben, sparclinux]

I think the comment is terrible.

It is not limited to those two systems, it is a general problem with
how the code assumes the root PCI-E port is instantiated in the PCI
bus hierarchy which will not be true on any system which has a PCI
controller that doesn't actually provide a bonafide config space to
access.

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