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Date: Thu, 2 Apr 2015 14:09:30 +0200
From: "Michael S. Tsirkin" <mst@redhat.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Jean Delvare <jdelvare@suse.de>, linux-kernel@vger.kernel.org,
        linux-pci@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
        Greg Kroah-Hartman <gregkh@suse.de>, Dave Jones <davej@redhat.com>,
        Jesse Barnes <jbarnes@virtuousgeek.org>
Subject: Re: [PATCH 00/86] pci: export pci_ids.h and related cleanups
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On Thu, Apr 02, 2015 at 01:23:06AM -0700, Christoph Hellwig wrote:
> The class ids are a hardware defintion, not a kernel API.

It's part of the API, it's used to decode values in this sysfs file:
/sys/bus/pci/devices/<address>/class
VFIO also made this part of it's kernel API.

> Just use the
> definitions from libpci, or copy over the kernel header if you prefer
> it over the libpci definutions.