From ec637fb2d4f7a7167c323dc1d22837d1270a21bc Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@redhat.com>
Date: Thu, 22 May 2014 17:07:49 -0600
Subject: [PATCH] PCI: Add function 0 DMA alias quirk for Ricoh devices

The existing quirk for these devices (pci_get_dma_source()) doesn't really
solve the problem; re-implement it using the DMA alias iterator.  We'll
come back later and remove the existing quirk and dma_source interface.
Note that device ID 0xe822 is typically function 0 and 0xe230 has been
tested to not need the quirk and are therefore removed versus the
equivalent dma_source quirk.  If there exist in other configurations we can
re-add them.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=605888
Tested-by: Pat Erley <pat-lkml@erley.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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