From f303e50766298feac17c8715e29ecd14b2c12680 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Thu, 23 Jul 2015 18:37:13 +0200
Subject: [PATCH] iommu/vt-d: Avoid duplicate device_domain_info structures

When a 'struct device_domain_info' is created as an alias
for another device, this struct will not be re-used when the
real device is encountered. Fix that to avoid duplicate
device_domain_info structures being added.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Reading git-format-patch failed