From c2996948ac36a9082f27b9ad94dac4c821a9c33d Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 22 Aug 2013 11:24:46 +0800
Subject: [PATCH] PCI: Simplify MPS test for Downstream Port

PCIe hotplug bridges are always either Root Ports or Downstream Ports.  No
other device type can have a PCIe link leading downstream to a slot.

Root Ports don't have an upstream bridge, so "dev->is_hotplug_bridge &&
dev->bus->self" is true if and only if "dev" is a Downstream Port.  That
means we can simplify this by looking at the type of "dev" itself, without
looking upstream at all.

No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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