From a281b788d6070526c63b7bbc43dcbe5906d3f487 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Tue, 8 Jul 2014 10:08:55 +0800
Subject: [PATCH] PCI/MSI: Retrieve first MSI IRQ from msi_desc rather than
 pci_dev

Retrieve the first MSI IRQ to compute the MSI index from struct msi_desc
rather than the struct pci_dev to avoid an additional memory access.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
Reading git-format-patch failed