From: Yijing Wang <wangyijing@huawei.com>
Date: Tue, 8 Jul 2014 02:08:55 +0000 (+0800)
Subject: PCI/MSI: Retrieve first MSI IRQ from msi_desc rather than pci_dev
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~196^2^6~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a281b788d6070526c63b7bbc43dcbe5906d3f487;p=pandora-kernel.git

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>
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