From: Gavin Shan <gwshan@linux.vnet.ibm.com>
Date: Fri, 30 May 2014 17:35:54 +0000 (-0600)
Subject: drivers/vfio/pci: Fix wrong MSI interrupt count
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~91^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fd49c81f080a997aad4b0e73541cd42772b6a772;p=pandora-kernel.git

drivers/vfio/pci: Fix wrong MSI interrupt count

According PCI local bus specification, the register of Message
Control for MSI (offset: 2, length: 2) has bit#0 to enable or
disable MSI logic and it shouldn't be part contributing to the
calculation of MSI interrupt count. The patch fixes the issue.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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