From bffac3c593eba1f9da3efd0199e49ea6558a40ce Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <willy@wil.cx>
Date: Wed, 21 Jan 2009 19:19:19 -0500
Subject: [PATCH] PCI MSI: Fix undefined shift by 32

Add an msi_mask() function which returns the correct bitmask for the
number of MSI interrupts you have.  This fixes an undefined bug in
msi_capability_init().

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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