From a44253d24a97ec3efe601267274a5fb64d8696c1 Mon Sep 17 00:00:00 2001
From: Mark Lord <liml@rtr.ca>
Date: Sat, 17 May 2008 13:37:07 -0400
Subject: [PATCH] sata_mv: disregard masked irqs

Part four of simplifying/fixing handling of the main_irq_mask register
to resolve unexpected interrupt issues observed in 2.6.26-rc*.

Ignore masked IRQs in mv_interrupt().
This prevents "unexpected device interrupt while idle" messages.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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