From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date: Fri, 18 Sep 2009 23:31:22 +0000 (-0700)
Subject: xen/evtchn: track enabled state for each port
X-Git-Tag: v2.6.37-rc4~60^2^3~1^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e3cc067b0a79d3a3672bfe7cfba12f2e8ae56039;p=pandora-kernel.git

xen/evtchn: track enabled state for each port

enable/disable_irq() complain if the enables/disables are unbalanced,
so keep track of the state and avoid redundant enables.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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