tree 645b3eed7f7a4e426a731a5cc4f906834d0e6189
parent 74fca6a42863ffacaf7ba6f1936a9f228950f657
author Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 1253316682 -0700
committer Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 1253319194 -0700

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>