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由 Michael S. Tsirkin 提交于
This rearranges code in preparation for interrupt state implementation. Changes: - split up bus walk away from interrupt handling into a subroutine - change irq_state from an array to bitmask - verify that irq_state values are 0 or 1 on load There are no functional changes. Signed-off-by: NMichael S. Tsirkin <mst@redhat.com> Acked-by: NIsaku Yamahata <yamahata@valinux.co.jp>
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