powerpc: Add virq_is_host to reduce virq_to_host usage
Some irq_host implementations are using virq_to_host to check if they are the irq_host for a virtual irq. To allow us to make space versus time tradeoffs, replace this usage with an assertive virq_is_host that confirms or denies the irq is associated with the given irq_host. Signed-off-by:Milton Miller <miltonm@bga.com> Acked-by:
Grant Likely <grant.likely@secretlab.ca> Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org>
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