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powerpc: Add virq_is_host to reduce virq_to_host usage

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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>
This commit is contained in:
Milton Miller
2011-05-10 19:30:36 +00:00
committed by Benjamin Herrenschmidt
parent 9553361499
commit 3ee62d365b
3 changed files with 8 additions and 1 deletions
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6
arch/powerpc/kernel/irq.c
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@@ -510,6 +510,12 @@ irq_hw_number_t virq_to_hw(unsigned int virq)
}
EXPORT_SYMBOL_GPL(virq_to_hw);
bool virq_is_host(unsigned int virq, struct irq_host *host)
{
return irq_map[virq].host == host;
}
EXPORT_SYMBOL_GPL(virq_is_host);
struct irq_host *virq_to_host(unsigned int virq)
{
return irq_map[virq].host;