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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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1
arch/powerpc/include/asm/irq.h
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@ -128,6 +128,7 @@ struct irq_host {
struct irq_data;
extern irq_hw_number_t irqd_to_hwirq(struct irq_data *d);
extern irq_hw_number_t virq_to_hw(unsigned int virq);
extern bool virq_is_host(unsigned int virq, struct irq_host *host);
extern struct irq_host *virq_to_host(unsigned int virq);
/**