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genirq: Provide irq_get_effective_affinity()

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Provide an accessor to the effective interrupt affinity mask. Going to be
used to replace open coded fiddling with the irq descriptor.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201210194042.967177918@linutronix.de
This commit is contained in:
Thomas Gleixner
2020-12-10 20:25:40 +01:00
parent f1c6306c0d
commit 3e2380123f
1 changed files with 7 additions and 0 deletions
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7
include/linux/irq.h
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@@ -906,6 +906,13 @@ struct cpumask *irq_data_get_effective_affinity_mask(struct irq_data *d)
}
#endif
static inline struct cpumask *irq_get_effective_affinity_mask(unsigned int irq)
{
struct irq_data *d = irq_get_irq_data(irq);
return d ? irq_data_get_effective_affinity_mask(d) : NULL;
}
unsigned int arch_dynirq_lower_bound(unsigned int from);
int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node,