diff options
| -rw-r--r-- | include/linux/irqnr.h | 2 | ||||
| -rw-r--r-- | kernel/irq/irqdesc.c | 23 |
2 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h index 3496baa0b07f..7419b807b71b 100644 --- a/include/linux/irqnr.h +++ b/include/linux/irqnr.h @@ -6,6 +6,8 @@ extern int nr_irqs; +unsigned int irq_get_nr_irqs(void) __pure; +unsigned int irq_set_nr_irqs(unsigned int nr); extern struct irq_desc *irq_to_desc(unsigned int irq); unsigned int irq_get_next_irq(unsigned int offset); diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 1dee88ba0ae4..b0733959f8ae 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -141,6 +141,29 @@ static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node, int nr_irqs = NR_IRQS; EXPORT_SYMBOL_GPL(nr_irqs); +/** + * irq_get_nr_irqs() - Number of interrupts supported by the system. + */ +unsigned int irq_get_nr_irqs(void) +{ + return nr_irqs; +} +EXPORT_SYMBOL_GPL(irq_get_nr_irqs); + +/** + * irq_set_nr_irqs() - Set the number of interrupts supported by the system. + * @nr: New number of interrupts. + * + * Return: @nr. + */ +unsigned int irq_set_nr_irqs(unsigned int nr) +{ + nr_irqs = nr; + + return nr; +} +EXPORT_SYMBOL_GPL(irq_set_nr_irqs); + static DEFINE_MUTEX(sparse_irq_lock); static struct maple_tree sparse_irqs = MTREE_INIT_EXT(sparse_irqs, MT_FLAGS_ALLOC_RANGE | |