diff options
Diffstat (limited to 'kernel/irq/irqdesc.c')
| -rw-r--r-- | kernel/irq/irqdesc.c | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 2402934..d514ed6 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -455,31 +455,6 @@ EXPORT_SYMBOL_GPL(irq_free_hwirqs); #endif /** - * irq_reserve_irqs - mark irqs allocated - * @from: mark from irq number - * @cnt: number of irqs to mark - * - * Returns 0 on success or an appropriate error code - */ -int irq_reserve_irqs(unsigned int from, unsigned int cnt) -{ - unsigned int start; - int ret = 0; - - if (!cnt || (from + cnt) > nr_irqs) - return -EINVAL; - - mutex_lock(&sparse_irq_lock); - start = bitmap_find_next_zero_area(allocated_irqs, nr_irqs, from, cnt, 0); - if (start == from) - bitmap_set(allocated_irqs, start, cnt); - else - ret = -EEXIST; - mutex_unlock(&sparse_irq_lock); - return ret; -} - -/** * irq_get_next_irq - get next allocated irq number * @offset: where to start the search * |
