diff options
| -rw-r--r-- | include/linux/irq.h | 7 | ||||
| -rw-r--r-- | kernel/irq/irqdesc.c | 25 |
2 files changed, 0 insertions, 32 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index ac9634286f42..2110f46fcafa 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -617,18 +617,11 @@ int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node, irq_alloc_descs(-1, from, cnt, node) void irq_free_descs(unsigned int irq, unsigned int cnt); -int irq_reserve_irqs(unsigned int from, unsigned int cnt); - static inline void irq_free_desc(unsigned int irq) { irq_free_descs(irq, 1); } -static inline int irq_reserve_irq(unsigned int irq) -{ - return irq_reserve_irqs(irq, 1); -} - #ifdef CONFIG_GENERIC_IRQ_LEGACY_ALLOC_HWIRQ unsigned int irq_alloc_hwirqs(int cnt, int node); static inline unsigned int irq_alloc_hwirq(int node) diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 24029348729b..d514ed6080e1 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 * |