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Subject[patch 28/32] genirq: Replace reserve_irqs in core code
We want to get rid of the public interface.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
kernel/irq/chip.c | 5 ++---
kernel/irq/internals.h | 6 ++++++
kernel/irq/irqdesc.c | 7 +++++++
3 files changed, 15 insertions(+), 3 deletions(-)

Index: tip/kernel/irq/chip.c
===================================================================
--- tip.orig/kernel/irq/chip.c
+++ tip/kernel/irq/chip.c
@@ -40,10 +40,9 @@ int irq_set_chip(unsigned int irq, struc
irq_put_desc_unlock(desc, flags);
/*
* For !CONFIG_SPARSE_IRQ make the irq show up in
- * allocated_irqs. For the CONFIG_SPARSE_IRQ case, it is
- * already marked, and this call is harmless.
+ * allocated_irqs.
*/
- irq_reserve_irq(irq);
+ irq_mark_irq(irq);
return 0;
}
EXPORT_SYMBOL(irq_set_chip);
Index: tip/kernel/irq/internals.h
===================================================================
--- tip.orig/kernel/irq/internals.h
+++ tip/kernel/irq/internals.h
@@ -76,6 +76,12 @@ extern void mask_irq(struct irq_desc *de
extern void unmask_irq(struct irq_desc *desc);
extern void unmask_threaded_irq(struct irq_desc *desc);

+#ifdef CONFIG_SPARSE_IRQ
+static inline void irq_mark_irq(unsigned int irq) { }
+#else
+extern void irq_mark_irq(unsigned int irq);
+#endif
+
extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);

irqreturn_t handle_irq_event_percpu(struct irq_desc *desc, struct irqaction *action);
Index: tip/kernel/irq/irqdesc.c
===================================================================
--- tip.orig/kernel/irq/irqdesc.c
+++ tip/kernel/irq/irqdesc.c
@@ -299,6 +299,13 @@ static int irq_expand_nr_irqs(unsigned i
return -ENOMEM;
}

+void irq_mark_irq(unsigned int irq)
+{
+ mutex_lock(&sparse_irq_lock);
+ bitmap_set(allocated_irqs, irq, 1);
+ mutex_unlock(&sparse_irq_lock);
+}
+
#endif /* !CONFIG_SPARSE_IRQ */

/**



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