genirq: Remove the now unused sparse irq leftovers
The move_irq_desc() function was only used due to the problem that the
allocator did not free the old descriptors. So the descriptors had to
be moved in create_irq_nr(). That's history.
The code would have never been able to move active interrupt
descriptors on affinity settings. That can be done in a completely
different way w/o all this horror.
Remove all of it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index c9d5a1c..4f0b9c9 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -20,7 +20,7 @@
/*
* lockdep: we want to handle all irq_desc locks as a single lock-class:
*/
-struct lock_class_key irq_desc_lock_class;
+static struct lock_class_key irq_desc_lock_class;
#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS)
static void __init init_irq_default_affinity(void)
@@ -90,28 +90,11 @@
int nr_irqs = NR_IRQS;
EXPORT_SYMBOL_GPL(nr_irqs);
-DEFINE_RAW_SPINLOCK(sparse_irq_lock);
+static DEFINE_RAW_SPINLOCK(sparse_irq_lock);
static DECLARE_BITMAP(allocated_irqs, NR_IRQS);
#ifdef CONFIG_SPARSE_IRQ
-void __ref init_kstat_irqs(struct irq_desc *desc, int node, int nr)
-{
- void *ptr;
-
- ptr = kzalloc_node(nr * sizeof(*desc->kstat_irqs),
- GFP_ATOMIC, node);
-
- /*
- * don't overwite if can not get new one
- * init_copy_kstat_irqs() could still use old one
- */
- if (ptr) {
- printk(KERN_DEBUG " alloc kstat_irqs on node %d\n", node);
- desc->kstat_irqs = ptr;
- }
-}
-
static RADIX_TREE(irq_desc_tree, GFP_ATOMIC);
static void irq_insert_desc(unsigned int irq, struct irq_desc *desc)
@@ -124,15 +107,6 @@
return radix_tree_lookup(&irq_desc_tree, irq);
}
-void replace_irq_desc(unsigned int irq, struct irq_desc *desc)
-{
- void **ptr;
-
- ptr = radix_tree_lookup_slot(&irq_desc_tree, irq);
- if (ptr)
- radix_tree_replace_slot(ptr, desc);
-}
-
static void delete_irq_desc(unsigned int irq)
{
radix_tree_delete(&irq_desc_tree, irq);
