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genirq: export handle_edge_irq() and irq_to_desc()

Export handle_edge_irq() and irq_to_desc() to modules to allow them to
do things such as

	__irq_set_handler_locked(...., handle_edge_irq);

This fixes

	ERROR: "handle_edge_irq" [drivers/gpio/gpio-pch.ko] undefined!
	ERROR: "irq_to_desc" [drivers/gpio/gpio-pch.ko] undefined!

when gpio-pch is being built as a module.

This was introduced by commit df9541a ("gpio: pch9: Use proper flow
type handlers") that added

	__irq_set_handler_locked(d->irq, handle_edge_irq);

but handle_edge_irq() was not exported for modules (and inlined
__irq_set_handler_locked() requires irq_to_desc() exported as well)

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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1 parent b6255ee commit 3911ff30f5d1175e2e67e73244405e3492b35c79 Jiri Kosina committed with May 13, 2012
Showing with 2 additions and 0 deletions.
  1. +1 −0 kernel/irq/chip.c
  2. +1 −0 kernel/irq/irqdesc.c
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@@ -518,6 +518,7 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
out_unlock:
raw_spin_unlock(&desc->lock);
}
+EXPORT_SYMBOL(handle_edge_irq);
#ifdef CONFIG_IRQ_EDGE_EOI_HANDLER
/**
@@ -112,6 +112,7 @@ struct irq_desc *irq_to_desc(unsigned int irq)
{
return radix_tree_lookup(&irq_desc_tree, irq);
}
+EXPORT_SYMBOL(irq_to_desc);
static void delete_irq_desc(unsigned int irq)
{

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