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Commit e5c14ce1 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Paul Mackerras
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[POWERPC] Fix irq radix tree remapping typo 



The code for using the radix tree for reverse mapping of interrupts has
a typo that causes it to create incorrect mappings if the software and
hardware numbers happen to be different. This would, among others, cause
the IDE interrupt to fail on js20's. This fixes it.

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 83db3dde

arch/powerpc/kernel/irq.c

+1 −1
Original line number Diff line number Diff line
@@ -693,7 +693,7 @@ unsigned int irq_radix_revmap(struct irq_host *host, 
	/* If not there, try to insert it */

	virq = irq_find_mapping(host, hwirq);

	if (virq != NO_IRQ)

		radix_tree_insert(tree, virq, &irq_map[virq]);

		radix_tree_insert(tree, hwirq, &irq_map[virq]);

 bail:

	spin_unlock_irqrestore(&irq_big_lock, flags);

	return virq;