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[POWERPC] Compare irq numbers with NO_IRQ not IRQ_NONE 

There is a thinko in the irq code, it uses IRQ_NONE to indicate no irq,
whereas it should be using NO_IRQ.  IRQ_NONE is returned from irq
handlers to say "not handled".

As it happens they currently have the same value (0), so this is just for
future proof-ness.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Michael Ellerman 2007-06-01 17:23:26 +10:00 committed by Paul Mackerras
parent a4c28ab744
commit f5921697cf
1 changed files with 3 additions and 3 deletions
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6
arch/powerpc/kernel/irq.c
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@ -489,7 +489,7 @@ struct irq_host *irq_alloc_host(unsigned int revmap_type,
case IRQ_HOST_MAP_LINEAR:
rmap = (unsigned int *)(host + 1);
for (i = 0; i < revmap_arg; i++)
rmap[i] = IRQ_NONE;
rmap[i] = NO_IRQ;
host->revmap_data.linear.size = revmap_arg;
smp_wmb();
host->revmap_data.linear.revmap = rmap;
@ -614,7 +614,7 @@ unsigned int irq_create_mapping(struct irq_host *host,
* host->ops->map() to update the flags
*/
virq = irq_find_mapping(host, hwirq);
if (virq != IRQ_NONE) {
if (virq != NO_IRQ) {
if (host->ops->remap)
host->ops->remap(host, virq, hwirq);
pr_debug("irq: -> existing mapping on virq %d\n", virq);
@ -741,7 +741,7 @@ void irq_dispose_mapping(unsigned int virq)
switch(host->revmap_type) {
case IRQ_HOST_MAP_LINEAR:
if (hwirq < host->revmap_data.linear.size)
host->revmap_data.linear.revmap[hwirq] = IRQ_NONE;
host->revmap_data.linear.revmap[hwirq] = NO_IRQ;
break;
case IRQ_HOST_MAP_TREE:
/* Check if radix tree allocated yet */