powerpc/irq: Remove stale and misleading comment

The comment claims we will call host->ops->map() to update the flags if
we find a previously established mapping, but we never did.  We used
to call remap, but that call was removed in da05198002 (powerpc: Remove
irq_host_ops->remap hook).

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index a24d37d..f2fd653 100644 (file)
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -727,9 +727,7 @@ unsigned int irq_create_mapping(struct irq_host *host,
        }
        pr_debug("irq: -> using host @%p\n", host);
 
-       /* Check if mapping already exist, if it does, call
-        * host->ops->map() to update the flags
-        */
+       /* Check if mapping already exists */
        virq = irq_find_mapping(host, hwirq);
        if (virq != NO_IRQ) {
                pr_debug("irq: -> existing mapping on virq %d\n", virq);