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>

1 files changed, 1 insertions, 3 deletions

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index a24d37d4cf51..f2fd6539d8bf 100644
--- 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);