chained_irq_enter() and chained_irq_exit() don't modify their 'chip'
parameter.

So change the prototype of these functions to accept const struct irq_chip
pointer.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
Compile tested only
---
 include/linux/irqchip/chained_irq.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/irqchip/chained_irq.h b/include/linux/irqchip/chained_irq.h
index dd8b3c476666..f248d63acfca 100644
--- a/include/linux/irqchip/chained_irq.h
+++ b/include/linux/irqchip/chained_irq.h
@@ -13,7 +13,7 @@
  * Entry/exit functions for chained handlers where the primary IRQ chip
  * may implement either fasteoi or level-trigger flow control.
  */
-static inline void chained_irq_enter(struct irq_chip *chip,
+static inline void chained_irq_enter(const struct irq_chip *chip,
 				     struct irq_desc *desc)
 {
 	/* FastEOI controllers require no action on entry. */
@@ -29,7 +29,7 @@ static inline void chained_irq_enter(struct irq_chip *chip,
 	}
 }
 
-static inline void chained_irq_exit(struct irq_chip *chip,
+static inline void chained_irq_exit(const struct irq_chip *chip,
 				    struct irq_desc *desc)
 {
 	if (chip->irq_eoi)
-- 
2.47.0