[PATCH] gpio: drop broken to_gpio_irq_chip() helper

[Johan Hovold <johan@xxxxxxxxxx>]

Drop the broken to_gpio_irq_chip() container_of() helper, which would
break the build for anyone who tries to use it.

Specifically, struct gpio_irq_chip only holds a pointer to a struct
irq_chip so using container_of() on an irq-chip pointer makes no sense.

Fixes: da80ff81a8f5 ("gpio: Move irqchip into struct gpio_irq_chip")
Cc: Thierry Reding <treding@xxxxxxxxxx>
Cc: Grygorii Strashko <grygorii.strashko@xxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
---
 include/linux/gpio/driver.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 2db62b550b95..21bff1f14fde 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -166,11 +166,6 @@ struct gpio_irq_chip {
 	 */
 	void		(*irq_disable)(struct irq_data *data);
 };
-
-static inline struct gpio_irq_chip *to_gpio_irq_chip(struct irq_chip *chip)
-{
-	return container_of(chip, struct gpio_irq_chip, chip);
-}
 #endif
 
 /**
-- 
2.19.1