gpiolib: unexport gpiod_set_transitory()

There are no and never have been any users of gpiod_set_transitory()
outside the core GPIOLIB code. Make it private.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpiolib.c

@@ -2700,7 +2700,6 @@ int gpiod_set_transitory(struct gpio_desc *desc, bool transitory)
 						      PIN_CONFIG_PERSIST_STATE,
 						      !transitory);
 }
-EXPORT_SYMBOL_GPL(gpiod_set_transitory);
 
 /**
  * gpiod_is_active_low - test whether a GPIO is active-low or not

drivers/gpio/gpiolib.h

@@ -144,6 +144,8 @@ int gpiod_set_array_value_complex(bool raw, bool can_sleep,
 				  struct gpio_array *array_info,
 				  unsigned long *value_bitmap);
 
+int gpiod_set_transitory(struct gpio_desc *desc, bool transitory);
+
 extern spinlock_t gpio_lock;
 extern struct list_head gpio_devices;
 

include/linux/gpio/consumer.h

@@ -159,7 +159,6 @@ int gpiod_set_raw_array_value_cansleep(unsigned int array_size,
 
 int gpiod_set_config(struct gpio_desc *desc, unsigned long config);
 int gpiod_set_debounce(struct gpio_desc *desc, unsigned int debounce);
-int gpiod_set_transitory(struct gpio_desc *desc, bool transitory);
 void gpiod_toggle_active_low(struct gpio_desc *desc);
 
 int gpiod_is_active_low(const struct gpio_desc *desc);
@@ -494,13 +493,6 @@ static inline int gpiod_set_debounce(struct gpio_desc *desc, unsigned int deboun
 	return -ENOSYS;
 }
 
-static inline int gpiod_set_transitory(struct gpio_desc *desc, bool transitory)
-{
-	/* GPIO can never have been requested */
-	WARN_ON(desc);
-	return -ENOSYS;
-}
-
 static inline void gpiod_toggle_active_low(struct gpio_desc *desc)
 {
 	/* GPIO can never have been requested */