If CONFIG_V4L2_FLASH_LED_CLASS wasn't defined, v4l2_flash_init() and
v4l2_flash_release() were empty macros. This will lead to compiler warnings
in form of unused variables if the variables are not used for other
purposes.
Instead, implement v4l2_flash_init() and v4l2_flash_release() as static
inline functions.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxx>
---
include/media/v4l2-flash.h | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/include/media/v4l2-flash.h b/include/media/v4l2-flash.h
index 945fa08..67a2cbf 100644
--- a/include/media/v4l2-flash.h
+++ b/include/media/v4l2-flash.h
@@ -138,8 +138,16 @@ struct v4l2_flash *v4l2_flash_init(struct led_classdev_flash *fled_cdev,
void v4l2_flash_release(struct v4l2_flash *v4l2_flash);
#else
-#define v4l2_flash_init(fled_cdev, ops, config) (NULL)
-#define v4l2_flash_release(v4l2_flash)
+static inline struct v4l2_flash *v4l2_flash_init(
+ struct led_classdev_flash *fled_cdev, const struct v4l2_flash_ops *ops,
+ struct v4l2_flash_config *config)
+{
+ return NULL;
+}
+
+static inline void v4l2_flash_release(struct v4l2_flash *v4l2_flash)
+{
+}
#endif /* CONFIG_V4L2_FLASH_LED_CLASS */
#endif /* _V4L2_FLASH_H */
--
1.7.10.4
--
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