From: Len Brown <len.brown@xxxxxxxxx>
drivers/built-in.o: In function `acpi_video_bus_put_devices':
video.c:(.text+0x79663): undefined reference to
`video_output_unregister'
drivers/built-in.o: In function `acpi_video_bus_add':
video.c:(.text+0x7b0b3): undefined reference to `video_output_register'
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
include/linux/video_output.h | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/include/linux/video_output.h b/include/linux/video_output.h
index 2fb46bc..c630194 100644
--- a/include/linux/video_output.h
+++ b/include/linux/video_output.h
@@ -34,9 +34,23 @@ struct output_device {
struct device dev;
};
#define to_output_device(obj) container_of(obj, struct output_device, dev)
+#ifdef CONFIG_VIDEO_OUTPUT_CONTROL
struct output_device *video_output_register(const char *name,
struct device *dev,
void *devdata,
struct output_properties *op);
void video_output_unregister(struct output_device *dev);
+#else
+static struct output_device *video_output_register(const char *name,
+ struct device *dev,
+ void *devdata,
+ struct output_properties *op)
+{
+ return ERR_PTR(-ENODEV);
+}
+static void video_output_unregister(struct output_device *dev)
+{
+ return;
+};
+#endif
#endif
--
1.7.3.2.343.g7d43d
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