diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c
index eb5e341..bf7bb1c 100644
--- a/drivers/media/video/cx23885/cx23885-core.c
+++ b/drivers/media/video/cx23885/cx23885-core.c
@@ -1733,12 +1733,12 @@
 	return IRQ_RETVAL(handled);
 }
 
-int encoder_on_portb(struct cx23885_dev *dev)
+static inline int encoder_on_portb(struct cx23885_dev *dev)
 {
 	return cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER;
 }
 
-int encoder_on_portc(struct cx23885_dev *dev)
+static inline int encoder_on_portc(struct cx23885_dev *dev)
 {
 	return cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER;
 }