diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index d92c6825ba10..65f0b11614f5 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -406,10 +406,6 @@ struct rtdPrivate {
 
 /* Macros to access registers */
 
-/* Get status for DMA 0 */
-#define RtdDma0Status(dev) \
-	readb(devpriv->lcfg+LCFG_DMACSR0)
-
 /* Set control for DMA 1 (write only, shadow?) */
 #define RtdDma1Control(dev, n) \
 	writeb(devpriv->dma1Control = (n), devpriv->lcfg+LCFG_DMACSR1)