diff --git a/[refs] b/[refs]
index bd2138d53520..d28e961e410b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 58f1fde22e3d1faffcc8d0e5b5fa62bd9d9ee5d4
+refs/heads/master: bb50054f3ecfb8d1e5b2e568db261891bcc2c718
diff --git a/trunk/drivers/staging/comedi/drivers/rtd520.c b/trunk/drivers/staging/comedi/drivers/rtd520.c
index e81939c0f8c2..ebe74bfa09a0 100644
--- a/trunk/drivers/staging/comedi/drivers/rtd520.c
+++ b/trunk/drivers/staging/comedi/drivers/rtd520.c
@@ -406,10 +406,6 @@ struct rtdPrivate {
 
 /* Macros to access registers */
 
-/* Start single DAC conversion on both DACs */
-#define RtdDacBothUpdate(dev) \
-	writew(0, devpriv->las0+LAS0_DAC)
-
 /* Set DAC output type and range */
 #define RtdDacRange(dev, n, v) \
 	writew((v) & 7, devpriv->las0 \