staging: comedi: rtd520: remove RtdDio0CtrlRead macro

This macro uses the 'devpriv' macro which relies on a local variable
having a specific name. It's also not used. Remove the macro.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index bcf15aec1d82758020fc0e7747cbfecf5ebf25a8..b0c5f344c168d65dcd02c311844a9c811fc8e5b2 100644 (file)
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -406,8 +406,6 @@ struct rtdPrivate {
 
 /* Macros to access registers */
 
-#define RtdDio0CtrlRead(dev) \
-       (readw(devpriv->las0+LAS0_DIO0_CTRL) & 0xff)
 #define RtdDio0CtrlWrite(dev, v) \
        writew((v) & 0xff, devpriv->las0+LAS0_DIO0_CTRL)