Re: [PATCH] staging: comedi: dt2801: Prefer using the BIT macro

From: Ian Abbott
Date: Mon Jan 11 2016 - 12:32:09 EST


On 11/01/16 16:04, Bhaktipriya Shridhar wrote:
As suggested by checkpatch.pl, this patch replaces bit shifting on 1 with the
BIT(x) macro.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@xxxxxxxxx>
---
drivers/staging/comedi/drivers/dt2801.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c
index 80e38de..6c7b4d2 100644
--- a/drivers/staging/comedi/drivers/dt2801.c
+++ b/drivers/staging/comedi/drivers/dt2801.c
@@ -68,17 +68,17 @@ Configuration options:
/* Command modifiers (only used with read/write), EXTTRIG can be
used with some other commands.
*/
-#define DT_MOD_DMA (1<<4)
-#define DT_MOD_CONT (1<<5)
-#define DT_MOD_EXTCLK (1<<6)
-#define DT_MOD_EXTTRIG (1<<7)
+#define DT_MOD_DMA BIT(4)
+#define DT_MOD_CONT BIT(5)
+#define DT_MOD_EXTCLK BIT(6)
+#define DT_MOD_EXTTRIG BIT(7)

/* Bits in status register */
-#define DT_S_DATA_OUT_READY (1<<0)
-#define DT_S_DATA_IN_FULL (1<<1)
-#define DT_S_READY (1<<2)
-#define DT_S_COMMAND (1<<3)
-#define DT_S_COMPOSITE_ERROR (1<<7)
+#define DT_S_DATA_OUT_READY BIT(0)
+#define DT_S_DATA_IN_FULL BIT(1)
+#define DT_S_READY BIT(2)
+#define DT_S_COMMAND BIT(3)
+#define DT_S_COMPOSITE_ERROR BIT(7)

/* registers */
#define DT2801_DATA 0
--
2.1.4


Thanks!

Reviewed-by: Ian Abbott <abbotti@xxxxxxxxx>

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