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Groups > linux.kernel > #1267294 > unrolled thread

[PATCH] comedi: cb_pcidda: Fix coding style - use BIT macro

Started byRanjith Thangavel <ranjithece24@gmail.com>
First post2015-11-11 17:30 +0100
Last post2015-11-12 19:10 +0100
Articles 3 — 3 participants

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  [PATCH] comedi: cb_pcidda: Fix coding style - use BIT macro Ranjith Thangavel <ranjithece24@gmail.com> - 2015-11-11 17:30 +0100
    Re: [PATCH] comedi: cb_pcidda: Fix coding style - use BIT macro Ian Abbott <abbotti@mev.co.uk> - 2015-11-12 19:10 +0100
    Re: [PATCH] comedi: cb_pcidda: Fix coding style - use BIT macro Fabio Estevam <festevam@gmail.com> - 2015-11-12 19:10 +0100

#1267294 — [PATCH] comedi: cb_pcidda: Fix coding style - use BIT macro

FromRanjith Thangavel <ranjithece24@gmail.com>
Date2015-11-11 17:30 +0100
Subject[PATCH] comedi: cb_pcidda: Fix coding style - use BIT macro
Message-ID<qtGrx-592-41@gated-at.bofh.it>
BIT macro is used for defining BIT location instead of
shifting operator - coding style issue

Signed-off-by: Ranjith Thangavel <ranjithece24@gmail.com>
---
 drivers/staging/comedi/drivers/cb_pcidda.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c
index b00a36a..ccb37d1 100644
--- a/drivers/staging/comedi/drivers/cb_pcidda.c
+++ b/drivers/staging/comedi/drivers/cb_pcidda.c
@@ -51,13 +51,13 @@
 
 /* DAC registers */
 #define CB_DDA_DA_CTRL_REG		0x00	   /* D/A Control Register  */
-#define CB_DDA_DA_CTRL_SU		(1 << 0)   /*  Simultaneous update  */
-#define CB_DDA_DA_CTRL_EN		(1 << 1)   /*  Enable specified DAC */
+#define CB_DDA_DA_CTRL_SU		BIT(0)   /*  Simultaneous update  */
+#define CB_DDA_DA_CTRL_EN		BIT(1)   /*  Enable specified DAC */
 #define CB_DDA_DA_CTRL_DAC(x)		((x) << 2) /*  Specify DAC channel  */
 #define CB_DDA_DA_CTRL_RANGE2V5		(0 << 6)   /*  2.5V range           */
 #define CB_DDA_DA_CTRL_RANGE5V		(2 << 6)   /*  5V range             */
 #define CB_DDA_DA_CTRL_RANGE10V		(3 << 6)   /*  10V range            */
-#define CB_DDA_DA_CTRL_UNIP		(1 << 8)   /*  Unipolar range       */
+#define CB_DDA_DA_CTRL_UNIP		BIT(8)   /*  Unipolar range       */
 
 #define DACALIBRATION1	4	/*  D/A CALIBRATION REGISTER 1 */
 /* write bits */
-- 
1.7.10.4

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#1268159

FromIan Abbott <abbotti@mev.co.uk>
Date2015-11-12 19:10 +0100
Message-ID<qu4tP-3RE-13@gated-at.bofh.it>
In reply to#1267294
On 11/11/15 16:27, Ranjith Thangavel wrote:
> BIT macro is used for defining BIT location instead of
> shifting operator - coding style issue
>
> Signed-off-by: Ranjith Thangavel <ranjithece24@gmail.com>
> ---
>   drivers/staging/comedi/drivers/cb_pcidda.c |    6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/staging/comedi/drivers/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c
> index b00a36a..ccb37d1 100644
> --- a/drivers/staging/comedi/drivers/cb_pcidda.c
> +++ b/drivers/staging/comedi/drivers/cb_pcidda.c
> @@ -51,13 +51,13 @@
>
>   /* DAC registers */
>   #define CB_DDA_DA_CTRL_REG		0x00	   /* D/A Control Register  */
> -#define CB_DDA_DA_CTRL_SU		(1 << 0)   /*  Simultaneous update  */
> -#define CB_DDA_DA_CTRL_EN		(1 << 1)   /*  Enable specified DAC */
> +#define CB_DDA_DA_CTRL_SU		BIT(0)   /*  Simultaneous update  */
> +#define CB_DDA_DA_CTRL_EN		BIT(1)   /*  Enable specified DAC */
>   #define CB_DDA_DA_CTRL_DAC(x)		((x) << 2) /*  Specify DAC channel  */
>   #define CB_DDA_DA_CTRL_RANGE2V5		(0 << 6)   /*  2.5V range           */
>   #define CB_DDA_DA_CTRL_RANGE5V		(2 << 6)   /*  5V range             */
>   #define CB_DDA_DA_CTRL_RANGE10V		(3 << 6)   /*  10V range            */
> -#define CB_DDA_DA_CTRL_UNIP		(1 << 8)   /*  Unipolar range       */
> +#define CB_DDA_DA_CTRL_UNIP		BIT(8)   /*  Unipolar range       */
>
>   #define DACALIBRATION1	4	/*  D/A CALIBRATION REGISTER 1 */
>   /* write bits */
>

Thanks!

Reviewed-by: Ian Abbott <abbotti@mev.co.uk>

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#1268164

FromFabio Estevam <festevam@gmail.com>
Date2015-11-12 19:10 +0100
Message-ID<qu4tQ-3RE-25@gated-at.bofh.it>
In reply to#1267294
On Wed, Nov 11, 2015 at 2:27 PM, Ranjith Thangavel
<ranjithece24@gmail.com> wrote:
> BIT macro is used for defining BIT location instead of
> shifting operator - coding style issue

I would not call it a coding style issue.
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