linux-kernel - Re: [PATCH 2/2] comedi: drivers: Fix - BIT macro used coding style issue

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Date:	Mon, 02 Nov 2015 14:36:00 +0000
From:	Ian Abbott <abbotti@....co.uk>
To:	ranjithece24@...il.com, gregkh@...uxfoundation.org
CC:	hsweeten@...ionengravers.com, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] comedi: drivers: Fix - BIT macro used coding style
 issue

On 02/11/15 14:25, ranjithece24@...il.com wrote:
> From: Ranjith <ranjithece24@...il.com>
>
> BIT macro is used for defining BIT location instead of shifting
> operator - coding style issue
>
> Signed-off-by: Ranjith <ranjithece24@...il.com>
> ---
>   drivers/staging/comedi/drivers/addi_apci_1032.c |    2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/comedi/drivers/addi_apci_1032.c b/drivers/staging/comedi/drivers/addi_apci_1032.c
> index fd5ce21..168602b 100644
> --- a/drivers/staging/comedi/drivers/addi_apci_1032.c
> +++ b/drivers/staging/comedi/drivers/addi_apci_1032.c
> @@ -84,7 +84,7 @@
>   #define APCI1032_MODE2_REG		0x08
>   #define APCI1032_STATUS_REG		0x0c
>   #define APCI1032_CTRL_REG		0x10
> -#define APCI1032_CTRL_INT_OR		(0 << 1)
> +#define APCI1032_CTRL_INT_OR		BIT(0)
>   #define APCI1032_CTRL_INT_AND		BIT(1)
>   #define APCI1032_CTRL_INT_ENA		BIT(2)

No, that's wrong.  (0 << 1) is 0, but BIT(0) is 1.

Hartley already fixed the coding style issue.  It's in linux-next.

-- 
-=( Ian Abbott @ MEV Ltd.    E-mail: <abbotti@....co.uk> )=-
-=(                          Web: http://www.mev.co.uk/  )=-
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