linux-kernel - Re: [PATCH] staging/comedi: Use dev_ printks in drivers/adl

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Date:	Fri, 5 Oct 2012 10:15:59 +0100
From:	Ian Abbott <abbotti@....co.uk>
To:	YAMANE Toshiaki <yamanetoshi@...il.com>
CC:	Greg Kroah-Hartman <greg@...ah.com>,
	Ian Abbott <ian.abbott@....co.uk>,
	Frank Mori Hess <fmhess@...rs.sourceforge.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] staging/comedi: Use dev_ printks in drivers/adl_pci8164.c

On 2012-10-05 01:07, YAMANE Toshiaki wrote:
> fixed below checkpatch warning.
> - WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...
>
> Signed-off-by: YAMANE Toshiaki <yamanetoshi@...il.com>
> ---
>   drivers/staging/comedi/drivers/adl_pci8164.c |   12 ++++++------
>   1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/staging/comedi/drivers/adl_pci8164.c b/drivers/staging/comedi/drivers/adl_pci8164.c
> index 05e06e7..6dbe465 100644
> --- a/drivers/staging/comedi/drivers/adl_pci8164.c
> +++ b/drivers/staging/comedi/drivers/adl_pci8164.c
> @@ -89,9 +89,9 @@ static void adl_pci8164_insn_read(struct comedi_device *dev,
>   	}
>
>   	data[0] = inw(dev->iobase + axis_reg + offset);
> -	printk(KERN_DEBUG "comedi: pci8164 %s read -> "
> -						  "%04X:%04X on axis %s\n",
> -				action, data[0], data[1], axisname);
> +	dev_dbg(dev->class_dev,
> +		  "comedi: pci8164 %s read -> %04X:%04X on axis %s\n",
> +		  action, data[0], data[1], axisname);
>   }

The "comedi: " prefix is superfluous, so should be removed.  The 
dev_dbg() call will emit the word "comedi" twice already without the 
extra prefix.

>
>   static int adl_pci8164_insn_read_msts(struct comedi_device *dev,
> @@ -170,9 +170,9 @@ static void adl_pci8164_insn_out(struct comedi_device *dev,
>
>   	outw(data[0], dev->iobase + axis_reg + offset);
>
> -	printk(KERN_DEBUG "comedi: pci8164 %s write -> "
> -						"%04X:%04X on axis %s\n",
> -				action, data[0], data[1], axisname);
> +	dev_dbg(dev->class_dev,
> +		  "comedi: pci8164 %s write -> %04X:%04X on axis %s\n",
> +		  action, data[0], data[1], axisname);
>
>   }

Same here.

-- 
-=( Ian Abbott @ MEV Ltd.    E-mail: <abbotti@....co.uk>        )=-
-=( Tel: +44 (0)161 477 1898   FAX: +44 (0)161 718 3587         )=-
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