linux-kernel - Re: [PATCH 1/2 v2] Staging: comedi: fix lines that are over 80 characters

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Date:	Fri, 28 Feb 2014 12:42:15 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Chase Southwood <chase.southwood@...oo.com>
Cc:	gregkh@...uxfoundation.org, abbotti@....co.uk,
	hsweeten@...ionengravers.com, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2 v2] Staging: comedi: fix lines that are over 80
 characters

On Fri, Feb 28, 2014 at 03:15:45AM -0600, Chase Southwood wrote:
> This patch introduces a simple helper function, outl_1564_timer(), to
> allow several lines which violate the character limit to be shortened.
> A handful of other lines that are too long are appropriately split as
> well.
> 
> Cc: Dan Carpenter <dan.carpenter@...cle.com>
> Signed-off-by: Chase Southwood <chase.southwood@...oo.com>
> ---
> 2: introduced outl_1564_timer() at the suggestion of Dan.
>  .../comedi/drivers/addi-data/hwdrv_apci1564.c      | 83 +++++++++++++---------
>  1 file changed, 49 insertions(+), 34 deletions(-)
> 
> diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
> index 2b47fa1..d958d3c 100644
> --- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
> +++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
> @@ -99,6 +99,9 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
>  #define APCI1564_TCW_WARN_TIMEVAL			24
>  #define APCI1564_TCW_WARN_TIMEBASE			28
>  
> +/* Helper functions */

Obvious comment is too obvious.

> +static void outl_1564_timer(struct addi_private *, unsigned int, unsigned int);
> +

Avoid forward declarations.  Put the function itself here.

Do a function for APCI1564_DIGITAL_IP as well.

outl_1564_digital_ip()
inl_1564_digital_ip()

To be honest, I'm not sure how much the 1564 adds to the name.  The
names should match of course.

I wonder if this line is buggy?:
outl(0x0, devpriv->i_IobaseAmcc + APCI1564_DIGITAL_IP_INTERRUPT_MODE1); /* Disable the and/or interrupt */
Should it be?
outl(0x0, devpriv->i_IobaseAmcc + APCI1564_DIGITAL_IP + APCI1564_DIGITAL_IP_INTERRUPT_MODE1);

You would need to read the specs to be sure.

Anyway, take some more time with this and play with different ways to
clean it up.

regards,
dan carpenter

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