Re: [PATCH] staging: dgnc: Replace macro with flow control statement by a function

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What you need to do is to replace all DGNC_VERIFY_BOARD() macro calls with its definition.

Regards,
Ravi Teja

On Sun, Jul 05, 2015 at 11:46:28PM +0530, Arjun Krishna Babu wrote:
> This patch fixes the checkpatch.pl warning:
> 
> WARNING: Macros with flow control statements should be avoided
> 
> Replace the macro with a function doing the exact same task as the
> macro.
> 
> Signed-off-by: Arjun Krishna Babu <arjunkrishnababu96@xxxxxxxxx>
> ---
>  drivers/staging/dgnc/dgnc_sysfs.c | 22 ++++++++++------------
>  1 file changed, 10 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/staging/dgnc/dgnc_sysfs.c b/drivers/staging/dgnc/dgnc_sysfs.c
> index 44db870..8ab0922 100644
> --- a/drivers/staging/dgnc/dgnc_sysfs.c
> +++ b/drivers/staging/dgnc/dgnc_sysfs.c
> @@ -92,19 +92,17 @@ void dgnc_remove_driver_sysfiles(struct pci_driver *dgnc_driver)
>  }
>  
>  
> -#define DGNC_VERIFY_BOARD(p, bd)				\
> -	do {							\
> -		if (!p)						\
> -			return 0;				\
> -								\
> -		bd = dev_get_drvdata(p);			\
> -		if (!bd || bd->magic != DGNC_BOARD_MAGIC)	\
> -			return 0;				\
> -		if (bd->state != BOARD_READY)			\
> -			return 0;				\
> -	} while (0)
> -
> +static int DGNC_VERIFY_BOARD(struct device *p, struct dgnc_board *bd)
> +{
> +	if (!p)
> +		return 0;
>  
> +	bd = dev_get_drvdata(p);
> +	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
> +		return 0;
> +	if (bd->state != BOARD_READY)
> +		return 0;
> +}
>  
>  static ssize_t dgnc_vpd_show(struct device *p, struct device_attribute *attr,
>  			     char *buf)
> -- 
> 1.9.1
> 
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