linux-kernel - Re: [PATCH 1/2] sm750fb: coding style fixes lines over 80 chars

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Date:	Tue, 21 Jul 2015 11:35:41 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Vinay Simha BN <simhavcs@...il.com>
Cc:	"open list:STAGING SUBSYSTEM" <devel@...verdev.osuosl.org>,
	"open list:STAGING - SILICON MOTION SM750 FRAME BUFFER DRIVER" 
	<linux-fbdev@...r.kernel.org>,
	Teddy Wang <teddy.wang@...iconmotion.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	open list <linux-kernel@...r.kernel.org>,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: Re: [PATCH 1/2] sm750fb: coding style fixes lines over 80 chars

On Tue, Jul 21, 2015 at 01:10:00PM +0530, Vinay Simha BN wrote:
> diff --git a/drivers/staging/sm750fb/sm750_help.h b/drivers/staging/sm750fb/sm750_help.h
> index 8dc6bd2..43d700b 100644
> --- a/drivers/staging/sm750fb/sm750_help.h
> +++ b/drivers/staging/sm750fb/sm750_help.h
> @@ -49,17 +49,23 @@
>  /* Field Macros */
>  #define FIELD_START(field)              (0 ? field)
>  #define FIELD_END(field)                (1 ? field)
> -#define FIELD_SIZE(field)               (1 + FIELD_END(field) - FIELD_START(field))
> -#define FIELD_MASK(field)               (((1 << (FIELD_SIZE(field)-1)) | ((1 << (FIELD_SIZE(field)-1)) - 1)) << FIELD_START(field))
> -#define FIELD_NORMALIZE(reg, field)     (((reg) & FIELD_MASK(field)) >> FIELD_START(field))
> -#define FIELD_DENORMALIZE(field, value) (((value) << FIELD_START(field)) & FIELD_MASK(field))
> +#define FIELD_SIZE(field)               (1 + FIELD_END(field) - \
> +						FIELD_START(field))
> +#define FIELD_MASK(field)               (((1 << (FIELD_SIZE(field)-1)) \
> +					| ((1 << (FIELD_SIZE(field)-1)) - 1)) \
> +					<< FIELD_START(field))
> +#define FIELD_NORMALIZE(reg, field)     (((reg) & FIELD_MASK(field)) >> \
> +					FIELD_START(field))
> +#define FIELD_DENORMALIZE(field, value) (((value) << FIELD_START(field)) & \
> +					 FIELD_MASK(field))
>  
>  #define FIELD_INIT(reg, field, value)   FIELD_DENORMALIZE(reg ## _ ## field, \
> -							  reg ## _ ## field ## _ ## value)
> +					  reg ## _ ## field ## _ ## value)
>  #define FIELD_INIT_VAL(reg, field, value) \
>  	(FIELD_DENORMALIZE(reg ## _ ## field, value))
>  #define FIELD_VAL_SET(x, r, f, v)       x = x & ~FIELD_MASK(r ## _ ## f) \
> -					| FIELD_DENORMALIZE(r ## _ ## f, r ## _ ## f ## _ ## v)
> +					| FIELD_DENORMALIZE(r ## _ ## f, \
> +					 r ## _ ## f ## _ ## v)
>  
>  #define RGB(r, g, b) \
>  ( \

These are worse for reading now.  Better to ignore the warning instead
of making the code ugly.

regards,
dan carpenter

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