linux-kernel - Re: [PATCH] staging: vt6655: correct coding style issue

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Message-ID: <20140504212658.GA28438@kroah.com>
Date:	Sun, 4 May 2014 17:26:58 -0400
From:	Greg KH <greg@...ah.com>
To:	Clément Calmels <clement.calmels@...e.fr>
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: vt6655: correct coding style issue

On Sun, May 04, 2014 at 09:52:09PM +0200, Clément Calmels wrote:
> Remove C99 comment and rewrite lines over 80 characters.
> Warnings and error found by checkpatch.pl script.
> 
> Signed-off-by: Clément Calmels <clement.calmels@...e.fr>
> ---
>  drivers/staging/vt6655/tmacro.h | 13 +++++++++----
>  1 file changed, 9 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/staging/vt6655/tmacro.h b/drivers/staging/vt6655/tmacro.h
> index 59c6e72..264c6ed 100644
> --- a/drivers/staging/vt6655/tmacro.h
> +++ b/drivers/staging/vt6655/tmacro.h
> @@ -44,17 +44,22 @@
>  #define LOWORD(d)           ((unsigned short)(d))
>  #endif
>  #if !defined(HIWORD)
> -#define HIWORD(d)           ((unsigned short)((((unsigned long)(d)) >> 16) & 0xFFFF))
> +#define HIWORD(d)							\
> +	((unsigned short)((((unsigned long)(d)) >> 16) & 0xFFFF))
>  #endif
>  
>  #define LODWORD(q)          ((q).u.dwLowDword)
>  #define HIDWORD(q)          ((q).u.dwHighDword)
>  
>  #if !defined(MAKEWORD)
> -#define MAKEWORD(lb, hb)    ((unsigned short)(((unsigned char)(lb)) | (((unsigned short)((unsigned char)(hb))) << 8)))
> +#define MAKEWORD(lb, hb)\
> +	((unsigned short)(((unsigned char)(lb))				\
> +			  | (((unsigned short)((unsigned char)(hb))) << 8)))
>  #endif
>  #if !defined(MAKEDWORD)
> -#define MAKEDWORD(lw, hw)   ((unsigned long)(((unsigned short)(lw)) | (((unsigned long)((unsigned short)(hw))) << 16)))
> +#define MAKEDWORD(lw, hw)\
> +	((unsigned long)(((unsigned short)(lw))				\
> +			 | (((unsigned long)((unsigned short)(hw))) << 16)))
>  #endif
>  
> -#endif // __TMACRO_H__
> +#endif /* __TMACRO_H__ */

Why not just switch to use the built-in macros the kernel provides for
this?

greg k-h
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