linux-kernel - Re: [PATCH 5/4] [-mm patch] Rename macros returning the size.

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Date:	Thu, 20 Sep 2007 17:51:42 +0530 (IST)
From:	Satyam Sharma <satyam@...radead.org>
To:	Ken'ichi Ohmichi <oomichi@....nes.nec.co.jp>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Adrian Bunk <bunk@...nel.org>,
	kexec-ml <kexec@...ts.infradead.org>,
	lkml <linux-kernel@...r.kernel.org>,
	David Rientjes <rientjes@...gle.com>,
	Joe Perches <joe@...ches.com>
Subject: Re: [PATCH 5/4] [-mm patch] Rename macros returning the size.

Hi,


On Thu, 20 Sep 2007, Ken'ichi Ohmichi wrote:
> 
> [PATCH 5/4] [-mm patch] Rename macros returning the size.
>  The #define SIZE() should be renamed STRUCT_SIZE() since it's always 
>  returning the size of the struct with a given name.  This would allow 
>  TYPEDEF_SIZE() to simply become SIZE() since it need not be used 
>  exclusively for typedefs. This idea is David Rientjes's.
>  http://www.ussg.iu.edu/hypermail/linux/kernel/0709.1/1964.html
> 
> Thanks
> Ken'ichi Ohmichi
> 
> ---
> Signed-off-by: David Rientjes <rientjes@...gle.com>

Hmm, I think adding a s-o-b line for David here isn't quite correct.
When someone reviews a patch and gives a suggestion, you only need to
copy him on the next iteration (and he may ack it or whatever, if he
wants) -- but adding a s-o-b line like that ends up (incorrectly)
denoting that he came between the author-to-git-commit chain ...


> Signed-off-by: Ken'ichi Ohmichi <oomichi@....nes.nec.co.jp>

> --- a/include/linux/kexec.h	2007-09-18 15:22:19.000000000 +0900
> +++ b/include/linux/kexec.h	2007-09-18 15:23:22.000000000 +0900
> @@ -131,10 +131,10 @@ unsigned long paddr_vmcoreinfo_note(void
>  	vmcoreinfo_append_str("SYMBOL(%s)=%lx\n", #name, (unsigned long)&name)
>  #define VMCOREINFO_SIZE(name) \
>  	vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \
> -			      (unsigned long)sizeof(struct name))
> -#define VMCOREINFO_TYPEDEF_SIZE(name) \
> -	vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \
>  			      (unsigned long)sizeof(name))
> +#define VMCOREINFO_STRUCT_SIZE(name) \
> +	vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \
> +			      (unsigned long)sizeof(struct name))
>  #define VMCOREINFO_OFFSET(name, field) \
>  	vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \
>  			      (unsigned long)&(((struct name *)0)->field))

Please use %zu and lose all the ugly (unsigned long) casts here.

Otherwise it looks good,

Satyam
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