linux-kernel - Re: [Patch 2/3] elf: clean up fill_note

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Message-ID: <4A4C808A.9010302@redhat.com>
Date:	Thu, 02 Jul 2009 17:40:26 +0800
From:	Amerigo Wang <amwang@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	linux-kernel@...r.kernel.org, viro@...iv.linux.org.uk,
	roland@...hat.com, serue@...ibm.com, dhowells@...hat.com,
	jmorris@...ei.org, linux-fsdevel@...r.kernel.org
Subject: Re: [Patch 2/3] elf: clean up fill_note_info()

Andrew Morton wrote:
> On Wed, 1 Jul 2009 01:06:36 -0400
> Amerigo Wang <amwang@...hat.com> wrote:
>
>   
>> +#define	NUM_NOTES	6
>>  	info->notes = kmalloc(NUM_NOTES * sizeof(struct memelfnote),
>>  			      GFP_KERNEL);
>> +#undef NUM_NOTES
>>     
>
> That #define amounts to a really perverse code comment.
>
> How about we do this?
>   


Ah, better! No problem for me.

Thank you!
> --- a/fs/binfmt_elf.c~elf-clean-up-fill_note_info-fix
> +++ a/fs/binfmt_elf.c
> @@ -1719,10 +1719,8 @@ static int elf_note_info_init(struct elf
>  	memset(info, 0, sizeof(*info));
>  	INIT_LIST_HEAD(&info->thread_list);
>  
> -#define	NUM_NOTES	6
> -	info->notes = kmalloc(NUM_NOTES * sizeof(struct memelfnote),
> -			      GFP_KERNEL);
> -#undef NUM_NOTES
> +	/* Allocate space for six ELF notes */
> +	info->notes = kmalloc(6 * sizeof(struct memelfnote), GFP_KERNEL);
>  	if (!info->notes)
>  		return 0;
>  	info->psinfo = kmalloc(sizeof(*info->psinfo), GFP_KERNEL);
> _
>
>   

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