linux-kernel - Re: [PATCH v6 6/8] vmcore: allocate ELF note segment in the 2nd kernel vmalloc memory

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Message-ID: <20130516203236.GG5904@redhat.com>
Date:	Thu, 16 May 2013 16:32:36 -0400
From:	Vivek Goyal <vgoyal@...hat.com>
To:	HATAYAMA Daisuke <d.hatayama@...fujitsu.com>
Cc:	ebiederm@...ssion.com, akpm@...ux-foundation.org, cpw@....com,
	kumagai-atsushi@....nes.nec.co.jp, lisa.mitchell@...com,
	kexec@...ts.infradead.org, linux-kernel@...r.kernel.org,
	zhangyanfei@...fujitsu.com, jingbai.ma@...com, linux-mm@...ck.org,
	riel@...hat.com, walken@...gle.com, hughd@...gle.com,
	kosaki.motohiro@...fujitsu.com
Subject: Re: [PATCH v6 6/8] vmcore: allocate ELF note segment in the 2nd
 kernel vmalloc memory

On Wed, May 15, 2013 at 06:06:14PM +0900, HATAYAMA Daisuke wrote:

[..]

> +static int __init get_note_number_and_size_elf32(const Elf32_Ehdr *ehdr_ptr,
> +						 int *nr_ptnote, u64 *phdr_sz)
> +{
> +	return process_note_headers_elf32(ehdr_ptr, nr_ptnote, phdr_sz, NULL);
> +}
> +
> +static int __init copy_notes_elf32(const Elf32_Ehdr *ehdr_ptr, char *notes_buf)
> +{
> +	return process_note_headers_elf32(ehdr_ptr, NULL, NULL, notes_buf);
> +}
> +

Please don't do this. We need to create two separate functions doing
two different operations and not just create wrapper around a function
which does two things.

I know both functions will have similar for loops for going through
the elf notes but it is better then doing function overloading based
on parameters passed.

Vivek
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