linux-kernel - Re: [PATCH v2 RESEND 05/18] x86, ACPICA: Split acpi_boot_table

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Message-ID: <51FFA748.50800@cn.fujitsu.com>
Date:	Mon, 05 Aug 2013 21:23:20 +0800
From:	Tang Chen <tangchen@...fujitsu.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	robert.moore@...el.com, lv.zheng@...el.com, lenb@...nel.org,
	tglx@...utronix.de, mingo@...e.hu, hpa@...or.com,
	akpm@...ux-foundation.org, tj@...nel.org, trenn@...e.de,
	yinghai@...nel.org, jiang.liu@...wei.com, wency@...fujitsu.com,
	laijs@...fujitsu.com, isimatu.yasuaki@...fujitsu.com,
	izumi.taku@...fujitsu.com, mgorman@...e.de, minchan@...nel.org,
	mina86@...a86.com, gong.chen@...ux.intel.com,
	vasilis.liaskovitis@...fitbricks.com, lwoodman@...hat.com,
	riel@...hat.com, jweiner@...hat.com, prarit@...hat.com,
	zhangyanfei@...fujitsu.com, yanghy@...fujitsu.com, x86@...nel.org,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, linux-acpi@...r.kernel.org
Subject: Re: [PATCH v2 RESEND 05/18] x86, ACPICA: Split acpi_boot_table_init()
 into two parts.

Hi Rafael,

On 08/05/2013 09:26 PM, Rafael J. Wysocki wrote:
......
>
> I think I understand what you're trying to achieve and I don't have objections
> agaist the goal, but the matter is *how* to do that.
>
> Why don't you do something like this:
> (1) Introduce two new functions that will each do part of
>      acpi_tb_parse_root_table() such that calling them in sequence, one right
>      after the other, will be exactly equivalent to the current
>      acpi_tb_parse_root_table().
> (2) Redefine acpi_tb_parse_root_table() as a wrapper calling those two new
>      function one right after the other.
> (3) Make Linux use the two new functions directly instead of calling
>      acpi_tb_parse_root_table()?
>
> Then, Linux will use your new functions and won't call acpi_tb_parse_root_table()
> at all, but the other existing users of ACPICA may still call it without any
> modifications.
>
> Does this make sense to you?

Thank you for you advice. It does make sense. I'll try your idea.

Thanks.



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