linux-kernel - Re: [PATCH 1/4] [Patch-next] ACPI, APEI, ERST Fix the wrong checking of Serialization Header's length

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Date:	Tue, 17 Aug 2010 13:44:13 +0900
From:	Jin Dongming <jin.dongming@...css.fujitsu.com>
To:	Huang Ying <ying.huang@...el.com>
CC:	Randy Dunlap <randy.dunlap@...cle.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Andi Kleen <andi@...stfloor.org>,
	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	ACPI <linux-acpi@...r.kernel.org>,
	LKLM <linux-kernel@...r.kernel.org>,
	Lu Yinghai <yinghai@...nel.org>
Subject: Re: [PATCH 1/4] [Patch-next] ACPI, APEI, ERST Fix the wrong checking
 of Serialization Header's length

(2010/08/17 12:22), Huang Ying wrote:
> On Tue, 2010-08-17 at 10:14 +0800, Jin Dongming wrote:
>>> I don't think it is necessary to change the header definition, and
>>> seri_header is not a good name for me.
>> Why I added this structure here is that I don't want to do following checking.
>> For example,
>> 	if (header_length != 0x0c) {
>> 		...
>> 	}
> 
> This can be:
> 
>  static int erst_check_table(struct acpi_table_erst *erst_tab)
>  {
> -       if (erst_tab->header_length != sizeof(struct acpi_table_erst))
> +       if (erst_tab->header_length !=
> +           (sizeof(struct acpi_table_erst) - sizeof(erst_tab->header)))
> 
> like Yinghai has been done.
> 
Yes. It looks good. And I am sorry I am unaware of Yinghai' patch. 

> Best Regards,
> Huang Ying
> 
> 

Best Regards,
Jin Dongming

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