linux-kernel - Re: [RFC][PATCH] pstore: EFI Support

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Message-ID: <BANLkTimV8=o1zOeVJs9EA64kc+1=RZCJeA@mail.gmail.com>
Date:	Wed, 11 May 2011 21:09:26 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Greg KH <greg@...ah.com>
Cc:	Seiji Aguchi <seiji.aguchi@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"Luck, Tony" <tony.luck@...el.com>,
	"hpa@...or.com" <hpa@...or.com>,
	"mikew@...gle.com" <mikew@...gle.com>,
	"a.p.zijlstra@...llo.nl" <a.p.zijlstra@...llo.nl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"tj@...nel.org" <tj@...nel.org>,
	"fweisbec@...il.com" <fweisbec@...il.com>,
	"dle-develop@...ts.sourceforge.net" 
	<dle-develop@...ts.sourceforge.net>,
	Satoru Moriya <satoru.moriya@....com>
Subject: Re: [RFC][PATCH] pstore: EFI Support

On Wed, May 11, 2011 at 12:11 AM, Greg KH <greg@...ah.com> wrote:
> On Tue, May 10, 2011 at 11:00:44AM -0400, Seiji Aguchi wrote:
>> Description of boot paremeters is following.
>>
>>  - efi_pstore_enable
>>    enable EFI support of pstore.
>>
>>  - efi_pstore_len
>>    Sets the buffer size of EFI variable space used by pstore.
>
> Please don't add new boot parameters if at all possible.  Distros will
> not know to enable them, and users don't know how to either.
>
> Use sane defaults, and provide ways to override them if needed, but
> don't rely on them for new functionality if at all possible.

I agree. It seems that we should enable this by default when APEI and
EFI are both enabled, this could be done by Kconfig.

Thanks.
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