linux-kernel - Re: Use PCI ROMs from EFI boot services

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Date:	Wed, 5 Dec 2012 16:52:54 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-efi@...r.kernel.org, dwmw2@...radead.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: Use PCI ROMs from EFI boot services

On Wed, Dec 5, 2012 at 4:51 PM, Yinghai Lu <yinghai@...nel.org> wrote:
> On Wed, Dec 5, 2012 at 4:36 PM, H. Peter Anvin <hpa@...or.com> wrote:
>> On 12/05/2012 04:15 PM, Yinghai Lu wrote:
>>>
>>
>> I don't see why that isn't the right fix.  We copy the data into
>> boot_params early in the boot; that *is* the official copy as far as the
>> kernel is concerned.
>>
>> So this patch very much seems like The Right Thing.
>
> it moves boot_params from __initdata  to data.

   should be from __initdata to bss

> and just for using pointer to setup_data.
>
> should add setup_data pointer instead. so will not waste (4096 - 8) bytes.
>
> Yinghai
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