linux-kernel - Re: [PATCH 1/1] of/fdt: simplify early_init_dt

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Date:	Wed, 5 Nov 2014 08:49:15 +0800
From:	leizhen <thunder.leizhen@...wei.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
CC:	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	devicetree <devicetree@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Zefan Li <lizefan@...wei.com>, Xinwei Hu <huxinwei@...wei.com>,
	Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: Re: [PATCH 1/1] of/fdt: simplify early_init_dt_verify

On 2014/11/5 1:03, Bjorn Helgaas wrote:
> On Tue, Nov 4, 2014 at 9:20 AM, Grant Likely <grant.likely@...aro.org> wrote:
>> On Tue, 28 Oct 2014 19:51:05 +0800
>> , Zhen Lei <thunder.leizhen@...wei.com>
>>  wrote:
>>> put off initial_boot_params = params; until all checks finished. If any check
>>> failed, initial_boot_params is equal NULL, base upon bss segment initial value.
>>>
>>> Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
>>
>> Interesting. I received exactly the same patch from Bjorn Helgaas. Were
>> the two of you working together, or is this merely a coincedence?
> 
> LOL, that's really funny.  We're not working together, so it's a total
> coincidence :)
> 
Haha!!!

Hi, Bjorn Helgaas. Nice to meet you.

>>> ---
>>>  drivers/of/fdt.c | 10 ++++------
>>>  1 file changed, 4 insertions(+), 6 deletions(-)
>>>
>>> diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
>>> index d1ffca8..325c638 100644
>>> --- a/drivers/of/fdt.c
>>> +++ b/drivers/of/fdt.c
>>> @@ -994,14 +994,12 @@ bool __init early_init_dt_verify(void *params)
>>>       if (!params)
>>>               return false;
>>>
>>> -     /* Setup flat device-tree pointer */
>>> -     initial_boot_params = params;
>>> -
>>>       /* check device tree validity */
>>> -     if (fdt_check_header(params)) {
>>> -             initial_boot_params = NULL;
>>> +     if (fdt_check_header(params))
>>>               return false;
>>> -     }
>>> +
>>> +     /* Setup flat device-tree pointer */
>>> +     initial_boot_params = params;
>>>
>>>       return true;
>>>  }
>>> --
>>> 1.8.0
>>>
>>>
>>> --
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>>
> 
> .
> 


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