Re: [PATCH linux-next (v3) 1/3] MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure

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On 11/12/15 23:29, Jonas Gorski wrote:
> On Fri, Dec 11, 2015 at 11:24 PM, Simon Arlott <simon@xxxxxxxxxxx> wrote:
>> On 11/12/15 22:02, Jonas Gorski wrote:
>>> On Fri, Dec 11, 2015 at 10:54 PM, Simon Arlott <simon@xxxxxxxxxxx> wrote:
>>>> Broadcom BCM963xx boards have multiple nvram variants across different
>>>> SoCs with additional checksum fields added whenever the size of the
>>>> nvram was extended.
>>>>
>>>> Add this structure as a header file so that multiple drivers and userspace
>>>> can use it.
>>>>
>>>> Signed-off-by: Simon Arlott <simon@xxxxxxxxxxx>
>>>> ---
>>>> v3: Fix includes/type names, add comments explaining the nvram struct.
>>>>
>>>> v2: Use external struct bcm963xx_nvram definition for bcm963268part.
...
>>>> diff --git a/include/uapi/linux/bcm963xx_nvram.h b/include/uapi/linux/bcm963xx_nvram.h
>>>> new file mode 100644
>>>> index 0000000..2dcb307
>>>> --- /dev/null
>>>> +++ b/include/uapi/linux/bcm963xx_nvram.h
>>>
>>> Why uapi? The nvram layout isn't really enforced to be that way, and
>>> at least Huawei uses a modified one on some devices (in case you
>>> wondered why bcm63xx doesn't fail a crc32-"broken" one), so IMHO it
>>> should be kept for in-kernel use only.
>>
>> Because Florian suggested include/uapi/linux/bcm963xx_nvram.h; I could
>> move it to include/linux/ instead if this is preferred.
...
>>>> + * Do not use the __reserved fields, especially not as an offset for CRC
>>>> + * calculations (use BCM963XX_NVRAM_*_SIZE instead). These may be removed or
>>>> + * repositioned.
> 
> Because I just saw that: Nobody will read that. ;p

I'll move this to include/linux/bcm963xx_nvram.h and omit the linux-api
mailing list when I next send the patch series.

-- 
Simon Arlott




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