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SubjectRe: [PATCH v2] EDAC, mellanox: Add ECC support for BlueField DDR4
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On 3/21/19 7:30 AM, Junhan Zhou wrote:
>>> +config EDAC_BLUEFIELD
>>> + tristate "Mellanox BlueField Memory ECC"
>>> + depends on (MELLANOX_PLATFORM && ARM64 && ACPI) ||
>> COMPILE_TEST
>>
>> Hi,
>>
>> While I am in favor of using COMPILE_TEST whenever possible, I don't see
>> how that is possible here if:
>>
>> # MELLANOX_PLATFORM is not set
>> # ARM64 is not set
>> # ACPI is not set
>> COMPILE_TEST=y
>>
>> Can you please explain?
>>
>> Thanks.
>>
>> ~Randy
>
> Good point. I tried compiling it against the x86 architecture and it fails because it can't find the definition for arm_smccc_smc(). But it would compile for the ARM64 architecture with both ACPI and MELLANOX _PLATFORM not set, so I'll change it to ARM64 && ((MELLANOX_PLATFORM && ACPI) || COMPILE_TEST) instead.
> The dependency on ACPI is because our BlueField SoC firmware only uses ACPI to pass the device mappings, and MELLANOX_PLATFORM because this device is only seen on the Mellanox BlueField SoC so it would be pointless to be used elsewhere, but these doesn't prevent it from being compiled.
>
> -Junhan
>

Sounds fine. Thanks.

--
~Randy

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