Re: [PATCH v2 4/4] acpi: Move the verification of duplicate proc_id from booting time to hot-plug time

Thomas Gleixner
2017-03-01T11:27:28Z

On Mon, 20 Feb 2017, Dou Liyang wrote:

Please make your subject line short and a precise summary phrase, not an
overlong sentence.

> After we revert the the mapping of "cpuid <-> nodeid" fixed at the
> booting time. and do it at the hot-plug time. we should also do the
> verification of duplicate proc_id at the time.

The revert is completely irrelevant to this change, really. The reference
is just confusing.

> The patch rename the verfication function and move it to
> drivers/acpi::acpi_processor_get_info.

See previous mails ....

Let me give you another changelog example:

Subject: acpi/processor: Check for duplicate processor ids at hotplug time

The check for duplicate processor ids happens at boot time based on the
ACPI table contents, but the final sanity checks for a processor happen
at hotplug time.

At hotplug time, where the physical information is available, which might
differ from the ACPI table information, a check for duplicate processor
ids is missing.

Add it to the hotplug checks and rename the function so it better
reflects its purpose.

Hmm?

>
> -bool __init acpi_processor_validate_proc_id(int proc_id)
> +bool duplicate_processor_id(int proc_id)

Please keep the acpi_ prefix. acpi_duplicate_processor_id().

Thanks,

tglx