acpi: Validate processor id when mapping the processor

When we want to identify whether the proc_id is unreasonable or not, we
can call the "acpi_processor_validate_proc_id" function. It will search
in the duplicate IDs. If we find the proc_id in the IDs, we return true
to the call function. Conversely, the false represents available.

When we establish all possible cpuid <-> nodeid mapping to handle the
cpu hotplugs, we will use the proc_id from ACPI table.

We do validation when we get the proc_id. If the result is true, we
will stop the mapping.

[ tglx: Mark the new function __init ]

Signed-off-by: Dou Liyang <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Cc: [email protected]
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Cc: [email protected]
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Cc: [email protected]
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Cc: [email protected]
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Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>

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