Re: [PATCH] unexport register_cpu and unregister_cpu

[Keshavamurthy Anil S]

On Wed, Jan 26, 2005 at 12:55:47AM -0600, Nathan Lynch wrote:
> http://linus.bkbits.net:8080/linux-2.5/cset@4180a2b7mi2fzuNQDBOQY7eMAkns8g?nav=index.html|src/|src/drivers|src/drivers/base|related/drivers/base/cpu.c
> 
> This changeset introduced exports for register_cpu and unregister_cpu
> right after 2.6.10.  As far as I can tell these are not called from any
> code which can be built as a module, and I can't think of a good reason
> why any out of tree code would use them.  Unless I've missed something,
> can we remove them before 2.6.11?

	No this is not correct. ACPI processor.ko driver which supports
physical CPU hotplug needs register_cpu() and unregister_cpu() functions
for dynamically hotadd/hotremove support of the processors.

Please see drivers/acpi/processor_core.c  
	acpi_processor_hotadd_init() -> arch_register_cpu() ->
		->register_cpu().

-Anil


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