From: Keshavamurthy Anil S <anil.s.keshavamurthy@intel.com>
To: Nathan Lynch <nathanl@austin.ibm.com>
Cc: lkml <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>,
anil.s.keshavamurthy@intel.com
Subject: Re: [PATCH] unexport register_cpu and unregister_cpu
Date: Wed, 26 Jan 2005 10:22:27 -0800 [thread overview]
Message-ID: <20050126102226.A27022@unix-os.sc.intel.com> (raw)
In-Reply-To: <1106722547.9855.36.camel@localhost.localdomain>; from nathanl@austin.ibm.com on Wed, Jan 26, 2005 at 12:55:47AM -0600
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
next prev parent reply other threads:[~2005-01-26 23:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-26 6:55 Nathan Lynch
2005-01-26 18:22 ` Keshavamurthy Anil S [this message]
2005-01-26 19:10 ` Nathan Lynch
2005-01-26 19:26 ` Keshavamurthy Anil S
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