linux-kernel - Re: Get rid of cpuinit?

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Message-ID: <CAP=VYLo047g+U3GJhkObJtNPubFNpHuGUJAF7oOh_7dPtSFd9A@mail.gmail.com>
Date:	Tue, 11 Jun 2013 20:31:55 -0400
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Greg KH <greg@...ah.com>, "H. Peter Anvin" <hpa@...or.com>,
	linux-arch <linux-arch@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: Get rid of cpuinit?

On Tue, May 28, 2013 at 5:20 AM, Ingo Molnar <mingo@...nel.org> wote:
>
> * Greg KH <greg@...ah.com> wrote:
>
>> On Mon, May 20, 2013 at 03:35:43PM -0700, H. Peter Anvin wrote:
>> > We have gotten rid of devinit markup.  A recent patch of Linus' makes me
>> > wonder if we similarly should get rid of cpuinit markup?
>> >
>> > Just as with devices, the CPU hotplug machinery has been leveraged to
>> > support a number of pieces of functionality such as suspend, which means
>> > that on anything but the most embedded systems this functionality is
>> > likely needed anyway.
>> >
>> > On x86-64, for an "allyesconfig" build, the total amount of space in all
>> > the .cpu* sections combined is 100K.
>>
>> No objection from me on removing it, it just causes problems from what I
>> can tell.
>
> Indeed, there's a steady trickle of mis-annotated cpuinit sections, and no
> real tooling to make the annotations automatic or so in most of the cases.
> Manual simply does not seem to work in this case.

Is anyone actively working on weeding this out?  If not, it is probably
one of those tree-wide kind of changes that I can volunteer to tackle...

Paul.
--

>
> Thanks,
>
>         Ingo
> --
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