linux-kernel - Re: [RFC v1 2/2] x86: kconfig: remove UP [IO]APIC options

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Message-ID: <alpine.DEB.2.10.1503101756460.26407@chino.kir.corp.google.com>
Date:	Tue, 10 Mar 2015 17:58:27 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
cc:	bhelgaas@...gle.com, mingo@...hat.com, tglx@...utronix.de,
	hpa@...or.com, pure.logic@...us-software.ie, jgross@...e.com,
	luto@...capital.net, andy.shevchenko@...il.com,
	thomas.petazzoni@...e-electrons.com, JBeulich@...e.com, bp@...e.de,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	x86@...nel.org, "Luis R. Rodriguez" <mcgrof@...e.com>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [RFC v1 2/2] x86: kconfig: remove UP [IO]APIC options

On Tue, 10 Mar 2015, Luis R. Rodriguez wrote:

> From: "Luis R. Rodriguez" <mcgrof@...e.com>
> 
> These were here mostly to help as wrappers for PCI_MSI
> under certain UP 32-bit build scenarios, now that PCI_MSI
> properly selects what it needs and when it needs it these
> Kconfig options are now only enabling users reduce the size
> of 32-bit kernels optionally. Since 32-bit kernels are not
> in a huge state of flux and since there is no penalty for
> adding APIC support other than a bit of size moving forward
> we simply expect folks to enable APIC options on 32-bit systems
> when a system needs it, as with PCI_MSI. This lets us remove
> clutter from the x86 Kconfig file.
> 

Check out Linus's latest tree at 
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and see 
how it looks after commit 50849eefea3b ("x86/Kconfig: Simplify X86_UP_APIC 
handling") and commit b1da1e715d4f ("x86/Kconfig: Simplify X86_IO_APIC 
dependencies").
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