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

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Message-ID: <20150311183512.GI25035@wotan.suse.de>
Date:	Wed, 11 Mar 2015 19:35:12 +0100
From:	"Luis R. Rodriguez" <mcgrof@...e.com>
To:	David Rientjes <rientjes@...gle.com>
Cc:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>, 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,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [RFC v1 2/2] x86: kconfig: remove UP [IO]APIC options

On Tue, Mar 10, 2015 at 05:58:27PM -0700, David Rientjes wrote:
> 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").

OK thanks yeah I see that now, yeah this can be simplified further, will
send a follow up based on top of these two.

 Luis
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