On Tue, 10 Mar 2015, Luis R. Rodriguez wrote:
> From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx>
>
> 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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