linux-kernel - Re: kernel/irq/irqdesc.c:206:2: error: array index in initializer exceeds array bounds

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Date:	Tue, 8 Mar 2016 11:09:43 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	kbuild test robot <fengguang.wu@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"kbuild-all@...org" <kbuild-all@...org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: kernel/irq/irqdesc.c:206:2: error: array index in initializer
 exceeds array bounds

Hi Ingo,

On Tue, Mar 8, 2016 at 10:21 AM, Ingo Molnar <mingo@...nel.org> wrote:
>> Same comment as before: thou shall not compile kernels for m68k without
>> selecting any platform support.
>
> That should be enforced at the Kconfig level.

I'm fully aware of that ;-)

Unfortunately it's not trivial.
How do you enforce that at least one option from a list of options is enabled?

M68k (with MMU) supports three distinct classes of machines:
  1. Coldfire (with Coldfire MMU)
  2. Sun-3 (with Sun-3 MMU)
  3. Rest (with classic Motorola MMU)

Class 3 contains multiple machine types (cfr. top of arch/m68k/Kconfig.machine)
and at least one of them must be selected.
So far everything I tried conflicted with enforcing the 3 distinct classes.

For nommu, it's simpler, as you can typically support a single platform only,
due to the different platforms (usually) having RAM at different addresses.

Suggestions are welcome....

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds