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 09:44:57 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	kbuild test robot <fengguang.wu@...el.com>
Cc:	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

On Tue, Mar 8, 2016 at 9:38 AM, kbuild test robot
<fengguang.wu@...el.com> wrote:
> FYI, the error/warning still remains.
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   e2857b8f11a289ed2b61d18d0665e05c1053c446
> commit: 3795de236d67a05994a1a12759db9d4dd9ffc42c genirq: Distangle kernel/irq/handle.c
> date:   5 years ago
> config: m68k-alldefconfig (attached as .config)
> reproduce:
>         wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout 3795de236d67a05994a1a12759db9d4dd9ffc42c
>         # save the attached .config to linux build tree
>         make.cross ARCH=m68k
>
> All errors (new ones prefixed by >>):
>
>    In file included from include/linux/irqnr.h:10:0,
>                     from include/linux/irq.h:22,
>                     from kernel/irq/irqdesc.c:10:
>    arch/m68k/include/asm/irq.h:25:17: error: expected identifier or '(' before numeric constant
>     #define NR_IRQS 0
>                     ^
>    include/linux/irqnr.h:15:19: note: in expansion of macro 'NR_IRQS'
>     #define nr_irqs   NR_IRQS
>                       ^
>    kernel/irq/irqdesc.c:36:5: note: in expansion of macro 'nr_irqs'
>     int nr_irqs = NR_IRQS;
>         ^
>>> kernel/irq/irqdesc.c:206:2: error: array index in initializer exceeds array bounds
>      [0 ... NR_IRQS-1] = {
>      ^

Same comment as before: thou shall not compile kernels for m68k without
selecting any platform support.

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