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

From: Thomas Gleixner
Date: Sun Feb 28 2016 - 04:34:13 EST


On Sun, 28 Feb 2016, kbuild test robot wrote:
> Hi Thomas,
>
> FYI, the error/warning still remains.
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 691429e13dfaf5b0994b07cc166db41bd608ee3d
> 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

Again. This commit is just moving code into seperate files without changing
the code. So it's not a new wreckage.

> 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
> ^

NR_IRQS = 0 and CONFIG_SPARSE_IRQ=n is bogus. That alldefconfig of m68k is
broken. Cc'ed m68 folks

Thanks,

tglx