Build error: kvm/reset.c

[christoffer.dall@linaro.org (Christoffer Dall)]

On Mon, Aug 19, 2013 at 10:07:20PM +0100, Russell King - ARM Linux wrote:
> On Mon, Aug 19, 2013 at 01:54:42PM -0700, Christoffer Dall wrote:
> > On Thu, Aug 15, 2013 at 12:41:50PM +0100, Russell King - ARM Linux wrote:
> > > Last night's omap4430-sdp randconfig failed with this error in the KVM code:
> > > 
> > > arch/arm/kvm/reset.c:43:2: error: unknown field 'irq' specified in initializer
> > > 
> > > Configs etc at http://www.arm.linux.org.uk/developer/build/
> > > 
> > > Tree is my tip plus arm-soc tip plus Linus' tip.
> > 
> > 
> > hmmm, I'm wondering if this is actually related to:
> > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10676
> > 
> > Can you tell me which GCC version you are using?
> 
> 4.5.4.
> 
> > I have been unable to reproduce this in any way (unfortunately it seems
> > the randconfig generating this error is also not available anymore), but
> > this patch may solve the issue:
> > 
> > diff --git a/arch/arm/kvm/reset.c b/arch/arm/kvm/reset.c
> > index b7840e7..71e08ba 100644
> > --- a/arch/arm/kvm/reset.c
> > +++ b/arch/arm/kvm/reset.c
> > @@ -40,7 +40,7 @@ static struct kvm_regs a15_regs_reset = {
> >  };
> >  
> >  static const struct kvm_irq_level a15_vtimer_irq = {
> > -	.irq = 27,
> > +	{ .irq = 27 },
> >  	.level = 1,
> >  };
> 
> Yes, that appears to fix it with the test I just tried:
> 
> struct kvm_irq_level {
>         union {
>                 unsigned irq;
>                 int status;
>         };
>         unsigned level;
> };
> 
> const struct kvm_irq_level a15_vtimer_irq = {
>         { .irq = 15, },
>         .level = 1,
> };
> 
> produces:
> 
> a15_vtimer_irq:
> 	.word	15
> 	.word	1
> 
> which is correct.

Thanks,
I'll queue this patch.

-Christoffer