[PATCH] kselftest/arm64: signal: fix/refactor SVE vector length enumeration

[Dave Martin]

On Tue, Aug 13, 2024 at 01:55:46PM +0100, Andre Przywara wrote:
> On Tue, 13 Aug 2024 12:00:06 +0100
> Mark Brown <broonie at kernel.org> wrote:
> 
> Hi broonie,
> 
> > On Mon, Aug 12, 2024 at 03:09:24PM +0100, Andre Przywara wrote:
> > 
> > > +		/* Did we find the lowest supported VL? */
> > > +		if (use_sme && vq < sve_vq_from_vl(vl))
> > > +			break;  
> > 
> > We don't need the use_sme check here, SVE is just architecturally
> > guaranteed to never trip the && case.  Unless you add a warning for
> > broken implementations I'd just skip it.
> 
> Ah, thanks, I wasn't sure about that, and wanted to mimic the existing
> code as close as possible. Will surely just drop it.
> 
> Thanks,
> Andre

Maybe at least worth a comment?

I was looking at this code the other week, and this puzzled me until I
went and looked back at the architecture.

Cheers
---Dave
>