[PATCH v10 1/3] arm64: Implement archrandom.h for ARMv8.5-RNG

Will Deacon will at kernel.org
Wed Jan 15 03:16:51 PST 2020


On Wed, Jan 15, 2020 at 11:07:20AM +0000, Mark Brown wrote:
> On Wed, Jan 15, 2020 at 10:24:21AM +0100, Ard Biesheuvel wrote:
> > On Wed, 15 Jan 2020 at 10:16, Will Deacon <will at kernel.org> wrote:
> 
> > > I see your argument, but I was just going on the side of consistency because
> > > we're continuing to expose other features as HWCAPs when the capability is
> > > just a proxy for the cpuid field. I was in favour of stopping the addition
> > > of such HWCAPs years ago, but I couldn't convince Catalin ;)
> 
> > > The way I see it, we'll soon run out of HWCAP2 bits and then we'll have
> > > our hand forced.
> 
> > I don't have a strong opinion either way.
> 
> Me either, or at least not enough to object to doing it - Will?
> Catalin?

Unless we all agree to stop adding new HWCAPs, then I think you may as well
add a new one here (i.e. I don't think this discussion should derail your
work).

Will



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