[PATCH] arm64/sme: Always initialise TPIDR2 storage

[Mark Brown]

On Fri, Jul 01, 2022 at 03:40:43PM +0100, Will Deacon wrote:
> On Fri, Jul 01, 2022 at 12:34:09PM +0100, Mark Brown wrote:

> > +		else
> > +			p->thread.tpidr2_el0 = 0;

> Why is this needed? If !system_supports_tpidr2(), then we'll just copy the
> tpidr2_el0 field from the parent. Given that INIT_THREAD defines this to be
> zero, then it looks like it should all work out.

> What am I missing?

It should be redundant, I just had to check harder than I liked
that there wasn't a path where we could get it wrong.
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