Re: [PATCH v2 00/21] arm64: Move overflow sp into SP_EL1 and kernel sp into SP_EL0

[Linus Walleij]

On Thu, Oct 1, 2026 at 11:01 AM Muhammad Usama Anjum
<usama.anjum@xxxxxxx> wrote:
> On 01/10/2026 8:21 am, Will Deacon wrote:
> > On Wed, Sep 30, 2026 at 11:42:51PM +0200, Linus Walleij wrote:

> >> Hopefully Usama can test just that part and see if it has a lesser
> >> performance impact as well.
> >
> > I'd like to see those numbers at various points during the series, tbh,
> > so we can rule out any stack-protector changes etc.
>
> Sure, I can trigger runs on different points if you can mention which would be
> more valuable.

I would say comparison after applying 1 thru
- patch 12
- patch 14
- patch 18 and
- all patches

would be interesting to see. Will do you agree?

Yours,
Linus Walleij