[RFC] riscv: Add jump-label implementation

Björn Töpel bjorn.topel at gmail.com
Sat Jul 4 08:09:42 EDT 2020


On Sat, 4 Jul 2020 at 13:35, Emil Renner Berthing <kernel at esmil.dk> wrote:
>
> On Sat, 4 Jul 2020 at 13:23, Björn Töpel <bjorn.topel at gmail.com> wrote:
[...]
> > Indeed. And nice work! Can you respin the patch with the 32b fix
> > above, and also without the RFC tag?
>
> Yes, of course. If you don't mind I'll wait a bit and let this collect
> a bit more comments.
>

Certainly!

> > Curious; Why is [branch ? 1 : 0] needed when coding the boolean into
> > the key pointer (arm64 is just [branch]). Different encoding of
> > booleans (branch in this case)?
>
> No, that was just me being unsure exactly how bool works when used as
> an index. After reading up on it it seems the original code is right,
> you can actually trust that _Bool is either 0 or 1. I'll fix it in the
> next version. Thanks!
>

Cool! Thanks for clearing that up for me!

Cheers,
Björn



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