Re: LLVM 22 needs bindgen 0.72.1

Hey Miguel!

On Sun, Jul 19, 2026 at 2:18 PM Miguel Ojeda
<[email protected]> wrote:
> > Updating the toolchains would be nice.
>
> Wait, we don't ship `bindgen` yet in those, no?
>
> i.e. we discussed doing so some time ago, if I recall correctly, but
> it is not the case yet.
>
> Or do you mean something else?
>
> I guess you used the instructions which pick the minimum `bindgen`.

Yes, exactly. I followed the instructions at the bottom of
https://mirrors.edge.kernel.org/pub/tools/llvm/rust/ , specifically:

cargo install --locked --root $llvm_prefix --version
$(scripts/min-tool-version.sh bindgen) bindgen-cli

> Maybe we could add a note there, or simply remove `--version` to
> suggest the latest (which could also be good so that more people test
> the latest).

I also think --latest would be a good default choice.

> > I think we can easily add a
> > check on `rust_is_available.sh` like e.g. the one I had before commit:
> >
> >   ae64324ad5c1 ("rust: rust_is_available: remove warning for `bindgen`
> > < 0.69.5 && libclang >= 19.1")
> >
> > I will do that.
>
> Done:
>
>   https://lore.kernel.org/rust-for-linux/[email protected]/
>

Thanks for taking care of this!

Cheers,
-- Burak