Re: Rust kernel policy

Christoph Hellwig
2025-02-20T06:33:02Z

On Tue, Feb 18, 2025 at 06:36:55PM +0100, Jiri Kosina wrote:
> > [2] The idea of drivers in eBPF as done by HID also really doesn't help
> > with that as much as I like eBPF for some use cases
>
> I don't necessarily agree on this specific aspect, but what (at least to
> me personally) is the crucial point here -- if we at some point decide
> that HID-eBPF is somehow potentially unhealthy for the project /
> ecosystem, we can just drop it and convert the existing eBPF snippets to a
> proper simple HID bus drivers trivially (I'd even dare to say that to some
> extent perhaps programatically).

Well, Linus declared any bpf kfunc / helper program type change that
breaks userspace as a no-go. And such a change very much does.