Re: [PATCH v2] rust: time: New module for timekeeping functions

[Alice Ryhl]

On 7/15/23 03:17, Thomas Gleixner wrote:
> On Fri, Jul 14 2023 at 16:55, Asahi Lina wrote:
> > +ktime_t rust_helper_ktime_get_real(void) {
> > +	return ktime_get_real();
> > +}
> > +EXPORT_SYMBOL_GPL(rust_helper_ktime_get_real);
>
> Colour me confused. But why does this need another export?
>
> This just creates yet another layer of duct tape. If it's unsafe from
> the rust perspective then wrapping it into rust_"unsafe_function" does not
> make it any better.
>
> Why on earth can't you use the actual C interfaces diretly which are
> already exported?

Currently, you can't call inline C functions directly from Rust. So we 
wrap them in non-inline functions for now.

It's something we definitely want to fix, but it hasn't been fixed yet.

Alice