[PATCH 3/4] print: use new #[export] macro for rust_fmt_argument

[Andreas Hindborg]

"Alice Ryhl" <aliceryhl at google.com> writes:

> This moves the rust_fmt_argument function over to use the new #[export]
> macro, which will verify at compile-time that the function signature
> matches what is in the header file.
>
> Signed-off-by: Alice Ryhl <aliceryhl at google.com>


Reviewed-by: Andreas Hindborg <a.hindborg at kernel.org>


Best regards,
Andreas Hindborg