Re: [PATCH] kbuild: rust: add AutoFDO support

[Miguel Ojeda]

On Thu, Mar 19, 2026 at 8:09 PM Gary Guo <gary@xxxxxxxxxxx> wrote:
>
> I don't know if there's an established practice on renaming CONFIG options when
> this sort thing happens though.

Generally, we try to keep users' configs working.

In the past, it was quite painful / pitfall-y to do so, so to make it
easier, the `transitional` keyword was added recently -- a couple
references:

    Documentation/kbuild/kconfig-language.rst

    f9afce4f32e9 ("kconfig: Add transitional symbol attribute for
migration support")

I hope that helps!

Cheers,
Miguel