[Bug lto/107014] flatten+lto fails the kernel build

[jirislaby at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107014

--- Comment #6 from Jiri Slaby <jirislaby at gmail dot com> ---
(In reply to Alexander Monakov from comment #5)
> I mean now, about compile time blowup with LTO.

No, LTO is not supported by upstream (yet) ;).

The point is what should I do when submitting the LTO support. Disabling
flatten in the kernel completely does not sound about right. I wanted to
confirm that this is not a compiler issue -- you guys say the function shoots
to its leg by __flatten__.

So thinking about the best approach...