Re: [PATCH] sched: Work around undefined behavior in sched class checking

[Andi Kleen]

> > Use RELOC_HIDE to make this work. This hides the symbols from gcc,
> > so the optimizer won't make these assumption. I also split
> > the BUG_ONs in multiple.
> 
> Urgh, that insanity again :/ Can't we pretty please get a GCC flag to
> disable that?

Even if that was done (I could totally see the gcc people pushing back on this;
why should they add special flags just for Linux developers not understanding
ISO-C?) you would still need the fix for already shipping compilers.

-Andi