On Fri, Oct 5, 2018 at 10:35 AM Arnd Bergmann <arnd@xxxxxxxx> wrote: > > Building any configuration with 'make W=1' produces a warning: > > kernel/bounds.c:16:6: warnign: no previous prototype for 'foo' [-Wmissing-prototypes] > > When also passing -Werror, this prevents us from building any > other files. Nobody ever calls the function, but we can't make > it 'static' either since we want the compiler output. > > Calling it 'main' instead however avoids the warning, because gcc > does not insist on having a declaration for main. I think marking the function as static __used should do the trick and would be less confusing. Cheers, Miguel