On Thu, Feb 8, 2018 at 9:19 AM, Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> wrote: > > Should this be checked? > Or, is it just "Don't do it" thing? I think it's probably a "Don't do it". In fact, maybe we should just make it very explicit that you need to re-run "make *config" by hand if you have updated your compiler. So instead of your "run silentoldconfig" if the compiler version has changed, just literally error out and say "compiler has changed, re-run configuration". That way there are no subtle silent failures where you might end up - by mistake - building just modules with a new compiler and different options. Because people would be *aware* of the re-configuration. Anyway, I suspect this is a tiny detail that we don't have to set in stone right now. Maybe worry about it more when/if it actually becomes something that people notice? Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html