On Fri, Oct 19, 2018 at 1:53 AM Borislav Petkov <bp@xxxxxxxxx> wrote: > > On Fri, Oct 19, 2018 at 01:39:21AM +0900, Masahiro Yamada wrote: > > It is not realistic to enable this warning option by default. > > I believe the question is whether to enable that warning by default in > KBUILD_HOSTCFLAGS. Enabling it by default for the target kernel is of > course, too noisy. That's why it is hidden behind W=2 there. Sorry, I misunderstood the question. The difference about the noisiness between CC and HOSTCC is just comes from the amount of source code. Adding -Wshadow to KBUILD_HOSTCFLAGS emits another warning in Kconfig. Of course, it is easy to fix. But, I just started to think this option is a kind of harsh... -- Best Regards Masahiro Yamada