On Fri, Jul 19, 2019 at 11:19:15AM +0900, Masahiro Yamada wrote: > I started to think > compiling all headers is more painful than useful. > > > MW is closing, so I am thinking of disabling it for now > to take time to re-think. For now this seems like the best idea. In the long run maybe we can limit the tests to certain configs, e.g. headers-$(CONFIG_IOMAP) += iomap.h in include/linux/Kbuild and base it off that?