On Mon, 9 Sep 2019, Masahiro Yamada wrote: > Hi Nicolas, > > On Mon, Sep 9, 2019 at 10:48 PM Nicolas Pitre <nico@xxxxxxxxxxx> wrote: > > > > On Mon, 9 Sep 2019, Masahiro Yamada wrote: > > > > > This line was touched by commit f235541699bc ("export.h: allow for > > > per-symbol configurable EXPORT_SYMBOL()"), but the commit log did > > > not explain why. > > > > > > CONFIG_TRIM_UNUSED_KSYMS works for me without defined(__KERNEL__). > > > > I'm pretty sure it was needed back then so not to interfere with users > > of this file. My fault for not documenting it. > > Hmm, I did not see a problem in my quick build test. > > Do you remember which file was causing the problem? If you build commit 7ec925701f5f with CONFIG_TRIM_UNUSED_KSYMS=y and the defined(__KERNEL__) test removed then you'll get: HOSTCC scripts/mod/modpost.o In file included from scripts/mod/modpost.c:24: scripts/mod/../../include/linux/export.h:81:10: fatal error: linux/kconfig.h: No such file or directory Nicolas