On 17 May 2016 at 09:19, kbuild test robot <fengguang.wu@xxxxxxxxx> wrote: > tree: git://people.freedesktop.org/~airlied/linux.git drm-next > head: 7c10ddf87472c07eabc206e273dc59f77c700858 > commit: cfa7152f1cfeedba7c4ab3abcb4accee94cc2c0f [990/1014] drm/amdgpu: add extern C guard for the UAPI header > config: i386-tinyconfig (attached as .config) > compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430 > reproduce: > git checkout cfa7152f1cfeedba7c4ab3abcb4accee94cc2c0f > # save the attached .config to linux build tree > make ARCH=i386 > > All warnings (new ones prefixed by >>): > >>> ./usr/include/drm/amdgpu_drm.h:38: userspace cannot reference function or variable defined in the kernel > Interesting that target does not execute on my system. Must have something different here. The messages seems bogus, since scripts/headers_check.pl does not expand/evaluate the macros, but blindly checks line by line looking for "extern|unsigned|char|short|int|long|void". We actually removed some of these recently ... yay :-) Quickest solution would be to skip "extern \"C\"", the long term solution is to teach the script to honour/evaluate macros. Leaning towards the latter since my Perl is quite rough.. do we have any Perl experts around willing to make the script smarter ? Thanks Emil _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel