On Wed, Mar 6, 2019 at 3:43 AM kbuild test robot <l...@intel.com> wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/asm > head: a0bf7fc24303a538396aa8d32450d05c1929b9f0 > commit: d309ba034fac1a149d00cac79318973e9ba81848 [2/4] x86/asm: Pin sensitive > CR0 bits > config: um-x86_64_defconfig (attached as .config) > compiler: gcc-8 (Debian 8.3.0-2) 8.3.0 > reproduce: > git checkout d309ba034fac1a149d00cac79318973e9ba81848 > # save the attached .config to linux build tree > make ARCH=um SUBARCH=x86_64
Gah, I did not build-test um. :( > > All errors (new ones prefixed by >>): > > In file included from arch/x86/include/asm/cacheflush.h:7, > from include/linux/highmem.h:12, > from net//core/sock.c:117: > arch/x86/include/asm/special_insns.h: In function 'native_write_cr0': > >> arch/x86/include/asm/special_insns.h:31:9: error: 'X86_CR0_WP' undeclared > >> (first use in this function) > val |= X86_CR0_WP; > ^~~~~~~~~~ Should I just add something like: #ifdef __arch_um__ # define X86_CR0_WP 0 #endif ? -- Kees Cook
