Hi Tom, [auto build test ERROR on linus/master] [also build test ERROR on v4.12-rc4 next-20170607] [cannot apply to tip/x86/core] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Tom-Lendacky/x86-Secure-Memory-Encryption-AMD/20170608-104147 config: um-x86_64_defconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=um SUBARCH=x86_64 All errors (new ones prefixed by >>): In file included from arch/x86/include/asm/cacheflush.h:6:0, from include/linux/highmem.h:11, from net/core/sock.c:116: arch/x86/include/asm/special_insns.h: In function 'native_read_cr3_pa': >> arch/x86/include/asm/special_insns.h:239:30: error: 'PHYSICAL_PAGE_MASK' undeclared (first use in this function) return (native_read_cr3() & PHYSICAL_PAGE_MASK); ^~~~~~~~~~~~~~~~~~ arch/x86/include/asm/special_insns.h:239:30: note: each undeclared identifier is reported only once for each function it appears in arch/x86/include/asm/special_insns.h: In function 'read_cr3_pa': arch/x86/include/asm/special_insns.h:244:23: error: 'PHYSICAL_PAGE_MASK' undeclared (first use in this function) return (read_cr3() & PHYSICAL_PAGE_MASK); ^~~~~~~~~~~~~~~~~~ vim +/PHYSICAL_PAGE_MASK +239 arch/x86/include/asm/special_insns.h 233 } 234 235 #define nop() asm volatile ("nop") 236 237 static inline unsigned long native_read_cr3_pa(void) 238 { > 239 return (native_read_cr3() & PHYSICAL_PAGE_MASK); 240 } 241 242 static inline unsigned long read_cr3_pa(void) --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation