Hi Piotr, [auto build test ERROR on next-20160310] [cannot apply to tip/x86/core xen-tip/linux-next v4.5-rc7 v4.5-rc6 v4.5-rc5 v4.5-rc7] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Piotr-Henryk-Dabrowski/cpu-command-line-parmeter-SYS_cpuid-sys-call-kernel-adjusted-CPUID/20160311-081546 config: i386-tinyconfig (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): arch/x86/kernel/cpu/common.c: In function 'print_forcefully_ignored_caps': >> arch/x86/kernel/cpu/common.c:172:8: error: 'x86_cap_flags' undeclared (first use in this function) if (x86_cap_flags[bit] != NULL) ^ arch/x86/kernel/cpu/common.c:172:8: note: each undeclared identifier is reported only once for each function it appears in arch/x86/kernel/cpu/common.c: In function 'setup_forcefully_ignore_caps': arch/x86/kernel/cpu/common.c:224:7: error: 'x86_cap_flags' undeclared (first use in this function) if (x86_cap_flags[bit] != NULL) { ^ vim +/x86_cap_flags +172 arch/x86/kernel/cpu/common.c 166 167 buf[0] = '\0'; 168 for (bit = 0; bit < 32 * NCAPINTS; bit++) 169 { 170 if (test_bit(bit, (unsigned long *)forcefully_ignored_caps)) { 171 int len = strlen(buf); > 172 if (x86_cap_flags[bit] != NULL) 173 snprintf(buf + len, sizeof(buf) - len, 174 " %s", x86_cap_flags[bit]); 175 else --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation