Messages in this thread | | | Date | Tue, 29 Mar 2022 22:23:07 +0800 | From | kernel test robot <> | Subject | [ammarfaizi2-block:bp/bp/rc0+ 6/11] arch/x86/kernel/cpu/common.c:1415:10: error: 'x86_cap_flags' undeclared; did you mean 'x86_cap_flag'? |
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tree: https://github.com/ammarfaizi2/linux-block bp/bp/rc0+ head: 2d784fc7295963360594f3de64446aa32841c694 commit: c3b9dcd01973935375ca9d0c67044bea7333d4ef [6/11] x86/cpu: Allow feature bit names from /proc/cpuinfo in clearcpuid= config: i386-tinyconfig (https://download.01.org/0day-ci/archive/20220329/202203292206.ICsY2RKX-lkp@intel.com/config) compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0 reproduce (this is a W=1 build): # https://github.com/ammarfaizi2/linux-block/commit/c3b9dcd01973935375ca9d0c67044bea7333d4ef git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block bp/bp/rc0+ git checkout c3b9dcd01973935375ca9d0c67044bea7333d4ef # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/cpu/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
arch/x86/kernel/cpu/common.c: In function 'cpu_parse_early_param': >> arch/x86/kernel/cpu/common.c:1415:10: error: 'x86_cap_flags' undeclared (first use in this function); did you mean 'x86_cap_flag'? 1415 | if (!x86_cap_flags[bit]) | ^~~~~~~~~~~~~ | x86_cap_flag arch/x86/kernel/cpu/common.c:1415:10: note: each undeclared identifier is reported only once for each function it appears in
vim +1415 arch/x86/kernel/cpu/common.c
1385 1386 if (cmdline_find_option_bool(boot_command_line, "noxsave")) 1387 setup_clear_cpu_cap(X86_FEATURE_XSAVE); 1388 1389 if (cmdline_find_option_bool(boot_command_line, "noxsaveopt")) 1390 setup_clear_cpu_cap(X86_FEATURE_XSAVEOPT); 1391 1392 if (cmdline_find_option_bool(boot_command_line, "noxsaves")) 1393 setup_clear_cpu_cap(X86_FEATURE_XSAVES); 1394 1395 arglen = cmdline_find_option(boot_command_line, "clearcpuid", arg, sizeof(arg)); 1396 if (arglen <= 0) 1397 return; 1398 1399 pr_info("Clearing CPUID bits:"); 1400 1401 while (argptr) { 1402 bool found __maybe_unused = false; 1403 unsigned int bit; 1404 1405 opt = strsep(&argptr, ","); 1406 1407 /* 1408 * Handle naked numbers first for feature flags which don't 1409 * have names. 1410 */ 1411 if (!kstrtouint(opt, 10, &bit)) { 1412 if (bit < NCAPINTS * 32) { 1413 1414 /* empty-string, i.e., ""-defined feature flags */ > 1415 if (!x86_cap_flags[bit]) 1416 pr_cont(" " X86_CAP_FMT_NUM, x86_cap_flag_num(bit)); 1417 else 1418 pr_cont(" " X86_CAP_FMT, x86_cap_flag(bit)); 1419 1420 setup_clear_cpu_cap(bit); 1421 taint++; 1422 } 1423 /* 1424 * The assumption is that there are no feature names with only 1425 * numbers in the name thus go to the next argument. 1426 */ 1427 continue; 1428 } 1429
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