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* [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'?
@ 2022-03-29 14:23 kernel test robot
  2022-03-30 10:23 ` Borislav Petkov
  0 siblings, 1 reply; 2+ messages in thread
From: kernel test robot @ 2022-03-29 14:23 UTC (permalink / raw)
  To: Borislav Petkov
  Cc: kbuild-all, GNU/Weeb Mailing List, linux-kernel, Kees Cook

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/[email protected]/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 <[email protected]>

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	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2022-03-29 14:23 [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'? kernel test robot
2022-03-30 10:23 ` Borislav Petkov

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