Re: [RFC][PATCH] x86/cpu/bugs: Consider having old Intel microcode to be a vulnerability

[kernel test robot <lkp@intel.com>]

Hi Dave,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:

[auto build test ERROR on tip/smp/core]
[also build test ERROR on tip/x86/core]
[cannot apply to tip/master driver-core/driver-core-testing driver-core/driver-core-next driver-core/driver-core-linus tip/auto-latest linus/master v6.12-rc6 next-20241107]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Dave-Hansen/x86-cpu-bugs-Consider-having-old-Intel-microcode-to-be-a-vulnerability/20241108-011145
base:   tip/smp/core
patch link:    https://lore.kernel.org/r/20241107170630.2A92B8D3%40davehans-spike.ostc.intel.com
patch subject: [RFC][PATCH] x86/cpu/bugs: Consider having old Intel microcode to be a vulnerability
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20241108/202411080337.HKOT7oZc-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241108/202411080337.HKOT7oZc-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411080337.HKOT7oZc-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/x86/kernel/cpu/common.c:5:
   In file included from include/linux/memblock.h:12:
   In file included from include/linux/mm.h:2232:
   include/linux/vmstat.h:503:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     503 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     504 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:510:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     510 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     511 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:517:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     517 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   include/linux/vmstat.h:523:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     523 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     524 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   In file included from arch/x86/kernel/cpu/common.c:1321:
>> arch/x86/kernel/cpu/microcode/intel-ucode-defs.h:2:1: error: expected '}'
       2 | { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6,  .model = 0x05, .steppings = 0x0001, .driver_data = 0x45 }
         | ^
   arch/x86/kernel/cpu/common.c:1320:44: note: to match this '{'
    1320 | struct x86_cpu_id cpu_latest_microcdoe[] = {
         |                                            ^
   4 warnings and 1 error generated.


vim +2 arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

   > 2	{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6,  .model = 0x05, .steppings = 0x0001, .driver_data = 0x45 }

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