Hi Robert,

kernel test robot noticed the following build errors:

[auto build test ERROR on 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0]

url:    https://github.com/intel-lab-lkp/linux/commits/Robert-Richter/cxl-hdm-Moving-HDM-specific-code-to-core-hdm-c/20240629-045739
base:   1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0
patch link:    https://lore.kernel.org/r/20240627224615.854162-6-rrichter%40amd.com
patch subject: [PATCH 5/5] cxl/acpi: Enable address translation for Zen4 platforms
config: arm64-allmodconfig
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 326ba38a991250a8587a399a260b0f7af2c9166a)
reproduce (this is a W=1 build):

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/202406291923.sWR3UO7M-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/cxl/acpi.c:7:
   In file included from include/linux/acpi.h:39:
   In file included from include/acpi/acpi_io.h:7:
   In file included from arch/arm64/include/asm/acpi.h:14:
   In file included from include/linux/memblock.h:12:
   In file included from include/linux/mm.h:2253:
   include/linux/vmstat.h:500:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     500 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     501 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:507:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     507 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     508 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     514 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   include/linux/vmstat.h:519:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     519 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     520 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:528:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     528 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     529 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/cxl/acpi.c:545:36: error: call to undeclared function 'boot_cpu_has'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     545 |         return (IS_ENABLED(CONFIG_X86) && boot_cpu_has(X86_FEATURE_ZEN4));
         |                                           ^
>> drivers/cxl/acpi.c:545:49: error: use of undeclared identifier 'X86_FEATURE_ZEN4'
     545 |         return (IS_ENABLED(CONFIG_X86) && boot_cpu_has(X86_FEATURE_ZEN4));
         |                                                        ^
   5 warnings and 2 errors generated.


vim +/boot_cpu_has +545 drivers/cxl/acpi.c

   542	
   543	static bool is_amd_zen4(void)
   544	{
 > 545		return (IS_ENABLED(CONFIG_X86) && boot_cpu_has(X86_FEATURE_ZEN4));
   546	}
   547	

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