Re: [PATCH 5/6] arm64: errata: Add QCOM_KRYO_5XX_GOLD to the spectre_bhb_k24_list

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

Hi Douglas,

kernel test robot noticed the following build errors:

[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on arm-perf/for-next/perf kvmarm/next soc/for-next arm/for-next arm/fixes linus/master v6.13-rc2 next-20241210]
[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/Douglas-Anderson/arm64-errata-Add-QCOM_KRYO_4XX_GOLD-to-the-spectre_bhb_k24_list/20241210-014833
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
patch link:    https://lore.kernel.org/r/20241209094310.5.I41e227ed809ea607114027209b57d02dc0e98384%40changeid
patch subject: [PATCH 5/6] arm64: errata: Add QCOM_KRYO_5XX_GOLD to the spectre_bhb_k24_list
config: arm64-randconfig-002-20241210 (https://download.01.org/0day-ci/archive/20241210/202412102224.bmEeK15u-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241210/202412102224.bmEeK15u-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/202412102224.bmEeK15u-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/arm64/kernel/proton-pack.c:21:
   In file included from include/linux/bpf.h:21:
   In file included from include/linux/kallsyms.h:13:
   In file included from include/linux/mm.h:2223:
   include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     504 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     505 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     511 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     512 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     524 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     525 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
>> arch/arm64/kernel/proton-pack.c:870:22: error: use of undeclared identifier 'MIDR_QCOM_KRYO_5XX_GOLD'
     870 |                         MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_5XX_GOLD),
         |                                           ^
   4 warnings and 1 error generated.


vim +/MIDR_QCOM_KRYO_5XX_GOLD +870 arch/arm64/kernel/proton-pack.c

   843	
   844	/*
   845	 * This must be called with SCOPE_LOCAL_CPU for each type of CPU, before any
   846	 * SCOPE_SYSTEM call will give the right answer.
   847	 */
   848	u8 spectre_bhb_loop_affected(int scope)
   849	{
   850		u8 k = 0;
   851		static u8 max_bhb_k;
   852	
   853		if (scope == SCOPE_LOCAL_CPU) {
   854			static const struct midr_range spectre_bhb_k32_list[] = {
   855				MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
   856				MIDR_ALL_VERSIONS(MIDR_CORTEX_A78AE),
   857				MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
   858				MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
   859				MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
   860				MIDR_ALL_VERSIONS(MIDR_CORTEX_X2),
   861				MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
   862				MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
   863				{},
   864			};
   865			static const struct midr_range spectre_bhb_k24_list[] = {
   866				MIDR_ALL_VERSIONS(MIDR_CORTEX_A76),
   867				MIDR_ALL_VERSIONS(MIDR_CORTEX_A77),
   868				MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
   869				MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_4XX_GOLD),
 > 870				MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_5XX_GOLD),
   871				{},
   872			};
   873			static const struct midr_range spectre_bhb_k11_list[] = {
   874				MIDR_ALL_VERSIONS(MIDR_AMPERE1),
   875				{},
   876			};
   877			static const struct midr_range spectre_bhb_k8_list[] = {
   878				MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
   879				MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
   880				{},
   881			};
   882	
   883			if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k32_list))
   884				k = 32;
   885			else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k24_list))
   886				k = 24;
   887			else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k11_list))
   888				k = 11;
   889			else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k8_list))
   890				k =  8;
   891	
   892			max_bhb_k = max(max_bhb_k, k);
   893		} else {
   894			k = max_bhb_k;
   895		}
   896	
   897		return k;
   898	}
   899	

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