tree: https://github.com/intel/tdx.git guest head: 41fe88a1b3c28543f49fa6ed9e0e9b6650ed7614 commit: 4529b5784c141782c72ec9bd9a92df2b68cb7d45 [129/144] swiotlb: Split up single swiotlb lock config: i386-randconfig-a012-20211116 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/intel/tdx/commit/4529b5784c141782c72ec9bd9a92df2b68cb7d45 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx guest git checkout 4529b5784c141782c72ec9bd9a92df2b68cb7d45 # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): ld: arch/x86/kernel/acpi/boot.o: in function `acpi_parse_madt_lapic_entries': vim +1134 arch/x86/kernel/acpi/boot.c 1092 1093 static int __init acpi_parse_madt_lapic_entries(void) 1094 { 1095 int count; 1096 int x2count = 0; 1097 int ret; 1098 struct acpi_subtable_proc madt_proc[2]; 1099 1100 if (!boot_cpu_has(X86_FEATURE_APIC)) 1101 return -ENODEV; 1102 1103 count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, 1104 acpi_parse_sapic, MAX_LOCAL_APIC); 1105 1106 if (!count) { 1107 memset(madt_proc, 0, sizeof(madt_proc)); 1108 madt_proc[0].id = ACPI_MADT_TYPE_LOCAL_APIC; 1109 madt_proc[0].handler = acpi_parse_lapic; 1110 madt_proc[1].id = ACPI_MADT_TYPE_LOCAL_X2APIC; 1111 madt_proc[1].handler = acpi_parse_x2apic; 1112 ret = acpi_table_parse_entries_array(ACPI_SIG_MADT, 1113 sizeof(struct acpi_table_madt), 1114 madt_proc, ARRAY_SIZE(madt_proc), MAX_LOCAL_APIC); 1115 if (ret < 0) { 1116 pr_err("Error parsing LAPIC/X2APIC entries\n"); 1117 return ret; 1118 } 1119 1120 count = madt_proc[0].count; 1121 x2count = madt_proc[1].count; 1122 } 1123 if (!count && !x2count) { 1124 pr_err("No LAPIC entries present\n"); 1125 /* TBD: Cleanup to allow fallback to MPS */ 1126 return -ENODEV; 1127 } else if (count < 0 || x2count < 0) { 1128 pr_err("Error parsing LAPIC entry\n"); 1129 /* TBD: Cleanup to allow fallback to MPS */ 1130 return count; 1131 } 1132 1133 /* This does not take overrides into consideration */ 1135 1136 x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC_NMI, 1137 acpi_parse_x2apic_nmi, 0); 1138 count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, 1139 acpi_parse_lapic_nmi, 0); 1140 if (count < 0 || x2count < 0) { 1141 pr_err("Error parsing LAPIC NMI entry\n"); 1142 /* TBD: Cleanup to allow fallback to MPS */ 1143 return count; 1144 } 1145 return 0; 1146 } 1147 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org