linux-kernel - [intel-tdx:tdx/guest-rebased 118/133] arch/x86/kernel/acpi/boot.c:1160: undefined reference to `swiotlb_hint

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Date:   Fri, 14 Jan 2022 06:44:15 +0800
From:   kernel test robot <lkp@...el.com>
To:     Andi Kleen <ak@...ux.intel.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: [intel-tdx:tdx/guest-rebased 118/133]
 arch/x86/kernel/acpi/boot.c:1160: undefined reference to `swiotlb_hint_cpus'

tree:   https://github.com/intel/tdx.git tdx/guest-rebased
head:   e3995864d37c56f431c93fc3dc454d9c65f5e9ea
commit: 8c696e48187c5ffa881e639e1108622debbe6741 [118/133] swiotlb: Split up single swiotlb lock
config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220114/202201140642.CNEqitYj-lkp@intel.com/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/8c696e48187c5ffa881e639e1108622debbe6741
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx tdx/guest-rebased
        git checkout 8c696e48187c5ffa881e639e1108622debbe6741
        # save the config file 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@...el.com>

All errors (new ones prefixed by >>):

   ld: arch/x86/kernel/acpi/boot.o: in function `acpi_parse_madt_lapic_entries':
>> arch/x86/kernel/acpi/boot.c:1160: undefined reference to `swiotlb_hint_cpus'


vim +1160 arch/x86/kernel/acpi/boot.c

  1118	
  1119	static int __init acpi_parse_madt_lapic_entries(void)
  1120	{
  1121		int count;
  1122		int x2count = 0;
  1123		int ret;
  1124		struct acpi_subtable_proc madt_proc[2];
  1125	
  1126		if (!boot_cpu_has(X86_FEATURE_APIC))
  1127			return -ENODEV;
  1128	
  1129		count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC,
  1130					      acpi_parse_sapic, MAX_LOCAL_APIC);
  1131	
  1132		if (!count) {
  1133			memset(madt_proc, 0, sizeof(madt_proc));
  1134			madt_proc[0].id = ACPI_MADT_TYPE_LOCAL_APIC;
  1135			madt_proc[0].handler = acpi_parse_lapic;
  1136			madt_proc[1].id = ACPI_MADT_TYPE_LOCAL_X2APIC;
  1137			madt_proc[1].handler = acpi_parse_x2apic;
  1138			ret = acpi_table_parse_entries_array(ACPI_SIG_MADT,
  1139					sizeof(struct acpi_table_madt),
  1140					madt_proc, ARRAY_SIZE(madt_proc), MAX_LOCAL_APIC);
  1141			if (ret < 0) {
  1142				pr_err("Error parsing LAPIC/X2APIC entries\n");
  1143				return ret;
  1144			}
  1145	
  1146			count = madt_proc[0].count;
  1147			x2count = madt_proc[1].count;
  1148		}
  1149		if (!count && !x2count) {
  1150			pr_err("No LAPIC entries present\n");
  1151			/* TBD: Cleanup to allow fallback to MPS */
  1152			return -ENODEV;
  1153		} else if (count < 0 || x2count < 0) {
  1154			pr_err("Error parsing LAPIC entry\n");
  1155			/* TBD: Cleanup to allow fallback to MPS */
  1156			return count;
  1157		}
  1158	
  1159		/* This does not take overrides into consideration */
> 1160		swiotlb_hint_cpus(max(count, x2count));
  1161	
  1162		x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC_NMI,
  1163						acpi_parse_x2apic_nmi, 0);
  1164		count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI,
  1165					      acpi_parse_lapic_nmi, 0);
  1166		if (count < 0 || x2count < 0) {
  1167			pr_err("Error parsing LAPIC NMI entry\n");
  1168			/* TBD: Cleanup to allow fallback to MPS */
  1169			return count;
  1170		}
  1171		return 0;
  1172	}
  1173	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org