tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git devicemsi head: 67d94e5e316843b1af2b0c4cf5d4f8e9a91d97b4 commit: c788f3e806861afdef54db59dc5be9afb5bc906f [18/38] x86/irq: Initialize PCI/MSI domain at PCI init time config: x86_64-randconfig-a005-20200820 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project b587ca93be114d07ec3bf654add97d7872325281) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git checkout c788f3e806861afdef54db59dc5be9afb5bc906f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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 >>): .create_pci_msi_domain = native_create_pci_msi_domain, ^ 1 error generated. # https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git/commit/?id... git remote add tglx-devel https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git git fetch --no-tags tglx-devel devicemsi git checkout c788f3e806861afdef54db59dc5be9afb5bc906f vim +/native_create_pci_msi_domain +80 arch/x86/kernel/x86_init.c 62 63 .resources = { 64 .probe_roms = probe_roms, 65 .reserve_resources = reserve_standard_io_resources, 66 .memory_setup = e820__memory_setup_default, 67 }, 68 69 .mpparse = { 70 .setup_ioapic_ids = x86_init_noop, 71 .find_smp_config = default_find_smp_config, 72 .get_smp_config = default_get_smp_config, 73 }, 74 75 .irqs = { 76 .pre_vector_init = init_ISA_irqs, 77 .intr_init = native_init_IRQ, 78 .intr_mode_select = apic_intr_mode_select, 79 .intr_mode_init = apic_intr_mode_init, 81 }, 82 83 .oem = { 84 .arch_setup = x86_init_noop, 85 .banner = default_banner, 86 }, 87 88 .paging = { 89 .pagetable_init = native_pagetable_init, 90 }, 91 92 .timers = { 93 .setup_percpu_clockev = setup_boot_APIC_clock, 94 .timer_init = hpet_time_init, 95 .wallclock_init = x86_wallclock_init, 96 }, 97 98 .iommu = { 99 .iommu_init = iommu_init_noop, 100 }, 101 102 .pci = { 103 .init = x86_default_pci_init, 104 .init_irq = x86_default_pci_init_irq, 105 .fixup_irqs = x86_default_pci_fixup_irqs, 106 }, 107 108 .hyper = { 109 .init_platform = x86_init_noop, 110 .guest_late_init = x86_init_noop, 111 .x2apic_available = bool_x86_init_noop, 112 .init_mem_mapping = x86_init_noop, 113 .init_after_bootmem = x86_init_noop, 114 }, 115 116 .acpi = { 117 .set_root_pointer = x86_default_set_root_pointer, 118 .get_root_pointer = x86_default_get_root_pointer, 119 .reduced_hw_early_init = acpi_generic_reduced_hw_init, 120 }, 121 }; 122 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org