tree: https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git x86/vt-d head: 31a75cbbb9274cf8185f402904bf11386917870b commit: 933fcd01e97e2ba29880dd5f1239365e40094950 [10/12] iommu/vt-d: Add iotlb_sync_map callback config: x86_64-rhel-8.3 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git/commit/?id... git remote add iommu https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git git fetch --no-tags iommu x86/vt-d git checkout 933fcd01e97e2ba29880dd5f1239365e40094950 # save the attached .config to linux build tree make W=1 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 >>): 5468 | .iotlb_sync_map = intel_iommu_iotlb_sync_map, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/intel/iommu.c:5468:21: note: (near initialization for 'intel_iommu_ops.iotlb_sync_map') cc1: some warnings being treated as errors vim +5468 drivers/iommu/intel/iommu.c 5455 5456 const struct iommu_ops intel_iommu_ops = { 5457 .capable = intel_iommu_capable, 5458 .domain_alloc = intel_iommu_domain_alloc, 5459 .domain_free = intel_iommu_domain_free, 5460 .domain_get_attr = intel_iommu_domain_get_attr, 5461 .domain_set_attr = intel_iommu_domain_set_attr, 5462 .attach_dev = intel_iommu_attach_device, 5463 .detach_dev = intel_iommu_detach_device, 5464 .aux_attach_dev = intel_iommu_aux_attach_device, 5465 .aux_detach_dev = intel_iommu_aux_detach_device, 5466 .aux_get_pasid = intel_iommu_aux_get_pasid, 5467 .map = intel_iommu_map, 5469 .unmap = intel_iommu_unmap, 5470 .flush_iotlb_all = intel_flush_iotlb_all, 5471 .iotlb_sync = intel_iommu_tlb_sync, 5472 .iova_to_phys = intel_iommu_iova_to_phys, 5473 .probe_device = intel_iommu_probe_device, 5474 .probe_finalize = intel_iommu_probe_finalize, 5475 .release_device = intel_iommu_release_device, 5476 .get_resv_regions = intel_iommu_get_resv_regions, 5477 .put_resv_regions = generic_iommu_put_resv_regions, 5478 .device_group = intel_iommu_device_group, 5479 .dev_has_feat = intel_iommu_dev_has_feat, 5480 .dev_feat_enabled = intel_iommu_dev_feat_enabled, 5481 .dev_enable_feat = intel_iommu_dev_enable_feat, 5482 .dev_disable_feat = intel_iommu_dev_disable_feat, 5483 .is_attach_deferred = intel_iommu_is_attach_deferred, 5484 .def_domain_type = device_def_domain_type, 5485 .pgsize_bitmap = INTEL_IOMMU_PGSIZES, 5486 #ifdef CONFIG_INTEL_IOMMU_SVM 5487 .cache_invalidate = intel_iommu_sva_invalidate, 5488 .sva_bind_gpasid = intel_svm_bind_gpasid, 5489 .sva_unbind_gpasid = intel_svm_unbind_gpasid, 5490 .sva_bind = intel_svm_bind, 5491 .sva_unbind = intel_svm_unbind, 5492 .sva_get_pasid = intel_svm_get_pasid, 5493 .page_response = intel_svm_page_response, 5494 #endif 5495 }; 5496 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org