Hi Nuno, kernel test robot noticed the following build errors: [auto build test ERROR on tip/x86/core] [also build test ERROR on arm64/for-next/core kvm/queue linus/master v6.12-rc1 next-20241004] [cannot apply to kvm/linux-next] [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/Nuno-Das-Neves/hyperv-Move-hv_connection_id-to-hyperv-tlfs-h/20241004-035418 base: tip/x86/core patch link: https://lore.kernel.org/r/1727985064-18362-6-git-send-email-nunodasneves%40linux.microsoft.com patch subject: [PATCH 5/5] hyperv: Use hvhdk.h instead of hyperv-tlfs.h in Hyper-V code config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20241005/202410050921.0o9FH5Ai-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project fef3566a25ff0e34fb87339ba5e13eca17cec00f) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241005/202410050921.0o9FH5Ai-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410050921.0o9FH5Ai-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from arch/arm64/hyperv/mshyperv.c:13: In file included from include/linux/acpi.h:39: In file included from include/acpi/acpi_io.h:7: In file included from arch/arm64/include/asm/acpi.h:14: In file included from include/linux/memblock.h:12: In file included from include/linux/mm.h:2228: include/linux/vmstat.h:500:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 500 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 501 | item]; | ~~~~ include/linux/vmstat.h:507:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 507 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 508 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:519:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 519 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 520 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:528:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 528 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 529 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ >> arch/arm64/hyperv/mshyperv.c:53:19: error: use of undeclared identifier 'HV_REGISTER_FEATURES'; did you mean 'HV_REGISTER_FEATURES_INFO'? 53 | hv_get_vpreg_128(HV_REGISTER_FEATURES, &result); | ^~~~~~~~~~~~~~~~~~~~ | HV_REGISTER_FEATURES_INFO include/hyperv/hvgdk_mini.h:807:2: note: 'HV_REGISTER_FEATURES_INFO' declared here 807 | HV_REGISTER_FEATURES_INFO = 0x00000201, | ^ >> arch/arm64/hyperv/mshyperv.c:58:19: error: use of undeclared identifier 'HV_REGISTER_ENLIGHTENMENTS' 58 | hv_get_vpreg_128(HV_REGISTER_ENLIGHTENMENTS, &result); | ^ 5 warnings and 2 errors generated. vim +53 arch/arm64/hyperv/mshyperv.c 410779d8d81fcf Nuno Das Neves 2024-03-07 30 9bbb888824e38c Michael Kelley 2021-08-04 31 static int __init hyperv_init(void) 9bbb888824e38c Michael Kelley 2021-08-04 32 { 9bbb888824e38c Michael Kelley 2021-08-04 33 struct hv_get_vp_registers_output result; 9bbb888824e38c Michael Kelley 2021-08-04 34 u64 guest_id; 9bbb888824e38c Michael Kelley 2021-08-04 35 int ret; 9bbb888824e38c Michael Kelley 2021-08-04 36 9bbb888824e38c Michael Kelley 2021-08-04 37 /* 9bbb888824e38c Michael Kelley 2021-08-04 38 * Allow for a kernel built with CONFIG_HYPERV to be running in 9bbb888824e38c Michael Kelley 2021-08-04 39 * a non-Hyper-V environment, including on DT instead of ACPI. 9bbb888824e38c Michael Kelley 2021-08-04 40 * In such cases, do nothing and return success. 9bbb888824e38c Michael Kelley 2021-08-04 41 */ 9bbb888824e38c Michael Kelley 2021-08-04 42 if (acpi_disabled) 9bbb888824e38c Michael Kelley 2021-08-04 43 return 0; 9bbb888824e38c Michael Kelley 2021-08-04 44 9bbb888824e38c Michael Kelley 2021-08-04 45 if (strncmp((char *)&acpi_gbl_FADT.hypervisor_id, "MsHyperV", 8)) 9bbb888824e38c Michael Kelley 2021-08-04 46 return 0; 9bbb888824e38c Michael Kelley 2021-08-04 47 9bbb888824e38c Michael Kelley 2021-08-04 48 /* Setup the guest ID */ d5ebde1e2b4615 Li kunyu 2022-09-28 49 guest_id = hv_generate_guest_id(LINUX_VERSION_CODE); b967df6293510b Nuno Das Neves 2024-03-12 50 hv_set_vpreg(HV_REGISTER_GUEST_OS_ID, guest_id); 9bbb888824e38c Michael Kelley 2021-08-04 51 9bbb888824e38c Michael Kelley 2021-08-04 52 /* Get the features and hints from Hyper-V */ 9bbb888824e38c Michael Kelley 2021-08-04 @53 hv_get_vpreg_128(HV_REGISTER_FEATURES, &result); 9bbb888824e38c Michael Kelley 2021-08-04 54 ms_hyperv.features = result.as32.a; 9bbb888824e38c Michael Kelley 2021-08-04 55 ms_hyperv.priv_high = result.as32.b; 9bbb888824e38c Michael Kelley 2021-08-04 56 ms_hyperv.misc_features = result.as32.c; 9bbb888824e38c Michael Kelley 2021-08-04 57 9bbb888824e38c Michael Kelley 2021-08-04 @58 hv_get_vpreg_128(HV_REGISTER_ENLIGHTENMENTS, &result); 9bbb888824e38c Michael Kelley 2021-08-04 59 ms_hyperv.hints = result.as32.a; 9bbb888824e38c Michael Kelley 2021-08-04 60 9bbb888824e38c Michael Kelley 2021-08-04 61 pr_info("Hyper-V: privilege flags low 0x%x, high 0x%x, hints 0x%x, misc 0x%x\n", 9bbb888824e38c Michael Kelley 2021-08-04 62 ms_hyperv.features, ms_hyperv.priv_high, ms_hyperv.hints, 9bbb888824e38c Michael Kelley 2021-08-04 63 ms_hyperv.misc_features); 9bbb888824e38c Michael Kelley 2021-08-04 64 9bbb888824e38c Michael Kelley 2021-08-04 65 ret = hv_common_init(); 9bbb888824e38c Michael Kelley 2021-08-04 66 if (ret) 9bbb888824e38c Michael Kelley 2021-08-04 67 return ret; 9bbb888824e38c Michael Kelley 2021-08-04 68 52ae076c3a9b36 Michael Kelley 2023-05-23 69 ret = cpuhp_setup_state(CPUHP_AP_HYPERV_ONLINE, "arm64/hyperv_init:online", 9bbb888824e38c Michael Kelley 2021-08-04 70 hv_common_cpu_init, hv_common_cpu_die); 9bbb888824e38c Michael Kelley 2021-08-04 71 if (ret < 0) { 9bbb888824e38c Michael Kelley 2021-08-04 72 hv_common_free(); 9bbb888824e38c Michael Kelley 2021-08-04 73 return ret; 9bbb888824e38c Michael Kelley 2021-08-04 74 } 9bbb888824e38c Michael Kelley 2021-08-04 75 f2580a907e5c0e Michael Kelley 2024-03-18 76 ms_hyperv_late_init(); f2580a907e5c0e Michael Kelley 2024-03-18 77 9bbb888824e38c Michael Kelley 2021-08-04 78 hyperv_initialized = true; 9bbb888824e38c Michael Kelley 2021-08-04 79 return 0; 9bbb888824e38c Michael Kelley 2021-08-04 80 } 9bbb888824e38c Michael Kelley 2021-08-04 81 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki