Hi Vadim, kernel test robot noticed the following build errors: [auto build test ERROR on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Vadim-Fedorenko/selftests-bpf-add-selftest-to-check-rdtsc-jit/20241024-050747 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20241023210437.2266063-1-vadfed%40meta.com patch subject: [PATCH bpf-next 1/2] bpf: add bpf_get_hw_counter kfunc config: arm64-randconfig-001-20241024 (https://download.01.org/0day-ci/archive/20241024/202410242310.od2UFxiK-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 5886454669c3c9026f7f27eab13509dd0241f2d6) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241024/202410242310.od2UFxiK-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/202410242310.od2UFxiK-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): In file included from kernel/bpf/helpers.c:4: In file included from include/linux/bpf.h:21: In file included from include/linux/kallsyms.h:13: In file included from include/linux/mm.h:2213: include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 505 | item]; | ~~~~ include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 512 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from kernel/bpf/helpers.c:26: >> arch/arm64/include/asm/vdso/gettimeofday.h:70:21: warning: declaration of 'struct vdso_data' will not be visible outside of this function [-Wvisibility] 70 | const struct vdso_data *vd) | ^ >> arch/arm64/include/asm/vdso/gettimeofday.h:79:20: error: use of undeclared identifier 'VDSO_CLOCKMODE_NONE' 79 | if (clock_mode == VDSO_CLOCKMODE_NONE) | ^ >> arch/arm64/include/asm/vdso/gettimeofday.h:105:9: error: use of undeclared identifier '_vdso_data' 105 | return _vdso_data; | ^ kernel/bpf/helpers.c:115:36: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 115 | .arg2_type = ARG_PTR_TO_MAP_VALUE | MEM_UNINIT, | ~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:128:36: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 128 | .arg2_type = ARG_PTR_TO_MAP_VALUE | MEM_UNINIT, | ~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:539:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 539 | .arg1_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:542:41: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 542 | .arg4_type = ARG_PTR_TO_FIXED_SIZE_MEM | MEM_UNINIT | MEM_ALIGNED, | ~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:567:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 567 | .arg1_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:570:41: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 570 | .arg4_type = ARG_PTR_TO_FIXED_SIZE_MEM | MEM_UNINIT | MEM_ALIGNED, | ~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:583:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 583 | .arg1_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:653:35: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 653 | .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:725:39: warning: bitwise operation between different enumeration types ('enum bpf_return_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 725 | .ret_type = RET_PTR_TO_MEM_OR_BTF_ID | PTR_MAYBE_NULL | MEM_RDONLY, | ~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ kernel/bpf/helpers.c:738:39: warning: bitwise operation between different enumeration types ('enum bpf_return_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 738 | .ret_type = RET_PTR_TO_MEM_OR_BTF_ID | MEM_RDONLY, | ~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:1080:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 1080 | .arg4_type = ARG_PTR_TO_MEM | PTR_MAYBE_NULL | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ kernel/bpf/helpers.c:1641:44: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 1641 | .arg2_type = ARG_PTR_TO_BTF_ID_OR_NULL | OBJ_RELEASE, | ~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~ kernel/bpf/helpers.c:1746:33: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 1746 | .arg4_type = ARG_PTR_TO_DYNPTR | DYNPTR_TYPE_LOCAL | MEM_UNINIT, | ~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:1789:33: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 1789 | .arg3_type = ARG_PTR_TO_DYNPTR | MEM_RDONLY, | ~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:1837:33: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 1837 | .arg1_type = ARG_PTR_TO_DYNPTR | MEM_RDONLY, | ~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:1839:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 1839 | .arg3_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/bpf/helpers.c:1879:33: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 1879 | .arg1_type = ARG_PTR_TO_DYNPTR | MEM_RDONLY, | ~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ 21 warnings and 2 errors generated. vim +/VDSO_CLOCKMODE_NONE +79 arch/arm64/include/asm/vdso/gettimeofday.h 28b1a824a4f44d Vincenzo Frascino 2019-06-21 68 4c5a116ada953b Thomas Gleixner 2020-08-04 69 static __always_inline u64 __arch_get_hw_counter(s32 clock_mode, 4c5a116ada953b Thomas Gleixner 2020-08-04 @70 const struct vdso_data *vd) 28b1a824a4f44d Vincenzo Frascino 2019-06-21 71 { 28b1a824a4f44d Vincenzo Frascino 2019-06-21 72 u64 res; 28b1a824a4f44d Vincenzo Frascino 2019-06-21 73 27e11a9fe2e2e7 Vincenzo Frascino 2019-06-25 74 /* 5e3c6a312a0946 Thomas Gleixner 2020-02-07 75 * Core checks for mode already, so this raced against a concurrent 5e3c6a312a0946 Thomas Gleixner 2020-02-07 76 * update. Return something. Core will do another round and then 5e3c6a312a0946 Thomas Gleixner 2020-02-07 77 * see the mode change and fallback to the syscall. 27e11a9fe2e2e7 Vincenzo Frascino 2019-06-25 78 */ 5e3c6a312a0946 Thomas Gleixner 2020-02-07 @79 if (clock_mode == VDSO_CLOCKMODE_NONE) 5e3c6a312a0946 Thomas Gleixner 2020-02-07 80 return 0; 27e11a9fe2e2e7 Vincenzo Frascino 2019-06-25 81 27e11a9fe2e2e7 Vincenzo Frascino 2019-06-25 82 /* 9025cebf12d176 Joey Gouly 2022-08-30 83 * If FEAT_ECV is available, use the self-synchronizing counter. 9025cebf12d176 Joey Gouly 2022-08-30 84 * Otherwise the isb is required to prevent that the counter value 27e11a9fe2e2e7 Vincenzo Frascino 2019-06-25 85 * is speculated. 27e11a9fe2e2e7 Vincenzo Frascino 2019-06-25 86 */ 9025cebf12d176 Joey Gouly 2022-08-30 87 asm volatile( 9025cebf12d176 Joey Gouly 2022-08-30 88 ALTERNATIVE("isb\n" 9025cebf12d176 Joey Gouly 2022-08-30 89 "mrs %0, cntvct_el0", 9025cebf12d176 Joey Gouly 2022-08-30 90 "nop\n" 9025cebf12d176 Joey Gouly 2022-08-30 91 __mrs_s("%0", SYS_CNTVCTSS_EL0), 9025cebf12d176 Joey Gouly 2022-08-30 92 ARM64_HAS_ECV) 9025cebf12d176 Joey Gouly 2022-08-30 93 : "=r" (res) 9025cebf12d176 Joey Gouly 2022-08-30 94 : 9025cebf12d176 Joey Gouly 2022-08-30 95 : "memory"); 9025cebf12d176 Joey Gouly 2022-08-30 96 77ec462536a13d Will Deacon 2021-03-18 97 arch_counter_enforce_ordering(res); 28b1a824a4f44d Vincenzo Frascino 2019-06-21 98 28b1a824a4f44d Vincenzo Frascino 2019-06-21 99 return res; 28b1a824a4f44d Vincenzo Frascino 2019-06-21 100 } 28b1a824a4f44d Vincenzo Frascino 2019-06-21 101 28b1a824a4f44d Vincenzo Frascino 2019-06-21 102 static __always_inline 28b1a824a4f44d Vincenzo Frascino 2019-06-21 103 const struct vdso_data *__arch_get_vdso_data(void) 28b1a824a4f44d Vincenzo Frascino 2019-06-21 104 { 28b1a824a4f44d Vincenzo Frascino 2019-06-21 @105 return _vdso_data; 28b1a824a4f44d Vincenzo Frascino 2019-06-21 106 } 28b1a824a4f44d Vincenzo Frascino 2019-06-21 107 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
