tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 00fccee10860a6b522c55bd4b2f4b40d349c2b52 commit: 1119ec49ac4ac643e6d7c9a5a834040aef87612e [2866/2866] mm, fs: Add BPF_READAHEAD build option for bpf readhead config: x86_64-buildonly-randconfig-002-20250909 (https://download.01.org/0day-ci/archive/20250908/202509081908.rkRF0I49-lkp@i...) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250908/202509081908.rkRF0I49-lkp@i...) 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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202509081908.rkRF0I49-lkp@intel.com/ All errors (new ones prefixed by >>):

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ld.lld: error: undefined symbol: trace_event_buffer_reserve

...

referenced by usercopy_64.c vmlinux.o:(trace_event_raw_event_initcall_level) referenced by usercopy_64.c vmlinux.o:(trace_event_raw_event_initcall_start) referenced by usercopy_64.c vmlinux.o:(trace_event_raw_event_initcall_finish) referenced 823 more times -- ld.lld: error: undefined symbol: trace_event_buffer_commit referenced by usercopy_64.c vmlinux.o:(trace_event_raw_event_initcall_level) referenced by usercopy_64.c vmlinux.o:(trace_event_raw_event_initcall_start) referenced by usercopy_64.c vmlinux.o:(trace_event_raw_event_initcall_finish) referenced 823 more times -- ld.lld: error: undefined symbol: trace_print_bitmask_seq referenced by usercopy_64.c vmlinux.o:(trace_raw_output_ipi_raise) referenced by usercopy_64.c vmlinux.o:(trace_raw_output_ipi_send_cpumask) -- ld.lld: error: undefined symbol: trace_output_call referenced by usercopy_64.c vmlinux.o:(trace_raw_output_pm_qos_update_flags) referenced by usercopy_64.c vmlinux.o:(trace_raw_output_802154_rdev_set_short_addr) -- ld.lld: error: undefined symbol: blk_fill_rwbs referenced by usercopy_64.c vmlinux.o:(trace_event_raw_event_block_rq_requeue) referenced by usercopy_64.c vmlinux.o:(perf_trace_block_rq_requeue) referenced by usercopy_64.c vmlinux.o:(trace_event_raw_event_block_rq_completion) referenced 13 more times -- ld.lld: error: undefined symbol: trace_print_hex_seq referenced by usercopy_64.c vmlinux.o:(trace_raw_output_host1x_cdma_push_gather) referenced by usercopy_64.c vmlinux.o:(trace_raw_output_regmap_bulk) referenced by usercopy_64.c vmlinux.o:(trace_raw_output_scsi_dispatch_cmd_start) referenced 9 more times -- ld.lld: error: undefined symbol: __tracepoint_devres_log referenced by usercopy_64.c vmlinux.o:(add_dr) referenced by usercopy_64.c vmlinux.o:(devres_remove) referenced by usercopy_64.c vmlinux.o:(devres_release_all) referenced 15 more times -- ld.lld: error: undefined symbol: __SCT__tp_func_devres_log referenced by usercopy_64.c vmlinux.o:(add_dr) referenced by usercopy_64.c vmlinux.o:(devres_remove) referenced by usercopy_64.c vmlinux.o:(devres_release_all) referenced 6 more times -- ld.lld: error: undefined symbol: nvme_trace_disk_name referenced by usercopy_64.c vmlinux.o:(trace_raw_output_nvme_setup_cmd) referenced by usercopy_64.c vmlinux.o:(trace_raw_output_nvme_complete_rq) referenced by usercopy_64.c vmlinux.o:(trace_raw_output_nvme_sq) -- ld.lld: error: undefined symbol: nvme_trace_parse_fabrics_cmd referenced by usercopy_64.c vmlinux.o:(trace_raw_output_nvme_setup_cmd) -- ld.lld: error: undefined symbol: nvme_trace_parse_nvm_cmd referenced by usercopy_64.c vmlinux.o:(trace_raw_output_nvme_setup_cmd) ..

Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for PGP_PRELOAD Depends on [n]: CRYPTO [=y] && ASYMMETRIC_KEY_TYPE [=n] Selected by [y]: - PGP_PRELOAD_PUBLIC_KEYS [=y] && CRYPTO [=y] -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki