Re: [PATCH bpf-next v1 2/8] bpf: Add bpf_page_to_pfn helper

[kernel test robot <lkp@intel.com>]

[-- Attachment #1: Type: text/plain, Size: 6825 bytes --]

Hi Kumar,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on bpf-next/master]

url:    https://github.com/0day-ci/linux/commits/Kumar-Kartikeya-Dwivedi/Introduce-BPF-iterators-for-io_uring-and-epoll/20211116-140234
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: i386-randconfig-a014-20211116 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/567c9b678d5ade1a63c993cfa10394902d4671ca
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Kumar-Kartikeya-Dwivedi/Introduce-BPF-iterators-for-io_uring-and-epoll/20211116-140234
        git checkout 567c9b678d5ade1a63c993cfa10394902d4671ca
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   ld: kernel/trace/bpf_trace.o: in function `bpf_tracing_func_proto':
>> kernel/trace/bpf_trace.c:1216: undefined reference to `bpf_page_to_pfn_proto'


vim +1216 kernel/trace/bpf_trace.c

  1093	
  1094	static const struct bpf_func_proto *
  1095	bpf_tracing_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
  1096	{
  1097		switch (func_id) {
  1098		case BPF_FUNC_map_lookup_elem:
  1099			return &bpf_map_lookup_elem_proto;
  1100		case BPF_FUNC_map_update_elem:
  1101			return &bpf_map_update_elem_proto;
  1102		case BPF_FUNC_map_delete_elem:
  1103			return &bpf_map_delete_elem_proto;
  1104		case BPF_FUNC_map_push_elem:
  1105			return &bpf_map_push_elem_proto;
  1106		case BPF_FUNC_map_pop_elem:
  1107			return &bpf_map_pop_elem_proto;
  1108		case BPF_FUNC_map_peek_elem:
  1109			return &bpf_map_peek_elem_proto;
  1110		case BPF_FUNC_ktime_get_ns:
  1111			return &bpf_ktime_get_ns_proto;
  1112		case BPF_FUNC_ktime_get_boot_ns:
  1113			return &bpf_ktime_get_boot_ns_proto;
  1114		case BPF_FUNC_ktime_get_coarse_ns:
  1115			return &bpf_ktime_get_coarse_ns_proto;
  1116		case BPF_FUNC_tail_call:
  1117			return &bpf_tail_call_proto;
  1118		case BPF_FUNC_get_current_pid_tgid:
  1119			return &bpf_get_current_pid_tgid_proto;
  1120		case BPF_FUNC_get_current_task:
  1121			return &bpf_get_current_task_proto;
  1122		case BPF_FUNC_get_current_task_btf:
  1123			return &bpf_get_current_task_btf_proto;
  1124		case BPF_FUNC_task_pt_regs:
  1125			return &bpf_task_pt_regs_proto;
  1126		case BPF_FUNC_get_current_uid_gid:
  1127			return &bpf_get_current_uid_gid_proto;
  1128		case BPF_FUNC_get_current_comm:
  1129			return &bpf_get_current_comm_proto;
  1130		case BPF_FUNC_trace_printk:
  1131			return bpf_get_trace_printk_proto();
  1132		case BPF_FUNC_get_smp_processor_id:
  1133			return &bpf_get_smp_processor_id_proto;
  1134		case BPF_FUNC_get_numa_node_id:
  1135			return &bpf_get_numa_node_id_proto;
  1136		case BPF_FUNC_perf_event_read:
  1137			return &bpf_perf_event_read_proto;
  1138		case BPF_FUNC_current_task_under_cgroup:
  1139			return &bpf_current_task_under_cgroup_proto;
  1140		case BPF_FUNC_get_prandom_u32:
  1141			return &bpf_get_prandom_u32_proto;
  1142		case BPF_FUNC_probe_write_user:
  1143			return security_locked_down(LOCKDOWN_BPF_WRITE_USER) < 0 ?
  1144			       NULL : bpf_get_probe_write_proto();
  1145		case BPF_FUNC_probe_read_user:
  1146			return &bpf_probe_read_user_proto;
  1147		case BPF_FUNC_probe_read_kernel:
  1148			return security_locked_down(LOCKDOWN_BPF_READ_KERNEL) < 0 ?
  1149			       NULL : &bpf_probe_read_kernel_proto;
  1150		case BPF_FUNC_probe_read_user_str:
  1151			return &bpf_probe_read_user_str_proto;
  1152		case BPF_FUNC_probe_read_kernel_str:
  1153			return security_locked_down(LOCKDOWN_BPF_READ_KERNEL) < 0 ?
  1154			       NULL : &bpf_probe_read_kernel_str_proto;
  1155	#ifdef CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
  1156		case BPF_FUNC_probe_read:
  1157			return security_locked_down(LOCKDOWN_BPF_READ_KERNEL) < 0 ?
  1158			       NULL : &bpf_probe_read_compat_proto;
  1159		case BPF_FUNC_probe_read_str:
  1160			return security_locked_down(LOCKDOWN_BPF_READ_KERNEL) < 0 ?
  1161			       NULL : &bpf_probe_read_compat_str_proto;
  1162	#endif
  1163	#ifdef CONFIG_CGROUPS
  1164		case BPF_FUNC_get_current_cgroup_id:
  1165			return &bpf_get_current_cgroup_id_proto;
  1166		case BPF_FUNC_get_current_ancestor_cgroup_id:
  1167			return &bpf_get_current_ancestor_cgroup_id_proto;
  1168	#endif
  1169		case BPF_FUNC_send_signal:
  1170			return &bpf_send_signal_proto;
  1171		case BPF_FUNC_send_signal_thread:
  1172			return &bpf_send_signal_thread_proto;
  1173		case BPF_FUNC_perf_event_read_value:
  1174			return &bpf_perf_event_read_value_proto;
  1175		case BPF_FUNC_get_ns_current_pid_tgid:
  1176			return &bpf_get_ns_current_pid_tgid_proto;
  1177		case BPF_FUNC_ringbuf_output:
  1178			return &bpf_ringbuf_output_proto;
  1179		case BPF_FUNC_ringbuf_reserve:
  1180			return &bpf_ringbuf_reserve_proto;
  1181		case BPF_FUNC_ringbuf_submit:
  1182			return &bpf_ringbuf_submit_proto;
  1183		case BPF_FUNC_ringbuf_discard:
  1184			return &bpf_ringbuf_discard_proto;
  1185		case BPF_FUNC_ringbuf_query:
  1186			return &bpf_ringbuf_query_proto;
  1187		case BPF_FUNC_jiffies64:
  1188			return &bpf_jiffies64_proto;
  1189		case BPF_FUNC_get_task_stack:
  1190			return &bpf_get_task_stack_proto;
  1191		case BPF_FUNC_copy_from_user:
  1192			return prog->aux->sleepable ? &bpf_copy_from_user_proto : NULL;
  1193		case BPF_FUNC_snprintf_btf:
  1194			return &bpf_snprintf_btf_proto;
  1195		case BPF_FUNC_per_cpu_ptr:
  1196			return &bpf_per_cpu_ptr_proto;
  1197		case BPF_FUNC_this_cpu_ptr:
  1198			return &bpf_this_cpu_ptr_proto;
  1199		case BPF_FUNC_task_storage_get:
  1200			return &bpf_task_storage_get_proto;
  1201		case BPF_FUNC_task_storage_delete:
  1202			return &bpf_task_storage_delete_proto;
  1203		case BPF_FUNC_for_each_map_elem:
  1204			return &bpf_for_each_map_elem_proto;
  1205		case BPF_FUNC_snprintf:
  1206			return &bpf_snprintf_proto;
  1207		case BPF_FUNC_get_func_ip:
  1208			return &bpf_get_func_ip_proto_tracing;
  1209		case BPF_FUNC_get_branch_snapshot:
  1210			return &bpf_get_branch_snapshot_proto;
  1211		case BPF_FUNC_find_vma:
  1212			return &bpf_find_vma_proto;
  1213		case BPF_FUNC_trace_vprintk:
  1214			return bpf_get_trace_vprintk_proto();
  1215		case BPF_FUNC_page_to_pfn:
> 1216			return &bpf_page_to_pfn_proto;
  1217		default:
  1218			return bpf_base_func_proto(func_id);
  1219		}
  1220	}
  1221	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 46321 bytes --]