WARN: resolve_btfids: unresolved symbol vfs_truncate

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   9a6b294ab496650e9f270123730df37030911b55
commit: 7b99f75942da332e3f4f865e55a10fec95a30d4f bpf: Add --skip_encoding_btf_inconsistent_proto, --btf_gen_optimized to pahole flags for v1.25
date:   7 months ago
config: arm-randconfig-r005-20230402 (https://download.01.org/0day-ci/archive/20231222/202312220719.pwcoWicn-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231222/202312220719.pwcoWicn-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/202312220719.pwcoWicn-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   WARN: resolve_btfids: unresolved symbol prog_test_ref_kfunc
   WARN: resolve_btfids: unresolved symbol cgroup
>> WARN: resolve_btfids: unresolved symbol vfs_truncate
   WARN: resolve_btfids: unresolved symbol bpf_obj_new_impl
>> WARN: resolve_btfids: unresolved symbol bpf_lookup_user_key
   WARN: resolve_btfids: unresolved symbol bpf_dynptr_from_xdp
   WARN: resolve_btfids: unresolved symbol bpf_dynptr_from_skb

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