kernel/bpf/verifier.c:2276:19: error: use of undeclared identifier 'bpf_landlock_ruleset_btf_ids'

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

tree:   https://github.com/intel-lab-lkp/linux/commits/Justin-Suess/landlock-Move-operations-from-syscall-into-ruleset-code/20260408-053705
head:   7423cdaa89895ef6399743cfef9c7bfe1c22b8ad
commit: a0c8fd8936e1475411b42961f95d16772832b543 bpf: verifier: Add Landlock ruleset map support
date:   10 hours ago
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20260408/202604080920.Cm9eXBu4-lkp@intel.com/config)
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/20260408/202604080920.Cm9eXBu4-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604080920.Cm9eXBu4-lkp@intel.com/

All errors (new ones prefixed by >>):

>> kernel/bpf/verifier.c:2276:19: error: use of undeclared identifier 'bpf_landlock_ruleset_btf_ids'
    2276 |                         reg->btf_id = *bpf_landlock_ruleset_btf_ids;
         |                                        ^
   1 error generated.


vim +/bpf_landlock_ruleset_btf_ids +2276 kernel/bpf/verifier.c

  2252	
  2253	static void mark_ptr_not_null_reg(struct bpf_reg_state *reg)
  2254	{
  2255		if (base_type(reg->type) == PTR_TO_MAP_VALUE) {
  2256			const struct bpf_map *map = reg->map_ptr;
  2257	
  2258			if (map->inner_map_meta) {
  2259				reg->type = CONST_PTR_TO_MAP;
  2260				reg->map_ptr = map->inner_map_meta;
  2261				/* transfer reg's id which is unique for every map_lookup_elem
  2262				 * as UID of the inner map.
  2263				 */
  2264				if (btf_record_has_field(map->inner_map_meta->record,
  2265							 BPF_TIMER | BPF_WORKQUEUE | BPF_TASK_WORK)) {
  2266					reg->map_uid = reg->id;
  2267				}
  2268			} else if (map->map_type == BPF_MAP_TYPE_XSKMAP) {
  2269				reg->type = PTR_TO_XDP_SOCK;
  2270			} else if (map->map_type == BPF_MAP_TYPE_SOCKMAP ||
  2271				   map->map_type == BPF_MAP_TYPE_SOCKHASH) {
  2272				reg->type = PTR_TO_SOCKET;
  2273			} else if (map->map_type == BPF_MAP_TYPE_LANDLOCK_RULESET) {
  2274				reg->type = PTR_TO_BTF_ID | PTR_TRUSTED;
  2275				reg->btf = btf_vmlinux;
> 2276				reg->btf_id = *bpf_landlock_ruleset_btf_ids;
  2277			} else {
  2278				reg->type = PTR_TO_MAP_VALUE;
  2279			}
  2280			return;
  2281		}
  2282	
  2283		reg->type &= ~PTR_MAYBE_NULL;
  2284	}
  2285	

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