WARNING: line length of 83 exceeds 80 columns
#29: FILE: kernel/bpf/helpers.c:1087:
+		struct bpf_array *array = container_of(map, struct bpf_array, map);

WARNING: line length of 93 exceeds 80 columns
#34: FILE: kernel/bpf/helpers.c:1092:
+	BUG_ON(map->map_type != BPF_MAP_TYPE_HASH && map->map_type != BPF_MAP_TYPE_LRU_HASH);

WARNING: Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE() plus recovery code (if feasible) instead of BUG() or variants
#34: FILE: kernel/bpf/helpers.c:1092:
+	BUG_ON(map->map_type != BPF_MAP_TYPE_HASH && map->map_type != BPF_MAP_TYPE_LRU_HASH);

total: 0 errors, 3 warnings, 0 checks, 50 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 20f31604e903 ("bpf: extract map key pointer calculation") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 3 warnings, 0 checks, 50 lines checked