WARNING: line length of 84 exceeds 80 columns
#42: FILE: include/linux/bpf.h:114:
+	int (*map_get_hash)(struct bpf_map *map, u32 hash_buf_size, void *hash_buf);

CHECK: Alignment should match open parenthesis
#84: FILE: kernel/bpf/arraymap.c:179:
+static int array_map_get_hash(struct bpf_map *map, u32 hash_buf_size,
+			       void *hash_buf)

CHECK: Alignment should match open parenthesis
#89: FILE: kernel/bpf/arraymap.c:184:
+	bpf_sha256(array->value, (u64)array->elem_size * array->map.max_entries,
+	       hash_buf);

WARNING: line length of 81 exceeds 80 columns
#132: FILE: kernel/bpf/syscall.c:5059:
+		err = map->ops->map_get_hash(map, SHA256_DIGEST_SIZE, &map->sha);

total: 0 errors, 2 warnings, 2 checks, 124 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 bfa604db841b ("bpf: Return hashes of maps in BPF_OBJ_GET_INFO_BY_FD") 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, 2 warnings, 2 checks, 124 lines checked