WARNING: line length of 81 exceeds 80 columns
#26: FILE: tools/lib/bpf/btf.c:381:
+static int btf_type_size_unknown(const struct btf *btf, const struct btf_type *t)

WARNING: line length of 92 exceeds 80 columns
#39: FILE: tools/lib/bpf/btf.c:394:
+			layout_kinds = base_btf->hdr.layout_len / sizeof(struct btf_layout);

WARNING: line length of 82 exceeds 80 columns
#47: FILE: tools/lib/bpf/btf.c:402:
+	return sizeof(struct btf_type) + l[kind].info_sz + vlen * l[kind].elem_sz;

total: 0 errors, 3 warnings, 0 checks, 90 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 b3b0d6aa484d ("libbpf: Use layout to compute an unknown kind size") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES 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, 90 lines checked