WARNING: line length of 92 exceeds 80 columns
#70: FILE: tools/lib/bpf/features.c:739:
+		"kernel supports extended BTF vlen/kind", probe_kern_btf_vlen_kind_extended,

WARNING: line length of 88 exceeds 80 columns
#83: FILE: tools/lib/bpf/libbpf.c:3142:
+	bool has_vlen_kind_extended = kernel_supports(obj, FEAT_BTF_VLEN_KIND_EXTENDED);

WARNING: line length of 88 exceeds 80 columns
#96: FILE: tools/lib/bpf/libbpf.c:3160:
+	bool has_vlen_kind_extended = kernel_supports(obj, FEAT_BTF_VLEN_KIND_EXTENDED);

WARNING: line length of 90 exceeds 80 columns
#111: FILE: tools/lib/bpf/libbpf.c:3229:
+					 btf_kind(t) > 0x1f ? "BTF kind" : "BTF vlen", i);

total: 0 errors, 4 warnings, 0 checks, 97 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 333d9b658820 ("libbpf: Add feature for kernel extended vlen/kind support") 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, 4 warnings, 0 checks, 97 lines checked