WARNING: line length of 84 exceeds 80 columns
#42: FILE: tools/lib/bpf/libbpf.h:1698:
+				      int kfunc_id, __s16 btf_fd, const void *opts);

WARNING: line length of 86 exceeds 80 columns
#88: FILE: tools/lib/bpf/libbpf_probes.c:473:
+	if (err == 0 && (strstr(buf, "not allowed") || strstr(buf, "not a function")))

total: 0 errors, 2 warnings, 0 checks, 64 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 881e5ae7d377 ("libbpf: Add libbpf_probe_bpf_kfunc API") 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, 0 checks, 64 lines checked