WARNING: Argument 'func' is not used in function-like macro
#32: FILE: tools/bpf/bpftool/sign.c:33:
+#define ERR_get_error_all(file, line, func, data, flags) \
+	ERR_get_error_line_data(file, line, data, flags)

total: 0 errors, 1 warnings, 0 checks, 12 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 388c2be434e3 ("bpftool: Allow bpftool to build with openssl < 3") 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, 1 warnings, 0 checks, 12 lines checked