WARNING: line length of 83 exceeds 80 columns
#117: FILE: tools/testing/selftests/bpf/bpftool_helpers.c:70:
+int get_bpftool_command_output(char *args, char *output_buf, size_t output_max_len)

WARNING: line length of 84 exceeds 80 columns
#138: FILE: tools/testing/selftests/bpf/bpftool_helpers.h:11:
+int get_bpftool_command_output(char *args, char *output_buf, size_t output_max_len);

total: 0 errors, 2 warnings, 0 checks, 94 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 8c55569e84f6 ("bpf/selftests: add a few helpers for bpftool testing") 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, 2 warnings, 0 checks, 94 lines checked