CHECK: Lines should not end with a '(' #132: FILE: tools/testing/selftests/bpf/prog_tests/sock_destroy_release.c:107: + skel->links.sock_release = bpf_program__attach_cgroup( WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst #175: FILE: tools/testing/selftests/bpf/progs/sock_destroy_release.c:9: +volatile __u64 abort_cookie; total: 0 errors, 1 warnings, 1 checks, 194 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 ddacaf950f47 ("selftests/bpf: Ensure dst addr/port are preserved after socket abort") 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, 1 checks, 194 lines checked