CHECK: Please don't use multiple blank lines #25: FILE: tools/testing/selftests/bpf/prog_tests/timer.c:25: + WARNING: Missing a blank line after declarations #53: FILE: tools/testing/selftests/bpf/prog_tests/timer.c:52: + int err, prog_fd; + LIBBPF_OPTS(bpf_test_run_opts, topts); total: 0 errors, 1 warnings, 1 checks, 87 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 0ece4a8ef70a ("selftests/bpf: Refactor timer selftests") 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, 87 lines checked