WARNING: Missing a blank line after declarations
#51: FILE: tools/testing/selftests/bpf/prog_tests/map_lock.c:108:
+	char buff[128] = {};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,

WARNING: line length of 88 exceeds 80 columns
#67: FILE: tools/testing/selftests/bpf/prog_tests/map_lock.c:124:
+	err = bpf_map__update_elem(skel->maps.map, &key, sizeof(key), &val, sizeof(val),

WARNING: line length of 88 exceeds 80 columns
#72: FILE: tools/testing/selftests/bpf/prog_tests/map_lock.c:129:
+	err = bpf_map__update_elem(skel->maps.map, &key, sizeof(key), &val, sizeof(val),

WARNING: line length of 83 exceeds 80 columns
#146: FILE: tools/testing/selftests/bpf/progs/test_map_lock.c:86:
+	err_exist = bpf_map_update_elem(&map, &key, &val, BPF_NOEXIST | BPF_EXIST);

total: 0 errors, 4 warnings, 0 checks, 119 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 7d25dd4d44ea ("selftests/bpf: Add tests to verify BPF_F_LOCK restrictions") 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, 4 warnings, 0 checks, 119 lines checked