WARNING: Missing a blank line after declarations
#56: FILE: tools/testing/selftests/bpf/prog_tests/freplace_compatible.c:13:
+	__u32 flags;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,

CHECK: Alignment should match open parenthesis
#57: FILE: tools/testing/selftests/bpf/prog_tests/freplace_compatible.c:14:
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = buff,

WARNING: Missing a blank line after declarations
#111: FILE: tools/testing/selftests/bpf/prog_tests/freplace_compatible.c:68:
+	int err;
+	LIBBPF_OPTS(bpf_kprobe_opts, kprobe_opts);

WARNING: line length of 89 exceeds 80 columns
#135: FILE: tools/testing/selftests/bpf/prog_tests/freplace_compatible.c:92:
+	bpf_program__set_attach_target(prog_ext, bpf_program__fd(prog_kprobe), "kprobe");

WARNING: line length of 86 exceeds 80 columns
#143: FILE: tools/testing/selftests/bpf/prog_tests/freplace_compatible.c:100:
+	link_kprobe = bpf_program__attach_kprobe_opts(prog_kprobe, "bpf_fentry_test1",

total: 0 errors, 4 warnings, 1 checks, 164 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 954d86443f3c ("selftests/bpf: Add tests to verify freplace compatibility") 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, 1 checks, 164 lines checked