WARNING: Missing a blank line after declarations
#30: FILE: tools/testing/selftests/bpf/prog_tests/recursive_attach.c:157:
+		int prog_fd = __atomic_load_n((int *)arg, __ATOMIC_SEQ_CST);
+		LIBBPF_OPTS(bpf_test_run_opts, topts);

total: 0 errors, 1 warnings, 0 checks, 70 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 7d6eebf1abe0 ("selftests/bpf: Stress test attaching a BPF prog to another BPF prog") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE 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, 0 checks, 70 lines checked