CHECK: Please don't use multiple blank lines
#40: FILE: tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:818:
 
+

WARNING: line length of 92 exceeds 80 columns
#65: FILE: tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:843:
+		test_prepare_key(&test_ao[i], DEFAULT_TEST_ALGO, this_ip_dest, false, false,

WARNING: line length of 87 exceeds 80 columns
#67: FILE: tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:845:
+				 strlen(test_password_scratch), test_password_scratch);

WARNING: line length of 82 exceeds 80 columns
#80: FILE: tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:858:
+		if (setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &test_ao[randidx],

CHECK: Alignment should match open parenthesis
#84: FILE: tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:862:
+		memcpy(&test_ao[randidx], &test_ao[FILTER_TEST_NKEYS - 1 - i],
+				sizeof(struct tcp_ao_add));

WARNING: line length of 90 exceeds 80 columns
#100: FILE: tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:878:
+			if (memcmp(expected[i].key, actual[j].key, TCP_AO_MAXKEYLEN) == 0)

WARNING: line length of 87 exceeds 80 columns
#125: FILE: tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:903:
+	if (compare_mkts(expected, nexpected, filtered_keys, filtered_keys[0].nkeys)) {

WARNING: line length of 84 exceeds 80 columns
#148: FILE: tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:926:
+	memcpy(&filter.addr, &original_keys[f].addr, sizeof(original_keys[f].addr));

WARNING: line length of 91 exceeds 80 columns
#150: FILE: tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:928:
+	filter_keys_checked(sk, &filter, &original_keys[f], 1, "by sndid, rcvid, address");

WARNING: line length of 85 exceeds 80 columns
#196: FILE: tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:974:
+	filter_keys_checked(sk, &filter, expected_keys, nmatches, "by sndid, rcvid");

WARNING: line length of 83 exceeds 80 columns
#205: FILE: tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:983:
+		test_ok("filter keys: correct nkeys when in.nkeys < matched_keys");

total: 0 errors, 9 warnings, 2 checks, 204 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 679ad6268a8c ("selftest/tcp-ao: Add filter tests") 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, 9 warnings, 2 checks, 204 lines checked