WARNING: line length of 82 exceeds 80 columns
#53: FILE: tools/testing/selftests/net/mptcp/mptcp_join.sh:3575:
+	if reset_with_tcp_filter "delete and re-add" ns2 10.0.3.2 REJECT OUTPUT &&

WARNING: line length of 91 exceeds 80 columns
#77: FILE: tools/testing/selftests/net/mptcp/mptcp_join.sh:3605:
+		ip netns exec "${ns2}" ${iptables} -D OUTPUT -s "10.0.3.2" -p tcp -j REJECT

total: 0 errors, 2 warnings, 0 checks, 52 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 4ab683f29f75 ("selftests: mptcp: join: check re-using ID of closed subflow") 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, 2 warnings, 0 checks, 52 lines checked