WARNING: line length of 97 exceeds 80 columns
#131: FILE: tools/testing/selftests/net/mptcp/mptcp_join.sh:1032:
+				${extra_srv_args} "${bind_addr}" < "${listener_in}" > "${sout}" &

WARNING: line length of 84 exceeds 80 columns
#239: FILE: tools/testing/selftests/net/mptcp/mptcp_join.sh:3355:
+	   continue_if mptcp_lib_kallsyms_has "mptcp_pm_get_endp_laminar_max$"; then

total: 0 errors, 2 warnings, 0 checks, 211 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 aafe7a6dad14 ("selftests: mptcp: join: validate extra bind cases") 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, 2 warnings, 0 checks, 211 lines checked