WARNING: line length of 90 exceeds 80 columns
#49: FILE: tools/testing/selftests/net/mptcp/mptcp_join.sh:1008:
+			./mptcp_connect -t ${timeout_poll} -l -p ${port} -s ${srv_proto} \

WARNING: line length of 87 exceeds 80 columns
#50: FILE: tools/testing/selftests/net/mptcp/mptcp_join.sh:1009:
+				${extra_srv_args} "::" < "${listener_in}" > "${sout}" &

total: 0 errors, 2 warnings, 0 checks, 62 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 c3d31fc6e891 ("selftests: mptcp: join: do_transfer: reduce code dup") 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, 62 lines checked