WARNING: line length of 90 exceeds 80 columns
#51: FILE: tools/testing/selftests/net/mptcp/mptcp_join.sh:3619:
+			chk_mptcp_info subflows 2 subflows 2 # only decr for additional sf

WARNING: line length of 87 exceeds 80 columns
#53: FILE: tools/testing/selftests/net/mptcp/mptcp_join.sh:3621:
+			pm_nl_add_endpoint $ns2 10.0.1.2 id 1 dev ns2eth1 flags subflow

total: 0 errors, 2 warnings, 0 checks, 34 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 592eb49cffa6 ("selftests: mptcp: join: check re-re-adding ID 0 endp") 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, 34 lines checked