WARNING: line length of 89 exceeds 80 columns
#67: FILE: tools/testing/selftests/net/rtnetlink.sh:333:
+	run_cmd ip -6 addr add $test_addr dev "$devdummy" valid_lft 300 preferred_lft 300

WARNING: line length of 95 exceeds 80 columns
#68: FILE: tools/testing/selftests/net/rtnetlink.sh:334:
+	run_cmd_grep "$test_prefix dev $devdummy proto kernel" ip -6 route show dev "$devdummy"

WARNING: line length of 89 exceeds 80 columns
#73: FILE: tools/testing/selftests/net/rtnetlink.sh:339:
+		end_test "FAIL: route not cleaned up when address with valid_lft deleted"

total: 0 errors, 3 warnings, 0 checks, 40 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 68041cb9cbb6 ("ipv6: clean up routes when manually removing address with a lifetime") 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, 3 warnings, 0 checks, 40 lines checked