WARNING: line length of 108 exceeds 80 columns
#53: FILE: tools/testing/selftests/net/gre_ipv6_lladdr.sh:53:
+	ip -netns "${NS0}" -6 route show table local type multicast ff00::/8 proto kernel | grep -q "${DEV}"

WARNING: line length of 85 exceeds 80 columns
#68: FILE: tools/testing/selftests/net/gre_ipv6_lladdr.sh:115:
+	check_ipv6_device_config gretest "${MATCH_REGEXP}" "${XRET}" "config: ${MSG}"

WARNING: line length of 85 exceeds 80 columns
#81: FILE: tools/testing/selftests/net/gre_ipv6_lladdr.sh:125:
+	check_ipv6_device_config gretest "${MATCH_REGEXP}" "${XRET}" "update: ${MSG}"

WARNING: line length of 92 exceeds 80 columns
#90: FILE: tools/testing/selftests/net/gre_ipv6_lladdr.sh:136:
+		printf "\n####\nTesting IPv6 configuration of ${GRE_TYPE} devices\n####\n\n"

WARNING: line length of 92 exceeds 80 columns
#99: FILE: tools/testing/selftests/net/gre_ipv6_lladdr.sh:152:
+		printf "\n####\nTesting IPv6 configuration of ${GRE_TYPE} devices\n####\n\n"

total: 0 errors, 5 warnings, 0 checks, 72 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 03af67a00334 ("selftests: Add IPv6 multicast route generation tests for GRE devices.") 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, 5 warnings, 0 checks, 72 lines checked