WARNING: line length of 82 exceeds 80 columns
#72: FILE: tools/testing/selftests/drivers/net/hw/ethtool_rmon.sh:28:
+	current=$(run_on "$iface" ip -j link show dev "$iface" | jq -r '.[0].mtu')

WARNING: line length of 84 exceeds 80 columns
#75: FILE: tools/testing/selftests/drivers/net/hw/ethtool_rmon.sh:30:
+		run_on "$iface" ip link set dev "$iface" mtu "$required" || return 1

WARNING: line length of 88 exceeds 80 columns
#91: FILE: tools/testing/selftests/drivers/net/hw/ethtool_rmon.sh:58:
+	run_on "$neigh" "$MZ" "$neigh" -q -c "$num_rx" -p "$len" -a own -b bcast -d 10us

WARNING: line length of 88 exceeds 80 columns
#92: FILE: tools/testing/selftests/drivers/net/hw/ethtool_rmon.sh:59:
+	run_on "$iface" "$MZ" "$iface" -q -c "$num_tx" -p "$len" -a own -b bcast -d 10us

WARNING: line length of 86 exceeds 80 columns
#111: FILE: tools/testing/selftests/drivers/net/hw/ethtool_rmon.sh:122:
+		netif_mtu["$iface"]=$(run_on "$iface" ip -j link show dev "$iface" | \

total: 0 errors, 5 warnings, 0 checks, 58 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 b2465ec6a8cc ("selftests: drivers: hw: update ethtool_rmon to work with a single local interface") 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, 5 warnings, 0 checks, 58 lines checked